/* ══════════════════════════════════════
   Chapter Video Player — Cavai Style
   ══════════════════════════════════════ */

.cv-player {
  --cp-pink: #ff7f89;
  --cp-pink-hover: #ff6b7a;
  --cp-gradient: linear-gradient(135deg, #FF6B9E, #FFA07A, #FFDB58);
  --cp-warm: #f5eee9;
  --cp-warm-mid: #f7f1ec;
  --cp-warm-deep: #ede5de;
  --cp-bg: #fff;
  --cp-text: #1a1a1a;
  --cp-text-dim: #9ca3af;
  --cp-text-mid: #6b7280;
  --cp-border: rgba(255,127,137,.15);
  --cp-radius: 12px;

  position: relative;
  background: var(--cp-bg);
  border-radius: var(--cp-radius);
  corner-shape: squircle;
  overflow: hidden;
  max-width: 100%;
  margin: 0 auto;
  font-family: 'Lato', system-ui, -apple-system, sans-serif;
  box-shadow: 0 2px 16px rgba(0,0,0,.08), 0 0 0 1px var(--cp-border);
}


/* ══════════════════════════════════════
   Video
   ══════════════════════════════════════ */

.cv-video-wrap {
  position: relative;
}

.cv-player video {
  display: block;
  width: 100%;
  background: #f5eee9;
  cursor: pointer;
}


/* ══════════════════════════════════════
   Controls
   ══════════════════════════════════════ */

.cv-controls {
  position: relative;
  padding: 6px 16px 10px;
  background: var(--cp-warm);
}

/* ── Segmented progress bar ── */

.cv-progress-wrap {
  position: relative;
  height: 22px;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 7px 0;
}

.cv-progress-track {
  position: relative;
  width: 100%;
  height: 5px;
  background: var(--cp-warm-deep);
  border-radius: 3px;
  display: flex;
  overflow: hidden;
  transition: height .15s ease;
}

.cv-progress-wrap:hover .cv-progress-track {
  height: 8px;
}

.cv-progress-segment {
  position: relative;
  height: 100%;
  transition: flex .1s ease;
  pointer-events: none;
}

.cv-progress-segment + .cv-progress-segment {
  border-left: 2.5px solid var(--cp-warm);
}

.cv-progress-segment-fill {
  position: absolute;
  inset: 0;
  background: var(--cp-pink);
  transform-origin: left;
  transform: scaleX(0);
}

.cv-progress-segment.past .cv-progress-segment-fill {
  transform: scaleX(1);
}

/* ── Hover tooltip ── */

.cv-progress-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--cp-text);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 8px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s;
  z-index: 30;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.cv-progress-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--cp-text);
}

.cv-progress-wrap:hover .cv-progress-tooltip.visible {
  opacity: 1;
}

/* ── Button row ── */

.cv-btn-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

.cv-btn {
  background: none;
  border: none;
  color: var(--cp-text-mid);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  border-radius: 6px;
  transition: color .15s, background .15s;
}

.cv-btn:hover {
  color: var(--cp-text);
  background: rgba(0,0,0,.04);
}

.cv-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.cv-time {
  font-size: 11px;
  color: var(--cp-text-mid);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  white-space: nowrap;
  font-weight: 700;
}

.cv-chapter-label {
  flex: 1;
  font-size: 12px;
  font-weight: 900;
  color: var(--cp-text);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0;
  transition: opacity .3s ease;
}

.cv-chapter-label.visible {
  opacity: 1;
}

.cv-spacer {
  flex: 1;
}

.cv-volume-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
}

.cv-volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 52px;
  height: 3px;
  background: var(--cp-warm-deep);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.cv-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cp-text-mid);
  cursor: pointer;
  transition: background .15s;
}

.cv-volume-slider::-webkit-slider-thumb:hover {
  background: var(--cp-pink);
}

.cv-volume-slider::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border: none;
  border-radius: 50%;
  background: var(--cp-text-mid);
  cursor: pointer;
}


/* ══════════════════════════════════════
   Chapter List
   ══════════════════════════════════════ */

.cv-chapters {
  background: var(--cp-warm-mid);
  border-top: 1px solid var(--cp-border);
}

.cv-chapters-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  cursor: pointer;
  user-select: none;
  font-size: 10px;
  font-weight: 700;
  color: var(--cp-text-dim);
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: color .15s;
}

.cv-chapters-toggle:hover {
  color: var(--cp-text-mid);
}

.cv-chapters-toggle svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  transition: transform .2s ease;
}

.cv-chapters.open .cv-chapters-toggle svg {
  transform: rotate(180deg);
}

.cv-chapter-list {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.cv-chapters.open .cv-chapter-list {
  max-height: 600px;
}

.cv-chapter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  cursor: pointer;
  transition: background .15s;
  border-top: 1px solid rgba(0,0,0,.04);
}

.cv-chapter-item:hover {
  background: var(--cp-warm);
}

.cv-chapter-item.active {
  background: rgba(255,127,137,.06);
  border-left: 3px solid var(--cp-pink);
  padding-left: 13px;
}

.cv-chapter-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--cp-text-dim);
  width: 16px;
  text-align: right;
  flex-shrink: 0;
}

.cv-chapter-item.active .cv-chapter-num {
  color: var(--cp-pink);
}

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

.cv-chapter-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--cp-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cv-chapter-item.active .cv-chapter-name {
  color: var(--cp-pink-hover);
  font-weight: 900;
}

