:root{--bg:#f4f6f9;--panel:#ffffff;--border:#dde3ea;--text:#16212e;--muted:#5b6b7c;--accent:#1f6feb;--accent-text:#ffffff;--danger:#b42318;--ok:#067647;font-size:16px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}h1{font-size:1.45rem;margin:0 0 1rem}h2{font-size:1.1rem;margin:1.5rem 0 .5rem}.shell{display:flex;min-height:100vh}.sidebar{width:230px;flex-shrink:0;background:#101a26;color:#cdd8e4;padding:1rem .75rem}.sidebar .brand{color:#fff;font-weight:700;font-size:1.1rem;padding:.25rem .75rem 1rem;display:block}.sidebar nav a{display:block;color:inherit;padding:.45rem .75rem;border-radius:6px;font-size:.92rem}.sidebar nav a:hover{background:#1c2a3a;color:#fff}.content{flex:1 1;padding:1.5rem 2rem;max-width:1100px}.topbar{display:flex;justify-content:flex-end;gap:1rem;align-items:center;margin-bottom:1.25rem;font-size:.9rem;color:var(--muted)}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1.1rem 1.25rem}.card,.cards{margin-bottom:1rem}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));grid-gap:1rem;gap:1rem}.metric .label{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.metric .value{font-size:1.5rem;font-weight:700;margin-top:.25rem}table{width:100%;border-collapse:collapse;font-size:.92rem}td,th{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase}.button,button{background:var(--accent);color:var(--accent-text);border:0;border-radius:7px;padding:.5rem 1rem;font-size:.92rem;cursor:pointer;display:inline-block}button:disabled{opacity:.5;cursor:not-allowed}.button.secondary,button.secondary{background:#e7edf5;color:var(--text)}form.stack{display:flex;flex-direction:column;gap:.75rem;max-width:26rem}label{font-size:.85rem;color:var(--muted);display:block;margin-bottom:.25rem}input,select{width:100%;padding:.5rem .65rem;border:1px solid var(--border);border-radius:7px;font-size:.95rem;background:#fff}.error{color:var(--danger);font-size:.9rem}.success{color:var(--ok);font-size:.9rem}.muted{color:var(--muted);font-size:.9rem}.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:2rem}.auth-card{width:100%;max-width:26rem;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:2rem}.badge{display:inline-block;border-radius:999px;padding:.1rem .6rem;font-size:.75rem;background:#e7edf5;color:var(--muted)}.gate-timer{font-size:3rem;font-weight:700;text-align:center;margin:1rem 0}