/* css/components.css */

/* --- CONTAINER CON CHO MÀN HÌNH HỌC --- */
.learn-wrapper {
  width: 100%;
  max-width: 800px; /* Mở rộng sang hai bên giống Mochi trên PC */
  background: #ffffff;
  height: 95vh;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: 2.5vh auto;
}

/* --- THANH TIẾN TRÌNH MASCOT --- */
.learn-header-area {
  padding: 20px 30px 5px 30px;
}
.top-bar {
  display: flex;
  align-items: center;
  gap: 20px;
}
.close-btn {
  font-size: 26px;
  color: var(--text-muted);
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
.close-btn:hover {
  color: var(--danger-color);
}

.progress-track {
  flex: 1;
  height: 16px;
  background: var(--border-color);
  border-radius: 20px;
  position: relative;
}
.progress-fill {
  height: 100%;
  background: var(--primary-color);
  border-radius: 20px;
  width: 0%;
  transition: width 0.4s ease;
}
.progress-mascot {
  position: absolute;
  top: -14px;
  font-size: 28px;
  transition: left 0.4s ease;
  left: 0%;
  transform: translateX(-50%);
}
.step-indicator {
  text-align: center;
  font-size: 15px;
  font-weight: 600; /* Giảm độ đậm chữ */
  color: var(--text-muted);
  margin-top: 15px;
}

.learn-content-area {
  flex: 1;
  padding: 40px 30px 42vh 30px; /* Đệm đáy 42vh để nhường chỗ hoàn toàn cho Bảng kết quả */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start; /* MA THUẬT: Đẩy toàn bộ nội dung lên trên */
  overflow-y: auto;
}
/* Nút âm thanh loa/sên tốc độ */
.audio-controls-inline {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
  width: 100%;
}
.audio-btn {
  width: 55px;
  height: 55px;
  background: #fff;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: 0.2s;
  color: var(--secondary-color);
}
.audio-btn:hover {
  background: var(--bg-body);
}
.audio-btn:active {
  transform: scale(0.92);
}

/* --- BƯỚC 1: FLASHCARD 3D (MOCHI STYLE CHUẨN MỰC) --- */
.flip-card {
  width: 100%;
  max-width: 450px;
  height: clamp(400px, 60vh, 520px); /* Kéo dài thẻ ra như cũ, cao ráo đẹp đẽ */
  perspective: 1000px;
  cursor: pointer;
  margin-top: 10px;
  flex-shrink: 0; /* QUAN TRỌNG: Phép thuật chống bị bóp ngắn lại khi có khoảng đệm */
}
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.5s;
  transform-style: preserve-3d;
}
.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

/* Mặt trước và sau: Không còn dùng center cứng nữa, xếp từ trên xuống */
.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  padding: 25px;
  border: 2px solid var(--bg-body);
}

/* Cụm Loa: Nổi bồng bềnh sát mép trên thẻ */
.mochi-fc-audio-group {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 25px;
  margin-top: -45px;
}
.mochi-fc-audio-group .audio-btn {
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
  background: white;
}

/* Khung bọc Ảnh to chà bá */
.mochi-fc-img-wrap {
  width: 100%;
  flex: 1; /* MA THUẬT Ở ĐÂY: Khung ảnh sẽ tự bành trướng, chiếm TOÀN BỘ không gian thừa của thẻ */
  min-height: 180px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 15px;
  background: transparent; /* Đổi thành trong suốt luôn cho ảnh xịn hòa vào nền thẻ */
  display: flex;
  align-items: center;
  justify-content: center;
}
#fcImage {
  width: 100%;
  height: 100%;
  object-fit: contain; /* Tuyệt đối không được dùng cover */
}
/* Câu ví dụ ở mặt trước */
.mochi-fc-example {
  font-size: clamp(
    16px,
    2.5vh,
    20px
  ); /* MA THUẬT: Màn cùi tự giảm chữ về 16px, màn xịn to lên 20px */
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  text-align: center;
  padding: 0 10px;
  overflow-y: auto; /* Chống tràn nếu câu ví dụ quá dài */
}

/* MẶT SAU: Căn giữa theo chiều dọc */
.flip-card-back {
  transform: rotateY(180deg);
  border-color: var(--secondary-color);
  background: #f0f9ff;
  align-items: center;
  justify-content: center; /* Trở lại center cho mặt sau */
}
.mochi-fc-word {
  font-size: clamp(
    30px,
    6vh,
    45px
  ); /* Tương tự, chữ bự tự thu nhỏ lại trên màn lùn */
  font-weight: 900;
  color: var(--secondary-color);
  margin-bottom: 10px;
}
.mochi-fc-ipa {
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-family: monospace;
}
.mochi-fc-meaning {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
}
.mochi-fc-hint {
  font-size: 14px;
  color: #cbd5e1;
  font-weight: 700;
  margin-top: auto;
  text-align: center;
}

/* Dark Mode Fixes */
body.dark-theme .flip-card-front,
body.dark-theme .flip-card-back {
  background-color: #0f172a;
  border-color: #1e293b;
}
body.dark-theme .mochi-fc-audio-group .audio-btn {
  background: #1e293b;
  border-color: #334155;
  color: #38bdf8;
}
body.dark-theme .mochi-fc-word {
  color: #38bdf8;
}

/* --- BƯỚC 2 & 4: Ô GÕ CHỮ TIẾNG ANH --- */
.input-en-view {
  width: 100%;
  text-align: center;
  display: none;
  margin-top: 10px;
}
.vi-title {
  font-size: 26px;
  font-weight: 600; /* Đã giảm độ in đậm */
  color: var(--text-main);
  margin-bottom: 30px;
  line-height: 1.4;
}
/* ================= KHU VỰC GÕ TỪ (SPELLING SLOTS) ================= */
.slots-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  width: 100%;
  margin-bottom: 25px;
}
.slots-outer-box {
  border: 2px solid var(--border-color);
  border-radius: 14px;
  padding: 12px 15px;
  display: inline-flex;
  justify-content: flex-start;
  background: var(--bg-surface);
  width: 100%;
  overflow-x: auto; /* Vuốt ngang nếu từ tiếng anh quá dài */
  white-space: nowrap;
}
body.dark-theme .slots-outer-box {
  background: #1e293b;
  border-color: #334155;
}
.slots-outer-box::-webkit-scrollbar {
  display: none;
} /* Giấu thanh cuộn */

.slots-container {
  display: flex;
  gap: 6px;
  justify-content: flex-start;
  flex-wrap: nowrap;
  margin: 0 auto;
}
.slot {
  width: 45px;
  height: 55px;
  border-bottom: 4px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 600; /* Giảm độ in đậm chữ gõ */
  color: var(--text-main);
  text-transform: lowercase;
  position: relative;
  transition: all 0.2s ease;
}
body.dark-theme .slot {
  border-bottom-color: #334155;
}

.slot.filled {
  border-bottom-color: var(--secondary-color);
}
.slot.active {
  border-bottom-color: var(--primary-color);
}
.slot.active::after {
  content: "";
  position: absolute;
  width: 3px;
  height: 30px;
  background-color: var(--primary-color);
  animation: blink 1s infinite;
}
.slot.hint {
  color: #94a3b8;
  border-bottom-color: #cbd5e1;
}

@keyframes popIn {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.hidden-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: text;
  z-index: 10;
}

.rq-cloze-blank {
  display: inline-block;
  color: var(--primary-color);
  font-weight: 700;
  letter-spacing: 2px;
  padding: 0 5px;
  margin: 0 5px;
}

/* --- BƯỚC 3: Ô NHẬP NGHĨA TIẾNG VIỆT --- */
.input-vi-view {
  width: 90%;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-top: 10px;
}
.vi-type-input {
  width: 100%;
  padding: 20px;
  font-size: 20px;
  text-align: center;
  border: 2px solid var(--border-color);
  border-radius: 20px;
  outline: none;
  font-weight: 600; /* Đã giảm độ in đậm */
  color: var(--text-main);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.01);
  transition: 0.2s;
}
.vi-type-input:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.btn-continue-out {
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: 30px;
  padding: 16px 20px;
  font-size: 18px;
  font-weight: 700;
  width: 80%;
  margin: auto auto 25px auto;
  box-shadow: 0 6px 0 #16a34a;
  transition: 0.1s;
  display: none;
}
.btn-continue-out:active {
  transform: translateY(6px);
  box-shadow: none;
}

/* --- BẢNG THÔNG BÁO KẾT QUẢ SÁT ĐÁY (MOCHI STYLE) --- */
.bottom-drawer {
  position: absolute;
  bottom: -100%;
  left: 0;
  width: 100%;
  min-height: 40vh; /* Cao đúng 2/5 màn hình */
  border-radius: 24px 24px 0 0;
  padding: 30px 20px 20px 20px;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.2);
  transition: bottom 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  z-index: 100;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly; /* Dàn thưa khoảng cách các chữ bên trong */
  align-items: center;
  text-align: center;
}
.bottom-drawer.show {
  bottom: 0;
}
.bottom-drawer.correct {
  background: #22c55e;
  color: white;
}
.bottom-drawer.wrong {
  background: #ff5a5f;
  color: white;
}

.overlay.show {
  opacity: 0;
  pointer-events: none;
}

.drawer-mascot {
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 26px;
  background: white;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #0f172a;
}

.drawer-left {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 10px;
}
.drawer-status {
  display: none;
} /* ĐÃ ẨN CHỮ: Sai rồi / Chính xác */
.drawer-word {
  font-size: 28px;
  font-weight: 800;
  margin: 0;
  line-height: 1.1;
}
.drawer-ipa {
  font-size: 16px;
  font-weight: 600;
  opacity: 0.9;
  font-family: monospace;
}
.drawer-meaning {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.drawer-example {
  font-size: 15px;
  font-style: italic;
  opacity: 0.9;
  text-align: left;
  background: rgba(0, 0, 0, 0.1);
  padding: 10px 15px;
  border-radius: 12px;
  width: 100%;
  margin-top: 5px;
}

.drawer-right {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  margin-top: 15px;
}
.drawer-audio-group {
  display: flex;
  gap: 10px;
}
.drawer-audio {
  background: rgba(0, 0, 0, 0.15);
  border: none;
  color: white;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
}
.btn-drawer-next {
  flex: none;
  width: 200px;
  background: white;
  border: none;
  border-radius: 30px;
  padding: 14px 15px;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
  transition: 0.1s;
  margin: 0 auto;
}
.btn-drawer-next:active {
  transform: translateY(4px);
  box-shadow: none;
}

.bottom-drawer.correct .btn-drawer-next {
  color: #16a34a;
}
.bottom-drawer.wrong .btn-drawer-next {
  color: #ef4444;
}

/* DARK MODE ĐỎ DỊU */
body.dark-theme .bottom-drawer.correct {
  background: #15803d;
}
body.dark-theme .bottom-drawer.wrong {
  background: #e03131;
}
/* Khối khóa học ở Trang chủ */
.home-course-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.course-card-hm {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 20px;
  width: 340px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.03);
  transition: 0.2s;
}
.course-card-hm:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(59, 130, 246, 0.1);
  border-color: #cbd5e1;
}
.course-img-hm {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 15px;
  background: #e2e8f0;
}
.course-header-hm {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}
.course-title-hm {
  font-size: 20px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.3;
}
.status-badge {
  background: #fff7ed;
  color: #f97316;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid #ffedd5;
}
.course-stats-hm {
  color: #64748b;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 15px;
}
.btn-start-hm {
  width: 100%;
  padding: 14px;
  background: #3b82f6;
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
.btn-start-hm:hover {
  background: #2563eb;
}

/* Danh sách Bài học bên trong Course Detail */
.back-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 800;
  color: #64748b;
  cursor: pointer;
  margin-bottom: 20px;
  transition: 0.2s;
}
.back-nav:hover {
  color: #0f172a;
  transform: translateX(-5px);
}

.course-banner {
  background: #ffc107;
  width: 100%;
  padding: 18px;
  border-radius: 20px;
  text-align: center;
  font-size: 20px;
  font-weight: 900;
  color: #422006;
  margin-bottom: 30px;
  box-shadow: 0 6px 0 #d97706;
}

.lesson-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding-bottom: 50px;
}
.lesson-card {
  display: flex;
  align-items: center;
  padding: 15px;
  border-radius: 20px;
  background: #f1f5f9;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  border: 2px solid transparent;
}
.lesson-card:hover:not(.locked) {
  transform: translateY(-4px) scale(1.01); /* Trôi nhẹ lên và phình ra tí xíu */
  box-shadow: 0 12px 25px -5px rgba(59, 130, 246, 0.15); /* Tỏa hào quang mờ */
  border-color: rgba(59, 130, 246, 0.3);
}
.lesson-card.active {
  background: #22c55e;
  box-shadow: 0 10px 25px rgba(34, 197, 94, 0.3);
  border-color: #16a34a;
}
.lesson-card.locked {
  opacity: 0.7;
  cursor: not-allowed;
}

.lesson-card:hover:not(.locked) {
  transform: translateY(-3px);
}
.lesson-card:active:not(.locked) {
  transform: scale(0.98);
}

.lesson-icon-ring {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  padding: 4px;
  background: #cbd5e1;
  margin-right: 20px;
  flex-shrink: 0;
}
.lesson-card.active .lesson-icon-ring {
  background: #facc15;
}
.lesson-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  border: 3px solid #fff;
}

.lesson-info {
  flex: 1;
}
.lesson-title {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 2px;
}
.lesson-sub {
  font-size: 15px;
  font-weight: 600;
  color: #64748b;
}
.lesson-card.active .lesson-title,
.lesson-card.active .lesson-sub {
  color: #ffffff;
}

/* ================= CSS CHO SỔ TỪ VỰNG MOCHI STYLE & MODAL ================= */
.vocab-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.btn-add-word {
  background: var(--success-color);
  color: white;
  padding: 12px 20px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 800;
  box-shadow: 0 5px 0 #16a34a;
  transition: 0.1s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-add-word:active {
  transform: translateY(5px);
  box-shadow: none;
}

.vocab-mochi-wrapper {
  background: #fff;
  padding: 30px;
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

/* --- TABS CẤP ĐỘ --- */
.mochi-tabs {
  display: flex;
  justify-content: space-between;
  text-align: center;
  margin-bottom: 5px;
  font-weight: 800;
  color: #cbd5e1;
  font-size: 18px;
}
.mochi-tab {
  flex: 1;
  padding-bottom: 10px;
  cursor: pointer;
  transition: 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.mochi-tab:hover {
  color: #94a3b8;
}
.mochi-tab.active {
  color: #475569;
}
.mochi-stars {
  font-size: 12px;
  color: #fbbf24;
  margin-top: 5px;
  display: none;
  letter-spacing: 2px;
}
.mochi-tab.active .mochi-stars {
  display: block;
}

/* --- THANH MÀU --- */
.mochi-progress-line {
  display: flex;
  height: 8px;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 30px;
}
.m-line {
  flex: 1;
}
.m-line.l1 {
  background: #ef4444;
}
.m-line.l2 {
  background: #facc15;
}
.m-line.l3 {
  background: #38bdf8;
}
.m-line.l4 {
  background: #3b82f6;
}
.m-line.l5 {
  background: #1e3a8a;
}

/* --- THANH TÌM KIẾM --- */
.mochi-search-bar {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
}
.mochi-search-input {
  width: 100%;
  max-width: 450px;
  padding: 14px 25px;
  border-radius: 30px;
  background: #f1f5f9;
  border: 2px solid transparent;
  font-size: 16px;
  font-weight: 700;
  color: #475569;
  outline: none;
  transition: 0.2s;
}
.mochi-search-input:focus {
  border-color: #cbd5e1;
  background: #fff;
}
.mochi-btn-search {
  background: #22c55e;
  color: white;
  border: none;
  border-radius: 30px;
  padding: 0 30px;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(34, 197, 94, 0.2);
  transition: 0.2s;
}
.mochi-btn-search:hover {
  transform: translateY(-2px);
}

/* --- DANH SÁCH TỪ CHUẨN CỘT --- */
.mochi-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}
.m-load-more-wrap {
  display: flex;
  justify-content: center;
  padding: 18px 0 4px;
}
.btn-load-more-vocab {
  background: #3b82f6;
  color: #fff;
  border-radius: 14px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 5px 0 #2563eb;
}
.btn-load-more-vocab:active {
  transform: translateY(4px);
  box-shadow: none;
}

/* ================= CSS CHO CÀI ĐẶT (SETTINGS) ================= */
.settings-wrapper {
  background: #fff;
  padding: 30px;
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  max-width: 650px;
  margin: 0 auto;
}

.settings-group {
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: #f8fafc;
  border-radius: 16px;
  border: 1px solid #f1f5f9;
  transition: 0.2s;
}
.setting-item:hover {
  background: #f1f5f9;
}

.setting-info {
  flex: 1;
  padding-right: 20px;
}
.setting-name {
  font-size: 18px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 4px;
}
.setting-desc {
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
}

/* Công tắc trượt (Toggle Switch) kiểu iOS */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 54px;
  height: 30px;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: 0.4s;
  border-radius: 34px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
input:checked + .slider {
  background-color: #22c55e;
}
input:checked + .slider:before {
  transform: translateX(24px);
}

/* Select Box */
.setting-select {
  padding: 10px 15px;
  border-radius: 12px;
  border: 2px solid #e2e8f0;
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  outline: none;
  cursor: pointer;
  background: white;
  font-family: inherit;
}
.setting-select:focus {
  border-color: #3b82f6;
}

/* Khu vực nguy hiểm */
.danger-zone {
  border-top: 2px dashed #e2e8f0;
  padding-top: 30px;
}
.danger-title {
  color: #ef4444;
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.btn-reset-data {
  background: #fef2f2;
  color: #ef4444;
  border: 2px solid #fecaca;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
  white-space: nowrap;
}
.btn-reset-data:hover {
  background: #ef4444;
  color: white;
  border-color: #ef4444;
}
/* ================= MÀN HÌNH ĐĂNG NHẬP GOOGLE ================= */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-body);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}
.login-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}
.login-box {
  background: white;
  padding: 40px;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  text-align: center;
  max-width: 400px;
  width: 90%;
  transform: translateY(0);
  transition: 0.4s;
}
.login-overlay.hidden .login-box {
  transform: translateY(-20px);
}
.login-logo {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary-color);
  margin-bottom: 15px;
}
.login-desc {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 30px;
  font-weight: 600;
  line-height: 1.5;
}
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 14px;
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 14px;
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
  cursor: pointer;
  transition: 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}
.btn-google:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
}
.btn-google:active {
  transform: translateY(0);
}
.btn-google img {
  width: 24px;
  height: 24px;
}
/* --- MENU AVATAR --- */
.avatar-menu {
  position: absolute;
  top: 50px;
  right: 0;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  min-width: 150px;
  overflow: hidden;
  z-index: 100;
  transition: 0.2s;
}
.avatar-menu.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
}
.avatar-menu-item {
  padding: 12px 20px;
  font-weight: 700;
  color: var(--text-main);
  transition: 0.2s;
  cursor: pointer;
}
.avatar-menu-item:hover {
  background: var(--bg-body);
}
.text-danger {
  color: var(--danger-color);
}

/* --- NÚT TẮT & NÚT KHÁCH TẠI LOGIN --- */
.login-box {
  position: relative;
}
.login-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 800;
  transition: 0.2s;
}
.login-close:hover {
  color: var(--danger-color);
}
.btn-guest {
  width: 100%;
  padding: 12px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 15px;
  margin-top: 10px;
  cursor: pointer;
  transition: 0.2s;
  text-decoration: underline;
}
.btn-guest:hover {
  color: var(--text-main);
}
/* Phép thuật nhuộm ngọn lửa thành màu xanh lam chuẩn Duolingo */
.blue-flame {
  filter: hue-rotate(190deg) brightness(1.1)
    drop-shadow(0 4px 6px rgba(59, 130, 246, 0.3)) !important;
  display: inline-block;
}

/* ================= BẢNG STREAK (DROPDOWN STYLE Ở GÓC PHẢI) ================= */
.streak-dropdown {
  position: absolute;
  top: 55px; /* Nằm ngay dưới thanh công cụ */
  right: 60px; /* Neo gần nút ngọn lửa */
  background: white;
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
  z-index: 1000;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.streak-dropdown.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-15px);
}
.streak-dropdown-inner {
  width: 340px;
  padding: 25px;
  text-align: center;
}

.streak-icon-large {
  font-size: 50px;
  margin-bottom: 0px;
  filter: drop-shadow(0 4px 6px rgba(59, 130, 246, 0.2));
}
.streak-number {
  font-size: 45px;
  font-weight: 900;
  color: #1e293b;
  line-height: 1;
  margin-bottom: 2px;
}
.streak-label {
  font-size: 13px;
  font-weight: 800;
  color: #64748b;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.streak-title {
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 15px;
}

.streak-calendar {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 2px solid #f1f5f9;
  padding-bottom: 20px;
}
.sc-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.sc-name {
  font-size: 11px;
  font-weight: 800;
  color: #94a3b8;
}
.sc-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: white;
  font-weight: 900;
  transition: 0.3s;
}
.sc-circle.done {
  background: #1e293b;
  box-shadow: 0 4px 10px rgba(30, 41, 59, 0.3);
}

.btn-checked-in {
  width: 100%;
  padding: 14px;
  background: #86efac;
  color: #14532d;
  border: none;
  border-radius: 16px;
  font-size: 15px;
  font-weight: 900;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 0 #4ade80;
}

.streak-freeze-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 2px solid #bae6fd;
  border-radius: 14px;
  padding: 10px 15px;
  background: #f0f9ff;
}
.freeze-info {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}
.freeze-icon {
  font-size: 22px;
  filter: drop-shadow(0 2px 4px rgba(56, 189, 248, 0.3));
}
.freeze-title {
  font-size: 12px;
  color: #64748b;
  font-weight: 700;
  margin-bottom: 2px;
}
.freeze-count {
  font-size: 15px;
  font-weight: 900;
  color: #0f172a;
}
.btn-buy-freeze {
  background: #1e293b;
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 900;
  cursor: pointer;
  transition: 0.2s;
  font-size: 13px;
}
.btn-buy-freeze:hover {
  transform: scale(1.05);
}

/* ================= POP-UP MUA BÙA ĐÓNG BĂNG (CỬA HÀNG) ================= */
.freeze-modal-box {
  max-width: 420px;
  padding: 30px;
}
.freeze-modal-title {
  font-size: 20px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.freeze-modal-desc {
  font-size: 14px;
  color: #64748b;
  font-weight: 600;
  margin-bottom: 25px;
  line-height: 1.5;
}

.freeze-stats-row {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
}
.freeze-stat-box {
  flex: 1;
  border: 2px solid #e2e8f0;
  border-radius: 14px;
  padding: 12px 15px;
  background: #f8fafc;
}
.stat-label {
  font-size: 12px;
  font-weight: 800;
  color: #94a3b8;
  margin-bottom: 5px;
  text-transform: uppercase;
}
.stat-value {
  font-size: 16px;
  font-weight: 900;
  color: #0f172a;
}

.freeze-calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid #f1f5f9;
}
.freeze-calc-row.total-row {
  border-bottom: none;
  border-top: 2px dashed #e2e8f0;
  margin-top: 10px;
  padding-bottom: 5px;
}
.calc-label {
  font-size: 15px;
  font-weight: 700;
  color: #475569;
}
.calc-value {
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
}
.total-val {
  color: #0284c7;
  font-size: 18px;
  font-weight: 900;
}

.qty-selector {
  display: flex;
  align-items: center;
  gap: 15px;
}
.qty-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: #e2e8f0;
  color: #475569;
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}
.qty-btn:hover {
  background: #cbd5e1;
}
.qty-btn:active {
  transform: scale(0.9);
}
#buy-qty {
  font-size: 16px;
  font-weight: 900;
  color: #0f172a;
  width: 20px;
  text-align: center;
}

.freeze-error {
  color: #ef4444;
  font-size: 13px;
  font-weight: 700;
  margin-top: 10px;
  text-align: right;
}

.freeze-action-row {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 25px;
}
.btn-cancel {
  background: #f1f5f9;
  color: #64748b;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
.btn-cancel:hover {
  background: #e2e8f0;
}
.btn-confirm {
  background: #3b82f6;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}
.btn-confirm:hover {
  background: #2563eb;
  transform: translateY(-2px);
}
.btn-confirm:disabled {
  background: #94a3b8;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}
/* ================= HỒ SƠ CÁ NHÂN (XỊN XÒ) ================= */
.pro-container {
  max-width: 600px;
  margin: 0 auto;
  padding-bottom: 50px;
}
.pro-header-area {
  background: #facc15;
  padding: 40px 20px 80px 20px;
  border-radius: 24px;
  text-align: center;
  position: relative;
  margin-bottom: 60px;
}
.pro-title {
  font-size: 24px;
  font-weight: 900;
  color: #422006;
}

.pro-avatar-box {
  position: absolute;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: #fff;
  padding: 5px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}
.pro-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #4ade80;
}
.pro-badge {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: #4ade80;
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 900;
  font-size: 14px;
  white-space: nowrap;
  border: 2px solid white;
}

.pro-name {
  text-align: center;
  font-size: 26px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 5px;
}
.pro-email {
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  color: #64748b;
  margin-bottom: 25px;
}

.pro-quick-stats {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
}
.pro-stat-box {
  flex: 1;
  text-align: center;
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 16px;
  padding: 15px;
}
.pro-stat-val {
  font-size: 22px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 5px;
}
.pro-stat-label {
  font-size: 12px;
  font-weight: 800;
  color: #64748b;
  text-transform: uppercase;
}

.achieve-card {
  border: 2px solid #fbd38d;
  border-radius: 20px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 15px;
  background: white;
  transition: 0.2s;
}
.achieve-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(251, 191, 36, 0.15);
}
.achieve-icon {
  width: 75px;
  height: 75px;
  object-fit: contain;
}
.achieve-info {
  flex: 1;
}
.achieve-title {
  font-size: 18px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 5px;
}
.achieve-count {
  font-size: 14px;
  font-weight: 800;
  color: #f59e0b;
  margin-bottom: 10px;
}
.achieve-bar-bg {
  width: 100%;
  height: 10px;
  background: #e2e8f0;
  border-radius: 10px;
  overflow: hidden;
}
.achieve-bar-fill {
  height: 100%;
  background: #f59e0b;
  border-radius: 10px;
  transition: width 0.5s ease;
}
/* ================= THANH ĐIỀU HƯỚNG COURSE DETAIL ================= */
.course-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  flex-wrap: wrap;
  gap: 15px;
}
.view-tabs {
  display: flex;
  background: #e2e8f0;
  padding: 4px;
  border-radius: 12px;
  gap: 5px;
}
body.dark-theme .view-tabs {
  background: #1e293b;
}
.v-tab {
  padding: 10px 20px;
  font-weight: 800;
  font-size: 14px;
  border-radius: 10px;
  cursor: pointer;
  color: #64748b;
  transition: 0.2s;
}
.v-tab.active {
  background: white;
  color: #0f172a;
  box-shadow: var(--shadow-sm);
}
body.dark-theme .v-tab {
  color: #94a3b8;
}
body.dark-theme .v-tab.active {
  background: #334155;
  color: #38bdf8;
}

