:root {
  --bg: #14161a;
  --panel: #1d2026;
  --panel-2: #252a32;
  --line: #333a45;
  --text: #e7eaee;
  --muted: #8a93a1;
  --accent: #ff7a3d;
  --accent-2: #ffb27a;
  --ok: #4cc38a;
  --danger: #e5534b;
  --cell-w: 30px;
  --label-w: 160px;
  --cell-h: 34px;
  --hit: var(--c0);
  --gold: #f5c542;
  /* pattern colours, used to group patterns in the song */
  --c0: #ff7a3d;
  --c1: #4fa3ff;
  --c2: #4cc38a;
  --c3: #e5c04b;
  --c4: #c77dff;
  --c5: #ff6b9a;
  --c6: #3dd6d0;
  --c7: #9aa5b8;
}

* { box-sizing: border-box; }

html, body { margin: 0; height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

button, input, select {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
}

button { cursor: pointer; }
button:hover { border-color: var(--muted); }
button:active { transform: translateY(1px); }
button.primary { background: var(--accent); border-color: var(--accent); color: #1a0d05; font-weight: 600; }
button.danger:hover { border-color: var(--danger); color: var(--danger); }
input[type="range"] { padding: 0; accent-color: var(--accent); }

.top {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 10px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.top h1 { margin: 0; font-size: 20px; letter-spacing: 0.5px; }
.top .sub { color: var(--muted); }
.dirty { color: var(--accent-2); }
.status { margin-left: auto; color: var(--muted); }
.status.error { color: var(--danger); }

.layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 14px;
  padding: 14px;
  align-items: start;
}

.side {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}
.side h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 16px 0 8px; }
.side h2:first-child { margin-top: 0; }
.side-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.side-buttons.three { grid-template-columns: repeat(3, 1fr); }
.side-buttons.three button { padding: 6px 4px; font-size: 13px; }

.list { list-style: none; margin: 8px 0 0; padding: 0; max-height: 30vh; overflow: auto; }
.list li { user-select: none; align-items: center; }
.list li .pname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list li .dot { flex: 0 0 10px; height: 10px; border-radius: 50%; }
.list li .num { flex: 0 0 auto; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 14px; }
.hint.small { margin: 10px 2px 0; }
.list li {
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.list li:hover { background: var(--panel-2); }
.list li.active { background: var(--panel-2); outline: 1px solid var(--accent); }
.list li .meta { color: var(--muted); font-size: 12px; white-space: nowrap; }
.list .empty { color: var(--muted); cursor: default; }
.list .empty:hover { background: none; }

.main { display: grid; gap: 14px; min-width: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}

.settings { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: flex-end; }
.settings label { display: grid; gap: 4px; color: var(--muted); font-size: 12px; }
.settings label.wide { min-width: 220px; flex: 1; }
.settings input[type="number"] { width: 80px; }
.settings input[type="text"] { width: 100%; }
.pair { display: flex; align-items: center; gap: 6px; color: var(--text); }
.pair input[type="number"] { width: 62px; }
.unit { color: var(--muted); }
output { min-width: 28px; color: var(--text); font-variant-numeric: tabular-nums; }

.transport { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.transport .spacer { flex: 1; }
.play { min-width: 110px; font-weight: 600; font-size: 15px; padding: 9px 16px; }
.play.on { background: var(--ok); border-color: var(--ok); color: #05150d; }
.pos { color: var(--muted); font-variant-numeric: tabular-nums; min-width: 230px; }
.brush { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.brush-label { color: var(--muted); font-size: 12px; }
.preset { padding: 4px 9px; font-size: 12px; }
.preset.sel { border-color: var(--accent); color: var(--accent-2); }

.gridpanel { padding: 0; overflow: hidden; }
.grid-scroll { overflow-x: auto; padding-bottom: 4px; }
.grid { position: relative; padding: 6px 0; }

.row { display: flex; height: var(--cell-h); align-items: stretch; }
.row.head { height: 24px; }

.label {
  position: sticky;
  left: 0;
  z-index: 3;
  flex: 0 0 var(--label-w);
  width: var(--label-w);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px 0 14px;
  background: var(--panel);
  border-right: 1px solid var(--line);
}
.label .name { cursor: pointer; background: none; border: 0; padding: 4px 0; color: var(--text); text-align: left; }
.label .name:hover { color: var(--accent-2); }
.label .rm { background: none; border: 0; color: var(--muted); padding: 2px 6px; font-size: 16px; line-height: 1; }
.label .rm:hover { color: var(--danger); }
.head .label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; }

.cells { display: flex; }
.cell {
  position: relative;
  flex: 0 0 var(--cell-w);
  width: var(--cell-w);
  margin: 2px 1px;
  background: #2b313b;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  touch-action: none;
}
.cell.beat { margin-left: 5px; }
.cell.bar { margin-left: 12px; }
.cell:first-child { margin-left: 4px; }
.cell:hover { background: #38404c; }
.cell .fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 0;
  background: var(--hit);
  pointer-events: none;
}
.cell.on { background: color-mix(in srgb, var(--hit) 22%, #2b313b); }

.tick {
  flex: 0 0 var(--cell-w);
  width: var(--cell-w);
  margin: 0 1px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.tick.beat { margin-left: 5px; }
.tick.bar { margin-left: 12px; color: var(--text); font-weight: 600; }
.tick:first-child { margin-left: 4px; }

.playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #fff;
  opacity: 0.85;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
  z-index: 2;
  pointer-events: none;
  display: none;
}

