:root { color-scheme: light dark; --bg: #f6f5f2; --ink: #16151a; --muted: #5d5b66; --line: #e2dfd8; --accent: #5330e6; }
@media (prefers-color-scheme: dark) { :root { --bg: #0f0e13; --ink: #ecebf2; --muted: #a4a2b0; --line: #2a2833; --accent: #9b86ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 40px 20px 80px; }
header a { color: var(--ink); font-weight: 800; text-decoration: none; letter-spacing: -.02em; font-size: 20px; }
h1 { font-size: 32px; line-height: 1.15; margin: 28px 0 6px; letter-spacing: -.02em; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
p, li { margin: 0 0 10px; }
ul { padding-left: 20px; }
a { color: var(--accent); }
.box { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 18px 0; }
footer { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }