/* リセット & ベース */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; background: #f0f2f5; color: #333; min-height: 100vh; display: flex; flex-direction: column; }
.container { max-width: 960px; margin: 0 auto; padding: 0 16px; width: 100%; }
.hidden { display: none !important; }

/* モーダル共通 */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 9999; padding: 16px; backdrop-filter: blur(4px); }
.modal { background: #fff; border-radius: 16px; padding: 32px; max-width: 560px; width: 100%; position: relative; animation: modalIn 0.3s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.modal-close { position: absolute; top: 12px; right: 16px; background: none; border: none; font-size: 28px; color: #999; cursor: pointer; line-height: 1; }
.modal-close:hover { color: #333; }
.terms-modal { max-width: 640px; max-height: 80vh; display: flex; flex-direction: column; }
.terms-modal h2 { font-size: 22px; margin-bottom: 16px; padding-right: 32px; }
.terms-content { overflow-y: auto; flex: 1; font-size: 14px; line-height: 1.8; color: #444; padding-right: 8px; }
.terms-content h3 { font-size: 15px; font-weight: 700; margin-top: 20px; margin-bottom: 8px; color: #333; }
.terms-content h3:first-child { margin-top: 0; }
.terms-content ul { padding-left: 20px; margin-bottom: 8px; }
.terms-content li { margin-bottom: 4px; }
.modal-ok-btn { display: block; width: 100%; margin-top: 16px; padding: 12px; background: linear-gradient(135deg, #92400e, #b45309); color: #fff; border: none; border-radius: 10px; font-size: 15px; font-weight: 700; cursor: pointer; font-family: inherit; flex-shrink: 0; }
.modal-ok-btn:hover { opacity: 0.9; }
.qr-zoom-modal { max-width: 400px; padding: 16px; text-align: center; background: #fff; }
.qr-zoom-modal img { max-width: 100%; max-height: 70vh; border-radius: 8px; }

/* 安全バナー */
.safety-banner { background: #fff3cd; color: #856404; padding: 10px 0; font-size: 13px; text-align: center; border-bottom: 1px solid #ffc107; }

/* ヘッダー */
.header { background: linear-gradient(135deg, #78350f, #92400e, #b45309); color: #fff; padding: 24px 0 20px; text-align: center; box-shadow: 0 4px 20px rgba(120, 53, 15, 0.3); }
.logo { font-size: 28px; font-weight: 900; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 32px; }
.header-sub { font-size: 14px; opacity: 0.9; margin-top: 4px; }

/* カテゴリカード */
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 24px; }
.category-card { border-radius: 16px; padding: 28px 20px; text-align: center; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; color: #fff; position: relative; overflow: hidden; }
.category-card::before { content: ''; position: absolute; inset: 0; background: rgba(255,255,255,0.08); opacity: 0; transition: opacity 0.2s; }
.category-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.2); }
.category-card:hover::before { opacity: 1; }
.category-card.kakao { background: linear-gradient(135deg, #fee500, #e0c800); color: #3c1e1e; }
.category-card.line { background: linear-gradient(135deg, #06c755, #04a844); }
.category-card.email { background: linear-gradient(135deg, #4a90d9, #357abd); }
.category-card.insta { background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.card-icon { font-size: 48px; margin-bottom: 12px; }
.category-card h2 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.category-card p { font-size: 13px; opacity: 0.85; }
.post-count { display: inline-block; margin-top: 10px; font-size: 12px; background: rgba(255,255,255,0.3); padding: 3px 12px; border-radius: 20px; font-weight: 500; }
.category-card.kakao .post-count { background: rgba(0,0,0,0.1); }

/* 使い方 */
.how-to-use { margin-top: 32px; }
.steps { display: flex; gap: 16px; margin-top: 8px; }
.step { flex: 1; display: flex; gap: 12px; align-items: flex-start; background: #fff; padding: 16px; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.step-num { width: 32px; height: 32px; background: linear-gradient(135deg, #92400e, #b45309); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; flex-shrink: 0; }
.step strong { font-size: 14px; display: block; margin-bottom: 2px; }
.step p { font-size: 12px; color: #888; }

.recent-section { margin-top: 32px; margin-bottom: 32px; }
.section-title { font-size: 20px; font-weight: 700; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 3px solid #b45309; display: inline-block; }

.back-btn { background: none; border: 2px solid #ddd; padding: 8px 20px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500; color: #666; margin-top: 20px; transition: all 0.2s; }
.back-btn:hover { border-color: #b45309; color: #b45309; }
.board-header { display: flex; align-items: center; gap: 16px; margin-top: 20px; padding: 20px; background: #fff; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.board-icon { font-size: 40px; }
.board-header h2 { font-size: 24px; font-weight: 700; }

