:root{--bg:#15171a;--panel:#1e2126;--line:#2c3038;--fg:#e6e6e6;--dim:#8a919c;--acc:#ff8a3d;--acc2:#4fc3f7;--hit:#ffd166;--warn:#ffb454;--bad:#ff6b6b}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.4 -apple-system,"Helvetica Neue",Arial,sans-serif}
header{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:8px 14px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header h1{font-size:15px;margin:0 8px 0 0;letter-spacing:.04em;color:var(--acc)}
button{background:#2b3038;color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:5px 11px;cursor:pointer;font-size:13px}
button:hover{border-color:var(--acc)}
button.primary{background:var(--acc);color:#111;border-color:var(--acc);font-weight:600}
button.on{background:#3b4250;border-color:var(--acc2)}
button.danger:hover{border-color:var(--bad);color:var(--bad)}
select,input{background:#2b3038;color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:4px 7px;font-size:13px}
input[type=number]{width:64px}
label{color:var(--dim);font-size:11px;display:flex;flex-direction:column;gap:2px}
.sep{width:1px;height:28px;background:var(--line)}
main{display:grid;grid-template-columns:270px 1fr;min-height:calc(100vh - 52px)}
nav{border-right:1px solid var(--line);background:var(--panel);overflow:auto;max-height:calc(100vh - 52px)}
nav h2{font-size:11px;color:var(--dim);margin:12px 12px 4px;text-transform:uppercase;letter-spacing:.08em;display:flex;justify-content:space-between;align-items:center}
nav h2 button{padding:1px 7px;font-size:12px}
nav .item{padding:5px 12px;cursor:pointer;display:flex;justify-content:space-between;gap:8px;border-left:3px solid transparent}
nav .item:hover{background:#262a31}
nav .item.sel{border-left-color:var(--acc);background:#262a31}
nav .item.empty{color:#555}
nav .item .n{font-family:ui-monospace,Menlo,monospace;color:var(--dim);min-width:34px}
nav .item .meta{color:var(--dim);font-size:11px;white-space:nowrap}
section{padding:12px 16px;overflow:auto}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:10px}
.pads{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;max-width:760px}
.pad{aspect-ratio:1.35;background:#262a31;border:1px solid var(--line);border-radius:8px;padding:5px 6px;cursor:pointer;display:flex;flex-direction:column;justify-content:space-between;user-select:none}
.pad .id{font-size:10px;color:var(--dim);font-family:ui-monospace,Menlo,monospace}
.pad .nm{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pad .pt{font-size:10px;color:var(--dim)}
.pad.hit{background:var(--hit);color:#111}
.pad.hit .id,.pad.hit .pt{color:#333}
.grid{margin-top:12px;overflow:auto;border:1px solid var(--line);border-radius:8px;background:var(--panel)}
.grid table{border-collapse:collapse;font-size:11px}
.grid td,.grid th{border-right:1px solid #262a31;border-bottom:1px solid #262a31;min-width:16px;height:20px;padding:0;text-align:center}
.grid td.cell{cursor:pointer}
.grid td.cell:hover{outline:1px solid var(--acc2);outline-offset:-1px}
.grid th{position:sticky;left:0;background:var(--panel);text-align:left;padding:0 8px;white-space:nowrap;font-weight:500;color:var(--dim);z-index:1;cursor:pointer}
.grid th:hover{color:var(--fg)}
.grid td.beat{border-left:2px solid #3a404c}
.grid td.on{background:var(--acc)}
.kv{display:flex;gap:16px;flex-wrap:wrap;color:var(--dim);font-size:13px;margin:4px 0 10px;align-items:center}
.kv b{color:var(--fg);font-weight:500}
table.kit{border-collapse:collapse;font-size:12px}
table.kit th,table.kit td{border-bottom:1px solid var(--line);padding:2px 5px;text-align:left}
table.kit th{color:var(--dim);font-weight:500;position:sticky;top:0;background:var(--bg)}
table.kit td.play{cursor:pointer;color:var(--acc2)}
table.kit input[type=number]{width:58px;padding:2px 4px}
table.kit select{padding:2px 4px;max-width:120px}
.status{color:var(--dim);font-size:12px;margin-left:auto}
.status.mod{color:var(--warn)}
.tabs{display:flex;gap:4px;margin-bottom:10px}
.hint{color:var(--dim);font-size:12px;margin:6px 0}
.warn{color:var(--warn);font-size:12px}
.pos{font-family:ui-monospace,Menlo,monospace;color:var(--acc2);min-width:56px;font-size:16px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.chip{background:#2b3038;border:1px solid var(--line);border-radius:14px;padding:3px 8px 3px 10px;display:flex;gap:6px;align-items:center;cursor:grab}
.chip.cur{border-color:var(--acc2)}
.chip b{font-weight:500;font-family:ui-monospace,Menlo,monospace}
.chip span{color:var(--dim);cursor:pointer}
.chip span:hover{color:var(--bad)}
input.name{width:110px;font-family:ui-monospace,Menlo,monospace;letter-spacing:.05em}
.toast{position:fixed;bottom:16px;right:16px;background:#2b3038;border:1px solid var(--line);padding:8px 14px;border-radius:8px;font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none;max-width:420px}
.toast.show{opacity:1}