.size-select-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 14px;
  color: #475569;
}
body.dark-theme .size-select-wrap {
  color: #94a3b8;
}
.size-select {
  padding: 8px 15px;
  border-radius: 10px;
  border: 2px solid #cbd5e1;
  font-weight: 800;
  outline: none;
  background: white;
  cursor: pointer;
}
body.dark-theme .size-select {
  background: #1e293b;
  border-color: #334155;
  color: #38bdf8;
}

/* Grid Chủ đề (Giữ nguyên từ bản trước) */
.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding-bottom: 50px;
}
.deck-card {
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  transition: 0.3s;
  border: 2px solid transparent;
  cursor: pointer;
}
.deck-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}
.deck-top {
  padding: 25px 20px;
  position: relative;
  color: white;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 20px 20px;
  border-bottom: 4px solid rgba(0, 0, 0, 0.1);
}
.deck-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1px;
  backdrop-filter: blur(4px);
}
.deck-title {
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 5px;
  line-height: 1.3;
}
.deck-sub {
  font-size: 14px;
  font-weight: 700;
  opacity: 0.9;
}
.deck-bottom {
  background: #1e293b;
  padding: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.deck-stats {
  font-size: 13px;
  font-weight: 700;
  color: #94a3b8;
  display: flex;
  justify-content: center;
  gap: 15px;
}
.btn-start-deck {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 900;
  color: white;
  cursor: pointer;
  transition: 0.2s;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.btn-start-deck:hover {
  filter: brightness(1.1);
  transform: scale(1.02);
}

.theme-blue .deck-top {
  background-color: #0284c7;
}
.theme-blue .btn-start-deck {
  background: linear-gradient(135deg, #0284c7, #3b82f6);
}
.theme-yellow .deck-top {
  background-color: #d97706;
}
.theme-yellow .btn-start-deck {
  background: linear-gradient(135deg, #d97706, #f59e0b);
}
.theme-green .deck-top {
  background-color: #16a34a;
}
.theme-green .btn-start-deck {
  background: linear-gradient(135deg, #16a34a, #22c55e);
}
.theme-purple .deck-top {
  background-color: #7c3aed;
}
.theme-purple .btn-start-deck {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
}
.theme-red .deck-top {
  background-color: #dc2626;
}
.theme-red .btn-start-deck {
  background: linear-gradient(135deg, #dc2626, #ef4444);
}
body.dark-theme .deck-bottom {
  background: #0f172a;
  border: 2px solid #1e293b;
  border-top: none;
}
/* ================= CSS CHO DASHBOARD ÔN TẬP SRS (BẢN TỐI ƯU) ================= */
.srs-levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 30px;
}
.srs-level-card {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 16px;
  padding: 25px 15px 15px 15px;
  text-align: center;
  cursor: pointer;
  transition: 0.2s;
  position: relative;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}
body.dark-theme .srs-level-card {
  background: var(--bg-surface);
  border-color: #1e293b;
}
.srs-level-card:hover {
  transform: translateY(-3px);
  border-color: #cbd5e1;
}
body.dark-theme .srs-level-card:hover {
  border-color: #334155;
}

.srs-level-card.active {
  border-color: #3b82f6;
  box-shadow: 0 10px 20px rgba(59, 130, 246, 0.15);
}
body.dark-theme .srs-level-card.active {
  border-color: #38bdf8;
  background: #0f172a;
}

.srs-lvl-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: #f1f5f9;
  color: #64748b;
  font-size: 12px;
  font-weight: 900;
  padding: 4px 12px;
  border-bottom-left-radius: 12px;
  border-top-right-radius: 14px;
}
.srs-level-card.active .srs-lvl-badge {
  background: #3b82f6;
  color: white;
}
body.dark-theme .srs-level-card.active .srs-lvl-badge {
  background: #38bdf8;
  color: #0f172a;
}

.srs-lvl-icon {
  font-size: 40px;
  margin-bottom: 10px;
  filter: grayscale(100%);
  opacity: 0.5;
  transition: 0.3s;
}
.srs-level-card.active .srs-lvl-icon {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

.srs-lvl-title {
  font-size: 16px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 5px;
}
.srs-lvl-desc {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.srs-lvl-count {
  font-size: 13px;
  font-weight: 800;
  color: #64748b;
  background: #f1f5f9;
  padding: 6px 15px;
  border-radius: 20px;
  width: 100%;
  transition: 0.2s;
}
body.dark-theme .srs-lvl-count {
  background: #1e293b;
  color: #94a3b8;
}
.srs-level-card.active .srs-lvl-count {
  background: #eff6ff;
  color: #3b82f6;
}
body.dark-theme .srs-level-card.active .srs-lvl-count {
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
}

/* Danh sách từ vựng bên dưới */
.srs-word-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 30px;
}
.srs-word-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
  padding: 15px 20px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
body.dark-theme .srs-word-item {
  background: var(--bg-surface);
  border-color: #1e293b;
}
.srs-w-en {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 2px;
}
.srs-w-vi {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.srs-w-time {
  font-size: 14px;
  font-weight: 800;
  color: #ef4444;
  background: #fef2f2;
  padding: 6px 12px;
  border-radius: 8px;
}
body.dark-theme .srs-w-time {
  background: rgba(239, 68, 68, 0.1);
}
.srs-w-time.ready {
  color: #22c55e;
  background: #f0fdf4;
}
body.dark-theme .srs-w-time.ready {
  background: rgba(34, 197, 94, 0.1);
}

/* Nút Bắt đầu ôn riêng biệt */
.btn-start-level-review {
  display: block;
  width: 100%;
  max-width: 350px;
  margin: 0 auto 30px auto;
  padding: 15px;
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  transition: 0.2s;
  box-shadow: 0 6px 0 #16a34a;
}
.btn-start-level-review:hover {
  transform: translateY(2px);
  box-shadow: 0 4px 0 #16a34a;
}
.btn-start-level-review:active {
  transform: translateY(6px);
  box-shadow: none;
}

/* ================= ĐẤU TRƯỜNG REVIEW QUIZ (Make-up) ================= */
.review-wrapper {
  background: var(--bg-surface);
  width: 100%;
  max-width: 700px;
  height: 80vh;
  margin: 20px auto;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.review-header {
  display: flex;
  justify-content: space-between;
  padding: 20px 30px;
  border-bottom: 2px solid var(--border-color);
  font-weight: 800;
}
.rq-progress-text {
  color: var(--secondary-color);
  font-size: 18px;
}

.rq-content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px;
  text-align: center;
  transition: background-color 0.3s ease;
}

/* Hiệu ứng Phạt/Thưởng */
.flash-green {
  background-color: rgba(34, 197, 94, 0.1) !important;
}
.flash-red {
  background-color: rgba(239, 68, 68, 0.1) !important;
  animation: shake 0.4s;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  75% {
    transform: translateX(10px);
  }
}

/* --- DẠNG MCQ --- */
.rq-question-title {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 40px;
  color: var(--text-main);
}
.rq-mcq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  width: 100%;
  max-width: 500px;
}
.rq-mcq-btn {
  background: white;
  border: 2px solid var(--border-color);
  padding: 20px;
  border-radius: 16px;
  font-size: 20px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
body.dark-theme .rq-mcq-btn {
  background: #1e293b;
  color: #f8fafc;
}
.rq-mcq-btn:hover:not(:disabled) {
  border-color: var(--secondary-color);
  background: rgba(59, 130, 246, 0.05);
}

/* Trạng thái đáp án */
.rq-mcq-btn.correct {
  background: var(--success-color);
  color: white;
  border-color: var(--success-color);
}
.rq-mcq-btn.wrong {
  background: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}
.rq-mcq-btn.show-correct {
  background: #06b6d4;
  color: white;
  border-color: #06b6d4;
  animation: pulse-cyan 1s infinite;
}

@keyframes pulse-cyan {
  0% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
  }
  100% {
    box-shadow: 0 0 0 15px rgba(6, 182, 212, 0);
  }
}

/* --- DẠNG CLOZE & SPELLING --- */
.rq-example-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.5;
}
.rq-cloze-blank {
  color: #94a3b8;
  font-family: monospace;
  letter-spacing: 2px;
}
.rq-word-type {
  color: #64748b;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 30px;
  text-transform: uppercase;
}

.rq-text-input,
.rq-hidden-input {
  width: 100%;
  max-width: 400px;
  padding: 15px 20px;
  font-size: 24px;
  text-align: center;
  font-weight: 800;
  border: 3px solid var(--border-color);
  border-radius: 16px;
  outline: none;
  transition: 0.2s;
}
body.dark-theme .rq-text-input {
  background: #1e293b;
  color: #f8fafc;
  border-color: #334155;
}
.rq-text-input:focus {
  border-color: var(--secondary-color);
}
.rq-text-input.correct-input {
  border-color: var(--success-color);
  color: var(--success-color);
}

.rq-big-audio {
  font-size: 60px;
  background: none;
  border: none;
  margin-bottom: 30px;
  transition: 0.2s;
  cursor: pointer;
}
.rq-big-audio:active {
  transform: scale(0.9);
}

.rq-spell-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}
.rq-spell-slots {
  display: flex;
  gap: 10px;
  pointer-events: none;
}
.rq-spell-slot {
  font-size: 40px;
  font-weight: 900;
  font-family: monospace;
  color: var(--border-color);
  border-bottom: 4px solid var(--border-color);
  min-width: 35px;
  text-align: center;
}
.rq-spell-slot.filled {
  color: var(--text-main);
  border-color: var(--secondary-color);
}
.rq-spell-slot.lifeline-filled {
  color: #94a3b8;
  border-color: #cbd5e1;
} /* Phao cứu sinh màu xám mờ */
.rq-hidden-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: text;
  z-index: 10;
}

/* --- HIỆU ỨNG CHUNKING (GÓI 5 TỪ) --- */
.chunk-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.9);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
}
.chunk-overlay.show {
  opacity: 1;
  visibility: visible;
}
.chunk-msg {
  color: white;
  font-size: 28px;
  font-weight: 900;
  text-align: center;
  padding: 0 40px;
  animation: popUp 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popUp {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
.rq-mcq-btn {
  background: white;
  border: 2px solid var(--border-color);
  padding: 20px;
  border-radius: 16px;
  font-size: 20px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
body.dark-theme .rq-mcq-btn {
  background: #1e293b;
  color: #f8fafc;
}
.rq-mcq-btn:hover:not(:disabled) {
  border-color: var(--secondary-color);
  background: rgba(59, 130, 246, 0.05);
}
.btn-translate {
  background: #f1f5f9;
  color: #64748b;
  border: none;
  padding: 10px 20px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  margin-top: 10px;
  transition: 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}
.btn-translate:hover {
  background: #e2e8f0;
  color: #0f172a;
  transform: translateY(-2px);
}
.translated-text {
  display: none;
  color: #3b82f6;
  font-weight: 800;
  margin-top: 15px;
  font-size: 18px;
  font-style: italic;
  background: rgba(59, 130, 246, 0.05);
  padding: 15px;
  border-radius: 12px;
  border-left: 4px solid #3b82f6;
}
.translated-text.show {
  display: block;
  animation: fade-in 0.3s ease;
}
@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ================= TEST GATEWAY & SETUP ================= */
.test-gateway-card {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 24px;
  padding: 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: 0.3s;
}
.test-gateway-card:hover {
  transform: translateY(-5px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}
body.dark-theme .test-gateway-card {
  background: var(--bg-surface);
  border-color: #1e293b;
}

.tg-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 35px;
  margin-bottom: 20px;
  font-weight: 900;
}
.tg-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 10px;
}
.tg-desc {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 25px;
  line-height: 1.5;
  flex: 1;
}
.tg-btn {
  width: 100%;
  color: white;
  border: none;
  padding: 14px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 900;
  transition: 0.2s;
}
.tg-btn:active {
  transform: translateY(4px);
  box-shadow: none !important;
}

/* Bảng Setup Đề Thi */
.ts-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}
.ts-label {
  font-size: 15px;
  font-weight: 800;
  color: #334155;
}
.ts-select,
.ts-input {
  padding: 10px 15px;
  border-radius: 10px;
  border: 2px solid #cbd5e1;
  font-weight: 800;
  color: #0f172a;
  outline: none;
  background: white;
  font-family: inherit;
  font-size: 15px;
}
.ts-input {
  width: 80px;
  text-align: center;
}
.ts-select:focus,
.ts-input:focus {
  border-color: #3b82f6;
}

/* ================= GIAO DIỆN PHÒNG THI ================= */
.hidden {
  display: none !important;
}

.ex-card {
  background: white;
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 20px;
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-sm);
}
.ex-badge {
  display: inline-block;
  background: #0f172a;
  color: white;
  font-weight: 900;
  padding: 5px 12px;
  border-radius: 8px;
  margin-bottom: 15px;
  font-size: 14px;
}
.ex-qtext {
  font-size: 18px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Grid Trắc nghiệm */
.ex-opt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.ex-opt {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  cursor: pointer;
  background: white;
  font-weight: 600;
  font-size: 16px;
  transition: 0.2s;
}
.ex-opt:hover {
  border-color: #cbd5e1;
  background: #f8fafc;
}
.ex-opt.selected {
  border-color: #3b82f6;
  background: #eff6ff;
  color: #1d4ed8;
}
.ex-opt.correct {
  border-color: #22c55e !important;
  background: #dcfce7 !important;
  color: #166534 !important;
}
.ex-opt.wrong {
  border-color: #ef4444 !important;
  background: #fee2e2 !important;
  color: #991b1b !important;
}

.ex-char {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #64748b;
}
.ex-opt.selected .ex-char {
  background: #3b82f6;
  color: white;
}

/* Input Tự luận */
.ex-input {
  width: 100%;
  padding: 15px;
  border: 2px solid #cbd5e1;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 700;
  outline: none;
  transition: 0.2s;
}
.ex-input:focus {
  border-color: #3b82f6;
}
.ex-input.correct {
  border-color: #22c55e;
  background: #dcfce7;
  color: #166534;
}
.ex-input.wrong {
  border-color: #ef4444;
  background: #fee2e2;
  color: #991b1b;
}

/* Đúng/Sai */
.ex-tf-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px dashed #e2e8f0;
  gap: 15px;
}
.ex-tf-text {
  flex: 1;
  font-weight: 600;
  font-size: 16px;
  color: #334155;
}
.ex-tf-btns {
  display: flex;
  gap: 8px;
}
.btn-tf {
  padding: 8px 15px;
  border-radius: 8px;
  border: 2px solid #cbd5e1;
  background: white;
  font-weight: 800;
  cursor: pointer;
  color: #64748b;
}
.btn-tf.sel-true {
  background: #10b981;
  color: white;
  border-color: #10b981;
}
.btn-tf.sel-false {
  background: #ef4444;
  color: white;
  border-color: #ef4444;
}

/* Grid Ô Số */
.ex-grid-item {
  aspect-ratio: 1;
  border: 2px solid #cbd5e1;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #64748b;
  cursor: pointer;
  background: white;
  transition: 0.2s;
}
.ex-grid-item.done {
  border-color: #3b82f6;
  background: #eff6ff;
  color: #2563eb;
}
.ex-grid-item.correct {
  border-color: #22c55e !important;
  background: #22c55e !important;
  color: white !important;
}
.ex-grid-item.wrong {
  border-color: #ef4444 !important;
  background: #ef4444 !important;
  color: white !important;
}

/* Giải thích */
.ex-explain {
  margin-top: 15px;
  padding: 15px;
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: 10px;
  color: #92400e;
  font-weight: 600;
  font-size: 14px;
  display: none;
}
.ex-explain.show {
  display: block;
}
/* ================= NÚT GẠT (TOGGLE SWITCH) CHUẨN QUIZLET ================= */
.switch {
  position: relative;
  display: inline-block;
  width: 46px !important;
  height: 26px !important;
  flex-shrink: 0;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.switch .slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: 0.3s;
  border-radius: 34px;
}
.switch .slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.switch input:checked + .slider {
  background-color: #3b82f6;
}
.switch input:checked + .slider:before {
  transform: translateX(20px);
}

/* Item Chọn Nguồn */
.ts-source-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  border-radius: 12px;
  background: var(--bg-body);
  border: 2px solid var(--border-color);
  cursor: pointer;
  transition: 0.2s;
}
.ts-source-item:hover {
  border-color: #94a3b8;
}
.ts-source-item.active {
  border-color: #3b82f6;
  background: rgba(59, 130, 246, 0.05);
}
/* ================= MODAL CHỌN TỪ 2 CỘT (WORD SELECTOR) ================= */
.ws-sidebar {
  width: 250px;
  background: #f8fafc;
  border-right: 1px solid #e2e8f0;
  overflow-y: auto;
  padding: 20px 10px;
  flex-shrink: 0;
}
body.dark-theme .ws-sidebar {
  background: #0f172a;
  border-color: #1e293b;
}

.ws-group-title {
  font-size: 11px;
  font-weight: 900;
  color: #94a3b8;
  margin: 15px 0 5px 10px;
  letter-spacing: 1px;
}
.ws-tab {
  padding: 10px 15px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  transition: 0.2s;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
body.dark-theme .ws-tab {
  color: #cbd5e1;
}
.ws-tab:hover {
  background: #e2e8f0;
}
body.dark-theme .ws-tab:hover {
  background: #1e293b;
}
.ws-tab.active {
  background: #3b82f6;
  color: white;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

.ws-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #fff;
  overflow: hidden;
}
body.dark-theme .ws-main {
  background: #020617;
}

.ws-tools {
  padding: 20px;
  border-bottom: 1px solid #e2e8f0;
  background: #fff;
  z-index: 5;
}
body.dark-theme .ws-tools {
  background: #020617;
  border-color: #1e293b;
}

.ws-search {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #cbd5e1;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  outline: none;
  transition: 0.2s;
  background: #f8fafc;
}
body.dark-theme .ws-search {
  background: #0f172a;
  border-color: #334155;
  color: #fff;
}
.ws-search:focus {
  border-color: #3b82f6;
  background: #fff;
}

.ws-btn-tool {
  background: white;
  border: 1px solid #cbd5e1;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  color: #475569;
  cursor: pointer;
  transition: 0.2s;
}
body.dark-theme .ws-btn-tool {
  background: #0f172a;
  border-color: #334155;
  color: #cbd5e1;
}
.ws-btn-tool:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.ws-word-list {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
/* Style từng dòng Checkbox */
.ws-word-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 12px 15px;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  cursor: pointer;
  transition: 0.1s;
}
body.dark-theme .ws-word-item {
  background: #0f172a;
  border-color: #1e293b;
}
.ws-word-item:hover {
  border-color: #94a3b8;
}
.ws-word-item.checked {
  border-color: #3b82f6;
  background: rgba(59, 130, 246, 0.05);
}

/* Mobile Hóa */
@media (max-width: 768px) {
  #testWordSelectorModal .modal-box {
    flex-direction: column !important;
  }
  .ws-sidebar {
    width: 100%;
    height: 180px;
    border-right: none;
    border-bottom: 2px solid #e2e8f0;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 10px;
    align-content: flex-start;
  }
  .ws-group-title {
    width: 100%;
    margin: 5px 0;
  }
  .ws-tab {
    padding: 6px 10px;
    font-size: 12px;
    flex: 0 0 auto;
  }
}
/* ================= VÁ LỖI DARK MODE CHO BẢNG SETUP ĐỀ ================= */
body.dark-theme #test-setup-modal .login-box {
  background: #0f172a !important;
  border: 1px solid #1e293b;
}
body.dark-theme #test-setup-modal > div > div:first-child {
  background: #1e293b !important;
  border-color: #334155 !important;
}
body.dark-theme #test-setup-modal > div > div:last-child {
  background: #1e293b !important;
  border-color: #334155 !important;
}
body.dark-theme #test-setup-modal .ts-label {
  color: #e2e8f0 !important;
}
body.dark-theme #test-setup-modal .ts-select,
body.dark-theme #test-setup-modal .ts-input {
  background: #020617 !important;
  border-color: #334155 !important;
  color: #fff !important;
}
body.dark-theme #test-setup-modal hr {
  border-color: #334155 !important;
}
body.dark-theme .login-close {
  color: #94a3b8 !important;
}

/* ================= FIX MÀU NÚT ĐÚNG / SAI KHI NỘP BÀI ================= */
.btn-tf.correct-ans {
  background: #10b981 !important;
  color: white !important;
  border-color: #10b981 !important;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}
.btn-tf.wrong-ans {
  background: #ef4444 !important;
  color: white !important;
  border-color: #ef4444 !important;
}

/* ================= GIAO DIỆN MINI GAME GHÉP THẺ ================= */
body.dark-theme #matching-game-wrapper {
  background: #020617 !important;
}
body.dark-theme #matching-game-wrapper > div:first-child {
  background: #0f172a !important;
  border-color: #1e293b !important;
}
body.dark-theme #match-victory {
  background: rgba(15, 23, 42, 0.95) !important;
}
body.dark-theme #match-time-result {
  color: #cbd5e1 !important;
}

.match-card {
  background: white;
  border: 2px solid #cbd5e1;
  border-radius: 16px;
  padding: 20px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: 0.2s;
  user-select: none;
  min-height: 90px;
}
body.dark-theme .match-card {
  background: #1e293b;
  border-color: #334155;
  color: #e2e8f0;
}

.match-card:hover {
  transform: translateY(-3px);
  border-color: #3b82f6;
  box-shadow: 0 8px 15px rgba(59, 130, 246, 0.1);
}
.match-card.selected {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1d4ed8;
  transform: scale(0.95);
}
body.dark-theme .match-card.selected {
  background: #172554;
  border-color: #3b82f6;
  color: #60a5fa;
}

.match-card.matched {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.8);
}
.match-card.wrong-match {
  background: #fee2e2;
  border-color: #ef4444;
  color: #991b1b;
  animation: shakeMatch 0.4s;
}
body.dark-theme .match-card.wrong-match {
  background: #450a0a;
  border-color: #ef4444;
  color: #fca5a5;
}

@keyframes shakeMatch {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px) rotate(-2deg);
  }
  75% {
    transform: translateX(5px) rotate(2deg);
  }
}

@media (max-width: 600px) {
  #match-board {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 8px !important;
  }
  .match-card {
    font-size: 14px;
    min-height: 70px;
    padding: 10px 5px;
  }
}
/* ======================================================
   VÁ LỖI DARK MODE TỔNG LỰC CHO BẢNG SETUP LẪN PHÒNG THI
   ====================================================== */

/* 1. Bảng Setup Đề (Ảnh 2) */
body.dark-theme #test-setup-modal .login-box {
  background: #0f172a !important;
  border-color: #1e293b !important;
}
body.dark-theme #test-setup-modal .login-box > div:first-child {
  background: #1e293b !important;
  border-color: #334155 !important;
}
body.dark-theme
  #test-setup-modal
  .login-box
  > div:first-child
  div[style*="color: #0f172a"] {
  color: #f8fafc !important;
}
body.dark-theme #test-setup-modal .login-box > div:last-child {
  background: #1e293b !important;
  border-color: #334155 !important;
}

/* 2. Bảng Chọn Nguồn Từ Vựng (Ảnh 3) */
body.dark-theme #testWordSelectorModal .modal-header {
  background: #1e293b !important;
  border-bottom: 1px solid #334155 !important;
}
body.dark-theme #testWordSelectorModal .modal-title {
  color: #f8fafc !important;
}
body.dark-theme #testWordSelectorModal .ws-sidebar {
  background: #0f172a !important;
  border-color: #1e293b !important;
}
body.dark-theme #testWordSelectorModal .ws-main {
  background: #020617 !important;
}
body.dark-theme #testWordSelectorModal .ws-tools {
  background: #0f172a !important;
  border-color: #1e293b !important;
}

/* 3. Phòng Thi Giao Diện Chính (Exam Wrapper) */
body.dark-theme #internal-exam-wrapper {
  background: #020617 !important;
}
body.dark-theme #internal-exam-wrapper > div:first-child {
  background: #0f172a !important;
  border-bottom: 1px solid #1e293b !important;
}
body.dark-theme
  #internal-exam-wrapper
  > div:first-child
  div[style*="color: var(--text-main)"] {
  color: #38bdf8 !important;
}

/* Sidebar Lưới Câu Hỏi */
body.dark-theme .exam-sidebar {
  background: #0f172a !important;
  border-left: 1px solid #1e293b !important;
}
body.dark-theme .exam-sidebar > div:first-child {
  border-bottom: 1px solid #1e293b !important;
  color: #94a3b8 !important;
}
body.dark-theme .exam-sidebar > div:last-child {
  border-top: 1px solid #1e293b !important;
}

/* Thẻ Câu hỏi & Đáp án */
body.dark-theme .ex-card {
  background: #1e293b !important;
  border: 1px solid #334155 !important;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3) !important;
}
body.dark-theme .ex-badge {
  background: #38bdf8 !important;
  color: #0f172a !important;
}
body.dark-theme .ex-qtext {
  color: #f8fafc !important;
}
body.dark-theme .ex-opt {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #e2e8f0 !important;
}
body.dark-theme .ex-opt:hover {
  background: #162032 !important;
  border-color: #475569 !important;
}
body.dark-theme .ex-char {
  background: #1e293b !important;
  color: #94a3b8 !important;
}
body.dark-theme .ex-input {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}
body.dark-theme .ex-tf-row {
  border-bottom-color: #334155 !important;
}
body.dark-theme .ex-tf-text {
  color: #e2e8f0 !important;
}
body.dark-theme .btn-tf {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #94a3b8 !important;
}

