:root{color-scheme:dark;--bg:#0b1020;--panel:#121933;--text:#e6ecff;--muted:#9aa7cf;--accent:#5b8cff;--border:#273152}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:980px;margin:0 auto;padding:1.25rem}.topnav{border-bottom:1px solid var(--border);background:rgba(11,16,32,.92)}.topnav-inner{display:flex;gap:1rem;align-items:center;justify-content:space-between}.topnav-links{display:flex;gap:.85rem;flex-wrap:wrap}.muted{color:var(--muted)}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:1rem}ul.clean{padding-left:1.1rem}