body {
            background: radial-gradient(at 0% 0%, #0b0e14 0, transparent 50%),
                        radial-gradient(at 50% 0%, #1e2a4a 0, transparent 50%),
                        radial-gradient(at 100% 0%, #3a1c3d 0, transparent 50%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .auth-card {
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            padding: 2.5rem;
            width: 100%;
            max-width: 420px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .form-control {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.15);
            color: #fff;
        }

        .form-control:focus {
            border-color: #6f7dff;
            box-shadow: 0 0 10px rgba(111,125,255,0.3);
        }