/* Minimal, readable, no external fonts */
:root {
  --bg: #0c0d10;
  --fg: #e9e9ee;
  --muted: #a5a7b2;
  --card: #151823;
  --line: #272a36;
  --accent: #8ab4ff;
  --radius: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --fg: #0a0b0e;
    --muted: #5b5e68;
    --card: #ffffff;
    --line: #e5e7ef;
    --accent: #0a84ff;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

.container { max-width: 1000px; margin: 0 auto; padding: 20px; }

.site-header { position: sticky; top: 0; background: color-mix(in oklab, var(--bg) 85%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); z-index: 10; }
.nav { display: flex; align-items: center; gap: 20px; }
.brand { text-decoration: none; color: var(--fg); font-weight: 700; letter-spacing: -0.02em; }
.nav-links { margin-left: auto; display: flex; gap: 14px; list-style: none; padding: 0; }
.nav a { color: var(--fg); text-decoration: none; padding: 8px 10px; border-radius: 10px; }
.nav a:hover { background: var(--card); }

.hero { padding: 48px 0; text-align: center; }
.hero .muted { color: var(--muted); }

.page h1, .hero h1 { letter-spacing: -0.02em; margin-bottom: 6px; }

.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.card.link { text-decoration: none; color: inherit; display: block; }
.card.link:hover { outline: 2px solid var(--accent); outline-offset: 2px; }

.timeline { padding-left: 18px; }
.timeline li { margin: 6px 0; }

.site-footer { border-top: 1px solid var(--line); margin-top: 40px; }
.site-footer p { color: var(--muted); font-size: 14px; }