/* Base reset */
:root{color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;padding:0;font:14px -apple-system,BlinkMacSystemFont,sans-serif;background:#faf9f5;color:#141413}
img{max-width:100%}
[hidden]:not([hidden=until-found i]){display:none!important}

/* Layout: one-screen workshop — 3D stage on the left, calculation panel on the right (stacks below on phones) */
:root{
  --bg:#e9ece5; --panel:#fafbf7; --ink:#1d2820; --muted:#5d6a60; --line:#d3d9cf; --soft:#eef1ea;
  --accent:#2d6a43; --accent-ink:#ffffff; --wood:#a8713a; --warn:#b4471c; --ok:#2d6a43;
  --sky:#dce6e1; --ground:#c4d0b2; --grid:#93a389;
  --f-display:"Barlow Condensed","Arial Narrow",sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --r:8px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#121814; --panel:#18201b; --ink:#e4ebe4; --muted:#97a49a; --line:#2b362e; --soft:#1f2922;
  --accent:#6dbb88; --accent-ink:#0e1a12; --wood:#c58a4f; --warn:#e8794a; --ok:#6dbb88;
  --sky:#1a2420; --ground:#26301f; --grid:#46553f; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121814; --panel:#18201b; --ink:#e4ebe4; --muted:#97a49a; --line:#2b362e; --soft:#1f2922;
  --accent:#6dbb88; --accent-ink:#0e1a12; --wood:#c58a4f; --warn:#e8794a; --ok:#6dbb88;
  --sky:#1a2420; --ground:#26301f; --grid:#46553f; color-scheme:dark}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:14px;line-height:1.45}
*{box-sizing:border-box}
button,input,select{font:inherit;color:inherit}
#app{height:100%;display:flex;flex-direction:column;padding-inline:16px;padding-block:10px;gap:10px}
.top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand svg{width:34px;height:34px;flex:none}
.brand b{font-family:var(--f-display);font-size:24px;font-weight:700;letter-spacing:.01em;line-height:1;display:block}
.brand span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
#dname{border:1px solid var(--line);background:var(--panel);border-radius:var(--r);padding:6px 10px;min-width:0;width:200px}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.btn,button{border:1px solid var(--line);background:var(--panel);border-radius:var(--r);padding:6px 11px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover,button:hover{border-color:var(--muted)}
button:disabled{opacity:.45;cursor:default}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:500}
button.danger{color:var(--warn)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
main{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:10px}
.stage{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--sky);min-height:0}
#vp{position:absolute;inset:0}
#vp canvas{display:block;touch-action:none}
#labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}
#labels span{position:absolute;transform:translate(-50%,-50%);font:500 11px var(--f-mono);background:var(--panel);color:var(--ink);border:1px solid var(--line);padding:0 4px;border-radius:4px;opacity:.9;white-space:nowrap}
#labels span.sel{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.tools{position:absolute;left:8px;top:8px;right:8px;display:flex;flex-wrap:wrap;gap:6px;pointer-events:none}
.tools>*{pointer-events:auto}
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.seg button{border:0;border-radius:0;padding:5px 9px;background:transparent}
.seg button+button{border-left:1px solid var(--line)}
.seg button.on{background:var(--accent);color:var(--accent-ink)}
.seg button.cur{box-shadow:inset 0 -3px 0 var(--accent);font-weight:600}
.seg .lbl{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:6px 4px 0 8px}
.seg input,.seg select,.tools .seg input[type=number]{border:0;background:transparent;width:64px;padding:4px 6px;font-family:var(--f-mono);font-size:12px}
.seg select{width:auto}
kbd{font:500 10px var(--f-mono);border:1px solid var(--line);border-radius:3px;padding:0 3px;color:var(--muted);margin-left:2px}
.seg button.on kbd{color:inherit;border-color:currentColor}
#readout{position:absolute;pointer-events:none;font:500 12px var(--f-mono);background:var(--ink);color:var(--panel);padding:2px 6px;border-radius:4px;white-space:nowrap;transform:translate(14px,14px)}
#hint{position:absolute;left:8px;bottom:8px;right:8px;font-size:12px;color:var(--muted);pointer-events:none;text-shadow:0 0 3px var(--sky)}
.side{display:flex;flex-direction:column;min-height:0;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
.sum{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.sum div{padding:9px 10px;border-right:1px solid var(--line)}
.sum div:last-child{border-right:0}
.sum b{display:block;font:600 22px/1 var(--f-display);font-variant-numeric:tabular-nums}
.sum span{font-size:10px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.tabs{display:flex;border-bottom:1px solid var(--line)}
.tabs button{flex:1;border:0;border-radius:0;background:transparent;padding:9px 4px;justify-content:center;color:var(--muted);border-bottom:2px solid transparent}
.tabs button.on{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}
#panel>*{flex:none}
#panel{overflow:auto;padding:14px;flex:1;min-height:0;display:flex;flex-direction:column;gap:14px}
h3{font-family:var(--f-display);font-size:19px;font-weight:600;margin:0;letter-spacing:.01em;text-wrap:balance}
h4{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 6px;font-weight:600}
p{margin:0}
.muted{color:var(--muted)}
.small{font-size:12px}
.grid3{display:grid;grid-template-columns:auto repeat(3,1fr);gap:6px;align-items:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px 10px}
.field{display:flex;flex-direction:column;gap:3px;min-width:0}
.field label,.grid3 .h{font-size:11px;color:var(--muted)}
.field small{font-size:11px;color:var(--muted)}
