:root {
    color-scheme: light dark;
    --fg: #1c1c1c;
    --muted: #666;
    --bg: #fafafa;
    --accent: #1a4f8c;
}
@media (prefers-color-scheme: dark) {
    :root { --fg: #e8e8e8; --muted: #999; --bg: #1c1c1c; --accent: #74a8e0; }
}
* { box-sizing: border-box; }
html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; }
body {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
    color: var(--fg);
    background: var(--bg);
    line-height: 1.6;
}
header { border-bottom: 1px solid var(--muted); padding-bottom: 1rem; margin-bottom: 2rem; }
h1 { margin: 0 0 0.25rem; font-size: 1.6rem; }
.tagline { margin: 0; color: var(--muted); }
.hero img { width: 100%; height: auto; border-radius: 6px; }
.posts article { margin: 2rem 0; }
.posts h2 { margin-bottom: 0.25rem; font-size: 1.2rem; }
.meta { color: var(--muted); font-size: 0.9rem; margin-top: 0; }
a { color: var(--accent); }
footer { margin-top: 3rem; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--muted); padding-top: 1rem; }