:root{
  --bg:#110c2c; --surface:#1b1545; --surface-2:#231b58; --ink:#f1edff; --muted:#a69fd8; --edge:#2f2768;
  --stage:#0d0924; --stage-ink:#efeaff; --dim:rgba(239,234,255,.55);
  --acc:#ff3d7f; --acc-ink:#fff; --danger:#ff6b6b;
  --display:"Unbounded","Arial Black",system-ui,sans-serif;
  --body:"Onest","Segoe UI",system-ui,-apple-system,sans-serif;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font:15px/1.45 var(--body);-webkit-tap-highlight-color:transparent}
button,select,input{font:inherit;color:inherit}
button{cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.app{max-width:820px;margin:0 auto;padding:12px 16px 28px;display:flex;flex-direction:column;gap:12px}
.top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.logo{font:900 20px/1 var(--display);letter-spacing:-.02em;margin:0;white-space:nowrap}
.tname{flex:1 1 160px;min-width:0;background:transparent;border:1.5px solid transparent;border-radius:10px;padding:6px 10px;font-weight:700;font-size:16px}
.tname:hover,.tname:focus{border-color:var(--edge);outline:none}
.tools{display:flex;gap:6px;align-items:center}
.ic,.pill{background:var(--surface);border:1px solid var(--edge);border-radius:999px;display:inline-grid;place-items:center}
.ic{width:36px;height:36px}
.ic:disabled{opacity:.35;cursor:default}
.pill{padding:7px 14px;font-weight:700;font-size:14px}
.ic:hover:not(:disabled),.pill:hover{border-color:var(--muted)}

.transport{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.play{width:52px;height:52px;border-radius:50%;border:0;background:var(--ink);color:var(--bg);display:grid;place-items:center;flex:0 0 auto}
.play svg{width:20px;height:20px;fill:currentColor;stroke:none}
.bpm{flex:1 1 180px;display:flex;flex-direction:column;font-size:13px;color:var(--muted);min-width:150px}
.bpm.swing{flex:0 1 150px;min-width:120px}
.bpm b{font:700 16px var(--display);color:var(--ink)}
input[type=range]{width:100%;accent-color:var(--acc);height:26px}
.sel{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
select{background:var(--surface);border:1px solid var(--edge);border-radius:10px;padding:6px 8px}
.seg{display:flex;align-items:center;gap:4px}
.seglbl{font-size:13px;color:var(--muted);margin-right:4px}
.chip{background:var(--surface);border:1px solid var(--edge);border-radius:999px;padding:6px 11px;font-weight:700;font-size:13px}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.libtabs{gap:6px;margin:6px 0 2px}
.btn.star{min-width:36px;padding-left:8px;padding-right:8px}.libitem .btn.star.on{color:#ffd166;border-color:rgba(255,209,102,.6)}
.card p.empty{color:var(--muted);margin:10px 2px}

.lanes{display:flex;flex-wrap:wrap;gap:8px}
.lane{display:flex;align-items:center;gap:6px;background:var(--surface);border:1.5px solid var(--edge);border-radius:14px;padding:4px 6px 4px 4px}
.lane.on{border-color:var(--c);box-shadow:inset 0 0 0 1px var(--c)}
.lane .nm{background:none;border:0;display:flex;align-items:center;gap:7px;padding:6px 6px;font:700 13px var(--display)}
.lane .nm::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--c);box-shadow:0 0 8px var(--c)}
.lane.muted .nm{opacity:.45}
.lane .vol{width:78px;height:22px;accent-color:var(--c)}
.lane .more{background:none;border:0;width:28px;height:28px;border-radius:50%;font-weight:900}
.lane .more:hover{background:rgba(255,255,255,.08)}
.lane .rng{font-size:11px;color:var(--muted)}
.addlane{background:transparent;border:1.5px dashed var(--edge);border-radius:14px;padding:8px 14px;font-weight:700}
.addlane:hover{border-color:var(--muted)}

