@font-face{font-family:'Outfit';src:url('../fonts/outfit.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'JBMono';src:url('../fonts/jetbrains-mono.woff2') format('woff2');font-weight:100 800;font-display:swap}

:root{
  --bg:#0a0a0b;
  --panel:#0e0f11;
  --line:#1e2024;
  --line-2:#2a2d33;
  --ink:#f2ede4;
  --ink-2:rgba(242,237,228,.72);
  --ink-3:rgba(242,237,228,.44);
  --amber:#ff9e5e;
  --amber-dim:rgba(255,158,94,.16);
  --mono:'JBMono',ui-monospace,monospace;
  --sans:'Outfit',system-ui,sans-serif;
  --rail:64px;
  --side:300px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  display:flex;flex-direction:column;overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.dim{color:var(--ink-3);font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;font-weight:400}

/* ---------- top bar ---------- */
.bar{
  flex:0 0 58px;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px 0 20px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#0d0e10,#0a0a0b);
}
.brand{display:flex;align-items:center;gap:10px}
.brand svg{width:22px;height:22px;color:var(--amber);stroke-width:5}
.brand-name{font-weight:500;letter-spacing:.46em;font-size:13px;margin-right:-2px}
.brand-sub{font-family:var(--mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);padding-left:12px;border-left:1px solid var(--line-2)}
.bar-actions{display:flex;align-items:center;gap:8px}
.lang{display:flex;border:1px solid var(--line-2);margin-right:6px}
.lang button{
  font-family:var(--mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;
  padding:8px 10px;color:var(--ink-3);transition:color .2s,background .2s;
}
.lang button+button{border-left:1px solid var(--line-2)}
.lang button:hover{color:var(--ink)}
.lang button.is-on{color:var(--amber);background:var(--amber-dim)}
.ghost,.solid{
  white-space:nowrap;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  padding:9px 14px;border:1px solid var(--line-2);transition:border-color .25s,background .25s,color .25s;
}
.ghost{color:var(--ink-2)}
.ghost:hover{color:var(--ink);border-color:var(--ink-3)}
.solid{color:#0a0a0b;background:var(--amber);border-color:var(--amber);font-weight:500}
.solid:hover{background:#ffb37c}
.menu-wrap{position:relative}
.menu{
  position:absolute;right:0;top:calc(100% + 6px);min-width:190px;z-index:30;
  background:#111214;border:1px solid var(--line-2);padding:5px;
  box-shadow:0 18px 40px rgba(0,0,0,.55);
}
.menu button{
  display:block;width:100%;text-align:left;padding:10px 12px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);
}
.menu button:hover{background:var(--amber-dim);color:var(--ink)}

/* ---------- layout ---------- */
.stage{
  flex:1;min-height:0;display:grid;grid-template-columns:var(--rail) minmax(0,1fr) var(--side);
}
.rail{
  border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;
  gap:18px;padding:14px 0;background:var(--panel);
}
.rail-group{display:flex;flex-direction:column;gap:4px}
.tool{
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  color:var(--ink-3);border:1px solid transparent;transition:color .2s,background .2s,border-color .2s;
}
.tool:hover{color:var(--ink);background:rgba(255,255,255,.03)}
.tool.is-on{color:var(--amber);border-color:rgba(255,158,94,.45);background:var(--amber-dim)}
.tool.is-off{opacity:.35}
.tool:disabled{opacity:.22;cursor:default}

.board-wrap{
  position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;
  background:
    radial-gradient(circle at 50% 42%,rgba(255,158,94,.045),transparent 62%),
    repeating-linear-gradient(0deg,transparent 0 39px,rgba(255,255,255,.018) 39px 40px),
    repeating-linear-gradient(90deg,transparent 0 39px,rgba(255,255,255,.018) 39px 40px),
    #08090a;
}
canvas#board{display:block;touch-action:none;cursor:crosshair}
.board-hint{
  position:absolute;left:50%;bottom:12px;transform:translateX(-50%);
  font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);pointer-events:none;transition:opacity .4s;
}
.drop-veil{
  position:absolute;inset:0;display:none;align-items:center;justify-content:center;
  background:rgba(10,10,11,.82);border:1px dashed rgba(255,158,94,.6);margin:10px;
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);
}
.drop-veil.on{display:flex}

/* ---------- side ---------- */
.side{
  border-left:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;
  min-height:0;overflow:hidden;
}
.panel{padding:16px 16px 14px;border-bottom:1px solid var(--line)}
.panel-grow{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}
.panel-t{
  margin:0 0 12px;font-family:var(--mono);font-size:9px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-2);font-weight:400;display:flex;justify-content:space-between;gap:8px;
}
.palette{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}
.sw{
  position:relative;aspect-ratio:1;border:1px solid rgba(0,0,0,.5);border-radius:2px;
  transition:transform .12s,box-shadow .12s;
}
.sw:hover{transform:translateY(-1px)}
.sw.is-on{box-shadow:0 0 0 2px var(--amber);z-index:2}
.current{display:flex;align-items:center;gap:10px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.chip{width:22px;height:22px;border-radius:2px;border:1px solid rgba(0,0,0,.5);flex:0 0 auto}
.current-txt{display:flex;flex-direction:column;gap:2px;min-width:0}
.current-txt b{font-size:12px;font-weight:400;letter-spacing:.02em}
.current-txt span{font-family:var(--mono);font-size:9px;letter-spacing:.14em;color:var(--ink-3)}

