:root {
  --bg: #1b1c1e;
  --rack: #2a2b2e;
  --ink: #e8e6df;
  --dim: #8c8a84;
  --led: #ff4a1c;
  --led-off: #4a1d12;
  --accent: #ff9a2e;
  --silver: #c9c9c2;
  --silver-ink: #222;
  --cream: #ded3bb;
  --grey909: #a9aaa6;
  --orange: #e8641c;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 12px/1.3 "Segoe UI", system-ui, -apple-system, sans-serif;
}
button, select, input { font: inherit; }
button {
  background: #3a3b3f; color: var(--ink); border: 1px solid #55565b; border-radius: 3px;
  padding: 4px 10px; cursor: pointer;
}
button:hover { background: #47484d; }
button.on { background: var(--orange); border-color: var(--orange); color: #fff; }
.dim { color: var(--dim); }

#toolbar {
  position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  padding: 6px 16px; background: #111214; border-bottom: 1px solid #333;
}
.menubar { display: flex; gap: 0; margin-right: 8px; }
.menu-title { background: transparent; border: 0; padding: 4px 10px; color: var(--ink); }
.menu-title:hover, .menu-title.open { background: #3a3b3f; }
.menu-panel {
  position: fixed; z-index: 50; min-width: 260px; background: #202124; border: 1px solid #444;
  box-shadow: 0 6px 18px rgba(0,0,0,0.5); padding: 4px 0; display: flex; flex-direction: column;
}
.menu-panel hr { border: 0; border-top: 1px solid #3a3b3f; margin: 4px 0; }
.menu-item {
  display: grid; grid-template-columns: 18px 1fr auto; gap: 6px; text-align: left; background: transparent;
  border: 0; border-radius: 0; padding: 4px 12px 4px 6px; color: var(--ink);
}
.menu-item:hover:not(:disabled) { background: var(--orange); color: #fff; }
.menu-item:disabled { color: #666; cursor: default; }
.mi-key { color: var(--dim); font-size: 11px; }
.menu-item:hover:not(:disabled) .mi-key { color: #fff; }
.dlg-overlay { position: fixed; inset: 0; z-index: 60; background: rgba(0,0,0,0.55); display: grid; place-items: center; }
.dlg { background: #232427; border: 1px solid #555; border-radius: 4px; padding: 16px 18px; min-width: 300px; max-width: 560px; }
.dlg h3 { margin: 0 0 10px; font-size: 14px; }
.dlg-buttons { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.dlg label { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.dlg input[type=text], .dlg input[type=number], .dlg textarea, .dlg select {
  background: #0a0a0a; color: var(--ink); border: 1px solid #444; padding: 3px 5px;
}
.dlg pre { white-space: pre-wrap; background: #0a0a0a; padding: 8px; max-height: 260px; overflow: auto; }
#toolbar select { background: #0a0a0a; color: var(--ink); border: 1px solid #444; padding: 3px; }
#song-select { max-width: 280px; }
#skin-wrap { display: flex; justify-content: center; }
#skin { position: relative; }
.sk-window { position: absolute; left: 0; top: 0; transform-origin: 0 0; image-rendering: pixelated; background: #000; }
.sk-view { position: absolute; background-repeat: no-repeat; }
.sk { position: absolute; background-repeat: no-repeat; touch-action: none; user-select: none; }
.sk-about { position: absolute; left: 72px; top: 83px; width: 480px; height: 344px; z-index: 3; cursor: pointer; box-shadow: 0 0 0 9999px rgba(0,0,0,0.5); }
.power-box img { display: block; margin: 0 auto 16px; max-width: 100%; height: auto; }
.power-box { max-width: 520px !important; }

#power {
  position: fixed; inset: 0; z-index: 10; display: grid; place-items: center;
  background: rgba(10, 10, 12, 0.92);
}
#power[hidden] { display: none; }
.power-box { text-align: center; max-width: 360px; padding: 24px; }
.power-box h1 { font-size: 48px; letter-spacing: 4px; margin: 0 0 8px; color: var(--accent); }
#power-on { font-size: 16px; padding: 10px 28px; background: var(--orange); border: 0; }

