:root { --bg:#0f1724; --card:#0b1220; --accent:#7dd3fc; --muted:#9aa4b2; }
*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial}
html,body{height:100%}
body{background:linear-gradient(180deg,var(--bg),#071023);color:#e6eef8;display:flex;align-items:center;justify-content:center}
.center{background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));padding:36px;border-radius:12px;box-shadow:0 10px 30px rgba(2,6,23,0.6);max-width:720px;text-align:center}
h1{font-size:40px;margin-bottom:8px}
.status{font-size:28px;color:var(--accent);font-weight:700;margin-bottom:12px}
.meta{color:var(--muted);margin-bottom:10px}
.hint{color:var(--muted);font-size:14px}

/* subtle pulse */
.status{position:relative}
.status::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-10px;width:48px;height:6px;border-radius:999px;background:linear-gradient(90deg,transparent,rgba(125,211,252,0.18),transparent);animation:pulse 2.2s infinite}
@keyframes pulse{0%{opacity:0.12;transform:translateX(-50%) scaleX(.85)}50%{opacity:1;transform:translateX(-50%) scaleX(1.05)}100%{opacity:0.12;transform:translateX(-50%) scaleX(.85)}}