/* DR-660 panel: matte black plastic, grey rubber, blue START, red REC */
.transport{display:flex;align-items:center;gap:10px;background:#1a1a1c;border:1px solid #0d0d0e;border-radius:10px;padding:6px 12px 8px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.tk{display:flex;flex-direction:column;align-items:center;gap:3px;height:54px}
.tk button{margin:auto 0}
.tk .lbl{font:600 9px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.06em;color:#e8e8e8;display:flex;align-items:center;gap:4px;height:10px}
.tk.updown{flex-direction:row;gap:6px;margin-left:6px;height:auto}
.led{width:6px;height:6px;border-radius:50%;background:#2a1a1a;box-shadow:inset 0 0 1px #000;display:inline-block;transition:background .04s,box-shadow .04s}
.led.on{background:#ff3b30;box-shadow:0 0 5px #ff3b30,0 0 10px rgba(255,59,48,.6)}
button.rb{--c1:#5d5f64;--c2:#45474b;--c3:#333539;position:relative;padding:0;border:none;color:#f4f4f4;cursor:pointer;
  background:radial-gradient(120% 90% at 50% 20%,var(--c1),var(--c2) 70%,var(--c3));
  box-shadow:0 3px 0 #0a0a0b,0 4px 6px rgba(0,0,0,.7),inset 0 1px 1px rgba(255,255,255,.18),inset 0 -2px 3px rgba(0,0,0,.35);
  transition:transform .05s,box-shadow .05s,filter .1s}
button.rb:hover{filter:brightness(1.1);border:none}
button.rb:active,button.rb.on{transform:translateY(3px);box-shadow:0 0 0 #0a0a0b,0 1px 2px rgba(0,0,0,.7),inset 0 1px 1px rgba(255,255,255,.1),inset 0 -1px 2px rgba(0,0,0,.35)}
button.rb.round{width:36px;height:36px;border-radius:50%}
button.rb.wide{width:96px;height:34px;border-radius:17px}
button.rb.pill{width:44px;height:22px;border-radius:11px;font-size:10px}
button.rb.blue{--c1:#7d93e6;--c2:#5f78d6;--c3:#4a63c2}
button.rb.red{--c1:#f0616a;--c2:#d9474f;--c3:#b83840}
button.rb.on.blue{--c1:#8fa3f0;--c2:#6f88e3;--c3:#5a73d2}
button.rb.on.red{--c1:#ff7a82;--c2:#f0555e;--c3:#c9414a}
.ic{font-style:normal;font-size:12px;line-height:1;letter-spacing:-2px}
button.rb.wide .ic{font-size:13px}
button.rb.pill .ic{font-size:9px}
/* other buttons and tabs: small rubber pills like SONG / PAD / EFFECT */
button:not(.rb){background:radial-gradient(120% 90% at 50% 20%,#5d5f64,#45474b 70%,#333539);border:none;border-radius:12px;color:#f2f2f2;font:600 11px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.04em;padding:7px 12px;
  box-shadow:0 2px 0 #0a0a0b,0 3px 4px rgba(0,0,0,.6),inset 0 1px 1px rgba(255,255,255,.16)}
button:not(.rb):hover{filter:brightness(1.1);border:none}
button:not(.rb):active,button:not(.rb).on{transform:translateY(2px);box-shadow:0 0 0 #0a0a0b,0 1px 2px rgba(0,0,0,.6),inset 0 1px 2px rgba(0,0,0,.4)}
button:not(.rb).on{color:var(--acc)}
button:not(.rb).danger:hover{color:#ff8a8a}
nav h2 button{padding:3px 8px;border-radius:9px}
/* pads: rubber squares with number and name */
.pad{background:radial-gradient(130% 100% at 50% 10%,#5f6166,#4b4d51 65%,#3a3c40);border:none;border-radius:7px;padding:5px 7px;color:#f2f2f2;
  box-shadow:0 3px 0 #0a0a0b,0 4px 6px rgba(0,0,0,.7),inset 0 1px 1px rgba(255,255,255,.14),inset 0 -2px 3px rgba(0,0,0,.3);transition:transform .04s,box-shadow .04s,filter .06s}
.pad .id{color:#f2f2f2;font:500 11px/1 "Helvetica Neue",Arial,sans-serif}
.pad .nm{font:500 12px/1.2 "Helvetica Neue",Arial,sans-serif;text-transform:uppercase;letter-spacing:.02em}
.pad .pt{color:#c8c8c8;font-size:9px}
.pad:active,.pad.hit{transform:translateY(3px);box-shadow:0 0 0 #0a0a0b,0 1px 2px rgba(0,0,0,.7),inset 0 1px 1px rgba(255,255,255,.1);filter:brightness(1.35);color:#fff}
.pad.hit .id,.pad.hit .pt{color:#fff}
.banks{display:flex;gap:18px;flex-wrap:wrap;background:#1a1a1c;padding:10px 12px 12px;border-radius:10px;border:1px solid #0d0d0e;max-width:820px}
.bank{flex:1 1 300px;min-width:280px}
.bank .bl{font:600 9px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.08em;color:#e8e8e8;margin:2px 0 6px 2px}
.pads{grid-template-columns:repeat(4,1fr);gap:9px;max-width:none}

/* LCD as on the panel: grey-green glass, dark segments, divider lines */
.lcd{display:grid;grid-template-columns:1.1fr 1fr 1.3fr;grid-template-rows:auto auto;background:linear-gradient(160deg,#b7c0ae,#a5ae9d 60%,#9ea795);border:6px solid #141416;border-radius:6px;
  box-shadow:inset 0 0 18px rgba(0,0,0,.25),0 0 0 1px #2a2a2e,0 2px 6px rgba(0,0,0,.6);min-width:290px;color:#1c241c;font-family:"Helvetica Neue",Arial,sans-serif}
.lcd .c{padding:3px 8px 4px;border-right:1px solid #566052;border-bottom:1px solid #566052;display:flex;flex-direction:column;gap:1px;min-height:30px}
.lcd .c:nth-child(3n){border-right:none}
.lcd .c:nth-child(n+4){border-bottom:none}
.lcd .lb{font-size:7px;font-weight:600;letter-spacing:.1em;color:#3a443a;line-height:1}
.lcd .tx{font-size:11px;font-weight:700;letter-spacing:.06em;line-height:1.2;color:#1c241c}
.lcd .tx.nm{font-family:ui-monospace,Menlo,monospace;font-size:13px;letter-spacing:.14em;white-space:pre}
.lcd .sg{display:flex;gap:2px;align-items:flex-end;line-height:0}
.lcd .sg svg{width:11px;height:18px}
.lcd .sg.big svg{width:14px;height:24px}
.lcd .sg .dp{width:4px;height:4px;border-radius:1px;background:#1c241c;margin:0 0 1px}
.lcd .seg{fill:#1c241c}.lcd .off{fill:rgba(28,36,28,.09)}

