@charset "UTF-8";
/* tools/ogp/css/style.css */
/* ============================================================
   OGPシミュレーター - DAs Gaming Tools
   ============================================================
   
   NOTE: -webkit-line-clamp / -webkit-box-orient について
   複数行テキストの省略表示（...）に使用。標準の line-clamp は
   まだ実験的なため、-webkit- プレフィックスが必要（Chrome/Safari/Edge対応）。
   これは各SNSの実際のUIを忠実に再現するために意図的に使用。
   参考: https://caniuse.com/css-line-clamp
   
   NOTE: SNSカードのハードコードカラーについて
   Twitter, Facebook, Discord等の実際のUIカラーを再現するため、
   意図的にプラットフォーム固有のカラーコードを使用（CSS変数ではなく）。
   ============================================================ */

/* ============================================================
   1. ツール固有変数
   ============================================================ */
:root {
    --ogp-card-bg: rgba(var(--color-black-rgb), 0.3);
    --ogp-preview-radius: var(--radius-lg);
}

/* ============================================================
   2. モード切替タブ
   ============================================================ */
.mode-tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: var(--spacing-md);
}

.mode-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
}

.mode-tab:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-text);
}

.mode-tab.active {
    background: rgba(var(--color-accent-primary-rgb), 0.15);
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

/* ============================================================
   3. 入力セクション
   ============================================================ */
.input-section.hidden {
    display: none;
}

.input-with-button {
    display: flex;
    gap: var(--spacing-sm);
}

.input-with-button input {
    flex: 1;
}

.options-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.select-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.875rem;
    min-height: 36px;
}

.select-sm:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.char-counter {
    text-align: right;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.hint-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================================
   4. 画像アップロードエリア
   ============================================================ */
.image-upload-area {
    border: 2px dashed var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-upload-area:hover,
.image-upload-area.dragover {
    border-color: var(--color-accent-primary);
    background: rgba(var(--color-accent-primary-rgb), 0.05);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
}

.upload-placeholder .icon {
    font-size: 2rem;
}

.upload-preview {
    position: relative;
    max-width: 100%;
}

.upload-preview img {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
}

.upload-preview.hidden,
.upload-placeholder.hidden {
    display: none;
}

.btn-remove {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: var(--color-error);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================================
   5. SNS選択タブ
   ============================================================ */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.theme-toggle-preview {
    display: flex;
    gap: var(--spacing-xs);
}

.theme-btn {
    width: 36px;
    height: 36px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover {
    border-color: var(--color-accent-secondary);
}

.theme-btn.active {
    background: rgba(var(--color-accent-secondary-rgb), 0.2);
    border-color: var(--color-accent-secondary);
}

.sns-tabs {
    display: flex;
    gap: var(--spacing-xs);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    scrollbar-width: thin;
}

.sns-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    min-height: 44px;
}

.sns-tab:hover {
    border-color: var(--color-accent-secondary);
    color: var(--color-text);
}

.sns-tab.active {
    background: rgba(var(--color-accent-secondary-rgb), 0.15);
    border-color: var(--color-accent-secondary);
    color: var(--color-accent-secondary);
}

.sns-tab .icon {
    font-weight: bold;
}

/* ============================================================
   6. プレビューコンテナ
   ============================================================ */
.preview-container {
    background: var(--ogp-card-bg);
    border-radius: var(--ogp-preview-radius);
    padding: var(--spacing-xl);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-container.theme-light-preview {
    background: rgba(255, 255, 255, 0.95);
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-muted);
    text-align: center;
}

.preview-placeholder .icon {
    font-size: 3rem;
    opacity: 0.5;
}

.sns-preview {
    width: 100%;
    max-width: 550px;
}

.sns-preview.hidden {
    display: none;
}

/* ============================================================
   7. Twitter カード
   ============================================================ */
.twitter-card {
    background: #15202b;
    border: 1px solid #38444d;
    border-radius: 16px;
    overflow: hidden;
}

.preview-container.theme-light-preview .twitter-card {
    background: #ffffff;
    border-color: #cfd9de;
}

.twitter-card .card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1.91 / 1;
    overflow: hidden;
}

.twitter-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.twitter-card .card-content {
    padding: 12px;
}

.twitter-card .card-title {
    font-size: 15px;
    font-weight: 400;
    color: #e7e9ea;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-container.theme-light-preview .twitter-card .card-title {
    color: #0f1419;
}

.twitter-card .card-desc {
    font-size: 15px;
    color: #8b98a5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.twitter-card .card-url {
    font-size: 15px;
    color: #8b98a5;
    margin-top: 4px;
}

