/* ============================================
   記事コンテンツスタイル
   home.css と組み合わせて使用
   ============================================ */

/* ============================================
   記事コンテンツ
   ============================================ */
.article-content {
    position: relative;
    max-width: var(--article-content-max-width);
    margin-left: auto;
    margin-right: auto;
    background-color: var(--color-article-bg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
}

/* ヒーローセクションがある場合はパディング調整 */
.article-content.has-hero {
    padding-top: 0;
}

@media (min-width: 768px) {
    .article-content {
        padding: var(--spacing-lg) calc(var(--spacing-lg) * 1.5);
    }

    .article-content.has-hero {
        padding-top: 0;
    }
}

/* ============================================
   カテゴリーバッジ
   ============================================ */
.article-category-badge {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 5;
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background-color: #1a1a1a;
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 500;
    text-decoration: none;
}

.article-category-badge:hover {
    filter: brightness(0.85);
}

/* ============================================
   ヒーローセクション
   ============================================ */
.article-hero {
    position: relative;
    margin: 0 calc(var(--spacing-lg) * -1);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .article-hero {
        margin: 0 calc(var(--spacing-lg) * -1.5);
        margin-bottom: var(--spacing-lg);
    }
}

.article-hero-image {
    width: 100%;
    aspect-ratio: 2.5 / 1;
    object-fit: cover;
    display: block;
}

.article-hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 100%;
    overflow: hidden;
    padding: var(--spacing-md) var(--spacing-lg) 1.25rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
    color: #fff;
}

@media (min-width: 768px) {
    .article-hero-overlay {
        padding: var(--spacing-md) calc(var(--spacing-lg) * 1.5) 1.25rem;
    }
}

.article-hero-date {
    display: inline-block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.4);
    padding: 0.0625rem 0.375rem;
    border-radius: 3px;
    margin-bottom: 0.125rem;
    margin-left: -0.25rem;
}

@media (min-width: 768px) {
    .article-hero-date {
        font-size: 0.875rem;
    }
}

.article-hero-title {
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (min-width: 768px) {
    .article-hero-title {
        font-size: 2.25rem;
    }
}

/* ============================================
   通常ヘッダー（アイキャッチなし）
   ============================================ */
.article-title {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--color-card-text);
}

@media (min-width: 768px) {
    .article-title {
        font-size: 2.25rem;
    }
}

.article-date {
    position: static;
    display: block;
    color: var(--color-card-text);
    font-size: 0.875rem;
    font-weight: normal;
    background: none;
    padding: 0;
    border-radius: 0;
    margin-left: 0;
    margin-bottom: var(--spacing-xs);
}

.article-body {
    margin-top: var(--spacing-lg);
}

.article-body > *:last-child {
    margin-bottom: 0;
}

.article-empty {
    color: var(--color-card-text);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

/* ============================================
   ブロック共通
   ============================================ */
.block-text,
.block-heading,
.block-image,
.block-gallery,
.block-compare,
.block-link,
.block-movie,
.block-code,
.block-table,
.block-exif {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   見出しブロック
   ============================================ */
.block-heading {
    padding: 0.5em 1em;
    border-radius: 0;
    line-height: 1.4;
    scroll-margin-top: 80px; /* 固定ヘッダー対策 */
}

.block-heading-h1,
.block-heading-h2 {
    font-weight: 700;
    padding: 0.3em 0.75em;
}

.block-heading-h3,
.block-heading-h4,
.block-heading-h5 {
    font-weight: 600;
}

.block-heading-h3 {
    padding-top: 0.3em;
    padding-bottom: 0.3em;
    border-top: 3px solid var(--heading-border-color);
    border-bottom: 3px solid var(--heading-border-color);
}

.block-heading-h4 {
    padding-bottom: 0.2em;
    border-bottom: 2px solid var(--heading-border-color);
}

.block-heading-h5 {
    padding-bottom: 0.2em;
    border-bottom: 2px solid var(--heading-border-color);
}

/* ============================================
   目次ブロック
   ============================================ */
.block-toc {
    margin-bottom: var(--spacing-lg);
    margin-left: auto;
    margin-right: auto;
    padding: 1em 1.5em;
    background-color: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    width: fit-content;
    max-width: 100%;
}

