:root {
  --bg: #1a1a2e;
  --bg2: #16213e;
  --bg3: #0f3460;
  --text: #e0e0e0;
  --text2: #a0a0b0;
  --accent: #e94560;
  --accent2: #533483;
  --green: #4ecca3;
  --yellow: #f0c040;
  --radius: 6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

#app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  padding: 30px 0 20px;
  border-bottom: 1px solid var(--bg3);
  margin-bottom: 24px;
}
header h1 {
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 1px;
}
header .subtitle {
  color: var(--text2);
  font-size: 14px;
}

section {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

/* Section collapse toggle */
.section-toggle {
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toggle-icon {
  font-size: 12px;
  transition: transform 0.2s;
  display: inline-block;
}
.section-toggle.collapsed .toggle-icon {
  transform: rotate(-90deg);
}

h2 {
  font-size: 16px;
  color: var(--text2);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.search-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.search-bar input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
}
.search-bar button {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: white;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
.search-bar button:hover { opacity: 0.9; }
#search-dl-all {
  background: var(--green);
  color: #111;
}

#search-status {
  margin-top: 10px;
  color: var(--text2);
  font-size: 13px;
}

#search-results {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 10px;
}

.result-card {
  background: var(--bg);
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.result-card .title {
  font-weight: 600;
  font-size: 14px;
  word-break: break-word;
}
.result-card .meta {
  font-size: 12px;
  color: var(--text2);
  display: flex;
  justify-content: space-between;
}
.result-card .actions {
  display: flex;
  gap: 6px;
}
.result-card button {
  flex: 1;
  padding: 6px 12px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
}
.btn-dl { background: var(--accent); color: white; }
.btn-list { background: var(--bg3); color: var(--text); }
.btn-dl:hover, .btn-list:hover { opacity: 0.85; }

.dl-item {
  background: var(--bg);
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 8px;
}
.dl-item .dl-name {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  word-break: break-all;
}
.dl-item .dl-bar {
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}
.dl-item .dl-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s;
}
.dl-item .dl-bar-fill.done { background: var(--green); }
.dl-item .dl-bar-fill.error { background: var(--yellow); }
.dl-item .dl-info {
  font-size: 11px;
  color: var(--text2);
  display: flex;
  justify-content: space-between;
}

.extract-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.extract-controls input {
  flex: 1;
  min-width: 150px;
  padding: 10px 14px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.extract-controls button {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent2);
  color: white;
  font-size: 14px;
  cursor: pointer;
}
#extract-status {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text2);
}

.wav-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.wav-controls input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.wav-controls button {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: white;
  font-size: 14px;
  cursor: pointer;
}

.wav-player {
  margin-top: 14px;
}

.now-playing {
  font-size: 13px;
  color: var(--green);
  margin-bottom: 6px;
  min-height: 18px;
}

.audio-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.audio-progress {
  flex: 1;
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
}

.audio-progress-fill {
  height: 100%;
  background: var(--green);
  border-radius: 3px;
  width: 0%;
  transition: width 0.1s;
}

#wav-time {
  font-size: 12px;
  color: var(--text2);
  min-width: 40px;
}

.no-files {
  color: var(--text2);
  font-size: 13px;
  padding: 12px 0;
}

.wav-summary {
  font-size: 13px;
  color: var(--text2);
  margin-top: 12px;
  margin-bottom: 12px;
  min-height: 18px;
}

/* Library cards */
.wav-library {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.library-card {
  background: var(--bg2);
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 8px;
}

.library-header {
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  background: var(--bg);
  border-bottom: 1px solid var(--bg3);
  transition: border-color 0.15s;
  display: flex;
  align-items: center;
  gap: 12px;
}
.library-header:hover {
  border-color: var(--accent);
}
.library-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}
.library-header .lib-meta {
  font-size: 11px;
  color: var(--text2);
  margin-left: auto;
}

.library-programs {
  padding: 8px 16px 12px;
}

/* Program cards */
.program-card {
  margin-top: 10px;
}
.program-card:first-child {
  margin-top: 0;
}

.program-header {
  cursor: default;
  user-select: none;
  margin-bottom: 6px;
}
.program-header h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  display: inline;
}
.program-header .prog-meta {
  font-size: 10px;
  color: var(--text2);
  margin-left: 6px;
}

.program-samples {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  gap: 4px;
}

/* Tag viewer */
.tag-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag-controls input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.tag-controls button {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: white;
  font-size: 14px;
  cursor: pointer;
}
.tag-controls button:hover { opacity: 0.9; }

.tag-status {
  font-size: 13px;
  color: var(--text2);
  margin-top: 10px;
  margin-bottom: 8px;
}

.tag-partitions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.tag-part-btn {
  padding: 6px 14px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.tag-part-btn:hover {
  border-color: var(--accent);
}
.tag-part-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
  cursor: default;
}

.tag-volumes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 6px;
  margin-bottom: 12px;
}

.vol-item {
  padding: 8px 12px;
  border: 1px solid var(--bg3);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.vol-item:hover {
  border-color: var(--accent);
}
.vol-item.selected {
  border-color: var(--green);
  background: rgba(78, 204, 163, 0.1);
}

.tag-detail {
  margin-top: 8px;
}

.tag-detail h4 {
  font-size: 14px;
  color: var(--text);
  margin: 0 0 8px;
}

.tag-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  background: var(--bg3);
  color: var(--text);
}

.tag-chip .tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Sample cards */
.sample-card {
  background: var(--bg);
  border: 1px solid var(--bg3);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  transition: border-color 0.15s, background 0.15s;
}
.sample-card:hover {
  border-color: var(--accent);
}
.sample-card.playing {
  border-color: var(--green);
  background: rgba(78, 204, 163, 0.15);
}
.sample-card .sample-name {
  font-size: 10px;
  color: var(--text);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
.sample-card .sample-play-icon {
  display: none;
}

/* Collapse all button */
.wav-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.collapse-all-btn {
  background: var(--bg3);
  color: var(--text2);
  border: none;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
}
.collapse-all-btn:hover {
  color: var(--text);
}

/* Library collapse state */
.library-card.collapsed .library-programs {
  display: none;
}
.library-header .lib-toggle {
  font-size: 11px;
  transition: transform 0.2s;
  margin-left: 8px;
  color: var(--text2);
}
.library-card.collapsed .lib-toggle {
  transform: rotate(-90deg);
}