:root {
    --sidebar-width: 320px;
    /* Dark Mode Colors - matching main site */
    --bg-primary: #0a0e27;
    --bg-secondary: #151932;
    --bg-tertiary: #1e2239;
    --bg-card: #1a1f3a;
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-gold: #fbbf24;
    --text-primary: #e5e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #2d3350;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    display: flex;
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* サイドバー：自動生成メニュー */
nav {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    height: 100vh;
    border-right: 2px solid var(--border-color);
    position: fixed;
    overflow-y: auto;
    padding: 24px;
    box-sizing: border-box;
    box-shadow: 4px 0 12px rgba(0, 0, 0, 0.3);
}

nav::-webkit-scrollbar {
    width: 8px;
}

nav::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

nav::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

nav h2 {
    font-size: 1.5rem;
    color: var(--accent-primary);
    background: var(--gradient-2);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-bottom: 2px solid var(--accent-primary);
    padding-bottom: 12px;
    text-align: center;
    font-weight: 800;
    margin-bottom: 8px;
}

nav .current-law {
    text-align: center;
    color: var(--accent-gold);
    font-size: 0.9rem;
    margin-bottom: 16px;
    padding: 8px;
    background: var(--bg-card);
    border-radius: 8px;
    font-weight: 600;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.law-group {
    margin-bottom: 28px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.repo-title {
    font-weight: 700;
    display: block;
    padding: 12px 16px;
    color: white;
    background: var(--gradient-2);
    text-decoration: none;
    border-radius: 10px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
    font-size: 1rem;
}

.repo-title:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
}

.file-link {
    display: block;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    border-left: 3px solid var(--border-color);
    margin-left: 12px;
    margin-bottom: 4px;
    transition: all 0.2s ease;
    border-radius: 0 6px 6px 0;
    background: var(--bg-tertiary);
}

.file-link:hover {
    border-left-color: var(--accent-primary);
    background: var(--bg-card);
    color: var(--accent-primary);
    padding-left: 20px;
}

/* 選択中のリンクのスタイル */
.repo-title.active,
.file-link.active {
    background: var(--bg-card);
    border-left-color: var(--accent-gold);
    color: var(--accent-gold);
    font-weight: 800;
}

.file-link.active {
    padding-left: 20px;
}

/* メイン：法令表示エリア */
main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 60px;
    min-height: 100vh;
    box-sizing: border-box;
    background: var(--bg-primary);
}

.markdown-body {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 48px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* 法令らしい装飾（明朝体と二重線） - ダークモード対応 */
.markdown-body h1 {
    border-bottom: 3px double var(--accent-primary);
    padding-bottom: 20px;
    text-align: center;
    color: var(--accent-primary);
    background: var(--gradient-2);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.markdown-body h2 {
    border-bottom: 2px solid var(--border-color);
    margin-top: 48px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.8rem;
}

.markdown-body h3 {
    color: var(--text-primary);
    margin-top: 32px;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 1.4rem;
}

.markdown-body p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.markdown-body code {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    padding: 4px 10px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    border: 1px solid var(--border-color);
}

.markdown-body pre {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: 10px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

.markdown-body pre code {
    background: transparent;
    border: none;
    padding: 0;
}

.markdown-body ul,
.markdown-body ol {
    color: var(--text-secondary);
    margin-left: 24px;
    margin-bottom: 16px;
}

.markdown-body li {
    margin-bottom: 8px;
}

.markdown-body a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.markdown-body a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 32px 0;
}

.markdown-body blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: 20px;
    margin: 20px 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid var(--border-color);
    padding: 12px;
    text-align: left;
}

.markdown-body th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 700;
}

.markdown-body td {
    color: var(--text-secondary);
}

/* 目次スタイル */
.table-of-contents {
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
}

.table-of-contents h3 {
    margin-top: 0 !important;
    margin-bottom: 16px !important;
    color: var(--accent-primary) !important;
    font-size: 1.3rem !important;
}

.table-of-contents ul {
    margin-left: 0 !important;
    list-style: none;
}

.table-of-contents li {
    margin-bottom: 8px;
}

.table-of-contents a {
    color: var(--text-secondary) !important;
    padding: 6px 12px;
    display: inline-block;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.table-of-contents a:hover {
    background: var(--bg-card);
    color: var(--accent-primary) !important;
    text-decoration: none !important;
    padding-left: 16px;
}

.table-of-contents .toc-h2 {
    margin-left: 0;
}

.table-of-contents .toc-h3 {
    margin-left: 20px;
    font-size: 0.9rem;
}

.table-of-contents .toc-h4 {
    margin-left: 40px;
    font-size: 0.85rem;
}

/* 見出しアンカーリンク */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    position: relative;
    scroll-margin-top: 80px;
}

.markdown-body h1:hover .heading-anchor,
.markdown-body h2:hover .heading-anchor,
.markdown-body h3:hover .heading-anchor,
.markdown-body h4:hover .heading-anchor,
.markdown-body h5:hover .heading-anchor,
.markdown-body h6:hover .heading-anchor {
    opacity: 1;
}

.heading-anchor {
    opacity: 0;
    transition: opacity 0.2s ease;
    color: var(--accent-primary);
    text-decoration: none;
    margin-left: 8px;
    font-size: 0.8em;
}

.heading-anchor:hover {
    color: var(--accent-secondary);
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    nav {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }

    main {
        margin-left: 0;
        padding: 24px;
    }

    .markdown-body {
        padding: 24px;
    }

    .markdown-body h1 {
        font-size: 2rem;
    }

    .markdown-body h2 {
        font-size: 1.5rem;
    }
}