/* ==========================================================================
   Text to SRT - Modern SaaS Design System & Styles
   ========================================================================== */

:root {
  /* Color Palette - Modern Indigo & Slate Theme */
  --bg-app: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #fbfcfe;
  --bg-subtle: #f1f5f9;
  --bg-active: #e2e8f0;
  
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #6366f1;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-border: #c7d2fe;
  --primary-text: #ffffff;

  --accent-teal: #0d9488;
  --accent-teal-bg: #f0fdfa;

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;

  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #b45309;

  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --success-text: #15803d;

  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Fira Code', Menlo, Consolas, Monaco, monospace;

  --transition: all 0.15s ease-in-out;
}

/* Base Resets */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Application Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1600px;
  margin: 0 auto;
}

/* ==========================================================================
   Header Component
   ========================================================================== */
.app-header {
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Language Selector */
.lang-selector-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0 8px 0 10px;
  height: 34px;
  gap: 6px;
  transition: var(--transition);
}

.lang-selector-wrap:hover {
  border-color: var(--border-hover);
  background-color: #ffffff;
}

.lang-icon {
  color: var(--primary);
  flex-shrink: 0;
}

.lang-select {
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  outline: none;
  padding: 4px 4px 4px 0;
}

.lang-select option {
  background-color: #ffffff;
  color: var(--text-primary);
  font-weight: 500;
}

.history-controls {
  display: flex;
  align-items: center;
  background-color: var(--bg-subtle);
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  margin-right: 4px;
}

/* ==========================================================================
   Buttons & Controls
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-text);
  border-color: var(--primary);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-subtle);
  border-color: var(--border-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
  border-color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-hover);
}

.text-danger {
  color: var(--danger) !important;
}

.text-danger:hover:not(:disabled) {
  background-color: var(--danger-bg) !important;
}

/* ==========================================================================
   Main Workspace Panels
   ========================================================================== */
.main-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - 64px);
}

.panel {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  overflow: hidden;
}

/* Left Panel (~35%) */
.panel-source {
  width: 380px;
  min-width: 320px;
  max-width: 440px;
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 20px;
  gap: 16px;
  background-color: #ffffff;
}

/* Right Panel (~65%) */
.panel-cues {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-app);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary-border);
}

.panel-heading {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   Source Tabs & Textarea
   ========================================================================== */
.source-tabs {
  display: flex;
  background-color: var(--bg-subtle);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active {
  background-color: #ffffff;
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.tab-panes {
  display: flex;
  flex-direction: column;
}

.tab-pane {
  display: flex;
  flex-direction: column;
}

.tab-pane[hidden] {
  display: none !important;
}

.textarea-wrapper {
  position: relative;
}

.source-textarea {
  width: 100%;
  height: 230px;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  resize: vertical;
  min-height: 140px;
  max-height: 480px;
  outline: none;
  transition: var(--transition);
}

.source-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.source-textarea::placeholder {
  color: var(--text-light);
  line-height: 1.6;
}

/* Drop Zone for Upload */
.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 16px;
  text-align: center;
  background-color: var(--bg-app);
  cursor: pointer;
  transition: var(--transition);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.file-input-hidden {
  display: none;
}

.drop-zone-icon {
  color: var(--primary);
  margin-bottom: 8px;
}

.drop-zone-text {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.drop-zone-text strong {
  color: var(--primary);
}

.drop-zone-subtext {
  font-size: 11px;
  color: var(--text-muted);
}

/* File Info Card */
.file-info-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-top: 8px;
}

.file-info-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
}

.file-info-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.file-info-label {
  font-size: 10px;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.file-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-remove-file {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
}

.btn-remove-file:hover {
  background-color: var(--danger-bg);
  color: var(--danger);
}

/* Stats Bar */
.stats-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 8px 12px;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  color: var(--text-muted);
}

.stat-dot {
  color: var(--border-hover);
  font-size: 10px;
}

/* ==========================================================================
   Settings Section
   ========================================================================== */
.settings-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 4px;
}

.section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* Segmented Control */
.segmented-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background-color: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.segmented-option {
  position: relative;
  cursor: pointer;
}

.segmented-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segment-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-align: center;
}

.segmented-option input[type="radio"]:checked + .segment-label {
  background-color: #ffffff;
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* Form Controls */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.helper-badge {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background-color: var(--bg-subtle);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

.input-with-suffix {
  position: relative;
  display: flex;
  align-items: center;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  padding-right: 75px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

select.form-control.select-control {
  padding-right: 12px;
  cursor: pointer;
  background-color: #ffffff;
}

.input-suffix {
  position: absolute;
  right: 12px;
  font-size: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-hint {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }

/* Checkbox Option */
.checkbox-option {
  background-color: var(--bg-app);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.custom-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.custom-checkbox-label input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--primary);
}

.checkbox-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: 12px;
}

.checkbox-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.checkbox-text small {
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.3;
}

/* Advanced Accordion */
.advanced-accordion {
  background-color: var(--bg-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.advanced-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.advanced-summary::-webkit-details-marker {
  display: none;
}

.summary-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chevron-icon {
  transition: transform 0.2s ease;
}

.advanced-accordion[open] .chevron-icon {
  transform: rotate(90deg);
}

.summary-badge {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: normal;
}

.advanced-content {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--border-color);
  background-color: #ffffff;
}

.grid-2-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Error Banner */
.error-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-sm);
  color: var(--danger-text);
  font-size: 12px;
  font-weight: 500;
}

