/* =========================
   Dictation Exercise Styles
   Modern Design with Dark/Light Theme Support
   Uses Design System Semantic Tokens
   ========================= */

/* ===== MAIN CONTAINER ===== */
.dictation-card {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Keep dictation height consistent with transcript */
.df-dictation-shell {
  min-height: 520px;
  width: 100%;
  background: var(--bg-surface);
  border-radius: 16px;
  border: 1px solid var(--border-default);
}

/* ===== HEADER ===== */
.dictation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.dictation-back-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.dictation-back-link:hover {
  color: var(--action-primary);
}

.dictation-back-link svg {
  width: 20px;
  height: 20px;
}

.dictation-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* ===== TABS ===== */
.df-tab-container {
  display: flex;
  gap: 0.5rem;
  padding: 0.375rem;
  background: var(--bg-interactive);
  border-radius: 12px;
  width: fit-content;
}

.tab-btn {
  position: relative;
  padding: 0.625rem 1.25rem;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all 0.2s ease;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.tab-btn.active {
  color: var(--action-primary-text);
  background: var(--action-primary);
  box-shadow: var(--shadow-primary);
}

/* ===== TRANSCRIPT TWO-COLUMN LAYOUT ===== */
.df-transcript-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  min-height: 520px;
}

@media (min-width: 1024px) {
  .df-transcript-layout {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== AUDIO VISUALIZER ===== */
.audio-visualizer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 48px;
}

.audio-visualizer .bar {
  width: 5px;
  background: linear-gradient(to top, var(--action-primary), var(--action-primary-hover));
  border-radius: 3px;
  animation: pulse 0.8s ease-in-out infinite;
}

.audio-visualizer .bar:nth-child(1) { height: 24px; animation-delay: 0s; }
.audio-visualizer .bar:nth-child(2) { height: 36px; animation-delay: 0.1s; }
.audio-visualizer .bar:nth-child(3) { height: 48px; animation-delay: 0.2s; }
.audio-visualizer .bar:nth-child(4) { height: 36px; animation-delay: 0.3s; }
.audio-visualizer .bar:nth-child(5) { height: 24px; animation-delay: 0.4s; }

@keyframes pulse {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}

.audio-visualizer.paused .bar {
  animation: none;
  opacity: 0.25;
  transform: scaleY(0.25);
}

/* ===== TRANSCRIPT LIST ===== */
.transcript-list-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  overflow: hidden;
}

.transcript-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-interactive);
}

.transcript-list-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.transcript-list-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  background: var(--action-primary-subtle);
  color: var(--action-primary);
  border-radius: 20px;
  font-weight: 600;
}

.transcript-item {
  transition: all 0.15s ease;
  border-radius: 0;
  cursor: pointer;
  border-bottom: 1px solid var(--border-subtle);
}

.transcript-item:last-child {
  border-bottom: none;
}

.transcript-item-inner {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
}

.transcript-item:hover {
  background: var(--bg-interactive-hover);
}

.transcript-item.active {
  background: var(--action-primary-subtle);
}

.transcript-item.active .transcript-text {
  color: var(--action-primary);
  font-weight: 600;
}

.transcript-play-btn {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-interactive);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  opacity: 0.7;
  transform: scale(0.9);
  transition: all 0.15s ease;
}

.transcript-item:hover .transcript-play-btn {
  opacity: 1;
  transform: scale(1);
}

.transcript-item.active .transcript-play-btn {
  background: var(--action-primary);
  color: var(--action-primary-text);
  opacity: 1;
  transform: scale(1);
}

.transcript-play-btn:hover {
  background: var(--action-primary);
  color: var(--action-primary-text);
  transform: scale(1.1);
}

.transcript-play-btn svg {
  width: 14px;
  height: 14px;
}

.transcript-text {
  flex: 1;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  user-select: text;
}

/* ===== EXERCISE APP CONTAINER ===== */
#exercise-app {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
}

/* ===== INPUT AREA ===== */
.dictation-input-area {
  margin-bottom: 1.5rem;
}

.dictation-textarea {
  width: 100%;
  min-height: 120px;
  padding: 1rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  border-radius: 12px;
  resize: none;
  transition: all 0.15s ease;
}

.dictation-textarea:focus {
  outline: none;
  border-color: var(--input-border-focus);
  box-shadow: var(--focus-ring);
}

.dictation-textarea::placeholder {
  color: var(--input-placeholder);
}

/* ===== CONTROL BUTTONS ===== */
.dictation-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dictation-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  border: none;
}

.dictation-btn svg {
  width: 18px;
  height: 18px;
}

.dictation-btn--primary {
  background: var(--action-primary);
  color: var(--action-primary-text);
}

.dictation-btn--primary:hover {
  background: var(--action-primary-hover);
  box-shadow: var(--shadow-primary);
  transform: translateY(-1px);
}

.dictation-btn--secondary {
  background: var(--bg-interactive);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}

