:root { color-scheme: dark; --bg: #0b0e14; --card: #141925; --text: #f4f6fa; --muted: #aab2c0; --accent: #ffa000; --line: #2a3140; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(circle at 50% -20%, #302414, var(--bg) 42%); color: var(--text); font: 16px/1.65 Inter, system-ui, -apple-system, sans-serif; }
main { width: min(820px, calc(100% - 32px)); margin: 0 auto; padding: 64px 0 80px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 36px; }
.mark { color: var(--accent); font: 700 42px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
h1 { margin: 0; font-size: clamp(28px, 5vw, 44px); }
h2 { margin-top: 36px; font-size: 22px; }
p, li { color: var(--muted); }
a { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 12px 20px; padding: 16px 0; border-block: 1px solid var(--line); }
nav a { text-decoration: none; }
.card { margin-top: 28px; padding: clamp(20px, 4vw, 36px); background: color-mix(in srgb, var(--card) 92%, transparent); border: 1px solid var(--line); border-radius: 20px; }
.meta { color: var(--muted); font-size: 14px; }
footer { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }