/* ============================================================
   資料ダウンロード - Bootstrap 5 スタイルシート
   TCD GENESIS (tcd103) 対応
   固定ヘッダー分の上部余白を確保
   配置: テーマ/css/style-documents.css
   ============================================================ */

/* -----------------------------------------------------------
   Bootstrap リセット: テーマ側のリンクスタイルを壊さない
   Bootstrap 5 が全 a タグに underline を付けるため、
   .doc- 系クラス以外では打ち消す
   ----------------------------------------------------------- */
a {
    text-decoration: none;
}

/* doc- 系の中で明示的に underline が必要な箇所のみ付与 */
.doc-link {
    text-decoration: underline;
}

/* -----------------------------------------------------------
   CSS変数
   ----------------------------------------------------------- */
:root {
    --doc-header-height: 80px;
    --doc-primary: #1a1a2e;
    --doc-accent: #e94560;
    --doc-accent-hover: #d63851;
    --doc-text: #2c2c2c;
    --doc-text-light: #6c757d;
    --doc-bg: #ffffff;
    --doc-bg-light: #f7f8fa;
    --doc-border: #e8e8e8;
}

/* -----------------------------------------------------------
   全体ラッパー - 固定ヘッダー分の余白
   ----------------------------------------------------------- */
.doc-page-wrapper {
    padding-top: var(--doc-header-height);
}

/* -----------------------------------------------------------
   テーマヘッダーとの余白調整
   ----------------------------------------------------------- */
.doc-page-wrapper > .service_category_content {
    margin-bottom: 0;
}

/* -----------------------------------------------------------
   カテゴリーフィルター
   ----------------------------------------------------------- */
.doc-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 24px 0;
    border-bottom: 1px solid var(--doc-border);
    margin-bottom: 8px;
}

.doc-filter-tag {
    display: inline-block;
    padding: 6px 20px;
    border: 1px solid var(--doc-border);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--doc-text-light);
    text-decoration: none;
    transition: all 0.25s ease;
}

.doc-filter-tag:hover {
    color: var(--doc-accent);
    border-color: var(--doc-accent);
}

.doc-filter-tag.active {
    background: var(--doc-primary);
    border-color: var(--doc-primary);
    color: #fff;
}

/* -----------------------------------------------------------
   資料一覧: カードグリッド
   参考: minority.works/white-paper
   画像 + タイトル + DLボタン のシンプル構成
   ----------------------------------------------------------- */
.doc-archive-container {
    padding-top: 32px;
    padding-bottom: 60px;
}

.doc-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--doc-bg);
    border: 1px solid var(--doc-border);
    border-radius: 4px;
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.doc-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

/* カード画像 */
.doc-card-img-link {
    display: block;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: var(--doc-bg-light);
}

.doc-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.doc-card:hover .doc-card-img {
    transform: scale(1.03);
}

.doc-card-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--doc-text-light);
    font-size: 14px;
}

.doc-card-img-placeholder i {
    font-size: 48px;
    opacity: 0.3;
}

/* カードボディ */
.doc-card-body {
    padding: 20px 20px 12px;
    flex: 1;
}

.doc-card-title-link {
    text-decoration: none;
    color: inherit;
}

.doc-card-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
    color: var(--doc-text);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-card-title-link:hover .doc-card-title {
    color: var(--doc-accent);
}

/* カードフッター: ダウンロードボタン */
.doc-card-footer {
    padding: 0 20px 20px;
}

.doc-card-dl-btn {
    display: block;
    text-align: center;
    padding: 10px 16px;
    background: var(--doc-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.25s ease;
    letter-spacing: 0.03em;
}

.doc-card-dl-btn:hover {
    background: var(--doc-accent);
    color: #fff;
}

.doc-card-dl-btn i {
    margin-right: 4px;
}

/* -----------------------------------------------------------
   ページネーション
   ----------------------------------------------------------- */
.doc-pagination {
    margin-top: 48px;
    margin-bottom: 20px;
}

.doc-pagination .page-item.active .page-link {
    background-color: var(--doc-primary);
    border-color: var(--doc-primary);
}

.doc-pagination .page-link {
    color: var(--doc-text);
    border-radius: 4px;
    margin: 0 2px;
    border-color: var(--doc-border);
}

.doc-pagination .page-link:hover {
    background-color: var(--doc-bg-light);
    border-color: var(--doc-primary);
    color: var(--doc-primary);
}

/* -----------------------------------------------------------
   個別ページ: 2カラムレイアウト
   参考: minority.works/download-15
   ----------------------------------------------------------- */
.doc-single-main {
    padding: 48px 0 40px;
}

/* 左カラム: 資料画像 */
.doc-single-visual {
    margin-bottom: 32px;
    border: 1px solid var(--doc-border);
    border-radius: 4px;
    overflow: hidden;
    background: var(--doc-bg-light);
}

.doc-single-thumb {
    width: 100%;
    height: auto;
    display: block;
}

.doc-single-thumb-placeholder {
    aspect-ratio: 3 / 2;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--doc-text-light);
    font-size: 80px;
    opacity: 0.2;
}