.dictation-btn--secondary:hover {
  background: var(--bg-interactive-hover);
  color: var(--text-primary);
}

.dictation-btn--success {
  background: var(--status-success);
  color: #fff;
}

.dictation-btn--success:hover {
  filter: brightness(1.1);
}

/* Speed select */
.dictation-speed-select {
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  cursor: pointer;
  min-width: 80px;
}

.dictation-speed-select:focus {
  outline: none;
  border-color: var(--input-border-focus);
}

/* ===== FEEDBACK AREA ===== */
.dictation-feedback {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border-radius: 12px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.dictation-feedback--correct {
  background: var(--status-success-subtle);
  border: 1px solid var(--status-success-border);
}

.dictation-feedback--wrong {
  background: var(--status-error-subtle);
  border: 1px solid var(--status-error-border);
}

/* ===== DIFF FEEDBACK STYLES ===== */
.diff-result {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
}

.diff-result--correct {
  color: var(--status-success-text);
}

.diff-result--wrong {
  color: var(--status-error-text);
}

.diff-answer {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.6;
}

.diff-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 0.5rem;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  line-height: 1.8;
}

.diff-correct {
  color: var(--status-success-text);
  font-weight: 500;
}

.diff-wrong {
  color: var(--status-error-text);
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  opacity: 0.7;
  margin-right: 2px;
}

.diff-expected {
  color: var(--status-info-text);
  font-weight: 600;
  background: var(--status-info-subtle);
  padding: 1px 4px;
  border-radius: 3px;
}

/* Legacy diff styles */
del {
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  background: var(--status-error-subtle);
  color: var(--status-error-text);
  padding: 0 3px;
  border-radius: 3px;
}

ins {
  text-decoration: none;
  background: var(--status-success-subtle);
  color: var(--status-success-text);
  padding: 0 3px;
  border-radius: 3px;
  font-weight: 600;
}

/* ===== PROGRESS BAR ===== */
.dictation-progress {
  margin-bottom: 1.5rem;
}

.dictation-progress-bar {
  height: 8px;
  background: var(--progress-track);
  border-radius: 4px;
  overflow: hidden;
}

.dictation-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--action-primary), var(--action-accent));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.dictation-progress-text {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ===== SETTINGS PANEL ===== */
#dict-settings-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-interactive);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

#dict-settings-btn:hover {
  background: var(--bg-interactive-hover);
  color: var(--text-primary);
}

#dict-settings-btn svg {
  width: 18px;
  height: 18px;
}

#dict-settings-panel {
  position: absolute;
  top: 3.5rem;
  right: 1rem;
  width: 280px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  z-index: 50;
  overflow: hidden;
}

.dict-settings-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-interactive);
}

.dict-settings-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.dict-settings-body {
  padding: 1rem;
}

.dict-setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0;
}

.dict-setting-row:not(:last-child) {
  border-bottom: 1px solid var(--border-subtle);
}

.dict-setting-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.dict-setting-input {
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 0.375rem 0.5rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  min-width: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
}

.dict-setting-input:focus {
  outline: none;
  border-color: var(--input-border-focus);
}

/* ===== TRANSCRIPT PLAYER PANEL ===== */
.transcript-player {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: 1.5rem;
}

.transcript-player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.transcript-play-main {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--action-primary);
  color: var(--action-primary-text);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-primary);
}

.transcript-play-main:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(var(--action-primary), 0.4);
}

.transcript-play-main.playing {
  animation: pulse-glow 1.5s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 15px var(--shadow-primary); }
  50% { box-shadow: 0 4px 25px var(--shadow-primary); }
}

/* Transcript progress bar */
.transcript-progress-container {
  position: relative;
  height: 6px;
  background: rgba(255,255,255,0.15);
  border-radius: 3px;
  cursor: pointer;
}

.transcript-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--action-primary), var(--action-accent));
  border-radius: 3px;
  transition: width 0.1s linear;
}

.transcript-play-main svg {
  width: 24px;
  height: 24px;
}

.transcript-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-interactive);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.transcript-nav-btn:hover {
  background: var(--bg-interactive-hover);
  color: var(--text-primary);
}

.transcript-nav-btn svg {
  width: 18px;
  height: 18px;
}

/* Progress bar */
.transcript-progress-container {
  position: relative;
  height: 6px;
  background: var(--progress-track);
  border-radius: 3px;
  cursor: pointer;
  margin-bottom: 0.75rem;
}

.transcript-progress-bar {
  height: 100%;
  background: var(--action-primary);
  border-radius: 3px;
  transition: width 0.1s linear;
}

.transcript-time {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

/* ===== CUSTOM SCROLLBAR ===== */
.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: var(--bg-interactive);
  border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ===== SUMMARY SCREEN ===== */
#summary-screen {
  text-align: center;
  padding: 3rem 1.5rem;
}

.summary-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--status-success-subtle);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--status-success);
}

