.button-loading {
    display: inline-block;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

#success-message, #error-message {
    display: none;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
}

#success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

#error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Notification Popup */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 20px 25px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 10000;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease-in-out;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 350px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification.success {
    background: #10b981;
    border-left: 4px solid #059669;
}

.notification.error {
    background: #ef4444;
    border-left: 4px solid #dc2626;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.notification-message {
    flex: 1;
    line-height: 1.4;
}