/* Preview Patterns (複数パターン表示用) */
.preview-patterns {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 100%;
}

.pattern-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pattern-label {
    font-size: 0.75rem;
    font-family: monospace;
    color: var(--color-accent-secondary);
    background: rgba(var(--color-accent-secondary-rgb), 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: inline-block;
    width: fit-content;
}

/* Twitter Summary Card (正方形左寄せ) */
.twitter-card.twitter-summary {
    display: flex;
    flex-direction: row;
}

.twitter-card.twitter-summary .card-image-small {
    width: 130px;
    height: 130px;
    flex-shrink: 0;
    overflow: hidden;
}

.twitter-card.twitter-summary .card-image-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.twitter-card.twitter-summary .card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
}

.twitter-card.twitter-summary .card-url {
    order: -1;
    margin-bottom: 2px;
    margin-top: 0;
}

.twitter-card.twitter-summary .card-title {
    margin-bottom: 2px;
}

/* ============================================================
   8. Facebook カード
   ============================================================ */
.facebook-card {
    background: #242526;
    border: 1px solid #3e4042;
    border-radius: 8px;
    overflow: hidden;
}

.preview-container.theme-light-preview .facebook-card {
    background: #ffffff;
    border-color: #dddfe2;
}

.facebook-card .card-image {
    width: 100%;
    aspect-ratio: 1.91 / 1;
    overflow: hidden;
}

.facebook-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.facebook-card .card-content {
    padding: 10px 12px;
    background: #3a3b3c;
}

.preview-container.theme-light-preview .facebook-card .card-content {
    background: #f2f3f5;
}

.facebook-card .card-url {
    font-size: 12px;
    color: #b0b3b8;
    text-transform: uppercase;
    margin-bottom: 2px;
}

.facebook-card .card-title {
    font-size: 16px;
    font-weight: 600;
    color: #e4e6eb;
    margin-bottom: 4px;
}

.preview-container.theme-light-preview .facebook-card .card-title {
    color: #050505;
}

.facebook-card .card-desc {
    font-size: 14px;
    color: #b0b3b8;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

/* Facebook Small Card (小画像左寄せ) */
.facebook-card.facebook-small {
    display: flex;
    flex-direction: row;
}

.facebook-card.facebook-small .card-image-small {
    width: 158px;
    height: 158px;
    flex-shrink: 0;
    overflow: hidden;
}

.facebook-card.facebook-small .card-image-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.facebook-card.facebook-small .card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ============================================================
   9. LINE カード
   ============================================================ */
.line-card {
    background: #1a1a1a;
    border-radius: 12px;
    overflow: hidden;
    max-width: 280px;
}

.preview-container.theme-light-preview .line-card {
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.line-card .card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.line-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.line-card .card-content {
    padding: 10px;
}

.line-card .card-title {
    font-size: 14px;
    font-weight: 600;
    color: #e0e0e0;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-container.theme-light-preview .line-card .card-title {
    color: #111111;
}

.line-card .card-desc {
    font-size: 12px;
    color: #8c8c8c;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* LINE Wide Card (タイムライン横長) */
.line-card.line-wide {
    max-width: 400px;
}

.line-card.line-wide .card-image-wide {
    width: 100%;
    aspect-ratio: 1.91 / 1;
    overflow: hidden;
}

.line-card.line-wide .card-image-wide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================================
   10. はてなブックマーク カード
   ============================================================ */
.hatena-card {
    background: #1c1c1c;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    gap: var(--spacing-sm);
}

.preview-container.theme-light-preview .hatena-card {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

.hatena-card .card-image {
    position: relative;
    width: 120px;
    height: 84px;
    flex-shrink: 0;
    overflow: hidden;
}

.hatena-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hatena-card .card-content {
    padding: 8px;
    flex: 1;
}

.hatena-card .card-title {
    font-size: 14px;
    font-weight: 600;
    color: #007fca;
    margin-bottom: 4px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.hatena-card .card-desc {
    font-size: 12px;
    color: #8c8c8c;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Hatena Entry (エントリーページ大画像) */
.hatena-card.hatena-entry {
    flex-direction: column;
    max-width: 400px;
}

.hatena-card.hatena-entry .card-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1.43 / 1;
}

/* Hatena List (リスト表示小画像) */
.hatena-card.hatena-list {
    display: flex;
    flex-direction: row;
}

.hatena-card.hatena-list .card-image-small {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    overflow: hidden;
}