/* knobs as on the panel: wide black disc, fine knurling on the rim only, smooth top and a domed glossy cap in the centre */
.knobs{display:flex;gap:26px;align-items:flex-start;padding:0 10px}
.kn{display:flex;flex-direction:column;align-items:center;gap:5px}
.kn .lbl{font:600 9px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.06em;color:#e8e8e8}
.kn .lbl.sub{font-size:7px;color:#bdbdbd;letter-spacing:.08em;margin-top:-3px}
.knob{width:74px;height:74px;border-radius:50%;position:relative;cursor:ns-resize;user-select:none;touch-action:none;transform:rotate(var(--a,0deg));
  background:repeating-conic-gradient(#2b2b2e 0 2deg,#0b0b0c 2deg 4deg);
  box-shadow:0 3px 0 #060607,0 6px 12px rgba(0,0,0,.85),inset 0 0 0 1px #000}
.knob::before{content:"";position:absolute;inset:5px;border-radius:50%;background:radial-gradient(circle at 42% 34%,#2e2f33,#1d1e21 60%,#141416);box-shadow:inset 0 1px 1px rgba(255,255,255,.08),inset 0 -2px 4px rgba(0,0,0,.6)}
.knob::after{content:"";position:absolute;left:50%;top:50%;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;
  background:radial-gradient(circle at 38% 30%,#4a4b50,#26272b 45%,#111214 100%);box-shadow:0 1px 2px rgba(0,0,0,.9),inset 0 1px 1px rgba(255,255,255,.18)}
.knob .ptr{position:absolute;left:50%;top:7px;width:2px;height:6px;margin-left:-1px;border-radius:1px;background:#8d8f95;opacity:.9}
.knob:active{filter:brightness(1.08)}

/* bottom panel row: function pills, numeric keypad, round buttons */
.devpanel{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-start;padding:10px 16px 8px;background:#1a1a1c;border-bottom:1px solid #0d0d0e}
.fnblock{display:grid;grid-template-columns:repeat(2,auto);gap:6px 10px}
.keypad{display:grid;grid-template-columns:repeat(3,auto);gap:6px 10px}
.fn{display:flex;flex-direction:column;align-items:center;gap:2px}
.fn.span2{grid-column:span 2}
.fn .cap{font:600 8px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.1em;color:#d8d8d8;height:9px;white-space:nowrap}
.fn .cap i{font-style:normal;margin-left:3px;color:#bdbdbd}
button.rb.pill.w{width:58px;height:22px;font:600 10px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.04em}
button.rb.pill.ww{width:126px;height:22px;font:600 10px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.06em}
.keypad button.rb.pill.ww{width:62px}
.keypad .fn.span2 button.rb.pill.ww{width:62px;justify-self:center}
button.rb.pill.num{width:46px;height:22px;font:600 11px/1 "Helvetica Neue",Arial,sans-serif}
.roundrow{display:flex;gap:12px;align-items:center;padding-top:10px}
button.rb.round.lg{width:46px;height:46px;font:600 9px/1.05 "Helvetica Neue",Arial,sans-serif;letter-spacing:.04em}
button.rb.round.ring{box-shadow:0 3px 0 #0a0a0b,0 4px 6px rgba(0,0,0,.7),inset 0 0 0 2px rgba(255,255,255,.55),inset 0 1px 1px rgba(255,255,255,.18)}
button.rb.round.ring.on{box-shadow:0 0 0 #0a0a0b,0 1px 2px rgba(0,0,0,.7),inset 0 0 0 2px var(--acc)}
.devpanel .hint{width:100%;margin:2px 0 0}
.lcd .c.dial .lb{color:#1c241c;background:#1c241c;color:#b7c0ae;padding:1px 3px;border-radius:2px;margin:-1px -3px 0}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:flex-start;justify-content:center;z-index:50;padding-top:60px}
.modal[hidden]{display:none}
.modal .box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;width:min(760px,94vw);box-shadow:0 10px 40px rgba(0,0,0,.6)}
.modal .mh{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:15px}
.modal h3{font-size:12px;color:var(--dim);text-transform:uppercase;letter-spacing:.08em;margin:14px 0 6px}
.modal label.chk{flex-direction:row;align-items:center;gap:6px;color:var(--fg);font-size:13px}
.modal .bar{height:6px;background:#2b3038;border-radius:3px;overflow:hidden;margin:8px 0 4px}
.modal .bar div{height:100%;width:0;background:var(--acc2);transition:width .1s}

.gridtools{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:8px 0 2px}
button.rb.round.sm{width:40px;height:40px;font:600 9px/1 "Helvetica Neue",Arial,sans-serif}
.grid td.roll{background:repeating-linear-gradient(90deg,var(--acc) 0 3px,#6a3a18 3px 5px)}
.grid td.flam{box-shadow:inset 3px 0 0 #ffd166}
.grid td.drag{outline:2px solid var(--acc2);outline-offset:-2px}

