:root{--font-sans:"IBM Plex Sans", "Segoe UI", sans-serif;--font-heading:"Space Grotesk", "IBM Plex Sans", sans-serif;--bg:#f4f5f7;--surface:#fff;--surface-2:#e9edf3;--text:#1f2a37;--muted:#6a7685;--brand:#0f7b6c;--brand-strong:#0b5f53;--border:#ced6e0;--radius-md:12px;--radius-lg:20px;--shadow-md:0 10px 24px #00000014}:root[data-theme=midnight]{--bg:#0f141b;--surface:#161e28;--surface-2:#233041;--text:#e6eef8;--muted:#9eb0c4;--brand:#4fc3a5;--brand-strong:#38a286;--border:#2d3e53}body{font-family:var(--font-sans);background:radial-gradient(circle at 0% 0%, var(--surface-2), var(--bg) 45%);color:var(--text);margin:0}.site-shell{min-height:100vh}.site-nav{border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--surface) 90%, transparent);z-index:20;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);align-items:center;gap:.75rem;padding:1rem 1.25rem;display:flex;position:sticky;top:0}.site-nav__link{color:var(--text);border-radius:999px;padding:.45rem .7rem;font-weight:600;text-decoration:none}.site-nav__link:hover{background:var(--surface-2)}.site-main{width:min(1100px,92vw);margin:1.5rem auto 3rem}