:root {
  --bg: #0f1720;
  --surface: #1b2531;
  --border: #324152;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --accent: #f59e0b;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
a { color: var(--primary); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 28px; padding-bottom: 8px; display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.brand { font-size: 1.5rem; font-weight: 800; letter-spacing: 0.2px; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }
.hero { padding: 36px 0 12px; }
.hero h1 { font-size: 2.1rem; line-height: 1.2; margin: 0 0 12px; }
.hero p { font-size: 1.15rem; color: var(--muted); margin: 0 0 18px; }
.badge { display: inline-block; padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--accent); font-weight: 600; font-size: 0.9rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin: 18px 0; }
.card h2, .card h3 { margin-top: 0; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
h1, h2, h3 { line-height: 1.25; }
.note { color: var(--muted); font-size: 0.95rem; }
footer { padding-top: 28px; padding-bottom: 40px; color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--border); margin-top: 36px; }