:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --border: #e4e4e7;
  --text: #18181b;
  --text-muted: #6b6b73;
  --text-faint: #9a9aa2;
  --accent: #2b5bd7;
  --accent-soft: #eef2fd;
  --tag-music-video: #2b5bd7;
  --tag-music-video-bg: #eaf0fd;
  --tag-dance: #a34dbf;
  --tag-dance-bg: #f6ecfa;
  --tag-montage: #c2660a;
  --tag-montage-bg: #fcefe1;
  --tag-dvd: #1f8a5f;
  --tag-dvd-bg: #e6f5ee;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 20, 30, 0.04), 0 1px 8px rgba(20, 20, 30, 0.03);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.app-header {
  margin-bottom: 24px;
  text-align: center;
}

.app-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.subtitle-stats {
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-top: 4px;
  min-height: 1.1em;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  position: sticky;
  top: 0;
  background: var(--bg);
  padding: 10px 0;
  z-index: 5;
}

.tabs {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
}

.tab {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background: var(--accent);
  color: #fff;
}

.search-wrap {
  flex: 1 1 240px;
  max-width: 340px;
}

#search {
  width: 100%;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
}

#search:focus {
  border-color: var(--accent);
}

.status {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 16px;
  min-height: 1.2em;
}

.status.error {
  color: #b3261e;
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.year-filter {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.year-filter:hover {
  border-color: var(--accent);
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.ad-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.ad-image {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.video-embed {
  margin-bottom: 18px;
}

.video-embed-box {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

.video-embed-hint {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.85rem;
}

.video-embed-hint p {
  margin: 0 0 12px;
}

.tv-mode-btn {
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
}

.tv-mode-btn:hover {
  opacity: 0.9;
}

.tv-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.tv-skip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.tv-skip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.video-embed-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 600;
}

.video-embed-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-embed-close {
  flex: 0 0 auto;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 6px;
}

.video-embed-close:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.video-embed-frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
}

.video-embed-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-related {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.video-related-label {
  color: var(--text-muted);
  margin-right: 2px;
}

.related-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--accent);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.78rem;
  cursor: pointer;
}

.related-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.group {
  margin-bottom: 32px;
}

.group-heading {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.005em;
  scroll-margin-top: 90px;
}

.group-heading .group-count {
  font-weight: 400;
  color: var(--text-faint);
  font-size: 0.85rem;
  margin-left: 6px;
}

.jumpnav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 18px;
}

.jump-btn {
  min-width: 26px;
  height: 26px;
  padding: 0 4px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
}

.jump-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.jump-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.jump-btn:disabled {
  color: var(--text-faint);
  opacity: 0.4;
  cursor: default;
}

.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.entry {
  border-bottom: 1px solid var(--border);
}

.entry:last-child {
  border-bottom: none;
}

.entry.highlight {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.entry-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
}

.entry-row:hover {
  background: var(--accent-soft);
}

.entry-chevron {
  flex: 0 0 auto;
  font-size: 0.7rem;
  color: var(--text-faint);
  width: 10px;
}

.entry.expanded .entry-chevron {
  transform: rotate(90deg);
}

.entry-main {
  flex: 1 1 200px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.entry-title {
  font-size: 0.92rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.new-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.entry-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag {
  display: inline-block;
  flex: 0 0 auto;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  letter-spacing: 0.01em;
}

.tag-music-video { color: var(--tag-music-video); background: var(--tag-music-video-bg); }
.tag-dance-sequence { color: var(--tag-dance); background: var(--tag-dance-bg); }
.tag-musical-montage { color: var(--tag-montage); background: var(--tag-montage-bg); }
.tag-dvd { color: var(--tag-dvd); background: var(--tag-dvd-bg); }
.tag-default { color: var(--text-muted); background: #f0f0f2; }

.entry-links {
  display: flex;
  gap: 6px;
  flex: 0 0 auto;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  font: inherit;
  padding: 0;
  cursor: pointer;
}

.icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.icon-btn svg {
  width: 14px;
  height: 14px;
}

.entry-body {
  padding: 0 14px 14px 34px;
}

.entry-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text);
  margin: 0;
  white-space: pre-line;
}

.entry-desc.placeholder {
  color: var(--text-faint);
  font-style: italic;
}

.empty-state {
  color: var(--text-muted);
  text-align: center;
  padding: 40px 0;
  font-size: 0.92rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --surface: #1b1b1e;
    --border: #2c2c30;
    --text: #f1f1f2;
    --text-muted: #a5a5ad;
    --text-faint: #77777f;
    --accent: #6f93ea;
    --accent-soft: #1c2740;
    --tag-music-video-bg: #1c2740;
    --tag-dance-bg: #2c1f36;
    --tag-montage-bg: #33230f;
    --tag-dvd-bg: #123324;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 8px rgba(0, 0, 0, 0.25);
  }
  .tag-default { background: #232326; color: var(--text-muted); }
}

@media (max-width: 640px) {
  .app {
    padding: 16px 8px 40px;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-wrap {
    flex: none;
    max-width: none;
  }

  .entry-row {
    padding: 10px 10px;
    gap: 8px;
  }

  .entry-body {
    padding: 0 10px 12px 22px;
  }

  .video-embed-hint {
    padding: 20px 12px;
  }

  .group-heading {
    scroll-margin-top: 130px;
  }
}