/* ── Reset & tokens ─────────────────────────────────────────── */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0b0e;--s1:#131318;--s2:#19191f;--s3:#1f1f28;
  --b1:#1c1c24;--b2:#25252f;--b3:#32323e;
  --accent:#8cffff;--accent-bg:rgba(140,255,255,.07);
  --red:#f87171;--red-bg:rgba(248,113,113,.09);
  --green:#4ade80;--green-bg:rgba(74,222,128,.07);
  --amber:#fbbf24;--purple:#a78bfa;
  --txt:#d2d2d8;--txt2:#707078;--txt3:#38383f;
  --r:8px;--rs:5px;
}
body{background:var(--bg);color:var(--txt);font-family:'Segoe UI',system-ui,sans-serif;
  font-size:13px;height:100vh;display:flex;flex-direction:column;overflow:hidden}

/* ── Nav ────────────────────────────────────────────────────── */
#topbar{display:flex;align-items:center;gap:8px;padding:0 16px;height:40px;
  background:var(--s1);border-bottom:1px solid var(--b1);flex-shrink:0}
#topbar h1{font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.5px}
.topnav{display:flex;gap:2px;margin-left:8px}
.topnav a{color:var(--txt2);text-decoration:none;padding:4px 10px;border-radius:var(--rs);
  font-size:12px;font-weight:500;transition:all .12s}
.topnav a:hover{color:var(--txt);background:var(--accent-bg)}
.topnav a.active{color:var(--accent);background:var(--accent-bg)}

/* ── Transport ──────────────────────────────────────────────── */
#transport{display:flex;align-items:stretch;background:var(--s1);
  border-bottom:1px solid var(--b1);flex-shrink:0;height:46px}
.tg{display:flex;align-items:center;gap:6px;padding:0 14px;
  border-right:1px solid var(--b1)}
.tg:last-child{border-right:none}
.tg-actions{margin-left:auto}
.tg-label{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--txt3)}
.spin-val{font-size:20px;font-weight:700;color:var(--accent);min-width:40px;
  text-align:center;font-variant-numeric:tabular-nums;line-height:1}
.count-val{font-size:15px;font-weight:700;color:var(--accent);min-width:20px;text-align:center}
.spin-btn{background:var(--b1);border:1px solid var(--b2);color:var(--txt2);
  width:19px;height:19px;border-radius:3px;cursor:pointer;font-size:11px;
  display:flex;align-items:center;justify-content:center;transition:all .1s;padding:0}
.spin-btn:hover{background:var(--b2);color:var(--txt)}
.beats{display:flex;gap:4px;align-items:center}
.beat{width:8px;height:8px;border-radius:50%;background:var(--b2);
  transition:background .04s,box-shadow .04s}
.beat.on{background:var(--accent);box-shadow:0 0 5px rgba(140,255,255,.4)}
.beat.one.on{background:var(--red);box-shadow:0 0 5px rgba(248,113,113,.4)}
.t-btn{background:var(--b1);border:1px solid var(--b2);color:var(--txt2);
  padding:4px 11px;border-radius:var(--rs);cursor:pointer;font-size:11px;
  font-weight:600;transition:all .12s;white-space:nowrap}
.t-btn:hover{background:var(--b2);color:var(--txt)}
.t-btn.on{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}
.t-btn.export{border-color:rgba(74,222,128,.28);color:var(--green)}
.t-btn.export:hover{background:var(--green-bg)}
.t-btn.danger{border-color:rgba(248,113,113,.22);color:var(--red)}
.t-btn.danger:hover{background:var(--red-bg)}
.t-btn.tap{border-color:rgba(251,191,36,.3);color:var(--amber)}
.t-btn.tap:hover{background:rgba(251,191,36,.07)}
/* status strip */
#statusBar{background:#0a0a0c;border-bottom:1px solid var(--b1);
  padding:3px 14px;flex-shrink:0;display:flex;align-items:center;gap:12px}
#statusMsg{font-size:10px;color:var(--txt3);font-style:italic;flex:1}
.hk-list{display:flex;gap:8px;flex-shrink:0}
.hk{font-size:9px;color:var(--txt3);display:flex;align-items:center;gap:2px}
.hk kbd{background:var(--b1);border:1px solid var(--b2);border-radius:3px;
  padding:0 4px;font-size:8px;color:var(--txt2)}