.toc-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 0.75em;
    padding-bottom: 0.5em;
    border-bottom: 1px solid var(--color-border);
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 折りたたみ時のスタイル（toc-collapsible クラスがある場合のみ） */
.block-toc.toc-collapsible:not(.toc-expanded) .toc-list {
    max-height: calc(var(--collapse-rows, 10) * 1.6 * 0.9375rem + var(--collapse-rows, 10) * 0.5em);
    overflow: hidden;
    position: relative;
}

.block-toc.toc-collapsible:not(.toc-expanded) .toc-list::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2em;
    background: linear-gradient(to bottom, transparent, #f8fafc);
    pointer-events: none;
}

.block-toc.toc-collapsible.toc-expanded .toc-list {
    max-height: none;
}


.toc-item {
    margin: 0.25em 0;
}

.toc-depth-0 { padding-left: 0; }
.toc-depth-1 { padding-left: 1.5em; }
.toc-depth-2 { padding-left: 3em; }
.toc-depth-3 { padding-left: 4.5em; }
.toc-depth-4 { padding-left: 6em; }

.toc-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9375rem;
    line-height: 1.6;
    display: inline-block;
    transition: color 0.2s;
}

.toc-link:hover {
    color: #0066cc;
}

.toc-number {
    display: inline-block;
    min-width: 2em;
    text-align: right;
    color: var(--color-text-muted);
    margin-right: 0.5em;
}

.toc-toggle {
    display: block;
    width: 100%;
    margin-top: 0.75em;
    padding: 0.5em;
    background: none;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    color: #64748b;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.toc-toggle:hover {
    background-color: #f1f5f9;
    color: #334155;
}

.block-toc:not(.toc-expanded) .toc-toggle-less,
.block-toc.toc-expanded .toc-toggle-more {
    display: none;
}

.toc-item {
    overflow-wrap: break-word;
    word-break: break-word;
}

.toc-empty {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin: 0;
}

@media (max-width: 768px) {
    .block-toc {
        width: auto;
        min-width: 0 !important;
        overflow: hidden;
    }

    .toc-depth-2 { padding-left: 2em; }
    .toc-depth-3 { padding-left: 3em; }
    .toc-depth-4 { padding-left: 4em; }
}

.block-empty {
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-md);
    background-color: #f5f5f5;
    border-radius: 4px;
}

/* ============================================
   テキストブロック
   ============================================ */
.block-text {
    /* Quill.js の出力を整形 */
    line-height: 1.8;
}

.block-text p {
    margin: 0;
}

.block-text p:last-child {
    margin-bottom: 0;
}

/* Quillの空行（<p><br></p>）の余白 */
.block-text p:has(> br:only-child) {
    margin: 0;
    line-height: 1.1;
}

/* マーカースタイル（蛍光ペン風：行折り返し時も途切れず表示） */
.block-text span[style*="linear-gradient"] {
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}

.block-text a {
    color: #0066cc;
    text-decoration: underline;
}

.block-text strong {
    font-weight: 700;
}

.block-text em {
    font-style: italic;
}

/* Quill互換リストスタイル */
.block-text ul,
.block-text ol {
    margin: 0 0 1em 0;
    padding-left: 0;
    line-height: 1.4;
    list-style-type: none;
}

.block-text li {
    margin: 0;
    padding-left: 1.5em;
    line-height: inherit;
}

.block-text li::before {
    margin-left: -1.5em;
    margin-right: 0.3em;
    text-align: right;
    width: 1.2em;
    display: inline-block;
}

/* 番号付きリスト */
.block-text ol {
    counter-reset: list-0;
}

.block-text ol > li {
    counter-increment: list-0;
}

.block-text ol > li::before {
    content: counter(list-0, decimal) '. ';
}

/* 番号付きリスト インデント階層 */
.block-text ol > li.ql-indent-1 {
    counter-increment: list-1;
    counter-reset: list-2;
    padding-left: 3em;
}
.block-text ol > li.ql-indent-1::before {
    content: counter(list-1, lower-alpha) '. ';
    margin-left: -3em;
    width: 2.7em;
}

.block-text ol > li.ql-indent-2 {
    counter-increment: list-2;
    padding-left: 4.5em;
}
.block-text ol > li.ql-indent-2::before {
    content: counter(list-2, lower-roman) '. ';
    margin-left: -4.5em;
    width: 4.2em;
}

