:root { --paper: #faf5e6; --ink: #212e24; --leaf: #3d8c54; --muted: #5d6b60; }
@media (prefers-color-scheme: dark) { :root { --paper: #141c17; --ink: #edebdb; --leaf: #6cbf84; --muted: #a3ada5; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.55 ui-rounded, -apple-system, system-ui, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 40px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
header img { width: 64px; height: 64px; border-radius: 14px; }
h1 { margin: 0; font-size: 30px; }
h2 { margin-top: 32px; font-size: 20px; }
a { color: var(--leaf); }
.muted { color: var(--muted); }
nav { margin-top: 40px; font-size: 15px; }
nav a { margin-right: 16px; }