.preview-overlay-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}
.catalog-preview-image {
…    height: 100% !important;
    object-fit: cover;
    z-index: 1;
}
.catalogs-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.catalog-card {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.catalog-card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.catalog-preview-container {
    width: 100%;
    height: 100%;
    background-color: #f4f4f4;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.catalog-preview-container canvas {
    width: 100% !important;
    height: auto !important;
    object-fit: contain;
}
.catalog-info {
    padding: 15px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.catalog-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}
.btn-download {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 8px 15px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background 0.2s;
}
.btn-download:hover {
    background-color: #0056b3;
    color: #fff;
}
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}