:root{--bg:#07060b;--mag:#ff2bd6;--cy:#22f0ff;--lime:#b6ff2b;--txt:#e9e6ff;--pan:#110f1c}
*{box-sizing:border-box}
body{margin:0;background:radial-gradient(circle at 20% 0,#2a0636 0,transparent 40%),radial-gradient(circle at 90% 100%,#032a33 0,transparent 40%),repeating-linear-gradient(0deg,#0000 0 3px,#ffffff05 3px 4px),var(--bg);color:var(--txt);font-family:VT323,monospace;font-size:20px;min-height:100vh}
header{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:12px 18px;border-bottom:2px solid var(--mag)}
h1{font-family:'Press Start 2P';font-size:clamp(13px,2.4vw,24px);margin:0;position:relative;color:#fff;text-shadow:2px 0 var(--mag),-2px 0 var(--cy);animation:shim 2.5s infinite}
@keyframes shim{0%,90%,100%{text-shadow:2px 0 var(--mag),-2px 0 var(--cy)}93%{text-shadow:-5px 1px var(--mag),5px -1px var(--cy);transform:skewX(-6deg)}}
#tagline{color:var(--lime);flex:1;min-width:200px}
.transport{display:flex;gap:8px;align-items:center}
input,select{background:#000;color:var(--cy);border:1px solid var(--cy);font-family:inherit;font-size:18px;padding:2px 6px}
#bpm{width:64px}
.bevel{display:inline-block;background:#c0c0c0;color:#000;font-family:inherit;font-size:18px;padding:4px 10px;border:2px solid;border-color:#fff #404040 #404040 #fff;cursor:pointer;text-decoration:none;margin:3px 0}
.bevel:hover{animation:wob .3s}
.bevel:active{border-color:#404040 #fff #fff #404040}
.bevel.on{background:var(--mag);color:#fff}
.big{font-family:'Press Start 2P';font-size:12px;padding:8px 14px}
@keyframes wob{25%{transform:rotate(-2deg)}75%{transform:rotate(2deg)}}
main{display:grid;grid-template-columns:260px 1fr 220px;gap:12px;padding:12px}
.panel{background:var(--pan);border:2px solid #2d2650;padding:10px;display:flex;flex-direction:column;gap:6px}
h2{font-family:'Press Start 2P';font-size:11px;color:var(--mag);margin:6px 0}
.drop{border:2px dashed var(--cy);padding:16px;text-align:center;cursor:pointer;color:var(--cy)}
.drop.over{background:#22f0ff22}
video{width:100%;max-height:150px;background:#000}
.row{display:flex;align-items:center;gap:6px}.row input[type=range]{flex:1}
.status{color:#9a92c8;font-size:17px;margin:4px 0}
#center{display:flex;flex-direction:column;gap:8px;min-width:0}
#stage{background:#000;border:3px solid var(--cy);box-shadow:0 0 18px #22f0ff55;aspect-ratio:16/10;width:100%}
canvas{width:100%;height:100%;display:block}
.chips{display:flex;flex-wrap:wrap;gap:6px}
#controls{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px}
.chip{border:1px solid var(--lime);color:var(--lime);background:none;font-family:inherit;font-size:17px;padding:2px 8px;cursor:pointer}
.chip.on{background:var(--lime);color:#000}
.meter{display:flex;align-items:center;gap:8px}.meter div{flex:1;height:14px;border:1px solid var(--mag)}
.meter i{display:block;height:100%;width:0;background:repeating-linear-gradient(45deg,#7a4a1c 0 6px,#a8682a 6px 12px);transition:width .2s}
.hidden{display:none!important}
#seqWrap{padding:0 12px 12px}
.seqbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:6px}
#seq{overflow-x:auto;background:var(--pan);border:2px solid #2d2650}
.srow{display:flex}
.lab{width:42px;flex:none;font-size:15px;color:#9a92c8;padding-left:4px;line-height:16px;position:sticky;left:0;background:var(--pan)}
.cell{flex:1;min-width:20px;height:16px;border:1px solid #1f1a38;cursor:pointer}
.cell.blk{background:#0b0916}.cell.beat{border-left-color:#4a3f80}
.cell.off{opacity:.25;pointer-events:none}
.cell.on{background:var(--mag);box-shadow:0 0 6px var(--mag)}
.cell.cur{outline:1px solid var(--lime)}
#keys{display:flex;overflow-x:auto;margin-top:8px;height:70px}
.key{flex:1;min-width:24px;background:#eee;border:1px solid #000;cursor:pointer;color:#000;font-size:13px;display:flex;align-items:flex-end;justify-content:center}
.key.b{background:#111;color:#888}.key.hit{background:var(--cy)!important}
.hint{color:#6d659a}
footer{text-align:center;padding:14px;color:#6d659a}footer a{color:var(--mag)}
@media(max-width:900px){main{grid-template-columns:1fr}#center{order:-1}}