/* ---------- 1:1 mode: DR-660 panel from the top-view photo ---------- */
#device{position:fixed;inset:0;z-index:40;background:radial-gradient(ellipse at 50% 40%,#2a2a2c,#0c0c0d 75%);display:flex;align-items:center;justify-content:center}
#device[hidden]{display:none}
#devExit{position:fixed;top:10px;right:12px;z-index:41}
/* The panel is laid out at one fixed size (1335 px, the photo's width) and scaled as a whole: text in cqw at phone widths
   would be 4-5 px, which Safari inflates and Chromium clamps, so labels grew over the keys. */
.d-fit{position:relative;width:min(96vw,calc(94vh*1.3024));width:min(96vw,calc(94dvh*1.3024));aspect-ratio:1335/1025}
.d-fit>.d-body{position:absolute;left:0;top:0;transform:scale(var(--k,1));transform-origin:0 0}
.d-body{position:relative;width:1335px;aspect-ratio:1335/1025;container-type:inline-size;border-radius:2.2cqw;
  background:linear-gradient(170deg,#3b3c40,#323336 45%,#2c2d30);box-shadow:0 2.5cqw 4cqw rgba(0,0,0,.75),inset 0 .15cqw 0 rgba(255,255,255,.07),inset 0 -.3cqw .6cqw rgba(0,0,0,.4);font-family:"Helvetica Neue",Arial,sans-serif}
.d-body>*{position:absolute}
.d-lbl{color:#f0f0f0;font-size:1.2cqw;font-weight:500;letter-spacing:.02em;white-space:nowrap;line-height:1}
.d-lbl.c{transform:translate(-50%,-50%)}
.d-lbl.k{transform:translateY(-50%);font-size:1.05cqw;color:#dcdcdc;letter-spacing:.08em}
.d-lbl.n{transform:translate(-50%,-50%);font-size:1.3cqw;color:#dcdcdc}
.d-lbl.ind{font-size:1.05cqw;display:flex;align-items:center;gap:.5cqw}
.d-lbl.ind i{display:inline-block;width:3cqw;height:.12cqw;background:#e0e0e0}
.d-bezel{background:#101012;border-radius:.8cqw;box-shadow:inset 0 .2cqw .5cqw rgba(0,0,0,.9),0 .1cqw 0 rgba(255,255,255,.06)}
.d-logo{position:absolute;left:6%;top:9%;display:flex;align-items:baseline;gap:4%;white-space:nowrap}
.d-logo .boss{font:900 2.6cqw/1 "Arial Black","Helvetica Neue",Arial,sans-serif;color:#e9e9e9;letter-spacing:.05em;padding-left:2.5cqw;position:relative}
.d-logo .boss::before{content:"";position:absolute;left:0;top:.15cqw;width:1.9cqw;height:1.9cqw;border:.25cqw solid #e9e9e9;border-radius:.25cqw;box-sizing:border-box}
.d-logo .drr{font:italic 600 2.05cqw/1 "Helvetica Neue",Arial,sans-serif;color:#5fc6ea;letter-spacing:.03em}
.d-lcd{background:linear-gradient(165deg,#c9d3bd,#b5c0aa 55%,#aab59f);box-shadow:inset 0 0 1.2cqw rgba(0,0,0,.25);display:grid;grid-template-columns:30% 15.6% 54.4%;grid-template-rows:37% 63%;color:#1f281f}
.d-lcd .z{position:relative;border:.12cqw solid #4f5a4c;margin:-.06cqw;padding:.35cqw .5cqw;overflow:hidden}
.d-lcd .h{font-size:.7cqw;font-weight:600;letter-spacing:.08em;color:#3b4639;display:block}
.d-lcd .h.r{position:absolute;right:.5cqw;top:.35cqw}
.d-lcd .t{font-size:1.5cqw;font-weight:700;letter-spacing:.06em}
.d-lcd .t.big{position:absolute;left:.6cqw;bottom:.3cqw;font-size:2.8cqw}
.d-lcd .z-mode{grid-column:1;grid-row:1}.d-lcd .z-func{grid-column:2;grid-row:1}
.d-lcd .z-main{grid-column:1/3;grid-row:2}
.d-lcd .z-bank{grid-column:3;grid-row:1/2;}
.d-lcd .z-meas{grid-column:3;grid-row:2}
.d-lcd .sg{position:absolute;right:.6cqw;bottom:.4cqw;display:flex;gap:.25cqw;align-items:flex-end;line-height:0}
.d-lcd .sg svg{width:1.7cqw;height:3cqw}
.d-lcd .z-main .sg{left:.6cqw;right:auto;top:1.4cqw;bottom:auto}
.d-lcd .z-main .sg svg{width:1.5cqw;height:2.6cqw}
.d-lcd .sg .dp{width:.45cqw;height:.45cqw;background:#1f281f;border-radius:.08cqw;margin-bottom:.1cqw}
.d-lcd .seg{fill:#1f281f}.d-lcd .off{fill:rgba(31,40,31,.08)}
.d-lcd .dm{position:absolute;right:.6cqw;bottom:.5cqw;font:700 2cqw/1 ui-monospace,Menlo,monospace;letter-spacing:.18em;white-space:pre;color:#1f281f;text-shadow:0 0 .05cqw #1f281f}
.d-knob{border-radius:50%;cursor:ns-resize;touch-action:none;user-select:none;
  box-shadow:0 .5cqw 0 #070708,0 1.1cqw 2cqw rgba(0,0,0,.8),inset 0 0 0 .15cqw #0a0a0b}
.d-knob>*{position:absolute;inset:0;border-radius:50%;pointer-events:none}
.d-knob .knurl{background:repeating-conic-gradient(#3c3d41 0 1.2deg,#121214 1.2deg 2.4deg);transform:rotate(var(--a,0deg))}
.d-knob .top{inset:8%;background:radial-gradient(circle at 45% 35%,#34353a,#26272a 60%,#202124);box-shadow:0 0 0 .12cqw #0c0c0d,inset 0 .12cqw .15cqw rgba(255,255,255,.07)}
.d-knob .dw{transform:rotate(var(--a,0deg))}
.d-knob .dimple{position:absolute;left:50%;top:9%;width:33%;height:33%;margin-left:-16.5%;border-radius:50%;transform:rotate(calc(-1 * var(--a,0deg)));
  background:radial-gradient(circle at 40% 30%,#4a4b50,#26272b 50%,#141416);box-shadow:0 .3cqw .5cqw rgba(0,0,0,.9),inset 0 .1cqw .1cqw rgba(255,255,255,.2)}
.d-btn{border:none;padding:0;cursor:pointer;color:#f2f2f2;font-family:"Helvetica Neue",Arial,sans-serif;font-weight:500;
  background:radial-gradient(120% 95% at 50% 25%,#6b6c71,#57585c 65%,#48494d);box-shadow:0 0 0 .28cqw #1a1a1c,0 .35cqw .5cqw rgba(0,0,0,.6),inset 0 .1cqw .1cqw rgba(255,255,255,.2),inset 0 -.2cqw .3cqw rgba(0,0,0,.3);
  transition:transform .05s,filter .08s;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.05}
.d-btn:hover{filter:brightness(1.08)}
.d-btn:active,.d-btn.on{transform:translateY(.2cqw) scale(.985);filter:brightness(1.15)}
.d-btn.on span{color:#ffd29a}
.d-btn.pill{border-radius:3cqw;font-size:1.15cqw}
.d-btn.round{border-radius:50%;font-size:1.05cqw}
.d-btn.round.t{font-size:1.5cqw;letter-spacing:-.2cqw}
.d-btn.round.t.enter{font-size:1.05cqw;letter-spacing:0}
.d-btn.ring span{border:.15cqw solid #f4f4f4;border-radius:2cqw;padding:.2cqw .6cqw;font-size:1cqw}
.d-btn.wide{border-radius:3cqw;font-size:1.6cqw}
.d-btn.blue{background:radial-gradient(120% 95% at 50% 25%,#8ea3ee,#6c86dd 65%,#5b74cc)}
.d-btn.red{background:radial-gradient(120% 95% at 50% 25%,#f0707a,#dc4d57 65%,#c63e48);font-size:1.6cqw}
.d-pad{border-radius:.9cqw;cursor:pointer;user-select:none;color:#f2f2f2;
  background:radial-gradient(130% 110% at 50% 15%,#727378,#5f6065 60%,#515256);box-shadow:0 0 0 .3cqw #18181a,0 .4cqw .6cqw rgba(0,0,0,.6),inset 0 .12cqw .12cqw rgba(255,255,255,.18),inset 0 -.25cqw .35cqw rgba(0,0,0,.3);transition:transform .04s,filter .05s}
.d-pad .no{position:absolute;left:7%;top:12%;font-size:1.1cqw}
.d-pad .nm{position:absolute;left:7%;bottom:14%;font-size:1.2cqw;letter-spacing:.01em}
.d-pad.hit,.d-pad:active{transform:translateY(.25cqw);filter:brightness(1.35)}
.d-led{width:.7cqw;height:.7cqw;border-radius:50%;background:#3a2020;transform:translate(-50%,-50%);box-shadow:inset 0 0 .1cqw #000}
.d-led.on{background:#ff3b30;box-shadow:0 0 .6cqw #ff3b30,0 0 1.2cqw rgba(255,59,48,.6)}
.toast{z-index:60}

