@media (prefers-color-scheme: dark) {
  :root {
    --card-bg: #0f1115;
    --card-fg: #eaecf0;
    --card-muted: #9aa3b2;
    --card-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.4);
    --card-shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.6), 0 4px 8px rgba(0, 0, 0, 0.5);
    --card-accent: #60a5fa;
  }
}

:root {
  --card-bg: #fff;
  --card-fg: #1a1a1a;
  --card-muted: #6b7280;
  --card-border: rgba(0, 0, 0, 0.08);
  --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.06);
  --card-shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
  --card-accent: #2563eb;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: stretch;
}

.term-card {
  background: var(--card-bg);
  color: var(--card-fg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 16px 18px;
  transition: transform .15s ease, box-shadow .15s ease, border-color .2s ease;
  position: relative;
}

.term-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(37, 99, 235, 0.25);
}

.card-title {
  margin: 0 0 6px 0;
  line-height: 1.25;
  font-size: 1.1rem;
  font-weight: 700;
}

.card-title .yomi {
  margin-left: .5rem;
  font-weight: 600;
  font-size: .85rem;
  color: var(--card-muted);
}

.card-title .muted {
  color: var(--card-muted);
}

.card-genre {
  margin-bottom: 8px;
}

.badge {
  display: inline-block;
  padding: .25rem .5rem;
  border-radius: 999px;
  font-size: .75rem;
  line-height: 1;
  border: 1px solid var(--card-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.6));
  color: var(--card-muted);
}

@media (prefers-color-scheme: dark) {
  .badge {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
    color: var(--card-muted);
    border-color: var(--card-border);
  }
}

.badge-genre {
  color: var(--card-fg);
  border-color: rgba(37, 99, 235, 0.25);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.12), rgba(37, 99, 235, 0.06));
  text-decoration: none;
}

a .badge-genre {
  text-decoration: none;
}

a .badge-genre:hover {
  text-decoration: none;
}

.prose {
  line-height: 1.7;
  font-size: .95rem;
  color: var(--card-fg);
}

.prose p {
  margin: .4rem 0;
}

.prose a {
  color: var(--card-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose a:hover {
  opacity: .85;
}

.line {
  margin-top: .6rem;
  padding-top: .6rem;
  border-top: 1px dashed var(--card-border);
  font-size: .9rem;
}

.line strong {
  color: var(--card-muted);
  font-weight: 700;
  margin-right: .25rem;
}

.card-links a,
.card-related a,
.card-tags a {
  margin-right: .25rem;
  white-space: nowrap;
}

.youtube-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: .5rem 0 .25rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
}

.youtube-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}