/* Gallery Header */
.gallery-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.gallery-header h1 {
  font-size: 2rem;
  margin-bottom: 0.3rem;
  color: var(--text);
}

.gallery-subtitle {
  font-size: 1.15rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.gallery-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Top Panel Row */
.top-panel-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  min-height: 280px;
}

/* Daily Info Ticker */
.daily-ticker {
  background: linear-gradient(135deg, #1877f2, #42a5f5);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.daily-ticker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: rgba(0,0,0,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.daily-ticker-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.daily-ticker-nav {
  display: flex;
  gap: 0.35rem;
}

.daily-ticker-nav button {
  background: rgba(255,255,255,0.15);
  border: none;
  color: white;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.daily-ticker-nav button:hover {
  background: rgba(255,255,255,0.3);
}

.daily-ticker-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.daily-ticker-track {
  display: flex;
  transition: transform 0.5s ease;
  height: 100%;
}

.daily-ticker-slide {
  min-width: 100%;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: white;
}

.daily-ticker-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.daily-ticker-content {
  flex: 1;
  min-width: 0;
}

.daily-ticker-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.75;
  margin-bottom: 0.2rem;
}

.daily-ticker-text {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.15rem;
}

.daily-ticker-sub {
  font-size: 0.78rem;
  opacity: 0.8;
  line-height: 1.4;
}

.daily-ticker-dots {
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.4rem 0 0.6rem;
}

.daily-ticker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.daily-ticker-dot.active {
  background: white;
  transform: scale(1.3);
}

/* Vocabulary Bot */
.vocab-bot {
  flex: 1;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.vocab-bot-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: linear-gradient(135deg, #1877f2, #42a5f5);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
}

.vocab-bot-controls {
  display: flex;
  gap: 0.4rem;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  align-items: center;
}

.vocab-select {
  padding: 0.35rem 0.5rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-family: inherit;
  outline: none;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  min-width: 0;
}

.vocab-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(24,119,242,0.12);
}

.vocab-category-chips {
  display: flex;
  gap: 0.25rem;
  padding: 0 0.75rem 0.4rem;
  flex-wrap: wrap;
}

.vocab-cat-chip {
  padding: 0.2rem 0.55rem;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface);
  color: var(--text-muted);
  transition: var(--transition);
}

.vocab-cat-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.vocab-cat-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.vocab-level-chips {
  display: flex;
  gap: 0.25rem;
  padding: 0 0.75rem 0.4rem;
  flex-wrap: wrap;
}

.vocab-chip {
  padding: 0.25rem 0.6rem;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  background: var(--surface);
  color: var(--text-muted);
  transition: var(--transition);
}

.vocab-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.vocab-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.vocab-display {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  gap: 0.5rem;
}

.vocab-word-tr {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}

.vocab-word-trans {
  font-size: 1.1rem;
  color: var(--primary);
  font-weight: 600;
  min-height: 1.4em;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.vocab-word-trans.hidden-answer {
  background: linear-gradient(135deg, var(--primary-light), #cce4ff);
  color: transparent;
  border-radius: var(--radius-sm);
  padding: 0.2rem 1.5rem;
}

.vocab-word-trans.hidden-answer:hover {
  background: linear-gradient(135deg, #cce4ff, #a8d4ff);
}

.vocab-word-example {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  font-style: italic;
  max-width: 90%;
}

.vocab-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
}

.vocab-btn {
  flex: 1;
  padding: 0.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

.vocab-btn-show {
  background: var(--primary-light);
  color: var(--primary);
  border: 1.5px solid #a8d4ff;
}

.vocab-btn-show:hover {
  background: #cce4ff;
}

.vocab-btn-next {
  background: var(--primary);
  color: white;
}

.vocab-btn-next:hover {
  background: var(--primary-dark);
}

/* Teacher Section */
.teacher-section {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
  overflow: hidden;
  border: 1px solid var(--border);
}

.teacher-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.teacher-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
  color: white;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.teacher-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.teacher-info {
  flex: 1;
  min-width: 0;
}

.teacher-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.teacher-role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.teacher-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.btn-free-chat {
  flex-shrink: 0;
  white-space: nowrap;
}

/* Topics Grid */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0;
}

.topic-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.topic-card:hover {
  background: var(--bg);
}

.topic-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
}

.topic-info {
  flex: 1;
  min-width: 0;
}

.topic-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.topic-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.topic-arrow {
  color: var(--text-light);
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.topic-card:hover .topic-arrow {
  color: var(--primary);
  transform: translateX(3px);
}

/* ===== Home Page ===== */
.home-page .daily-ticker {
  margin-bottom: 2rem;
  min-height: 160px;
  flex: none;
}

/* ===== Correction Section ===== */
.correction-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 12px rgba(24,119,242,0.12);
  border: 2px solid var(--primary);
  text-align: center;
}

.correction-header {
  margin-bottom: 0.75rem;
  text-align: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.correction-header h2 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.correction-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.correction-field {
  margin-bottom: 0.5rem;
}

