:root { color-scheme: light dark; --ink: #202020; --muted: #5f5f66; --bg: #f7f6fb; --card: #ffffff; --accent: #5332e0; }
@media (prefers-color-scheme: dark) { :root { --ink: #f5f5f7; --muted: #a8a8b3; --bg: #121117; --card: #1d1b26; --accent: #a996ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 32px 20px 64px; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 28px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 22px; }
nav { margin-left: auto; font-size: 15px; color: var(--muted); }
nav a { color: var(--accent); font-size: 15px; font-weight: 400; white-space: nowrap; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--card); border-radius: 18px; padding: 20px; margin: 20px 0; }
a { color: var(--accent); }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }