body {
            min-height: 100vh;
            background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 55%, #38bdf8 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
        }
        .login-card {
            width: 100%;
            max-width: 430px;
            border: 0;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(15,23,42,.25);
            overflow: hidden;
        }
        .brand {
            background: rgba(255,255,255,.08);
            color: #fff;
            padding: 28px 28px 20px;
        }
        .brand h3 { margin: 0 0 8px; }
        .brand p { margin: 0; opacity: .9; }
        .form-area { padding: 28px; background: #fff; }