:root { --ink: #111; --muted: #555; --brand: #017377; --rule: #ddd; --page: #fff; }
@media (prefers-color-scheme: dark) { :root { --ink: #eee; --muted: #aaa; --brand: #4fb3b6; --rule: #333; --page: #111; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.6 Georgia, "Times New Roman", serif; }
header, main, footer { max-width: 42rem; margin: 0 auto; padding: 0 16px; }
header { padding-top: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
.logo { color: var(--ink); text-decoration: none; font: 800 24px/32px system-ui, -apple-system, "Segoe UI", sans-serif; letter-spacing: -0.02em; }
.dot { display: inline-block; width: 6px; height: 6px; margin-left: 2px; background: var(--brand); }
h1, h2 { font-family: system-ui, -apple-system, "Segoe UI", sans-serif; line-height: 1.25; }
h1 { margin: 32px 0 8px; font-size: 32px; }
h2 { margin: 32px 0 8px; font-size: 21px; }
.meta { color: var(--muted); font-family: system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 15px; }
a { color: var(--brand); }
footer { margin-top: 48px; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 15px; }