.cv-chapter-timestamp {
  font-size: 10px;
  color: var(--cp-text-dim);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  font-weight: 700;
}

.cv-chapter-playing-icon {
  width: 14px;
  height: 14px;
  display: none;
  flex-shrink: 0;
  color: var(--cp-pink);
}

.cv-chapter-item.active .cv-chapter-playing-icon {
  display: block;
}


/* ══════════════════════════════════════
   Fullscreen (dark for video)
   ══════════════════════════════════════ */

.cv-player:fullscreen,
.cv-player:-webkit-full-screen {
  border-radius: 0;
  max-width: none;
  background: #000;
}

.cv-player:fullscreen video,
.cv-player:-webkit-full-screen video {
  height: calc(100vh - 80px);
  object-fit: contain;
}

.cv-player:fullscreen .cv-controls,
.cv-player:-webkit-full-screen .cv-controls {
  background: #1a1a1a;
  position: relative;
  z-index: 25;
}

.cv-player:fullscreen .cv-btn,
.cv-player:-webkit-full-screen .cv-btn {
  color: rgba(255,255,255,.6);
}

.cv-player:fullscreen .cv-btn:hover,
.cv-player:-webkit-full-screen .cv-btn:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}

.cv-player:fullscreen .cv-time,
.cv-player:-webkit-full-screen .cv-time {
  color: rgba(255,255,255,.5);
}

.cv-player:fullscreen .cv-chapter-label,
.cv-player:-webkit-full-screen .cv-chapter-label {
  color: #fff;
}

.cv-player:fullscreen .cv-progress-track,
.cv-player:-webkit-full-screen .cv-progress-track {
  background: rgba(255,255,255,.12);
}

.cv-player:fullscreen .cv-progress-segment + .cv-progress-segment,
.cv-player:-webkit-full-screen .cv-progress-segment + .cv-progress-segment {
  border-left-color: #1a1a1a;
}

.cv-player:fullscreen .cv-volume-slider,
.cv-player:-webkit-full-screen .cv-volume-slider {
  background: rgba(255,255,255,.12);
}

.cv-player:fullscreen .cv-volume-slider::-webkit-slider-thumb,
.cv-player:-webkit-full-screen .cv-volume-slider::-webkit-slider-thumb {
  background: rgba(255,255,255,.7);
}

.cv-player:fullscreen .cv-chapters,
.cv-player:-webkit-full-screen .cv-chapters {
  position: absolute;
  bottom: 80px;
  left: 0;
  right: 0;
  background: rgba(26,26,26,.95);
  backdrop-filter: blur(8px);
  z-index: 20;
  max-height: 40vh;
  overflow-y: auto;
  border-top-color: rgba(255,255,255,.06);
}

.cv-player:fullscreen .cv-chapters-toggle,
.cv-player:-webkit-full-screen .cv-chapters-toggle {
  color: rgba(255,255,255,.4);
}

.cv-player:fullscreen .cv-chapter-item,
.cv-player:-webkit-full-screen .cv-chapter-item {
  border-top-color: rgba(255,255,255,.06);
}

.cv-player:fullscreen .cv-chapter-item:hover,
.cv-player:-webkit-full-screen .cv-chapter-item:hover {
  background: rgba(255,255,255,.05);
}

.cv-player:fullscreen .cv-chapter-item.active,
.cv-player:-webkit-full-screen .cv-chapter-item.active {
  background: rgba(255,127,137,.1);
  border-left-color: var(--cp-pink);
}

.cv-player:fullscreen .cv-chapter-name,
.cv-player:-webkit-full-screen .cv-chapter-name {
  color: rgba(255,255,255,.9);
}

.cv-player:fullscreen .cv-chapter-num,
.cv-player:fullscreen .cv-chapter-timestamp,
.cv-player:-webkit-full-screen .cv-chapter-num,
.cv-player:-webkit-full-screen .cv-chapter-timestamp {
  color: rgba(255,255,255,.35);
}


/* ══════════════════════════════════════
   Big Play Button
   ══════════════════════════════════════ */

.cv-big-play {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.12);
  cursor: pointer;
  z-index: 5;
  transition: opacity .2s;
}

.cv-big-play.hidden {
  opacity: 0;
  pointer-events: none;
}

.cv-big-play-icon {
  width: 60px;
  height: 60px;
  background: var(--cp-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255,107,158,.35);
  transition: transform .15s, box-shadow .15s;
}

.cv-big-play:hover .cv-big-play-icon {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(255,107,158,.45);
}

.cv-big-play-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
  margin-left: 2px;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.15));
}


/* ══════════════════════════════════════
   Responsive
   ══════════════════════════════════════ */

@media (max-width: 600px) {
  .cv-player {
    border-radius: 8px;
  }

  .cv-controls {
    padding: 4px 10px 8px;
  }

  .cv-chapter-label {
    font-size: 11px;
  }

  .cv-volume-wrap {
    display: none;
  }

  .cv-big-play-icon {
    width: 48px;
    height: 48px;
  }

  .cv-big-play-icon svg {
    width: 20px;
    height: 20px;
  }

  .cv-chapter-item {
    padding: 6px 12px;
    gap: 8px;
  }

  .cv-chapter-name {
    font-size: 12px;
  }
}