:root {
  color-scheme: dark;
  --bg: #090b11;
  --bg-2: #0e1219;
  --panel: #12161f;
  --panel-2: #161b26;
  --line: #222a39;
  --line-soft: #1a202c;
  --text: #d9e1ee;
  --dim: #7b8798;
  --dimmer: #4f5a6b;
  --accent: #46e0ff;
  --accent-2: #ff53c8;
  --accent-3: #9dfc5c;
  --accent-4: #ffc861;
  --danger: #ff6b6b;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --radius: 10px;
}

* { box-sizing: border-box; }

/* `display` rules on .gate and .drop-hint would otherwise beat the [hidden] default. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

#app {
  height: 100%;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 14px;
  background: linear-gradient(180deg, #131824, #0d1118);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 9px; }
.brand h1 {
  font-size: 14px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin: 0;
  font-weight: 600;
}
.logo {
  width: 18px; height: 18px; border-radius: 5px;
  background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  box-shadow: 0 0 14px rgba(70, 224, 255, 0.45);
}

.transport { display: flex; align-items: center; gap: 7px; }

button {
  font-family: inherit;
  font-size: 12px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 11px;
  cursor: pointer;
  transition: border-color .12s, background .12s, color .12s;
}
button:hover { border-color: #33405a; background: #1b2231; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

button.play {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(180deg, #1b2534, #131b27);
  border-color: #2b3a52;
  min-width: 92px;
}
button.play .tri {
  width: 0; height: 0;
  border-left: 9px solid var(--accent-3);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}
button.play.playing { border-color: var(--accent-3); box-shadow: 0 0 0 1px rgba(157,252,92,.25) inset; }
button.play.playing .tri {
  border: 0; width: 9px; height: 10px;
  background: linear-gradient(90deg, var(--accent-3) 0 3px, transparent 3px 6px, var(--accent-3) 6px 9px);
}
button.ghost { background: transparent; color: var(--dim); }

button.rec { display: inline-flex; align-items: center; gap: 7px; }
button.rec .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: #7a3440; box-shadow: inset 0 0 0 1px rgba(255, 107, 107, .5);
}
button.rec.armed { border-color: var(--danger); color: #ffd9d9; }
button.rec.armed .dot { background: var(--danger); animation: recpulse 1.4s ease-in-out infinite; }
@keyframes recpulse { 50% { opacity: .3; } }
@media (prefers-reduced-motion: reduce) { button.rec.armed .dot { animation: none; } }

.recbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 6px 14px; font-size: 11px; color: var(--dim);
  background: #140f14; border-bottom: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 107, 107, .16);
}
.recbar.armed { background: #1a1014; }
.rec-state { color: var(--danger); letter-spacing: .1em; text-transform: uppercase; font-size: 10px; }
.recbar.done .rec-state { color: var(--accent-3); }
.rec-time { color: var(--text); font-variant-numeric: tabular-nums; min-width: 38px; }
.rec-track {
  width: 120px; height: 4px; border-radius: 3px; background: #0a0d13; overflow: hidden; flex: none;
}
.rec-track i { display: block; height: 100%; width: 0; background: var(--danger); }
.recbar.done .rec-track i { background: var(--accent-3); }
.rec-size { color: var(--dimmer); font-variant-numeric: tabular-nums; }
.rec-field { display: flex; align-items: center; gap: 5px; }
.rec-field select {
  background: #0a0d13; color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; font-family: inherit; font-size: 10.5px; padding: 2px 4px;
}
.rec-note { color: var(--dimmer); margin-left: auto; }
.rec-note.error { color: #ffb4b4; }
.rec-note.ok { color: var(--accent-3); }

.readout {
  font-variant-numeric: tabular-nums;
  background: #080a0f;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 5px 10px;
  min-width: 62px;
  text-align: center;
  color: var(--accent);
  letter-spacing: .05em;
}

