:root{--bg:#12110f;--card:#1c1a17;--ink:#f3ece3;--muted:#9a9186;--line:#2c2924;--accent:#d9783a;--sans:system-ui, sans-serif}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{color:var(--ink);background:radial-gradient(1200px 500px at 50% -10%, #d9783a29, transparent 55%), var(--bg);font:16px/1.5 var(--sans)}.shell{place-items:center;min-height:100svh;padding:32px 20px;display:grid}.brand{letter-spacing:-.03em;margin:0;font-weight:600;position:fixed;top:22px;left:24px}.brand span{color:var(--accent)}.card{border:1px solid var(--line);background:var(--card);text-align:center;border-radius:16px;width:min(420px,100%);padding:28px 24px}.card.is-fail{border-color:#5a3a32}.pulse{background:var(--accent);border-radius:50%;width:10px;height:10px;margin:0 auto 14px;animation:1.1s ease-in-out infinite pulse;display:block}.card.is-fail .pulse{display:none}.card h1{letter-spacing:-.03em;margin:0 0 8px;font-size:22px}#status{color:var(--muted);margin:0}@keyframes pulse{0%,to{opacity:.55;transform:scale(1)}50%{opacity:1;transform:scale(1.45)}}