/* Grid Loading Overlay Styles */
.grid-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.grid-spinner-container {
    text-align: center;
}

.grid-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: grid-spin 1s linear infinite;
}

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