:root{
  --bg:#f3f4f7; --panel:#ffffff; --panel2:#eef0f5; --ink:#15171d; --muted:#6b7180; --line:#dfe2ea;
  --accent:#6a55ff; --accent2:#e8e4ff; --accent-ink:#fff; --danger:#e5484d; --work:#e6e8ee; --shadow:0 8px 30px rgba(20,22,40,.18);
  --pos:#18a374; --neg:#ff5a8a; --tb:64px; --top:52px; --radius:14px;
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px);
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#101116; --panel:#1a1c24; --panel2:#242733; --ink:#f1f2f6; --muted:#9097a8; --line:#2c2f3c;
  --accent:#8b7bff; --accent2:#2b2650; --work:#15161c; --shadow:0 8px 30px rgba(0,0,0,.5);
}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font:15px/1.35 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;overscroll-behavior:none;-webkit-user-select:none;user-select:none}
#app{display:grid;grid-template-columns:minmax(0,1fr);width:100%;grid-template-rows:calc(var(--top) + var(--sat)) minmax(0,1fr) auto;height:100dvh;height:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;touch-action:manipulation}
svg{display:block}
[hidden]{display:none!important}
.ic{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
/* top bar */
#topbar{display:flex;align-items:center;gap:6px;padding:var(--sat) 8px 0;background:var(--panel);border-bottom:1px solid var(--line);z-index:5}
#projName{flex:1;min-width:0;text-align:center;font-weight:600;background:transparent;border:0;color:var(--ink);padding:10px;border-radius:10px;font-size:15px;-webkit-user-select:text;user-select:text}
#projName:focus{outline:2px solid var(--accent);background:var(--panel2)}
.ib{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;flex:none}
.ib.sm{width:38px;height:38px}
.ib:active,.btn:active{transform:scale(.95)}
.ib:disabled{opacity:.3}
.ib.on{background:var(--accent2);color:var(--accent)}
.btn{min-height:44px;padding:0 16px;border-radius:12px;background:var(--panel2);font-weight:600;display:inline-flex;gap:8px;align-items:center;justify-content:center}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.big{min-height:54px;padding:0 34px;font-size:17px;border-radius:16px}
.btn.danger{color:var(--danger)}
.btn.sm{min-height:36px;padding:0 12px;font-size:13px;border-radius:10px}
.btn.on{background:var(--accent2);color:var(--accent);box-shadow:inset 0 0 0 1.5px var(--accent)}
/* workspace */
#workspace{position:relative;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto;min-height:0;min-width:0}
#viewport.molding{box-shadow:inset 0 0 0 3px #ff8a3d}
#viewport{position:relative;overflow:hidden;background:var(--work);touch-action:none;min-height:0;cursor:default}
#stage,#overlay{position:absolute;inset:0;width:100%;height:100%}
#overlay{pointer-events:none}
#textEdit{position:absolute;margin:0;padding:0;border:0;outline:0;resize:none;background:transparent;caret-color:var(--accent);white-space:pre;overflow:hidden;transform-origin:50% 50%;-webkit-user-select:text;user-select:text;z-index:3}
#textEdit::selection{background:rgba(106,85,255,.35)}
#moldBar,#panelBar{position:absolute;left:50%;bottom:58px;transform:translateX(-50%);display:flex;gap:6px;align-items:center;background:var(--panel);border-radius:16px;box-shadow:var(--shadow);padding:6px;z-index:3;border:2px solid #ff8a3d}
#moldBar .btn,#panelBar .btn{padding:8px 11px;white-space:nowrap}
#moldBar .btn.on{background:#ff8a3d;color:#fff;border-color:#ff8a3d}
#panelBar{border-color:var(--accent,#6a55ff)}
#panelBar .barLbl{font-weight:700;font-size:13px;padding:0 6px}
#zoomBar{position:absolute;left:10px;bottom:10px;display:flex;align-items:center;background:var(--panel);border-radius:14px;box-shadow:var(--shadow);padding:2px;z-index:2}
.zoomPct{min-width:54px;height:38px;font-weight:600;font-size:13px;font-variant-numeric:tabular-nums}
#empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:24px;pointer-events:none;z-index:1}
#empty>*{pointer-events:auto}
#empty h1{margin:0;font-size:30px;letter-spacing:-.02em;color:var(--muted)}
#empty p{margin:0 0 6px;color:var(--muted);max-width:30ch}
#empty .row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
#hint{position:absolute;top:10px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:7px 14px;border-radius:99px;font-size:13px;font-weight:600;z-index:2;pointer-events:none;white-space:nowrap;max-width:92%;overflow:hidden;text-overflow:ellipsis}
