:root{--accent:#2563eb}*{box-sizing:border-box}body{color:#1a1a1a;background:#fff;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}.topbar{border-bottom:1px solid #e5e7eb;justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1.25rem;display:flex}.topbar a{color:inherit;font-weight:600;text-decoration:none}.adminnav{align-items:center;gap:1rem;display:flex}.adminnav button{padding:.35rem .75rem}.topbar a:hover{color:var(--accent)}.content{max-width:760px;margin:0 auto;padding:1.5rem 1.25rem}button{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:.5rem 1rem}button:disabled{opacity:.5;cursor:not-allowed}