.summary-icon svg {
  width: 40px;
  height: 40px;
}

.summary-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.summary-score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--action-primary);
  margin: 1rem 0;
}

.summary-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ===== HINT TEXT ===== */
.dictation-hint {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-interactive);
  border-radius: 8px;
  border-left: 3px solid var(--action-accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .dictation-card {
    padding: 0 0.5rem;
  }
  
  .df-tab-container {
    width: 100%;
  }
  
  .tab-btn {
    flex: 1;
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    text-align: center;
  }
  
  .transcript-item-inner {
    padding: 0.75rem 1rem;
  }
  
  .transcript-play-btn {
    width: 28px;
    height: 28px;
  }
  
  .transcript-text {
    font-size: 0.875rem;
  }
  
  #exercise-app {
    padding: 1.25rem;
  }
  
  .dictation-controls {
    flex-direction: column;
  }
  
  .dictation-btn {
    width: 100%;
  }
}

/* ===== EXPLICIT BUTTON VISIBILITY FIXES ===== */
/* Ensure buttons are always visible with proper contrast */

.dictation-btn--primary {
  background: #14b8a6 !important;
  color: #ffffff !important;
}

.dictation-btn--primary:hover {
  background: #0d9488 !important;
}

.dictation-btn--secondary {
  background: #f1f5f9 !important;
  color: #334155 !important;
  border: 1px solid #cbd5e1 !important;
}

.dictation-btn--secondary:hover {
  background: #e2e8f0 !important;
  color: #1e293b !important;
}

.dictation-btn--success {
  background: #10b981 !important;
  color: #ffffff !important;
}

.dictation-speed-select {
  background: #ffffff !important;
  color: #1e293b !important;
  border: 1px solid #cbd5e1 !important;
}

/* Tab buttons - ensure visibility */
.tab-btn {
  color: #64748b;
  background: transparent;
}

.tab-btn.active {
  color: #ffffff !important;
  background: #14b8a6 !important;
}

/* Navigation buttons on dark background */
.transcript-nav-btn {
  background: rgba(255, 255, 255, 0.15) !important;
  color: rgba(255, 255, 255, 0.9) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.transcript-nav-btn:hover {
  background: rgba(255, 255, 255, 0.25) !important;
  color: #ffffff !important;
}

/* Dark Mode Overrides */
@media (prefers-color-scheme: dark) {
  .dictation-btn--secondary {
    background: #334155 !important;
    color: #e2e8f0 !important;
    border-color: #475569 !important;
  }
  
  .dictation-btn--secondary:hover {
    background: #475569 !important;
    color: #f1f5f9 !important;
  }
  
  .dictation-speed-select {
    background: #1e293b !important;
    color: #e2e8f0 !important;
    border-color: #475569 !important;
  }
  
  .tab-btn {
    color: #94a3b8;
  }
  
  .tab-btn:hover {
    color: #e2e8f0;
    background: #334155;
  }
  
  .tab-btn.active {
    color: #ffffff !important;
    background: #14b8a6 !important;
  }
  
  .dictation-textarea {
    background: #1e293b !important;
    color: #e2e8f0 !important;
    border-color: #475569 !important;
  }
  
  .dictation-textarea::placeholder {
    color: #64748b !important;
  }
  
  .dictation-textarea:focus {
    border-color: #14b8a6 !important;
  }
  
  .dict-setting-input {
    background: #1e293b !important;
    color: #e2e8f0 !important;
    border-color: #475569 !important;
  }
  
  /* Progress text visibility */
  #progress-text {
    color: #94a3b8 !important;
  }
  
  /* Hint text */
  .dictation-hint {
    background: #334155;
    color: #cbd5e1;
  }
  
  /* Summary screen */
  .summary-title {
    color: #f1f5f9;
  }
  
  .summary-desc {
    color: #94a3b8;
  }
}

/* Ensure dark theme class also works */
.dark .dictation-btn--secondary,
[data-theme="dark"] .dictation-btn--secondary {
  background: #334155 !important;
  color: #e2e8f0 !important;
  border-color: #475569 !important;
}

.dark .dictation-btn--secondary:hover,
[data-theme="dark"] .dictation-btn--secondary:hover {
  background: #475569 !important;
  color: #f1f5f9 !important;
}

.dark .dictation-speed-select,
[data-theme="dark"] .dictation-speed-select {
  background: #1e293b !important;
  color: #e2e8f0 !important;
  border-color: #475569 !important;
}

.dark .tab-btn,
[data-theme="dark"] .tab-btn {
  color: #94a3b8;
}

.dark .tab-btn.active,
[data-theme="dark"] .tab-btn.active {
  color: #ffffff !important;
  background: #14b8a6 !important;
}

.dark .dictation-textarea,
[data-theme="dark"] .dictation-textarea {
  background: #1e293b !important;
  color: #e2e8f0 !important;
  border-color: #475569 !important;
}