:root { --red: #d6263d; --blue: #1f5cd6; --ink: #1d1d1f; --muted: #6e6e73; --bg: #ffffff; --line: #e5e5ea; }
@media (prefers-color-scheme: dark) { :root { --ink: #f5f5f7; --muted: #a1a1a6; --bg: #000000; --line: #2c2c2e; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif; }
header { background: var(--red); color: #fff; padding: 48px 20px 40px; }
header .wrap, main { max-width: 680px; margin: 0 auto; }
header img { width: 72px; height: 72px; border-radius: 16px; display: block; margin-bottom: 20px; }
h1 { font: 800 44px/1.05 -apple-system, "SF Pro Display", sans-serif; font-stretch: condensed; letter-spacing: -0.02em; margin: 0; }
header p { margin: 8px 0 0; opacity: 0.9; }
main { padding: 32px 20px 64px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 15px; }
a { color: var(--red); }
nav { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 15px; }
nav a { margin-right: 20px; }