input[type=number],input[type=text],select,textarea{border:1px solid var(--line);background:var(--bg);border-radius:6px;padding:5px 7px;min-width:0;width:100%}
input[type=number]{font-family:var(--f-mono);font-size:13px}
.row{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
table{border-collapse:collapse;width:100%;font-size:13px}
th{font-size:10px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);text-align:left;font-weight:600;padding:4px 6px;border-bottom:1px solid var(--line)}
td{padding:5px 6px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
td.n,th.n{text-align:right}
td.mono,.mono{font-family:var(--f-mono);font-size:12px}
tr.click{cursor:pointer}
tr.click:hover td{background:var(--soft)}
.tbl{overflow-x:auto}
.calc{border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.calc div{display:flex;justify-content:space-between;padding:5px 10px;font-family:var(--f-mono);font-size:12px;border-bottom:1px solid var(--line)}
.calc div:last-child{border-bottom:0;background:var(--soft);font-weight:600;font-size:14px}
.calc div span:first-child{font-family:var(--f-body);color:var(--muted)}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;border:1px solid var(--line);border-radius:999px;padding:1px 8px 1px 5px;background:var(--panel)}
.chip i{width:10px;height:10px;border-radius:50%;display:inline-block}
.legend{display:flex;flex-wrap:wrap;gap:6px}
.warn{color:var(--warn);font-size:12px;border:1px solid var(--warn);border-radius:var(--r);padding:7px 10px}
.stockcard{border:1px solid var(--line);border-radius:var(--r);padding:10px;display:flex;flex-direction:column;gap:6px}
.stockcard .big{font:600 20px var(--f-display)}
.bins{display:flex;flex-direction:column;gap:4px}
.bin{display:flex;height:20px;border-radius:4px;overflow:hidden;background:repeating-linear-gradient(45deg,var(--soft) 0 4px,var(--line) 4px 6px);font:500 10px var(--f-mono)}
.bin span{background:var(--wood);color:#fff;display:flex;align-items:center;padding:0 4px;border-right:2px solid var(--panel);overflow:hidden;white-space:nowrap}
.help li{margin-bottom:4px}
.help{padding-left:18px;margin:0}
#modal{position:fixed;inset:0;background:rgba(10,16,12,.5);display:flex;align-items:center;justify-content:center;padding:16px;z-index:20}
#modal .box{background:var(--panel);border-radius:12px;border:1px solid var(--line);max-width:760px;width:100%;max-height:90%;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:14px}
.tplgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.tpl{border:1px solid var(--line);border-radius:var(--r);padding:12px;text-align:left;flex-direction:column;align-items:flex-start;white-space:normal;gap:4px;background:var(--bg)}
.tpl b{font-family:var(--f-display);font-size:18px;font-weight:600}
.tpl span{font-size:12px;color:var(--muted)}
textarea{font-family:var(--f-mono);font-size:12px;height:240px}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--panel);padding:8px 14px;border-radius:8px;font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:30}
#toast.show{opacity:1}
#toast.act{pointer-events:auto;display:flex;align-items:center;gap:12px}
#toast button{background:transparent;border-color:currentColor;color:inherit;padding:3px 10px;font-weight:600}
.libgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.dcard{border:1px solid var(--line);border-radius:var(--r);background:var(--bg);display:flex;flex-direction:column;overflow:hidden}
.dcard.cur{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.dcard .row{padding:0 10px 10px;gap:6px}
.dcard .row button{flex:1;justify-content:center;padding:5px 6px}
.dopen{border:0;border-radius:0;background:transparent;padding:0 0 8px;flex-direction:column;align-items:stretch;gap:3px;text-align:left;white-space:normal}
.dopen>span:not(.thumb){padding:0 10px}
.dopen .thumb{aspect-ratio:3/2;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--muted);margin-bottom:6px;border-bottom:1px solid var(--line)}
.dopen .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.dopen .thumb svg{width:44px;height:44px;opacity:.6}
.dname{font-family:var(--f-display);font-size:18px;font-weight:600;line-height:1.15;overflow-wrap:anywhere}
@media (max-width:860px){
  #app{height:auto;min-height:100%}
  main{grid-template-columns:minmax(0,1fr)}
  .stage{height:62vh;min-height:360px}
  .side{max-height:none}
  .stage{display:flex;flex-direction:column;height:auto;min-height:0}
  .tools{position:static;padding:8px;border-bottom:1px solid var(--line);background:var(--panel)}
  .tools .seg button{padding:5px 7px}
  #vp{position:relative;inset:auto;height:56vh;min-height:320px}
  #hint{position:static;padding:6px 8px;text-shadow:none}
  #panel{overflow:visible}
  #dname{width:100%;order:3}
  .sum b{font-size:19px}
}
@media (prefers-reduced-motion:reduce){#toast{transition:none}}

/* account */
button.acct{padding:3px 6px 3px 3px;position:relative;border-radius:999px}
.av{width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:inline-flex;align-items:center;justify-content:center;font:600 14px var(--f-body);flex:none}
.av.big{width:44px;height:44px;font-size:20px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--muted);display:inline-block}
.dot.synced{background:var(--ok)}
.dot.syncing{background:var(--wood)}
.dot.offline,.dot.error{background:var(--warn)}
button.link{border:0;background:none;padding:0;color:var(--accent);font-weight:600;text-decoration:underline;display:inline;font-size:inherit}
.dopen>.badge{align-self:flex-start;margin:2px 10px 0;padding:1px 8px;font-size:11px;letter-spacing:.04em;border:1px solid var(--line);border-radius:999px;padding:1px 8px;color:var(--muted)}