:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1e242c;
  --line: #2a313b;
  --text: #e6edf3;
  --muted: #9aa6b2;
  --accent: #4f8bff;
  --accent-2: #6ea8ff;
  --danger: #ff6b6b;
  --card-bg: #ffffff;
  --card-text: #1a1f29;
  --card-muted: #5b6573;
  --card-line: #e6e9ef;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ===== TOPBAR ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
}
.topbar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 {
  margin: 2px 0 0;
  font-size: 20px;
  font-weight: 600;
}
.brand-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  border-radius: 999px;
  vertical-align: middle;
}
.summary {
  font-size: 13px;
  color: var(--muted);
}
.summary strong {
  color: var(--text);
  font-weight: 600;
}

/* maker / genre tabs */
.maker-tabs,
.genre-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.maker-tab,
.genre-tab {
  flex: 0 0 auto;
  padding: 8px 14px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
}
.maker-tab:hover,
.genre-tab:hover {
  background: #232a33;
}
.maker-tab.is-active {
  background: #2f6fe3;
  border-color: #2f6fe3;
  color: #fff;
  font-weight: 600;
}
.genre-tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* 「♡ お気に入り」タブ（ジャンルタブ先頭・ハートピンクで目立たせる） */
.genre-tab-fav {
  color: #e0245e;
  border-color: rgba(224, 36, 94, 0.5);
  font-weight: 600;
}
.genre-tab-fav:hover {
  background: rgba(224, 36, 94, 0.12);
  border-color: rgba(224, 36, 94, 0.7);
}
.genre-tab-fav.is-active {
  background: #e0245e;
  border-color: #e0245e;
  color: #fff;
}
.genre-tab-fav .fav-count-badge {
  font-size: 12px;
  opacity: 0.85;
}

/* columns toolbar (1列/2列/4列) */
.columns-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.columns-label {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.columns-buttons {
  display: inline-grid;
  grid-auto-flow: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-2);
}
.columns-buttons button {
  min-height: 30px;
  padding: 6px 14px;
  background: transparent;
  color: var(--muted);
  border: 0;
  border-radius: 0;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.columns-buttons button + button {
  border-left: 1px solid var(--line);
}
.columns-buttons button:hover {
  color: var(--text);
}
.columns-buttons button.is-active {
  background: var(--accent);
  color: #fff;
}

/* price range filter（価格帯セレクト） */
.price-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.price-filter-label {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.price-select {
  flex: 0 1 auto;
  min-height: 34px;
  padding: 6px 28px 6px 12px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%239aa6b2' stroke-width='1.5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.price-select:focus {
  outline: none;
  border-color: var(--accent);
}
.price-select option {
  color: #1a1f29;
  background: #fff;
}

/* filters */
.filters {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.search {
  flex: 1;
  display: flex;
}
.search input {
  width: 100%;
  padding: 10px 12px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
}
.search input:focus {
  outline: none;
  border-color: var(--accent);
}
#resetFilters {
  padding: 10px 14px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
#resetFilters:hover {
  color: var(--text);
  border-color: var(--accent);
}

/* ===== CATALOG ===== */
main {
  padding: 16px;
  max-width: 1400px;
  margin: 0 auto;
}
.catalog {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

/* ===== スマホ（〜600px）: 列切替UIで 1/2/4 を選べる ===== */
@media (max-width: 600px) {
  body[data-columns="1"] .catalog { grid-template-columns: 1fr; }
  body[data-columns="2"] .catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  body[data-columns="4"] .catalog { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  /* 4列時はカード内テキストをコンパクトに */
  body[data-columns="4"] .card-name { font-size: 12px; }
  body[data-columns="4"] .card-price { font-size: 13px; }
  body[data-columns="4"] .card-body { padding: 6px 8px 8px; }

  /* 4列時はハートも小さく（カードからはみ出さないように）。
     base 側が !important なので、こちらも !important で位置を上書きする。 */
  body[data-columns="4"] .heart-button {
    top: 4px !important;
    left: 4px !important;
    right: auto !important;
    width: 28px;
    min-width: 28px;
    height: 28px;
    min-height: 28px;
    font-size: 14px;
  }

  body[data-columns="1"] .card-media { max-height: 360px; }
}

/* ===== PC（601px〜）: ツールバー非表示・4列固定 ===== */
@media (min-width: 601px) {
  .columns-toolbar { display: none !important; }
  /* body[data-columns] の値に関わらず PC は 4列固定 */
  .catalog,
  body[data-columns="1"] .catalog,
  body[data-columns="2"] .catalog,
  body[data-columns="4"] .catalog {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .card-name { font-size: 13px; }
  .card-price { font-size: 14px; }
  .card-body { padding: 8px 10px 10px; }
}