/* ── Main workspace (loops on top, instruments fill below) ──── */
#workspace{display:flex;flex-direction:column;flex:1;min-height:0;gap:8px;padding:8px 12px 12px;overflow:hidden}

/* ── Loop row (full width, 6 across) ────────────────────────── */
#loopRow{flex-shrink:0}
#loopGrid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.slot{background:var(--s1);border:1px solid var(--b1);border-radius:var(--r);
  padding:9px 10px;display:flex;flex-direction:column;gap:5px;
  transition:border-color .18s,box-shadow .18s;position:relative}
.slot.recording{border-color:var(--red);box-shadow:0 0 12px rgba(248,113,113,.13)}
.slot.playing{border-color:var(--green)}
.slot.stopped{border-color:var(--b3)}
.slot.counting{border-color:var(--amber);box-shadow:0 0 8px rgba(251,191,36,.1)}
.slot-hdr{display:flex;align-items:center;justify-content:space-between;min-height:14px}
.slot-num{font-size:8px;font-weight:700;letter-spacing:.1em;color:var(--txt3);text-transform:uppercase}
.slot-key{font-family:'Courier New',monospace;font-size:8px;color:var(--accent);background:var(--bg);
  border:1px solid var(--b2);border-radius:3px;padding:0 4px;margin-left:3px;letter-spacing:0}
.slot-dur{font-size:9px;color:var(--txt3);font-variant-numeric:tabular-nums}
.slot-canvas{width:100%;height:52px;border-radius:3px;background:#0a0a0c;display:block;flex-shrink:0}
/* recording sweep bar (top edge of the card) */
.rec-bar{position:absolute;top:0;left:0;right:0;height:3px;background:rgba(248,113,113,.18);
  display:none;border-radius:8px 8px 0 0;overflow:hidden;z-index:3}
.slot.recording .rec-bar{display:block}
.rec-bar-fill{height:100%;width:0;background:var(--red);box-shadow:0 0 6px rgba(248,113,113,.7)}
/* blinking count-in number, top-left */
.rec-count{position:absolute;top:25px;left:11px;font-size:24px;font-weight:800;line-height:1;
  color:var(--red);display:none;z-index:4;pointer-events:none;text-shadow:0 1px 6px rgba(0,0,0,.7)}
.slot.counting .rec-count{display:block;animation:recblink .6s ease-in-out infinite}
@keyframes recblink{0%,100%{opacity:1}50%{opacity:.2}}
.slot-btns{display:grid;grid-template-columns:1fr 1fr;gap:3px}
.slot-btns .rec-btn{grid-column:1/-1}
.slt-btn{padding:4px 3px;border-radius:4px;border:none;cursor:pointer;font-size:10px;
  font-weight:600;display:flex;align-items:center;justify-content:center;
  gap:2px;transition:all .1s;white-space:nowrap}
.rec-btn{background:var(--red-bg);color:var(--red);border:1px solid rgba(248,113,113,.2)}
.rec-btn:hover{background:rgba(248,113,113,.15)}
.rec-btn.active{background:var(--red);color:#fff;border-color:var(--red);
  animation:rpulse 1s ease-in-out infinite}