.correction-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text);
  text-align: center;
}

.correction-field textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  resize: vertical;
  outline: none;
  transition: var(--transition);
  background: var(--surface);
  color: var(--text);
  text-align: center;
}

.correction-field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(24,119,242,0.12);
}

.correction-btn {
  width: 100%;
  padding: 0.7rem;
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.correction-result {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.correction-correct-box {
  background: #e8f5e9;
  border: 1.5px solid #a5d6a7;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-bottom: 0.75rem;
}

.correction-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.correction-correct-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: #2e7d32;
}

.correction-translation {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-style: italic;
}

.correction-score {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  margin-bottom: 0.75rem;
}

.correction-score.high { background: #e8f5e9; color: #2e7d32; }
.correction-score.mid { background: #fff8e1; color: #f57f17; }
.correction-score.low { background: #fce4ec; color: #c62828; }

.correction-score-num {
  font-size: 1.2rem;
}

.correction-praise {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.correction-mistakes {
  margin-top: 0.5rem;
}

.correction-mistake-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  border-left: 3px solid #ef5350;
}

.correction-mistake-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
}

.correction-wrong {
  text-decoration: line-through;
  color: #c62828;
  font-weight: 600;
  font-size: 0.95rem;
}

.correction-arrow {
  color: var(--text-muted);
  font-weight: 700;
}

.correction-right {
  color: #2e7d32;
  font-weight: 700;
  font-size: 0.95rem;
}

.correction-explanation {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.correction-perfect {
  text-align: center;
  padding: 1rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #2e7d32;
  background: #e8f5e9;
  border-radius: var(--radius-sm);
}

/* ===== Level Test ===== */
.level-test-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.level-test-header {
  margin-bottom: 1.25rem;
}

.level-test-header h2 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.level-test-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Level Test Lang Picker (shown on first question) */
.level-test-lang-picker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.level-test-lang-picker span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 0.25rem;
}

.level-test-lang-btn {
  padding: 0.35rem 0.7rem;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text);
}

.level-test-lang-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.level-test-lang-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.level-test-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.level-test-card-main {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--primary-light);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.level-test-card-main:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.level-test-card-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
}

.level-test-card-main .level-test-card-title {
  font-size: 1.05rem;
}

.level-test-card-main .level-test-card-desc {
  font-size: 0.85rem;
}

.level-test-levels-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.6rem;
}

.level-test-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 0.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.level-test-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.level-test-card-badge {
  display: inline-block;
  font-size: 1rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.4rem;
  color: white;
}

.level-test-card-badge.a1 { background: #059669; }
.level-test-card-badge.a2 { background: #65a30d; }
.level-test-card-badge.b1 { background: #ca8a04; }
.level-test-card-badge.b2 { background: #ea580c; }
.level-test-card-badge.c1 { background: #dc2626; }
.level-test-card-badge.c2 { background: #7c3aed; }

.level-test-card-title {
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}

.level-test-card-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.level-test-last {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

/* Level Test Results */
.level-test-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 1.5rem;
}

.level-test-mode-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.level-test-level-badge {
  background: var(--primary);
  color: white;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
}

.level-test-result-level {
  font-size: 4rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.level-test-result-message {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.level-test-breakdown {
  width: 100%;
  margin-top: 1.5rem;
  text-align: left;
}

.level-test-breakdown h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.level-test-breakdown-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.level-test-breakdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.level-test-breakdown-label {
  font-weight: 700;
  font-size: 0.9rem;
  width: 30px;
  flex-shrink: 0;
}

.level-test-breakdown-bar {
  flex: 1;
  height: 10px;
  background: var(--border);
  border-radius: 5px;
  overflow: hidden;
}

.level-test-breakdown-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.5s ease;
}

.level-test-breakdown-pct {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 35px;
  text-align: right;
  flex-shrink: 0;
}

.level-test-q-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: var(--border);
  color: var(--text-muted);
  margin-right: 0.3rem;
  vertical-align: middle;
}

/* Coming soon box */
.coming-soon-box {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-light);
}

.coming-soon-icon {
  font-size: 3.5rem;
  display: block;
  margin-bottom: 1rem;
}

.coming-soon-box p {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .top-panel-row {
    flex-direction: column;
    min-height: auto;
  }

  .daily-ticker,
  .vocab-bot {
    min-height: 220px;
  }

  .daily-ticker-slide {
    padding: 0.75rem 1rem;
  }

  .daily-ticker-icon {
    width: 38px;
    height: 38px;
    font-size: 1.3rem;
  }

  .daily-ticker-text {
    font-size: 0.85rem;
  }

  .vocab-word-tr {
    font-size: 1.3rem;
  }

  .teacher-header {
    flex-direction: column;
    text-align: center;
  }

  .btn-free-chat {
    width: 100%;
  }

  .topics-grid {
    grid-template-columns: 1fr;
  }

  .topic-card {
    border-right: none;
  }

  .gallery-header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 600px) {
  .level-test-levels-row {
    grid-template-columns: repeat(3, 1fr);
  }
}