/* ============================================================
   用語辞典 - 専用CSS
   既存CSS変数（style.css :root）を活用
   ============================================================ */

/* --- 五十音ナビ --- */
.glossary-gojuon-nav {
    display: flex;
    gap: var(--spacing-xs);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-sm) 0;
    margin: var(--spacing-lg) 0;
    position: sticky;
    top: var(--header-height);
    background: var(--color-white);
    z-index: 10;
    border-bottom: 1px solid var(--color-border);
}

.glossary-gojuon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
    flex-shrink: 0;
}

.glossary-gojuon-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.glossary-gojuon-link.is-disabled {
    opacity: 0.3;
    pointer-events: none;
}

/* --- グループ --- */
.glossary-group {
    margin-bottom: var(--spacing-2xl);
    scroll-margin-top: calc(var(--header-height) + 60px);
}

.glossary-group-heading {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary);
}

/* --- カードグリッド --- */
.glossary-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.glossary-card {
    display: block;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.glossary-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.glossary-card-term {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.glossary-card-def {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* --- 個別ページ --- */
.glossary-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.glossary-detail h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.glossary-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.glossary-detail-en {
    font-size: 0.9rem;
    color: var(--color-text-light);
    background: var(--color-bg);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.glossary-detail-reading {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* --- アンサーパッセージ（定義ボックス） --- */
.glossary-answer-box {
    background: #eff6ff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    font-size: 1.05rem;
    line-height: 1.8;
}

.glossary-answer-box strong {
    color: var(--color-primary);
}

/* --- 本文 --- */
.glossary-detail-body {
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-xl);
}

.glossary-detail-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: var(--color-primary-light);
    text-underline-offset: 2px;
}

.glossary-detail-body a:hover {
    color: var(--color-primary-dark);
}

/* --- セクション見出し --- */
.glossary-detail section {
    margin-bottom: var(--spacing-2xl);
    scroll-margin-top: calc(var(--header-height) + 20px);
}

.glossary-detail section h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-primary);
}

/* --- body内h3見出し --- */
.glossary-body-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

/* --- 目次 --- */
.glossary-toc {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.glossary-toc-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

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

.glossary-toc-list li {
    counter-increment: toc;
    margin-bottom: var(--spacing-xs);
}

.glossary-toc-list li::before {
    content: counter(toc) ". ";
    color: var(--color-primary);
    font-weight: 700;
}

.glossary-toc-list a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.95rem;
}

.glossary-toc-list a:hover {
    text-decoration: underline;
}

/* --- 関連用語リスト（定義付き） --- */
.glossary-related-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.glossary-related-item {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.glossary-related-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--color-primary-light);
}

.glossary-related-item-term {
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 1rem;
}

.glossary-related-item-term:hover {
    text-decoration: underline;
}

.glossary-related-item-def {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin-top: var(--spacing-xs);
}

/* --- FAQ（アコーディオン） --- */
.glossary-faq {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.glossary-faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.glossary-faq-q {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.glossary-faq-q::before {
    content: "Q";
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.glossary-faq-q::-webkit-details-marker {
    display: none;
}

.glossary-faq-item[open] .glossary-faq-q {
    border-bottom: 1px solid var(--color-border);
}

.glossary-faq-a {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text);
}

.glossary-faq-a .btn-sm {
    margin-top: var(--spacing-sm);
}

/* --- SP レスポンシブ --- */
@media (max-width: 768px) {
    .glossary-card-grid {
        grid-template-columns: 1fr;
    }

    .glossary-detail h1 {
        font-size: 1.35rem;
    }

    .glossary-detail section h2 {
        font-size: 1.15rem;
    }

    .glossary-answer-box {
        font-size: 0.95rem;
        padding: var(--spacing-md);
    }

    .glossary-toc {
        padding: var(--spacing-md);
    }

    .glossary-faq-q {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }

    .glossary-faq-a {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .glossary-related-item {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .glossary-gojuon-nav {
        gap: 2px;
    }

    .glossary-gojuon-link {
        min-width: 34px;
        height: 34px;
        font-size: 0.85rem;
    }
}