/* 箇条書きリスト */
.block-text ul > li::before {
    content: '\2022';
}

/* 箇条書きリスト インデント階層（manage側と同じく全て黒丸） */
.block-text ul > li.ql-indent-1 {
    padding-left: 3em;
}
.block-text ul > li.ql-indent-1::before {
    content: '\2022';
    margin-left: -3em;
    width: 2.7em;
}

.block-text ul > li.ql-indent-2 {
    padding-left: 4.5em;
}
.block-text ul > li.ql-indent-2::before {
    content: '\2022';
    margin-left: -4.5em;
    width: 4.2em;
}

/* ============================================
   リンクブロック
   ============================================ */
.block-link,
.block-link:visited {
    display: flex;
    align-items: stretch;
    min-height: 75px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    color: var(--color-card-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.block-link:hover {
    border-color: #94a3b8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.block-link-image {
    position: relative;
    width: 120px;
    min-height: 75px;
    flex-shrink: 0;
    background-color: #f1f5f9;
}

.block-link-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.block-link-icon {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
}

.block-link-icon-amazon {
    color: #d97706;
    background-color: #fffbeb;
}

.block-link-icon svg {
    width: 32px;
    height: 32px;
}

.block-link-content {
    flex: 1;
    min-width: 0;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.block-link-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-card-text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.block-link-description {
    font-size: 0.8125rem;
    color: var(--color-card-text-muted);
    line-height: 1.5;
    margin-top: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.block-link-domain {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.block-link-domain svg {
    width: 12px;
    height: 12px;
}

@media (max-width: 480px) {
    .block-link {
        min-height: 50px;
    }

    .block-link-image {
        width: 80px;
        min-height: 50px;
    }

    .block-link-content {
        padding: 10px 12px;
    }

    .block-link-title {
        font-size: 0.875rem;
    }

    .block-link-description {
        font-size: 0.75rem;
        -webkit-line-clamp: 1;
    }
}

/* ============================================
   イメージブロック
   ============================================ */
.block-image {
    /* ブロック自体は幅100% */
}

.block-image figure {
    margin: 0 auto;
}

.block-image img {
    width: 100%;
    border-radius: 4px;
}

.block-image figcaption {
    text-align: center;
    font-size: 0.85em;
    color: #666;
    margin-top: 0.4em;
}

/* ============================================
   ギャラリーブロック
   ============================================ */
.block-gallery {
    /* ギャラリー全体 */
}

.gallery-pickups {
    margin-bottom: var(--spacing-md);
}

.gallery-pickup {
    margin: 0 auto var(--spacing-sm) auto;
}

.gallery-pickup img {
    width: 100%;
    border-radius: 4px;
}

.gallery-grid {
    display: grid;
    gap: var(--spacing-xs);
    grid-template-columns: repeat(var(--columns-mobile, 2), 1fr);
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(var(--columns-pc, 4), 1fr);
    }
}

.gallery-item {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 4px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* CSS変数をdata属性から設定するためのJS補助用 */
.block-gallery[data-columns-pc="2"] .gallery-grid { --columns-pc: 2; }
.block-gallery[data-columns-pc="3"] .gallery-grid { --columns-pc: 3; }
.block-gallery[data-columns-pc="4"] .gallery-grid { --columns-pc: 4; }
.block-gallery[data-columns-pc="5"] .gallery-grid { --columns-pc: 5; }
.block-gallery[data-columns-pc="6"] .gallery-grid { --columns-pc: 6; }
.block-gallery[data-columns-pc="7"] .gallery-grid { --columns-pc: 7; }
.block-gallery[data-columns-pc="8"] .gallery-grid { --columns-pc: 8; }

.block-gallery[data-columns-mobile="1"] .gallery-grid { --columns-mobile: 1; }
.block-gallery[data-columns-mobile="2"] .gallery-grid { --columns-mobile: 2; }
.block-gallery[data-columns-mobile="3"] .gallery-grid { --columns-mobile: 3; }
.block-gallery[data-columns-mobile="4"] .gallery-grid { --columns-mobile: 4; }

/* ============================================
   動画ブロック
   ============================================ */
.block-movie {
    margin-left: auto;
    margin-right: auto;
}