/* ---------- LCD per the manual diagram ---------- */
.lcd660{container-type:inline-size;width:100%;aspect-ratio:460/177;display:grid;grid-template-columns:46.5% 53.5%;color:#1c251c;font-family:"Helvetica Neue",Arial,sans-serif;
  background:linear-gradient(165deg,#c7d1bb,#b3bea8 55%,#a8b39d);box-shadow:inset 0 0 3cqw rgba(0,0,0,.22);overflow:hidden;position:relative}
.lcd660 .L,.lcd660 .R{position:relative;border:.35cqw solid #465244;margin:.8cqw .5cqw;display:flex;flex-direction:column}
.lcd660 .L{margin-right:.4cqw}.lcd660 .R{margin-left:.4cqw}
.lcd660 .hd{display:flex;align-items:center;gap:0;font-size:2.1cqw;font-weight:600;letter-spacing:.06em;color:#394537;border-bottom:.3cqw solid #465244;height:4.6cqw;padding:0 1.2cqw;flex:none}
.lcd660 .L .hd span:first-child{flex:1}.lcd660 .L .hd .fn{width:27%;border-left:.3cqw solid #465244;height:100%;display:flex;align-items:center;padding-left:1cqw}
.lcd660 .R .hd span:first-child{flex:1}.lcd660 .R .hd .bk{width:12%;text-align:center;font-size:2.3cqw}
.lcd660 .w{opacity:.06;font-size:2.15cqw;font-weight:600;letter-spacing:.04em;line-height:1.12;white-space:nowrap}
.lcd660 .w.on{opacity:1}
.lcd660 .w small{font-size:1.6cqw}
.lcd660 .modes{position:absolute;left:1.2cqw;top:5.1cqw;width:calc(73% - 2cqw)}
.lcd660 .mr{display:flex;justify-content:space-between}
.lcd660 .funcs{position:absolute;right:0;top:4.6cqw;width:27%;border-left:.3cqw solid #465244;height:10.9cqw;padding:.5cqw 0 0 1cqw;display:flex;flex-direction:column}
.lcd660 .r2{position:absolute;left:0;right:0;top:15.5cqw;border-top:.3cqw solid #465244;display:flex;padding:.4cqw 1.2cqw 0;height:8.6cqw}
.lcd660 .r2 .c{display:flex;flex-direction:column;flex:1}
.lcd660 .r2 .vd{width:.3cqw;background:#465244;height:6cqw;margin:0 1.4cqw 0 0}
.lcd660 .dm{position:absolute;left:1.6cqw;right:1.6cqw;bottom:1.2cqw;display:flex;flex-direction:column;gap:1.1cqw}
.lcd660 .dm>div{height:5.6cqw}
.lcd660 .dml{width:100%;height:100%;display:block}
.lcd660 .dml rect.on{fill:#1c251c}.lcd660 .dml rect.off{fill:rgba(28,37,28,.045)}.lcd660 .dml rect.inv{fill:#c2ccb6}
.lcd660 .num{position:relative;flex:1;display:flex;align-items:stretch}
.lcd660 .num.up{border-bottom:.3cqw solid #465244}
.lcd660 .num .lb{display:flex;flex-direction:column;justify-content:space-between;padding:.5cqw 0 .6cqw 1.2cqw;width:34%}
.lcd660 .num.lo .lb{justify-content:space-between}
.lcd660 .num .dg{flex:1;display:flex;justify-content:flex-end;align-items:center;gap:.2cqw;padding-right:1.2cqw}
.lcd660 .d7{height:13.6cqw;width:auto;display:block}
.lcd660 .d7 .on{fill:#1c251c}.lcd660 .d7 .off{fill:rgba(28,37,28,.045)}
.lcd660 .blink{animation:lcdblink 1s steps(1) infinite}
@keyframes lcdblink{50%{opacity:0}}
.lcd660 .num .lb .ur{display:flex;gap:1.2cqw}
.lcd660 .cb{animation:lcdblink .9s steps(1) infinite}