@keyframes rpulse{0%,100%{opacity:1}50%{opacity:.55}}
.play-btn{background:var(--green-bg);color:var(--green);border:1px solid rgba(74,222,128,.18)}
.play-btn:hover:not(:disabled){background:rgba(74,222,128,.13)}
.play-btn:disabled{opacity:.2;cursor:default}
.clr-btn{background:var(--b1);color:var(--txt3);border:1px solid var(--b1)}
.clr-btn:hover:not(:disabled){color:var(--red);border-color:rgba(248,113,113,.3)}
.clr-btn:disabled{opacity:.15;cursor:default}
.smpl-btn{background:rgba(167,139,250,.07);color:var(--purple);border:1px solid rgba(167,139,250,.18);
  grid-column:1/-1;font-size:10px}
.smpl-btn:hover{background:rgba(167,139,250,.14)}
.slot-vol{display:flex;align-items:center;gap:4px}
.vol-lbl{font-size:8px;color:var(--txt3);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0}
.slot-nudge{display:flex;align-items:center;gap:4px;margin-top:4px}
.nudge-btn{flex:0 0 auto;width:20px;height:16px;border-radius:3px;border:1px solid var(--b2);
  background:var(--s2);color:var(--txt2);cursor:pointer;font-size:9px;line-height:1;padding:0;transition:all .1s}
.nudge-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.nudge-btn:disabled{opacity:.25;cursor:default}
.nudge-val{flex:1;text-align:center;font-size:9px;color:var(--txt2);font-variant-numeric:tabular-nums}
input[type=range].vslider{-webkit-appearance:none;appearance:none;flex:1;width:100%;height:3px;
  border-radius:2px;background:var(--b2);cursor:pointer;outline:none}
input[type=range].vslider::-webkit-slider-thumb{-webkit-appearance:none;width:11px;height:11px;
  border-radius:50%;background:var(--accent);cursor:pointer}
/* Ring */
.ring{position:absolute;top:6px;right:6px;display:none}
.ring.vis{display:block}
.ring .rbg{fill:none;stroke:var(--b2);stroke-width:2.5}
.ring .rfg{fill:none;stroke:var(--green);stroke-width:2.5;stroke-linecap:round;
  stroke-dasharray:47.1;stroke-dashoffset:47.1;
  transform:rotate(-90deg);transform-origin:50% 50%}
/* Master FX card */
#masterFX{flex:1;min-height:0;background:var(--s1);border:1px solid var(--b1);
  border-radius:var(--r);padding:14px;display:flex;flex-direction:column;justify-content:center}
.fx-hdr{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  color:var(--txt3);margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--b1)}
.fx-row{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.fx-row:last-child{margin-bottom:0}
.fx-lbl{font-size:9px;font-weight:700;color:var(--txt3);min-width:36px;
  text-transform:uppercase;letter-spacing:.05em}
.fx-val{font-size:9px;color:var(--accent);min-width:26px;text-align:right;
  font-variant-numeric:tabular-nums;font-weight:700}

