:root {
  --bg: #0f1419;
  --card: #1a2029;
  --ink: #e8edf2;
  --muted: #9aa7b4;
  --accent: #4f9cf9;
  --border: #2a333f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.6;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 48px 24px; }
header.site { display: flex; align-items: baseline; gap: 12px; margin-bottom: 32px; }
header.site h1 { margin: 0; font-size: 28px; }
header.site .sub { color: var(--muted); font-size: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  margin-bottom: 20px;
}
h2 { margin-top: 0; font-size: 22px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.tile {
  display: block; background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px; color: var(--ink); font-size: 20px; font-weight: 600;
}
.tile:hover { border-color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); }
footer { margin-top: 40px; color: var(--muted); font-size: 14px; }