/* ============================================
   共通スタイル（全ページで使用）
   ============================================ */

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

body {
    font-family: 'Hiragino Sans', 'Meiryo', sans-serif;
    background: #f5f1ed;
    min-height: 100vh;
    padding: 20px;
    line-height: 1.8;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

h1 {
    text-align: center;
    color: #5a4a3a;
    margin-bottom: 10px;
    font-size: 1.8em;
    font-weight: 500;
}

.subtitle {
    text-align: center;
    color: #8b7355;
    margin-bottom: 30px;
    font-size: 0.9em;
    font-weight: 300;
}

/* 文書ページ用（privacy.html, terms.html） */
.update-date {
    text-align: center;
    color: #9a8a7a;
    margin-bottom: 40px;
    font-size: 0.85em;
    font-weight: 300;
}

h2 {
    color: #5a4a3a;
    font-size: 1.3em;
    font-weight: 500;
    margin-top: 40px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e8e3dd;
}

h3 {
    color: #8b7355;
    font-size: 1.1em;
    font-weight: 500;
    margin-top: 25px;
    margin-bottom: 10px;
}

p {
    color: #5a4a3a;
    margin-bottom: 15px;
}

ul, ol {
    margin-left: 20px;
    margin-bottom: 15px;
}

li {
    color: #5a4a3a;
    margin-bottom: 8px;
}

.highlight {
    background: #fff9f3;
    padding: 15px;
    border-left: 3px solid #c9b8a8;
    border-radius: 4px;
    margin: 20px 0;
}

.service-box, .method-box {
    background: #faf8f6;
    padding: 20px;
    border-radius: 8px;
    margin: 15px 0;
    border: 1px solid #e8e3dd;
}

strong {
    color: #5a4a3a;
}

code {
    background: #f5f1ed;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: #8b7355;
}

a {
    color: #8b7355;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #5a4a3a;
}

/* フッター（文書ページ用） */
.footer {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid #e8e3dd;
    text-align: center;
}

.back-link {
    display: inline-block;
    padding: 12px 30px;
    background: #8b7355;
    color: white;
    border-radius: 25px;
    margin-top: 20px;
    transition: all 0.2s;
}

.back-link:hover {
    background: #7a6448;
    color: white;
}

/* フッター（アプリページ用） */
.zen-footer {
    margin-top: 60px;
    padding: 40px 20px 20px;
    background: #faf8f6;
    border-top: 1px solid #e8e3dd;
}

/* Google AdSense */
.adsense-section {
    max-width: 900px;
    margin: 0 auto 40px;
}

.adsense-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e8e3dd;
    min-height: 100px;
}

.ad-section {
    max-width: 900px;
    margin: 0 auto 40px;
}

.ad-label {
    text-align: center;
    color: #9a8a7a;
    font-size: 0.85em;
    margin-bottom: 20px;
    font-weight: 300;
}

.affiliate-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.affiliate-card {
    background: white;
    border: 1px solid #e8e3dd;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
}

.affiliate-card a {
    display: block;
    text-align: center;
}

.affiliate-card:hover {
    border-color: #c9b8a8;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.affiliate-title {
    font-size: 0.75em;
    color: #9a8a7a;
    margin-bottom: 12px;
    font-weight: 300;
    text-align: center;
}

.affiliate-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.affiliate-content {
    text-align: center;
}

.affiliate-text h4 {
    color: #5a4a3a;
    font-size: 1em;
    margin-bottom: 8px;
    font-weight: 400;
}

.affiliate-desc {
    color: #8b7355;
    font-size: 0.85em;
    line-height: 1.5;
}

.footer-nav {
    text-align: center;
    font-size: 0.85em;
    margin-bottom: 15px;
}

.footer-nav a {
    color: #8b7355;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-nav a:hover {
    color: #5a4a3a;
}

.footer-nav .separator {
    color: #d4c5b3;
    margin: 0 10px;
}

.copyright {
    text-align: center;
    color: #c9b8a8;
    font-size: 0.75em;
    margin-top: 20px;
}

/* 姉妹サイトセクション */
.sibling-sites-section {
    background: white;
    border-top: 1px solid #e8e3dd;
    border-bottom: 1px solid #e8e3dd;
    padding: 40px 20px;
    margin: 0;
}

.sibling-sites-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.sibling-sites-title {
    font-size: 1.3em;
    font-weight: 400;
    color: #5a4a3a;
    margin-bottom: 8px;
}

