:root {
  color-scheme: dark;
  --bg: #0b0e14;
  --surface: #151a24;
  --surface-2: #1c2333;
  --border: #2a3142;
  --text: #e8eaf0;
  --text-dim: #9aa3b8;
  --accent: #7dd3fc;
  --accent-2: #a78bfa;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

header.site-header {
  padding: 20px 16px 12px;
  text-align: center;
}

header.site-header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

header.site-header p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.genre-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 16px;
  -webkit-overflow-scrolling: touch;
}

.genre-filter a {
  flex: 0 0 auto;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  white-space: nowrap;
}

.genre-filter a.active {
  background: var(--accent);
  color: #0b0e14;
  border-color: var(--accent);
  font-weight: 600;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 8px 16px 40px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 560px) {
  .grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .grid { grid-template-columns: 1fr 1fr 1fr; }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.card:active {
  transform: scale(0.98);
}

@media (hover: hover) {
  .card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
  }
}

.card .thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
}

.card .body {
  padding: 12px 14px 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card .title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.card h2 {
  margin: 0;
  font-size: 1.02rem;
}

.card .genre-tag {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: var(--surface-2);
  padding: 2px 7px;
  border-radius: 6px;
  white-space: nowrap;
}

.card p.desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.35;
}

.card .play-cta {
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}

footer.stamp {
  text-align: center;
  padding: 24px 16px 32px;
  color: var(--text-dim);
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}

/* per-game page chrome */
body.game-page {
  min-height: 100vh;
}