.content-area {
    margin-left: var(--sidebar-width);
    flex: 1;
    background-color: var(--content-bg);
    padding: 56px 72px 40px;
    font-size: var(--base-font-size, 1rem);
}

/* Position mobile header above preview images on small/mobile screens */
@media (max-width: 1023px) {
    .content-area {
        padding-top: 0;
    }
    
    .mobile-header {
        margin-left: 0;
        margin-bottom: 20px;
    }
}

.previews-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.preview-card {
    position: relative;
    background-color: var(--tile-bg);
    /* border-radius: 12px; */
    overflow: hidden;
    cursor: pointer;
}

.preview-card__image-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    background-color: #0d111a;
    overflow: hidden;
}

.preview-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.25s ease;
}

.preview-card:hover .preview-card__image,
.preview-card:focus-within .preview-card__image {
    transform: scale(1.1);
}

.preview-card__title {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    padding: 12px 16px;
    background-color: var(--tile-title-bg);
    color: var(--tile-title-color);
    font-size: var(--preview-title-font-size, 1rem);
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.preview-card__title-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-card__type-label {
    font-size: 0.8rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    flex-shrink: 0;
}

.preview-card__link {
    position: absolute;
    inset: 0;
    text-indent: -9999px;
    overflow: hidden;
}

.no-content-placeholder {
    padding: 40px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

/* Responsive design for screens < 1024px */
@media (max-width: 1440px) {
    .content-area {
        padding: 44px 44px 44px;
    }

    .previews-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Mobile responsive styles for screens < 768px */
@media (max-width: 768px) {
    .content-area {
        padding: 36px 20px 40px;
    }

    .previews-grid {
        grid-template-columns: 1fr;
    }
}