/* Trạng thái đáp án khi đang làm & nộp bài trong Dark Mode */
body.dark-theme .ex-opt.selected {
  background: #172554 !important;
  border-color: #3b82f6 !important;
  color: #60a5fa !important;
}
body.dark-theme .ex-opt.selected .ex-char {
  background: #3b82f6 !important;
  color: #fff !important;
}
body.dark-theme .ex-opt.correct {
  background: #14532d !important;
  border-color: #22c55e !important;
  color: #4ade80 !important;
}
body.dark-theme .ex-opt.wrong {
  background: #450a0a !important;
  border-color: #ef4444 !important;
  color: #fca5a5 !important;
}

body.dark-theme .ex-input.correct {
  background: #14532d !important;
  border-color: #22c55e !important;
  color: #4ade80 !important;
}
body.dark-theme .ex-input.wrong {
  background: #450a0a !important;
  border-color: #ef4444 !important;
  color: #fca5a5 !important;
}

body.dark-theme .btn-tf.sel-true {
  background: #059669 !important;
  border-color: #10b981 !important;
  color: #fff !important;
}
body.dark-theme .btn-tf.sel-false {
  background: #b91c1c !important;
  border-color: #ef4444 !important;
  color: #fff !important;
}
body.dark-theme .btn-tf.correct-ans {
  background: #10b981 !important;
  color: #fff !important;
  border-color: #10b981 !important;
}
body.dark-theme .btn-tf.wrong-ans {
  background: #ef4444 !important;
  color: #fff !important;
  border-color: #ef4444 !important;
}

body.dark-theme .ex-explain {
  background: #422006 !important;
  border-color: #b45309 !important;
  color: #fde68a !important;
}

/* Lưới Sidebar */
body.dark-theme .ex-grid-item {
  background: #0f172a !important;
  border-color: #334155 !important;
  color: #94a3b8 !important;
}
body.dark-theme .ex-grid-item.done {
  background: #172554 !important;
  border-color: #3b82f6 !important;
  color: #60a5fa !important;
}
body.dark-theme .ex-grid-item.correct {
  background: #16a34a !important;
  border-color: #22c55e !important;
  color: #fff !important;
}
body.dark-theme .ex-grid-item.wrong {
  background: #dc2626 !important;
  border-color: #ef4444 !important;
  color: #fff !important;
}

/* 4. Màn hình Mini Game Dark Mode */
body.dark-theme #matching-game-wrapper {
  background: #020617 !important;
}
body.dark-theme #matching-game-wrapper > div:first-child {
  background: #0f172a !important;
  border-bottom: 1px solid #1e293b !important;
}
body.dark-theme #match-victory {
  background: rgba(15, 23, 42, 0.95) !important;
}
/* ================= HIỆU ỨNG THÒ THỤT MENU BÊN TRÁI (DESKTOP) ================= */
.sidebar {
  transition: width 0.3s ease, left 0.3s ease;
  overflow-x: hidden;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
}

/* Nút Thu gọn dưới đáy Sidebar (Chỉ hiện PC) */
.sidebar-collapse-btn {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 20px;
  margin-top: auto; /* Đẩy xuống dưới cùng */
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s;
}
.sidebar-collapse-btn:hover {
  background: var(--bg-body);
  color: var(--text-main);
}
.collapse-icon {
  font-size: 24px;
  line-height: 1;
}

/* Trạng thái thu gọn trên Máy tính */
.sidebar.collapsed {
  width: 80px;
}
.sidebar.collapsed .logo-text,
.sidebar.collapsed .menu-badge, /* FIX LỖI: Ẩn cục thông báo đỏ */
.sidebar.collapsed .collapse-text {
  display: none !important;
}
.sidebar.collapsed .logo-icon-img {
  margin: 0 auto;
}
/* FIX LỖI: Căn giữa icon hoàn hảo, không bị thụt vô trong */
.sidebar.collapsed .menu-item {
  font-size: 0 !important;
  padding: 15px 0 !important;
  justify-content: center !important;
}
.sidebar.collapsed .menu-item .menu-icon {
  margin: 0 !important;
  font-size: 24px !important;
}
.sidebar.collapsed .sidebar-collapse-btn {
  justify-content: center;
  padding: 15px 0;
}

/* Ẩn nút Hamburger trên Máy tính */
.mobile-hamburger {
  display: none !important;
}
/* Lớp phủ sau lưng menu mobile: mặc định tắt */
#mobile-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  cursor: pointer;
}

#mobile-overlay.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ================= GIAO DIỆN ĐIỆN THOẠI (RESPONSIVE) ================= */
@media (max-width: 768px) {
  /* Hiện nút Hamburger trên điện thoại */
  .mobile-hamburger {
    display: flex !important;
  }

  /* Giấu nút Thu gọn đi vì điện thoại dùng overlay rồi */
  .sidebar-collapse-btn {
    display: none !important;
  }

  .header {
    padding: 0 15px;
  }
  .tool-chip {
    padding: 5px 8px;
    font-size: 13px;
  }
  .user-avatar-wrap {
    width: 35px;
    height: 35px;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    height: 100vh;
    z-index: 9999;
    width: 260px;
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.5);
  }
  .sidebar.mobile-open {
    left: 0;
  }
  /* Nếu sidebar đang bị thu gọn trên PC rồi chuyển sang mobile, vẫn ép nó mở đủ rộng */
  .sidebar.collapsed {
    width: 260px;
  }

  .sidebar.collapsed .logo-text,
  .sidebar.collapsed .collapse-text {
    display: block !important;
  }

  .sidebar.collapsed .menu-badge {
    display: inline-flex !important;
  }

  .sidebar.collapsed .menu-item {
    font-size: inherit !important;
    padding: 15px 20px !important;
    justify-content: flex-start !important;
  }

  .sidebar.collapsed .menu-item .menu-icon {
    margin-right: 0 !important;
    font-size: 22px !important;
  }

  .view-section {
    padding: 20px 15px;
  }
  .main-wrapper {
    width: 100vw;
  }

  .pro-card,
  .course-card-hm,
  .deck-card,
  .test-gateway-card {
    width: 100% !important;
    margin-bottom: 15px;
  }

  div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  .srs-levels-grid {
    grid-template-columns: 1fr 1fr;
  }
  .pro-quick-stats {
    flex-direction: column;
  }

  .welcome-title {
    font-size: 22px;
  }
  .vi-title {
    font-size: 26px !important;
  }
  .flip-card {
    height: 40vh;
  }
  .mochi-fc-word {
    font-size: 28px;
  }
  .modal-box {
    padding: 20px !important;
    width: 95% !important;
  }
  .ts-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .ts-select,
  .ts-input {
    width: 100% !important;
  }
}
/* ================= CSS SỔ TỪ VỰNG ================= */
.vocab-title {
  font-size: 28px;
  font-weight: 900;
  color: var(--text-main);
  margin: 0;
}
.vocab-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.vocab-action-btns {
  display: flex;
  gap: 10px;
}
.ai-btn {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  box-shadow: 0 5px 0 #9333ea;
}
.json-btn {
  background: #3b82f6;
  box-shadow: 0 5px 0 #2563eb;
}
.m-tab-count {
  font-size: 14px;
  margin-top: 5px;
}

/* Khu vực Search */
.mochi-search-bar {
  display: flex;
  gap: 15px;
  margin-bottom: 30px;
}
.search-input-wrap {
  display: flex;
  flex: 1;
  gap: 10px;
}
.mochi-search-input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 30px;
  background: var(--bg-body);
  border: 2px solid var(--border-color);
  color: var(--text-main);
  font-weight: 700;
  outline: none;
}
.mochi-btn-search {
  padding: 0 25px;
  border-radius: 30px;
  background: #22c55e;
  color: white;
  font-weight: 800;
  border: none;
  cursor: pointer;
}
.vocab-filter-select {
  padding: 0 15px;
  border-radius: 30px;
  border: 2px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-weight: 700;
  outline: none;
  cursor: pointer;
  height: 50px;
}

/* Cấu trúc Mochi Item (Card) */
.mochi-item {
  display: flex;
  flex-direction: column;
  padding: 15px;
  border-radius: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  margin-bottom: 10px;
  transition: 0.2s;
  box-shadow: var(--shadow-sm);
}
.m-item-main {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 15px;
}
.m-img-box {
  width: 45px;
  height: 45px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.m-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.m-thumb-empty {
  width: 100%;
  height: 100%;
  background: var(--bg-body);
}
.m-text-box {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.m-word-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.m-ipa {
  font-size: 13px;
  color: var(--secondary-color);
  font-family: monospace;
  font-weight: 600;
}
.m-meaning-row {
  display: flex;
  gap: 6px;
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 600;
  line-height: 1.3;
}
.m-action-box {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.btn-edit-word {
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  opacity: 0.5;
  transition: 0.2s;
}
.btn-edit-word:hover {
  opacity: 1;
}

.m-item-footer {
  display: flex;
  gap: 10px;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px dashed var(--border-color);
  display: none;
}
.m-tag-sync {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
  padding: 4px 10px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 12px;
}
.m-tag-star {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  padding: 4px 10px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 12px;
}

/* Hiển thị Footer trên Desktop */
@media (min-width: 769px) {
  .mochi-item {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .m-item-main {
    width: auto;
    flex: 1;
  }
  .m-item-footer {
    display: flex;
    border: none;
    margin: 0;
    padding: 0;
  }
}

/* Nút Kiểm tra chung cho cả PC và Mobile */
.btn-check-mobile {
  display: block;
  width: 100%;
  max-width: 250px;
  margin: 25px auto 0 auto;
  padding: 14px 20px;
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 800;
  box-shadow: 0 4px 0 #16a34a;
  transition: 0.1s;
  cursor: pointer;
}
.btn-check-mobile:active {
  transform: translateY(4px);
  box-shadow: none;
}

@media (max-width: 768px) {
  #viewInputVi p,
  #viewInputEn p,
  #viewListenWrite p {
    display: none;
  }
  .app-container {
    height: 100dvh;
  }
  .learn-wrapper {
    height: 100%;
    border-radius: 0;
    margin-top: 0;
  }
}

/* Định dạng Bảng kết quả (Bottom Drawer) */
.drawer-right {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  margin-top: 15px;
}

.btn-drawer-next {
  flex: none;
  width: 200px;
  background: white;
  border: none;
  border-radius: 30px;
  padding: 14px 15px;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
  transition: 0.1s;
  margin: 0 auto;
}
/* ================= ÉP MÀN HÌNH HỌC & ĐẤU TRƯỜNG FULLSCREEN CHUẨN APP ================= */
#view-learning.active,
#view-review-quiz.active {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100dvh !important;
  z-index: 9999 !important;
  background-color: var(--bg-body) !important;
  padding: 0 !important;
}

@media (max-width: 768px) {
  #view-learning.active .learn-wrapper,
  #view-review-quiz.active .learn-wrapper {
    height: 100dvh !important;
    max-width: 100vw !important;
    margin: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }
  .learn-content-area {
    padding: 20px 20px 42vh 20px !important;
  }
  .flip-card {
    height: clamp(380px, 60vh, 500px) !important;
    flex-shrink: 0 !important;
  }

  /* Thu nhỏ ô gõ chữ trên điện thoại để các từ dài không rớt thành 2 hàng */
  .slot {
    width: 25px !important;
    height: 35px !important;
    font-size: 20px !important;
    border-bottom-width: 3px !important;
  }
  .rq-cloze-blank {
    letter-spacing: 0px !important;
    font-size: 18px !important;
  }
  .btn-translate {
    padding: 8px 16px !important;
    font-size: 14px !important;
    border-radius: 20px !important;
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
  }
  body.dark-theme .btn-translate {
    background: #1e293b !important;
    color: #94a3b8 !important;
    border-color: #334155 !important;
  }
}
/* ================= CĂN GIỮA BẢNG STREAK TRÊN ĐIỆN THOẠI ================= */
@media (max-width: 768px) {
  .streak-dropdown {
    position: fixed !important;
    top: 70px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    right: auto !important;
    width: 90% !important;
    max-width: 360px !important;
  }
  .streak-dropdown.hidden {
    transform: translate(-50%, -15px) !important;
  }
  .streak-dropdown-inner {
    width: 100% !important;
    padding: 20px !important;
  }
}
/* ======================================================
   MOBILE REBUILD CHO DASHBOARD ÔN TẬP SRS
   Desktop vẫn giữ cũ, mobile được thiết kế lại
   ====================================================== */

.srs-intro-text {
  color: var(--text-muted);
  font-weight: 600;
  text-align: center;
  margin-bottom: 25px;
}

.srs-mobile-hero {
  display: none;
}

.srs-lvl-due {
  margin-top: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  background: #fee2e2;
  color: #dc2626;
  font-size: 12px;
  font-weight: 900;
}

.srs-lvl-due.muted {
  background: #dcfce7;
  color: #16a34a;
}

.srs-word-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.srs-score-pill {
  font-size: 13px;
  font-weight: 800;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
  padding: 6px 12px;
  border-radius: 8px;
}

.srs-empty-message {
  text-align: center;
  color: var(--success-color);
  font-weight: 800;
  margin-bottom: 30px;
  font-size: 16px;
}

.srs-list-title {
  margin-bottom: 20px;
  font-weight: 900;
  font-size: 18px;
  color: var(--text-main);
  border-bottom: 2px dashed var(--border-color);
  padding-bottom: 10px;
}

.srs-empty-list {
  text-align: center;
  color: var(--text-muted);
  font-weight: 700;
  padding: 20px;
}

/* ================= MOBILE ONLY ================= */
@media (max-width: 768px) {
  #view-review.view-section {
    padding: 16px 12px 110px !important;
  }

  #srs-dashboard-container {
    max-width: 100%;
    overflow: hidden;
  }

  .srs-desktop-banner {
    display: none !important;
  }

  .srs-intro-text {
    text-align: left !important;
    font-size: 13px;
    line-height: 1.5;
    margin: 0 0 14px 0 !important;
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--text-muted);
  }

  .srs-mobile-hero {
    display: block;
    margin-bottom: 16px;
    padding: 18px;
    border-radius: 26px;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    color: white;
    box-shadow: 0 8px 0 #1d4ed8, 0 18px 35px rgba(37, 99, 235, 0.25);
  }

  .srs-mobile-kicker {
    font-size: 13px;
    font-weight: 900;
    opacity: 0.9;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
  }

  .srs-mobile-main-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
  }

  .srs-mobile-number {
    font-size: 52px;
    font-weight: 1000;
    line-height: 0.95;
  }

  .srs-mobile-sub {
    font-size: 15px;
    font-weight: 800;
    opacity: 0.95;
    margin-top: 5px;
  }

  .srs-mobile-ring {
    width: 86px;
    height: 86px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    border: 3px solid rgba(255, 255, 255, 0.35);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .srs-mobile-ring span {
    font-size: 24px;
    font-weight: 1000;
    line-height: 1;
  }

  .srs-mobile-ring small {
    font-size: 11px;
    font-weight: 900;
    opacity: 0.9;
    margin-top: 4px;
  }

  .srs-mobile-tip {
    margin-top: 14px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 13px;
    font-weight: 800;
    line-height: 1.35;
  }

  .srs-mobile-mini-stats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
  }

  .srs-mobile-mini-stats span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    font-size: 12px;
    font-weight: 800;
  }

  .srs-levels-grid {
    display: flex !important;
    grid-template-columns: none !important;
    gap: 10px !important;
    overflow-x: auto;
    margin: 8px -12px 18px -12px !important;
    padding: 4px 12px 14px 12px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .srs-levels-grid::-webkit-scrollbar {
    display: none;
  }

  .srs-level-card {
    flex: 0 0 152px;
    min-height: 168px;
    padding: 14px !important;
    border-radius: 22px !important;
    text-align: left !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    scroll-snap-align: start;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  }

  body.dark-theme .srs-level-card {
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  }

  .srs-level-card.active {
    background: linear-gradient(135deg, #2563eb, #38bdf8) !important;
    border-color: transparent !important;
    color: white !important;
    box-shadow: 0 8px 0 #1d4ed8, 0 18px 35px rgba(37, 99, 235, 0.25) !important;
    transform: none !important;
  }

  body.dark-theme .srs-level-card.active {
    background: linear-gradient(135deg, #0369a1, #38bdf8) !important;
  }

  .srs-lvl-badge {
    position: static !important;
    margin-left: auto;
    margin-bottom: 8px;
    border-radius: 999px !important;
    padding: 5px 9px !important;
    font-size: 11px !important;
  }

  .srs-level-card.active .srs-lvl-badge {
    background: rgba(255, 255, 255, 0.22) !important;
    color: white !important;
  }

  .srs-lvl-icon {
    font-size: 31px !important;
    margin: -2px 0 8px 0 !important;
  }

  .srs-lvl-title {
    font-size: 15px !important;
    line-height: 1.2;
    margin-bottom: 5px !important;
  }

  .srs-lvl-desc {
    font-size: 12px !important;
    line-height: 1.25;
    margin-bottom: 10px !important;
  }

  .srs-lvl-count {
    width: auto !important;
    padding: 6px 10px !important;
    font-size: 12px !important;
    margin-top: auto;
  }

  .srs-lvl-due {
    margin-top: 8px;
    font-size: 11px;
    padding: 5px 9px;
  }

  .srs-level-card.active .srs-lvl-title,
  .srs-level-card.active .srs-lvl-desc,
  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due {
    color: white !important;
  }

  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due {
    background: rgba(255, 255, 255, 0.18) !important;
  }

  .btn-start-level-review {
    position: static !important;
    bottom: auto !important;
    z-index: auto !important;
    width: calc(100% - 4px) !important;
    max-width: none !important;
    margin: 16px 2px 22px 2px !important;
    padding: 16px 14px !important;
    border-radius: 20px !important;
    font-size: 15px !important;
    box-shadow: 0 8px 0 #15803d, 0 18px 30px rgba(22, 163, 74, 0.25) !important;
  }

  .srs-empty-message {
    margin: 0 0 18px 0 !important;
    padding: 14px;
    border-radius: 18px;
    background: rgba(34, 197, 94, 0.1);
    font-size: 14px;
    line-height: 1.4;
  }

  .srs-list-title {
    margin: 6px 0 12px 0 !important;
    padding-bottom: 8px !important;
    font-size: 16px !important;
  }

  .srs-word-list {
    gap: 12px !important;
    padding-bottom: 40px !important;
  }

  .srs-word-item {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 12px;
    padding: 15px !important;
    border-radius: 20px !important;
    background: var(--bg-surface) !important;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06) !important;
  }

  body.dark-theme .srs-word-item {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  .srs-w-en {
    font-size: 18px !important;
    line-height: 1.25;
  }

  .srs-w-vi {
    font-size: 14px !important;
    line-height: 1.35;
  }

  .srs-word-meta {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
  }

  .srs-score-pill,
  .srs-w-time {
    font-size: 12px !important;
    border-radius: 999px !important;
    padding: 7px 10px !important;
  }

  .srs-empty-list {
    padding: 28px 18px !important;
    border-radius: 20px;
    background: rgba(148, 163, 184, 0.08);
    font-size: 14px;
  }
}
/* ======================================================
   SRS DESKTOP REBUILD: DÙNG GIAO DIỆN MỚI, RỘNG RÃI HƠN
   ====================================================== */

@media (min-width: 769px) {
  .srs-desktop-banner {
    display: none !important;
  }

  #srs-dashboard-container {
    max-width: 1180px;
    margin: 0 auto;
    overflow: visible !important;
  }

  .srs-intro-text {
    max-width: 760px;
    margin: 0 auto 24px auto !important;
    padding: 14px 20px;
    border-radius: 18px;
    background: rgba(59, 130, 246, 0.08);
    text-align: center;
    font-size: 15px;
    line-height: 1.6;
  }

  .srs-mobile-hero {
    display: block !important;
    max-width: 100%;
    margin: 0 0 30px 0;
    padding: 30px 34px;
    border-radius: 32px;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    color: white;
    box-shadow: 0 10px 0 #1d4ed8, 0 24px 45px rgba(37, 99, 235, 0.25);
  }

  .srs-mobile-kicker {
    font-size: 15px;
    font-weight: 900;
    opacity: 0.92;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .srs-mobile-main-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
  }

  .srs-mobile-number {
    font-size: 72px;
    font-weight: 1000;
    line-height: 0.95;
  }

  .srs-mobile-sub {
    font-size: 20px;
    font-weight: 900;
    margin-top: 8px;
  }

  .srs-mobile-ring {
    width: 120px;
    height: 120px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    border: 4px solid rgba(255, 255, 255, 0.35);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .srs-mobile-ring span {
    font-size: 34px;
    font-weight: 1000;
    line-height: 1;
  }

  .srs-mobile-ring small {
    font-size: 13px;
    font-weight: 900;
    opacity: 0.9;
    margin-top: 6px;
  }

  .srs-mobile-tip {
    margin-top: 22px;
    padding: 14px 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 15px;
    font-weight: 800;
    line-height: 1.45;
  }

  .srs-mobile-mini-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
  }

  .srs-mobile-mini-stats span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    font-size: 14px;
    font-weight: 800;
  }

  .srs-levels-grid {
    display: grid !important;
    grid-template-columns: repeat(5, minmax(150px, 1fr)) !important;
    gap: 18px !important;
    overflow: visible !important;
    margin: 18px 0 28px 0 !important;
    padding: 0 !important;
  }

  .srs-level-card {
    min-height: 230px;
    padding: 22px !important;
    border-radius: 28px !important;
    text-align: left !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
    transition: 0.2s ease;
    cursor: pointer;
  }

  .srs-level-card:hover {
    transform: translateY(-4px);
  }

  .srs-level-card.active {
    background: linear-gradient(135deg, #2563eb, #38bdf8) !important;
    border-color: transparent !important;
    color: white !important;
    box-shadow: 0 8px 0 #1d4ed8, 0 18px 35px rgba(37, 99, 235, 0.25) !important;
  }

  .srs-lvl-badge {
    position: static !important;
    margin-left: auto;
    margin-bottom: 12px;
    border-radius: 999px !important;
    padding: 6px 11px !important;
    font-size: 12px !important;
    font-weight: 900;
  }

  .srs-level-card.active .srs-lvl-badge {
    background: rgba(255, 255, 255, 0.22) !important;
    color: white !important;
  }

  .srs-lvl-icon {
    font-size: 38px !important;
    margin: 0 0 12px 0 !important;
  }

  .srs-lvl-title {
    font-size: 19px !important;
    line-height: 1.22;
    margin-bottom: 7px !important;
  }

  .srs-lvl-desc {
    font-size: 14px !important;
    line-height: 1.35;
    margin-bottom: 12px !important;
  }

  .srs-lvl-count {
    width: auto !important;
    margin-top: auto;
    padding: 8px 13px !important;
    font-size: 13px !important;
    border-radius: 999px !important;
  }

  .srs-lvl-due {
    margin-top: 10px;
    padding: 7px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 900;
  }

  .srs-level-card.active .srs-lvl-title,
  .srs-level-card.active .srs-lvl-desc,
  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due {
    color: white !important;
  }

  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due {
    background: rgba(255, 255, 255, 0.18) !important;
  }

  .btn-start-level-review {
    max-width: 520px !important;
    margin: 0 auto 30px auto !important;
    padding: 18px 24px !important;
    border-radius: 22px !important;
    font-size: 17px !important;
  }

  .srs-empty-message {
    max-width: 760px;
    margin: 0 auto 32px auto !important;
    padding: 18px 22px;
    border-radius: 22px;
    background: rgba(34, 197, 94, 0.1);
    font-size: 17px;
    line-height: 1.45;
  }

  .srs-list-title {
    margin: 6px 0 18px 0 !important;
    padding-bottom: 12px !important;
    font-size: 22px !important;
  }

  .srs-word-list {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px !important;
  }

  .srs-word-item {
    padding: 18px 20px !important;
    border-radius: 22px !important;
    background: var(--bg-surface) !important;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.06) !important;
  }

  .srs-w-en {
    font-size: 20px !important;
    line-height: 1.25;
  }

  .srs-w-vi {
    font-size: 15px !important;
    line-height: 1.35;
  }
}
/* ======================================================
   FIX CỨNG SRS MOBILE: KHÔNG LỆCH TRANG + CARD KHÔNG BỊ CẮT
   Dán cuối file để đè toàn bộ CSS cũ
   ====================================================== */

html,
body {
  max-width: 100%;
  overflow-x: hidden !important;
}

@media (max-width: 768px) {
  #view-review.view-section {
    width: 100% !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  #srs-dashboard-container {
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
    box-sizing: border-box !important;
  }

  .srs-mobile-hero,
  .srs-empty-message,
  .srs-list-title,
  .srs-word-list,
  .srs-empty-list {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .srs-levels-grid {
    display: flex !important;
    grid-template-columns: none !important;

    width: 100% !important;
    max-width: 100% !important;

    margin: 10px 0 20px 0 !important;
    padding: 10px 18px 22px 18px !important;

    gap: 14px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;

    box-sizing: border-box !important;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 18px;
    scroll-padding-right: 18px;
    -webkit-overflow-scrolling: touch;
  }

  .srs-levels-grid::-webkit-scrollbar {
    display: none;
  }

  .srs-level-card {
    flex: 0 0 156px !important;
    width: 156px !important;
    min-width: 156px !important;
    max-width: 156px !important;

    min-height: 168px !important;
    box-sizing: border-box !important;
    scroll-snap-align: center;

    margin: 0 !important;
  }

  .srs-level-card:first-child {
    margin-left: 0 !important;
  }

  .srs-level-card:last-child {
    margin-right: 0 !important;
  }

  .srs-level-card.active {
    transform: none !important;
  }
}
/* ======================================================
   VOCAB MOBILE REBUILD - CLEAN / PROFESSIONAL / APP-LIKE
   Dán cuối components.css để đè giao diện Sổ từ vựng cũ
   ====================================================== */

@media (max-width: 768px) {
  /* Chặn lỗi tràn ngang */
  html,
  body {
    max-width: 100%;
    overflow-x: hidden !important;
  }

  #view-vocab.view-section {
    width: 100% !important;
    max-width: 100vw !important;
    padding: 18px 16px 110px 16px !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  /* Tổng thể sổ từ */
  .vocab-header-bar {
    display: block !important;
    margin-bottom: 18px !important;
  }

  .vocab-title {
    font-size: 28px !important;
    line-height: 1.1 !important;
    font-weight: 950 !important;
    letter-spacing: -0.6px;
    color: var(--text-main) !important;
    margin-bottom: 8px !important;
  }

  .vocab-title::after {
    content: "Quản lý, tìm kiếm và chỉnh sửa từ vựng của bạn";
    display: block;
    margin-top: 8px;
    font-size: 13px;
    line-height: 1.45;
    font-weight: 700;
    letter-spacing: 0;
    color: var(--text-muted);
  }

  /* Cụm nút hành động: chuyên nghiệp hơn, không màu mè */
  .vocab-action-btns {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
    overflow: visible !important;
    padding: 0 !important;
    margin-top: 16px !important;
  }

