/* ===== 基本設定 ===== */
:root {
  --bg: #0e0e12;
  --bg-elevated: #17171d;
  --bg-card: #1c1c24;
  --border: #2a2a34;
  --text: #eceef2;
  --text-dim: #9a9aa8;
  --accent: #ff5c72;
  --accent-dim: #ff5c7233;
  --accent2: #5cc8ff;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", Meiryo, sans-serif;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

a {
  color: var(--accent2);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

img, svg { max-width: 100%; }

/* ===== ヘッダー / ナビ ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
  background: rgba(14, 14, 18, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.06em;
  font-size: 15px;
  color: var(--text);
}
.brand:hover { text-decoration: none; color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.main-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.main-nav a {
  color: var(--text-dim);
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 8px;
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--text);
  background: var(--bg-card);
  text-decoration: none;
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: calc(57px + env(safe-area-inset-top));
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 8px;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
    display: none;
    max-height: calc(100vh - 57px - env(safe-area-inset-top));
    overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px; font-size: 15px; }
}

/* ===== メインビュー ===== */
.view {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 60px;
  min-height: 70vh;
}

.loading, .empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 16px;
}

.app-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding: 20px;
  border-top: 1px solid var(--border);
}
.app-footer p { margin: 4px 0; }
.footer-links a { color: var(--text-dim); margin: 0 6px; }
.footer-links a:hover { color: var(--accent2); }
.footer-donate a {
  display: inline-block;
  margin-top: 6px;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 6px;
  padding: 4px 10px;
  text-decoration: none;
}
.footer-donate a:hover { background: var(--accent-dim); }

/* ===== 共通コンポーネント ===== */
.page-title {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 6px;
}
.page-lead {
  color: var(--text-dim);
  font-size: 14px;
  margin: 0 0 20px;
  line-height: 1.7;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.chip.active {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}
button.chip { cursor: pointer; font-family: inherit; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #1a0006; font-weight: 700; }
.btn.fav.is-active { color: var(--accent); border-color: var(--accent); }

input[type="text"], input[type="search"], select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
}
input[type="text"]:focus, input[type="search"]:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

/* ===== 年表ビュー ===== */
.decade-block {
  margin-bottom: 36px;
}
.decade-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}
.decade-year {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
}
.decade-desc {
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.8;
  margin: 0 0 14px;
}
.artist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

/* ===== アーティストカード ===== */
.artist-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  color: var(--text);
}
.artist-card:hover {
  border-color: var(--accent);
  text-decoration: none;
}
.artist-card .name {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
}
.artist-card .meta {
  font-size: 12px;
  color: var(--text-dim);
}

/* ===== 一覧ページ ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
  align-items: center;
}
.filter-bar input[type="search"] { flex: 1 1 220px; }
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}
.result-count {
  color: var(--text-dim);
  font-size: 13px;
  margin: 6px 0 14px;
}
.personnel-section {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}
.personnel-section .section-title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 4px;
}
.personnel-section .section-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin: 0 0 12px;
}
.album-hit-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
a.album-row.personnel-hit {
  text-decoration: none;
  color: inherit;
  border-left: 3px solid var(--accent2);
}
a.album-row.personnel-hit:hover {
  border-color: var(--accent2);
}
.personnel-hit .hit-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent2);
  background: rgba(92, 200, 255, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 6px;
  vertical-align: middle;
}
.personnel-hit .album-artist {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}
.personnel-hit .personnel-snippet {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ===== アーティスト詳細 ===== */
.detail-header h1 {
  font-size: 24px;
  margin: 0 0 6px;
}
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--text-dim);
  font-size: 13px;
}
.discography {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.album-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  flex-wrap: wrap;
}
.album-artwork {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-elevated);
}
.album-artwork-placeholder {
  border: 1px solid var(--border);
}
.album-info { flex: 1; min-width: 120px; }
.album-row .album-title { font-weight: 600; font-size: 14px; }
.album-row .album-year { color: var(--text-dim); font-size: 12px; margin-left: 8px; }
.album-links { display: flex; gap: 8px; }
.album-links a {
  font-size: 12px;
  padding: 5px 9px;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.album-links a:hover { color: var(--text); border-color: var(--accent); text-decoration: none; }
.pr-label {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 5px;
  vertical-align: middle;
}
.tracklist {
  margin-top: 6px;
  width: 100%;
  font-size: 0.85em;
}
.tracklist summary {
  cursor: pointer;
  color: var(--text-dim);
  user-select: none;
}
.tracklist summary:hover { color: var(--text); }
.tracklist ol {
  margin: 6px 0 0;
  padding-left: 22px;
  color: var(--text-dim);
}
.tracklist li { padding: 1px 0; }
.tracklist .track-length {
  color: var(--text-dim);
  opacity: 0.7;
  font-size: 0.9em;
}

/* ===== ジャンル系統図 ===== */
.genealogy-wrap {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.genre-node rect {
  fill: var(--bg-elevated);
  stroke: var(--border);
  rx: 8;
}
.genre-node text {
  fill: var(--text);
  font-size: 11px;
  font-family: var(--font);
}
.genre-node { cursor: pointer; }
.genre-node:hover rect { stroke: var(--accent); }
.genealogy-wrap .edge {
  stroke: var(--text-dim);
  stroke-width: 1.4;
  fill: none;
  marker-end: url(#arrow);
}

/* ===== 相関図 ===== */
.relations-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.relations-wrap svg { display: block; width: 100%; height: 560px; touch-action: none; }
.rel-link { stroke: var(--border); stroke-width: 1.2; }
.rel-node circle { stroke: var(--bg); stroke-width: 1.5; }
.rel-node.group circle { fill: var(--accent); }
.rel-node.person circle { fill: var(--accent2); }
.rel-node text { fill: var(--text); font-size: 10px; pointer-events: none; }
.rel-legend { display: flex; gap: 16px; padding: 10px 16px; font-size: 12px; color: var(--text-dim); border-top: 1px solid var(--border); }
.rel-legend span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.group { background: var(--accent); }
.dot.person { background: var(--accent2); }

/* ===== 名盤ガイド / 用語集 ===== */
.guide-genre { margin-bottom: 32px; }
.guide-genre h2 { font-size: 17px; margin-bottom: 4px; }
.guide-genre .genre-desc { color: var(--text-dim); font-size: 13px; margin-bottom: 12px; }
.album-pick {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
}
.album-pick .title { font-weight: 700; font-size: 14px; }
.album-pick .artist { color: var(--text-dim); font-size: 12px; margin-bottom: 6px; }
.album-pick .note { font-size: 13px; line-height: 1.7; }

.glossary-item {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.glossary-item dt { font-weight: 700; margin-bottom: 4px; }
.glossary-item dd { margin: 0; color: var(--text-dim); font-size: 13.5px; line-height: 1.8; }

/* ===== 統計 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card h3 { margin: 0 0 12px; font-size: 14px; color: var(--text-dim); }
.bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.bar-label { width: 130px; font-size: 12px; color: var(--text-dim); flex-shrink: 0; text-align: right; }
.bar-track { flex: 1; background: var(--bg-elevated); border-radius: 6px; overflow: hidden; height: 16px; }
.bar-fill { background: var(--accent); height: 100%; }
.bar-value { font-size: 12px; color: var(--text-dim); width: 32px; }

/* ===== お気に入り ===== */
.empty-hint { color: var(--text-dim); font-size: 14px; }