/* 書籍・資料関連のスタイル */

.resources-shortcode {
    margin: 20px 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.resource-item {
    background: #fff;
    border: 1px solid var(--pt-line);
    border-radius: var(--pt-radius);
    box-shadow: var(--pt-card-shadow);
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.resource-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--pt-card-shadow-hover);
    border-color: rgba(47, 143, 126, .45);
}

.resource-thumbnail {
    overflow: hidden;
}

.resource-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.resource-item:hover .resource-thumbnail img {
    transform: scale(1.05);
}

.resource-content {
    padding: 15px;
}

.resource-content h4 {
    margin: 0 0 10px 0;
    font-size: 1.1em;
    line-height: 1.3;
}

.resource-content h4 a {
    color: #333;
    text-decoration: none;
}

.resource-content h4 a:hover {
    color: var(--pt-primary-dark);
}

.resource-author {
    font-size: 0.9em;
    color: #666;
    margin: 5px 0;
}

.resource-type {
    display: inline-block;
    background: var(--pt-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.8em;
    margin: 5px 0;
}

.resource-price {
    font-weight: bold;
    color: var(--pt-accent-dark);
    margin: 5px 0;
}

.resource-rating {
    color: var(--pt-accent);
    margin: 5px 0;
}

.resource-excerpt {
    font-size: 0.9em;
    color: #555;
    margin-top: 10px;
    line-height: 1.4;
}

.resource-more-link {
    text-align: center;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .resources-grid {
        grid-template-columns: 1fr;
    }
}