/* =============================
   Salesforce Knowledge — Premium Design
   ============================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
    --sfks-navy:   #1B2B4B;
    --sfks-blue:   #00A1E0;
    --sfks-light:  #EBF5FB;
    --sfks-gray:   #6B7280;
    --sfks-border: #E5E7EB;
    --sfks-bg:     #F9FAFB;
    --sfks-white:  #FFFFFF;
    --sfks-text:   #111827;
}

/* ============ ラッパー ============ */
.sfks-wrap {
    width: 100%;
    padding: 0 0 80px;
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
    color: var(--sfks-text);
    line-height: 1.8;
}

/* ============ ヒーローヘッダー（一覧ページ） ============ */
.sfks-hero {
    background: var(--sfks-navy);
    padding: 56px 40px 48px;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
}
.sfks-hero::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: rgba(0, 161, 224, .12);
    pointer-events: none;
}
.sfks-hero::after {
    content: '';
    position: absolute;
    bottom: -60px; left: 10%;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: rgba(0, 161, 224, .07);
    pointer-events: none;
}
.sfks-hero-label {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--sfks-blue);
    margin-bottom: 12px;
}
.sfks-archive-title {
    font-size: 32px !important;
    font-weight: 700 !important;
    color: #fff !important;
    margin: 0 0 12px !important;
    line-height: 1.3 !important;
    border: none !important;
    padding: 0 !important;
    letter-spacing: -.01em;
}
.sfks-hero-desc {
    font-size: 14px;
    color: rgba(255,255,255,.65);
    margin: 0;
    font-weight: 300;
}

/* ============ カテゴリーフィルター ============ */
.sfks-filter-wrap {
    padding: 0 40px;
    margin-bottom: 36px;
}
.sfks-filter-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.sfks-filter-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border: 1.5px solid var(--sfks-border);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--sfks-gray);
    text-decoration: none;
    transition: all .2s ease;
    background: var(--sfks-white);
    letter-spacing: .02em;
}
.sfks-filter-tag:hover {
    border-color: var(--sfks-blue);
    color: var(--sfks-blue);
    background: var(--sfks-light);
}
.sfks-filter-tag.is-active {
    background: var(--sfks-navy);
    border-color: var(--sfks-navy);
    color: #fff;
}

/* ============ 記事カードグリッド ============ */
.sfks-article-wrap {
    padding: 0 40px;
}
.sfks-article-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.sfks-article-card {
    background: var(--sfks-white);
    border: 1px solid var(--sfks-border);
    border-radius: 12px;
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: box-shadow .25s ease, transform .25s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}
.sfks-article-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--sfks-blue);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform .25s ease;
    border-radius: 12px 0 0 12px;
}
.sfks-article-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,.10);
    transform: translateY(-4px);
}
.sfks-article-card:hover::before {
    transform: scaleY(1);
}
.sfks-card-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.sfks-cat-tag {
    display: inline-block;
    background: var(--sfks-light);
    color: var(--sfks-blue);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 4px;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
}
.sfks-cat-tag:hover { background: #d0ebf8; }
.sfks-card-title {
    font-size: 16px !important;
    font-weight: 700 !important;
    margin: 0 !important;
    line-height: 1.5 !important;
    color: var(--sfks-text) !important;
}
.sfks-card-title a {
    color: var(--sfks-text);
    text-decoration: none;
}
.sfks-card-title a:hover { color: var(--sfks-blue); }
.sfks-card-summary {
    font-size: 13px;
    color: var(--sfks-gray);
    margin: 0;
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sfks-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 4px;
    padding-top: 12px;
    border-top: 1px solid var(--sfks-border);
}
.sfks-card-meta {
    font-size: 12px;
    color: #9CA3AF;
    font-family: 'Inter', sans-serif;
}
.sfks-card-arrow {
    font-size: 18px;
    color: var(--sfks-blue);
    line-height: 1;
}
.sfks-no-posts {
    color: var(--sfks-gray);
    padding: 40px;
    text-align: center;
    font-size: 14px;
}

/* ページネーション */
.sfks-article-wrap .navigation {
    margin-top: 48px;
    display: flex;
    justify-content: center;
    gap: 8px;
}