.sibling-sites-subtitle {
    font-size: 0.85em;
    color: #9a8a7a;
    margin-bottom: 30px;
    font-weight: 300;
}

.sibling-sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.sibling-site-card {
    background: #faf8f6;
    border: 1px solid #e8e3dd;
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s ease;
    text-align: left;
}

.sibling-site-card:hover {
    border-color: #c9b8a8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.sibling-site-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.sibling-site-name {
    font-size: 1.1em;
    font-weight: 400;
    color: #5a4a3a;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sibling-site-name:after {
    content: "→";
    color: #8b7355;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.sibling-site-card:hover .sibling-site-name:after {
    transform: translateX(4px);
}

.sibling-site-description {
    font-size: 0.85em;
    color: #8b7355;
    line-height: 1.6;
}

.sibling-site-tag {
    display: inline-block;
    font-size: 0.75em;
    color: #8b7355;
    background: white;
    padding: 4px 12px;
    border-radius: 12px;
    margin-top: 10px;
    font-weight: 300;
    border: 1px solid #e8e3dd;
}

.sibling-site-card.coming-soon {
    opacity: 0.5;
    cursor: default;
}

.sibling-site-card.coming-soon:hover {
    transform: none;
    box-shadow: none;
    border-color: #e8e3dd;
}

.sibling-site-card.coming-soon .sibling-site-name {
    color: #c9b8a8;
}

.sibling-site-card.coming-soon .sibling-site-name:after {
    content: "";
}

.sibling-site-card.coming-soon .sibling-site-description {
    color: #c9b8a8;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }

    h1 {
        font-size: 1.5em;
    }

    h2 {
        font-size: 1.2em;
    }

    .affiliate-container {
        grid-template-columns: 1fr;
    }

    .sibling-sites-section {
        padding: 30px 15px;
    }

    .sibling-sites-title {
        font-size: 1.1em;
    }

    .sibling-sites-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .sibling-site-card {
        padding: 20px;
    }

    .sibling-site-name {
        font-size: 1em;
    }
}

@media (max-width: 600px) {
    .affiliate-container {
        grid-template-columns: 1fr;
    }
}



/* ============================================
   姉妹サイトセクション
   ============================================ */

.sibling-sites-section {
    background: white;
    border-top: 1px solid #e8e3dd;
    border-bottom: 1px solid #e8e3dd;
    padding: 40px 20px;
    margin: 0 auto 40px;
}

.sibling-sites-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.sibling-sites-title {
    font-size: 1.3em;
    font-weight: 400;
    color: #5a4a3a;
    margin-bottom: 8px;
}

.sibling-sites-subtitle {
    font-size: 0.85em;
    color: #9a8a7a;
    margin-bottom: 30px;
    font-weight: 300;
}

.sibling-sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.sibling-site-card {
    background: #faf8f6;
    border: 1px solid #e8e3dd;
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s ease;
    text-align: left;
}

.sibling-site-card:hover {
    border-color: #c9b8a8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.sibling-site-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.sibling-site-name {
    font-size: 1.1em;
    font-weight: 400;
    color: #5a4a3a;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sibling-site-name:after {
    content: "→";
    color: #8b7355;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.sibling-site-card:hover .sibling-site-name:after {
    transform: translateX(4px);
}

.sibling-site-description {
    font-size: 0.85em;
    color: #8b7355;
    line-height: 1.6;
}

.sibling-site-tag {
    display: inline-block;
    font-size: 0.75em;
    color: #8b7355;
    background: white;
    padding: 4px 12px;
    border-radius: 12px;
    margin-top: 10px;
    font-weight: 300;
    border: 1px solid #e8e3dd;
}

/* Coming Soonカード */
.sibling-site-card.coming-soon {
    opacity: 0.5;
    cursor: default;
}

.sibling-site-card.coming-soon:hover {
    transform: none;
    box-shadow: none;
    border-color: #e8e3dd;
}

.sibling-site-card.coming-soon .sibling-site-name {
    color: #c9b8a8;
}

.sibling-site-card.coming-soon .sibling-site-name:after {
    content: "";
}

.sibling-site-card.coming-soon .sibling-site-description {
    color: #c9b8a8;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .sibling-sites-section {
        padding: 30px 15px;
    }

    .sibling-sites-title {
        font-size: 1.1em;
    }

    .sibling-sites-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .sibling-site-card {
        padding: 20px;
    }

    .sibling-site-name {
        font-size: 1em;
    }
}