/* ── Instruments row (fills width + remaining height) ───────── */
#instruments{flex:1;min-height:0;display:flex;gap:8px;overflow:hidden}
.icol{display:flex;flex-direction:column;gap:8px;min-height:0}
.icol.drums{width:440px;flex-shrink:0}
.icol.keys{flex:1;min-width:0}
.icol.side{width:250px;flex-shrink:0}
.rcard{background:var(--s1);border:1px solid var(--b1);border-radius:var(--r);
  padding:14px;display:flex;flex-direction:column;overflow:hidden}
.rcard.grow{flex:1;min-height:0}
.rcard-hdr{display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  color:var(--txt3);margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--b1)}
.rcard-hdr .sub{color:var(--b3);text-transform:none;letter-spacing:0;font-weight:400}
.rcard-hdr-actions{display:flex;align-items:center;gap:4px;margin-left:auto}

/* ── Drum pads ──────────────────────────────────────────────── */
#padView{flex:1;min-height:0;display:flex}
.drum-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:1fr;
  gap:8px;flex:1;min-height:0}
.dpad{border-radius:8px;background:var(--s2);color:var(--txt2);
  cursor:pointer;font-size:10px;font-weight:700;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;transition:all .08s;
  user-select:none;text-transform:uppercase;letter-spacing:.04em;outline:none;padding:0;
  border:1px solid var(--b2);border-left:4px solid var(--pc,var(--b3))}
.dpad .di{font-size:1.6rem;line-height:1}
.dpad .dk{font-size:7px;color:var(--txt3);background:var(--bg);
  padding:1px 4px;border-radius:2px;font-family:'Courier New',monospace}
.dpad:hover{background:var(--b2);color:var(--txt)}
.dpad:active,.dpad.hit{background:rgba(140,255,255,.1);border-color:var(--accent);
  color:var(--accent);transform:scale(.91)}
.drum-grid .dpad:nth-child(1){--pc:#f97316}
.drum-grid .dpad:nth-child(2){--pc:#fbbf24}
.drum-grid .dpad:nth-child(3){--pc:#60a5fa}
.drum-grid .dpad:nth-child(4){--pc:#34d399}
.drum-grid .dpad:nth-child(5){--pc:#f472b6}
.drum-grid .dpad:nth-child(6){--pc:#a78bfa}
.drum-grid .dpad:nth-child(7){--pc:#fb923c}
.drum-grid .dpad:nth-child(8){--pc:#e879f9}

/* ── Step sequencer ─────────────────────────────────────────── */
#seqView{overflow-x:auto;padding-bottom:2px}
.seq-grid{display:grid;gap:2px;width:max-content}
.seq-row{display:contents}
.seq-lbl{font-size:7px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;
  color:var(--txt3);display:flex;align-items:center;padding-right:6px;white-space:nowrap;
  min-width:38px}
.seq-step{position:relative;overflow:hidden;width:19px;height:19px;border-radius:2px;
  border:1px solid var(--b2);background:var(--b1);cursor:ns-resize;
  transition:border-color .06s;touch-action:none}
.seq-step:hover{border-color:var(--b3)}
.seq-step.on{border-color:var(--spc,var(--accent))}
.seq-fill{position:absolute;left:0;right:0;bottom:0;height:0;
  background:var(--spc,var(--accent));opacity:.85;transition:height .05s;pointer-events:none}
.seq-step.cur{box-shadow:inset 0 0 0 2px rgba(255,255,255,.45)}
.seq-beat-line{border-left:1px solid var(--b3)}

/* ── Premade beats bar (under the sequencer) ─────────────────── */
.beat-bar{display:flex;flex-wrap:wrap;align-items:center;gap:5px;margin-top:12px;
  padding-top:10px;border-top:1px solid var(--b1)}
.beat-lbl{font-size:8px;font-weight:700;letter-spacing:.1em;color:var(--txt3);
  text-transform:uppercase;margin-right:2px}
.beat-btn{background:var(--b1);border:1px solid var(--b2);color:var(--txt2);
  font-size:10px;font-weight:600;padding:4px 8px;border-radius:5px;cursor:pointer;
  transition:all .1s;white-space:nowrap}
.beat-btn.preset:hover{color:var(--accent);border-color:rgba(140,255,255,.35);background:rgba(140,255,255,.06)}
.beat-btn.save{color:var(--amber);border-color:rgba(251,191,36,.3)}
.beat-btn.save:hover{background:rgba(251,191,36,.12)}
.beat-sep{width:1px;height:18px;background:var(--b2);margin:0 3px}
.beat-fav{display:inline-flex;align-items:center}
.beat-btn.fav{color:var(--purple);border-color:rgba(167,139,250,.3);border-right:none;
  border-radius:5px 0 0 5px}
.beat-btn.fav:hover{background:rgba(167,139,250,.13)}
.beat-btn.fav-x{color:var(--txt3);border-color:rgba(167,139,250,.3);border-radius:0 5px 5px 0;
  padding:4px 5px;font-size:9px}
.beat-btn.fav-x:hover{color:var(--red);border-color:rgba(248,113,113,.4)}