.tempo-group { display: flex; gap: 12px; align-items: center; }
.field { display: flex; align-items: center; gap: 6px; color: var(--dim); font-size: 11px; }
.field span { text-transform: uppercase; letter-spacing: .1em; }
.field input[type=number] {
  width: 62px; background: #080a0f; color: var(--text);
  border: 1px solid var(--line); border-radius: 7px; padding: 5px 7px; font-family: inherit;
}
.field input[type=range] { width: 88px; accent-color: var(--accent); }

.spacer { flex: 1 1 auto; }

.toggle { display: flex; align-items: center; gap: 5px; color: var(--dim); font-size: 11px; cursor: pointer; }
.toggle input { accent-color: var(--accent-3); }

.select {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 8px; font-family: inherit; font-size: 12px; max-width: 190px;
}

/* ------------------------------------------------------------- workspace */

.workspace {
  display: grid;
  /* Column sizes are overridden as unitless fr numbers by the splitters. */
  grid-template-columns:
    minmax(200px, var(--col-0, 0.95fr)) var(--gutter, 5px)
    minmax(240px, var(--col-1, 1.15fr)) var(--gutter, 5px)
    minmax(200px, var(--col-2, 0.95fr));
  gap: 1px;
  background: var(--line-soft);
  min-height: 0;
}

.splitter {
  background: var(--panel);
  position: relative;
  touch-action: none;
}
.splitter.vertical { cursor: col-resize; }
.splitter.horizontal { cursor: row-resize; height: 5px; flex: none; }
.splitter::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  background: var(--line);
  border-radius: 2px;
  transition: background .12s;
}
.splitter.vertical::after { width: 1px; height: 26px; }
.splitter.horizontal::after { width: 26px; height: 1px; }
.splitter:hover::after, .splitter.dragging::after { background: var(--accent); }
.splitter.dragging { background: #171d29; }
.splitter:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.pane {
  background: var(--bg-2); display: flex; flex-direction: column;
  min-height: 0; min-width: 0;
  /* Panes resize independently, so their own width — not the viewport's —
     decides what fits in the header. */
  container-type: inline-size;
}

.pane-head {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--panel);
  min-height: 38px;
  overflow: hidden;
}
.pane-head h2 {
  margin: 0; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim);
  font-weight: 600; white-space: nowrap;
}
.hint, .tip {
  color: var(--dimmer); font-size: 10.5px; margin-left: auto;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
@container (max-width: 620px) { .viz-tools .tip { display: none; } }
@container (max-width: 400px) { .code-pane .hint { display: none; } }
kbd {
  background: #0a0d13; border: 1px solid var(--line); border-radius: 4px;
  padding: 0 4px; font-size: 10px; color: var(--dim);
}

/* ---------------------------------------------------------------- editor */

.editor { position: relative; flex: 1 1 auto; min-height: 0; overflow: hidden; }
.editor .highlight, .editor textarea {
  margin: 0;
  padding: 12px 14px 60px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  tab-size: 2;
  white-space: pre;
  word-wrap: normal;
  border: 0;
  position: absolute;
  inset: 0;
  overflow: auto;
}
.editor .highlight { pointer-events: none; color: var(--text); }
.editor textarea {
  background: transparent;
  color: transparent;
  caret-color: var(--accent);
  resize: none;
  outline: none;
}
.editor textarea::selection { background: rgba(70, 224, 255, 0.24); }

.tok-key { color: var(--accent); }
.tok-fn { color: var(--accent-2); }
.tok-str { color: var(--accent-3); }
.tok-num { color: var(--accent-4); }
.tok-com { color: #4a5568; font-style: italic; }
.tok-punct { color: #6d7a8d; }