#transport {
  position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  padding: 8px 16px; background: #111214; border-bottom: 1px solid #333;
}
.brand { font-weight: 700; letter-spacing: 3px; color: var(--accent); font-size: 18px; margin-right: 6px; }
.lcd {
  font: 18px/1 "Consolas", monospace; color: #ff6a3a; background: #0a0a0a; padding: 6px 10px;
  border: 1px solid #333; border-radius: 3px; min-width: 92px; text-align: right;
}
.field { display: inline-flex; gap: 6px; align-items: center; }
.field input[type=number] { width: 70px; background: #0a0a0a; color: var(--ink); border: 1px solid #444; padding: 3px 5px; }
#song-select { max-width: 260px; background: #0a0a0a; color: var(--ink); border: 1px solid #444; padding: 3px; }

main { padding: 12px 16px 32px; display: grid; gap: 12px; }
#editor { display: grid; gap: 12px; }
#editor[hidden] { display: none; }
.rack-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 12px; }
@media (max-width: 1000px) { .rack-row { grid-template-columns: 1fr; } }

.panel { background: var(--rack); border: 1px solid #3c3d41; border-radius: 4px; padding: 10px 12px; overflow-x: auto; }
.panel h2 { margin: 0 0 8px; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; display: flex; gap: 10px; align-items: center; }
.panel h2 .sub { font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--dim); }
.tb303 { background: var(--silver); color: var(--silver-ink); }
.tr808 { background: var(--cream); color: #2a241c; }
.tr909 { background: var(--grey909); color: #1d1d1d; }
.tb303 .dim, .tr808 .dim, .tr909 .dim { color: #5a5850; }

.row { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: flex-end; }
.group { display: flex; flex-direction: column; gap: 4px; padding: 6px 8px; border-radius: 3px; background: rgba(0,0,0,0.12); }
.group > .label { font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
.group .row { gap: 6px 8px; }

.knob { display: flex; flex-direction: column; align-items: center; width: 44px; user-select: none; touch-action: none; }
.knob svg { width: 34px; height: 34px; cursor: ns-resize; }
.knob .k-body { fill: #2b2b2b; stroke: #111; }
.tb303 .knob .k-body, .tr808 .knob .k-body, .tr909 .knob .k-body { fill: #1f1f1f; }
.knob .k-track { fill: none; stroke: rgba(128,128,128,0.35); stroke-width: 3; }
.knob .k-val { fill: none; stroke: var(--orange); stroke-width: 3; }
.knob .k-ptr { stroke: #fff; stroke-width: 2; stroke-linecap: round; }
.knob .k-label { font-size: 9px; text-transform: uppercase; letter-spacing: 0.5px; text-align: center; white-space: nowrap; }
.knob .k-num { font: 9px monospace; opacity: 0.7; }

.toggle { display: inline-flex; flex-direction: column; align-items: center; gap: 3px; font-size: 9px; text-transform: uppercase; cursor: pointer; user-select: none; }
.toggle .led { width: 12px; height: 12px; border-radius: 50%; background: var(--led-off); border: 1px solid #000; }
.toggle.on .led { background: var(--led); box-shadow: 0 0 6px var(--led); }
select.mini { font-size: 11px; padding: 1px; background: #111; color: var(--ink); border: 1px solid #555; }

.fader { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 56px; }
.fader input[type=range] { writing-mode: vertical-lr; direction: rtl; height: 90px; width: 22px; accent-color: var(--orange); }
.fader .k-label { font-size: 10px; font-weight: 700; }

.patsel { display: grid; grid-template-columns: repeat(8, 22px); gap: 2px; }
.patsel button { padding: 2px 0; font-size: 10px; background: #333; color: #ccc; border-color: #222; }
.patsel button.cur { background: var(--orange); color: #fff; }
.patsel button.pending { outline: 2px solid var(--accent); }
.patsel .bank { grid-column: span 2; }

.grid { display: grid; gap: 2px; margin-top: 8px; font-size: 10px; align-items: center; }
.grid .rl { text-align: right; padding-right: 6px; font-weight: 700; white-space: nowrap; }
.grid .cell { height: 14px; border-radius: 2px; background: rgba(0,0,0,0.18); cursor: pointer; border: 1px solid rgba(0,0,0,0.25); }
.grid .cell.beat { background: rgba(0,0,0,0.28); }
.grid .cell.v1 { background: #f0a060; }
.grid .cell.v2 { background: var(--orange); }
.grid .cell.v3 { background: #f0a060; box-shadow: inset 0 0 0 2px #222; }
.grid .cell.v4 { background: var(--orange); box-shadow: inset 0 0 0 2px #222; }
.grid .cell.rest { background: rgba(232,100,28,0.25); }
.grid .cell.off { opacity: 0.35; cursor: default; }
.grid .cell.play { outline: 2px solid #fff; outline-offset: -1px; }
.grid .stepno { text-align: center; opacity: 0.6; }
.grid .sep { height: 4px; }