/* ===== カラートークン（ダーク既定） ===== */
:root {
    --bg-body: #121212;
    --bg-surface: #1e1e1e;
    --bg-surface-alt: #1a1a1a;
    --bg-surface-alt2: #161616;
    --bg-input: #2a2a2a;
    --bg-thumb: #000;
    --bg-modal-overlay: rgba(0, 0, 0, 0.85);

    --text-primary: #ffffff;
    --text-title: #e0e0e0;
    --text-secondary: #aaaaaa;
    --text-tertiary: #888;
    --text-muted: #666;
    --text-faint: #555;
    --text-on-accent: #ffffff;
    --text-on-yellow: #000;

    --border: #333;
    --border-alt: #2a2a2a;
    --border-strong: #3a3a3a;
    --border-soft: #444;

    --accent: #ff3b30;
    --warn: #ff9500;
    --warn-soft: #ff950055;
    --yellow: #ffcc00;
    --star: #f5a623;
    --success: #10c060;

    --tag-genre-bg: #1e3a5f;
    --tag-genre-fg: #7db8f0;
    --tag-actress-bg: #3a1e2a;
    --tag-actress-fg: #f07db8;

    --link: #7db8f0;
    --link-hover: #a8d4ff;
    --link-underline: #7db8f055;

    --warning-bg: #1a0a0a;
    --warning-border: #7f1d1d;
    --warning-fg: #f87171;

    --disclaimer-bg: #1e1a0e;
    --disclaimer-border: #664400;
    --disclaimer-fg: #c9b77a;
}

/* ===== ライトモード上書き ===== */
@media (prefers-color-scheme: light) {
    :root {
        --bg-body: #faf7f0;
        --bg-surface: #ffffff;
        --bg-surface-alt: #f4f0e5;
        --bg-surface-alt2: #efebdf;
        --bg-input: #e8e3d4;
        --bg-thumb: #1a1a1a;
        --bg-modal-overlay: rgba(30, 24, 16, 0.55);

        --text-primary: #1a1a1a;
        --text-title: #222;
        --text-secondary: #555;
        --text-tertiary: #777;
        --text-muted: #999;
        --text-faint: #aaa;
        --text-on-accent: #ffffff;
        --text-on-yellow: #000;

        --border: #dcd5c4;
        --border-alt: #e5ddc9;
        --border-strong: #c5bda8;
        --border-soft: #b5ad99;

        --accent: #d62828;
        --warn: #d97706;
        --warn-soft: #d9770633;
        --yellow: #e8a500;
        --star: #c47d0a;
        --success: #0a8f47;

        --tag-genre-bg: #e0ecf7;
        --tag-genre-fg: #1e5a9f;
        --tag-actress-bg: #f9e4ee;
        --tag-actress-fg: #9f1e5a;

        --link: #1e5a9f;
        --link-hover: #133f73;
        --link-underline: #1e5a9f55;

        --warning-bg: #fce8e6;
        --warning-border: #e06a60;
        --warning-fg: #a02a1c;

        --disclaimer-bg: #fdf4d8;
        --disclaimer-border: #b88a1e;
        --disclaimer-fg: #7a5a0f;
    }
}

/* リセットと基本設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ヘッダー */
.header {
    background-color: var(--bg-surface);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.header-brand {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    min-width: 0;
    flex: 1 1 auto;
    line-height: 1.2;
}

.header-nav {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
    align-items: center;
}

.header-nav-link {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    text-decoration: none;
    white-space: nowrap;
}

.header-nav-link:hover {
    color: var(--text-secondary);
}

.header h1 {
    font-size: 1.15rem;
    font-weight: bold;
    color: var(--accent);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.header-sub {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    font-weight: normal;
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.subtitle {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.4;
}

@media (max-width: 380px) {
    .header h1 { font-size: 1rem; }
    .header-sub { font-size: 0.65rem; }
    .subtitle { display: none; }
}

/* メインコンテナ */
.container {
    padding: 12px 8px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 一覧性の高いグリッドレイアウト（モバイルファースト） */
.grid-container {
    display: grid;
    /* スマホは基本2列、非常に細い端末は1列になるように最適化 */
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

/* PC等の幅広画面向け調整 */
@media (min-width: 600px) {
    .grid-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
}
@media (min-width: 900px) {
    .grid-container {
        grid-template-columns: repeat(4, 1fr);
    }
}
@media (min-width: 1200px) {
    .grid-container {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* 個別アイテムのスタイル */
.item-card {
    background-color: var(--bg-surface);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-alt);
}

/* 余計なアニメーションは排除 (要件通り) */

.item-thumb-container {
    position: relative;
    width: 100%;
    /* パッケージ画像の縦横比に近い比率を持たせる */
    aspect-ratio: 3 / 4;
    background-color: var(--bg-thumb);
}