.lcd660 .w.on.blink{animation:lcdblink 1s steps(1) infinite}
.lcdh{width:330px;background:#141416;border-radius:6px;padding:5px;box-shadow:0 0 0 1px #2a2a2e,0 2px 6px rgba(0,0,0,.6)}
.d-lcd{background:none!important;box-shadow:none!important;display:block!important}
.d-lcd #lcdD{width:100%;height:100%}
.d-lcd .lcd660{height:100%;aspect-ratio:auto}

button.rb.held,.d-btn.held{transform:translateY(.2cqw) scale(.985);filter:brightness(1.2)}
button.rb.held{transform:translateY(3px)}
@media (max-width:820px){main{grid-template-columns:1fr}nav{max-height:220px}}

/* ================= EDITOR THEME: inherits the DR-660 panel ================= */
:root{--desk:#101011;--body1:#3b3c40;--body2:#323336;--body3:#2c2d30;--well:#18181a;--edge:#0b0b0c;--fg:#efefef;--dim:#a3a5ab;
  --lcd1:#c7d1bb;--lcd2:#b3bea8;--lcd3:#a8b39d;--ink:#1c251c;--ink2:rgba(28,37,28,.55);--ink3:rgba(28,37,28,.14);--blue:#6c86dd;--red:#dc4d57;--acc:#ffd29a;--acc2:#6c86dd;--line:#0b0b0c;--panel:#303134}
body{background:radial-gradient(ellipse at 50% 0%,#2b2b2e 0,#141415 55%,#0c0c0d 100%) fixed;color:var(--fg);font:13px/1.4 "Helvetica Neue",Arial,sans-serif}
.slab{background:linear-gradient(170deg,var(--body1),var(--body2) 45%,var(--body3));border-radius:14px;box-shadow:0 10px 26px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.07),inset 0 -2px 6px rgba(0,0,0,.35)}
.lcdglass{background:linear-gradient(165deg,var(--lcd1),var(--lcd2) 55%,var(--lcd3));color:var(--ink);border:7px solid #111113;border-radius:7px;box-shadow:inset 0 0 18px rgba(0,0,0,.22),0 0 0 1px #2a2a2e}
/* toolbar */
header.tb{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:9px 18px;
  background:linear-gradient(#3a3b3f,#2e2f32);border-bottom:1px solid var(--edge);box-shadow:0 3px 10px rgba(0,0,0,.55)}
.tb .brand{display:flex;align-items:baseline;gap:10px;white-space:nowrap;margin-right:6px}
.tb .brand .boss{font:900 19px/1 "Arial Black","Helvetica Neue",Arial,sans-serif;letter-spacing:.05em;color:#ececec;padding-left:20px;position:relative}
.tb .brand .boss::before{content:"";position:absolute;left:0;top:1px;width:14px;height:14px;border:2px solid #ececec;border-radius:2px;box-sizing:border-box}
.tb .brand .drr{font:italic 600 15px/1 "Helvetica Neue",Arial,sans-serif;color:#5fc6ea}
.tb .brand .studio{font:700 10px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.2em;color:var(--dim)}
.tb .grp{display:flex;align-items:center;gap:7px}
.tb .cap,.cap{font:700 9px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.12em;color:#dcdcdc;margin-right:3px}
.tb .status{margin-left:auto;color:var(--dim);font-size:11px}.tb .status.mod{color:var(--acc)}
select,input{background:var(--well);color:var(--fg);border:1px solid var(--edge);border-radius:9px;padding:5px 9px;font:12px "Helvetica Neue",Arial,sans-serif;box-shadow:inset 0 1px 3px rgba(0,0,0,.8),0 1px 0 rgba(255,255,255,.06)}
select:focus,input:focus{outline:1px solid #5fc6ea}
.tb select{max-width:210px}
label{color:#dcdcdc;font:700 9px/1.2 "Helvetica Neue",Arial,sans-serif;letter-spacing:.1em;gap:4px}
/* docked device */
#device{position:relative;inset:auto;z-index:1;background:none;display:flex;justify-content:center;padding:22px 12px 10px}
#device .d-fit{width:min(980px,96vw)}
#devExit{display:none}
body.full #device{position:fixed;inset:0;z-index:40;background:radial-gradient(ellipse at 50% 40%,#2a2a2c,#0c0c0d 75%);align-items:center;padding:0}
body.full #device .d-fit{width:min(96vw,calc(94vh*1.3024));width:min(96vw,calc(94dvh*1.3024))}
body.full #devExit{display:block;position:fixed;top:12px;right:14px;z-index:41}
body.full header.tb,body.full main{display:none}
/* editor area */
main{display:grid;grid-template-columns:270px 1fr;gap:16px;max-width:1180px;margin:14px auto 50px;padding:0 12px;min-height:0;align-items:start}
nav,section{background:linear-gradient(170deg,var(--body1),var(--body2) 45%,var(--body3));border:none;border-radius:14px;
  box-shadow:0 10px 26px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.07),inset 0 -2px 6px rgba(0,0,0,.35);max-height:none;overflow:visible}
nav{padding:12px 12px 14px}section{padding:14px 18px 18px}
nav h2{font:700 10px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.14em;color:#e4e4e4;margin:6px 2px 8px;text-transform:none}
nav h2:not(:first-child){margin-top:16px}
#patlist,#songlist{background:linear-gradient(165deg,var(--lcd1),var(--lcd2) 55%,var(--lcd3));border:7px solid #111113;border-radius:7px;box-shadow:inset 0 0 18px rgba(0,0,0,.22),0 0 0 1px #2a2a2e;
  max-height:46vh;overflow:auto;padding:3px 0;font-family:ui-monospace,Menlo,monospace}
#songlist{max-height:22vh}
nav .item{color:var(--ink);border-left:none;padding:3px 9px;font-size:12.5px;letter-spacing:.04em}
nav .item .n{color:var(--ink2);min-width:34px}
nav .item .meta{color:var(--ink2);font:10px "Helvetica Neue",Arial,sans-serif}