/* ── Piano keyboard ─────────────────────────────────────────── */
.kbd-wrap{position:relative;height:104px;user-select:none;overflow:visible;flex-shrink:0;
  margin:4px auto 0;width:928px}
.pkey{position:absolute;bottom:0;cursor:pointer;border-radius:0 0 5px 5px;
  border:1px solid #161618;display:flex;align-items:flex-end;justify-content:center;
  padding-bottom:5px;transition:background .05s;font-size:9px;font-weight:700}
.pkey.white{width:60px;height:104px;background:#ccccd6;color:#888;z-index:1}
.pkey.black{width:34px;height:64px;background:#111115;color:#555;z-index:2;
  top:0;bottom:auto;border-color:var(--b2);padding-bottom:4px;font-size:8px}
.pkey.white:hover,.pkey.white.on{background:#8fa8c8}
.pkey.black:hover,.pkey.black.on{background:rgba(140,255,255,.22);color:var(--accent);
  border-color:var(--accent)}
.pkey.upper{background:#b8b8c8;color:#999} /* second octave - slightly dimmer */
.pkey.upper.on,.pkey.upper:hover{background:#7a90b0}

/* Synth controls */
.ctrl-section{margin-top:10px;padding-top:10px;border-top:1px solid var(--b1)}
.sect-label{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.09em;
  color:var(--txt3);margin-bottom:7px;display:block}
.ctrl-row{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.ibtn{padding:4px 8px;border-radius:4px;border:1px solid var(--b2);background:var(--s2);
  color:var(--txt3);cursor:pointer;font-size:10px;font-weight:600;transition:all .1s;white-space:nowrap}
.ibtn.on{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}
.ibtn:hover:not(.on){border-color:var(--b3);color:var(--txt2)}
.ibtn.guitar.on{border-color:var(--green);color:var(--green);background:var(--green-bg)}
.ctrl-val{font-size:11px;font-weight:700;color:var(--accent);min-width:26px;
  text-align:center;font-variant-numeric:tabular-nums}
.gvol-row{display:flex;align-items:center;gap:5px;margin-left:4px;padding-left:6px;
  border-left:1px solid var(--b2)}
.gvol-lbl{font-size:9px;color:var(--txt3)}
/* Compact horizontal ADSR (frees vertical space for the piano roll) */
.adsr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:4px}
.adsr-col{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:5px}
.adsr-lbl{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;
  color:var(--txt3);white-space:nowrap}
.adsr-val{font-size:10px;font-weight:700;color:var(--accent);text-align:right;min-width:30px;
  font-variant-numeric:tabular-nums}
.adsr-col .vslider{width:100%}
.sample-ctrl{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.sample-name{font-size:10px;color:var(--accent);overflow:hidden;text-overflow:ellipsis;
  max-width:160px;white-space:nowrap}

/* ── Piano roll (polyphonic step sequencer) ─────────────────── */
#rollView{overflow:auto;max-height:210px;margin:4px 0 2px}
#rollView::-webkit-scrollbar{width:6px;height:6px}
#rollView::-webkit-scrollbar-thumb{background:var(--b3);border-radius:3px}

/* ── Notation (live sheet-music read-out of the piano roll) ─────────────────── */
.sheet-wrap{background:#0c0c11;border:1px solid var(--b1);border-radius:6px;
  padding:6px 8px;margin-top:4px}
#sheetMusic{width:100%;height:auto;display:block}
.sm-line{stroke:#4a4a58;stroke-width:1}
.sm-bar{stroke:#5a5a6a;stroke-width:1}
.sm-bar.end{stroke-width:2.5}
.sm-brace{stroke:#5a5a6a;stroke-width:2.5;fill:none}
.sm-ledger{stroke:#6a6a7a;stroke-width:1.2}
.sm-note{fill:var(--purple)}
.sm-note.open{fill:none;stroke:var(--purple);stroke-width:1.7}
.sm-stem{stroke:var(--purple);stroke-width:1.4}
.sm-beam{stroke:var(--purple);stroke-width:2.8;stroke-linecap:butt}
.sm-beam2{stroke:var(--purple);stroke-width:2.4;stroke-linecap:butt}
.sm-flag{stroke:var(--purple);stroke-width:1.7;fill:none}
.sm-acc{fill:#cfd2dc;font-size:15px;font-family:"Segoe UI Symbol","Segoe UI Symbol",serif}
.sm-clef{fill:#cfd2dc;font-family:"Segoe UI Symbol","Segoe UI Historic",Symbola,serif}
.sm-text{fill:var(--txt2);font-size:10px;font-family:inherit}
.sm-cursor{stroke:#22c55e;stroke-width:1.5;opacity:0}