/* ============ 記事詳細ページ ============ */

/* ヒーロー（詳細） */
.sfks-single-hero {
    background: var(--sfks-navy);
    padding: 48px 40px 40px;
    margin-bottom: 0;
}
.sfks-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}
.sfks-title {
    font-size: 28px !important;
    font-weight: 700 !important;
    color: #fff !important;
    line-height: 1.4 !important;
    margin: 0 0 16px !important;
    border: none !important;
    padding: 0 !important;
}
.sfks-single-meta {
    font-size: 13px;
    color: rgba(255,255,255,.55);
    font-family: 'Inter', sans-serif;
    display: flex;
    align-items: center;
    gap: 16px;
}

/* コンテンツエリア */
.sfks-content-wrap {
    padding: 40px 40px 0;
}

/* 概要 */
.sfks-summary {
    font-size: 15px;
    color: #374151;
    background: var(--sfks-light);
    border-left: 4px solid var(--sfks-blue);
    padding: 16px 20px;
    margin: 0 0 32px;
    border-radius: 0 8px 8px 0;
    line-height: 1.8;
}

/* 目次 */
.sfks-toc {
    background: var(--sfks-bg);
    border: 1px solid var(--sfks-border);
    border-radius: 12px;
    padding: 24px 28px;
    margin-bottom: 40px;
}
.sfks-toc-title {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--sfks-gray);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--sfks-border);
}
.sfks-toc-list {
    margin: 0;
    padding-left: 20px;
    list-style: decimal;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sfks-toc-item {
    font-size: 14px;
    line-height: 1.5;
}
.sfks-toc-item a {
    color: var(--sfks-navy);
    text-decoration: none;
    transition: color .15s;
}
.sfks-toc-item a:hover { color: var(--sfks-blue); }
.sfks-toc-h3 {
    padding-left: 16px;
    list-style-type: disc;
}

/* 本文 */
.sfks-content {
    font-size: 15px;
    line-height: 1.9;
    color: #1F2937;
}
.sfks-content h2 {
    font-size: 20px !important;
    font-weight: 700 !important;
    color: var(--sfks-navy) !important;
    border-left: 4px solid var(--sfks-blue) !important;
    padding: 8px 16px !important;
    margin: 48px 0 20px !important;
    background: var(--sfks-bg) !important;
    border-radius: 0 6px 6px 0 !important;
}
.sfks-content h3 {
    font-size: 17px !important;
    font-weight: 700 !important;
    color: var(--sfks-text) !important;
    margin: 36px 0 14px !important;
    padding-bottom: 8px !important;
    border-bottom: 2px solid var(--sfks-border) !important;
}
.sfks-content p { margin: 0 0 20px; }
.sfks-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
    border: 1px solid var(--sfks-border);
}
.sfks-content ul, .sfks-content ol {
    padding-left: 24px;
    margin: 0 0 20px;
}
.sfks-content li { margin: 8px 0; }
.sfks-content a { color: var(--sfks-blue); text-decoration: underline; }
.sfks-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--sfks-border);
}
.sfks-content th, .sfks-content td {
    border: 1px solid var(--sfks-border);
    padding: 12px 16px;
    text-align: left;
}
.sfks-content th {
    background: var(--sfks-navy);
    color: #fff;
    font-weight: 600;
}
.sfks-content tr:nth-child(even) td { background: var(--sfks-bg); }
.sfks-content pre, .sfks-content code {
    background: #1e2433;
    color: #e2e8f0;
    font-family: 'Courier New', monospace;
}
.sfks-content pre {
    padding: 20px 24px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 13px;
    margin: 20px 0;
    line-height: 1.7;
}
.sfks-content code {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .9em;
}

/* ============ レスポンシブ ============ */
@media (max-width: 768px) {
    .sfks-hero, .sfks-single-hero { padding: 36px 20px 30px; }
    .sfks-archive-title { font-size: 24px !important; }
    .sfks-filter-wrap, .sfks-article-wrap, .sfks-content-wrap { padding-left: 20px; padding-right: 20px; }
    .sfks-article-list { grid-template-columns: 1fr; }
    .sfks-title { font-size: 22px !important; }
}