.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 6px solid #f3f3f3;
    border-top: 6px solid #3498db;
    animation: spin 1s linear infinite;
}

.loading-text {
    color: white;
    font-size: 18px;
    margin-top: 15px;
    text-align: center;
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loading-progress {
    width: 200px;
    height: 10px;
    background-color: #f3f3f3;
    border-radius: 5px;
    margin-top: 15px;
    overflow: hidden;
}

.loading-progress-bar {
    height: 100%;
    width: 0%;
    background-color: #3498db;
    border-radius: 5px;
    transition: width 0.3s ease;
}

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