:root { --bg: #f7f6f2; --fg: #22211d; --muted: #6b6860; --line: #e2dfd6; --accent: #2f6f5e; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #171715; --fg: #e9e7e1; --muted: #9a978f; --line: #2c2b27; --accent: #7cc4ad; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { font: 17px/1.6 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 72px 20px 48px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
h1 { font-size: 30px; margin: 0; letter-spacing: -0.02em; }
h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 36px 0 8px; font-weight: 600; }
.lead { font-size: 19px; color: var(--fg); }
ul { padding-left: 20px; margin: 0; }
li { margin: 4px 0; }
a { color: var(--accent); }
footer { margin-top: 56px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }