/* ══════════════════════════════════════
   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 bar ── */
.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 — natural 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:480px){
  .cv-player{border-radius:8px}
  .cv-controls{padding:4px 10px 8px}
  .cv-chapter-label{font-size:11px}
  .cv-volume-slider{width:36px}
}