/* 汎用アコーディオンCSS */

/* アコーディオンコンテナ */
.accordion-container {
    margin-top: 30px;
}

/* アコーディオンアイテム */
.accordion-item {
    margin-bottom: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

/* アコーディオンヘッダー */
.accordion-header {
    background-color: var(--color-spare);
    color: white;
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.accordion-header:hover {
    background-color: #05285c;
}

.accordion-header-text {
    font-weight: bold;
    font-size: 1.2rem;
}

.accordion-header-icon {
    transition: transform 0.3s;
    font-size: 1rem;
}

.accordion-header-icon.active {
    transform: rotate(180deg);
}

/* アコーディオンコンテンツ */
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    background-color: white;
}

.accordion-content.active {
    max-height: 5000px;
}

/* コンテンツ内のパディング */
.accordion-content-inner {
    padding: 20px 30px;
}

.accordion-content-inner p {
    margin: 0 0 20px 0;
}

.accordion-content-inner h4 {
    color: var(--color-spare);
    font-size: 1.3rem;
    font-weight: bold;
    margin: 30px 0 15px 0;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 5px;
}

.accordion-content-inner h4:first-child {
    margin-top: 0;
}

/* 動画グリッド（映像制作用） */
.accordion-content .video-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 30px 30px;
}

/* 閉じるボタンコンテナ（映像制作用） */
.accordion-close-container {
    text-align: center;
    padding: 15px 20px;
    border-top: 1px solid #f0f0f0;
}

.accordion-close-container .accordion-close-btn {
    background-color: #f8f9fa;
    color: #666;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.85rem;
    box-shadow: none;
     width: 100%; 
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.accordion-close-container .accordion-close-btn:hover {
    background-color: #e9ecef;
    color: #495057;
    transform: none;
    box-shadow: none;
}

.accordion-close-container .accordion-close-btn i {
    font-size: 0.8rem;
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
    .accordion-header {
        padding: 12px 15px;
    }
    
    .accordion-header-text {
        font-size: 1.1rem;
    }
    
    .accordion-content-inner {
        padding: 15px 20px;
    }
    
    .accordion-content-inner h4 {
        font-size: 1.1rem;
        margin: 25px 0 10px 0;
    }
    
    .accordion-content-inner p {
        font-size: 0.9rem;
    }
    
    .accordion-content .video-grid {
        padding: 0 15px 15px;
    }
    
    .accordion-close-container {
        padding: 12px 15px;
    }
    
    .accordion-close-container .accordion-close-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}