:root {
  --bg: #15171a; --panel: #1f2328; --edge: #2e343b; --text: #d9dee3; --dim: #8a939c;
  --accent: rgb(40,160,225); --bright: rgb(200,236,255); --on: #2fbf71; --warn: #d9534f; --w: 34px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.4 system-ui, sans-serif; }
header { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; padding: 10px 18px;
  background: #101215; border-bottom: 1px solid var(--edge); }
h1 { margin: 0; font-size: 22px; letter-spacing: 2px; color: var(--accent); }
h1 span { color: var(--dim); font-weight: 400; font-size: 14px; letter-spacing: 1px; }
h2 { margin: 0 0 8px; font-size: 12px; letter-spacing: 2px; color: var(--accent); }
h3 { margin: 14px 0 6px; font-size: 11px; letter-spacing: 1px; color: var(--dim); text-transform: uppercase; }
.conn { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
#status { color: var(--bright); } #status.bad { color: var(--warn); }
button, select, input[type=text], input[type=number], input:not([type]) {
  background: #2a2f36; color: var(--text); border: 1px solid #3a424b; border-radius: 4px; padding: 5px 9px; font: inherit; }
button { cursor: pointer; } button:hover { border-color: var(--accent); }
button:focus-visible, .knob:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.warn { border-color: var(--warn); color: #ffb4b0; }
main { display: grid; grid-template-columns: 300px 1fr; gap: 16px; padding: 16px; align-items: start; }
@media (max-width: 860px) { main { grid-template-columns: 1fr; } }
.stack { display: grid; gap: 16px; min-width: 0; }
.card, .section { background: var(--panel); border: 1px solid var(--edge); border-radius: 8px; padding: 12px 14px; }
.row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
#patch-name { width: 9ch; text-transform: uppercase; }
#program { width: 6ch; }
.file input { display: none; }
.file { display: inline-block; background: #2a2f36; border: 1px solid #3a424b; border-radius: 4px; padding: 5px 9px; cursor: pointer; }
.hint { color: var(--dim); font-size: 12px; margin: 8px 0 0; }
#panel { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.body { display: flex; flex-wrap: wrap; gap: 10px 8px; align-items: flex-start; }
.ctl { text-align: center; }
.knob { width: 70px; cursor: ns-resize; touch-action: none; user-select: none; border-radius: 6px; }
.knob svg { width: 60px; height: 60px; display: block; margin: 0 auto; }
.knob .track { fill: none; stroke: #343b43; stroke-width: 5; stroke-linecap: round; }
.knob .fill { fill: none; stroke: var(--accent); stroke-width: 5; stroke-linecap: round; }
.knob .cap { fill: #2c3138; stroke: #3d454e; }
.knob .tick { stroke: var(--bright); stroke-width: 3; stroke-linecap: round; }
.name { font-size: 10px; letter-spacing: 1px; color: var(--dim); }
.val { font-size: 12px; font-variant-numeric: tabular-nums; color: var(--bright); }
.select { min-width: 100px; }
.seg { display: inline-flex; border: 1px solid #3a424b; border-radius: 4px; overflow: hidden; margin-top: 2px; }
.seg button { border: 0; border-radius: 0; padding: 4px 7px; font-size: 11px; background: #262b31; }
.seg button + button { border-left: 1px solid #3a424b; }
.seg button.on { background: var(--accent); color: #0b0d10; }
.patches { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; max-height: 420px; overflow: auto; }
.patch { text-align: left; font-size: 12px; padding: 4px 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.patch small { color: var(--dim); margin-right: 5px; font-size: 10px; }
.patch.on { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 22%, #15171a); }
.lib-row { display: flex; gap: 4px; margin-bottom: 4px; } .lib-row button:first-child { flex: 1; text-align: left; }
.switches { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.toggle.on { background: var(--accent); color: #0b0d10; border-color: var(--accent); }
.slider { display: flex; align-items: center; gap: 10px; margin: 6px 0; }
.slider span { width: 90px; font-size: 11px; letter-spacing: 1px; color: var(--dim); }
.slider input { flex: 1; max-width: 420px; }
.slider.inline { margin: 0 0 0 12px; } .slider.inline input { width: 120px; flex: none; }
.oct { min-width: 3ch; text-align: center; font-weight: 600; }
.keys { position: relative; height: 120px; margin-top: 10px; width: calc(var(--whites, 15) * var(--w)); max-width: 100%; overflow: hidden; touch-action: none; user-select: none; }
.key { position: absolute; top: 0; cursor: pointer; }
.key.white { background: #e8e8e8; border: 1px solid #777; height: 120px; width: var(--w); border-radius: 0 0 4px 4px; z-index: 1;
  position: relative; display: inline-block; vertical-align: top; }
.key.black { background: #111; height: 72px; width: calc(var(--w) * 0.6); z-index: 2; border-radius: 0 0 3px 3px; }
.key.white.down { background: var(--bright); } .key.black.down { background: var(--accent); }
#monitor { margin: 0; font: 12px/1.4 ui-monospace, Consolas, monospace; color: var(--dim); min-height: 8em; white-space: pre; overflow: auto; }