/**
 * 日常刺激 - インターネットアート作品ライブラリ
 * 共通スタイルシート
 */
html { font-size: 3.2vw;}
body { transition: none;}

/* メインコンテンツ */
main {
    max-width: 1000px;
    margin: 0rem auto;
    padding: 0 1rem;
}

article {
    background-color: #fff;
    border-radius: 8px;
    padding: 2rem 1rem; line-height: 1.8;
}

article header {
    box-shadow: none;
    background: none;
    padding: 0;
    margin-bottom: 2rem;
}

article h1 {
    font-size: 2.2rem;
    text-align: left;
    margin-bottom: 0.5rem;
}

article .meta {
    color: #777;
    font-size: 0.9rem;
}

/* セクション共通 */
section {
    margin-bottom: 3rem;
}

#push section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    padding: 0 0 0.5rem 0;
    border-bottom: 1px solid #eee; text-align: left;
}
#push article section:nth-child(1) h2 {
    font-size: 2.5vw; }

#push section h3 {
    font-size: 1.4rem;
    margin: 1.5rem 0 1rem;
    color: #333;
}

/* 特徴リスト */
.characteristics ol {
    padding-left: 2rem;
}

.characteristics li {
    margin-bottom: 1.5rem;
}

.characteristics h3 {
    margin-top: 0;
}

/* 歴史タイムライン */
.timeline .period {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    border-left: 3px solid #ddd;
    position: relative;
}

.timeline .period::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #E72D29;
    left: -7.5px;
    top: 0.5rem;
}

/* ジャンルリスト */
.genre-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.genre {
    background-color: #f8f9fa;
    border-radius: 6px;
    padding: 1.5rem;
    border: 1px solid #eee;
}

#push .genre h3 {
    margin-top: 0;
    margin-bottom: 0.8rem;
}

/* FAQ */
.faq div[itemtype="https://schema.org/Question"] {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 1.5rem;
}

.faq h3 {
    margin-top: 0;
    margin-bottom: 0.8rem;
    color: #E72D29;
}

/* CTA */
.cta {
    background-color: #f5f5f5;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.cta h2 {
    border-bottom: none;
}

.btn-primary {
    display: inline-block;
    background-color: #E72D29;
    color: #fff;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    margin-top: 1rem;
    font-weight: 500;
    transition: background-color 0.3s;
    text-decoration: none;
}

.btn-primary:hover {
    background-color: #A40002;
    
    color: #fff;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }
    
    header nav ul li {
        margin: 0 0.5rem;
    }
    
    article header h1 {
        font-size: 1.8rem;
    }
    
    #push section h2 {
        font-size: 1.5rem;
    }
    
    #push section h3 {
        font-size: 1.2rem;
    }
    
    .genre-list {
        grid-template-columns: 1fr;
    }
}

html:before { display: none;}

article { /*padding-top: calc( 110px + 2em );margin-top: 1.333333333333333vw;*/}

.box { margin-bottom: 1.5em;}

@media screen and (min-width: 813px) {
    html { font-size: 1vw;}
    article {
        /*padding-top: calc( 60px + 2em );*/
    }
}