.post-form { background: #fff; border-radius: 12px; padding: 24px; margin-top: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.post-form h3 { font-size: 18px; margin-bottom: 16px; font-weight: 700; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 500; color: #555; }
.required { color: #e74c3c; }
.form-group input, .form-group select, .form-group textarea { padding: 10px 12px; border: 2px solid #e8e8e8; border-radius: 8px; font-size: 15px; font-family: inherit; transition: border-color 0.2s; outline: none; width: 100%; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: #b45309; }
.form-group textarea { resize: vertical; }
.char-count { font-size: 12px; color: #999; text-align: right; }

.qr-upload-area { border: 2px dashed #ddd; border-radius: 10px; overflow: hidden; transition: border-color 0.2s; }
.qr-upload-area.dragover { border-color: #b45309; background: #fffbeb; }
.qr-upload-placeholder { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 20px; cursor: pointer; color: #999; font-size: 13px; text-align: center; }
.qr-upload-placeholder:hover { color: #b45309; }
.qr-upload-icon { font-size: 28px; }
.qr-upload-hint { font-size: 11px; color: #bbb; }
.qr-preview-wrapper { position: relative; display: inline-block; padding: 12px; text-align: center; width: 100%; }
.qr-preview-wrapper img { max-width: 160px; max-height: 160px; border-radius: 8px; border: 1px solid #eee; }
.qr-remove-btn { position: absolute; top: 4px; right: 4px; width: 28px; height: 28px; background: #e74c3c; color: #fff; border: none; border-radius: 50%; font-size: 18px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.qr-remove-btn:hover { background: #c0392b; }

.terms-agree { margin-top: 14px; font-size: 13px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; accent-color: #b45309; }
.checkbox-label a { color: #b45309; text-decoration: underline; }

.submit-btn { display: block; width: 100%; margin-top: 16px; padding: 14px; background: linear-gradient(135deg, #92400e, #b45309); color: #fff; border: none; border-radius: 10px; font-size: 16px; font-weight: 700; cursor: pointer; transition: opacity 0.2s, transform 0.1s; font-family: inherit; }
.submit-btn:hover { opacity: 0.9; }
.submit-btn:active { transform: scale(0.98); }

.filter-bar { display: flex; gap: 12px; margin-top: 16px; }
.filter-bar select { padding: 8px 12px; border: 2px solid #e8e8e8; border-radius: 8px; font-size: 14px; font-family: inherit; outline: none; background: #fff; cursor: pointer; flex: 1; }
.filter-bar select:focus { border-color: #b45309; }

.posts-list { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.post-card { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); transition: box-shadow 0.2s; position: relative; }
.post-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.post-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.post-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.post-avatar.male { background: #dbeafe; }
.post-avatar.female { background: #fce7f3; }
.post-avatar.other { background: #e0e7ff; }
.post-info { flex: 1; min-width: 0; }
.post-name { font-weight: 700; font-size: 16px; }
.post-meta { font-size: 12px; color: #888; margin-top: 2px; }
.post-badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; color: #fff; }
.post-badge.kakao { background: #e0c800; color: #3c1e1e; }
.post-badge.line { background: #06c755; }
.post-badge.email { background: #4a90d9; }
.post-badge.insta { background: linear-gradient(135deg, #f09433, #dc2743); }
.post-tags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.tag { font-size: 12px; padding: 3px 10px; border-radius: 20px; background: #f0f2f5; color: #555; font-weight: 500; }
.post-message { margin-top: 12px; font-size: 14px; line-height: 1.7; color: #444; white-space: pre-wrap; word-break: break-word; }
.post-contact { margin-top: 12px; padding: 10px 16px; background: #fffbeb; border: 1px solid #fde68a; border-radius: 8px; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.post-contact strong { color: #b45309; }
.post-contact .contact-value { font-weight: 500; word-break: break-all; }
.copy-btn { margin-left: auto; padding: 4px 12px; border: 1px solid #b45309; background: none; color: #b45309; border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: 500; transition: all 0.2s; font-family: inherit; flex-shrink: 0; }
.copy-btn:hover { background: #b45309; color: #fff; }

.post-qr { margin-top: 10px; text-align: center; }
.post-qr img { max-width: 120px; max-height: 120px; border-radius: 8px; border: 1px solid #eee; cursor: pointer; transition: transform 0.2s; }
.post-qr img:hover { transform: scale(1.05); }
.post-qr-label { font-size: 11px; color: #999; margin-top: 4px; }
.post-time { font-size: 11px; color: #bbb; margin-top: 10px; text-align: right; }
.post-delete { position: absolute; top: 12px; right: 12px; background: none; border: none; color: #ccc; cursor: pointer; font-size: 18px; padding: 4px; line-height: 1; transition: color 0.2s; }
.post-delete:hover { color: #e74c3c; }
.no-posts { text-align: center; padding: 48px 20px; color: #999; font-size: 16px; }

