/* ==========================================================================
   Video Player — course viewing page
   ========================================================================== */

/* Layout override: dark background, full-width content */
.video-layout {
  background-color: #111;
}

.video-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md);
}

/* Player container: video + chapter sidebar */
.video-player {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto auto auto;
  gap: var(--space-md);
}

/* When chapters exist, use a two-column layout on wide screens */
@media (min-width: 900px) {
  .video-player:has(.video-player__chapters) {
    grid-template-columns: 1fr 280px;
    grid-template-rows: auto auto;
  }

  .video-player__main {
    grid-column: 1;
    grid-row: 1;
  }

  .video-player__chapters {
    grid-column: 2;
    grid-row: 1;
  }

  .video-player__footer {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

/* Video element */
.video-player__main video {
  width: 100%;
  display: block;
  background: #000;
  border-radius: var(--border-radius);
}

/* Playback speed controls */
.video-player__controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.video-player__speed-label {
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
}

.video-player__speed-buttons {
  display: flex;
  gap: var(--space-xs);
}

.video-player__speed-buttons button {
  background: #333;
  color: #ccc;
  border: 1px solid #555;
  border-radius: var(--border-radius);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.video-player__speed-buttons button:hover {
  background: #444;
  color: #fff;
}

.video-player__speed-buttons button.selected {
  background: var(--color-brand);
  color: #fff;
  border-color: var(--color-brand);
}

/* Chapter sidebar */
.video-player__chapters {
  background: #1e1e1e;
  border-radius: var(--border-radius);
  overflow-y: auto;
  max-height: 500px;
}

.video-player__chapters-title {
  color: var(--color-text-inverse);
  font-size: var(--font-size-base);
  padding: var(--space-md) var(--space-md) var(--space-sm);
  margin: 0;
  border-bottom: 1px solid #333;
}

.video-player__chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.video-player__chapter-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  border-bottom: 1px solid #2a2a2a;
  color: #ccc;
  font-size: var(--font-size-sm);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.video-player__chapter-item:hover {
  background: #2a2a2a;
}

.video-player__chapter-item.active {
  background: #2a2a2a;
  color: var(--color-brand);
  border-left: 3px solid var(--color-brand);
}

.video-player__chapter-number {
  flex-shrink: 0;
  width: 1.5em;
  text-align: center;
  font-weight: 600;
  color: #888;
}

.video-player__chapter-item.active .video-player__chapter-number {
  color: var(--color-brand);
}

.video-player__chapter-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-player__chapter-duration {
  flex-shrink: 0;
  color: #888;
  font-size: 0.8em;
}

/* Footer area: documents, quiz, back link */
.video-player__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid #333;
}

.video-player__documents {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.video-player__back {
  margin-left: auto;
}