:root{--bg:#05070a;--card:#101827;--text:#f8fafc;--muted:#94a3b8;--primary:#00bfff;--success:#22c55e}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#0b2a3d,var(--bg) 45%);color:var(--text);font-family:Arial,Helvetica,sans-serif}.app{width:min(1100px,100%);margin:0 auto;padding:24px}.login-card{width:min(420px,100%);margin:8vh auto;background:rgba(16,24,39,.94);border:1px solid rgba(0,191,255,.25);border-radius:24px;padding:28px;box-shadow:0 0 50px rgba(0,191,255,.12)}.brand-mark{width:82px;height:82px;margin:0 auto 18px;display:grid;place-items:center;border:2px solid var(--primary);border-radius:22px;color:var(--primary);font-size:34px;font-weight:900;box-shadow:0 0 25px rgba(0,191,255,.35)}h1,h2,p{margin-top:0}p,small{color:var(--muted)}input,button{width:100%;min-height:48px;border-radius:14px;border:1px solid rgba(148,163,184,.3);margin-top:12px;padding:0 14px;font-size:16px}input{background:#020617;color:var(--text)}button{background:linear-gradient(135deg,var(--primary),#2563eb);color:white;font-weight:800;border:none;cursor:pointer}.hidden{display:none}.dashboard header{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:24px}.status{padding:8px 14px;border-radius:999px;background:rgba(34,197,94,.15);color:var(--success);border:1px solid rgba(34,197,94,.35)}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card,.panel{background:rgba(16,24,39,.92);border:1px solid rgba(148,163,184,.15);border-radius:20px;padding:20px}.card span{color:var(--muted);display:block}.card strong{font-size:34px;color:var(--primary)}.panel{margin-top:20px}@media(max-width:760px){.cards{grid-template-columns:repeat(2,1fr)}.dashboard header{align-items:flex-start;flex-direction:column}}@media(max-width:460px){.cards{grid-template-columns:1fr}.app{padding:14px}}