.block-movie-upload video {
    width: 100%;
    border-radius: 4px;
    background-color: #000;
}

.block-movie-external .block-movie-embed {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 アスペクト比 */
    height: 0;
    overflow: hidden;
    border-radius: 4px;
}

.block-movie-external .block-movie-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    border: 0;
}

.block-movie-title {
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
}

/* ============================================
   EXIFテーブル
   ============================================ */
.exif-table {
    width: 100%;
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
    border: 1px solid #d1d5db;
    border-radius: 4px;
    overflow: hidden;
}

.exif-row {
    display: grid;
}

.exif-row.border-top {
    border-top: 1px solid #d1d5db;
}

.exif-cell {
    text-align: center;
}

.exif-cell.border-left {
    border-left: 1px solid #d1d5db;
}

.exif-title {
    background-color: #e5e7eb;
    color: var(--color-text-muted);
    padding: 0.25rem 0.5rem;
    font-weight: 500;
}

.exif-value {
    padding: 0.25rem 0.5rem;
    color: var(--color-text);
}

/* ============================================
   前後記事ナビゲーション
   ============================================ */
.adjacent-articles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.adjacent-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-card-text, #1a1a1a);
    border-radius: 8px;
    padding: var(--spacing-xs);
    background: #fafafa;
    transition: background-color 0.2s;
}

.adjacent-card:hover {
    background: #f0f0f0;
}

.adjacent-card.empty {
    background: transparent;
}

.adjacent-card.prev {
    flex-direction: row;
}

.adjacent-card.next {
    flex-direction: row-reverse;
    text-align: right;
}

.adjacent-label {
    display: none;
}

.adjacent-arrow {
    font-size: 1.25rem;
    color: var(--color-card-text-muted, #6b7280);
    flex-shrink: 0;
    line-height: 1;
}

.adjacent-card:hover .adjacent-arrow {
    color: var(--color-card-text, #1a1a1a);
}

.adjacent-thumbnail {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 4px;
}

.adjacent-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.adjacent-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
}

.adjacent-info {
    flex: 1;
    min-width: 0;
}

.adjacent-meta {
    display: flex;
    align-items: center;
    gap: 0.5em;
    margin-bottom: 0.125rem;
}

.adjacent-card.next .adjacent-meta {
    justify-content: flex-end;
}

.adjacent-info-label {
    font-size: 0.625rem;
    color: var(--color-card-text-muted, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.adjacent-date {
    font-size: 0.625rem;
    color: var(--color-card-text-muted, #6b7280);
}

.adjacent-title {
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 767px) {
    .adjacent-arrow {
        display: none;
    }

    .adjacent-meta {
        flex-wrap: nowrap;
    }

    .adjacent-info-label,
    .adjacent-date {
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .adjacent-articles {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }

    .adjacent-thumbnail {
        width: 50px;
        height: 50px;
    }

    .adjacent-title {
        font-size: 0.75rem;
    }
}

/* ============================================
   コードブロック
   ============================================ */
.block-code {
    margin-bottom: var(--spacing-lg);
}

.block-code pre {
    margin: 0;
    border-radius: 4px;
    font-size: 0.875rem;
    line-height: 1.5;
}

.block-code pre code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

/* Prism.js テーマの上書き */
.block-code pre[class*="language-"] {
    padding: 1em 1.25em;
    background: #2d2d2d;
}

.block-code code[class*="language-"] {
    font-size: 0.875rem;
}

@media (max-width: 480px) {
    .block-code pre[class*="language-"] {
        padding: 0.875em 1em;
        font-size: 0.8125rem;
    }

    .block-code code[class*="language-"] {
        font-size: 0.8125rem;
    }
}

/* ============================================
   テーブルブロック
   ============================================ */
.block-table {
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}

.block-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.block-table th,
.block-table td {
    border: 1px solid #d1d5db;
    padding: 0.625em 0.875em;
    text-align: left;
}

.block-table th {
    background-color: #e5e7eb;
    font-weight: 600;
    color: var(--color-text);
}

.block-table td {
    background-color: var(--color-card);
    color: var(--color-card-text);
}

@media (max-width: 480px) {
    .block-table table {
        font-size: 0.8125rem;
    }

    .block-table th,
    .block-table td {
        padding: 0.5em 0.625em;
    }
}