#actionPill{position:absolute;display:flex;gap:2px;background:var(--panel);border-radius:14px;box-shadow:var(--shadow);padding:2px;z-index:4;transform:translate(-50%,0)}
#actionPill .ib{width:42px;height:42px}
/* sheet (bottom on mobile, side panel on desktop) */
#sheet{background:var(--panel);border-top:1px solid var(--line);border-radius:18px 18px 0 0;max-height:38vh;max-height:38dvh;display:flex;flex-direction:column;box-shadow:0 -8px 30px rgba(0,0,0,.12);z-index:6;min-height:0}
#sheet[hidden]{display:none}
.sheetHead{display:flex;align-items:center;gap:6px;padding:6px 8px 0 14px;flex:none}
.sheetHead h3{margin:0;font-size:15px;flex:1;white-space:nowrap}
.grab{display:block;width:100%;height:20px;flex:none;padding:0}
.grab i{display:block;width:44px;height:5px;border-radius:4px;background:var(--line);margin:8px auto 0}
#sheet.collapsed .tabs,#sheet.collapsed .sheetBody{display:none}
#sheet.collapsed{max-height:none}
#sheet.full{position:absolute;inset:0;max-height:none;border-radius:0;border-top:0;z-index:9}
#sheet.full .grab{display:none}
.tracePrev{height:34vh;min-height:150px;border-radius:12px;overflow:hidden;background:repeating-conic-gradient(#d9dbe3 0 25%,#fff 0 50%) 0 0/16px 16px;flex-shrink:0}
#sheet.full .tracePrev{height:42vh}
.tapTitle{cursor:pointer}
@media (min-width:900px){.fullBtn{display:none}}
.tabs{display:flex;gap:6px;padding:8px 12px 2px;overflow-x:auto;scrollbar-width:none;flex:none}
.tabs::-webkit-scrollbar{display:none}
.tabs.inHead{padding:0;flex:1;min-width:0;justify-content:flex-end}
.sheetHead h3{flex:none!important}
.sheetHead{padding-top:8px}
.tab{padding:0 14px;min-height:34px;border-radius:99px;background:var(--panel2);font-weight:600;font-size:13.5px;white-space:nowrap;flex:none}
.tab.on{background:var(--accent);color:var(--accent-ink)}
.sheetBody>*{flex-shrink:0}
.sheetBody{overflow-y:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y;padding:6px 14px 40px;display:flex;flex-direction:column;gap:10px;min-height:0;overscroll-behavior:contain}
.sec{font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-top:4px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.row.nw{flex-wrap:nowrap}
.grow{flex:1;min-width:0}
.hintTxt{font-size:12.5px;color:var(--muted)}
/* slider */
.sl{display:grid;grid-template-columns:92px 1fr 62px;align-items:center;gap:8px;min-height:36px}
.sl label{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sl input[type=range]{width:100%;height:32px;margin:0;accent-color:var(--accent);touch-action:pan-y}
input.num{width:100%;height:34px;border:1px solid var(--line);background:var(--panel2);border-radius:9px;color:var(--ink);text-align:center;font:inherit;font-size:13px;-webkit-user-select:text;user-select:text;min-width:0}
/* segmented */
.seg{display:flex;background:var(--panel2);border-radius:12px;padding:3px;gap:2px}
.seg button{flex:1;min-height:36px;border-radius:9px;font-weight:600;font-size:13px;padding:0 8px;white-space:nowrap}
.seg button.on{background:var(--panel);box-shadow:0 1px 4px rgba(0,0,0,.18);color:var(--accent)}
.chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 0}
.chips::-webkit-scrollbar{display:none}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:8px}
.cell{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:70px;background:var(--panel2);border-radius:12px;font-size:12px;font-weight:600;padding:6px}
.cell:active{transform:scale(.96)}
.cell.on{box-shadow:inset 0 0 0 2px var(--accent);color:var(--accent)}
.cell svg.ic{width:28px;height:28px}
.sw{width:34px;height:34px;border-radius:10px;border:1px solid rgba(128,128,128,.4);flex:none;background-clip:padding-box;position:relative;overflow:hidden}
.sw.big{width:44px;height:44px;border-radius:12px}
.sw::before{content:"";position:absolute;inset:0;z-index:-1;background:conic-gradient(#ccc 25%,#fff 0 50%,#ccc 0 75%,#fff 0) 0 0/10px 10px}
.sw i{position:absolute;inset:0}
.colorRow{display:flex;align-items:center;gap:10px;min-height:44px;background:var(--panel2);border-radius:12px;padding:5px 10px;width:100%;text-align:left}
.colorRow span{flex:1;font-size:13.5px;font-weight:600}
.colorRow em{font-style:normal;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