nav .item:hover{background:var(--ink3)}
nav .item.sel{background:var(--ink);color:var(--lcd1)}nav .item.sel .n,nav .item.sel .meta{color:rgba(199,209,187,.7)}
nav .item.empty{color:rgba(28,37,28,.35)}
nav .item i{color:inherit!important;opacity:.45}
/* buttons in the editor: rubber pills like SONG / PAD / EFFECT */
.tabs{gap:8px;margin-bottom:14px}
.tabs button{padding:8px 16px}
button:not(.rb):not(.d-btn).on{color:var(--acc)}
.row{gap:12px;margin-bottom:12px}
.hint{color:var(--dim);font-size:11.5px}
.warn{color:var(--acc)}
/* grid = LCD glass */
.grid{background:linear-gradient(165deg,var(--lcd1),var(--lcd2) 55%,var(--lcd3));border:7px solid #111113;border-radius:7px;box-shadow:inset 0 0 18px rgba(0,0,0,.22),0 0 0 1px #2a2a2e;margin-top:10px}
.grid td,.grid th{border-right:1px solid var(--ink3);border-bottom:1px solid var(--ink3);height:21px;min-width:17px}
.grid th{background:transparent;color:var(--ink);font:600 11px ui-monospace,Menlo,monospace;letter-spacing:.03em;position:sticky;left:0;background:linear-gradient(90deg,var(--lcd1),var(--lcd2))}
.grid th:hover{color:#000}
.grid tr:first-child td{color:var(--ink2)!important;font:600 9px "Helvetica Neue",Arial,sans-serif}
.grid td.beat{border-left:2px solid rgba(28,37,28,.35)}
.grid td.on{background:var(--ink)}
.grid td.roll{background:repeating-linear-gradient(90deg,var(--ink) 0 3px,rgba(28,37,28,.35) 3px 5px)}
.grid td.flam{box-shadow:inset 3px 0 0 var(--ink)}
.grid td.on.flam{box-shadow:inset 2px 0 0 var(--lcd1)}
.grid td.cell:hover{outline:1px solid var(--ink);outline-offset:-1px}
.grid td.drag{outline:2px dashed var(--ink);outline-offset:-2px}
.grid td.cur{box-shadow:inset 0 0 0 2px var(--ink)}
.grid td.cur.on{box-shadow:inset 0 0 0 2px var(--ink),inset 0 0 0 3px var(--lcd1)}
.gridtools{gap:14px;margin:6px 0 4px}
.gridtools button.rb.round.sm{width:44px;height:44px}
/* kit table = LCD glass */
.kitwrap{background:linear-gradient(165deg,var(--lcd1),var(--lcd2) 55%,var(--lcd3));border:7px solid #111113;border-radius:7px;box-shadow:inset 0 0 18px rgba(0,0,0,.22),0 0 0 1px #2a2a2e;overflow:auto;max-height:70vh}
table.kit{color:var(--ink);font:12px ui-monospace,Menlo,monospace;width:100%}
table.kit th{background:linear-gradient(var(--lcd1),var(--lcd2));color:var(--ink2);font:700 9px "Helvetica Neue",Arial,sans-serif;letter-spacing:.1em;border-bottom:1px solid var(--ink3);text-transform:uppercase}
table.kit td{border-bottom:1px solid var(--ink3)}
table.kit tr:hover{background:var(--ink3)}
table.kit td.play{color:var(--ink)}
table.kit input,table.kit select{background:transparent;color:var(--ink);border:none;border-bottom:1px dotted var(--ink2);border-radius:0;box-shadow:none;font:12px ui-monospace,Menlo,monospace;padding:1px 2px}
table.kit input:disabled,table.kit select:disabled{opacity:.6}
/* song parts */
.chip{background:radial-gradient(120% 95% at 50% 25%,#6b6c71,#57585c 65%,#48494d);border:none;box-shadow:0 0 0 2px #1a1a1c,0 3px 5px rgba(0,0,0,.6),inset 0 1px 1px rgba(255,255,255,.2);color:#f2f2f2;border-radius:14px;padding:5px 10px 5px 12px}
.chip.cur{box-shadow:0 0 0 2px var(--blue),0 3px 5px rgba(0,0,0,.6)}
/* song parts = LCD glass, parts are monochrome cells, the playing part is inverse */
#sParts{background:linear-gradient(165deg,var(--lcd1),var(--lcd2) 55%,var(--lcd3));border:7px solid #111113;border-radius:7px;box-shadow:inset 0 0 18px rgba(0,0,0,.22),0 0 0 1px #2a2a2e;padding:8px;min-height:44px;margin-top:10px}
#sParts .chip{background:transparent;color:var(--ink);box-shadow:none;border:1.5px solid var(--ink);border-radius:3px;font:12px ui-monospace,Menlo,monospace;padding:3px 7px 3px 8px}
#sParts .chip b{font-weight:700}
#sParts .chip i{color:var(--ink2)}
#sParts .chip span{color:var(--ink2)}#sParts .chip span:hover{color:var(--ink)}
#sParts .chip.cur{background:var(--ink);color:var(--lcd1);box-shadow:none}
#sParts .chip.cur i,#sParts .chip.cur span{color:rgba(199,209,187,.75)}
#sParts .hint{color:var(--ink2)}
.chip span{color:#cfcfcf}
/* dialog & toast */
.modal .box{background:linear-gradient(170deg,var(--body1),var(--body2) 45%,var(--body3));border:none;border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.07)}
.modal h3{color:#e4e4e4;font:700 10px "Helvetica Neue",Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
.modal .mh b{font:700 12px "Helvetica Neue",Arial,sans-serif;letter-spacing:.14em}
.modal .bar{background:var(--well);box-shadow:inset 0 1px 2px #000}.modal .bar div{background:var(--blue)}
.modal label.chk{color:var(--fg);font:12px "Helvetica Neue",Arial,sans-serif;letter-spacing:0}
.toast{background:linear-gradient(var(--body1),var(--body3));border:none;box-shadow:0 8px 24px rgba(0,0,0,.7);color:var(--fg)}
section,nav{min-width:0}section{overflow:hidden}.grid{max-width:100%}