.status {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-top: 1px solid var(--line-soft);
  background: var(--panel); font-size: 11px; color: var(--dim);
}
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 8px currentColor; flex: none; }
.status.error .dot { background: var(--danger); }
.status.error .msg { color: #ffb4b4; }
.status.pending .dot { background: var(--accent-4); }
.status .msg { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.console {
  max-height: 110px; overflow: auto; padding: 8px 12px;
  border-top: 1px solid var(--line-soft); background: #070910; color: var(--dim); font-size: 11px;
}
.console div { padding: 1px 0; }

/* -------------------------------------------------------------- analyzer */

.viz-tools { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.chip {
  padding: 3px 8px; font-size: 10.5px; border-radius: 999px;
  background: #0b0f16; border: 1px solid var(--line); color: var(--dim);
}
.chip.on { color: var(--accent-3); border-color: rgba(157,252,92,.4); }

.analyzer-wrap { position: relative; flex: 1 1 auto; min-height: 220px; }
#analyzer { display: block; width: 100%; height: 100%; touch-action: none; cursor: crosshair; }

.band-readout {
  position: absolute; pointer-events: none;
  background: rgba(8, 11, 17, .94); border: 1px solid var(--line);
  border-radius: 7px; padding: 6px 9px; font-size: 11px; color: var(--text);
  box-shadow: 0 6px 20px rgba(0,0,0,.55); white-space: nowrap;
}
.band-readout b { color: var(--accent); font-weight: 600; }

.strip {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 1px;
  background: var(--line-soft); height: var(--strip-h, 116px); flex: none;
}
.strip canvas { display: block; width: 100%; height: 100%; background: var(--bg-2); }

/* ------------------------------------------------------------------ rack */

.tabs { gap: 2px; padding: 6px 8px; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--dim);
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 5px 9px;
}
.tab.active { color: var(--text); background: var(--panel-2); border-color: var(--line); }

.keys-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 5px 12px; border-bottom: 1px solid var(--line-soft);
  background: #0f131c; font-size: 10.5px; color: var(--dim); flex: none;
}
.keys-bar.active { color: var(--accent-3); box-shadow: inset 0 -1px 0 rgba(157, 252, 92, .35); }
.kb-icon { font-size: 12px; filter: grayscale(1) brightness(1.6); }
.kb-field { display: flex; align-items: center; gap: 5px; }
.kb-field select {
  background: #0a0d13; color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; font-family: inherit; font-size: 10.5px; padding: 2px 4px; max-width: 130px;
}
.kb-field b { color: var(--text); min-width: 10px; text-align: center; font-variant-numeric: tabular-nums; }
.kb-range { margin-left: auto; color: var(--dimmer); font-variant-numeric: tabular-nums; }
.keys-bar.active .kb-range { color: var(--accent-3); }

.rack { flex: 1 1 auto; overflow: auto; padding: 0 12px 26px; overscroll-behavior: contain; }
.rack > :first-child { margin-top: 10px; }
.rack.drag-scroll { cursor: grab; }
.rack.drag-scroll.dragging { cursor: grabbing; user-select: none; }

.device {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  margin-bottom: 10px;
}
.device > header {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-bottom: 1px solid var(--line-soft);
  background: #141924;
  border-radius: calc(var(--radius) - 1px) calc(var(--radius) - 1px) 0 0;
  /* Keep the card's name in view while its controls scroll past. */
  position: sticky; top: -1px; z-index: 3;
}
.device > header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--line-soft);
}
.device-body { border-radius: 0 0 calc(var(--radius) - 1px) calc(var(--radius) - 1px); }
.device > header h3 { margin: 0; font-size: 12px; font-weight: 600; letter-spacing: .04em; }
.device .kind { font-size: 10px; color: var(--dimmer); text-transform: uppercase; letter-spacing: .12em; }
.device .meter {
  margin-left: auto; width: 54px; height: 5px; border-radius: 3px; background: #0a0d13; overflow: hidden; flex: none;
}
.device .meter i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-3), var(--accent-4)); }
.device .mini { font-size: 10px; color: var(--accent); min-width: 54px; text-align: right; }

