/* ============================================================
   Neon Glass — Audiobook Generator
   Exact design from neon.html mockup
   ============================================================ */

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

a, button, input, select, textarea { touch-action: manipulation; }

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 12px 20px;
  background: var(--cyan);
  color: var(--bg);
  font-weight: 700;
  z-index: 10000;
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
  transition: top .2s;
}
.skip-link:focus {
  top: 0;
}

:root {
  --bg: #08081a;
  --surface: rgba(255,255,255,.04);
  --surface-hover: rgba(255,255,255,.07);
  --border: rgba(255,255,255,.08);
  --border-hover: rgba(255,255,255,.15);
  --cyan: #00e5ff;
  --magenta: #ff2daa;
  --violet: #8b5cf6;
  --cyan-glow: rgba(0,229,255,.12);
  --magenta-glow: rgba(255,45,170,.12);
  --text: #e8e8f0;
  --text-dim: #b8b7cc;
  --radius: 16px;
  --radius-sm: 10px;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background:
    radial-gradient(circle at 30% 20%, rgba(139,92,246,.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(0,229,255,.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255,45,170,.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  animation: bgShift 20s ease-in-out infinite alternate;
}
@keyframes bgShift {
  0% { transform: translate(0,0) rotate(0deg); }
  100% { transform: translate(-5%,3%) rotate(3deg); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.app {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

/* Header */
.header {
  margin-bottom: 32px;
}
.header-top {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-top h1 {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  flex: 1;
}
.header > p {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 4px;
  font-weight: 300;
}
.tagline {
  font-size: 14px;
  color: var(--text);
  opacity: .7;
  margin-top: 8px;
  font-weight: 400;
}

/* Quick Start Guide */
.quick-guide {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.quick-guide b { color: var(--cyan); font-weight: 700; }
.quick-guide-sep { color: rgba(255,255,255,.15); font-size: 11px; }

.settings-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  transition: all .2s;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.settings-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.settings-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}


/* Glass cards */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .2s, box-shadow .2s;
}
.glass:hover { border-color: var(--border-hover); }
.glass-glow {
  background: rgba(15,15,42,.92);
  box-shadow: 0 0 40px rgba(139,92,246,.1);
}

/* Config hint */
.config-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 8px;
  padding: 8px;
  background: rgba(255,200,0,.05);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,200,0,.15);
}
.config-hint:empty { display: none; }
.advanced-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  margin-top: 8px;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.02);
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.advanced-toggle:hover {
  border-color: rgba(255,255,255,.1);
  color: var(--text);
}
.advanced-arrow {
  transition: transform .2s;
  font-size: 10px;
}
.advanced-arrow.open { transform: rotate(180deg); }
.advanced-section {
  margin-top: 4px;
  padding-top: 4px;
}
.advanced-section.hidden { display: none; }
.modal select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236a6888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* Neon button (Save Key) */
.btn-neon {
  padding: 10px 18px;
  border: 1px solid rgba(0,229,255,.3);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0,229,255,.15), rgba(139,92,246,.15));
  color: var(--cyan);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .15s;
}
.btn-neon:hover {
  background: linear-gradient(135deg, rgba(0,229,255,.25), rgba(139,92,246,.25));
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,229,255,.15);
}

/* Text area */
.text-area { margin-bottom: 20px; }
.text-area-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.text-area-header h3 { font-size: 16px; font-weight: 600; }
.text-area-header span { font-size: 12px; color: var(--text-dim); }
.text-area textarea {
  width: 100%;
  min-height: 160px;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text);
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 14px;
  line-height: 2;
  resize: vertical;
  outline: none;
  transition: border-color .2s;
}
.text-area textarea:focus { border-color: var(--cyan); }
.text-area textarea::placeholder { color: var(--text-dim); }
.format-hint {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 6px;
  margin-bottom: 0;
  opacity: .8;
}
.story-status {
  font-size: 12px;
  color: var(--text-dim);
}
.credit-hint {
  font-size: 12px;
  color: var(--text-dim);
  opacity: .6;
  margin-top: 4px;
}
.segment-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.btn-clear {
  border-color: var(--border);
  color: var(--text-dim);
  background: var(--surface);
}
.segments-header {
  margin-top: 20px;
}
.retry-btn {
  margin-top: 12px;
}

