:root { --bg: #0a0e15; --text: #e6eaf2; --muted: #8b95a8; --accent: #3fd07a; --border: #212b3d; color-scheme: dark; }
@media (prefers-color-scheme: light) { :root { --bg: #f7f8fa; --text: #111827; --muted: #4b5563; --accent: #0f6b34; --border: #d8dde6; color-scheme: light; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 Inter, system-ui, -apple-system, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
a { color: var(--accent); }
h1 { font-size: 28px; margin: 12px 0 4px; }
h2 { font-size: 18px; margin: 28px 0 6px; }
.muted { color: var(--muted); font-size: 14px; }
.back { display: inline-block; margin-bottom: 8px; text-decoration: none; }
footer { border-top: 1px solid var(--border); margin-top: 40px; padding-top: 14px; color: var(--muted); font-size: 13px; }