:root {
  --bg: #0d1117;
  --panel: #131a23;
  --panel2: #18212c;
  --line: #253040;
  --text: #c9d1d9;
  --dim: #6e7d8f;
  --accent: #ffa657;
  --accent2: #79c0ff;
  --rec: #ff6b81;
  --mono: "DejaVu Sans Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.35 system-ui, sans-serif;
}

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

button, input, select {
  font: inherit;
  color: var(--text);
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 4px;
}

button {
  padding: 3px 9px;
  cursor: pointer;
}

button:hover { border-color: var(--accent2); }
button.on { background: #233650; border-color: var(--accent2); color: #fff; }
#btn-edit.on { background: #4a1f2a; border-color: var(--rec); color: #fff; }
button:disabled { opacity: 0.4; cursor: default; }

input[type="text"], input[type="number"], select { padding: 2px 5px; min-width: 0; }
input[type="number"] { width: 5em; font-family: var(--mono); }
input[type="range"] { accent-color: var(--accent); }

#top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
  padding: 6px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.brand {
  font: bold 18px var(--mono);
  letter-spacing: 2px;
  color: var(--accent);
}

.brand span { color: var(--accent2); }

.group { display: flex; gap: 4px; align-items: center; }
.readout { gap: 12px; font-family: var(--mono); }
.readout b { color: var(--accent); }
#fx-help { font: 12px var(--mono); color: var(--accent); }
#status { margin-left: auto; color: var(--dim); font-size: 12px; }

main {
  display: grid;
  grid-template-columns: 220px 1fr 290px;
  min-height: 0;
}

aside {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  overflow: hidden;
}

#left { border-right: 1px solid var(--line); }
#right { border-left: 1px solid var(--line); }

section {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 0;
}

section.grow { flex: 1; overflow-y: auto; overflow-x: hidden; }

h2 {
  margin: 0 0 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--dim);
}

h2 small { text-transform: none; letter-spacing: 0; }

h3 { margin: 0; font-size: 13px; color: var(--accent2); }

.row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  gap: 6px;
}

.row > span { color: var(--dim); }
.row input[type="range"], .row input[type="text"], .row select { min-width: 0; width: 100%; }
.row output { font-family: var(--mono); min-width: 3.5em; text-align: right; color: var(--accent); }

.buttons { display: flex; gap: 4px; flex-wrap: wrap; }

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  overflow-y: auto;
  min-height: 60px;
  max-height: 220px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
}

#left .list { flex: 1; max-height: none; }

.list li { padding: 1px 8px; cursor: pointer; white-space: nowrap; }
.list li:hover { background: var(--panel2); }
.list li.current { background: #233650; color: #fff; }
.list li.playing { box-shadow: inset 3px 0 var(--accent); }
.list li.restart::after { content: " ↺"; color: var(--dim); }

#center { position: relative; min-width: 0; min-height: 0; }
#pattern { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
body.editing #center { box-shadow: inset 0 0 0 2px var(--rec); }

fieldset {
  border: 1px solid var(--line);
  border-radius: 4px;
  margin: 4px 0 0;
  padding: 4px 8px 6px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

legend { color: var(--dim); font-size: 11px; padding: 0 4px; }

.wave-row { display: flex; gap: 3px; align-items: center; font-family: var(--mono); }
.wave-row .idx { color: var(--dim); width: 2em; }
.wave-row button { padding: 1px 6px; font-family: var(--mono); }
.wave-row input[type="number"] { width: 4.2em; }
.wave-row .abs { color: var(--dim); font-size: 11px; display: flex; align-items: center; }
.wave-tools { display: flex; gap: 8px; align-items: center; }
.wave-tools .row { grid-template-columns: auto auto; }

.hint { color: var(--dim); }

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 4px 10px;
  background: var(--panel);
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 12px;
}

kbd {
  font: 11px var(--mono);
  padding: 0 4px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--text);
}

dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  min-width: 460px;
}

dialog::backdrop { background: rgba(0, 0, 0, 0.6); }

#songs-list { list-style: none; padding: 0; max-height: 60vh; overflow: auto; }
#songs-list li {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 8px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid var(--line);
}
#songs-list li.current span { color: var(--accent); }
#songs-list small { color: var(--dim); }

.kind { font-size: 10px; padding: 0 3px; border-radius: 3px; color: #0d1117; background: #8b949e; }
.kind-sid { background: var(--accent2); }
.kind-sampler { background: #d2a8ff; }

.wave-view { width: 100%; height: 90px; display: block; background: var(--bg); border: 1px solid var(--line); border-radius: 4px; }
.sample-tools { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.sample-tools small { color: var(--dim); }

#track-mix { display: flex; flex-direction: column; gap: 4px; }

#mixer {
  position: fixed;
  inset: auto 0 0 auto;
  margin: 0;
  width: min(640px, 100vw);
  max-height: 80vh;
  overflow: auto;
  padding: 0;
  z-index: 10;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.6);
}
#mixer header { display: flex; justify-content: space-between; align-items: center; padding: 6px 10px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--panel); }
#mixer header h2 { margin: 0; }
.mixer-body { display: grid; grid-template-columns: 1fr 1fr; }
.mixer-body section { border-bottom: 0; }
.mixer-body section + section { border-left: 1px solid var(--line); }
.fx-slot legend { display: flex; gap: 6px; align-items: center; }
.fx-slot legend button { padding: 0 6px; }
.fx-slot.bypassed { opacity: 0.5; }

body.midi-learn .mappable { outline: 1px dashed #d2a8ff; outline-offset: 1px; cursor: crosshair; }
body.midi-learn .midi-pending { outline: 2px solid #d2a8ff; }
#btn-map.on { background: #3b2a55; border-color: #d2a8ff; }
#midi-dialog { min-width: 520px; }
#midi-dialog table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
#midi-dialog td { padding: 2px 6px; border-bottom: 1px solid var(--line); }
#midi-dialog .row { grid-template-columns: 140px 1fr; }

#btn-panic { border-color: #8b3a3a; color: #ffb4b4; }
#btn-panic:hover { background: #4a1f1f; }

.preset-bar { display: flex; flex-direction: column; gap: 3px; margin: 2px 0 4px; }
.preset-row { display: flex; gap: 3px; flex-wrap: wrap; }
.preset-row select { flex: 1 1 100%; min-width: 0; }
.preset-row button { flex: 1; }
.preset-row button, .preset-name button { padding: 1px 6px; font-size: 12px; }
.preset-name { display: flex; gap: 3px; }
.preset-name input { flex: 1; min-width: 0; }
.preset-name[hidden] { display: none; }
#demos-list { list-style: none; padding: 0; }
#demos-list li { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; padding: 4px 0; border-bottom: 1px solid var(--line); }
#demos-list small { color: var(--dim); }