.switch{display:flex;align-items:center;justify-content:space-between;min-height:42px;gap:10px;font-size:14px;font-weight:600;width:100%;text-align:left}
.switch i{width:46px;height:28px;border-radius:99px;background:var(--line);position:relative;flex:none;transition:.15s}
.switch i::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.15s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.switch.on i{background:var(--accent)} .switch.on i::after{left:21px}
/* toolbar */
#toolbar{min-width:0;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;background:var(--panel);border-top:1px solid var(--line);padding:6px 6px calc(16px + var(--sab));z-index:7;justify-content:flex-start}
#toolbar::-webkit-scrollbar{display:none}
.tb{flex:none;min-width:64px;height:54px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;font-weight:600;border-radius:12px;color:var(--ink);padding:0 6px}
.tb .ic{width:23px;height:23px}
.tb.on{background:var(--accent2);color:var(--accent)}
.tb.sep{min-width:1px;width:1px;height:30px;align-self:center;background:var(--line);margin:0 4px;padding:0;pointer-events:none}
.tb:active{transform:scale(.94)}
/* font picker */
.fontList{display:flex;flex-direction:column;gap:6px}
.fontItem{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:56px;padding:6px 12px;border-radius:12px;background:var(--panel2);text-align:left}
.fontItem.on{box-shadow:inset 0 0 0 2px var(--accent)}
.fontItem .pv{font-size:24px;line-height:1.1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.fontItem small{color:var(--muted);font-size:11px;flex:none}
.search{width:100%;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--panel2);color:var(--ink);padding:0 14px;font:inherit;-webkit-user-select:text;user-select:text}
/* color picker */
.sv{position:relative;height:150px;border-radius:12px;touch-action:none;overflow:hidden;flex:none}
.sv i{position:absolute;width:22px;height:22px;margin:-11px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.5),0 2px 6px rgba(0,0,0,.4);pointer-events:none}
.bar{position:relative;height:26px;border-radius:13px;touch-action:none;flex:none}
.bar i{position:absolute;top:50%;width:26px;height:26px;margin:-13px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.5);pointer-events:none}
.checker{background:conic-gradient(#ccc 25%,#fff 0 50%,#ccc 0 75%,#fff 0) 0 0/12px 12px}
.inputs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.inputs label{display:flex;flex-direction:column;gap:2px;font-size:11px;color:var(--muted);font-weight:700}
.inputs input{height:38px;border-radius:9px;border:1px solid var(--line);background:var(--panel2);color:var(--ink);text-align:center;font:inherit;min-width:0;-webkit-user-select:text;user-select:text}
.swatches{display:flex;flex-wrap:wrap;gap:7px}
.stopBar{height:34px;border-radius:10px;position:relative;touch-action:none;margin:10px 8px 14px}
.stopBar b{position:absolute;top:-8px;width:20px;height:50px;margin-left:-10px;border-radius:8px;border:3px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.5),0 2px 6px rgba(0,0,0,.3)}
.stopBar b.on{border-color:var(--accent)}
/* layers */
.layer{display:flex;align-items:center;gap:6px;min-height:50px;padding:2px 6px;border-radius:12px;background:var(--panel2)}
.layer.on{box-shadow:inset 0 0 0 2px var(--accent)}
.layer .nm{flex:1;min-width:0;font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:transparent;border:0;color:var(--ink);padding:8px 4px;-webkit-user-select:text;user-select:text;text-align:left}
.layer .ib{width:38px;height:38px}
.layer .ic{width:19px;height:19px}
.layer .thumb{width:34px;height:34px;border-radius:8px;background:var(--panel);display:grid;place-items:center;flex:none;font-size:11px;font-weight:700;color:var(--muted)}
.layer.drop{box-shadow:0 -3px 0 var(--accent)}
/* characters */
.charStrip{display:flex;gap:6px;overflow-x:auto;padding:2px 0 6px;scrollbar-width:none;flex:none}
.charStrip::-webkit-scrollbar{display:none}
.chr{min-width:42px;height:44px;border-radius:12px;background:var(--panel2);font-size:22px;font-weight:700;flex:none;display:grid;place-items:center;position:relative}
.chr.on{background:var(--accent);color:var(--accent-ink)}
.chr.neg::after{content:"";position:absolute;inset:4px;border:2px dashed var(--neg);border-radius:9px}
