*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:#f4f6f8;color:#18202a}.login-card{width:min(420px,100%);background:#fff;border:1px solid #dbe2ea;border-radius:14px;padding:30px;box-shadow:0 8px 30px #0001}.brand{text-transform:uppercase;letter-spacing:.1em;font-size:.78rem;font-weight:800;color:#2563eb}.login-card h1{margin:8px 0 4px;font-size:1.8rem}.subtitle{margin:0 0 22px;color:#64748b}.login-card label{display:block;font-weight:650;margin:14px 0 6px}.login-card input{display:block;width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit}.login-card input:focus{outline:2px solid #bfdbfe;border-color:#2563eb}.login-card button{width:100%;margin-top:20px;border:0;border-radius:8px;padding:12px;background:#2563eb;color:#fff;font-weight:700;font-size:1rem;cursor:pointer}.message{padding:10px 12px;border-radius:8px;margin:12px 0;font-size:.9rem}.error{background:#fee2e2;color:#991b1b}.success{background:#dcfce7;color:#166534}