  .btn-add-word {
    min-height: 46px !important;
    padding: 0 14px !important;
    border-radius: 14px !important;
    font-size: 14px !important;
    font-weight: 850 !important;
    white-space: nowrap !important;
    justify-content: center !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: none !important;
    transform: none !important;
  }

  .btn-add-word:active {
    transform: scale(0.98) !important;
    box-shadow: none !important;
  }

  .add-btn {
    order: 1;
    grid-column: 1 / -1;
    background: #111827 !important;
    color: white !important;
    border-color: #111827 !important;
  }

  .json-btn {
    order: 2;
    background: var(--bg-surface) !important;
    color: #2563eb !important;
    border-color: rgba(37, 99, 235, 0.22) !important;
  }

  .ai-btn {
    order: 3;
    background: var(--bg-surface) !important;
    color: #7c3aed !important;
    border-color: rgba(124, 58, 237, 0.22) !important;
  }

  body.dark-theme .add-btn {
    background: #f8fafc !important;
    color: #020617 !important;
    border-color: #f8fafc !important;
  }

  body.dark-theme .json-btn {
    background: #0f172a !important;
    color: #60a5fa !important;
    border-color: rgba(96, 165, 250, 0.25) !important;
  }

  body.dark-theme .ai-btn {
    background: #0f172a !important;
    color: #c084fc !important;
    border-color: rgba(192, 132, 252, 0.25) !important;
  }

  /* Wrapper bỏ kiểu khung to cũ */
  .vocab-mochi-wrapper {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    border-radius: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
  }

  /* Tabs cấp độ: đổi thành chip ngang giống app lớn */
  .mochi-tabs {
    display: flex !important;
    justify-content: flex-start !important;
    align-items: stretch !important;
    gap: 8px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    padding: 2px 0 12px 0 !important;
    margin: 0 0 10px 0 !important;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .mochi-tabs::-webkit-scrollbar {
    display: none !important;
  }

  .mochi-tab {
    flex: 0 0 auto !important;
    min-width: 84px !important;
    padding: 12px 12px !important;
    border-radius: 16px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-muted) !important;
    box-shadow: none !important;
    scroll-snap-align: start;
  }

  .mochi-tab.active {
    background: #111827 !important;
    color: white !important;
    border-color: #111827 !important;
  }

  body.dark-theme .mochi-tab {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme .mochi-tab.active {
    background: #f8fafc !important;
    color: #020617 !important;
    border-color: #f8fafc !important;
  }

  .mochi-tab > div:first-child {
    font-size: 13px !important;
    font-weight: 900 !important;
    line-height: 1.15 !important;
  }

  .mochi-stars {
    display: none !important;
  }

  .m-tab-count {
    margin-top: 7px !important;
    font-size: 15px !important;
    font-weight: 950 !important;
    color: inherit !important;
    opacity: 0.95;
  }

  /* Bỏ thanh màu cầu vồng */
  .mochi-progress-line {
    display: none !important;
  }

  /* Search/filter thành khối gọn */
  .mochi-search-bar {
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    margin: 6px 0 18px 0 !important;
    padding: 14px !important;
    border-radius: 22px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06) !important;
  }

  body.dark-theme .mochi-search-bar {
    background: #0f172a !important;
    border-color: #1e293b !important;
    box-shadow: none !important;
  }

  .search-input-wrap {
    width: 100% !important;
    display: grid !important;
    grid-template-columns: 1fr auto !important;
    gap: 10px !important;
  }

  .mochi-search-input {
    width: 100% !important;
    min-width: 0 !important;
    height: 48px !important;
    padding: 0 16px !important;
    border-radius: 14px !important;
    background: var(--bg-body) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    font-size: 14px !important;
    font-weight: 750 !important;
  }

  .mochi-search-input:focus {
    border-color: #2563eb !important;
    background: var(--bg-surface) !important;
  }

  .mochi-btn-search {
    height: 48px !important;
    padding: 0 18px !important;
    border-radius: 14px !important;
    background: #111827 !important;
    color: white !important;
    border: none !important;
    box-shadow: none !important;
    font-size: 14px !important;
    font-weight: 900 !important;
  }

  body.dark-theme .mochi-btn-search {
    background: #f8fafc !important;
    color: #020617 !important;
  }

  .vocab-filter-select {
    width: 100% !important;
    height: 48px !important;
    padding: 0 14px !important;
    border-radius: 14px !important;
    background: var(--bg-body) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    font-size: 14px !important;
    font-weight: 800 !important;
  }

  /* List từ */
  .mochi-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    margin-top: 0 !important;
    padding-bottom: 24px !important;
  }

  .mochi-item {
    position: relative !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 14px !important;
    border-radius: 22px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06) !important;
    margin: 0 !important;
  }

  body.dark-theme .mochi-item {
    background: #0f172a !important;
    border-color: #1e293b !important;
    box-shadow: none !important;
  }

  .mochi-item:hover {
    background: var(--bg-surface) !important;
  }

  .m-item-main {
    display: grid !important;
    grid-template-columns: 58px 1fr 32px !important;
    gap: 12px !important;
    align-items: center !important;
    width: 100% !important;
  }

  .m-icon-check {
    display: none !important;
  }

  .m-img-box {
    width: 58px !important;
    height: 58px !important;
    border-radius: 16px !important;
    overflow: hidden !important;
    border: 1px solid var(--border-color) !important;
    background: var(--bg-body) !important;
  }

  .m-thumb-img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
  }

  .m-thumb-empty {
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(
      180deg,
      rgba(148, 163, 184, 0.12),
      rgba(148, 163, 184, 0.04)
    ) !important;
  }

  .m-text-box {
    min-width: 0 !important;
    gap: 5px !important;
  }

  .m-word-row {
    display: block !important;
    min-width: 0 !important;
  }

  .m-word {
    display: block !important;
    max-width: 100% !important;
    font-size: 17px !important;
    line-height: 1.2 !important;
    font-weight: 950 !important;
    color: var(--text-main) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  .m-ipa {
    display: block !important;
    margin-top: 4px !important;
    font-size: 12px !important;
    line-height: 1.25 !important;
    color: var(--secondary-color) !important;
    font-weight: 800 !important;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
      monospace !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  .m-meaning-row {
    display: block !important;
    font-size: 14px !important;
    line-height: 1.35 !important;
    color: var(--text-muted) !important;
    font-weight: 750 !important;
  }

  .m-type {
    display: inline !important;
    width: auto !important;
    margin-right: 5px !important;
    font-size: 13px !important;
    font-weight: 900 !important;
    color: var(--text-main) !important;
  }

  .m-meaning {
    display: inline !important;
    font-size: 14px !important;
    color: var(--text-muted) !important;
  }

  .m-action-box {
    width: 32px !important;
    display: flex !important;
    align-items: flex-start !important;
    justify-content: flex-end !important;
  }

  .btn-edit-word {
    width: 32px !important;
    height: 32px !important;
    border-radius: 999px !important;
    background: var(--bg-body) !important;
    border: 1px solid var(--border-color) !important;
    font-size: 15px !important;
    opacity: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  .m-item-footer {
    display: flex !important;
    gap: 8px !important;
    padding-top: 12px !important;
    margin-top: 12px !important;
    border-top: 1px solid var(--border-color) !important;
  }

  .m-tag-sync,
  .m-tag-star {
    padding: 6px 10px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
    font-weight: 900 !important;
  }

  .m-tag-sync {
    background: rgba(37, 99, 235, 0.09) !important;
    color: #2563eb !important;
  }

  .m-tag-star {
    background: rgba(245, 158, 11, 0.11) !important;
    color: #d97706 !important;
  }

  .m-empty-state {
    padding: 28px 18px !important;
    border-radius: 20px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-muted) !important;
    font-size: 14px !important;
    font-weight: 800 !important;
  }
}
/* ======================================================
   VOCAB MOBILE PREMIUM FIX
   AI là CTA chính + tabs kiểu Netflix carousel
   Dán cuối components.css
   ====================================================== */

@media (max-width: 768px) {
  /* ===== ACTION BUTTONS: AI LÀ NÚT CHÍNH ===== */
  .vocab-action-btns {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
    margin-top: 16px !important;
  }

  .btn-add-word {
    min-height: 46px !important;
    border-radius: 16px !important;
    font-size: 14px !important;
    font-weight: 900 !important;
    white-space: nowrap !important;
    justify-content: center !important;
    box-shadow: none !important;
    transform: none !important;
  }

  /* AI Tạo Từ: nút ăn tiền, to nhất */
  .ai-btn {
    order: 1 !important;
    grid-column: 1 / -1 !important;
    min-height: 58px !important;
    border-radius: 20px !important;
    background: linear-gradient(135deg, #2563eb, #7c3aed) !important;
    color: #ffffff !important;
    border: none !important;
    box-shadow: 0 10px 0 rgba(37, 99, 235, 0.28),
      0 18px 34px rgba(37, 99, 235, 0.22) !important;
    position: relative !important;
    overflow: hidden !important;
    font-size: 16px !important;
  }

  .ai-btn::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: 19px;
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.22),
      rgba(255, 255, 255, 0)
    );
    pointer-events: none;
  }

  .ai-btn::after {
    content: "";
    display: block;
    margin-left: 6px;
    font-size: 11px;
    font-weight: 800;
    opacity: 0.86;
  }

  .ai-btn:active {
    transform: translateY(2px) scale(0.99) !important;
    box-shadow: 0 6px 0 rgba(37, 99, 235, 0.28),
      0 12px 24px rgba(37, 99, 235, 0.18) !important;
  }

  /* Nút phụ */
  .add-btn {
    order: 2 !important;
    grid-column: auto !important;
    background: var(--bg-surface) !important;
    color: #16a34a !important;
    border: 1px solid rgba(22, 163, 74, 0.24) !important;
  }

  .json-btn {
    order: 3 !important;
    grid-column: auto !important;
    background: var(--bg-surface) !important;
    color: #2563eb !important;
    border: 1px solid rgba(37, 99, 235, 0.24) !important;
  }

  body.dark-theme .add-btn {
    background: #0f172a !important;
    color: #4ade80 !important;
    border-color: rgba(74, 222, 128, 0.28) !important;
  }

  body.dark-theme .json-btn {
    background: #0f172a !important;
    color: #60a5fa !important;
    border-color: rgba(96, 165, 250, 0.28) !important;
  }

  /* Search button không dùng đen nữa */
  .mochi-btn-search {
    background: #2563eb !important;
    color: #ffffff !important;
    border: none !important;
  }

  body.dark-theme .mochi-btn-search {
    background: #38bdf8 !important;
    color: #020617 !important;
  }

  /* ===== TABS CẤP ĐỘ KIỂU NETFLIX CAROUSEL ===== */
  .mochi-tabs {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;

    overflow-x: auto !important;
    overflow-y: visible !important;

    padding: 12px 42vw 18px 42vw !important;
    margin: 2px -16px 12px -16px !important;

    scroll-snap-type: x mandatory !important;
    scroll-behavior: smooth !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .mochi-tabs::-webkit-scrollbar {
    display: none !important;
  }

  .mochi-tab {
    flex: 0 0 92px !important;
    min-width: 92px !important;
    height: 76px !important;

    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;

    border-radius: 22px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-muted) !important;

    scroll-snap-align: center !important;

    transform: scale(0.88) !important;
    opacity: 0.62 !important;
    transition: transform 0.22s ease, opacity 0.22s ease, background 0.22s ease,
      border-color 0.22s ease, box-shadow 0.22s ease !important;
  }

  .mochi-tab.active {
    flex-basis: 108px !important;
    min-width: 108px !important;
    height: 84px !important;

    background: linear-gradient(135deg, #2563eb, #38bdf8) !important;
    color: #ffffff !important;
    border-color: transparent !important;

    transform: scale(1) !important;
    opacity: 1 !important;

    box-shadow: 0 8px 0 #1d4ed8, 0 18px 30px rgba(37, 99, 235, 0.22) !important;
  }

  .mochi-tab.active + .mochi-tab,
  .mochi-tab:has(+ .mochi-tab.active) {
    transform: scale(0.93) !important;
    opacity: 0.82 !important;
  }

  .mochi-tab > div:first-child {
    font-size: 13px !important;
    font-weight: 950 !important;
    line-height: 1.15 !important;
  }

  .m-tab-count {
    margin-top: 7px !important;
    font-size: 17px !important;
    font-weight: 1000 !important;
    color: inherit !important;
  }

  .mochi-tab.active .m-tab-count {
    color: #ffffff !important;
  }

  body.dark-theme .mochi-tab {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme .mochi-tab.active {
    background: linear-gradient(135deg, #0ea5e9, #6366f1) !important;
    color: #ffffff !important;
    box-shadow: 0 8px 0 rgba(14, 165, 233, 0.45),
      0 18px 30px rgba(14, 165, 233, 0.18) !important;
  }

  /* Chặn layout tổng bị trượt ngang khi carousel kéo */
  #view-vocab.view-section {
    overflow-x: hidden !important;
  }

  .vocab-mochi-wrapper {
    overflow: visible !important;
  }
}
/* ======================================================
   CUSTOM DECK BUILDER - PROFESSIONAL REBUILD
   Mobile thân thiện, giữ nguyên tính năng
   ====================================================== */

#view-custom-deck.view-section {
  padding-bottom: 80px !important;
}

.cd-builder-page {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.cd-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-bottom: 18px;
  padding: 10px 16px;
  border: none;
  border-radius: 14px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--secondary-color);
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
}

.cd-shell {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.cd-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
  padding: 24px;
  box-sizing: border-box;
}

.cd-settings-panel {
  position: sticky;
  top: 18px;
}

.cd-words-panel {
  min-height: 620px;
  display: flex;
  flex-direction: column;
}

.cd-panel-head,
.cd-list-header {
  margin-bottom: 20px;
}

.cd-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.cd-eyebrow {
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.cd-title {
  font-size: 26px;
  line-height: 1.15;
  font-weight: 950;
  color: var(--text-main);
  margin: 0;
}

.cd-subtitle {
  margin: 8px 0 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 650;
}

.cd-field {
  margin-bottom: 16px;
}

.cd-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 850;
  color: var(--text-muted);
}

.cd-input,
.cd-search-input,
.cd-textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1.5px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-body);
  color: var(--text-main);
  padding: 13px 15px;
  outline: none;
  font-size: 14px;
  font-weight: 700;
}

.cd-input:focus,
.cd-search-input:focus,
.cd-textarea:focus {
  border-color: #60a5fa;
  background: var(--bg-surface);
}

.cd-textarea {
  min-height: 96px;
  resize: vertical;
  line-height: 1.55;
}

.cd-search-wrap {
  width: 260px;
  max-width: 100%;
  flex-shrink: 0;
}

.cd-upload-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.cd-upload-btn {
  border: 1.5px solid var(--border-color);
  background: var(--bg-body);
  color: var(--text-main);
  border-radius: 12px;
  padding: 11px 15px;
  font-size: 14px;
  font-weight: 850;
  cursor: pointer;
}

.cd-upload-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.cd-upload-status,
.cd-inline-status {
  font-size: 12px;
  font-weight: 850;
  color: var(--success-color);
}

.cd-thumb-preview {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.cd-divider {
  margin: 22px 0;
  border-top: 1px dashed var(--border-color);
}

.cd-source-box {
  margin-bottom: 22px;
}

.cd-source-head {
  margin-bottom: 14px;
}

.cd-source-title {
  margin: 0 0 6px 0;
  font-size: 16px;
  font-weight: 900;
  color: var(--text-main);
}

.cd-source-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
  font-weight: 650;
}

.cd-source-primary,
.cd-source-secondary,
.cd-source-ai,
.cd-save-btn {
  width: 100%;
  border: none;
  cursor: pointer;
  transition: 0.18s ease;
}

.cd-source-primary {
  margin-bottom: 10px;
  padding: 13px 16px;
  border-radius: 14px;
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
  border: 1.5px dashed rgba(37, 99, 235, 0.45);
  font-size: 14px;
  font-weight: 850;
}

.cd-source-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.cd-source-secondary {
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--bg-body);
  color: var(--text-main);
  border: 1.5px solid var(--border-color);
  font-size: 14px;
  font-weight: 800;
}

.cd-source-ai {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 15px 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  color: white;
  box-shadow: 0 8px 18px rgba(99, 102, 241, 0.26);
  font-size: 15px;
  font-weight: 950;
}

.cd-source-ai span {
  font-size: 11px;
  font-weight: 750;
  opacity: 0.92;
}

.cd-action-stack {
  margin-top: 6px;
}

.cd-save-btn {
  padding: 15px 18px;
  border-radius: 16px;
  background: var(--success-color);
  color: white;
  font-size: 16px;
  font-weight: 950;
  box-shadow: 0 6px 0 #16a34a;
}

.cd-delete-btn {
  margin-top: 10px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--danger-color);
  font-size: 14px;
  font-weight: 800;
  text-decoration: underline;
  cursor: pointer;
}

.cd-words-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 260px;
}

.cd-empty-state {
  flex: 1;
  min-height: 280px;
  border: 1px dashed var(--border-color);
  border-radius: 20px;
  background: var(--bg-body);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px 18px;
  text-align: center;
}

.cd-empty-icon {
  font-size: 34px;
  margin-bottom: 10px;
}

.cd-empty-title {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 6px;
}

.cd-empty-text {
  max-width: 360px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-muted);
  font-weight: 650;
}

.cd-word-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: var(--bg-body);
}

.cd-word-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  flex: 1;
}

.cd-word-index {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 900;
  flex-shrink: 0;
}

.cd-word-main {
  min-width: 0;
}

.cd-word-topline {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.cd-word-en {
  font-size: 16px;
  font-weight: 900;
  color: var(--text-main);
}

.cd-word-ipa {
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--secondary-color);
  font-weight: 800;
}

.cd-word-vi {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 700;
}

.cd-word-type {
  display: inline-flex;
  align-items: center;
  margin-top: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
  color: #2563eb;
  background: rgba(37, 99, 235, 0.1);
}

.cd-word-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.cd-icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  cursor: pointer;
  font-size: 15px;
}

.cd-icon-btn-edit {
  color: #f59e0b;
}

.cd-icon-btn-delete {
  color: var(--danger-color);
}

.cd-modal-box {
  max-width: 560px;
  padding: 26px;
}

.cd-modal-large {
  max-width: 720px;
}

.cd-modal-xl {
  max-width: 860px;
  padding: 0;
  overflow: hidden;
}

.cd-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.cd-modal-title {
  font-size: 24px;
  font-weight: 950;
  color: var(--text-main);
}

.cd-modal-desc {
  margin: 0 0 16px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 650;
}

.cd-modal-textarea {
  min-height: 130px;
  margin-bottom: 18px;
}

.cd-accent-purple {
  color: #8b5cf6;
}

.cd-accent-blue {
  color: #0ea5e9;
}

.cd-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.cd-submit-purple,
.cd-submit-blue {
  width: 100%;
  border: none;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 900;
  padding: 14px;
  color: white;
  cursor: pointer;
}

.cd-submit-purple {
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
}

.cd-submit-blue {
  background: #3b82f6;
}

.cd-db-modal {
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.cd-db-head {
  padding: 22px 24px 14px 24px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border-color);
}

.cd-db-search {
  padding: 16px 24px;
}

.cd-db-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 24px 18px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cd-db-footer {
  padding: 18px 24px 22px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-body);
}

@media (max-width: 768px) {
  #view-custom-deck.view-section {
    padding: 14px 12px 110px 12px !important;
    overflow-x: hidden !important;
  }

  .cd-back-btn {
    margin-bottom: 14px;
    padding: 10px 14px;
    font-size: 14px;
  }

  .cd-shell {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cd-settings-panel {
    position: static;
    top: auto;
  }

  .cd-panel {
    padding: 18px 16px;
    border-radius: 20px;
  }

  .cd-title {
    font-size: 20px;
  }

  .cd-subtitle {
    font-size: 13px;
  }

  .cd-list-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .cd-search-wrap {
    width: 100%;
  }

  .cd-source-two,
  .cd-form-grid {
    grid-template-columns: 1fr;
  }

  .cd-source-ai {
    padding: 14px 16px;
    border-radius: 16px;
    font-size: 14px;
  }

  .cd-save-btn {
    font-size: 15px;
    padding: 14px 16px;
  }

  .cd-word-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .cd-word-left {
    width: 100%;
  }

  .cd-word-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .cd-modal-box {
    width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    padding: 18px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 20px;
  }

  .cd-modal-title {
    font-size: 20px;
  }

  .cd-db-head {
    padding: 18px 18px 12px 18px;
  }

  .cd-db-search {
    padding: 14px 18px;
  }

  .cd-db-list {
    padding: 0 18px 14px 18px;
  }

  .cd-db-footer {
    padding: 16px 18px 18px 18px;
  }
}
/* ======================================================
   CUSTOM DECK MOBILE UX FIX
   Bỏ mô tả, save top, modal full màn, dễ dùng hơn
   ====================================================== */

.cd-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.cd-save-top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border: none;
  border-radius: 14px;
  background: var(--success-color);
  color: white;
  font-size: 14px;
  font-weight: 950;
  cursor: pointer;
  box-shadow: 0 4px 0 #16a34a;
}

.cd-save-warning {
  margin: 0 0 18px 0;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(245, 158, 11, 0.11);
  color: #b45309;
  font-size: 13px;
  line-height: 1.45;
  font-weight: 750;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.cd-close-btn {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-body);
  color: var(--text-muted);
  font-size: 20px;
  font-weight: 900;
  cursor: pointer;
}

.cd-mobile-modal-bar {
  display: none;
}

@media (max-width: 768px) {
  #view-custom-deck.view-section {
    padding: 12px 10px 110px 10px !important;
    overflow-x: hidden !important;
  }

  .cd-builder-page {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
  }

  .cd-topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 8px 0 12px 0;
    background: var(--bg-body);
    margin-bottom: 10px;
  }

  .cd-back-btn {
    margin: 0 !important;
    padding: 10px 12px !important;
    font-size: 14px !important;
    border-radius: 14px !important;
  }

  .cd-save-top-btn {
    min-height: 42px;
    padding: 0 14px;
    border-radius: 14px;
    font-size: 13px;
    white-space: nowrap;
  }

  .cd-shell {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .cd-settings-panel {
    position: static !important;
    top: auto !important;
  }

  .cd-panel {
    padding: 17px 15px !important;
    border-radius: 22px !important;
  }

  .cd-panel-head {
    margin-bottom: 14px !important;
  }

  .cd-eyebrow {
    font-size: 11px !important;
  }

  .cd-title {
    font-size: 22px !important;
    letter-spacing: -0.35px;
  }

  .cd-subtitle {
    font-size: 13px !important;
    line-height: 1.5 !important;
  }

  .cd-save-warning {
    margin-bottom: 16px;
    font-size: 12.5px;
  }

  .cd-field {
    margin-bottom: 14px !important;
  }

  .cd-input,
  .cd-search-input,
  .cd-textarea {
    border-radius: 16px !important;
    padding: 13px 14px !important;
    font-size: 14px !important;
  }

  .cd-source-box {
    margin-bottom: 0 !important;
  }

  .cd-source-head {
    margin-bottom: 12px !important;
  }

  .cd-source-title {
    font-size: 17px !important;
  }

  .cd-source-note {
    font-size: 12.5px !important;
  }

  .cd-source-ai {
    order: 1;
    margin-bottom: 10px !important;
    padding: 16px 14px !important;
    border-radius: 18px !important;
    background: linear-gradient(135deg, #2563eb, #7c3aed) !important;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.22) !important;
  }

  .cd-source-primary {
    order: 2;
    margin-bottom: 10px !important;
    border-radius: 16px !important;
  }

  /* Gõ tay + Nhập JSON nằm 1 hàng chia đôi */
  .cd-source-two {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
    margin-bottom: 0 !important;
  }

  .cd-source-secondary {
    min-height: 44px !important;
    padding: 10px 8px !important;
    border-radius: 16px !important;
    font-size: 13.5px !important;
    white-space: nowrap;
  }

  .cd-delete-btn {
    margin-top: 14px !important;
  }

  .cd-list-header {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
    margin-bottom: 14px !important;
  }

  .cd-search-wrap {
    width: 100% !important;
  }

  .cd-words-panel {
    min-height: 360px !important;
  }

  .cd-empty-state {
    min-height: 220px !important;
    border-radius: 18px !important;
  }

  .cd-empty-icon {
    font-size: 30px !important;
  }

  .cd-empty-title {
    font-size: 17px !important;
  }

  .cd-empty-text {
    font-size: 13px !important;
  }

  /* Modal full màn hình trên điện thoại */
  .modal.show {
    align-items: stretch !important;
    justify-content: center !important;
    padding: 0 !important;
  }

  .modal-box.cd-fullscreen-mobile {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    padding: 18px 18px 96px 18px !important;
    overflow-y: auto !important;
    box-sizing: border-box !important;
  }

  .cd-mobile-modal-bar {
    display: block;
    width: 44px;
    height: 5px;
    border-radius: 999px;
    background: var(--border-color);
    margin: 0 auto 16px auto;
  }

  .cd-modal-head {
    position: sticky;
    top: -18px;
    z-index: 5;
    background: var(--bg-surface);
    padding: 12px 0 14px 0;
    margin-bottom: 16px !important;
    border-bottom: 1px solid var(--border-color);
  }

  .cd-modal-title {
    font-size: 22px !important;
    line-height: 1.15 !important;
  }

  .cd-modal-desc {
    font-size: 13px !important;
    line-height: 1.55 !important;
  }

  .cd-form-grid {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  .cd-modal-textarea {
    min-height: 160px !important;
  }

  .cd-sticky-modal-submit,
  #btnConfirmAiGenerate {
    position: sticky !important;
    bottom: 12px !important;
    z-index: 8 !important;
    min-height: 50px !important;
    border-radius: 16px !important;
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.22) !important;
  }

  .cd-db-modal {
    display: flex !important;
    flex-direction: column !important;
    padding: 0 !important;
  }

  .cd-db-head {
    position: sticky !important;
    top: 0 !important;
    padding: 18px 18px 14px 18px !important;
    background: var(--bg-surface) !important;
    z-index: 6 !important;
  }

  .cd-db-search {
    padding: 14px 18px !important;
    background: var(--bg-surface) !important;
    position: sticky !important;
    top: 82px !important;
    z-index: 5 !important;
  }

  .cd-db-list {
    flex: 1 !important;
    overflow-y: auto !important;
    padding: 0 18px 110px 18px !important;
  }