.device-body { padding: 9px 10px 11px; }
.group-title {
  font-size: 9.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--dimmer);
  margin: 8px 0 6px; display: flex; align-items: center; gap: 7px;
}
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--line-soft); }
.knob-row { display: flex; flex-wrap: wrap; gap: 4px 2px; }

/* ----------------------------------------------------------------- knobs */

.knob {
  width: 62px; padding: 3px 0 2px; text-align: center; position: relative;
  cursor: ns-resize; border-radius: 8px; user-select: none; touch-action: none;
}
.knob:hover { background: rgba(255,255,255,.028); }
.knob.modded .kname { color: var(--accent-2); }
.knob.highlight { background: rgba(255, 83, 200, .14); box-shadow: 0 0 0 1px rgba(255,83,200,.35) inset; }
.knob svg { display: block; margin: 0 auto; }
.kname {
  font-size: 9.5px; color: var(--dim); text-transform: uppercase; letter-spacing: .05em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kval { font-size: 9.5px; color: var(--text); font-variant-numeric: tabular-nums; }
.knob .assign {
  position: absolute; top: 2px; right: 6px; width: 11px; height: 11px; border-radius: 50%;
  border: 1px solid var(--line); background: #0a0d13; color: var(--dimmer);
  font-size: 8px; line-height: 9px; padding: 0; opacity: 0; cursor: pointer;
}
.knob:hover .assign, .knob.modded .assign { opacity: 1; }
.knob.modded .assign { border-color: var(--accent-2); color: var(--accent-2); }

.selector { width: 88px; padding: 2px 3px; }
.selector select {
  width: 100%; background: #0a0d13; color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; font-family: inherit; font-size: 10.5px; padding: 3px 4px;
}

.row-buttons { display: flex; gap: 5px; margin-left: auto; }
.tiny {
  font-size: 9.5px; padding: 2px 7px; border-radius: 6px; background: #0a0d13;
  border: 1px solid var(--line); color: var(--dim);
}
.tiny.on { color: var(--bg); background: var(--accent-3); border-color: var(--accent-3); }
.tiny.solo.on { background: var(--accent-4); }

/* ------------------------------------------------------------ modulation */

.mod-source {
  border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 8px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}
.mod-source > header {
  display: flex; align-items: center; gap: 8px; padding: 6px 9px;
  background: #141924; border-radius: calc(var(--radius) - 1px) calc(var(--radius) - 1px) 0 0;
  position: sticky; top: -1px; z-index: 3;
}
.mod-source h4 { margin: 0; font-size: 11.5px; color: var(--accent-2); }
.mod-source .desc { font-size: 10px; color: var(--dimmer); }
.mod-source canvas { display: block; width: 100%; height: 34px; background: #080b11; }
.routes { padding: 4px 9px 8px; display: flex; flex-direction: column; gap: 4px; }
.route {
  display: flex; align-items: center; gap: 7px; font-size: 10.5px; color: var(--dim);
  background: #0b0f16; border: 1px solid var(--line-soft); border-radius: 7px; padding: 4px 7px;
}
.route .target { color: var(--text); cursor: pointer; }
.route .target:hover { color: var(--accent); text-decoration: underline; }
.route input[type=range] { flex: 1; accent-color: var(--accent-2); height: 3px; }
.route .depth { width: 38px; text-align: right; font-variant-numeric: tabular-nums; }
.route .bar { width: 46px; height: 4px; background: #05070b; border-radius: 3px; overflow: hidden; position: relative; flex: none; }
.route .bar i { position: absolute; top: 0; bottom: 0; background: var(--accent-2); }
.route button { padding: 1px 5px; font-size: 10px; border-radius: 5px; }

.add-source { display: flex; gap: 6px; flex-wrap: wrap; margin: 4px 0 12px; }

.empty { color: var(--dimmer); font-size: 11.5px; padding: 14px 2px; line-height: 1.7; }