.chr.mod::before{content:"";position:absolute;top:5px;right:5px;width:6px;height:6px;border-radius:50%;background:var(--pos)}
.chr.dis{opacity:.4}
/* gap chips */
.gapChip{min-width:96px;padding:6px 10px;border-radius:12px;background:var(--panel2);text-align:left;flex:none;font-size:12px;color:var(--muted)}
.gapChip b{display:block;font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums}
.gapChip.on{box-shadow:inset 0 0 0 2px var(--neg)}
.meter{height:10px;border-radius:6px;background:var(--panel2);overflow:hidden}
.meter i{display:block;height:100%;background:linear-gradient(90deg,var(--neg),var(--pos))}
/* toast / modal / coach / menu */
#toast{position:fixed;left:50%;bottom:calc(var(--tb) + 22px + var(--sab));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:99px;font-weight:600;font-size:13.5px;z-index:50;pointer-events:none;box-shadow:var(--shadow)}
#modal{position:fixed;inset:0;background:rgba(10,10,20,.55);z-index:40;display:flex;align-items:flex-end;justify-content:center}
#modal[hidden],#coach[hidden],#ctxMenu[hidden],#toast[hidden]{display:none}
.mbox{background:var(--panel);width:100%;max-width:560px;border-radius:20px 20px 0 0;max-height:90vh;overflow:auto;padding:14px 16px calc(18px + var(--sab));display:flex;flex-direction:column;gap:12px}
.mbox.full{max-width:none;height:100%;max-height:none;border-radius:0}
.mhead{display:flex;align-items:center;gap:8px}.mhead h3{margin:0;flex:1}
#coach{position:fixed;left:10px;right:10px;top:calc(var(--top) + var(--sat) + 8px);z-index:30;background:var(--ink);color:var(--bg);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);max-width:460px;margin:0 auto}
#coach b{display:block;margin-bottom:2px}#coach p{margin:0 0 8px;font-size:13.5px;opacity:.9}
#coach .row{justify-content:space-between}#coach .btn{min-height:36px;background:rgba(128,128,128,.3);color:inherit}
#coach .dots{display:flex;gap:4px}#coach .dots i{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.3}#coach .dots i.on{opacity:1}
#ctxMenu{position:fixed;z-index:45;background:var(--panel);border-radius:14px;box-shadow:var(--shadow);padding:6px;min-width:190px}
#ctxMenu button{display:flex;gap:10px;align-items:center;width:100%;min-height:40px;padding:0 12px;border-radius:9px;text-align:left;font-weight:500}
#ctxMenu button:hover{background:var(--panel2)}
.prevBox{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.prevBox .pv{border-radius:14px;padding:18px;display:grid;place-items:center;min-height:130px;border:1px solid var(--line)}
.prevBox img{max-width:100%;max-height:150px}
.prevSizes{display:flex;gap:16px;align-items:flex-end;justify-content:center;padding:10px;border-radius:14px;border:1px solid var(--line)}
/* desktop: sheet becomes a docked side panel, same code path */
@media (min-width:900px){
  :root{--tb:60px}
  #workspace{grid-template-rows:none;grid-template-columns:minmax(0,1fr) auto}
  #sheet{width:360px;max-height:none;border-radius:0;border-top:0;border-left:1px solid var(--line);box-shadow:none}
  .grab{display:none}
  #toolbar{justify-content:center}
  .tb{min-width:72px}
}

.row.tight{gap:6px}.row.tight .btn{padding:0 10px;gap:5px}.row.tight .ic{width:18px;height:18px}

.stickyHead{position:sticky;top:-6px;z-index:2;background:var(--panel);padding:6px 0 8px;display:flex;flex-direction:column;gap:8px;margin:-6px 0 0}
#sheet[data-sheet=font]{max-height:52vh;max-height:52dvh}
@media (min-width:900px){#sheet[data-sheet=font]{max-height:none}}

.search.inHead{flex:1;min-width:0;width:auto;height:38px;margin-left:6px}

.bodyWrap{position:relative;display:flex;flex-direction:column;flex:1 1 auto;min-height:0}
.bodyWrap>.sheetBody{flex:1 1 auto;padding-right:26px}
.sbar{position:absolute;top:4px;bottom:4px;right:0;width:24px;display:none;touch-action:none;z-index:5;cursor:pointer}
.sbar.on{display:block}
.sbar i{position:absolute;right:6px;top:0;width:6px;border-radius:6px;background:var(--muted);opacity:.55;transition:opacity .15s,width .15s,right .15s}
.sbar.drag i,.sbar:hover i{opacity:.95;width:9px;right:5px}
#sheet.collapsed .bodyWrap{display:none}

.ib.pipette{width:40px;height:40px;margin-left:2px}

.chr.joined::before{content:"";position:absolute;top:5px;left:5px;width:7px;height:7px;border-radius:2px;background:#18a374}