.hatena-card.hatena-list .card-image-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================================
   11. Discord Embed
   ============================================================ */
.discord-embed {
    background: #2f3136;
    border-left: 4px solid #5865f2;
    border-radius: 4px;
    padding: 8px 16px 16px 12px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.preview-container.theme-light-preview .discord-embed {
    background: #f2f3f5;
}

.discord-embed .embed-sitename {
    font-size: 12px;
    color: #dcddde;
}

.discord-embed .embed-title {
    font-size: 16px;
    font-weight: 600;
    color: #00aff4;
}

.discord-embed .embed-desc {
    font-size: 14px;
    color: #dcddde;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.preview-container.theme-light-preview .discord-embed .embed-desc,
.preview-container.theme-light-preview .discord-embed .embed-sitename {
    color: #4f5660;
}

.discord-embed .embed-image {
    margin-top: var(--spacing-sm);
    border-radius: 4px;
    overflow: hidden;
    max-width: 400px;
}

.discord-embed .embed-image img {
    width: 100%;
    height: auto;
}

/* Discord Thumbnail (サムネイル右寄せ) */
.discord-embed.discord-thumbnail {
    display: flex;
    flex-direction: row;
}

.discord-embed.discord-thumbnail .embed-content {
    flex: 1;
}

.discord-embed.discord-thumbnail .embed-thumbnail {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    margin-left: var(--spacing-md);
    border-radius: 4px;
    overflow: hidden;
}

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

/* ============================================================
   12. Slack Unfurl
   ============================================================ */
.slack-unfurl {
    background: #1a1d21;
    border-left: 4px solid #e8912d;
    border-radius: 4px;
    padding: 8px 12px;
    display: flex;
    gap: var(--spacing-md);
}

.preview-container.theme-light-preview .slack-unfurl {
    background: #ffffff;
    border: 1px solid #dddddd;
    border-left: 4px solid #e8912d;
}

.slack-unfurl .unfurl-content {
    flex: 1;
}

.slack-unfurl .unfurl-sitename {
    font-size: 12px;
    font-weight: 700;
    color: #d1d2d3;
    margin-bottom: 4px;
}

.preview-container.theme-light-preview .slack-unfurl .unfurl-sitename {
    color: #1d1c1d;
}

.slack-unfurl .unfurl-title {
    font-size: 15px;
    font-weight: 700;
    color: #1d9bd1;
    margin-bottom: 4px;
}

.slack-unfurl .unfurl-desc {
    font-size: 14px;
    color: #d1d2d3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.preview-container.theme-light-preview .slack-unfurl .unfurl-desc {
    color: #616061;
}

.slack-unfurl .unfurl-image {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

.slack-unfurl .unfurl-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Slack Large Card (大画像縦並び) */
.slack-unfurl.slack-large {
    flex-direction: column;
}

.slack-unfurl.slack-large .unfurl-content-full {
    margin-bottom: var(--spacing-sm);
}

.slack-unfurl.slack-large .unfurl-image-large {
    width: 100%;
    max-width: 360px;
    border-radius: 4px;
    overflow: hidden;
}

.slack-unfurl.slack-large .unfurl-image-large img {
    width: 100%;
    height: auto;
}

/* ============================================================
   13. Google検索スニペット
   ============================================================ */
.google-snippet {
    max-width: 600px;
}

.google-snippet .snippet-url {
    font-size: 14px;
    color: #bdc1c6;
    margin-bottom: 4px;
}

.preview-container.theme-light-preview .google-snippet .snippet-url {
    color: #202124;
}

.google-snippet .snippet-title {
    font-size: 20px;
    color: #8ab4f8;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-container.theme-light-preview .google-snippet .snippet-title {
    color: #1a0dab;
}

.google-snippet .snippet-desc {
    font-size: 14px;
    color: #bdc1c6;
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.preview-container.theme-light-preview .google-snippet .snippet-desc {
    color: #4d5156;
}

.char-info {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    text-align: center;
}

/* ============================================================
   14. トリミングガイド
   ============================================================ */
.trim-guide {
    position: absolute;
    pointer-events: none;
}

.trim-guide.line-guide {
    /* LINEの正方形ガイド（中央630px） */
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 52.5%;
    /* 630/1200 */
    border-left: 2px dashed rgba(var(--color-warning-rgb), 0.8);
    border-right: 2px dashed rgba(var(--color-warning-rgb), 0.8);
}

.trim-guide.square-guide {
    /* LINE正方形プレビュー用 - 外側をマスク */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    box-shadow: inset 0 0 0 2px rgba(var(--color-success-rgb), 0.8);
}