.ad-section { margin-top: 24px; position: relative; }
.ad-section.ad-inline { margin-top: 16px; }
.ad-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ad-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.ad-banner { display: flex; flex-direction: column; background: #fff; border-radius: 12px; overflow: hidden; text-decoration: none; color: #333; box-shadow: 0 2px 10px rgba(0,0,0,0.08); transition: transform 0.2s, box-shadow 0.2s; border: 1px solid #eee; }
.ad-banner:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,0.12); }
.ad-thumb { height: 100px; overflow: hidden; }
.ad-thumb-bg { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.ad-thumb-icon { font-size: 42px; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15)); }
.matching-bg { background: linear-gradient(135deg, #ff758c, #ff7eb3, #ff9a9e); }
.live-bg { background: linear-gradient(135deg, #a855f7, #7c3aed, #6366f1); }
.chat-bg { background: linear-gradient(135deg, #06b6d4, #0891b2, #0e7490); }
.ad-body { padding: 12px 14px; }
.ad-tag { display: inline-block; font-size: 10px; font-weight: 700; background: #f0f2f5; color: #666; padding: 2px 8px; border-radius: 4px; margin-bottom: 6px; }
.ad-title { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.ad-desc { font-size: 12px; color: #888; line-height: 1.5; }
.ad-cta { margin-top: 8px; font-size: 13px; font-weight: 700; color: #b45309; }
.ad-banner-wide { display: flex; align-items: center; background: #fff; border-radius: 12px; overflow: hidden; text-decoration: none; color: #333; box-shadow: 0 2px 10px rgba(0,0,0,0.08); transition: transform 0.2s, box-shadow 0.2s; border: 1px solid #eee; gap: 0; }
.ad-banner-wide:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.12); }
.ad-wide-thumb { width: 80px; min-height: 80px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ad-wide-body { flex: 1; padding: 12px 16px; }
.ad-wide-cta { padding: 0 16px; font-size: 13px; font-weight: 700; color: #fff; background: linear-gradient(135deg, #92400e, #b45309); align-self: stretch; display: flex; align-items: center; white-space: nowrap; }

@media (max-width: 600px) {
    .ad-grid { grid-template-columns: 1fr; }
    .ad-grid-3 { grid-template-columns: 1fr; }
    .ad-banner-wide { flex-direction: column; }
    .ad-wide-thumb { width: 100%; min-height: 60px; }
    .ad-wide-cta { width: 100%; justify-content: center; padding: 10px; }
}

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: #333; color: #fff; padding: 12px 28px; border-radius: 10px; font-size: 14px; font-weight: 500; z-index: 1000; box-shadow: 0 4px 20px rgba(0,0,0,0.3); animation: toastIn 0.3s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(20px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

.related-sites { background: #f8f9fa; padding: 20px 0; margin-top: 32px; border-top: 1px solid #e8e8e8; }
.related-sites h3 { font-size: 14px; color: #666; margin-bottom: 10px; }
.related-links { display: flex; gap: 16px; flex-wrap: wrap; }
.related-links a { font-size: 13px; color: #b45309; text-decoration: none; }
.related-links a:hover { text-decoration: underline; }

.footer { margin-top: auto; background: #2d3436; color: #b2bec3; text-align: center; padding: 24px 0; font-size: 14px; }
.footer-links { margin-top: 8px; display: flex; justify-content: center; gap: 12px; font-size: 13px; }
.footer-links a { color: #dfe6e9; text-decoration: underline; cursor: pointer; }
.footer-links a:hover { color: #fff; }
.footer-links span { color: #636e72; }
.footer-note { font-size: 11px; margin-top: 10px; opacity: 0.7; line-height: 1.6; }

@media (max-width: 600px) {
    .header { padding: 20px 0 16px; }
    .logo { font-size: 22px; }
    .category-grid { grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
    .category-card { padding: 20px 12px; }
    .card-icon { font-size: 36px; margin-bottom: 8px; }
    .category-card h2 { font-size: 14px; }
    .category-card p { font-size: 11px; }
    .steps { flex-direction: column; }
    .form-grid { grid-template-columns: 1fr; }
    .filter-bar { flex-direction: column; gap: 8px; }
    .board-header h2 { font-size: 18px; }
    .post-contact { flex-direction: column; align-items: flex-start; gap: 6px; }
    .copy-btn { margin-left: 0; }
    .modal { padding: 24px 20px; }
    .safety-banner { font-size: 12px; }
}