nav .item.queued{outline:2px dashed var(--ink);outline-offset:-3px;animation:lcdblink 1s steps(1) infinite}
nav .item.queued .meta::after{content:" · NEXT";font-weight:700}
@media (max-width:860px){main{grid-template-columns:1fr}}

/* TEK-660 wordmark in the toolbar */
.tb .brand .tek{font:900 21px/1 "Arial Black","Helvetica Neue",Arial,sans-serif;letter-spacing:.06em;color:#ececec}
.tb .brand .num{font:italic 800 21px/1 "Helvetica Neue",Arial,sans-serif;letter-spacing:.02em;color:#5fc6ea;margin-left:-8px}
.tb .brand .studio{margin-left:2px}

/* transport icons: drawn in one 20×20 grid so START / STOP / REC / RESET share scale and centre line */
.d-btn .ico{display:block;flex:none;width:1.75cqw;height:1.75cqw;fill:#f4f4f4}
.d-btn.wide .ico{width:2.05cqw;height:2.05cqw}
.d-btn.red .ico{width:1.7cqw;height:1.7cqw}

/* iPhone Safari: no text inflation, no wrapping inside the panel keys, no double-tap zoom or grey tap flash on them;
   ◀ ▶ are SVG, as text iOS draws them as blue emoji */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
.d-btn{white-space:nowrap;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}
.d-btn.round span{line-height:1.15}
.d-pad,.d-knob{-webkit-tap-highlight-color:transparent;-webkit-user-select:none;-webkit-touch-callout:none}
.d-btn.pill .ico{width:2cqw;height:2cqw}

/* phones: no page zoom (pinch is also blocked in app.js, iOS ignores user-scalable=no), and in landscape the docked
   panel is sized by the screen height so the whole machine fits on screen */
html{touch-action:manipulation}
@media (orientation:landscape) and (max-height:540px){
  header.tb{position:static}
  #device{padding:6px 8px}
  #device .d-fit{width:min(98vw,calc((100vh - 12px)*1.3024));width:min(98vw,calc((100dvh - 12px)*1.3024))}
  body.full #device .d-fit{width:min(98vw,calc(98vh*1.3024));width:min(98vw,calc(98dvh*1.3024))}
  body.full #devExit{top:6px;right:8px;transform:scale(.8);transform-origin:top right}
}

/* BOSS logo on the panel hidden (trademark of Roland): the markup stays, delete this rule to bring it back */
.d-logo .boss{display:none}

/* kit lock next to the kit menu (studio toolbar) */
.tb .lock{padding:0;width:30px;height:30px;flex:none;display:inline-flex;align-items:center;justify-content:center;color:#9aa3ad}
.tb .lock svg{width:15px;height:15px;display:block}
.tb .lock .i-shut,.tb .lock.on .i-open{display:none}
.tb .lock.on .i-shut{display:block}
.tb .lock.on{color:var(--acc)}
.tb .grp{flex-wrap:wrap}
.tb .kitpick{display:inline-flex;align-items:center;gap:5px}
/* "Dr. Rhythm …" sits at the right edge of the bezel, as on the machine (BOSS, when shown, stays at the left) */
.d-logo{right:6%}
.d-logo .drr{margin-left:auto}