:root { color-scheme: light; --bg: #F6F7F9; --ink: #141821; --muted: #5A6272; --line: #E1E4EA; --accent: #3F5BDB; --card: #FFFFFF; }
@media (prefers-color-scheme: dark) { :root { color-scheme: dark; --bg: #0E1117; --ink: #E7EAF0; --muted: #98A0AE; --line: #262B36; --accent: #8098FF; --card: #151922; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 "Segoe UI", system-ui, -apple-system, sans-serif; }
.wrap { max-width: 760px; margin: 0 auto; padding-inline: 20px; padding-block: 40px 80px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.logo { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, #3F5BDB, #7A5AF0); color: #fff; display: grid; place-items: center; font-weight: 700; }
nav { display: flex; gap: 16px; font-size: 14px; }
a { color: var(--accent); }
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 12px; text-wrap: balance; }
h2 { font-size: 20px; margin: 32px 0 8px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px; margin-top: 20px; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 8px 16px; }