:root {
  --bg: #0d0e10;
  --panel: #16181b;
  --panel-border: #26292e;
  --text: #e8e6e1;
  --text-dim: #8b8f94;
  --accent: #ffb13d;
  --accent-soft: rgba(255, 177, 61, 0.35);
  --brass: #b98a4e;
  --drum-fill: #1c1f22;
  --drum-fill-hi: #24282c;
  --rim: #3a3f45;
  --danger: #e0563f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
}

h1, h2 {
  font-family: 'Oswald', 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 16px;
  border-bottom: 1px solid var(--panel-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--bg);
  background: var(--accent);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text h1 {
  font-size: 20px;
  color: var(--text);
}

.brand-text p {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
  padding: 6px 12px;
  border-radius: 6px;
}

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  padding: 28px 16px 40px;
}

.search-form {
  display: flex;
  gap: 8px;
}

.search-form input {
  flex: 1;
  background: var(--drum-fill);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
}

.search-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.rig-panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#rigSvg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.rig-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1340 / 680;
}

.rig-hint {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--text-dim);
}

.drum-shadow {
  fill: #000;
  opacity: 0.35;
}

.drum-rim {
  fill: none;
  stroke: var(--rim);
  stroke-width: 6;
}

.drum-head {
  fill: var(--drum-fill);
  stroke: var(--drum-fill-hi);
  stroke-width: 2;
  transition: fill 220ms ease-out, filter 220ms ease-out;
  cursor: pointer;
}

.rod-line {
  stroke: var(--rim);
  stroke-width: 5;
  stroke-linecap: round;
  transition: stroke 180ms ease-out, filter 180ms ease-out;
  cursor: pointer;
}

.rod-cymbal {
  fill: var(--drum-fill-hi);
  stroke: var(--rim);
  stroke-width: 2;
  transition: fill 180ms ease-out, filter 180ms ease-out;
  cursor: pointer;
}

.drum.lit .drum-head {
  fill: var(--accent);
  filter: drop-shadow(0 0 18px var(--accent-soft)) drop-shadow(0 0 34px var(--accent-soft));
}

.drum.lit .rod-line {
  stroke: var(--accent);
  filter: drop-shadow(0 0 12px var(--accent-soft));
}

.drum.lit .rod-cymbal {
  fill: var(--accent);
  filter: drop-shadow(0 0 18px var(--accent-soft));
}

.stand-bar, .stand-leg {
  stroke: var(--rim);
  stroke-width: 4;
}

.drop-slot {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: auto;
}

.drop-slot h3 {
  margin: 0;
  font-size: 10px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.drop-slot .chip-list {
  flex: 1;
  border: 1px dashed var(--panel-border);
  border-radius: 8px;
  padding: 10px;
  gap: 8px;
  min-height: 56px;
  overflow-y: auto;
  align-content: flex-start;
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
}

.panel-block {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 18px;
}

.panel-block h2 {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.drop-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px dashed var(--panel-border);
  border-radius: 10px;
  padding: 22px 12px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  color: var(--text);
}

.file-meta {
  margin-top: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
  white-space: pre-line;
}

.transport-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.btn {
  background: var(--drum-fill-hi);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}

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

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.time-display {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.volume-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-dim);
}

.volume-row input {
  flex: 1;
}

.segmented {
  display: flex;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  overflow: hidden;
}

.segment {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  padding: 9px 6px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}

.segment.active {
  background: var(--accent);
  color: var(--bg);
}

.hint-text {
  margin: 10px 0 0;
  font-size: 11px;
  color: var(--text-dim);
}

.palette {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px;
  border: 1px dashed var(--panel-border);
  border-radius: 8px;
  margin-bottom: 14px;
  max-height: 160px;
  overflow-y: auto;
}

.palette.drag-over {
  border-color: var(--accent);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 32px;
  border-radius: 6px;
  transition: outline-color 120ms ease;
  outline: 1px dashed transparent;
}

.chip-list.drag-over {
  outline-color: var(--accent);
}

.chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--drum-fill-hi);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text);
  cursor: grab;
}

.chip.dragging {
  opacity: 0.4;
}

.chip-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 0;
}

.chip-remove:hover {
  color: var(--danger);
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
}