  .cd-db-footer {
    position: fixed !important;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 14px 18px 18px 18px !important;
    background: var(--bg-surface) !important;
    border-top: 1px solid var(--border-color) !important;
    z-index: 10;
  }

  .cd-db-footer .btn-submit {
    min-height: 50px !important;
    border-radius: 16px !important;
    font-size: 15px !important;
  }
}
/* ======================================================
   FINAL UX FIX: VOCAB CAROUSEL + SRS CARD STABILITY
   Fix carousel lướt ngu, darkmode tràn màn, SRS active card bị dài
   ====================================================== */

@media (max-width: 768px) {
  /* Chặn toàn trang bị trượt ngang */
  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden !important;
  }

  #view-vocab.view-section,
  #view-review.view-section {
    width: 100% !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  /* ================= SỔ TỪ VỰNG: CAROUSEL CẤP ĐỘ ================= */

  .vocab-mochi-wrapper {
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  .mochi-tabs {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;

    width: 100% !important;
    max-width: 100% !important;

    margin: 10px 0 18px 0 !important;
    padding: 18px calc(50% - 54px) 28px calc(50% - 54px) !important;

    overflow-x: auto !important;
    overflow-y: visible !important;

    scroll-snap-type: x mandatory !important;
    scroll-behavior: auto !important;
    -webkit-overflow-scrolling: touch !important;
    box-sizing: border-box !important;
  }

  .mochi-tabs::-webkit-scrollbar {
    display: none !important;
  }

  .mochi-tab {
    flex: 0 0 108px !important;
    width: 108px !important;
    min-width: 108px !important;
    max-width: 108px !important;
    height: 82px !important;

    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;

    border-radius: 22px !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-muted) !important;

    scroll-snap-align: center !important;

    transform: scale(0.86) !important;
    opacity: 0.58 !important;

    transition: transform 0.16s ease, opacity 0.16s ease, background 0.16s ease,
      border-color 0.16s ease, box-shadow 0.16s ease !important;

    box-sizing: border-box !important;
  }

  .mochi-tab.active {
    flex: 0 0 108px !important;
    width: 108px !important;
    min-width: 108px !important;
    max-width: 108px !important;
    height: 82px !important;

    background: linear-gradient(135deg, #2563eb, #38bdf8) !important;
    color: #ffffff !important;
    border-color: transparent !important;

    transform: scale(1) !important;
    opacity: 1 !important;

    box-shadow: 0 8px 0 #1d4ed8, 0 18px 30px rgba(37, 99, 235, 0.2) !important;
  }

  .mochi-tab.active + .mochi-tab,
  .mochi-tab:has(+ .mochi-tab.active) {
    transform: scale(0.92) !important;
    opacity: 0.78 !important;
  }

  .mochi-tab > div:first-child {
    font-size: 13px !important;
    font-weight: 950 !important;
    line-height: 1.15 !important;
  }

  .m-tab-count {
    margin-top: 7px !important;
    font-size: 17px !important;
    font-weight: 1000 !important;
    color: inherit !important;
  }

  body.dark-theme .mochi-tabs {
    background: transparent !important;
  }

  body.dark-theme .mochi-tab {
    background: #0f172a !important;
    border-color: #1e293b !important;
    color: #94a3b8 !important;
  }

  body.dark-theme .mochi-tab.active {
    background: linear-gradient(135deg, #0ea5e9, #6366f1) !important;
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.9) !important;
    box-shadow: 0 8px 0 rgba(14, 165, 233, 0.45),
      0 18px 30px rgba(14, 165, 233, 0.18) !important;
  }

  /* ================= SRS: CARD KHÔNG BỊ DÀI / TO BẤT THƯỜNG ================= */

  #srs-dashboard-container {
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
    box-sizing: border-box !important;
  }

  .srs-levels-grid {
    display: flex !important;
    grid-template-columns: none !important;

    width: 100% !important;
    max-width: 100% !important;

    margin: 10px 0 20px 0 !important;
    padding: 10px 18px 24px 18px !important;

    gap: 14px !important;
    overflow-x: auto !important;
    overflow-y: visible !important;

    box-sizing: border-box !important;
    scroll-snap-type: x mandatory !important;
    scroll-padding-left: 18px;
    scroll-padding-right: 18px;
    -webkit-overflow-scrolling: touch !important;
  }

  .srs-levels-grid::-webkit-scrollbar {
    display: none !important;
  }

  .srs-level-card {
    flex: 0 0 156px !important;
    width: 156px !important;
    min-width: 156px !important;
    max-width: 156px !important;

    height: 182px !important;
    min-height: 182px !important;
    max-height: 182px !important;

    padding: 14px !important;
    margin: 0 !important;
    border-radius: 22px !important;

    box-sizing: border-box !important;
    scroll-snap-align: center !important;

    transform: none !important;
  }

  .srs-level-card.active {
    flex: 0 0 156px !important;
    width: 156px !important;
    min-width: 156px !important;
    max-width: 156px !important;

    height: 182px !important;
    min-height: 182px !important;
    max-height: 182px !important;

    transform: none !important;
  }

  .srs-lvl-icon {
    font-size: 30px !important;
    margin: 0 0 8px 0 !important;
  }

  .srs-lvl-title {
    font-size: 15px !important;
    line-height: 1.18 !important;
    min-height: 36px !important;
  }

  .srs-lvl-desc {
    font-size: 12px !important;
    line-height: 1.25 !important;
  }

  .srs-lvl-count {
    margin-top: auto !important;
  }
}
/* ======================================================
   TOPIC WORD LIST MODAL - FULL / WIDE SCREEN
   Popup Xem từ trong topic rộng hơn, mobile full màn hình
   ====================================================== */

/* Desktop / tablet: modal rộng hơn, thoáng hơn */
#topicDetailModal.modal.show {
  align-items: center !important;
  justify-content: center !important;
  padding: 20px !important;
}

#topicDetailModal .modal-box {
  width: min(980px, calc(100vw - 40px)) !important;
  height: min(820px, calc(100vh - 40px)) !important;
  max-width: min(980px, calc(100vw - 40px)) !important;
  max-height: calc(100vh - 40px) !important;

  display: flex !important;
  flex-direction: column !important;

  padding: 0 !important;
  border-radius: 28px !important;
  overflow: hidden !important;
}

#topicDetailModal .modal-header {
  flex-shrink: 0 !important;
  padding: 24px 28px 16px 28px !important;
  border-bottom: 1px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
}

#topicDetailModal .modal-title {
  font-size: 28px !important;
  line-height: 1.15 !important;
  font-weight: 950 !important;
}

#topicDetailModal .modal-close {
  width: 42px !important;
  height: 42px !important;
  border-radius: 999px !important;
  background: var(--bg-body) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-muted) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

#topicDetailModal .modal-box > div:nth-child(2) {
  flex-shrink: 0 !important;
  padding: 18px 28px 8px 28px !important;
  font-size: 17px !important;
}

#modalWordList {
  flex: 1 !important;
  overflow-y: auto !important;
  padding: 0 28px 18px 28px !important;
  margin: 0 !important;
}

#topicDetailModal .modal-box > div:last-child {
  flex-shrink: 0 !important;
  padding: 18px 28px 24px 28px !important;
  border-top: 1px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
  border-radius: 0 !important;
}

#btnStartFromModal {
  min-height: 58px !important;
  border-radius: 18px !important;
  font-size: 18px !important;
}

/* Mobile: mở full màn hình thật */
@media (max-width: 768px) {
  #topicDetailModal.modal.show {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
  }

  #topicDetailModal .modal-box {
    width: 100vw !important;
    height: 100dvh !important;
    max-width: 100vw !important;
    max-height: 100dvh !important;

    margin: 0 !important;
    border-radius: 0 !important;
  }

  #topicDetailModal .modal-header {
    position: sticky !important;
    top: 0 !important;
    z-index: 5 !important;

    padding: 18px 18px 14px 18px !important;
    background: var(--bg-surface) !important;
  }

  #topicDetailModal .modal-title {
    font-size: 26px !important;
    max-width: calc(100vw - 92px) !important;
    white-space: normal !important;
  }

  #topicDetailModal .modal-box > div:nth-child(2) {
    padding: 16px 18px 8px 18px !important;
    font-size: 16px !important;
  }

  #modalWordList {
    padding: 0 18px 16px 18px !important;
  }

  #topicDetailModal .modal-box > div:last-child {
    padding: 14px 18px 18px 18px !important;
    background: var(--bg-surface) !important;
  }

  #btnStartFromModal {
    width: 100% !important;
    min-height: 56px !important;
    border-radius: 18px !important;
    font-size: 16px !important;
  }

  body.dark-theme #topicDetailModal .modal-header,
  body.dark-theme #topicDetailModal .modal-box > div:last-child {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme #topicDetailModal .modal-close {
    background: #020617 !important;
    border-color: #1e293b !important;
    color: #94a3b8 !important;
  }
}
/* ======================================================
   FINAL FIX 2: SRS MOBILE CARD ĐỦ THÔNG TIN + VOCAB AI DARKMODE SÁNG HƠN
   Dán cuối components.css
   ====================================================== */

@media (max-width: 768px) {
  /* ================= SRS MOBILE: CARD ĐỦ THÔNG TIN, KHÔNG QUÁ DÀI ================= */

  .srs-levels-grid {
    display: flex !important;
    grid-template-columns: none !important;

    width: 100% !important;
    max-width: 100% !important;

    margin: 10px 0 18px 0 !important;
    padding: 12px 18px 22px 18px !important;

    gap: 14px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;

    box-sizing: border-box !important;
    scroll-snap-type: x mandatory !important;
    scroll-padding-left: 18px !important;
    scroll-padding-right: 18px !important;
    -webkit-overflow-scrolling: touch !important;

    /* Ẩn thanh trượt trên mọi trình duyệt */
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
  }

  .srs-levels-grid::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
  }

  .srs-level-card,
  .srs-level-card.active {
    flex: 0 0 168px !important;
    width: 168px !important;
    min-width: 168px !important;
    max-width: 168px !important;

    height: 214px !important;
    min-height: 214px !important;
    max-height: 214px !important;

    padding: 13px !important;
    margin: 0 !important;
    border-radius: 24px !important;

    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;

    overflow: hidden !important;
    box-sizing: border-box !important;
    scroll-snap-align: center !important;

    transform: none !important;
  }

  .srs-level-card.active {
    background: linear-gradient(135deg, #2563eb, #38bdf8) !important;
    border-color: transparent !important;
    color: white !important;
    box-shadow: 0 7px 0 #1d4ed8, 0 16px 28px rgba(37, 99, 235, 0.22) !important;
  }

  .srs-lvl-badge {
    position: static !important;
    align-self: flex-end !important;
    margin: 0 0 7px 0 !important;
    padding: 5px 9px !important;
    border-radius: 999px !important;
    font-size: 11px !important;
    line-height: 1 !important;
    font-weight: 900 !important;
    flex-shrink: 0 !important;
  }

  .srs-lvl-icon {
    font-size: 28px !important;
    line-height: 1 !important;
    margin: 0 0 8px 0 !important;
    flex-shrink: 0 !important;
  }

  .srs-lvl-title {
    font-size: 15px !important;
    line-height: 1.18 !important;
    font-weight: 950 !important;
    margin: 0 0 5px 0 !important;

    min-height: 36px !important;
    max-height: 38px !important;

    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
  }

  .srs-lvl-desc {
    font-size: 12px !important;
    line-height: 1.25 !important;
    font-weight: 800 !important;
    margin: 0 0 9px 0 !important;

    min-height: 30px !important;
    max-height: 32px !important;

    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
  }

  .srs-lvl-count {
    margin-top: auto !important;
    padding: 6px 10px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
    line-height: 1 !important;
    font-weight: 900 !important;
    flex-shrink: 0 !important;
  }

  .srs-lvl-due {
    margin-top: 7px !important;
    padding: 6px 10px !important;
    border-radius: 999px !important;
    font-size: 11px !important;
    line-height: 1 !important;
    font-weight: 900 !important;
    flex-shrink: 0 !important;
  }

  .srs-level-card.active .srs-lvl-title,
  .srs-level-card.active .srs-lvl-desc,
  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due {
    color: white !important;
  }

  .srs-level-card.active .srs-lvl-count,
  .srs-level-card.active .srs-lvl-due,
  .srs-level-card.active .srs-lvl-badge {
    background: rgba(255, 255, 255, 0.18) !important;
  }

  body.dark-theme .srs-level-card {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme .srs-level-card.active {
    background: linear-gradient(135deg, #0284c7, #38bdf8) !important;
    border-color: rgba(125, 211, 252, 0.35) !important;
    box-shadow: 0 7px 0 rgba(14, 165, 233, 0.5),
      0 16px 28px rgba(14, 165, 233, 0.18) !important;
  }

  /* ================= SỔ TỪ VỰNG: NÚT AI DARKMODE KHÔNG BỊ DÌM ================= */

  body.dark-theme #view-vocab .ai-btn {
    background: linear-gradient(135deg, #2563eb, #7c3aed) !important;
    color: #ffffff !important;
    border: 1px solid rgba(147, 197, 253, 0.35) !important;
    box-shadow: 0 8px 0 rgba(37, 99, 235, 0.45),
      0 18px 34px rgba(124, 58, 237, 0.24) !important;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.18) !important;
  }

  body.dark-theme #view-vocab .ai-btn::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: 19px;
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.22),
      rgba(255, 255, 255, 0)
    ) !important;
    pointer-events: none;
  }

  body.dark-theme #view-vocab .ai-btn::after {
    color: rgba(255, 255, 255, 0.9) !important;
  }

  body.dark-theme #view-vocab .json-btn,
  body.dark-theme #view-vocab .add-btn {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme #view-vocab .json-btn {
    color: #60a5fa !important;
  }

  body.dark-theme #view-vocab .add-btn {
    color: #4ade80 !important;
  }
}
/* ======================================================
   SVG ICON SYSTEM
   Đồng bộ icon menu/header trên mọi thiết bị
   ====================================================== */

.svg-menu-icon {
  width: 24px !important;
  height: 24px !important;
  min-width: 24px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: currentColor !important;
}

.svg-menu-icon svg {
  width: 22px !important;
  height: 22px !important;
  display: block !important;
  color: currentColor !important;
}

.menu-item .svg-menu-icon svg {
  transition: transform 0.18s ease, color 0.18s ease;
}

.menu-item:hover .svg-menu-icon svg {
  transform: scale(1.08);
}

.menu-item.active .svg-menu-icon svg {
  transform: scale(1.08);
}

.header-svg-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

.header-svg-icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.streak-svg-icon {
  color: #0ea5e9;
}

body.dark-theme .streak-svg-icon {
  color: #38bdf8;
}

/* Khi sidebar thu gọn, icon vẫn căn giữa đẹp */
.sidebar.collapsed .svg-menu-icon {
  margin-right: 0 !important;
}

.sidebar.collapsed .menu-item {
  justify-content: center !important;
}
/* ======================================================
   APP SVG ICON SYSTEM
   Thay emoji bằng SVG đồng bộ mọi thiết bị
   ====================================================== */

.app-svg-inline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05em;
  height: 1.05em;
  min-width: 1.05em;
  vertical-align: -0.16em;
  color: currentColor;
  line-height: 1;
  flex-shrink: 0;
}

.app-svg-inline svg {
  width: 100%;
  height: 100%;
  display: block;
  color: currentColor;
}

/* Icon trong button / chip */
button .app-svg-inline,
.btn-add-word .app-svg-inline,
.menu-item .app-svg-inline,
.tool-chip .app-svg-inline,
.audio-btn .app-svg-inline {
  margin-right: 6px;
}

/* Nếu button chỉ có icon thì không cần margin */
.audio-btn .app-svg-inline:only-child,
.progress-mascot .app-svg-inline:only-child,
.tool-chip .app-svg-inline:only-child {
  margin-right: 0;
}

/* Menu icon */
.menu-icon .app-svg-inline,
.svg-menu-icon {
  width: 24px !important;
  height: 24px !important;
  min-width: 24px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.menu-icon .app-svg-inline svg,
.svg-menu-icon svg {
  width: 22px !important;
  height: 22px !important;
}

/* Streak */
.blue-flame .app-svg-inline,
.app-svg-icon--flame {
  color: #0ea5e9;
}

body.dark-theme .blue-flame .app-svg-inline,
body.dark-theme .app-svg-icon--flame {
  color: #38bdf8;
}

/* Mascot thanh tiến độ */
.progress-mascot .app-svg-inline {
  width: 34px;
  height: 34px;
  color: #f97316;
}

body.dark-theme .progress-mascot .app-svg-inline {
  color: #38bdf8;
}

/* Audio buttons */
.audio-btn .app-svg-inline {
  width: 24px;
  height: 24px;
}

.audio-btn .app-svg-icon--turtle {
  width: 23px;
  height: 23px;
}

/* Icon sửa */
.app-svg-icon--edit {
  color: #f59e0b;
}

/* Icon trophy */
.app-svg-icon--trophy {
  color: #f59e0b;
}

/* Icon sparkle */
.app-svg-icon--sparkles {
  color: currentColor;
}

/* Theme icon */
#btn-theme-toggle .app-svg-inline {
  width: 20px;
  height: 20px;
  margin-right: 0;
}

/* Sidebar collapsed */
.sidebar.collapsed .menu-icon .app-svg-inline,
.sidebar.collapsed .svg-menu-icon {
  margin-right: 0 !important;
}
/* ======================================================
   VOCAB EDIT MODAL FULLSCREEN + BUTTON FIX
   Popup edit từ full màn hình trên mobile, nút xóa/lưu cân lại
   ====================================================== */

@media (max-width: 768px) {
  #addWordModal.modal.show {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
  }

  #addWordModal .modal-box {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    padding: 18px 18px 112px 18px !important;
    overflow-y: auto !important;
    box-sizing: border-box !important;
  }

  #addWordModal .modal-header {
    position: sticky !important;
    top: -18px !important;
    z-index: 10 !important;
    background: var(--bg-surface) !important;
    padding: 14px 0 16px 0 !important;
    margin-bottom: 18px !important;
    border-bottom: 1px solid var(--border-color) !important;
  }

  #addWordModal .modal-title {
    font-size: 28px !important;
    line-height: 1.15 !important;
    letter-spacing: -0.4px !important;
  }

  #addWordModal .modal-close {
    width: 42px !important;
    height: 42px !important;
    border-radius: 999px !important;
    background: var(--bg-body) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-muted) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 24px !important;
  }

  #addWordModal .form-group {
    margin-bottom: 18px !important;
  }

  #addWordModal .form-label {
    font-size: 15px !important;
    font-weight: 900 !important;
    color: var(--text-muted) !important;
    margin-bottom: 8px !important;
  }

  #addWordModal .form-input {
    min-height: 54px !important;
    border-radius: 16px !important;
    font-size: 16px !important;
    font-weight: 750 !important;
    padding: 13px 15px !important;
    background: var(--bg-body) !important;
    border: 1.5px solid var(--border-color) !important;
    color: var(--text-main) !important;
  }

  #addWordModal textarea.form-input {
    min-height: 96px !important;
    line-height: 1.5 !important;
  }

  /* Form trong mobile chuyển về 1 cột cho dễ nhập */
  #addWordModal .modal-box > div[style*="grid-template-columns"] {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  /* Khối upload ảnh */
  #addWordModal .form-group[style*="dashed"] {
    background: var(--bg-body) !important;
    border-color: var(--border-color) !important;
    border-radius: 20px !important;
    padding: 16px !important;
  }

  #btnTriggerImage,
  #btnRemoveImage {
    min-height: 44px !important;
    border-radius: 14px !important;
    font-size: 14px !important;
  }

  /* Hàng nút cuối */
  #addWordModal .modal-box > div:last-child {
    position: sticky !important;
    bottom: -112px !important;
    z-index: 20 !important;

    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 10px !important;

    margin: 22px -18px -112px -18px !important;
    padding: 14px 18px 18px 18px !important;

    background: var(--bg-surface) !important;
    border-top: 1px solid var(--border-color) !important;
    box-shadow: 0 -12px 30px rgba(15, 23, 42, 0.08) !important;
  }

  /* Khi đang edit thì hiện 2 nút bằng nhau */
  #addWordModal.editing-word-mode .modal-box > div:last-child {
    grid-template-columns: 1fr 1fr !important;
  }

  #btnDeleteWord,
  #btnSubmitWord {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 54px !important;
    height: 54px !important;

    display: flex !important;
    align-items: center !important;
    justify-content: center !important;

    border-radius: 16px !important;
    padding: 0 12px !important;
    margin: 0 !important;

    font-size: 14px !important;
    line-height: 1.2 !important;
    font-weight: 950 !important;
    text-align: center !important;
    white-space: normal !important;
    box-sizing: border-box !important;
  }

  #btnDeleteWord {
    background: #fff1f2 !important;
    color: #e11d48 !important;
    border: 1.5px solid #fecdd3 !important;
  }

  #btnSubmitWord {
    background: #2563eb !important;
    color: white !important;
    border: 1.5px solid #2563eb !important;
    box-shadow: 0 5px 0 #1d4ed8 !important;
  }

  body.dark-theme #addWordModal .modal-header,
  body.dark-theme #addWordModal .modal-box > div:last-child {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme #addWordModal .modal-close {
    background: #020617 !important;
    border-color: #1e293b !important;
    color: #94a3b8 !important;
  }

  body.dark-theme #btnDeleteWord {
    background: rgba(239, 68, 68, 0.12) !important;
    color: #fca5a5 !important;
    border-color: rgba(239, 68, 68, 0.28) !important;
  }
}

/* ======================================================
   LEARN / REVIEW MOBILE ULTRA COMPACT
   Nội dung học nằm gọn 1/3 phía trên màn hình
   ====================================================== */

html {
  -webkit-text-size-adjust: 100%;
}

@media (max-width: 768px) {
  input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
  textarea,
  select {
    font-size: 16px !important;
    line-height: 1.35 !important;
  }

  input::placeholder,
  textarea::placeholder {
    font-size: 16px !important;
  }

  .form-input,
  .cd-input,
  .cd-search-input,
  .cd-textarea,
  .mochi-search-input,
  .vocab-filter-select,
  .vi-type-input,
  .ex-input,
  .rq-text-input,
  .rq-hidden-input,
  #aiVocabWordsInput,
  #aiWordsInput,
  #searchDBInput,
  #searchInDeckInput,
  #vocabSearchInput {
    font-size: 16px !important;
  }

  /* Khung học full màn nhưng nội dung bị dồn lên trên */
  #view-learning.active,
  #view-review-quiz.active {
    overflow: hidden !important;
    min-height: 100dvh !important;
    height: 100dvh !important;
  }

  #view-learning.active .learn-wrapper,
  #view-review-quiz.active .learn-wrapper {
    width: 100% !important;
    max-width: 100% !important;
    min-height: 100dvh !important;
    height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    overflow: hidden !important;
  }

  /* Header cực gọn */
  #view-learning.active .learn-header-area,
  #view-review-quiz.active .learn-header-area {
    padding: 6px 18px 0 18px !important;
    flex: 0 0 auto !important;
  }

  #view-learning.active .top-bar,
  #view-review-quiz.active .top-bar {
    gap: 10px !important;
    min-height: 30px !important;
  }

  #view-learning.active .close-btn,
  #view-review-quiz.active .close-btn {
    font-size: 24px !important;
    line-height: 1 !important;
  }

  #view-learning.active .progress-track,
  #view-review-quiz.active .progress-track {
    height: 12px !important;
  }

  #view-learning.active .progress-mascot,
  #view-review-quiz.active .progress-mascot {
    top: -12px !important;
    font-size: 25px !important;
  }

  /* Bỏ chữ Bước 2/4... */
  #view-learning.active .step-indicator,
  #view-review-quiz.active .step-indicator {
    display: none !important;
  }

  /* Vùng nội dung: không căn giữa màn nữa, dồn hẳn lên trên */
  #view-learning.active .learn-content-area,
  #view-review-quiz.active .learn-content-area {
    flex: 1 1 auto !important;
    overflow: hidden !important;

    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: flex-start !important;

    padding: 14px 18px 0 18px !important;
  }

  /* Không ép display để tránh hiện trùng màn */
  #view-learning.active .input-en-view,
  #view-learning.active .input-vi-view,
  #view-review-quiz.active .input-en-view,
  #view-review-quiz.active .input-vi-view {
    width: 100% !important;
    max-width: 760px !important;
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  /* Tiêu đề nhỏ và sát lên */
  #view-learning.active .vi-title,
  #view-review-quiz.active .vi-title,
  #view-learning.active #enWordForViInput,
  #view-review-quiz.active #enWordForViInput,
  #view-learning.active #inMeaning,
  #view-review-quiz.active #inMeaning {
    font-size: clamp(20px, 5.8vw, 27px) !important;
    line-height: 1.18 !important;
    margin: 2px 0 10px 0 !important;
    text-align: center !important;
  }

  /* Cụm loa nhỏ và sát hơn */
  #view-learning.active .audio-controls-inline,
  #view-review-quiz.active .audio-controls-inline {
    gap: 10px !important;
    margin: 4px 0 12px 0 !important;
  }

  #view-learning.active .audio-btn,
  #view-review-quiz.active .audio-btn {
    width: 48px !important;
    height: 48px !important;
    min-width: 48px !important;
    min-height: 48px !important;
    font-size: 20px !important;
  }

  #view-learning.active .audio-btn:first-child,
  #view-review-quiz.active .audio-btn:first-child {
    width: 56px !important;
    height: 56px !important;
    min-width: 56px !important;
    min-height: 56px !important;
  }

  /* Ô nhập thấp hơn, không chiếm nhiều diện tích */
  #view-learning.active .vi-type-input,
  #view-review-quiz.active .vi-type-input,
  #view-learning.active .rq-text-input,
  #view-review-quiz.active .rq-text-input {
    width: 100% !important;
    max-width: 760px !important;

    height: 48px !important;
    min-height: 48px !important;

    padding: 8px 14px !important;
    border-radius: 16px !important;

    text-align: center !important;
    font-size: 16px !important;
    font-weight: 750 !important;
  }

  /* Nút kiểm tra nhỏ lại, không quá to */
  #view-learning.active .btn-check-mobile,
  #view-review-quiz.active .btn-check-mobile {
    position: static !important;

    display: flex !important;
    align-items: center !important;
    justify-content: center !important;

    width: min(54vw, 220px) !important;
    max-width: 220px !important;
    min-width: 0 !important;

    height: 44px !important;
    min-height: 44px !important;

    margin: 12px auto 0 auto !important;
    padding: 0 16px !important;

