:root{--bg:#fafafa;--surface:#ffffff;--surface-2:#f4f4f5;--border:#e4e4e7;--text:#18181b;--text-muted:#71717a;--success:#16a34a;--danger:#dc2626;--warning:#d97706;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,0.06),0 4px 16px rgba(0,0,0,0.04)}@media (prefers-color-scheme:dark){:root{--bg:#0c0c0e;--surface:#17171a;--surface-2:#202024;--border:#2a2a30;--text:#f4f4f5;--text-muted:#9d9da8;--shadow:0 1px 3px rgba(0,0,0,0.4),0 4px 16px rgba(0,0,0,0.3)}}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:880px;margin:0 auto;padding:0 24px}.site-header{border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--surface) 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