/* ── Roll mode: two-column card (roll left, voice controls right) ───────────── */
.rcard.roll-layout{display:grid;grid-template-columns:minmax(420px,460px) 1fr;
  grid-template-rows:auto 1fr;column-gap:18px;align-items:start}
.rcard.roll-layout > .rcard-hdr{grid-column:1 / -1}
.rcard.roll-layout > #rollView{grid-column:1;grid-row:2;max-height:none;min-height:0;
  align-self:stretch;margin:0}
.rcard.roll-layout > .synth-controls{grid-column:2;grid-row:2;min-height:0;
  overflow-y:auto;padding-right:4px}
/* the first control section's divider is redundant once it heads its own column */
.rcard.roll-layout > .synth-controls > .ctrl-section:first-child{margin-top:0;
  padding-top:0;border-top:none}
#pianoRoll{display:grid;width:max-content}
.proll-lbl{font-size:8px;color:var(--txt3);display:flex;align-items:center;justify-content:flex-end;
  padding-right:5px;white-space:nowrap;position:sticky;left:0;background:var(--s1);z-index:1}
.proll-lbl.sharp{opacity:.55}
.proll-cell{height:14px;border:1px solid var(--b1);background:var(--b1);cursor:pointer;
  transition:background .05s}
.proll-cell.sharp{background:#101015}
.proll-cell:hover{border-color:var(--b3)}
.proll-cell.on{background:var(--purple);border-color:var(--purple)}
.proll-cell.cur{box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}
.proll-beat{border-left:1px solid var(--b3)}

/* ── Per-loop EQ ─────────────────────────────────────────────── */
.eq-btn{background:rgba(140,255,255,.06);color:var(--accent);border:1px solid rgba(140,255,255,.2);font-size:10px}
.eq-btn:hover{background:rgba(140,255,255,.13)}
.studio-btn{background:rgba(140,255,255,.05);color:var(--accent);border:1px solid rgba(140,255,255,.18);font-size:10px}
.studio-btn:hover:not(:disabled){background:rgba(140,255,255,.13)}
.studio-btn:disabled{opacity:.3;cursor:not-allowed;color:var(--txt3);border-color:var(--b2)}
#loopeq-modal{position:fixed;inset:0;background:rgba(0,0,0,.78);z-index:500;display:none;
  align-items:center;justify-content:center;padding:20px}
#loopeq-modal.open{display:flex}
#loopeq-panel{background:#111;border:1px solid #2a2a2a;border-radius:10px;width:100%;max-width:760px;
  box-shadow:0 8px 40px rgba(0,0,0,.6)}
.loopeq-body{padding:14px}
#loopeq-canvas{width:100%;height:250px;display:block;background:#0a0a0c;border-radius:8px;border:1px solid var(--b1)}
#loopeq-readout{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-top:10px}
.eqr-col{display:flex;flex-direction:column;align-items:center;gap:1px;font-size:9px;font-variant-numeric:tabular-nums}
.eqr-ic{width:18px;height:18px;margin-bottom:1px}
.eqr-f{font-weight:700}
.eqr-g{opacity:.9}
.eqr-q{opacity:.55}
.loopeq-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:10px}

