.notification {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    padding: 20px;
    border-radius: 5px;
    color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    animation: fadeInOut 3s forwards;
    min-width: 500px;
    text-align: center;
    }

    .notification.success { background-color: #4CAF50; }
    .notification.error { background-color: #F44336; }
    .notification.warning { background-color: #FFC107; }

    @keyframes fadeInOut {
    0% { opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; }
    }