/**
 * article.css
 * yomirank.jp - Individual article page styles
 */

/* Page Layout */
.page-shell {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-xxl);
}

.article-container {
    background: rgba(255,255,255,0.98);
    border-radius: 18px;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    min-height: 400px;
}

/* Article Header */
.article-header {
    border-bottom: 2px solid var(--border-light);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.article-title {
    color: var(--primary-blue);
    font-size: clamp(1.4rem, 3.5vw, 2rem);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    font-weight: 700;
}

.article-meta {
    font-size: 0.85em;
    color: var(--text-light);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Article Content */
.article-content {
    font-size: 1em;
    line-height: 1.9;
    margin-bottom: var(--spacing-xxl);
}

.article-content p {
    margin-bottom: var(--spacing-lg);
}

/* Recommendations Section */
.recommendations-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-light);
}

.recommendations-header {
    margin-bottom: var(--spacing-lg);
}

.recommendations-header h2 {
    color: var(--primary-blue);
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    margin-bottom: var(--spacing-sm);
}

.recommendations-meta {
    font-size: 0.85em;
    color: var(--text-light);
}

/* Book List */
.book-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.book-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: all 0.18s ease;
    cursor: pointer;
    display: flex;
    gap: var(--spacing-md);
    text-decoration: none;
    color: inherit;
}

.book-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-blue);
}

.book-rank {
    flex-shrink: 0;
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-light));
    color: white;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1em;
    font-weight: 700;
}

.book-rank.top3 {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    box-shadow: 0 0 14px rgba(255, 215, 0, 0.35);
}

.book-image {
    flex-shrink: 0;
    width: 90px;
}

.book-image img {
    width: 100%;
    height: 135px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.book-content {
    flex-grow: 1;
    min-width: 0;
}

.book-category {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.7em;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: var(--accent-gold);
    color: var(--primary-dark);
}

.book-title {
    color: var(--primary-blue);
    font-size: clamp(1rem, 2.4vw, 1.15rem);
    margin-bottom: 4px;
    font-weight: 600;
}

.book-author {
    color: var(--text-gray);
    margin-bottom: 6px;
    font-size: 0.85em;
}

.book-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75em;
    color: var(--text-light);
    flex-wrap: wrap;
}

.book-rating {
    color: var(--accent-orange);
    font-weight: 600;
}

.book-point {
    color: var(--text-gray);
    font-size: 0.8em;
    margin-top: 4px;
    font-style: italic;
}

/* News Source */
.news-source {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    font-size: 0.8em;
    color: var(--text-light);
}

.news-source a {
    color: var(--primary-blue);
    text-decoration: none;
}

.news-source a:hover {
    text-decoration: underline;
}

/* SNS Share Buttons */
.share-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-light);
}

.share-section h3 {
    color: var(--primary-blue);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.85em;
    font-weight: 600;
    text-decoration: none;
    color: white;
    transition: all 0.2s ease;
    min-width: 80px;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-btn.x {
    background: #000000;
}

.share-btn.line {
    background: #00B900;
}

.share-btn.hatena {
    background: #00A4DE;
}

.share-btn.facebook {
    background: #1877F2;
}

.share-btn.threads {
    background: #000000;
}

.share-btn.bluesky {
    background: #0085FF;
}

.share-btn.pocket {
    background: #EF3F56;
}

.share-btn.copy-link {
    background: #6B7280;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.share-btn.copy-link:hover {
    background: #4B5563;
}

/* Copy Toast Notification */
.copy-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.copy-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Version Toggle Link */
.version-toggle {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.version-toggle a {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bg-gray-light);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 999px;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.version-toggle a:hover {
    background: var(--primary-blue);
    color: white;
}

/* Navigation */
.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.article-nav a {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 0.9em;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.article-nav a:hover {
    background: var(--bg-gray-light);
}

.article-nav .back-to-home,
.back-to-home,
.article-nav .prev-article {
    display: inline-block;
    margin-top: var(--spacing-lg);
    padding: 12px 24px;
    background: var(--primary-blue);
    color: white !important;
    text-decoration: none;
    border-radius: 999px;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.article-nav .back-to-home:hover,
.back-to-home:hover,
.article-nav .prev-article:hover {
    background: var(--primary-light);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .page-shell {
        padding: var(--spacing-lg);
    }

    .article-container {
        padding: var(--spacing-lg);
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .page-shell {
        padding: var(--spacing-md) var(--spacing-sm) var(--spacing-xl);
    }

    .article-container {
        border-radius: 16px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.12);
        padding: var(--spacing-md);
    }

    .article-title {
        font-size: clamp(1.2rem, 4.2vw, 1.5rem);
    }

    .book-item {
        flex-direction: row;
        align-items: flex-start;
        padding: var(--spacing-md);
    }

    .book-image {
        width: 70px;
    }

    .book-image img {
        height: 110px;
    }

    .book-rank {
        width: 40px;
        height: 40px;
        font-size: 1em;
    }

    .book-meta {
        font-size: 0.72em;
    }

    .share-buttons {
        justify-content: center;
    }

    .share-btn {
        padding: 8px 12px;
        font-size: 0.8em;
        min-width: 70px;
    }
}

@media (max-width: 400px) {
    .book-item {
        position: relative;
        padding: 12px;
        gap: 12px;
    }

    .book-image {
        width: 100px;
    }

    .book-image img {
        height: 150px;
    }

    .book-rank {
        position: absolute;
        top: 10px;
        left: 16px;
        z-index: 5;
        width: 32px;
        height: 32px;
        font-size: 0.85em;
        box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    }

    .book-rank.top3 {
        width: 34px;
        height: 34px;
    }

    .share-btn {
        flex: 1 1 calc(50% - var(--spacing-sm));
        min-width: unset;
    }
}