button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.loading-indicator {
    display: inline-flex;
    align-items: center;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    color: red;
    font-size: 0.8em;
    margin-top: 5px;
    display: block;
}

/* input.ng-touched.ng-invalid {
    border-color: red;
} */