:root {
  --bg: #fbfaf7;
  --fg: #1d1d1f;
  --muted: #6b6b70;
  --line: #e4e2dc;
  --card: #ffffff;
  --accent: #e8462a;
  --accent-fg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131315;
    --fg: #f2f1ee;
    --muted: #a3a3a8;
    --line: #2c2c30;
    --card: #1c1c1f;
    --accent: #ff6a4d;
    --accent-fg: #131315;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.75;
}
a { color: inherit; }
main, header.top, footer { max-width: 960px; margin: 0 auto; padding: 0 16px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 16px; padding-bottom: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.25rem; text-decoration: none; }
nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: .9rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }
.tagline { color: var(--muted); margin: 8px 0 24px; }
.empty { padding: 48px 0; color: var(--muted); }
.grid { list-style: none; padding: 0; margin: 0 0 48px; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card a { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; text-decoration: none; height: 100%; }
.card a:hover { border-color: var(--accent); }
.card img, .card .noimg { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--line); }
.card h2 { font-size: 1.05rem; margin: 12px 14px 4px; }
.card p { margin: 0 14px 14px; color: var(--muted); font-size: .9rem; line-height: 1.6; }
.game { max-width: 720px; margin: 0 auto 48px; }
.game h1 { font-size: 1.75rem; margin: 8px 0 16px; line-height: 1.3; }
.game h2 { font-size: 1.15rem; margin-top: 32px; }
.hero { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); }
.lead { font-size: 1.1rem; font-weight: 600; }
.play { margin: 20px 0; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-fg); font-weight: 700; font-size: 1.1rem; padding: 14px 32px; border-radius: 999px; text-decoration: none; }
.btn:hover { filter: brightness(1.08); }
.log { list-style: none; padding: 0; }
.log li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.log time { color: var(--muted); font-variant-numeric: tabular-nums; margin-right: 12px; }
footer { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; padding-bottom: 32px; color: var(--muted); font-size: .85rem; }