/* Generate Button */
.generate-action-wrap {
  margin-top: 4px;
}

.btn-generate {
  width: 100%;
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.btn-generate:hover:not(:disabled) {
  background: linear-gradient(135deg, #4338ca, #4f46e5);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Privacy Notice */
.privacy-notice {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 4px 0;
}

/* ==========================================================================
   Right Panel - Output & Cues Header
   ========================================================================== */
.cues-header-bar {
  padding: 16px 28px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.cues-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cue-counter-pill {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--primary-border);
}

.view-switch-tabs {
  display: flex;
  background-color: var(--bg-subtle);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.view-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.view-tab.active {
  background-color: #ffffff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

/* Summary Ribbon */
.summary-ribbon {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 28px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  flex-wrap: wrap;
}

.summary-chip {
  display: flex;
  align-items: center;
  gap: 6px;
}

.summary-num {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 14px;
}

.summary-num.highlight {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.summary-lbl {
  color: var(--text-muted);
  font-size: 12px;
}

.chip-divider {
  width: 1px;
  height: 16px;
  background-color: var(--border-color);
}

/* ==========================================================================
   Cues Content Container & Views
   ========================================================================== */
.cues-content-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  background-color: #f8fafc;
}

.cues-pane {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.cues-pane[hidden] {
  display: none !important;
}

/* Toolbar */
.cues-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 4px;
}

.toolbar-right-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Validation Warning Banner */
.validation-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-md);
  color: var(--warning-text);
  font-size: 13px;
  font-weight: 500;
}

.validation-msg-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Cues List & Cards */
.cues-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cue-card {
  display: flex;
  flex-direction: column;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  position: relative;
}

.cue-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
}

.cue-card.dragging {
  opacity: 0.4;
  border: 2px dashed var(--primary);
}

.cue-card.drag-over-top {
  border-top: 3px solid var(--primary);
}

.cue-card.drag-over-bottom {
  border-bottom: 3px solid var(--primary);
}

.cue-card.has-error {
  border-color: var(--danger-border);
  background-color: #fffdfd;
}

.cue-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background-color: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  gap: 12px;
  flex-wrap: wrap;
}

.cue-card-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.drag-handle {
  color: #94a3b8;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.drag-handle:hover {
  background-color: #e2e8f0;
  color: var(--text-primary);
}

.drag-handle:active {
  cursor: grabbing;
}

.cue-number-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary-border);
  letter-spacing: 0.02em;
}

.cue-timing-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}

.time-input {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding: 5px 10px;
  width: 124px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: #1e293b;
  text-align: center;
  outline: none;
  letter-spacing: 0.02em;
  transition: var(--transition);
}

.time-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.time-input.is-invalid {
  border-color: var(--danger);
  background-color: var(--danger-bg);
  color: var(--danger-text);
}

.time-arrow {
  color: #94a3b8;
  font-size: 14px;
  font-weight: 600;
}

.cue-duration-badge {
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: #475569;
  background-color: #ffffff;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.cue-card-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cue-action-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.cue-action-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.cue-action-btn.delete {
  color: #64748b;
}

.cue-action-btn.delete:hover {
  background-color: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.cue-card-body {
  padding: 14px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-color: #ffffff;
}

.cue-textarea {
  width: 100%;
  min-height: 64px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.65;
  color: #0f172a;
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  outline: none;
  padding: 6px 8px;
  margin: -6px -8px;
  resize: none;
  overflow-y: hidden;
  transition: var(--transition);
}

.cue-textarea:hover {
  background-color: #f8fafc;
  border-color: #e2e8f0;
}

.cue-textarea:focus {
  border-color: var(--border-focus);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.cue-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 6px;
  border-top: 1px dashed #f1f5f9;
}

.cue-char-count {
  font-size: 11px;
  font-weight: 500;
  color: #64748b;
  background-color: #f1f5f9;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.cue-error-msg {
  color: var(--danger-text);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background-color: #ffffff;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  margin: auto 0;
}

.empty-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.empty-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.empty-desc {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 440px;
  line-height: 1.5;
  margin-bottom: 20px;
}

.empty-sample-action {
  display: flex;
  gap: 8px;
}

/* Bottom Add Wrap */
.bottom-add-wrap {
  margin-top: 14px;
  margin-bottom: 24px;
}

/* ==========================================================================
   Raw SRT View
   ========================================================================== */
.raw-srt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md) var(--radius-md) 0 0;

  border-bottom: none;
}

.raw-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.raw-sync-status {
  font-size: 11px;
  color: var(--accent-teal);
  background-color: var(--accent-teal-bg);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.raw-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.raw-srt-textarea {
  width: 100%;
  flex: 1;
  min-height: 480px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: #1e293b;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  resize: vertical;
  outline: none;
  box-shadow: var(--shadow-xs);
}

.raw-srt-textarea:focus {
  border-color: var(--border-focus);
}

/* ==========================================================================
   Modal Dialog
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 440px;
  width: 90%;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: modalPop 0.15s ease-out;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 110;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: slideIn 0.2s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast-success {
  background-color: #0f172a;
  color: #ffffff;
}

.toast-error {
  background-color: var(--danger);
  color: #ffffff;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .panel-source {
    width: 340px;
  }
}

@media (max-width: 820px) {
  .main-workspace {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }

  .panel-source {
    width: 100%;
    max-width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .panel-cues {
    min-height: 500px;
  }

  .app-header {
    height: auto;
    padding: 12px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }
}