    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    transform: none !important;

    border-radius: 999px !important;
    font-size: 15px !important;
    font-weight: 950 !important;
    text-align: center !important;

    background: var(--success-color) !important;
    color: white !important;
    border: none !important;

    box-shadow: 0 4px 0 #16a34a !important;
    z-index: auto !important;
  }

  #view-learning.active .btn-check-mobile:active,
  #view-review-quiz.active .btn-check-mobile:active {
    transform: translateY(2px) !important;
    box-shadow: 0 2px 0 #16a34a !important;
  }

  /* Spell mode cũng phải gọn */
  #view-learning.active .slots-wrapper,
  #view-review-quiz.active .slots-wrapper,
  #view-learning.active .rq-spell-wrapper,
  #view-review-quiz.active .rq-spell-wrapper {
    margin: 4px 0 8px 0 !important;
    max-width: 100% !important;
  }

  #view-learning.active .slots-outer-box,
  #view-review-quiz.active .slots-outer-box {
    padding: 6px 8px !important;
    border-radius: 12px !important;
  }

  #view-learning.active .slot,
  #view-review-quiz.active .slot,
  #view-learning.active .rq-spell-slot,
  #view-review-quiz.active .rq-spell-slot {
    width: 20px !important;
    min-width: 20px !important;
    height: 28px !important;
    font-size: 18px !important;
    border-bottom-width: 3px !important;
  }

  /* Khi focus input: tuyệt đối không đổi layout */
  body.mobile-input-focused #view-learning.active .learn-content-area,
  body.mobile-input-focused #view-review-quiz.active .learn-content-area,
  body.mobile-input-focused #view-learning.active .btn-check-mobile,
  body.mobile-input-focused #view-review-quiz.active .btn-check-mobile {
    transform: none !important;
  }
}
/* ======================================================
   IOS LEARNING SCROLL STABILIZER
   Khóa màn học để iPhone không tự kéo layout khi focus input
   ====================================================== */

@media (max-width: 768px) {
  body.learning-screen-mode {
    overflow: hidden !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    overscroll-behavior: none !important;
  }

  body.learning-screen-mode #view-learning.active,
  body.learning-screen-mode #view-review-quiz.active {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    overflow: hidden !important;
    z-index: 9990 !important;
    overscroll-behavior: none !important;
  }

  body.learning-screen-mode #view-learning.active .learn-wrapper,
  body.learning-screen-mode #view-review-quiz.active .learn-wrapper {
    width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    overflow: hidden !important;
  }

  body.learning-screen-mode #view-learning.active .learn-content-area,
  body.learning-screen-mode #view-review-quiz.active .learn-content-area {
    overflow: hidden !important;
    overscroll-behavior: none !important;
  }

  body.learning-screen-mode #view-learning.active .vi-type-input,
  body.learning-screen-mode #view-review-quiz.active .vi-type-input,
  body.learning-screen-mode #view-learning.active .rq-text-input,
  body.learning-screen-mode #view-review-quiz.active .rq-text-input {
    transform: translateZ(0);
  }
}
/* ======================================================
   TEST MOBILE PRO REBUILD - setup modal + exam drawer
   ====================================================== */

#btnMobileSubmitExam,
#btnToggleExamNav {
  display: none;
}

#examMobileNavOverlay {
  display: none;
}

.ex-grid-section-title {
  grid-column: 1 / -1;
  font-size: 13px;
  font-weight: 950;
  color: #94a3b8;
  letter-spacing: 0.04em;
  margin: 8px 0 2px 0;
  text-transform: uppercase;
}

.ex-section-heading {
  font-size: 26px;
  font-weight: 950;
  color: var(--text-main);
  margin: 18px 0 18px 0;
  padding-bottom: 10px;
  border-bottom: 4px solid #3b82f6;
  text-transform: uppercase;
}

/* Khi đang xem chủ đề con thì ẩn banner/tabs của khóa cha */

#course-detail-container.course-topic-detail-mode
  > .course-controls
  .view-tabs {
  display: none !important;
}

#course-detail-container.course-topic-detail-mode > .course-controls {
  justify-content: flex-start !important;
  margin-top: -4px !important;
  margin-bottom: 14px !important;
}

@media (max-width: 768px) {
  /* Setup đề thi full màn hình */
  #test-setup-modal {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
    background: rgba(2, 6, 23, 0.72) !important;
  }

  #test-setup-modal .login-box {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 0 !important;
    overflow: hidden !important;
    background: #0f172a !important;
    border: none !important;
  }

  #test-setup-modal .login-box > div:first-child {
    flex-shrink: 0 !important;
    padding: 22px 22px 18px 22px !important;
    background: #0f172a !important;
    border-bottom: 1px solid #1e293b !important;
  }

  #test-setup-modal .login-box > div:first-child div[style*="font-size: 22px"] {
    font-size: 28px !important;
    line-height: 1.05 !important;
    color: #38bdf8 !important;
    letter-spacing: -0.5px !important;
  }

  #btnCloseTestSetup {
    width: 44px !important;
    height: 44px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 999px !important;
    background: #1e293b !important;
    color: #cbd5e1 !important;
    font-size: 24px !important;
  }

  #test-setup-modal .login-box > div:nth-child(2) {
    flex: 1 !important;
    overflow-y: auto !important;
    padding: 18px 18px 110px 18px !important;
    background: #0f172a !important;
  }

  #test-setup-modal .login-box > div:last-child {
    flex-shrink: 0 !important;
    position: sticky !important;
    bottom: 0 !important;
    z-index: 20 !important;
    padding: 16px 18px 20px 18px !important;
    background: #0f172a !important;
    border-top: 1px solid #1e293b !important;
    box-shadow: 0 -18px 34px rgba(2, 6, 23, 0.36) !important;
  }

  #test-setup-modal .ts-row {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 9px !important;
    margin-bottom: 16px !important;
    padding: 0 !important;
  }

  #test-setup-modal .ts-label {
    color: #e2e8f0 !important;
    font-size: 15px !important;
    font-weight: 950 !important;
  }

  #test-setup-modal .ts-input,
  #test-setup-modal .ts-select {
    width: 100% !important;
    min-height: 54px !important;
    border-radius: 14px !important;
    background: #020617 !important;
    color: #f8fafc !important;
    border: 1.5px solid #334155 !important;
    font-size: 16px !important;
    font-weight: 850 !important;
  }

  #btnOpenTestWordSelector {
    width: 100% !important;
    min-height: 52px !important;
    border-radius: 16px !important;
    background: #020617 !important;
    color: #38bdf8 !important;
    border: 1.5px dashed #38bdf8 !important;
    font-weight: 950 !important;
  }

  #btnGenerateExam {
    min-height: 58px !important;
    border-radius: 16px !important;
    background: #3b82f6 !important;
    box-shadow: 0 6px 0 #1d4ed8 !important;
  }

  /* Màn thi mobile */
  #internal-exam-wrapper {
    background: #f7f8fc !important;
  }

  #internal-exam-wrapper > div:first-child {
    height: 74px !important;
    padding: 0 16px !important;
    background: #ffffff !important;
    border-bottom: 1px solid #e5e7eb !important;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06) !important;
  }

  #internal-exam-wrapper > div:first-child > div:first-child {
    display: none !important;
  }

  #internal-exam-wrapper > div:first-child > div:last-child {
    width: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 12px !important;
  }

  #btnExitExam {
    order: 1 !important;
    width: 54px !important;
    height: 54px !important;
    padding: 0 !important;
    border-radius: 16px !important;
    background: #fee2e2 !important;
    color: #ef4444 !important;
    border: none !important;
    font-size: 0 !important;
    flex-shrink: 0 !important;
  }

  #btnExitExam::before {
    content: "↪";
    font-size: 30px;
    font-weight: 900;
  }

  #examTimerDisplay {
    order: 2 !important;
    min-width: 112px !important;
    height: 54px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 999px !important;
    background: #e0f2fe !important;
    color: #0f172a !important;
    font-size: 24px !important;
    font-weight: 950 !important;
    padding: 0 16px !important;
  }

  #btnMobileSubmitExam {
    order: 3 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 54px !important;
    min-width: 118px !important;
    padding: 0 18px !important;
    border-radius: 14px !important;
    background: #3b82f6 !important;
    color: #ffffff !important;
    border: none !important;
    font-size: 16px !important;
    font-weight: 950 !important;
    white-space: nowrap !important;
  }

  #btnMobileSubmitExam.done {
    background: #22c55e !important;
  }

  #btnToggleExamNav {
    order: 4 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 54px !important;
    height: 54px !important;
    padding: 0 !important;
    border-radius: 16px !important;
    background: #ffffff !important;
    color: #64748b !important;
    border: 2px solid #cbd5e1 !important;
    flex-shrink: 0 !important;
  }

  #internal-exam-wrapper > div:nth-child(2) {
    display: block !important;
    height: calc(100dvh - 74px) !important;
    overflow: hidden !important;
  }

  #exam-main-content {
    width: 100% !important;
    height: calc(100dvh - 74px) !important;
    padding: 24px 16px 110px 16px !important;
    overflow-y: auto !important;
    background: #f7f8fc !important;
    scroll-padding-top: 18px !important;
  }

  #examMobileNavOverlay {
    display: block !important;
    position: fixed !important;
    inset: 0 !important;
    z-index: 10005 !important;
    background: rgba(15, 23, 42, 0.35) !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transition: 0.2s ease !important;
  }

  #internal-exam-wrapper.exam-nav-open #examMobileNavOverlay {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  .exam-sidebar {
    position: fixed !important;
    inset: 0 !important;
    z-index: 10006 !important;
    width: 100vw !important;
    height: 100dvh !important;
    max-width: 100vw !important;
    background: #ffffff !important;
    border-left: none !important;
    transform: translateX(100%) !important;
    transition: transform 0.24s ease !important;
    display: flex !important;
    flex-direction: column !important;
  }

  #internal-exam-wrapper.exam-nav-open .exam-sidebar {
    transform: translateX(0) !important;
  }

  .exam-sidebar > div:first-child {
    height: 84px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 18px !important;
    background: #ffffff !important;
    border-bottom: 1px solid #e5e7eb !important;
    color: #334155 !important;
    font-size: 22px !important;
    font-weight: 850 !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
  }

  #exam-sidebar-grid {
    flex: 1 !important;
    display: grid !important;
    grid-template-columns: repeat(5, 1fr) !important;
    gap: 24px 22px !important;
    align-content: start !important;
    overflow-y: auto !important;
    padding: 34px 22px 120px 22px !important;
    background: #ffffff !important;
  }

  .exam-sidebar > div:last-child {
    display: none !important;
  }

  .ex-grid-section-title {
    grid-column: 1 / -1 !important;
    color: #94a3b8 !important;
    font-size: 17px !important;
    font-weight: 950 !important;
    margin: 8px 0 -4px 0 !important;
  }

  .ex-grid-item {
    width: 100% !important;
    aspect-ratio: 1 !important;
    border-radius: 14px !important;
    background: #ffffff !important;
    border: 2px solid #e5e7eb !important;
    color: #64748b !important;
    font-size: 24px !important;
    font-weight: 650 !important;
  }

  .ex-grid-item.done {
    background: #eff6ff !important;
    border-color: #3b82f6 !important;
    color: #2563eb !important;
  }

  .ex-grid-item.correct {
    background: #22c55e !important;
    border-color: #22c55e !important;
    color: #ffffff !important;
  }

  .ex-grid-item.wrong {
    background: #ef4444 !important;
    border-color: #ef4444 !important;
    color: #ffffff !important;
  }

  .ex-section-heading {
    color: #0f172a !important;
    font-size: 24px !important;
    line-height: 1.15 !important;
    margin: 24px 0 18px 0 !important;
    padding-bottom: 12px !important;
    border-bottom: 4px solid #3b82f6 !important;
  }

  .ex-card {
    background: #ffffff !important;
    border: none !important;
    border-radius: 16px !important;
    padding: 22px 18px !important;
    margin-bottom: 26px !important;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06) !important;
  }

  .ex-badge {
    background: #0f172a !important;
    color: #ffffff !important;
    border-radius: 8px !important;
    padding: 9px 14px !important;
    font-size: 16px !important;
    margin-bottom: 18px !important;
  }

  .ex-qtext {
    color: #0f172a !important;
    font-size: 22px !important;
    line-height: 1.45 !important;
    font-weight: 600 !important;
    margin-bottom: 22px !important;
  }

  .ex-opt-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .ex-opt {
    min-height: 66px !important;
    border-radius: 12px !important;
    background: #ffffff !important;
    border: 2px solid #e5e7eb !important;
    color: #1f2937 !important;
    font-size: 20px !important;
    font-weight: 500 !important;
    padding: 14px 16px !important;
  }

  .ex-char {
    width: 44px !important;
    height: 44px !important;
    background: #f1f5f9 !important;
    color: #374151 !important;
    font-size: 20px !important;
    flex-shrink: 0 !important;
  }

  .ex-input {
    min-height: 58px !important;
    border-radius: 14px !important;
    font-size: 16px !important;
    background: #ffffff !important;
    color: #0f172a !important;
  }

  .ex-tf-row {
    display: block !important;
    padding: 16px 0 !important;
  }

  .ex-tf-text {
    color: #0f172a !important;
    font-size: 18px !important;
    line-height: 1.45 !important;
    margin-bottom: 12px !important;
  }

  .ex-tf-btns {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
  }

  .btn-tf {
    min-height: 48px !important;
    border-radius: 12px !important;
    background: #ffffff !important;
    color: #64748b !important;
  }
}
/* ======================================================
   FIX DARK MODE CHO MÀN THI MOBILE
   ====================================================== */

@media (max-width: 768px) {
  body.dark-theme #internal-exam-wrapper {
    background: #020617 !important;
  }

  body.dark-theme #internal-exam-wrapper > div:first-child {
    background: #0f172a !important;
    border-bottom: 1px solid #1e293b !important;
    box-shadow: none !important;
  }

  body.dark-theme #exam-main-content {
    background: #020617 !important;
  }

  body.dark-theme .ex-section-heading {
    color: #f8fafc !important;
    border-bottom-color: #38bdf8 !important;
  }

  body.dark-theme .ex-card {
    background: #1e293b !important;
    border: 1px solid #334155 !important;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35) !important;
  }

  body.dark-theme .ex-badge {
    background: #38bdf8 !important;
    color: #020617 !important;
  }

  body.dark-theme .ex-qtext {
    color: #f8fafc !important;
  }

  body.dark-theme .ex-opt {
    background: #0f172a !important;
    border-color: #334155 !important;
    color: #f8fafc !important;
  }

  body.dark-theme .ex-opt:hover {
    border-color: #38bdf8 !important;
  }

  body.dark-theme .ex-char {
    background: #1e293b !important;
    color: #93c5fd !important;
  }

  body.dark-theme .ex-input {
    background: #0f172a !important;
    border-color: #334155 !important;
    color: #f8fafc !important;
  }

  body.dark-theme .ex-tf-text {
    color: #f8fafc !important;
  }

  body.dark-theme .btn-tf {
    background: #0f172a !important;
    color: #cbd5e1 !important;
    border-color: #334155 !important;
  }

  body.dark-theme .exam-sidebar {
    background: #0f172a !important;
  }

  body.dark-theme .exam-sidebar > div:first-child {
    background: #0f172a !important;
    color: #f8fafc !important;
    border-bottom-color: #1e293b !important;
  }

  body.dark-theme #exam-sidebar-grid {
    background: #0f172a !important;
  }

  body.dark-theme .ex-grid-item {
    background: #020617 !important;
    border-color: #334155 !important;
    color: #cbd5e1 !important;
  }

  body.dark-theme .ex-grid-section-title {
    color: #94a3b8 !important;
  }

  body.dark-theme #btnToggleExamNav {
    background: #1e293b !important;
    color: #cbd5e1 !important;
    border-color: #334155 !important;
  }
}
/* ======================================================
   TEST WORD SELECTOR MOBILE FULLSCREEN V3 - THEME ADAPTIVE
   Light mode ra light, dark mode ra dark
   ====================================================== */

@media (max-width: 768px) {
  #testWordSelectorModal.modal.show {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
    background: rgba(15, 23, 42, 0.45) !important;
  }

  #testWordSelectorModal .modal-box {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    display: flex !important;
    flex-direction: column !important;
    background: var(--bg-surface) !important;
    border: none !important;
  }

  #testWordSelectorModal .modal-header {
    flex-shrink: 0 !important;
    height: 72px !important;
    padding: 0 16px !important;
    background: var(--bg-surface) !important;
    border-bottom: 1px solid var(--border-color) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
  }

  #testWordSelectorModal .modal-title {
    color: var(--text-main) !important;
    font-size: 18px !important;
    line-height: 1.15 !important;
    font-weight: 950 !important;
    white-space: nowrap !important;
  }

  #btnCloseTestWordSelector {
    width: 42px !important;
    height: 42px !important;
    border-radius: 999px !important;
    background: var(--bg-body) !important;
    color: #38bdf8 !important;
    border: 1px solid var(--border-color) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 24px !important;
    flex-shrink: 0 !important;
  }

  #testWordSelectorModal .modal-box > div:nth-child(2) {
    flex: 1 !important;
    min-height: 0 !important;
    display: grid !important;
    grid-template-columns: 42vw 58vw !important;
    overflow: hidden !important;
    background: var(--bg-surface) !important;
  }

  /* Cột nguồn bên trái */
  #testWordSelectorModal .ws-sidebar {
    width: 42vw !important;
    max-width: 42vw !important;
    height: 100% !important;
    max-height: none !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 16px 10px 120px 12px !important;
    background: var(--bg-surface) !important;
    border-right: 1px solid var(--border-color) !important;
    border-bottom: none !important;
    display: block !important;
    scrollbar-width: thin !important;
  }

  #testWordSelectorModal .ws-group-title {
    color: var(--text-muted) !important;
    font-size: 10px !important;
    font-weight: 950 !important;
    letter-spacing: 0.08em !important;
    margin: 16px 0 8px 0 !important;
    text-transform: uppercase !important;
  }

  #testWordSelectorModal .ws-tab {
    width: 100% !important;
    min-height: 38px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    padding: 9px 9px !important;
    margin: 0 0 8px 0 !important;
    border-radius: 12px !important;
    background: transparent !important;
    border: 1px solid transparent !important;
    color: var(--text-main) !important;
    font-size: 11px !important;
    line-height: 1.25 !important;
    font-weight: 850 !important;
    text-align: left !important;
    white-space: normal !important;
  }

  #testWordSelectorModal .ws-tab.active {
    background: #3b82f6 !important;
    color: #ffffff !important;
    border-color: #3b82f6 !important;
    box-shadow: 0 4px 0 #1d4ed8 !important;
  }

  /* Cột danh sách từ bên phải */
  #testWordSelectorModal .ws-main {
    width: 58vw !important;
    max-width: 58vw !important;
    height: 100% !important;
    min-height: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    background: var(--bg-surface) !important;
  }

  #testWordSelectorModal .ws-tools {
    flex-shrink: 0 !important;
    padding: 14px 10px 12px 10px !important;
    background: var(--bg-surface) !important;
    border-bottom: 1px solid var(--border-color) !important;
  }

  #testWordSelectorModal .ws-search {
    width: 100% !important;
    min-height: 48px !important;
    border-radius: 14px !important;
    background: var(--bg-body) !important;
    border: 1.5px solid var(--border-color) !important;
    color: var(--text-main) !important;
    font-size: 16px !important;
    font-weight: 750 !important;
    padding: 0 12px !important;
  }

  #testWordSelectorModal .ws-search::placeholder {
    color: var(--text-muted) !important;
  }

  #testWordSelectorModal .ws-tools > div {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    margin-top: 10px !important;
  }

  #testWordSelectorModal .ws-btn-tool {
    width: 100% !important;
    min-height: 40px !important;
    border-radius: 12px !important;
    background: var(--bg-body) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color) !important;
    font-size: 11px !important;
    font-weight: 850 !important;
    padding: 0 8px !important;
  }

  #testWordSelectorModal .ws-word-list {
    flex: 1 !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 12px 10px 120px 10px !important;
    background: var(--bg-surface) !important;
    scrollbar-width: thin !important;
  }

  /* Card từ trong danh sách */
  #testWordSelectorModal .ws-word-list label,
  #testWordSelectorModal .ws-word-item,
  #testWordSelectorModal .word-select-item {
    width: 100% !important;
    min-height: 58px !important;
    border-radius: 12px !important;
    background: var(--bg-body) !important;
    border: 1px solid var(--border-color) !important;
    margin-bottom: 8px !important;
    padding: 10px 10px !important;
    color: var(--text-main) !important;
  }

  #testWordSelectorModal .ws-word-list label *,
  #testWordSelectorModal .ws-word-item *,
  #testWordSelectorModal .word-select-item * {
    color: inherit;
  }

  #testWordSelectorModal .ws-word-list input[type="checkbox"] {
    width: 18px !important;
    height: 18px !important;
    flex-shrink: 0 !important;
    accent-color: #3b82f6 !important;
  }

  #testWordSelectorModal .modal-box > div:last-child {
    flex-shrink: 0 !important;
    position: sticky !important;
    bottom: 0 !important;
    z-index: 30 !important;
    min-height: 82px !important;
    padding: 12px 14px 16px 14px !important;
    background: var(--bg-surface) !important;
    border-top: 1px solid var(--border-color) !important;
    display: grid !important;
    grid-template-columns: 1fr 1.35fr !important;
    gap: 12px !important;
    align-items: center !important;
  }

  #testWordSelectorModal #twCountDisplay {
    color: #38bdf8 !important;
    font-size: 14px !important;
    font-weight: 950 !important;
  }

  #btnConfirmTestWords {
    width: 100% !important;
    min-height: 54px !important;
    border-radius: 14px !important;
    background: #3b82f6 !important;
    color: white !important;
    font-size: 14px !important;
    font-weight: 950 !important;
    box-shadow: 0 5px 0 #1d4ed8 !important;
    padding: 0 10px !important;
  }
}

/* Dark mode chỉnh riêng cho card từ, tránh bị trắng như ảnh mày gửi */
@media (max-width: 768px) {
  body.dark-theme #testWordSelectorModal.modal.show {
    background: rgba(2, 6, 23, 0.78) !important;
  }

  body.dark-theme #testWordSelectorModal .modal-box,
  body.dark-theme #testWordSelectorModal .modal-header,
  body.dark-theme #testWordSelectorModal .modal-box > div:nth-child(2),
  body.dark-theme #testWordSelectorModal .ws-sidebar,
  body.dark-theme #testWordSelectorModal .ws-main,
  body.dark-theme #testWordSelectorModal .ws-tools,
  body.dark-theme #testWordSelectorModal .ws-word-list,
  body.dark-theme #testWordSelectorModal .modal-box > div:last-child {
    background: #0f172a !important;
    border-color: #1e293b !important;
  }

  body.dark-theme #testWordSelectorModal .modal-title {
    color: #f8fafc !important;
  }

  body.dark-theme #btnCloseTestWordSelector {
    background: #1e293b !important;
    border-color: #334155 !important;
    color: #38bdf8 !important;
  }

  body.dark-theme #testWordSelectorModal .ws-search {
    background: #020617 !important;
    border-color: #334155 !important;
    color: #f8fafc !important;
  }

  body.dark-theme #testWordSelectorModal .ws-btn-tool {
    background: #1e293b !important;
    border-color: #334155 !important;
    color: #cbd5e1 !important;
  }

  body.dark-theme #testWordSelectorModal .ws-tab {
    color: #cbd5e1 !important;
  }

  body.dark-theme #testWordSelectorModal .ws-tab.active {
    background: #3b82f6 !important;
    color: #ffffff !important;
    border-color: #3b82f6 !important;
  }

  body.dark-theme #testWordSelectorModal .ws-word-list label,
  body.dark-theme #testWordSelectorModal .ws-word-item,
  body.dark-theme #testWordSelectorModal .word-select-item {
    background: #1e293b !important;
    border-color: #334155 !important;
    color: #f8fafc !important;
  }

  body.dark-theme #testWordSelectorModal .ws-word-list label div,
  body.dark-theme #testWordSelectorModal .ws-word-item div,
  body.dark-theme #testWordSelectorModal .word-select-item div {
    color: #f8fafc !important;
  }

  body.dark-theme #testWordSelectorModal .ws-word-list label small,
  body.dark-theme #testWordSelectorModal .ws-word-item small,
  body.dark-theme #testWordSelectorModal .word-select-item small {
    color: #94a3b8 !important;
  }
}

/* Màn cực hẹp thì tăng cột nguồn lên chút cho dễ đọc */
@media (max-width: 390px) {
  #testWordSelectorModal .modal-box > div:nth-child(2) {
    grid-template-columns: 45vw 55vw !important;
  }

  #testWordSelectorModal .ws-sidebar {
    width: 45vw !important;
    max-width: 45vw !important;
  }

  #testWordSelectorModal .ws-main {
    width: 55vw !important;
    max-width: 55vw !important;
  }

  #testWordSelectorModal .ws-tab {
    font-size: 10.5px !important;
    padding: 8px 8px !important;
  }
}
/* ======================================================
   COURSE TOPIC LIST POLISH - banner, tabs, topic cards
   ====================================================== */

#course-detail-container > .course-banner:not([style]) {
  background: linear-gradient(
    135deg,
    #3b82f6 0%,
    #2563eb 54%,
    #1d4ed8 100%
  ) !important;
  color: #ffffff !important;
  border: 1px solid rgba(147, 197, 253, 0.55) !important;
  border-radius: 18px !important;
  box-shadow: 0 8px 0 #1e40af, 0 18px 34px rgba(37, 99, 235, 0.22) !important;
  letter-spacing: 0 !important;
}

body.dark-theme #course-detail-container > .course-banner:not([style]) {
  background: linear-gradient(
    135deg,
    #1e40af 0%,
    #2563eb 58%,
    #0f4fbf 100%
  ) !important;
  border-color: rgba(56, 189, 248, 0.28) !important;
  box-shadow: 0 8px 0 #0f2f73, 0 18px 34px rgba(37, 99, 235, 0.18) !important;
}

#course-detail-container > .course-controls {
  justify-content: center !important;
}

#course-detail-container > .course-controls .view-tabs {
  width: min(100%, 520px) !important;
  margin: 0 auto !important;
  padding: 5px !important;
  gap: 5px !important;
  border-radius: 16px !important;
  background: #eef3f8 !important;
  border: 1px solid #dde7f2 !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9) !important;
}

#course-detail-container > .course-controls .v-tab {
  flex: 1 1 0 !important;
  text-align: center !important;
  border-radius: 13px !important;
  color: #64748b !important;
  font-size: 15px !important;
  font-weight: 900 !important;
  line-height: 1.2 !important;
  padding: 12px 14px !important;
}