/* ------------------------------------------------------------- mod menu */

.mod-menu {
  position: fixed; z-index: 40; min-width: 178px;
  background: #0d1119; border: 1px solid var(--line); border-radius: 9px;
  box-shadow: 0 16px 42px rgba(0,0,0,.6); padding: 5px; font-size: 11.5px;
}
.mod-menu .head { color: var(--dimmer); font-size: 10px; padding: 4px 8px; text-transform: uppercase; letter-spacing: .1em; }
.mod-menu button {
  display: block; width: 100%; text-align: left; background: transparent;
  border: 0; border-radius: 6px; padding: 5px 8px; color: var(--text);
}
.mod-menu button:hover { background: #1a2130; }
.mod-menu hr { border: 0; border-top: 1px solid var(--line-soft); margin: 4px 2px; }

/* ----------------------------------------------------------- cheatsheet */

.help { font-size: 11.5px; line-height: 1.75; color: var(--dim); }
.help h3 { color: var(--text); font-size: 12px; margin: 14px 0 5px; letter-spacing: .04em; }
.help h3:first-child { margin-top: 2px; }
.help code { color: var(--accent-3); background: #0b0f16; padding: 1px 4px; border-radius: 4px; }
.help table { width: 100%; border-collapse: collapse; }
.help td { padding: 2px 6px 2px 0; vertical-align: top; }
.help td:first-child { white-space: nowrap; color: var(--accent); }
.help .samples { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }

/* ------------------------------------------------------------------ gate */

.gate {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center;
  /* Translucent so the tool itself is the first thing you see. */
  background: radial-gradient(900px 520px at 50% 0%, rgba(19, 26, 39, .92), rgba(6, 8, 13, .94) 70%);
  backdrop-filter: blur(2px);
}
.gate-card { text-align: center; max-width: 380px; padding: 30px; }
.gate-card h2 { font-size: 26px; letter-spacing: .3em; text-transform: uppercase; margin: 0 0 10px; }
.gate-card p { color: var(--dim); line-height: 1.7; }
.gate-card .fine { font-size: 10.5px; color: var(--dimmer); margin-top: 14px; }
#gateBtn {
  margin-top: 16px; padding: 11px 26px; font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
  background: linear-gradient(180deg, #1d2a3c, #131c28); border-color: #2f4257; color: var(--accent);
}
#gateBtn:hover { border-color: var(--accent); box-shadow: 0 0 22px rgba(70,224,255,.22); }

.drop-hint {
  position: fixed; inset: 0; z-index: 55; display: grid; place-items: center;
  background: rgba(6,8,13,.82); color: var(--accent); font-size: 15px; letter-spacing: .1em;
  border: 2px dashed rgba(70,224,255,.4);
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 1180px) {
  /* Below this width the panes stack, and the splitters have nothing to split. */
  .workspace { grid-template-columns: 1fr 1fr; grid-template-rows: minmax(260px, 1fr) minmax(260px, 1fr); }
  .splitter.vertical { display: none; }
  .code-pane { grid-column: 1; grid-row: 1; }
  .viz-pane { grid-column: 2; grid-row: 1; }
  .rack-pane { grid-column: 1 / -1; grid-row: 2; }
}
@media (max-width: 760px) {
  /* Stack the panes and give each a real height: an auto grid row would let
     the flex children under the analyzer collapse. */
  .workspace { grid-template-columns: 1fr; grid-template-rows: auto auto auto; overflow: auto; }
  .code-pane, .viz-pane, .rack-pane { grid-column: 1; grid-row: auto; }
  .code-pane { height: 320px; }
  .viz-pane { height: 460px; }
  .rack-pane { height: 520px; }
  .analyzer-wrap { min-height: 260px; }
  .strip { height: 116px; }
  .splitter.horizontal { display: none; }
  .topbar { gap: 8px; padding: 8px 10px; }
  .tempo-group { order: 5; }
}