:root { color-scheme: light dark; --bg: #f5f5f3; --card: #fff; --text: #0b0b0b; --muted: #52514e; --line: rgba(11,11,11,.1); --link: #1d4ed8; }
@media (prefers-color-scheme: dark) { :root { --bg: #0e0e0f; --card: #18181a; --text: #f5f5f4; --muted: #c3c2b7; --line: rgba(255,255,255,.1); --link: #7cb1ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 48px 20px 64px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 28px 28px 20px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 17px; margin: 28px 0 6px; }
p, li { color: var(--muted); }
strong { color: var(--text); }
a { color: var(--link); }
.mark { display: inline-flex; width: 36px; height: 36px; border-radius: 9px; background: #f0262e; align-items: end; justify-content: center; gap: 3px; padding: 7px; margin-bottom: 14px; }
.mark span { width: 5px; background: #fff; border-radius: 2px; }
footer { margin-top: 20px; font-size: 14px; color: var(--muted); }