/* AI Story section (inside text-area) */
.ai-story-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.ai-story-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.ai-story-input-row input {
  flex: 1;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.ai-story-input-row input:focus { border-color: var(--cyan); }
.btn-sm {
  padding: 10px 14px;
  border: 1px solid rgba(0,229,255,.3);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0,229,255,.15), rgba(139,92,246,.15));
  color: var(--cyan);
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.btn-sm:hover {
  background: linear-gradient(135deg, rgba(0,229,255,.25), rgba(139,92,246,.25));
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,229,255,.15);
}

/* Section labels */
.section-label {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

/* Characters */
.char-section { margin-bottom: 20px; }
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}
.char-hint {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 12px;
  margin-bottom: 4px;
}
.char-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  transition: all .2s;
}
.char-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.char-card.narrator {
  border-color: rgba(0,229,255,.2);
  background: linear-gradient(135deg, rgba(0,229,255,.03), rgba(139,92,246,.03));
}
.char-card.selected {
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,229,255,.2);
}
.char-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.char-name {
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.char-badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}
.char-badge.narrator-badge { background: var(--cyan-glow); color: var(--cyan); }
.char-badge.dialogue-badge { background: var(--magenta-glow); color: var(--magenta); }

/* Preset badge in character cards */
.preset-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin: 6px 0 2px;
  background: rgba(168,85,247,.12);
  color: #c084fc;
  border: 1px solid rgba(168,85,247,.25);
}
.preset-indicator.narrator-preset {
  background: rgba(34,197,94,.12);
  color: #4ade80;
  border-color: rgba(34,197,94,.25);
}
.preset-indicator.custom-preset {
  background: rgba(255,255,255,.05);
  color: var(--text-dim);
  border-color: var(--border);
}

/* Voice preview button */
.char-preset-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0 2px;
}
.char-preset-row .preset-indicator {
  margin: 0;
}
.voice-preview-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: rgba(0,229,255,.1);
  color: var(--cyan);
  font-size: 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .15s;
}
.voice-preview-btn:hover {
  background: rgba(0,229,255,.25);
  box-shadow: 0 0 12px rgba(0,229,255,.2);
}
.voice-preview-btn.playing {
  background: rgba(255,45,170,.15);
  color: var(--magenta);
  animation: previewPulse 1.5s infinite;
}
@keyframes previewPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(255,45,170,.3); }
  50% { box-shadow: 0 0 0 6px rgba(255,45,170,0); }
}

.char-textarea {
  width: 100%;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  resize: vertical;
  min-height: 48px;
  outline: none;
  transition: border-color .2s;
}
.char-textarea:focus { border-color: var(--cyan); }
.char-textarea::placeholder { color: var(--text-dim); opacity: .5; }

/* Presets */
.preset-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.preset-btn {
  padding: 10px 14px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: all .2s;
  font-weight: 500;
}
.preset-btn:hover {
  border-color: var(--magenta);
  color: var(--magenta);
  background: var(--magenta-glow);
}
.preset-btn.active {
  background: linear-gradient(135deg, rgba(0,229,255,.15), rgba(139,92,246,.15));
  border-color: var(--cyan);
  color: var(--cyan);
}
.preset-more-btn {
  padding: 10px 14px;
  min-height: 44px;
  border: 1px dashed var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: all .2s;
}
.preset-more-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.preset-hidden {
  display: none;
  margin-top: 8px;
}
.preset-hidden.show {
  display: flex;
}

/* Generate button */
.gen-row { display: flex; gap: 8px; margin-bottom: 24px; margin-top: 16px; }
.btn-cancel {
  background: rgba(255,100,100,.15);
  border-color: rgba(255,100,100,.3);
  color: #ff6b6b;
}
.gen-btn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  color: white;
  background: linear-gradient(135deg, var(--cyan), var(--violet), var(--magenta));
  background-size: 200% 200%;
  animation: gradShift 3s ease infinite;
  animation-play-state: paused;
  transition: transform .15s, box-shadow .15s;
}
.gen-btn.animate { animation-play-state: running; }
.gen-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,229,255,.25), 0 4px 16px rgba(139,92,246,.2);
}
.gen-btn:active { transform: translateY(0); }
.gen-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; animation-play-state: paused; }
.gen-btn:disabled:hover { transform: none; box-shadow: none; }
@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.gen-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  transform: translateX(-100%);
  transition: transform .6s;
}
.gen-btn:hover::after { transform: translateX(100%); }