/* 左カラム: 説明文 */
.doc-single-description {
    margin-bottom: 20px;
}

.doc-single-title {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.6;
    color: var(--doc-text);
    margin: 0 0 20px;
}

.doc-single-text {
    font-size: 15px;
    line-height: 2;
    color: var(--doc-text);
}

.doc-single-text p {
    margin-bottom: 16px;
}

/* 右カラム: フォームエリア */
.doc-single-form-area {
    background: var(--doc-bg-light);
    border: 1px solid var(--doc-border);
    border-radius: 4px;
    padding: 36px 32px;
    position: sticky;
    top: calc(var(--doc-header-height) + 24px);
}

/* フォームヘッダー */
.doc-form-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--doc-border);
}

.doc-form-heading {
    font-size: 20px;
    font-weight: 700;
    color: var(--doc-text);
    margin: 0 0 10px;
}

.doc-form-lead {
    font-size: 14px;
    color: var(--doc-text-light);
    margin: 0;
    line-height: 1.8;
}

/* 必須バッジ */
.doc-required {
    display: inline-block;
    background: var(--doc-accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 8px;
    border-radius: 3px;
    margin-left: 6px;
    vertical-align: middle;
    letter-spacing: 0.05em;
}

/* フォーム各項目 */
.doc-single-form-area .form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--doc-text);
    margin-bottom: 4px;
}

.doc-single-form-area .form-control {
    border-color: var(--doc-border);
    border-radius: 4px;
    font-size: 15px;
    padding: 10px 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.doc-single-form-area .form-control:focus {
    border-color: var(--doc-accent);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.12);
}

.doc-single-form-area .form-control-lg {
    font-size: 15px;
}

.doc-single-form-area .form-check-input:checked {
    background-color: var(--doc-accent);
    border-color: var(--doc-accent);
}

.doc-link {
    color: var(--doc-accent);
    text-decoration: underline;
}

.doc-link:hover {
    color: var(--doc-accent-hover);
}

/* 送信ボタン */
.doc-submit-btn {
    background: var(--doc-accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 700;
    padding: 14px 24px;
    letter-spacing: 0.03em;
    transition: background 0.25s ease, transform 0.1s ease;
}

.doc-submit-btn:hover {
    background: var(--doc-accent-hover);
    color: #fff;
}

.doc-submit-btn:active {
    transform: scale(0.98);
}

.doc-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.doc-submit-btn i {
    margin-right: 6px;
}

/* フォームメッセージ */
#form-message.error {
    background: #fff5f5;
    color: #c53030;
    border: 1px solid #feb2b2;
    border-radius: 4px;
    padding: 10px 14px;
    font-size: 14px;
}

#form-message.success {
    background: #f0fff4;
    color: #276749;
    border: 1px solid #9ae6b4;
    border-radius: 4px;
    padding: 10px 14px;
    font-size: 14px;
}

/* ダウンロード完了 */
.doc-complete-wrap {
    text-align: center;
    padding: 20px 0;
}

.doc-complete-icon {
    font-size: 56px;
    color: #38a169;
    margin-bottom: 8px;
}

.doc-complete-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--doc-text);
    margin: 0 0 12px;
}

.doc-complete-text {
    font-size: 14px;
    color: var(--doc-text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.doc-download-btn {
    background: var(--doc-accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 700;
    padding: 14px 40px;
    text-decoration: none;
    transition: background 0.25s ease;
}

.doc-download-btn:hover {
    background: var(--doc-accent-hover);
    color: #fff;
}

.doc-download-btn i {
    margin-right: 6px;
}

/* 直接DL時のファイル情報 */
.doc-file-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: 14px;
}

.doc-badge-type {
    background: var(--doc-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 4px;
}

/* -----------------------------------------------------------
   その他の資料（関連資料）
   ----------------------------------------------------------- */
.doc-related-section {
    background: var(--doc-bg-light);
    padding: 48px 0 60px;
    border-top: 1px solid var(--doc-border);
}

.doc-related-heading {
    font-size: 22px;
    font-weight: 700;
    color: var(--doc-text);
    margin: 0 0 28px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--doc-primary);
    display: inline-block;
}

/* -----------------------------------------------------------
   レスポンシブ
   ----------------------------------------------------------- */
@media (max-width: 991px) {
    .doc-page-wrapper {
        --doc-header-height: 60px;
    }

    .doc-single-form-area {
        position: static;
        margin-top: 16px;
    }
}

@media (max-width: 767px) {
    .doc-archive-container {
        padding-top: 20px;
        padding-bottom: 40px;
    }

    .doc-card-title {
        font-size: 15px;
    }

    .doc-single-main {
        padding: 32px 0 28px;
    }

    .doc-single-title {
        font-size: 20px;
    }

    .doc-single-form-area {
        padding: 24px 20px;
    }

    .doc-related-section {
        padding: 36px 0 48px;
    }

    .doc-filter-bar {
        gap: 6px;
    }

    .doc-filter-tag {
        padding: 5px 14px;
        font-size: 13px;
    }
}