.stage{background:var(--stage);border-radius:20px;padding:10px;display:flex;flex-direction:column;gap:8px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05)}
.viewbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-height:34px}
.grow{flex:1}
.barlbl{font:700 13px var(--display);min-width:70px;text-align:center}
.barkey select{padding:4px 6px}
.barkey.on select{border-color:#ffd166;color:#ffd166}
.sbtn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:var(--stage-ink);border-radius:999px;padding:6px 12px;font-weight:700;font-size:13px}
.sbtn:hover:not(:disabled){background:rgba(255,255,255,.13)}
.sbtn:disabled{opacity:.35;cursor:default}
.shp{display:inline-flex;flex-direction:column;align-items:center;gap:2px;padding:4px 9px 3px;line-height:0}
.shp svg{width:24px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.shp .lv{display:flex;gap:3px}.shp .lv i{width:4px;height:4px;border-radius:50%;background:currentColor;opacity:.22}.shp .lv i.on{opacity:1}
.shp[aria-pressed=true]{background:rgba(255,61,127,.22);border-color:rgba(255,61,127,.6)}
.sbtn[aria-pressed="true"]{border-color:var(--acc);box-shadow:inset 0 0 0 1px var(--acc)}
.sbtn.danger{color:#ffb0b0}
.ic2{padding:6px 9px}
#ring{width:100%;height:min(92vw,600px);display:block;touch-action:none;cursor:pointer}
#ring.grabbing{cursor:grabbing}
.ringwrap{position:relative}
.ringwrap.dropping{outline:2px dashed var(--accent,#ff3d7f);outline-offset:-4px;border-radius:16px}
.ringwrap.dropping::after{content:attr(data-drop);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(13,9,36,.92);border:1px solid #ff3d7f;border-radius:14px;padding:12px 18px;font-weight:700;pointer-events:none;z-index:5;text-align:center;max-width:80%}
.edtools{position:absolute;top:4px;left:4px;display:flex;gap:8px;z-index:2}
.edtools .ic{width:42px;height:42px;background:rgba(20,15,50,.82)}
.edtools .ic svg{width:20px;height:20px}
.notebar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:rgba(255,255,255,.04);border-radius:14px;padding:8px}
.nname{font:700 15px var(--display);min-width:48px}
.grp{display:flex;align-items:center;gap:4px}
.grp .lbl{font-size:12px;color:var(--dim)}
.grp output{min-width:44px;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}
.hint{margin:0;font-size:13px;color:var(--dim);min-height:1.4em}
.foot{margin:0;text-align:center;font-size:12px;color:var(--muted)}
.footlinks{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 22px;font-size:13px;padding-bottom:10px}
.footlinks a{color:var(--muted);text-decoration:underline;text-decoration-color:rgba(239,234,255,.3);text-underline-offset:3px}
.footlinks a:hover{color:var(--ink,#fff);text-decoration-color:currentColor}

