:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  border-bottom: 1px solid #334155;
  padding: 18px 0;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
}
nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}
nav a:hover { color: var(--text); }
.hero {
  padding: 56px 0 32px;
}
.hero h1 {
  font-size: 2rem;
  margin: 0 0 12px;
}
.hero p {
  color: var(--muted);
  max-width: 680px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin: 24px 0 40px;
}
.card {
  background: var(--panel);
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 20px;
}
.card h2 {
  font-size: 1.1rem;
  margin-top: 0;
}
.badge.ok {
  color: var(--ok);
  font-weight: 600;
}
.notes {
  background: var(--panel);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  border-radius: 4px;
}
.footer {
  margin-top: 64px;
  padding: 24px;
  border-top: 1px solid #334155;
  color: var(--muted);
  font-size: 0.85rem;
}