.guide-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.guide-sections {
  width: 40%;
  overflow-y: auto;
  padding: 5px;
  box-sizing: border-box;
  border-right: 1px solid #444;
}

.guide-header {
  text-align: center;
  padding: 4px 0 8px;
  border-bottom: 1px solid #444;
  margin-bottom: 5px;
}

.guide-header h2 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.guide-header a {
  font-size: 0.75rem;
  color: #888;
  text-decoration: none;
}

.guide-header a:hover { color: aquamarine; }

.section-card {
  padding: 6px 8px;
  margin-bottom: 4px;
  border: 1px solid #444;
  border-radius: 8px;
  cursor: pointer;
  background: #0a0a0a;
  box-shadow: 0 2px 6px rgba(255, 255, 255, 0.04);
}

.section-card:hover { background: #111; }

.section-card.active {
  border-color: aquamarine;
  background: #071212;
  box-shadow: 0 2px 6px rgba(127, 255, 212, 0.08);
}

.section-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 3px;
}

.section-label-name {
  font-size: 0.8rem;
  color: aquamarine;
}

.section-label-ts {
  font-size: 0.7rem;
  color: #666;
}

.section-text {
  display: none;
  font-size: 0.95rem;
  color: #ccc;
  line-height: 1.6;
  font-weight: normal;
}

.section-card.active .section-text {
  display: block;
}

.guide-video-panel {
  width: 60%;
  display: flex;
  flex-direction: column;
  padding: 5px;
  box-sizing: border-box;
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
}

.video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

.video-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 0 0;
  flex-wrap: wrap;
}

.video-controls .tab-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.section-info {
  margin-left: auto;
  font-size: 0.75rem;
  color: #666;
}

.section-info span { color: aquamarine; }