.login-card {
            margin-top: 20px;
        }
        .btn-login {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0.6; 
            box-shadow: none;
        }
        .btn-login.active-ready {
            opacity: 1; 
            filter: brightness(1.05); 
            box-shadow: 0 0 20px rgba(255, 117, 140, 0.7), 0 4px 10px rgba(255, 117, 140, 0.4); 
            transform: translateY(-1px);
        }