/* 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;
}

/* 利用規約モーダル */
.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, #581c87, #7e22ce);
    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コード拡大モーダル */
.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, #581c87, #7e22ce, #9333ea);
    color: #fff;
    padding: 24px 0 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(126, 34, 206, 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, #581c87, #7e22ce);
    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;
}

/* ===== 最新投稿セクション ===== */
.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 #7e22ce;
    display: inline-block;
}

/* ===== 掲示板画面 ===== */
.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: #7e22ce;
    color: #7e22ce;
}

.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;
}

/* ===== 投稿フォーム ===== */
.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: #7e22ce;
}

.form-group textarea {
    resize: vertical;
}

.char-count {
    font-size: 12px;
    color: #999;
    text-align: right;
}

/* QRアップロードエリア */
.qr-upload-area {
    border: 2px dashed #ddd;
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.qr-upload-area.dragover {
    border-color: #7e22ce;
    background: #faf5ff;
}

.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: #7e22ce;
}

.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;
}

/* 利用規約同意 */
.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: #7e22ce;
}

.checkbox-label a {
    color: #7e22ce;
    text-decoration: underline;
}

.submit-btn {
    display: block;
    width: 100%;
    margin-top: 16px;
    padding: 14px;
    background: linear-gradient(135deg, #581c87, #7e22ce);
    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);
}

/* ===== フィルター ===== */
.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: #7e22ce;
}

/* ===== 投稿一覧 ===== */
.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: #faf5ff;
    border: 1px solid #d8b4fe;
    border-radius: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.post-contact strong { color: #7e22ce; }
.post-contact .contact-value { font-weight: 500; word-break: break-all; }

.copy-btn {
    margin-left: auto;
    padding: 4px 12px;
    border: 1px solid #7e22ce;
    background: none;
    color: #7e22ce;
    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: #7e22ce;
    color: #fff;
}

/* QRコード表示 */
.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;
}

/* ===== 広告バナー ===== */
.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: #7e22ce; }

.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, #581c87, #7e22ce);
    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; }
}

/* ===== トースト ===== */
.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); }
}

/* 関連サイト */
.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: #7e22ce; text-decoration: none; }
.related-links a:hover { text-decoration: underline; }

/* ===== フッター ===== */
.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; }

/* ===== レスポンシブ ===== */
@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; }
}