:root { --text: #1d2a25; --muted: #5d6b65; --bg: #f6f4ee; --card: #ffffff; --line: #e4e1d7; --accent: #154539; }
@media (prefers-color-scheme: dark) {
  :root { --text: #e8eee9; --muted: #a3b1aa; --bg: #111916; --card: #18221e; --line: #2a3832; --accent: #7cc4a6; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px 24px; }
h1 { font-size: 26px; margin: 0 0 4px; color: var(--accent); }
h2 { font-size: 18px; margin: 28px 0 8px; }
.muted { color: var(--muted); font-size: 14px; }
nav { margin: 0 0 20px; font-size: 14px; }
a { color: var(--accent); }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
ul { padding-left: 22px; }
.links { display: grid; gap: 12px; margin-top: 20px; }
.links a { display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; font-weight: 600; }