.trim-guide.hatena-guide {
    /* はてな1.43:1用 */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px dashed rgba(var(--color-info-rgb), 0.8);
}

.trim-warning {
    font-size: 0.75rem;
    color: var(--color-warning);
    margin-top: var(--spacing-sm);
}

/* ============================================================
   14.5. 画像エラー表示
   ============================================================ */
.card-image.image-error {
    background: rgba(var(--color-text-muted-rgb), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}

.card-image.image-error::after {
    content: '🖼️ 画像を読み込めません';
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-align: center;
}

.preview-container.theme-light-preview .card-image.image-error {
    background: rgba(0, 0, 0, 0.05);
}

.embed-image.image-error,
.unfurl-image.image-error {
    background: rgba(var(--color-text-muted-rgb), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.embed-image.image-error::after,
.unfurl-image.image-error::after {
    content: '🖼️';
    font-size: 1.5rem;
    opacity: 0.5;
}

/* ============================================================
   15. OGPテーブル
   ============================================================ */
.diagnosis-summary {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.diagnosis-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.diagnosis-item.success {
    color: var(--color-success);
}

.diagnosis-item.warning {
    color: var(--color-warning);
}

.diagnosis-item.error {
    color: var(--color-error);
}

.ogp-table-wrap {
    overflow-x: auto;
}

.ogp-table {
    width: 100%;
    border-collapse: collapse;
}

.ogp-table th,
.ogp-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

.ogp-table th {
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.875rem;
}

.ogp-table td {
    font-size: 0.875rem;
    word-break: break-all;
}

.ogp-table .tag-name {
    color: var(--color-accent-secondary);
    font-family: 'Consolas', 'Monaco', monospace;
}

.ogp-table .status-ok {
    color: var(--color-success);
}

.ogp-table .status-missing {
    color: var(--color-error);
}

.ogp-table .status-warning {
    color: var(--color-warning);
}

/* ============================================================
   16. コード出力
   ============================================================ */
.code-output {
    background: rgba(var(--color-black-rgb), 0.4);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    overflow-x: auto;
}

.code-output pre {
    margin: 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    color: var(--color-text);
    white-space: pre-wrap;
    word-break: break-all;
}

.code-output code {
    color: var(--color-accent-secondary);
}

/* ============================================================
   17. リファレンスカード
   ============================================================ */
.reference-card {
    background: linear-gradient(135deg,
            rgba(var(--color-accent-tertiary-rgb), 0.2) 0%,
            rgba(var(--color-black-rgb), 0.3) 100%);
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.ref-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: rgba(var(--color-black-rgb), 0.3);
    border-radius: var(--radius-md);
}

.ref-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.ref-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent-secondary);
}

.ref-value small {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* ============================================================
   18. Light Mode 対応（必須）
   ============================================================ */
body.theme-light .mode-tab {
    background: var(--color-white);
}

body.theme-light .mode-tab.active {
    background: rgba(var(--color-accent-primary-rgb), 0.1);
}

body.theme-light .sns-tab {
    background: var(--color-white);
}

body.theme-light .sns-tab.active {
    background: rgba(var(--color-accent-secondary-rgb), 0.1);
}

body.theme-light .preview-container {
    background: rgba(var(--color-black-rgb), 0.05);
}

body.theme-light .code-output {
    background: var(--color-white);
}

body.theme-light .reference-card {
    background: linear-gradient(135deg,
            rgba(var(--color-accent-tertiary-rgb), 0.1) 0%,
            rgba(var(--color-white-rgb), 0.9) 100%);
}

body.theme-light .ref-item {
    background: rgba(var(--color-black-rgb), 0.05);
}

/* iframe対応（モーダル内表示時） */
body.theme-light.in-iframe {
    background-color: var(--color-white) !important;
}

/* ============================================================
   19. レスポンシブ対応（必須）
   ============================================================ */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .sns-tabs {
        gap: var(--spacing-xs);
    }

    .sns-tab {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    .sns-tab span:not(.icon) {
        display: none;
    }

    .hatena-card {
        flex-direction: column;
    }

    .hatena-card .card-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1.43 / 1;
    }

    .slack-unfurl {
        flex-direction: column;
    }

    .slack-unfurl .unfurl-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1.91 / 1;
    }
}

@media (max-width: 600px) {
    .mode-tabs {
        flex-direction: column;
    }

    .mode-tab {
        justify-content: center;
    }

    .input-with-button {
        flex-direction: column;
    }

    .options-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .preview-container {
        padding: var(--spacing-md);
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .action-row {
        flex-direction: column;
    }

    .action-row button {
        width: 100%;
    }
}