.addrow {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.hint { color: var(--muted); font-size: 12px; }

.swatches { display: flex; gap: 5px; padding: 4px 0; }
.swatch { width: 20px; height: 20px; padding: 0; border-radius: 50%; border: 2px solid transparent; }
.swatch.sel { border-color: #fff; }

/* --- song arrangement --- */
.songpanel { display: grid; gap: 12px; }
.song-head { display: flex; flex-wrap: wrap; gap: 12px 22px; align-items: flex-end; }
label.inline { display: grid; gap: 4px; color: var(--muted); font-size: 12px; }
label.inline input[type="text"] { width: 220px; }
label.inline input[type="number"] { width: 62px; }
.song-transport { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.song-transport .spacer { flex: 1; }
.check { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.check input { padding: 0; accent-color: var(--accent); }
button:disabled { opacity: 0.4; cursor: default; }

.arrangement {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  row-gap: 22px;
  min-height: 96px;
  padding: 24px 8px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.arr-empty { align-self: center; color: var(--muted); padding: 0 12px; }

.gap {
  flex: 0 0 14px;
  width: 14px;
  margin: 0 1px;
  border-radius: 4px;
  cursor: pointer;
  position: relative;
}
.gap:hover { background: var(--panel-2); }
/* The insert marker: a gold vertical line with an arrow at the top. */
.gap.active::after {
  content: "";
  position: absolute;
  left: 5px; right: 5px; top: 0; bottom: 0;
  background: var(--gold);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(245, 197, 66, 0.6);
}
.gap.active::before {
  content: "";
  position: absolute;
  left: 50%; top: -11px;
  transform: translateX(-50%);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 10px solid var(--gold);
  z-index: 1;
}
.gap.drop { background: var(--accent); }

.block {
  --bc: var(--c0);
  flex: 0 0 118px;
  width: 118px;
  height: 84px;
  position: relative;
  padding: 8px 10px 12px;
  background: color-mix(in srgb, var(--bc) 18%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--bc) 60%, var(--line));
  border-left: 5px solid var(--bc);
  border-radius: 7px;
  cursor: grab;
  user-select: none;
  overflow: hidden;
}
.block:hover { background: color-mix(in srgb, var(--bc) 28%, var(--panel)); }
.block.selected { outline: 2px solid #fff; outline-offset: 1px; }
.block.dragging { opacity: 0.4; }
.block.playing { box-shadow: 0 0 0 2px var(--ok); }
.block.drop-before { box-shadow: -6px 0 0 -1px var(--accent); }
.block.drop-after { box-shadow: 6px 0 0 -1px var(--accent); }
.b-num { font-size: 20px; font-weight: 700; line-height: 1; color: var(--bc); }
.b-name { margin-top: 4px; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.b-meta { color: var(--muted); font-size: 11px; margin-top: 2px; }
.b-rm {
  position: absolute; top: 3px; right: 3px;
  padding: 0 6px; line-height: 18px; font-size: 15px;
  background: none; border: 0; color: var(--muted); border-radius: 4px;
  opacity: 0;
}
.block:hover .b-rm, .block.selected .b-rm { opacity: 1; }
.b-rm:hover { color: var(--danger); background: rgba(0, 0, 0, 0.3); }
.b-prog { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: rgba(0, 0, 0, 0.3); }
.b-prog span { display: block; height: 100%; width: 0; background: var(--ok); }

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

/* --- navigation and the sound library page --- */
.nav { display: flex; gap: 4px; margin-left: 6px; }
.nav a { color: var(--muted); text-decoration: none; padding: 4px 11px; border-radius: 6px; }
.nav a:hover { color: var(--text); background: var(--panel-2); }
.nav a.cur { color: var(--text); background: var(--panel-2); outline: 1px solid var(--line); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
code { background: var(--panel-2); padding: 1px 6px; border-radius: 4px; }

.folder { display: flex; align-items: center; gap: 8px 18px; flex-wrap: wrap; }
.folder .check { margin-left: auto; }
.detail { display: grid; gap: 16px; }
.empty-detail { color: var(--muted); padding: 24px 4px; }
.d-head { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.d-head label { display: grid; gap: 4px; color: var(--muted); font-size: 12px; flex: 1; min-width: 220px; }
.d-head input { width: 100%; font-size: 16px; }
.d-actions { display: flex; gap: 6px; }
.d-audition, .d-choke { display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap; }
.d-choke .check { color: var(--text); }

.layers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.layer {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  display: grid;
  gap: 6px;
  align-content: start;
  min-height: 130px;
}
.layer h3 { margin: 0 0 2px; font-size: 13px; display: flex; justify-content: space-between; align-items: baseline; }
.layer h3 .muted { font-weight: 400; font-size: 11px; }
.layer select { width: 100%; min-width: 0; }
.rec { display: flex; align-items: center; gap: 6px; background: var(--panel); border-radius: 6px; padding: 3px 4px; }
.rec .fname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rec.missing .fname { color: var(--danger); }
.rec .tag { font-size: 11px; color: var(--danger); white-space: nowrap; }
.rec .play, .rec .rm { padding: 1px 8px; background: none; border: 0; line-height: 22px; }
.rec .play:hover { color: var(--ok); }
.rec .rm { color: var(--muted); font-size: 16px; }
.rec .rm:hover { color: var(--danger); }
@media (max-width: 1100px) { .layers { grid-template-columns: 1fr; } }
.list li .meta.warn { color: var(--danger); }