#course-detail-container > .course-controls .v-tab.active {
  background: #ffffff !important;
  color: #2563eb !important;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.1) !important;
}

body.dark-theme #course-detail-container > .course-controls .view-tabs {
  background: #1e293b !important;
  border-color: #334155 !important;
  box-shadow: inset 0 1px 0 rgba(148, 163, 184, 0.08) !important;
}

body.dark-theme #course-detail-container > .course-controls .v-tab {
  color: #94a3b8 !important;
}

body.dark-theme #course-detail-container > .course-controls .v-tab.active {
  background: #334155 !important;
  color: #38bdf8 !important;
  box-shadow: 0 4px 14px rgba(2, 6, 23, 0.28) !important;
}

#course-detail-container .home-course-grid {
  gap: 18px !important;
  align-items: stretch !important;
}

#course-detail-container .btn-open-topic {
  border-radius: 18px !important;
  border: 1px solid #e2e8f0 !important;
  background: #ffffff !important;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06) !important;
  overflow: hidden !important;
}

#course-detail-container .btn-open-topic:hover {
  transform: translateY(-3px) !important;
  border-color: #bfdbfe !important;
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.12) !important;
}

#course-detail-container .btn-open-topic .pro-card-img {
  border-radius: 14px !important;
  background: #eaf3ff !important;
  box-shadow: none !important;
}

#course-detail-container .btn-open-topic .pro-card-title {
  color: #0f172a !important;
  font-weight: 950 !important;
}

#course-detail-container .btn-open-topic .pro-card-stats {
  color: #64748b !important;
}

#course-detail-container .btn-open-topic .pro-card-stats span:last-child {
  color: #f59e0b !important;
}

#course-detail-container .btn-open-topic .topic-card-meta {
  margin-bottom: 10px !important;
}

#course-detail-container .btn-open-topic .topic-card-count {
  color: #64748b !important;
  font-weight: 800 !important;
}

#course-detail-container .btn-open-topic .topic-card-progress-row {
  display: grid !important;
  grid-template-columns: 1fr 38px !important;
  align-items: center !important;
  gap: 12px !important;
  width: 100% !important;
  margin: 2px 0 6px 0 !important;
}

#course-detail-container .btn-open-topic .topic-card-progress-track {
  width: 100% !important;
  height: 7px !important;
  border-radius: 999px !important;
  background: #edf2f7 !important;
  overflow: hidden !important;
}

#course-detail-container .btn-open-topic .topic-card-progress-fill {
  height: 100% !important;
  min-width: 10px !important;
  border-radius: inherit !important;
  background: linear-gradient(90deg, #2563eb 0%, #3b82f6 100%) !important;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.22) !important;
}

#course-detail-container .btn-open-topic .topic-card-star {
  width: 34px !important;
  height: 34px !important;
  border-radius: 999px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #fff8db !important;
  color: #facc15 !important;
  border: 1px solid #fef3c7 !important;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.16) !important;
  font-size: 17px !important;
  line-height: 1 !important;
}

#course-detail-container .btn-open-topic .topic-card-learned {
  font-size: 14px !important;
  line-height: 1.2 !important;
  font-weight: 850 !important;
  margin-top: -2px !important;
}

body.dark-theme #course-detail-container .btn-open-topic {
  background: #0f172a !important;
  border: 1px solid #1f2d44 !important;
  box-shadow: none !important;
}

body.dark-theme #course-detail-container .btn-open-topic:hover {
  border-color: rgba(56, 189, 248, 0.35) !important;
  box-shadow: 0 12px 28px rgba(2, 6, 23, 0.34) !important;
}

body.dark-theme #course-detail-container .btn-open-topic .pro-card-img {
  background: #f8fafc !important;
  filter: none !important;
  opacity: 1 !important;
}

body.dark-theme #course-detail-container .btn-open-topic .pro-card-title {
  color: #38bdf8 !important;
}

body.dark-theme
  #course-detail-container
  .btn-open-topic
  .pro-card-stats
  span:first-child {
  color: #94a3b8 !important;
}

body.dark-theme
  #course-detail-container
  .btn-open-topic
  .pro-card-stats
  span:last-child {
  color: #fbbf24 !important;
}

body.dark-theme #course-detail-container .btn-open-topic .topic-card-count {
  color: #94a3b8 !important;
}

body.dark-theme
  #course-detail-container
  .btn-open-topic
  .topic-card-meta
  span.topic-card-count {
  color: #94a3b8 !important;
}

body.dark-theme
  #course-detail-container
  .btn-open-topic
  .topic-card-progress-track {
  background: #1e293b !important;
}

body.dark-theme
  #course-detail-container
  .btn-open-topic
  .topic-card-progress-fill {
  background: linear-gradient(90deg, #2563eb 0%, #38bdf8 100%) !important;
  box-shadow: 0 2px 8px rgba(56, 189, 248, 0.18) !important;
}

body.dark-theme #course-detail-container .btn-open-topic .topic-card-star {
  background: rgba(251, 191, 36, 0.12) !important;
  color: #fbbf24 !important;
  border-color: rgba(251, 191, 36, 0.2) !important;
  box-shadow: none !important;
}

body.dark-theme #course-detail-container .btn-open-topic .topic-card-learned {
  color: #fbbf24 !important;
}

@media (max-width: 768px) {
  #course-detail-container > .course-banner:not([style]) {
    padding: 16px 14px !important;
    border-radius: 16px !important;
    font-size: clamp(18px, 5.2vw, 24px) !important;
    line-height: 1.18 !important;
    margin-bottom: 22px !important;
  }

  #course-detail-container > .course-controls {
    margin-bottom: 24px !important;
  }

  #course-detail-container > .course-controls .view-tabs {
    width: min(100%, 320px) !important;
  }

  #course-detail-container > .course-controls .v-tab {
    font-size: 13px !important;
    padding: 11px 8px !important;
    white-space: nowrap !important;
  }

  #course-detail-container .home-course-grid {
    gap: 12px !important;
  }

  #course-detail-container .btn-open-topic {
    padding: 9px !important;
    border-radius: 16px !important;
  }

  #course-detail-container .btn-open-topic .pro-card-img {
    height: 96px !important;
    border-radius: 12px !important;
  }

  #course-detail-container .btn-open-topic .pro-card-title {
    font-size: 15px !important;
    line-height: 1.25 !important;
    margin-bottom: 7px !important;
  }

  #course-detail-container .btn-open-topic .pro-card-stats {
    font-size: 12px !important;
    gap: 5px !important;
  }

  #course-detail-container .btn-open-topic .topic-card-meta {
    margin-bottom: 8px !important;
  }

  #course-detail-container .btn-open-topic .topic-card-progress-row {
    grid-template-columns: 1fr 32px !important;
    gap: 8px !important;
    margin-bottom: 5px !important;
  }

  #course-detail-container .btn-open-topic .topic-card-progress-track {
    height: 6px !important;
  }

  #course-detail-container .btn-open-topic .topic-card-star {
    width: 30px !important;
    height: 30px !important;
    font-size: 15px !important;
  }

  #course-detail-container .btn-open-topic .topic-card-learned {
    font-size: 12px !important;
  }
}
/* FIX: ảnh course/topic/custom deck không bị crop trên mobile */
.pro-card-img,
#course-detail-container .btn-open-topic .pro-card-img,
#home-container .pro-card .pro-card-img {
  width: 100% !important;
  aspect-ratio: 16 / 9 !important;
  height: auto !important;
  object-fit: contain !important;
  object-position: center center !important;
  display: block !important;
  background: #eaf3ff !important;
}

/* Mobile: giữ ảnh full trong card 2 cột */
@media (max-width: 768px) {
  .pro-card-img,
  #course-detail-container .btn-open-topic .pro-card-img,
  #home-container .pro-card .pro-card-img {
    width: 100% !important;
    aspect-ratio: 16 / 9 !important;
    height: auto !important;
    object-fit: contain !important;
    object-position: center center !important;
    background: #eaf3ff !important;
  }
}
.m-load-more-wrap {
  display: flex;
  justify-content: center;
  padding: 18px 0 4px;
}

.btn-load-more-vocab {
  background: #3b82f6;
  color: #fff;
  border-radius: 14px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 5px 0 #2563eb;
}

.btn-load-more-vocab:active {
  transform: translateY(4px);
  box-shadow: none;
}

/* ================= SETTINGS UPGRADE - END OF FILE OVERRIDES ================= */
.settings-wrapper {
  width: min(100%, 980px) !important;
  max-width: 980px !important;
  margin: 0 auto 40px auto !important;
  padding: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 18px !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

.settings-card {
  background: var(--bg-surface) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 18px !important;
  box-shadow: var(--shadow-sm) !important;
  padding: 22px !important;
}

.settings-card-head {
  display: flex !important;
  justify-content: space-between !important;
  align-items: flex-start !important;
  gap: 16px !important;
  padding-bottom: 14px !important;
  margin-bottom: 14px !important;
  border-bottom: 1px dashed var(--border-color) !important;
}

.settings-card h3 {
  color: var(--text-main) !important;
  font-size: 22px !important;
  font-weight: 900 !important;
  line-height: 1.2 !important;
  margin: 0 0 4px 0 !important;
}

.settings-card p {
  color: var(--text-muted) !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  line-height: 1.45 !important;
  margin: 0 !important;
}

.settings-card .setting-item {
  gap: 18px !important;
  margin-bottom: 12px !important;
  background: var(--bg-body) !important;
  border-color: var(--border-color) !important;
}

.setting-select,
.setting-input {
  width: min(100%, 290px) !important;
  min-height: 44px !important;
  padding: 10px 14px !important;
  border-radius: 12px !important;
  border: 2px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
  color: var(--text-main) !important;
  font-family: inherit !important;
  font-size: 15px !important;
  font-weight: 800 !important;
  outline: none !important;
}

.setting-input {
  text-align: center !important;
}

.settings-action-btn {
  min-height: 46px !important;
  border: 2px solid var(--border-color) !important;
  border-radius: 12px !important;
  background: var(--bg-surface) !important;
  color: var(--text-main) !important;
  padding: 0 16px !important;
  font-family: inherit !important;
  font-size: 14px !important;
  font-weight: 900 !important;
  cursor: pointer !important;
}

.settings-action-btn.primary {
  width: 100% !important;
  background: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: #fff !important;
}

.settings-action-btn.danger {
  background: #fef2f2 !important;
  border-color: #fecaca !important;
  color: #dc2626 !important;
}

.settings-data-actions {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
  gap: 12px !important;
}

.settings-warning {
  margin-top: 14px !important;
  padding: 12px 14px !important;
  border-radius: 12px !important;
  background: #fff7ed !important;
  border: 1px solid #fed7aa !important;
  color: #9a3412 !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  line-height: 1.45 !important;
}

body.settings-no-animations *,
body.settings-no-animations *::before,
body.settings-no-animations *::after {
  animation: none !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}

body.settings-hide-progress .progress-track,
body.settings-hide-progress .progress-mascot,
body.settings-hide-progress .mochi-progress-line,
body.settings-hide-progress .topic-card-progress-row {
  display: none !important;
}

body.settings-vocab-font-small .m-word {
  font-size: 15px !important;
}

body.settings-vocab-font-small .m-meaning,
body.settings-vocab-font-small .m-meaning-row {
  font-size: 13px !important;
}

body.settings-vocab-font-medium .m-word {
  font-size: 18px !important;
}

body.settings-vocab-font-medium .m-meaning,
body.settings-vocab-font-medium .m-meaning-row {
  font-size: 15px !important;
}

body.settings-vocab-font-large .m-word {
  font-size: 22px !important;
}

body.settings-vocab-font-large .m-meaning,
body.settings-vocab-font-large .m-meaning-row {
  font-size: 17px !important;
}

body.settings-vocab-card-compact .mochi-item {
  padding-top: 12px !important;
  padding-bottom: 12px !important;
}

body.settings-vocab-card-compact .m-ipa,
body.settings-vocab-card-compact .m-item-footer {
  display: none !important;
}

body.settings-vocab-card-compact .m-img-box {
  width: 42px !important;
  height: 42px !important;
}

body.dark-theme .settings-card,
body.dark-theme .settings-card .setting-item,
body.dark-theme .setting-select,
body.dark-theme .setting-input,
body.dark-theme .settings-action-btn {
  background: var(--bg-surface) !important;
  border-color: var(--border-color) !important;
  color: var(--text-main) !important;
}

body.dark-theme .settings-card h3 {
  color: #38bdf8 !important;
}

body.dark-theme .settings-warning {
  background: rgba(251, 146, 60, 0.12) !important;
  border-color: rgba(251, 146, 60, 0.28) !important;
  color: #fdba74 !important;
}

@media (max-width: 768px) {
  .settings-wrapper {
    gap: 14px !important;
    margin-bottom: 24px !important;
  }

  .settings-card {
    padding: 16px !important;
    border-radius: 16px !important;
  }

  .settings-card h3 {
    font-size: 19px !important;
  }

  .settings-card .setting-item {
    align-items: stretch !important;
    flex-direction: column !important;
    gap: 12px !important;
    padding: 14px !important;
    border-radius: 14px !important;
  }

  .setting-info {
    padding-right: 0 !important;
  }

  .setting-name {
    font-size: 16px !important;
    line-height: 1.25 !important;
  }

  .setting-desc {
    font-size: 13px !important;
    line-height: 1.35 !important;
  }

  .setting-select,
  .setting-input {
    width: 100% !important;
  }

  .settings-card .toggle-switch {
    align-self: flex-start !important;
  }

  .settings-data-actions {
    grid-template-columns: 1fr !important;
  }
}
/* FIX: Ẩn modal mặc định, chỉ hiện khi có class .show */
.modal {
  display: none;
}

.modal.show {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
}
.btn-translate {
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e0f2fe;
  color: #0284c7;
  cursor: pointer;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.18);
}

.btn-translate:active {
  transform: scale(0.95);
}

.dark .btn-translate,
body.dark-mode .btn-translate {
  background: rgba(14, 165, 233, 0.16);
  color: #38bdf8;
}
.btn-translate {
  width: 36px !important;
  height: 36px !important;
  min-width: 36px !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 999px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: rgba(14, 165, 233, 0.16) !important;
  color: #38bdf8 !important;
  cursor: pointer !important;
  font-size: 19px !important;
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.2) !important;
}

.btn-translate svg {
  width: 19px !important;
  height: 19px !important;
  display: block !important;
}

.btn-translate.active {
  background: #38bdf8 !important;
  color: #020617 !important;
}

.flashcard-translate-row {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.fc-example-translation {
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
/* FIX: nút dịch nằm cạnh câu ví dụ, bản dịch hiện nhẹ bên dưới */
.flashcard-example-block,
.review-example-block {
  width: 100%;
  max-width: 620px;
  margin: 10px auto 0;
  text-align: center;
}

.flashcard-example-line,
.review-example-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.flashcard-example-line .mochi-fc-example,
.review-example-text {
  font-size: clamp(16px, 2.5vh, 20px);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  text-align: center;
  padding: 0;
  margin: 0;
  overflow: visible;
  max-height: none;
}

.review-example-text {
  font-size: 22px;
}

.btn-translate {
  width: 32px !important;
  height: 32px !important;
  min-width: 32px !important;
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 999px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
  background: rgba(14, 165, 233, 0.14) !important;
  color: #0ea5e9 !important;
  cursor: pointer !important;
  font-size: 17px !important;
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.18) !important;
}

.btn-translate svg {
  width: 17px !important;
  height: 17px !important;
  display: block !important;
}

.btn-translate.active {
  background: #0ea5e9 !important;
  color: #fff !important;
}

.inline-translation {
  display: none !important;
  margin: 6px auto 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-left: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  color: #3b82f6 !important;
  font-size: 15px !important;
  font-weight: 800 !important;
  font-style: italic !important;
  line-height: 1.45 !important;
  text-align: center !important;
}

.inline-translation.show {
  display: block !important;
  animation: none !important;
}

body.dark-theme .inline-translation,
body.dark-mode .inline-translation {
  color: #60a5fa !important;
}

/* Custom deck builder redesign */
#view-custom-deck.view-section {
  padding: 18px 14px 96px !important;
  overflow-x: hidden !important;
}

.cd-builder-redesign,
.cd-builder-redesign * {
  box-sizing: border-box;
}

.cd-builder-redesign {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
}

.cd-builder-redesign .cd-topbar {
  position: static !important;
  top: auto !important;
  z-index: auto !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  margin: 0 0 14px;
  padding: 0 !important;
  background: transparent !important;
}

.cd-builder-redesign .cd-back-btn,
.cd-builder-redesign .cd-save-top-btn {
  min-height: 46px;
  margin: 0 !important;
  border: none;
  border-radius: 999px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
}

.cd-builder-redesign .cd-back-btn {
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
}

.cd-builder-redesign .cd-save-top-btn {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff;
  box-shadow: 0 10px 22px rgba(34, 197, 94, 0.28);
}

.cd-builder-redesign .cd-hero-card,
.cd-builder-redesign .cd-panel {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 26px;
  background: var(--bg-surface);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

.cd-builder-redesign .cd-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(210px, 0.75fr);
  gap: 18px;
  align-items: center;
  margin-bottom: 16px;
  padding: 20px;
  overflow: hidden;
}

.cd-builder-redesign .cd-hero-copy {
  min-width: 0;
}

.cd-builder-redesign .cd-title {
  color: var(--text-main);
  font-size: 27px;
  line-height: 1.16;
  letter-spacing: 0;
}

.cd-builder-redesign .cd-subtitle {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.58;
}

.cd-builder-redesign .cd-hero-img {
  width: 100%;
  max-height: 190px;
  object-fit: contain;
  display: block;
}

.cd-builder-redesign .cd-save-warning {
  margin-top: 14px;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 18px;
  background: rgba(245, 158, 11, 0.12);
  color: #92400e;
  padding: 12px 14px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.45;
}

.cd-builder-redesign .cd-shell {
  display: grid;
  grid-template-columns: minmax(300px, 410px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.cd-builder-redesign .cd-editor-column {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.cd-builder-redesign .cd-settings-panel {
  position: static !important;
  top: auto !important;
  padding: 18px;
}

.cd-builder-redesign .cd-add-card,
.cd-builder-redesign .cd-content-card {
  padding: 18px;
}

.cd-builder-redesign .cd-field {
  margin-bottom: 16px;
}

.cd-builder-redesign .cd-field:last-child {
  margin-bottom: 0;
}

.cd-builder-redesign .cd-label {
  color: var(--text-main);
  font-size: 14px;
  font-weight: 900;
}

.cd-builder-redesign .cd-input,
.cd-builder-redesign .cd-search-input {
  min-height: 50px;
  border-radius: 18px !important;
  border: 1.5px solid rgba(148, 163, 184, 0.36);
  background: var(--bg-body);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 750;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.cd-builder-redesign .cd-input:focus,
.cd-builder-redesign .cd-search-input:focus {
  border-color: #22c55e !important;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.16);
}

.cd-builder-redesign .cd-cover-row {
  display: grid;
  grid-template-columns: minmax(112px, 38%) minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
}

.cd-builder-redesign .cd-cover-preview-card {
  min-width: 0;
  min-height: 126px;
  border: 1.5px dashed rgba(37, 99, 235, 0.28);
  border-radius: 22px;
  background: rgba(37, 99, 235, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.cd-builder-redesign .cd-cover-preview-img {
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  max-height: 140px;
  border: none;
  border-radius: 18px;
  object-fit: contain !important;
  background: transparent;
}

.cd-builder-redesign .cd-cover-upload-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cd-builder-redesign .cd-cover-upload-btn {
  min-height: 126px;
  width: 100%;
  border: 1.5px solid rgba(37, 99, 235, 0.2);
  border-radius: 22px;
  background: linear-gradient(
    180deg,
    rgba(239, 246, 255, 0.9),
    rgba(255, 255, 255, 0.88)
  );
  color: #2563eb;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
}

.cd-builder-redesign .cd-cover-upload-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #2563eb;
  font-size: 16px;
  font-weight: 950;
}

.cd-builder-redesign .deck-upload-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  color: #2563eb;
}

.cd-builder-redesign .cd-cover-upload-sub {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 800;
}

.cd-builder-redesign .cd-upload-status {
  min-height: 16px;
  color: #16a34a;
}

.cd-builder-redesign .cd-add-card {
  margin: 0;
}

.cd-builder-redesign .cd-source-head {
  margin-bottom: 14px;
}

.cd-builder-redesign .cd-source-title {
  font-size: 19px;
  font-weight: 950;
}

.cd-builder-redesign .cd-source-note {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}

.cd-builder-redesign .cd-source-ai {
  min-height: 76px;
  margin-bottom: 12px;
  border-radius: 22px;
  background: linear-gradient(135deg, #0ea5e9, #7c3aed);
  box-shadow: 0 14px 26px rgba(14, 165, 233, 0.24);
  font-size: 14px;
  letter-spacing: 0;
}

.cd-builder-redesign .cd-source-ai span {
  max-width: 280px;
  font-size: 11.5px;
  line-height: 1.35;
}

.cd-builder-redesign .cd-source-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.cd-builder-redesign .cd-source-primary {
  grid-column: 1 / -1;
  margin: 0;
}

.cd-builder-redesign .cd-source-primary,
.cd-builder-redesign .cd-source-secondary {
  min-height: 48px;
  border-radius: 17px;
  font-size: 13.5px;
}

.cd-builder-redesign .cd-delete-btn {
  margin: 0;
  border-radius: 18px;
  min-height: 46px;
}

.cd-builder-redesign .cd-content-card {
  min-height: 520px;
}

.cd-builder-redesign .cd-list-header {
  gap: 14px;
}

.cd-builder-redesign .cd-eyebrow {
  color: #2563eb;
  letter-spacing: 0.08em;
}

.cd-builder-redesign .cd-search-wrap {
  width: min(330px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px;
  gap: 8px;
}

.cd-builder-redesign .cd-filter-btn {
  width: 48px;
  height: 50px;
  border: 1.5px solid rgba(148, 163, 184, 0.36);
  border-radius: 16px;
  background: var(--bg-body);
  color: #2563eb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.cd-builder-redesign .cd-filter-btn svg {
  width: 22px;
  height: 22px;
}

.cd-builder-redesign .cd-words-list {
  min-width: 0;
}

.cd-builder-redesign .cd-empty-state {
  min-height: 360px;
  border-radius: 24px;
  border: 1.5px dashed rgba(148, 163, 184, 0.34);
  background: rgba(148, 163, 184, 0.08);
  padding: 26px 18px;
}

.cd-builder-redesign .cd-empty-img {
  width: min(210px, 72%);
  max-height: 170px;
  object-fit: contain;
  display: block;
  margin: 0 auto 14px;
}

.cd-builder-redesign .cd-empty-title {
  font-size: 19px;
  font-weight: 950;
}

.cd-builder-redesign .cd-empty-text {
  max-width: 360px;
  margin: 6px auto 0;
  font-size: 13.5px;
  line-height: 1.55;
}

body.dark-theme .cd-builder-redesign .cd-hero-card,
body.dark-theme .cd-builder-redesign .cd-panel {
  background: var(--bg-surface);
  border-color: rgba(148, 163, 184, 0.24);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
}

body.dark-theme .cd-builder-redesign .cd-back-btn {
  background: rgba(96, 165, 250, 0.16);
  color: #93c5fd;
}

body.dark-theme .cd-builder-redesign .cd-save-warning {
  background: rgba(245, 158, 11, 0.13);
  color: #fbbf24;
}

body.dark-theme .cd-builder-redesign .cd-cover-preview-card,
body.dark-theme .cd-builder-redesign .cd-empty-state {
  background: rgba(96, 165, 250, 0.08);
  border-color: rgba(96, 165, 250, 0.2);
}

body.dark-theme .cd-builder-redesign .cd-cover-upload-btn,
body.dark-theme .cd-builder-redesign .cd-filter-btn {
  background: var(--bg-body);
  border-color: rgba(96, 165, 250, 0.22);
  color: #93c5fd;
}

body.dark-theme .cd-builder-redesign .deck-upload-icon,
body.dark-theme .cd-builder-redesign .cd-cover-upload-main,
body.dark-theme .cd-builder-redesign .cd-eyebrow {
  color: #60a5fa;
}

@media (max-width: 880px) {
  .cd-builder-redesign {
    max-width: 640px;
  }

  .cd-builder-redesign .cd-shell,
  .cd-builder-redesign .cd-hero-card {
    grid-template-columns: 1fr !important;
  }

  .cd-builder-redesign .cd-hero-img {
    max-height: 170px;
  }

  .cd-builder-redesign .cd-list-header {
    flex-direction: column;
    align-items: stretch;
  }

  .cd-builder-redesign .cd-search-wrap {
    width: 100% !important;
  }
}

@media (max-width: 430px) {
  #view-custom-deck.view-section {
    padding: 12px 10px 96px !important;
  }

  .cd-builder-redesign .cd-back-btn,
  .cd-builder-redesign .cd-save-top-btn {
    min-height: 42px;
    padding: 0 12px;
    font-size: 13px;
  }

  .cd-builder-redesign .cd-hero-card,
  .cd-builder-redesign .cd-panel {
    border-radius: 24px;
  }

  .cd-builder-redesign .cd-hero-card,
  .cd-builder-redesign .cd-settings-panel,
  .cd-builder-redesign .cd-add-card,
  .cd-builder-redesign .cd-content-card {
    padding: 16px !important;
  }

  .cd-builder-redesign .cd-title {
    font-size: 22px !important;
  }

  .cd-builder-redesign .cd-cover-row {
    grid-template-columns: minmax(104px, 36%) minmax(0, 1fr);
    gap: 10px;
  }

  .cd-builder-redesign .cd-cover-preview-card,
  .cd-builder-redesign .cd-cover-upload-btn {
    min-height: 116px;
  }

  .cd-builder-redesign .cd-cover-upload-main {
    flex-direction: column;
    gap: 5px;
    font-size: 14px;
  }

  .cd-builder-redesign .cd-cover-upload-sub {
    font-size: 11px;
  }

  .cd-builder-redesign .cd-source-actions {
    grid-template-columns: 1fr;
  }

  .cd-builder-redesign .cd-empty-state {
    min-height: 300px !important;
  }
}

/* Custom deck builder reference layout */
#view-custom-deck.view-section {
  background: linear-gradient(
    180deg,
    rgba(239, 247, 255, 0.95),
    rgba(248, 250, 252, 0.98)
  ) !important;
}

.cd-builder-redesign {
  max-width: 820px;
}

.cd-builder-redesign .cd-shell {
  grid-template-columns: 1fr !important;
  gap: 22px;
}

