/* =====================================================
   features-page.css
   機能一覧ページ専用スタイル (features_ja.html / features_en.html)
   ===================================================== */

/* スムーズスクロール設定 */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px; /* 固定ナビゲーション分のオフセット */
}

/* ページ全体の背景 */
body {
    padding-top: 0;
    background-color: var(--color-bg-base);
}

/* コンテナを1200pxに拡張 */
main .container {
    max-width: 1200px;
}

/* 目次 */
.toc {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 30px;
    margin: 40px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.toc h2 {
    color: var(--color-btn-primary);
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
}

.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 25px;
}

.toc-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    background: var(--color-bg-base);
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-btn-primary);
    font-weight: 500;
    transition: all 0.3s;
    border: 1px solid var(--color-border);
}

.toc-item:hover {
    background: var(--color-info);
    transform: translateX(5px);
    border-color: var(--color-btn-primary);
}

.toc-item i {
    margin-right: 10px;
    font-size: 1.1rem;
}

/* カテゴリセクション */
.category-section {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.category-title {
    font-size: 2rem;
    color: var(--color-btn-primary);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--color-btn-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-title i {
    font-size: 1.8rem;
}

/* 機能カードグリッド */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

/* 機能カード */
.feature-card {
    background: var(--color-bg-base);
    border: 2px solid var(--color-border);
    border-radius: 10px;
    padding: 25px;
    transition: all 0.3s;
    position: relative;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(91, 124, 153, 0.15);
    border-color: var(--color-btn-primary);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.feature-icon {
    width: 45px;
    height: 45px;
    background: var(--color-btn-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.feature-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

/* 機能バッジ */
.feature-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 6px;
    margin-bottom: 8px;
}

.badge-all {
    background: var(--color-success);
    color: var(--color-success-dark);
}

.badge-paid {
    background: var(--color-error);
    color: var(--color-error-dark);
}

.badge-new {
    background: #feebc8;
    color: #7c2d12;
}

/* 機能詳細 */
.feature-details {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--color-border);
}

.feature-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-details li {
    padding: 6px 0 6px 20px;
    position: relative;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.feature-details li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success-dark);
    font-weight: bold;
}

/* 機能リンク */
.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--color-btn-primary);
    text-decoration: none;
    font-weight: 500;
    margin-top: 12px;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.feature-link:hover {
    color: var(--color-secondary);
    gap: 8px;
}

/* プラン説明ノート */
.plan-note {
    background: var(--color-info);
    border-left: 4px solid var(--color-btn-primary);
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
}

.plan-note h3 {
    color: var(--color-info-dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan-note p {
    color: var(--color-text-primary);
    line-height: 1.7;
    margin: 8px 0;
}

/* CTAセクション */
.cta-section {
    background: var(--color-btn-primary);
    color: white;
    text-align: center;
    padding: 60px 40px;
    border-radius: 12px;
    margin: 60px 0 40px;
}

.cta-section h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--color-bg-secondary);
    color: var(--color-btn-primary);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* 言語セレクタ */
.lang-switch {
    position: absolute;
    top: 20px;
    right: 20px;
}

.lang-switch select {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.lang-switch select:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lang-switch select option {
    background: var(--color-text-primary);
    color: white;
}

/* パンくずリスト */
.breadcrumb {
    background: var(--color-bg-secondary);
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border);
}

.breadcrumb-container {
    max-width: 900px;
    margin: 0 auto;
}

.breadcrumb a {
    color: var(--color-btn-primary, var(--color-btn-primary));
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--color-text-secondary);
    margin: 0 8px;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .page-header p {
        font-size: 1rem;
    }

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

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

    .category-section {
        padding: 25px 20px;
    }

    .category-title {
        font-size: 1.6rem;
    }
}