.scrim{position:fixed;inset:0;background:rgba(5,3,18,.6);display:flex;align-items:center;justify-content:center;z-index:10;padding:16px}
.card{background:var(--surface);border:1px solid var(--edge);width:100%;max-width:520px;max-height:86vh;overflow:auto;border-radius:20px;padding:20px 18px}
.card h2{font:900 22px/1.15 var(--display);margin:0 0 10px}
.card h3{font:700 16px var(--display);margin:0 0 12px}
.card p{margin:0 0 12px;color:var(--muted)}
.card .row{display:flex;align-items:center;gap:8px;margin:8px 0;flex-wrap:wrap}
.card .row.between{justify-content:space-between}
.card label{display:flex;align-items:center;gap:8px}
.card input[type=number]{width:72px;background:var(--bg);border:1px solid var(--edge);border-radius:8px;padding:5px 7px}
.card input[type=text]{flex:1;min-width:0;background:var(--bg);border:1px solid var(--edge);border-radius:10px;padding:8px 10px}
.card .list{display:flex;flex-direction:column;gap:6px;margin:6px 0 12px}
.item{display:flex;align-items:center;gap:8px;border:1px solid var(--edge);border-radius:14px;padding:8px 10px;background:var(--bg)}
.item .dot{width:12px;height:12px;border-radius:50%;background:var(--c);flex:0 0 auto}
.item .nm{flex:1;font-weight:700;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .sub{font-size:12px;color:var(--muted);font-weight:400;white-space:normal}
.libitem .acts{display:flex;gap:8px;flex:0 0 auto}
.libitem{touch-action:pan-y;user-select:none}
.item.gone{border-style:dashed;color:var(--muted)}
@media (max-width:600px){.libitem{flex-wrap:wrap}.libitem .nm{flex:1 1 100%}.libitem .acts{flex:1 1 100%;flex-wrap:wrap}}
.item.cur{border-color:var(--acc)}
.btn{background:var(--surface-2);border:1px solid var(--edge);border-radius:10px;padding:7px 12px;font-weight:700;font-size:13px}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--acc);border-color:var(--acc);color:var(--acc-ink)}
.btn.danger{color:#ffb0b0}
.langs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.langs .chip{font-weight:700}
.card textarea{width:100%;min-height:110px;background:var(--bg);border:1px solid var(--edge);border-radius:10px;padding:8px;font:12px/1.4 ui-monospace,Menlo,Consolas,monospace;color:var(--ink);resize:vertical}
.card a{color:#8fd3ff}
.grid2{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:6px;margin-bottom:10px}

.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--surface-2);border:1px solid var(--edge);border-radius:14px;padding:10px 16px;z-index:20;max-width:calc(100vw - 32px);box-shadow:0 10px 30px rgba(0,0,0,.4)}

@media (max-width:560px){
  .logo{font-size:16px}
  .lane .vol{width:60px}
  .app{padding:10px 12px 24px}
}
.grp-h{font:700 11px var(--display);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:14px 0 2px}
.card p.small{font-size:12px;margin:-4px 0 10px}
.card .prog{height:6px;border-radius:3px;background:var(--bg);overflow:hidden;margin:10px 0}
.card .prog i{display:block;height:100%;width:0;background:var(--acc);transition:width .15s}
.card audio{width:100%;margin:6px 0}
.card a.btn{text-decoration:none;color:var(--ink);display:inline-block}
.card a.btn.primary{color:var(--acc-ink)}
.chip:disabled{opacity:.35;cursor:default}
/* desktop: patterned wallpaper either side of the editor (seamless tile, tinted towards --bg) */
@media (min-width:900px){
  body{background:var(--bg) url(../img/wall.webp) repeat;background-size:540px}
  .app{background:var(--bg);min-height:100vh;box-shadow:0 0 0 1px rgba(255,255,255,.04),0 0 80px 30px rgba(5,3,18,.75)}
}
.card .list{overflow-x:hidden}
.libitem .btn.on{border-color:var(--acc);color:#fff}
.autofill{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);z-index:2;box-shadow:0 4px 18px rgba(255,61,127,.35)}
.edtools .ic[aria-pressed=true]{background:#ff3d7f;border-color:#ff3d7f;color:#fff}
#ring.erasing{cursor:none}
/* flat view: lanes x bars, read-only; the toggle sits top right of the ring area */
.flattgl{position:absolute;top:4px;right:4px;z-index:2;width:42px;height:42px;background:rgba(20,15,50,.82)}
.flattgl svg{width:20px;height:20px}
.flattgl[aria-pressed=true]{background:#ff3d7f;border-color:#ff3d7f;color:#fff}
#flat{display:block;cursor:pointer;position:sticky;left:0}
.flatwrap{margin-top:48px;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain}
.flatwrap[hidden],#ring[hidden]{display:none}