*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 20%,#263b78 0,#070b14 36%,#03050b 100%);font-family:"Segoe UI",Tahoma,Arial,sans-serif;color:#fff;display:grid;place-items:center}.auth-shell{width:min(440px,92vw)}.login-card{background:rgba(8,13,28,.86);border:1px solid rgba(255,255,255,.12);box-shadow:0 30px 80px rgba(0,0,0,.5);border-radius:30px;padding:30px;display:grid;gap:16px}.login-mark{width:72px;height:72px;border-radius:24px;background:linear-gradient(135deg,#73fbd3,#7a5cff);display:grid;place-items:center;color:#06111d;font-weight:900}.login-card h1{margin:0;font-size:24px}.login-card p{margin:0;color:#aeb8d5}.login-card label{display:grid;gap:8px;color:#d9e2ff}.login-card input{border:1px solid rgba(255,255,255,.14);background:#0b1223;color:#fff;border-radius:16px;padding:14px}.login-card button{border:0;border-radius:18px;padding:14px;background:#73fbd3;color:#06111d;font-weight:900}.auth-flash{background:#3b1620;border:1px solid #ff7591;color:#ffdbe2;padding:12px;border-radius:14px}