.card {
  background: var(--card-bg);
  color: var(--card-text);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  border: 1px solid transparent;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
  border-color: var(--accent);
}
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f6f7f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.card-media .no-image {
  color: #b8bec6;
  font-size: 12px;
}

/* 画像の上に重ねるお気に入りハートボタン（カード左上・革靴と同配置）
   左上配置は !important で確実に固定（既存の right 指定や他CSSの上書きを防ぐ）。
   .card-media 内スコープ + 素の .heart-button の両方を指定して確実に効かせる。 */
.card-media .heart-button,
.card-media .card-heart,
.heart-button,
.heart-button.card-heart {
  position: absolute !important;
  top: 8px !important;
  left: 8px !important;
  right: auto !important;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  min-width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  border: 1px solid rgba(216, 221, 230, 0.7);
  border-radius: 999px;
  color: #b42357;
  font-size: 18px;
  line-height: 1;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 2px 8px rgba(16, 24, 40, 0.28);
  cursor: pointer;
}
.heart-button:hover {
  border-color: rgba(180, 35, 87, 0.5);
  background: rgba(255, 255, 255, 0.96);
}
.heart-button span {
  display: block;
  pointer-events: none;
}
.heart-button.is-favorite {
  color: #e0245e;
  border-color: rgba(224, 36, 94, 0.55);
  background: rgba(255, 255, 255, 0.94);
}
.card-body {
  padding: 10px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.card-maker {
  font-size: 11px;
  color: var(--card-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.card-name {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--card-text);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-color {
  font-size: 12px;
  color: var(--card-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  gap: 8px;
}
.card-price {
  font-size: 15px;
  font-weight: 700;
  color: var(--card-text);
}
.card-price .yen-unit {
  font-size: 11px;
  font-weight: 500;
  color: var(--card-muted);
  margin-left: 1px;
}
.card-genre {
  font-size: 11px;
  color: var(--card-muted);
  padding: 2px 8px;
  border: 1px solid var(--card-line);
  border-radius: 999px;
  white-space: nowrap;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 40px 16px;
}
.load-more-wrap {
  display: flex;
  justify-content: center;
  margin: 20px 0 8px;
}
.load-more {
  padding: 12px 24px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.load-more:hover {
  border-color: var(--accent);
}

/* ===== MODAL ===== */
dialog {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 92vw;
  max-height: 92vh;
  width: 720px;
}
dialog::backdrop {
  background: rgba(0, 0, 0, 0.7);
}
.modal {
  position: relative;
  background: var(--card-bg);
  color: var(--card-text);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 92vh;
}
@media (min-width: 720px) {
  .modal {
    flex-direction: row;
  }
}
.modal .close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 36px; height: 36px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.modal-media {
  position: relative; /* モーダル内お気に入りハートの基準 */
  flex: 0 0 auto;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f6f7f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* モーダル内のお気に入りハート（画像左上。閉じる×は右上なので重ならない）。
   base .heart-button が position:absolute !important / top:8px / left:8px を効かせるので、
   ここでは少し大きめサイズと前面化のみ上書きする。 */
.modal-media .modal-heart,
.heart-button.modal-heart {
  z-index: 6;
  width: 40px;
  min-width: 40px;
  height: 40px;
  min-height: 40px;
  font-size: 20px;
}
@media (min-width: 720px) {
  .modal-media {
    width: 48%;
    aspect-ratio: auto;
    align-self: stretch;
  }
}
.modal-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.modal-body {
  padding: 18px 20px 20px;
  overflow-y: auto;
  flex: 1 1 auto;
}
.modal-body h2 {
  margin: 4px 0 6px;
  font-size: 18px;
  font-weight: 700;
}
.modal-color {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--card-muted);
}
.modal-details {
  margin: 0 0 16px;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 14px;
  font-size: 13px;
}
.modal-details dt {
  color: var(--card-muted);
  font-weight: 500;
}
.modal-details dd {
  margin: 0;
  color: var(--card-text);
  word-break: break-all;
}
.modal-actions {
  display: flex;
  gap: 8px;
}
.primary-link {
  display: inline-block;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.primary-link:hover {
  background: var(--accent-2);
}

/* ===== FOOTER ===== */
.footer {
  padding: 24px 16px 40px;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
}

/* small screens */
@media (max-width: 375px) {
  .topbar { padding: 10px 12px; }
  h1 { font-size: 18px; }
  main { padding: 12px; }
  .columns-buttons button { padding: 6px 10px; font-size: 12px; }
}