/* Progress */
.progress-text { font-size: 13px; color: var(--text-dim); margin-bottom: 8px; }
.progress-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 20px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 2px;
  width: 0%;
  transition: width .3s;
}

/* Player */
.player-section { margin-top: 4px; }

/* Story Reader */
.story-reader {
  padding: 20px;
  margin-bottom: 12px;
}
.story-reader-now-playing {
  font-size: 12px;
  color: var(--text-dim);
  padding: 4px 0 8px;
  opacity: .7;
}
.story-reader-text-display {
  font-size: 20px;
  line-height: 1.8;
  min-height: 100px;
  padding: 16px;
  background: rgba(0,0,0,.2);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.04);
  max-height: 400px;
  overflow-y: auto;
}
.story-reader-speaker-label {
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  margin-right: 4px;
}
.story-reader-char {
  display: inline;
  transition: color 0.15s ease, text-shadow 0.15s ease;
  padding: 2px 0;
  border-radius: 3px;
}
.story-reader-char.spoken {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(0,229,255,.2);
}
.story-reader-char.current {
  color: #fff;
  text-shadow: 0 0 12px rgba(255,255,255,.4);
  background: rgba(0,229,255,.15);
  padding: 2px 4px;
}
.story-reader-char.unspoken {
  color: #9e9db5;
}

/* ==================== PLAYER TOPBAR ==================== */
.player-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  position: relative;
}
.player-topbar-play {
  background: rgba(0,229,255,.15);
  border: 1px solid rgba(0,229,255,.3);
  color: var(--cyan);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .15s;
}
.player-topbar-play:hover {
  background: rgba(0,229,255,.25);
  transform: scale(1.05);
}
.player-topbar-play.playing {
  background: rgba(255,45,170,.15);
  border-color: rgba(255,45,170,.3);
  color: var(--magenta);
}
.player-topbar-progress {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,.08);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}
.player-topbar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 2px;
  transition: width 0.1s linear;
  pointer-events: none;
}
.player-topbar-time {
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  min-width: 70px;
  text-align: right;
}
.player-topbar-menu {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: var(--text-dim);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .15s;
  letter-spacing: 2px;
}
.player-topbar-menu:hover {
  border-color: rgba(0,229,255,.3);
  color: var(--cyan);
}

/* Dropdown Menu */
.player-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 220px;
  background: rgba(22,22,48,.98);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 8px;
  z-index: 100;
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.player-menu.open { display: block; }
.player-menu-section {
  padding: 6px 0;
}
.player-menu-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .5px;
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.player-menu-pills {
  display: flex;
  gap: 4px;
}
.player-menu-pill {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: var(--text-dim);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.player-menu-pill:hover {
  border-color: rgba(0,229,255,.3);
  color: var(--text);
}
.player-menu-pill.active {
  background: rgba(0,229,255,.12);
  border-color: rgba(0,229,255,.3);
  color: var(--cyan);
}
.player-menu-volume {
  display: flex;
  align-items: center;
  gap: 8px;
}
.player-menu-vol-icon {
  font-size: 14px;
  cursor: pointer;
  color: var(--text-dim);
}
.player-menu-vol-slider {
  -webkit-appearance: none;
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,.15);
  border-radius: 2px;
  outline: none;
}
.player-menu-vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0,229,255,.4);
}
.player-menu-divider {
  height: 1px;
  background: rgba(255,255,255,.06);
  margin: 4px 0;
}
.player-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: background .15s;
  text-align: left;
}
.player-menu-item:hover {
  background: rgba(255,255,255,.06);
}

/* Summary chips */
.summary-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.summary-chip {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255,255,255,.06);
  color: var(--text-dim);
  font-weight: 500;
}
.summary-chip.story { background: rgba(139,92,246,.15); color: #a78bfa; }
.summary-chip.narrator { background: rgba(0,229,255,.15); color: var(--cyan); }
.summary-chip.dialogue { background: rgba(255,45,170,.15); color: var(--magenta); }

