:root { --page: #ebe8e2; --ink: #111; --muted: #6b6760; --line: #e24a4f; }
@media (prefers-color-scheme: dark) { :root { --page: #121110; --ink: #f2f0ec; --muted: #9a958d; --line: #f25c5c; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 56px 28px 80px; position: relative; }
main::before { content: ""; position: absolute; top: 0; bottom: 0; right: 28px; width: 1.5px; background: var(--line); }
h1 { font-size: 64px; line-height: 1; letter-spacing: -0.04em; font-weight: 500; margin: 0 0 8px; }
h2 { font-size: 24px; letter-spacing: -0.02em; font-weight: 500; margin: 40px 0 8px; }
p, li { max-width: 34em; }
.muted { color: var(--muted); }
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 3px; }
nav { margin-top: 48px; display: flex; gap: 20px; }