/* Gaya tambahan untuk aplikasi */
.sidebar {
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.alert {
    animation: fadeOut 5s forwards;
    opacity: 1;
}

@keyframes fadeOut {
    0% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; display: none; }
}

/* Gaya untuk responsivitas */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        width: 100%;
        height: auto;
    }
    .main-content {
        margin-left: 0;
    }
}