/* Expand toggle */
.segment-expand-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
  margin-bottom: 8px;
}
.segment-expand-toggle:hover {
  border-color: rgba(0,229,255,.3);
  color: var(--cyan);
}
.segment-expand-toggle.open {
  color: var(--text);
}
.segment-expand-toggle .expand-arrow {
  transition: transform .2s;
  font-size: 10px;
}
.segment-expand-toggle.open .expand-arrow {
  transform: rotate(180deg);
}

/* Collapsed state */
.segments-collapsed {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.segments-collapsed.expanded {
  max-height: 2000px;
}
.segments-collapsed.expanded .segment-item {
  opacity: 1;
  transform: none;
}

/* Segments */
.segments { display: flex; flex-direction: column; gap: 6px; }
.segments-empty {
  font-size: 13px;
  color: var(--text-dim);
  opacity: .6;
  padding: 16px 0;
  text-align: center;
}
.segment-preview { margin-bottom: 20px; }
.audio-item {
  display: grid;
  grid-template-columns: 36px 70px 1fr 36px;
  align-items: center;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all .15s;
}
.audio-item:hover {
  border-color: var(--border-hover);
  background: var(--surface-hover);
}
.audio-item.playing {
  border-color: rgba(0,229,255,.3);
  background: linear-gradient(135deg, rgba(0,229,255,.05), rgba(139,92,246,.03));
  box-shadow: 0 0 20px rgba(0,229,255,.05);
}
.audio-label {
  font-size: 11px;
  color: var(--text-dim);
  font-weight: 600;
}
.audio-label small { display: block; font-weight: 400; font-size: 10px; }
.segment-type {
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 20px;
  font-weight: 600;
  display: inline-block;
  width: fit-content;
}
.segment-type.type-narration { background: var(--cyan-glow); color: var(--cyan); }
.segment-type.type-dialogue { background: var(--magenta-glow); color: var(--magenta); }
.segment-text {
  font-size: 14px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 8px;
}

/* Audio in player */
.audio-item audio {
  width: 100%;
  min-height: 44px;
}

/* Segment preview (step 2) */
.segment-item {
  display: flex;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: all .15s;
}
.segment-item:hover { border-color: var(--border-hover); }
.segment-idx { color: var(--text-dim); font-weight: 600; min-width: 28px; }

/* Hidden */
.hidden { display: none !important; }

/* Inline validation */
.input-error {
  border-color: #ff4444 !important;
  box-shadow: 0 0 8px rgba(255,68,68,.2);
}
.input-error:focus {
  border-color: #ff4444 !important;
  box-shadow: 0 0 12px rgba(255,68,68,.3);
}
.error-message {
  font-size: 12px;
  color: #ff6b6b;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
  animation: slideDown .2s ease;
}
.char-card.input-error {
  border-color: #ff4444;
  box-shadow: 0 0 12px rgba(255,68,68,.15);
}

/* Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
}
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

/* Keyboard focus */
.btn-neon:focus-visible, .preset-btn:focus-visible, .gen-btn:focus-visible,
.lang-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Tap feedback */
.btn-neon:active, .preset-btn:active, .gen-btn:active,
.lang-btn:active, .btn-ghost:active, .btn-save:active,
.preset-more-btn:active, .btn-sm:active, .btn-clear:active {
  transform: scale(0.97);
  opacity: 0.85;
}

/* Responsive — Tablet */
@media (max-width: 768px) {
  .char-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .player-topbar { gap: 8px; }
  .player-topbar-time { font-size: 10px; min-width: 60px; }
}

/* Responsive — Mobile */
@media (max-width: 640px) {
  body::before { animation: none; }
  /* Layout */
  .app { padding: 20px 14px max(60px, calc(48px + env(safe-area-inset-bottom, 0px))); position: relative; }
  .header { flex-direction: column; gap: 12px; }
  .header-left { width: 100%; }
  .header-left h1 { font-size: 24px; }
  .header-controls { flex-wrap: wrap; }
  .header-top { flex-wrap: wrap; gap: 8px; }
  .header-top h1 { font-size: 24px; }
  .config-bar { position: relative; flex-direction: column; }
  .config-bar .glass { min-width: 100%; }
  .char-grid { grid-template-columns: 1fr; }
  .preset-bar { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .player-controls { flex-direction: column; align-items: stretch; }
  .dl-btn { margin-left: 0; min-height: 44px; }

