:root { --bg: #f6f4fb; --ink: #1d1a2e; --muted: #5d5873; --card: #ffffff; --accent: #2a7de1; --line: #e3dff0; }
@media (prefers-color-scheme: dark) { :root { --bg: #0f1022; --ink: #f1f0f8; --muted: #a9a6c2; --card: #191a33; --accent: #6db3ff; --line: #2a2b4a; } }
* { 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: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
header img { width: 64px; height: 64px; border-radius: 15px; }
h1 { font-size: 30px; margin: 0; }
h2 { font-size: 20px; margin: 28px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; margin: 16px 0; }
a { color: var(--accent); }
nav a { margin-right: 16px; }