.alert-box {
    margin-top: 15px;
    margin-bottom: 10px;
    padding: 15px;
    border-radius: 6px;
    font-size: 16px;
}

.success {
    background: #d1fae5;
    color: #065f46;
}

.error {
    background: #fee2e2;
    color: #991b1b;
}

/* Loader CSS */
#loader {
    display: none;
    margin-top: 10px;
    text-align: center;
}

.spinner {
    border: 4px solid #ddd;
    border-top: 4px solid #1e3a8a;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}