  /* Touch targets (44px min) */
  /* preset-btn and lang-btn already 44px base */
  /* transport buttons already 44px base */
  .btn-neon { min-height: 44px; }
  .gen-btn { min-height: 48px; }
  .settings-btn { min-width: 44px; min-height: 44px; }
  /* modal-close already 44px base */
  /* preset-more-btn already 44px base */
  .btn-ghost { min-height: 44px; }
  .btn-save { min-height: 44px; }

  /* Typography */

  /* Toast */
  .toast-container { top: 10px; right: 10px; left: 10px; }
  .toast { max-width: 100%; }

  /* Segment text — allow wrap on mobile */
  .segment-text {
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
  }

  /* Modal */
  .modal { width: 95%; }
  .modal-body { padding: 16px; }
  .modal-footer { padding: 12px 16px; }

  /* Player topbar — mobile */
  .player-topbar { gap: 6px; }
  .player-topbar-play { width: 34px; height: 34px; font-size: 13px; }
  .player-topbar-time { font-size: 10px; min-width: 55px; }
  .player-topbar-menu { width: 28px; height: 28px; font-size: 14px; }
  .player-menu { min-width: 200px; right: -8px; }
}

/* Preset expand/collapse */

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-overlay.show {
  display: flex;
}
.modal {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  width: 90%;
  max-width: 480px;
  max-height: 80vh;
  box-shadow: 0 16px 48px rgba(0,0,0,.5), 0 0 40px rgba(139,92,246,.08);
  overflow-y: auto;
  transform: scale(.95);
  transition: transform .2s;
}
.modal-overlay.show .modal {
  transform: scale(1);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 {
  font-size: 16px;
  font-weight: 600;
}
.modal-close {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all .2s;
}
.modal-close:hover {
  border-color: var(--magenta);
  color: var(--magenta);
}
.modal-close:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.modal-body {
  padding: 24px;
}
.modal-section {
  margin-bottom: 20px;
}
.modal-section:last-child { margin-bottom: 0; }
.modal-section label {
  display: block;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.modal-section input,
.modal-section select {
  width: 100%;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.modal-section input:focus,
.modal-section select:focus {
  border-color: var(--cyan);
}
.modal-section select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236a6888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.input-with-toggle {
  display: flex;
  gap: 0;
}
.input-with-toggle input {
  flex: 1;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border-right: none;
}
.input-toggle-btn {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  transition: border-color .2s;
}
.input-toggle-btn:hover {
  border-color: var(--border-hover);
}
.modal-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  margin-bottom: 8px;
}
.modal-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--cyan);
}
.modal-footer {
  padding: 16px 24px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.btn-ghost {
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}
.btn-ghost:hover {
  border-color: var(--text-dim);
  color: var(--text);
}
.btn-ghost:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.btn-save {
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: white;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.btn-save:hover {
  box-shadow: 0 0 20px rgba(0,229,255,.25);
}
.btn-save:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Language toggle */
.lang-toggle {
  display: flex;
  gap: 4px;
  justify-content: center;
}
.lang-btn {
  padding: 8px 14px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
}
.lang-btn:hover {
  border-color: var(--magenta);
  color: var(--magenta);
}
.lang-btn.active {
  background: linear-gradient(135deg, rgba(0,229,255,.15), rgba(139,92,246,.15));
  border-color: var(--cyan);
  color: var(--cyan);
}

/* Toast notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  background: rgba(30,30,60,.9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  transform: translateX(120%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  pointer-events: auto;
  max-width: 360px;
}
.toast.show { transform: translateX(0); }
.toast.success { background: rgba(34,197,94,.85); }
.toast.error { background: rgba(239,68,68,.85); }
.toast.info { background: rgba(99,102,241,.85); }
.toast.warning { background: rgba(251,146,60,.85); }


/* Loading spinner */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}
.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  transform: none;
  background: none;
  transition: none;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }