:root { color-scheme: light dark; --accent: #2A54F5; }
body { margin: 0; font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 32px 20px 64px; }
header { display: flex; align-items: center; gap: 20px; }
header img { border-radius: 22px; }
h1 { margin: 0.2em 0; }
h2 { margin-top: 1.8em; }
h3 { margin-bottom: 0.2em; }
a { color: var(--accent); }
.muted { color: #6b6b70; }
@media (prefers-color-scheme: dark) { :root { --accent: #8FB0FF; } .muted { color: #a0a0a8; } }