.cd-builder-redesign .cd-editor-column {
  gap: 22px;
}

.cd-builder-redesign .cd-topbar {
  margin: 8px 0 22px !important;
}

.cd-builder-redesign .cd-back-btn {
  min-height: 56px;
  padding: 0 22px;
  border-radius: 18px;
  background: #fff;
  color: #0f172a;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.1);
}

.cd-builder-redesign .cd-save-top-btn {
  min-height: 56px;
  padding: 0 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 12px 24px rgba(22, 163, 74, 0.28);
  font-size: 16px;
}

.cd-builder-redesign .cd-panel {
  border-color: rgba(226, 232, 240, 0.95);
  border-radius: 28px;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.07);
}

.cd-builder-redesign .cd-settings-panel {
  padding: 30px !important;
}

.cd-builder-redesign .cd-hero-inline {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
}

.cd-builder-redesign .cd-hero-img {
  width: 112px;
  height: 112px;
  max-height: none;
  object-fit: contain;
}

.cd-builder-redesign .cd-hero-copy {
  min-width: 0;
}

.cd-builder-redesign .cd-title {
  font-size: 35px;
  line-height: 1.08;
  font-weight: 950;
  color: #07112f;
}

.cd-builder-redesign .cd-hero-copy .cd-title {
  white-space: nowrap;
}

.cd-builder-redesign .cd-title-spark {
  color: #2f80ed;
  font-size: 0.82em;
  vertical-align: 0.18em;
}

.cd-builder-redesign .cd-subtitle {
  margin-top: 12px;
  font-size: 18px;
  line-height: 1.45;
  color: #667085;
  font-weight: 700;
}

.cd-builder-redesign .cd-save-warning {
  margin: 0 0 26px;
  padding: 16px 18px;
  border-radius: 17px;
  border-color: rgba(251, 191, 36, 0.42);
  background: rgba(255, 251, 235, 0.9);
  color: #b45309;
  font-size: 16px;
}

.cd-builder-redesign .cd-label {
  margin-bottom: 12px;
  color: #07112f;
  font-size: 19px;
  font-weight: 950;
}

.cd-builder-redesign .cd-title-field {
  margin-bottom: 26px;
}

.cd-builder-redesign .cd-input-wrap {
  position: relative;
}

.cd-builder-redesign .cd-input-wrap .cd-input {
  padding-right: 50px;
}

.cd-builder-redesign .cd-input-sparkle {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: #bfdbfe;
  font-size: 28px;
  pointer-events: none;
}

.cd-builder-redesign .cd-input,
.cd-builder-redesign .cd-search-input {
  min-height: 62px;
  border-radius: 16px !important;
  border: 2px solid rgba(37, 99, 235, 0.16);
  background: #fff;
  color: #07112f;
  font-size: 18px;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.06);
}

.cd-builder-redesign .cd-input:focus,
.cd-builder-redesign .cd-search-input:focus {
  border-color: #2f80ed !important;
  box-shadow: 0 0 0 4px rgba(47, 128, 237, 0.14),
    0 10px 22px rgba(37, 99, 235, 0.12);
}

.cd-builder-redesign .cd-cover-row {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 2fr);
  gap: 18px;
}

.cd-builder-redesign .cd-cover-preview-card {
  min-height: 132px;
  border-radius: 20px;
  border: 2px dashed rgba(96, 165, 250, 0.45);
  background: #fff;
}

.cd-builder-redesign .cd-cover-upload-btn {
  min-height: 132px;
  border-radius: 20px;
  border-color: rgba(148, 163, 184, 0.28);
  background: #fff;
  box-shadow: none;
}

.cd-builder-redesign .cd-cover-upload-main {
  font-size: 20px;
  color: #1d70df;
}

.cd-builder-redesign .deck-upload-icon {
  width: 30px;
  height: 30px;
  color: #1d70df;
}

.cd-builder-redesign .cd-cover-upload-sub {
  font-size: 16px;
  color: #7a8599;
}

.cd-builder-redesign .cd-add-card {
  padding: 28px 24px !important;
}

.cd-builder-redesign .cd-source-head {
  position: relative;
  padding-left: 72px;
  min-height: 58px;
  margin-bottom: 18px;
}

.cd-builder-redesign .cd-source-head::before {
  content: none;
}

.cd-builder-redesign .cd-add-head-icon {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cd-builder-redesign .cd-add-head-icon svg {
  width: 30px;
  height: 30px;
  display: block;
}

body.dark-theme .cd-builder-redesign .cd-add-head-icon {
  background: linear-gradient(135deg, #2563eb, #8b5cf6);
  color: #fff;
}

.cd-builder-redesign .cd-source-title {
  margin-bottom: 6px;
  color: #07112f;
  font-size: 26px;
}

.cd-builder-redesign .cd-source-note {
  font-size: 17px;
  color: #667085;
}

.cd-builder-redesign .cd-source-ai {
  min-height: 100px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 34px;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  padding: 18px 22px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0877f2, #7c2df2);
  box-shadow: 0 12px 22px rgba(79, 70, 229, 0.25);
  text-align: center;
}

.cd-builder-redesign .cd-ai-spark,
.cd-builder-redesign .cd-ai-arrow {
  color: #fff;
  font-size: 32px;
  font-weight: 900;
}

.cd-builder-redesign .cd-ai-copy {
  min-width: 0;
  display: grid;
  gap: 8px;
}

.cd-builder-redesign .cd-ai-copy b {
  color: #fff;
  font-size: 22px;
  line-height: 1.1;
}

.cd-builder-redesign .cd-ai-copy small {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 1.25;
  font-weight: 700;
}

.cd-builder-redesign .cd-source-actions {
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  gap: 14px;
}

.cd-builder-redesign .cd-source-primary,
.cd-builder-redesign .cd-source-secondary {
  grid-column: auto !important;
  min-height: 92px;
  padding: 12px 8px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  white-space: normal;
}

.cd-builder-redesign .cd-source-primary {
  background: rgba(239, 246, 255, 0.95);
  border: 1.5px solid rgba(59, 130, 246, 0.2);
  color: #07112f;
}

.cd-builder-redesign .cd-source-secondary:nth-child(2) {
  background: rgba(255, 251, 235, 0.95);
  border-color: rgba(245, 158, 11, 0.24);
}

.cd-builder-redesign .cd-source-secondary:nth-child(3) {
  background: rgba(236, 254, 255, 0.95);
  border-color: rgba(20, 184, 166, 0.22);
}

.cd-builder-redesign .cd-source-btn-icon {
  font-size: 30px;
  line-height: 1;
}

.cd-builder-redesign .cd-source-btn-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.cd-builder-redesign .cd-source-btn-copy b {
  color: #07112f;
  font-size: 16px;
  line-height: 1.15;
}

.cd-builder-redesign .cd-source-btn-copy small {
  color: #475467;
  font-size: 14px;
  line-height: 1.15;
  font-weight: 700;
}

.cd-builder-redesign .cd-content-card {
  padding: 28px 24px !important;
  min-height: 420px;
}

.cd-builder-redesign .cd-list-header {
  display: grid !important;
  grid-template-columns: 1fr !important;
  align-items: stretch !important;
  gap: 16px !important;
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 16px;
}

.cd-builder-redesign .cd-content-card .cd-list-header > div:first-child {
  width: 100%;
  min-width: 0;
}

.cd-builder-redesign .cd-content-card .cd-eyebrow,
.cd-builder-redesign .cd-content-card .cd-title {
  display: block;
  white-space: nowrap;
}

.cd-builder-redesign .cd-eyebrow {
  margin-bottom: 8px;
  color: #1570ef;
  font-size: 15px;
}

.cd-builder-redesign .cd-content-card .cd-title {
  font-size: 28px;
}

.cd-builder-redesign .cd-search-wrap {
  position: relative;
  width: 100% !important;
  grid-template-columns: minmax(0, 1fr) 78px;
  gap: 18px;
}

.cd-builder-redesign .cd-search-wrap::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  border: 2px solid #667085;
  border-radius: 999px;
  opacity: 0.72;
  z-index: 1;
}

.cd-builder-redesign .cd-search-wrap::after {
  content: "";
  position: absolute;
  left: 34px;
  top: calc(50% + 10px);
  width: 10px;
  height: 2px;
  background: #667085;
  transform: rotate(45deg);
  opacity: 0.72;
  z-index: 1;
}

.cd-builder-redesign .cd-search-input {
  padding-left: 58px;
  box-shadow: none;
}

.cd-builder-redesign .cd-filter-btn {
  width: 78px;
  height: 62px;
  border-radius: 16px;
  background: #fff;
  color: #475467;
}

.cd-builder-redesign .cd-empty-state {
  min-height: 178px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
  align-items: center;
  padding: 18px 24px;
  border-radius: 20px;
  background: #fff;
}

.cd-builder-redesign .cd-empty-img {
  width: 100%;
  max-height: 138px;
  margin: 0;
}

.cd-builder-redesign .cd-empty-title,
.cd-builder-redesign .cd-empty-text {
  text-align: left;
}

.cd-builder-redesign .cd-empty-title {
  font-size: 21px;
  color: #07112f;
}

.cd-builder-redesign .cd-empty-text {
  margin: 8px 0 0;
  color: #667085;
  font-size: 16px;
}

body.dark-theme #view-custom-deck.view-section {
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.98),
    rgba(2, 6, 23, 0.98)
  ) !important;
}

body.dark-theme .cd-builder-redesign .cd-back-btn,
body.dark-theme .cd-builder-redesign .cd-input,
body.dark-theme .cd-builder-redesign .cd-search-input,
body.dark-theme .cd-builder-redesign .cd-cover-preview-card,
body.dark-theme .cd-builder-redesign .cd-cover-upload-btn,
body.dark-theme .cd-builder-redesign .cd-filter-btn,
body.dark-theme .cd-builder-redesign .cd-empty-state {
  background: #0f172a;
}

body.dark-theme .cd-builder-redesign .cd-title,
body.dark-theme .cd-builder-redesign .cd-label,
body.dark-theme .cd-builder-redesign .cd-source-title,
body.dark-theme .cd-builder-redesign .cd-source-btn-copy b,
body.dark-theme .cd-builder-redesign .cd-empty-title {
  color: #f8fafc;
}

body.dark-theme .cd-builder-redesign .cd-subtitle,
body.dark-theme .cd-builder-redesign .cd-source-note,
body.dark-theme .cd-builder-redesign .cd-source-btn-copy small,
body.dark-theme .cd-builder-redesign .cd-empty-text {
  color: #cbd5e1;
}

body.dark-theme .cd-builder-redesign .cd-source-primary,
body.dark-theme .cd-builder-redesign .cd-source-secondary:nth-child(2),
body.dark-theme .cd-builder-redesign .cd-source-secondary:nth-child(3) {
  background: #111827;
  border-color: rgba(148, 163, 184, 0.25);
}

@media (max-width: 430px) {
  .cd-builder-redesign .cd-topbar {
    margin-top: 10px !important;
  }

  .cd-builder-redesign .cd-back-btn,
  .cd-builder-redesign .cd-save-top-btn {
    min-height: 52px;
    border-radius: 17px;
    font-size: 15px;
  }

  .cd-builder-redesign .cd-save-top-btn {
    padding: 0 18px;
  }

  .cd-builder-redesign .cd-settings-panel,
  .cd-builder-redesign .cd-add-card,
  .cd-builder-redesign .cd-content-card {
    padding: 24px 22px !important;
  }

  .cd-builder-redesign .cd-hero-inline {
    grid-template-columns: 82px minmax(0, 1fr);
    gap: 14px;
  }

  .cd-builder-redesign .cd-hero-img {
    width: 82px;
    height: 82px;
  }

  .cd-builder-redesign .cd-title {
    font-size: 30px !important;
  }

  .cd-builder-redesign .cd-subtitle {
    font-size: 15.5px !important;
  }

  .cd-builder-redesign .cd-save-warning {
    font-size: 15px;
  }

  .cd-builder-redesign .cd-label {
    font-size: 18px;
  }

  .cd-builder-redesign .cd-cover-row {
    grid-template-columns: minmax(104px, 0.95fr) minmax(0, 1.65fr);
    gap: 14px;
  }

  .cd-builder-redesign .cd-cover-preview-card,
  .cd-builder-redesign .cd-cover-upload-btn {
    min-height: 122px;
  }

  .cd-builder-redesign .cd-cover-upload-main {
    flex-direction: row;
    font-size: 18px;
  }

  .cd-builder-redesign .cd-cover-upload-sub {
    font-size: 14px;
  }

  .cd-builder-redesign .cd-source-title {
    font-size: 25px;
  }

  .cd-builder-redesign .cd-source-note {
    font-size: 16px;
  }

  .cd-builder-redesign .cd-ai-copy b {
    font-size: 18px;
  }

  .cd-builder-redesign .cd-ai-copy small {
    font-size: 14px;
  }

  .cd-builder-redesign .cd-source-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    gap: 10px;
  }

  .cd-builder-redesign .cd-source-primary,
  .cd-builder-redesign .cd-source-secondary {
    min-height: 92px;
    flex-direction: column;
  }

  .cd-builder-redesign .cd-source-btn-icon {
    font-size: 28px;
  }

  .cd-builder-redesign .cd-source-btn-copy b {
    font-size: 15px;
  }

  .cd-builder-redesign .cd-source-btn-copy small {
    font-size: 13px;
  }

  .cd-builder-redesign .cd-content-card .cd-title {
    font-size: 28px !important;
  }

  .cd-builder-redesign .cd-empty-state {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    min-height: 178px !important;
    padding: 14px 16px;
  }

  .cd-builder-redesign .cd-empty-title {
    font-size: 19px;
  }

  .cd-builder-redesign .cd-empty-text {
    font-size: 15px;
  }
}

/* Fix AI button text wrapping and replace emoji-style source icons */
.cd-builder-redesign .cd-source-ai .cd-ai-spark,
.cd-builder-redesign .cd-source-ai .cd-ai-arrow,
.cd-builder-redesign .cd-source-ai .cd-ai-copy {
  max-width: none !important;
}

.cd-builder-redesign .cd-source-ai .cd-ai-spark,
.cd-builder-redesign .cd-source-ai .cd-ai-arrow {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.cd-builder-redesign .cd-source-ai .cd-ai-spark svg,
.cd-builder-redesign .cd-source-ai .cd-ai-arrow svg {
  width: 100%;
  height: 100%;
  display: block;
}

.cd-builder-redesign .cd-source-ai .cd-ai-copy {
  width: 100%;
  min-width: 0;
  justify-items: center;
}

.cd-builder-redesign .cd-source-ai .cd-ai-copy small {
  max-width: none !important;
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cd-builder-redesign .cd-source-btn-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  font-size: 0;
}

.cd-builder-redesign .cd-source-svg-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.cd-builder-redesign .cd-source-btn-icon-blue {
  color: #1d70df;
  background: rgba(29, 112, 223, 0.12);
}

.cd-builder-redesign .cd-source-btn-icon-amber {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.14);
}

.cd-builder-redesign .cd-source-btn-icon-teal {
  color: #0f766e;
  background: rgba(20, 184, 166, 0.14);
}

body.dark-theme .cd-builder-redesign .cd-source-btn-icon-blue {
  color: #60a5fa;
  background: rgba(96, 165, 250, 0.16);
}

body.dark-theme .cd-builder-redesign .cd-source-btn-icon-amber {
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.16);
}

body.dark-theme .cd-builder-redesign .cd-source-btn-icon-teal {
  color: #2dd4bf;
  background: rgba(45, 212, 191, 0.16);
}

@media (max-width: 430px) {
  .cd-builder-redesign .cd-source-ai {
    grid-template-columns: 26px minmax(0, 1fr) 24px;
  }

  .cd-builder-redesign .cd-source-ai .cd-ai-spark,
  .cd-builder-redesign .cd-source-ai .cd-ai-arrow {
    width: 24px;
    height: 24px;
  }

  .cd-builder-redesign .cd-source-ai .cd-ai-copy small {
    font-size: 12.5px;
  }
}

/* Test & Game hub refresh */
#view-test.view-section {
  min-height: calc(100vh - 72px);
  background: radial-gradient(
      circle at top right,
      rgba(14, 165, 233, 0.12),
      transparent 34%
    ),
    linear-gradient(
      180deg,
      rgba(248, 250, 252, 0.98),
      rgba(241, 245, 249, 0.98)
    );
}

.test-hub {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 18px 72px;
}

.test-hub-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 20px;
  align-items: stretch;
  margin-bottom: 22px;
  padding: 28px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 28px;
  background: linear-gradient(135deg, #ffffff, #eff6ff);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.08);
}

.test-hub-kicker,
.test-setup-kicker,
.tg-eyebrow,
.test-type-title {
  color: #1570ef;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.test-hub-copy h2 {
  margin: 8px 0 10px;
  color: #07112f;
  font-size: 36px;
  line-height: 1.05;
  font-weight: 950;
  letter-spacing: 0;
}

.test-hub-copy p {
  max-width: 620px;
  margin: 0;
  color: #667085;
  font-size: 15px;
  line-height: 1.65;
  font-weight: 700;
}

.test-hub-meter {
  border-radius: 24px;
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 16px 28px rgba(37, 99, 235, 0.25);
}

.test-hub-meter span {
  font-size: 38px;
  line-height: 1;
  font-weight: 950;
}

.test-hub-meter small {
  margin-top: 6px;
  font-size: 12px;
  font-weight: 850;
  opacity: 0.92;
}

.test-hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.test-gateway-card {
  min-width: 0;
  min-height: 260px;
  position: relative;
  align-items: flex-start;
  text-align: left;
  gap: 16px;
  padding: 24px !important;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.07);
  cursor: pointer;
  overflow: hidden;
}

.test-gateway-card::after {
  content: "";
  position: absolute;
  right: -44px;
  top: -44px;
  width: 150px;
  height: 150px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  pointer-events: none;
}

.test-gateway-card-secondary::after {
  background: rgba(20, 184, 166, 0.09);
}

.test-gateway-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: 0 20px 36px rgba(15, 23, 42, 0.1);
}

.test-gateway-card .tg-icon {
  width: 58px;
  height: 58px;
  margin: 0;
  border-radius: 18px;
  background: #eff6ff;
  color: #2563eb;
  font-size: 0;
}

.test-gateway-card-secondary .tg-icon {
  background: #ecfeff;
  color: #0f766e;
}

.test-gateway-card .tg-icon svg {
  width: 30px;
  height: 30px;
  display: block;
}

.tg-card-content {
  min-width: 0;
  flex: 1;
}

.tg-title {
  margin: 6px 0 8px;
  color: #07112f;
  font-size: 23px;
  line-height: 1.15;
}

.tg-desc {
  margin: 0;
  color: #667085;
  font-size: 14px;
  line-height: 1.6;
  font-weight: 700;
}

.tg-btn {
  min-height: 48px;
  margin-top: auto;
  border-radius: 16px;
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.24);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-transform: none;
}

.tg-btn svg {
  width: 18px;
  height: 18px;
}

.tg-btn-muted {
  background: #e2e8f0 !important;
  color: #475467 !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
}

/* Test setup modal refresh */
#test-setup-modal {
  background: rgba(15, 23, 42, 0.36);
  backdrop-filter: blur(10px);
}

#test-setup-modal .test-setup-card {
  width: min(94vw, 560px) !important;
  max-width: 560px !important;
  max-height: min(760px, 92vh) !important;
  padding: 0 !important;
  overflow: hidden !important;
  display: flex !important;
  flex-direction: column !important;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 28px !important;
  background: #f8fafc !important;
  box-shadow: 0 28px 70px rgba(15, 23, 42, 0.18);
}

.test-setup-head {
  display: flex !important;
  align-items: flex-start !important;
  justify-content: space-between !important;
  gap: 16px;
  padding: 26px 28px 20px !important;
  border-bottom: 1px solid rgba(148, 163, 184, 0.18) !important;
  background: #fff !important;
}

.test-setup-title {
  margin-top: 6px;
  color: #07112f;
  font-size: 25px;
  line-height: 1.1;
  font-weight: 950;
}

.test-setup-subtitle {
  margin: 8px 0 0;
  color: #667085;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.45;
}

#btnCloseTestSetup.test-setup-close {
  position: static !important;
  width: 42px !important;
  height: 42px !important;
  min-width: 42px;
  border: none;
  border-radius: 14px;
  background: #f1f5f9;
  color: #64748b;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  font-size: 22px !important;
  font-weight: 900;
  cursor: pointer;
}

.test-setup-body {
  flex: 1;
  overflow-y: auto;
  padding: 22px 28px 24px !important;
  background: #f8fafc !important;
}

.test-setup-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}

.test-setup-summary > div {
  padding: 14px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 18px;
  background: #fff;
}

.test-setup-summary span {
  display: block;
  color: #2563eb;
  font-size: 25px;
  line-height: 1;
  font-weight: 950;
}

.test-setup-summary small {
  display: block;
  margin-top: 6px;
  color: #667085;
  font-size: 12px;
  font-weight: 850;
}

#test-setup-modal .ts-row {
  min-width: 0;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
}

#test-setup-modal .ts-row-source {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

#test-setup-modal .ts-label {
  color: #334155;
  font-size: 14px;
  font-weight: 900;
}

#test-setup-modal .ts-label small {
  display: block;
  margin-top: 3px;
  color: #667085;
  font-size: 12px;
  font-weight: 750;
}

#btnOpenTestWordSelector {
  min-height: 44px;
  border: 1.5px dashed rgba(37, 99, 235, 0.38);
  border-radius: 14px;
  background: #fff;
  color: #2563eb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  font-weight: 900;
  cursor: pointer;
}

#btnOpenTestWordSelector svg {
  width: 18px;
  height: 18px;
}

.test-setup-grid {
  display: grid;
  grid-template-columns: 0.76fr 1.24fr;
  gap: 14px;
}

.test-setup-grid .ts-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}

#test-setup-modal .ts-select,
#test-setup-modal .ts-input {
  width: 100% !important;
  min-height: 46px;
  border-radius: 14px !important;
  border: 1.5px solid rgba(148, 163, 184, 0.35);
  background: #fff;
  color: #07112f;
  box-shadow: none;
}

#test-setup-modal .ts-select:focus,
#test-setup-modal .ts-input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.test-type-panel {
  margin-top: 16px;
  padding: 16px 18px 4px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.test-type-title {
  margin-bottom: 4px;
}

.test-type-panel .ts-row:last-child {
  border-bottom: 0;
}

.test-setup-footer {
  padding: 20px 28px 26px !important;
  border-top: 1px solid rgba(148, 163, 184, 0.18) !important;
  background: #fff !important;
}

#btnGenerateExam.test-start-btn {
  width: 100%;
  min-height: 58px;
  border: none;
  border-radius: 18px;
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #fff;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.26);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 950;
  text-transform: none;
  cursor: pointer;
}

#btnGenerateExam.test-start-btn svg {
  width: 20px;
  height: 20px;
}

body.dark-theme #view-test.view-section {
  background: radial-gradient(
      circle at top right,
      rgba(14, 165, 233, 0.12),
      transparent 34%
    ),
    linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
}

body.dark-theme .test-hub-hero,
body.dark-theme .test-gateway-card,
body.dark-theme #test-setup-modal .test-setup-card,
body.dark-theme .test-setup-head,
body.dark-theme .test-setup-footer,
body.dark-theme .test-setup-summary > div,
body.dark-theme .test-type-panel,
body.dark-theme #btnOpenTestWordSelector,
body.dark-theme #test-setup-modal .ts-select,
body.dark-theme #test-setup-modal .ts-input {
  background: #0f172a !important;
  border-color: rgba(148, 163, 184, 0.22);
}

body.dark-theme .test-hub-copy h2,
body.dark-theme .tg-title,
body.dark-theme .test-setup-title,
body.dark-theme #test-setup-modal .ts-label,
body.dark-theme #test-setup-modal .ts-select,
body.dark-theme #test-setup-modal .ts-input {
  color: #f8fafc !important;
}

body.dark-theme .test-hub-copy p,
body.dark-theme .tg-desc,
body.dark-theme .test-setup-subtitle,
body.dark-theme #test-setup-modal .ts-label small,
body.dark-theme .test-setup-summary small {
  color: #cbd5e1 !important;
}

body.dark-theme .test-setup-body {
  background: #020617 !important;
}

body.dark-theme #btnCloseTestSetup.test-setup-close {
  background: #1e293b !important;
  color: #cbd5e1 !important;
}

@media (max-width: 768px) {
  #view-test.view-section {
    padding: 12px 10px 96px !important;
  }

  .test-hub {
    padding: 8px 0 56px;
  }

  .test-hub-hero {
    grid-template-columns: 1fr;
    padding: 20px;
    border-radius: 24px;
  }

  .test-hub-copy h2 {
    font-size: 30px;
  }

  .test-hub-meter {
    min-height: 88px;
    align-items: flex-start;
    padding: 18px;
  }

  .test-hub-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .test-gateway-card {
    width: 100% !important;
    min-height: 230px;
    padding: 20px !important;
    border-radius: 24px;
  }

  .tg-title {
    font-size: 21px;
  }

  #test-setup-modal {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
    background: rgba(15, 23, 42, 0.6) !important;
  }

  #test-setup-modal .test-setup-card {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    display: flex !important;
    flex-direction: column !important;
  }

  #test-setup-modal .test-setup-head {
    flex-shrink: 0 !important;
    padding: 22px 18px 18px !important;
    background: #fff !important;
  }

  .test-setup-title {
    font-size: 28px !important;
  }

  #test-setup-modal .test-setup-body {
    flex: 1 !important;
    overflow-y: auto !important;
    padding: 18px 16px 120px !important;
    background: #f8fafc !important;
  }

  .test-setup-summary,
  .test-setup-grid {
    grid-template-columns: 1fr;
  }

  #test-setup-modal .ts-row-source {
    grid-template-columns: 1fr;
  }

  #btnOpenTestWordSelector {
    width: 100% !important;
  }

  #test-setup-modal .test-setup-footer {
    position: sticky !important;
    bottom: 0 !important;
    z-index: 20 !important;
    flex-shrink: 0 !important;
    padding: 14px 16px 18px !important;
    background: #fff !important;
    box-shadow: 0 -18px 30px rgba(15, 23, 42, 0.08);
  }

  body.dark-theme #test-setup-modal .test-setup-head,
  body.dark-theme #test-setup-modal .test-setup-footer {
    background: #0f172a !important;
  }

  body.dark-theme #test-setup-modal .test-setup-body {
    background: #020617 !important;
  }
}