.item-thumb {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.discount-tag {
    position: absolute;
    top: 0;
    left: 0;
    background-color: var(--accent);
    color: var(--text-on-accent);
    font-weight: bold;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-bottom-right-radius: 6px;
}

.item-details {
    padding: 8px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}

.item-title {
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--text-title);
    /* 2行でクリップ (視認性確保) */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
}

.item-price-info {
    display: flex;
    flex-direction: column;
}

.item-sale-price {
    color: var(--accent);
    font-weight: bold;
    font-size: 1rem;
}

.item-orig-price {
    color: var(--text-tertiary);
    text-decoration: line-through;
    font-size: 0.7rem;
}

/* モーダルのスタイル設定 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--bg-modal-overlay);
    z-index: 100;
    display: none;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* 中央寄せ */
    width: 90%;
    max-width: 500px;
    background-color: var(--bg-surface);
    border-radius: 8px;
    z-index: 101;
    display: none;
    max-height: 90vh; /* スマホ画面に収める */
    overflow-y: auto;
    overscroll-behavior: contain; /* iframe内スクロールが親にチェーンするのを防ぐ */
    border: 1px solid var(--border-alt);
}

/* モーダル表示クラス */
body.modal-open {
    overflow: hidden; /* 背景のスクロールを止める */
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 1rem;
    font-weight: bold;
    line-height: 1.4;
    padding-right: 12px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
}

.modal-content {
    padding: 16px;
}

.video-container {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-thumb);
    margin-bottom: 16px;
    border-radius: 4px;
    overflow: hidden;
}

.video-container video,
.video-container iframe {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border: 0;
    display: block;
}

.sample-gallery {
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
    margin-bottom: 16px;
}
.sample-gallery.visible {
    display: grid;
}
.sample-gallery img {
    width: 100%;
    height: auto;
    display: block;
    background-color: var(--bg-thumb);
    border-radius: 2px;
}

.modal-info {
    display: flex;
    flex-direction: column;
}

.price-container {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}

.original-price {
    color: var(--text-tertiary);
    text-decoration: line-through;
    font-size: 0.9rem;
}

.sale-price {
    color: var(--accent);
    font-size: 1.5rem;
    font-weight: bold;
}

.discount-badge {
    display: inline-block;
    align-self: flex-start;
    background-color: var(--yellow);
    color: var(--text-on-yellow);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: 16px;
}

.buy-button {
    display: block;
    width: 100%;
    padding: 14px 0;
    background-color: var(--accent);
    color: var(--text-on-accent);
    text-align: center;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    font-size: 1.1rem;
}

.modal-detail-link {
    display: block;
    text-align: center;
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--link);
    text-decoration: none;
}
.modal-detail-link:hover { color: var(--link-hover); }

/* スクロール検知用のテキスト */
.scroll-sentinel {
    text-align: center;
    padding: 24px 0;
    color: var(--text-tertiary);
    font-size: 0.9rem;
    display: none;
}

/* ---- サイト情報パネル ---- */
.site-info-bar {
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-alt);
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.site-info-text {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.site-info-link {
    color: var(--link);
    text-decoration: none;
    border-bottom: 1px solid var(--link-underline);
}
.site-info-link:hover { color: var(--link-hover); }

.site-info-disclaimer {
    font-size: 0.72rem;
    color: var(--disclaimer-fg);
    line-height: 1.5;
    padding: 6px 10px;
    background-color: var(--disclaimer-bg);
    border-left: 3px solid var(--disclaimer-border);
    border-radius: 2px;
}

.site-info-updated {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

/* ---- フィルターバー ---- */
.filter-bar {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 12px;
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-alt);
    position: sticky;
    top: 57px; /* ヘッダー高さ分 */
    z-index: 9;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.filter-bar::-webkit-scrollbar { display: none; }

.filter-pill {
    flex-shrink: 0;
    background-color: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 0.75rem;
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.6;
}
.filter-pill.active {
    background-color: var(--accent);
    color: var(--text-on-accent);
    border-color: var(--accent);
}

/* ---- 件数表示 ---- */
.result-count {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    padding: 8px 4px 4px;
}

/* ---- タグ共通 ---- */
.tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin: 4px 0;
}
.tag {
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 3px;
    line-height: 1.5;
    white-space: nowrap;
}
.tag-genre {
    background-color: var(--tag-genre-bg);
    color: var(--tag-genre-fg);
}
.tag-actress {
    background-color: var(--tag-actress-bg);
    color: var(--tag-actress-fg);
}

/* モーダル内タグ */
.modal-tags {
    margin-bottom: 12px;
    flex-wrap: wrap;
}

/* ---- ソートバー ---- */
.sort-bar {
    display: flex;
    gap: 6px;
    padding: 6px 12px;
    background-color: var(--bg-surface-alt2);
    border-bottom: 1px solid var(--border-alt);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.sort-bar::-webkit-scrollbar { display: none; }

