.pdf-thumbnail-container {
    position: relative;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pdf-thumbnail-canvas {
    display: none;
    width: 100%;
    height: auto;
    object-fit: cover;
}
.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #64748b;
    font-size: 0.875rem;
    font-weight: 500;
}
.certificate-thumb.pdf-thumbnail-container {
    min-height: 400px;
}
.catalog-card-media.pdf-thumbnail-container {
    min-height: 300px;
}