/* ── Mic card ───────────────────────────────────────────────── */
#micBar{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:14px;background:var(--s1);border:1px solid var(--b1);border-radius:var(--r);
  flex:1;min-height:0}
.mic-btn{width:66px;height:66px;border-radius:50%;border:2px solid var(--b2);
  background:var(--s2);color:var(--txt3);font-size:1.9rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .18s}
.mic-btn:hover{border-color:var(--red);color:var(--red)}
.mic-btn.on{border-color:var(--red);background:var(--red-bg);color:var(--red);
  box-shadow:0 0 12px rgba(248,113,113,.18)}
.mic-info{display:flex;flex-direction:column;gap:6px;align-items:center}
.mic-stat{font-size:10px;color:var(--txt3);text-align:center}
.mic-meter{width:140px;height:4px;background:var(--b2);border-radius:2px;overflow:hidden}
.mic-fill{height:100%;background:var(--green);width:0%;border-radius:2px;transition:width .04s}
/* Autotune panel */
.at-panel{display:flex;flex-direction:column;gap:7px;width:100%;margin-top:6px;
  padding-top:12px;border-top:1px solid var(--b1)}
.at-row{display:flex;align-items:center;gap:6px}
.at-sel{flex:1;background:var(--s2);color:var(--txt);border:1px solid var(--b2);
  border-radius:5px;padding:4px 6px;font-size:11px;font-family:inherit;cursor:pointer;outline:none}
.at-sel:focus{border-color:var(--accent)}
#atBtn.on{border-color:var(--magenta);color:var(--magenta);background:rgba(244,114,182,.08)}

/* ── Help modal ───────────────────────────────────────────────── */
#help-btn{margin-left:auto;background:none;border:1px solid var(--b2);color:var(--accent);
  padding:4px 11px;border-radius:5px;cursor:pointer;font-size:13px;font-weight:700;transition:border-color .12s}
#help-btn:hover{border-color:var(--accent)}
#help-modal{position:fixed;inset:0;background:rgba(0,0,0,.78);z-index:500;display:none;
  align-items:center;justify-content:center;padding:20px}
#help-modal.open{display:flex}
#help-panel{background:#111;border:1px solid #2a2a2a;border-radius:10px;width:100%;max-width:720px;
  max-height:88vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.6)}
.help-hdr{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;
  border-bottom:1px solid #1e1e1e;flex-shrink:0;background:#131313}
.help-hdr-title{font-size:15px;font-weight:600;color:var(--accent);letter-spacing:.4px}
.help-hdr-sub{font-size:11px;color:#444;margin-top:1px}
.help-close{background:none;border:none;color:#555;font-size:22px;cursor:pointer;padding:0 2px;line-height:1;transition:color .1s}
.help-close:hover{color:#ccc}
.help-body{overflow-y:auto;padding:18px 22px;flex:1}
.help-body::-webkit-scrollbar{width:5px}
.help-body::-webkit-scrollbar-thumb{background:#2a2a2a;border-radius:3px}
.help-section{margin-bottom:24px}
.help-section:last-child{margin-bottom:0}
.help-section-title{font-size:11px;font-weight:700;color:var(--accent);letter-spacing:1px;
  text-transform:uppercase;margin-bottom:9px;padding-bottom:5px;border-bottom:1px solid #1d1d1d}
.help-table{width:100%;border-collapse:collapse;font-size:12px}
.help-table td{padding:5px 8px;color:#aaa;border-bottom:1px solid #0f0f0f;vertical-align:top;line-height:1.5}
.help-table td:first-child{white-space:nowrap;color:#ddd;min-width:170px}
.help-modal kbd,#help-panel kbd{display:inline-block;background:#1c1c1c;border:1px solid #383838;
  border-bottom-width:2px;border-radius:3px;padding:1px 5px;font-family:'Courier New',monospace;
  font-size:10px;color:#ccc;white-space:nowrap;line-height:1.4}