.sort-btn {
    flex-shrink: 0;
    background: none;
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 0.72rem;
    padding: 3px 10px;
    cursor: pointer;
    white-space: nowrap;
}
.sort-btn.active {
    border-color: var(--accent);
    color: var(--accent);
}

.sort-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    margin-left: 4px;
    border-radius: 50%;
    background: var(--border-strong);
    color: var(--text-secondary);
    font-size: 0.6rem;
    font-weight: bold;
    cursor: default;
    position: relative;
    vertical-align: middle;
}
.sort-tip::after {
    content: attr(data-tooltip);
    white-space: pre;
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.72rem;
    font-weight: normal;
    line-height: 1.5;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--border-soft);
    width: max-content;
    max-width: 240px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 50;
}
.sort-tip:hover::after,
.sort-tip:focus::after {
    opacity: 1;
}

/* ---- 本日期限バッジ（カード画像上） ---- */
.expire-badge {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 0.7rem;
    font-weight: bold;
    padding: 2px 7px;
    border-bottom-left-radius: 6px;
    z-index: 2;
}
.expire-today {
    background-color: var(--warn);
    color: var(--text-on-accent);
}

/* カード枠：本日期限は薄いオレンジボーダー */
.card-urgent {
    outline: 1px solid var(--warn-soft);
}

/* ---- レビュー ---- */
.item-review {
    display: flex;
    align-items: baseline;
    gap: 3px;
    margin-bottom: 3px;
    font-size: 0.72rem;
}
.review-stars {
    color: var(--star);
    letter-spacing: -0.5px;
}
.review-score {
    color: var(--star);
    font-weight: bold;
}
.review-count {
    color: var(--text-tertiary);
}
.satisfaction-score {
    font-size: 0.68rem;
    color: var(--text-tertiary);
    margin-bottom: 3px;
}
.satisfaction-score strong {
    color: var(--success);
}

/* ---- 残り時間テキスト（カード内） ---- */
.remaining-time {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    margin-bottom: 3px;
}
.remaining-urgent {
    color: var(--warn);
    font-weight: bold;
}

/* ---- 本日期限フィルターピル ---- */
.filter-pill-today {
    border-color: var(--warn);
    color: var(--warn);
}
.filter-pill-today.active {
    background-color: var(--warn);
    color: var(--text-on-accent);
    border-color: var(--warn);
}

/* ---- モーダル内残り時間 ---- */
.modal-remaining {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}

/* ---- 商品詳細ページ ---- */
.breadcrumb {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    padding: 12px 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: var(--link);
    text-decoration: none;
}
.breadcrumb a:hover { color: var(--link-hover); }
.breadcrumb-sep { color: var(--text-muted); }
.breadcrumb-current {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 240px;
}

.item-detail {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 4px 48px;
}

.item-detail-title {
    font-size: 1.15rem;
    font-weight: bold;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.item-detail-media {
    margin-bottom: 16px;
}
.item-detail-media .video-container {
    margin-bottom: 0;
}
.item-detail-media .sample-gallery {
    margin-bottom: 0;
}

.item-detail-price-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}
.item-detail-price-row .price-container {
    margin-bottom: 0;
}
.item-detail-price-row .discount-badge {
    margin-bottom: 0;
}

.item-detail .buy-button {
    margin: 16px 0 24px;
}

.item-detail-section {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-alt);
}

.item-detail-review {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-alt);
}

.item-detail-meta {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-alt);
}

.item-detail-related {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-alt);
}

.item-detail-h3 {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--text-tertiary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.item-detail-dl {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 8px 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.item-detail-dl dt {
    color: var(--text-tertiary);
}

.item-detail-review .satisfaction-score {
    margin-top: 6px;
}
.item-detail-review .satisfaction-score small {
    color: var(--text-muted);
    font-weight: normal;
    margin-left: 6px;
}

/* ---- about / 静的ページ共通 ---- */
.about-content {
    max-width: 680px;
    margin: 0 auto;
    padding: 24px 8px 48px;
}

.about-heading {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.about-section {
    margin-bottom: 28px;
    padding: 16px;
    background-color: var(--bg-surface);
    border-radius: 6px;
    border: 1px solid var(--border-alt);
}

.about-section-title {
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.about-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-section-warning {
    border-color: var(--warning-border);
    background-color: var(--warning-bg);
}

.about-section-title-warning {
    color: var(--warning-fg);
}

.about-cta {
    display: inline-block;
    margin-top: 14px;
    padding: 10px 24px;
    background-color: var(--accent);
    color: var(--text-on-accent);
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.9rem;
}

.about-note {
    margin-top: 10px;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.about-footer-links {
    display: flex;
    gap: 16px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.about-back-link {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-soft);
    padding-bottom: 2px;
}

.about-link {
    color: var(--link);
    text-decoration: none;
    border-bottom: 1px solid var(--link-underline);
}

.about-link:hover {
    color: var(--link-hover);
}