.usage{list-style:none;margin:0;padding:0 4px 0 0;overflow-y:scroll;min-height:0;flex:1;display:flex;flex-direction:column;gap:2px}
.usage::-webkit-scrollbar{width:7px}
.usage::-webkit-scrollbar-track{background:rgba(255,255,255,.03)}
.usage::-webkit-scrollbar-thumb{background:#33373e;border-radius:3px}
.usage{scrollbar-width:thin;scrollbar-color:#3a3e45 transparent;scrollbar-gutter:stable}
.usage li{display:flex;align-items:center;gap:9px;padding:5px 2px;border-bottom:1px solid rgba(255,255,255,.03)}
.usage .u-chip{width:13px;height:13px;border-radius:2px;flex:0 0 auto}
.usage .u-code{font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:var(--ink-3);width:34px}
.usage .u-name{font-size:11px;color:var(--ink-2);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.usage .u-n{font-family:var(--mono);font-size:10px;color:var(--ink)}
.usage .u-empty{font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:var(--ink-3);padding:8px 2px}

.sizes{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-bottom:10px}
.sizes button{
  font-family:var(--mono);font-size:8.5px;letter-spacing:.02em;padding:7px 2px;
  border:1px solid var(--line-2);color:var(--ink-2);transition:all .2s;
}
.sizes button:hover{color:var(--ink);border-color:var(--ink-3)}
.sizes button.is-on{color:var(--amber);border-color:rgba(255,158,94,.5);background:var(--amber-dim)}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:8px 0;
  font-family:var(--mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.row-check{justify-content:flex-start;gap:8px;cursor:pointer}
select{
  background:#111214;color:var(--ink);border:1px solid var(--line-2);
  font-family:var(--mono);font-size:9.5px;padding:6px 8px;letter-spacing:.06em;
}
input[type=checkbox]{accent-color:var(--amber);width:13px;height:13px}
.wide{width:100%;margin-top:10px;padding:9px}
#btnClear{color:rgba(255,140,140,.75);border-color:rgba(255,120,120,.22)}
#btnClear:hover{color:#ff9a9a;border-color:rgba(255,120,120,.55);background:rgba(255,80,80,.06)}

/* ---------- status ---------- */
.status{
  flex:0 0 30px;display:flex;align-items:center;gap:18px;padding:0 18px;
  border-top:1px solid var(--line);background:var(--panel);
  font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);
}
.status .grow{flex:1}
.status .msg{color:var(--amber)}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  :root{--side:248px;--rail:54px}
  .palette{grid-template-columns:repeat(6,1fr)}
}
@media (max-width:820px){
  .stage{grid-template-columns:58px minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto}
  .rail{padding:10px 0;gap:12px}
  .tool{width:46px;height:46px}
  .rail-group{gap:3px}
  .side{
    grid-column:1/-1;flex-direction:row;align-items:center;gap:14px;
    border-left:0;border-top:1px solid var(--line);padding:10px 10px;
    overflow-x:auto;overflow-y:hidden;max-height:132px;
  }
  .side .panel{border:0;padding:0;flex:0 0 auto}
  .side .panel-grow{display:none}
  .panel-t{margin-bottom:7px}
  .palette{display:grid;grid-template-rows:repeat(2,34px);grid-auto-flow:column;grid-auto-columns:34px;gap:6px}
  .sw{width:34px;height:34px;aspect-ratio:auto}
  .current{display:none}
  .chip{width:20px;height:20px}
  .current-txt b{font-size:11px}
  .sizes{grid-template-columns:repeat(2,1fr);margin-bottom:0;gap:4px}
  .sizes button{padding:6px 8px;font-size:8px}
  .row,.wide{display:none}
  .brand-sub{display:none}
  .bar{flex:0 0 auto;height:auto;flex-direction:column;align-items:stretch;gap:8px;padding:10px 12px}
  .bar .brand{justify-content:flex-start}
  .bar-actions{width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:2px}
  .ghost,.solid{padding:8px 10px;font-size:9px}
  .status{gap:12px;padding:0 12px}
}

/* ---------- print ---------- */
#printSheet{display:none}
@media print{
  @page{size:A4;margin:12mm}
  body{overflow:visible;display:block;background:#fff;color:#000}
  .bar,.stage,.status{display:none !important}
  #printSheet{display:block}
  #printSheet .sheet{page-break-after:always;break-after:page}
  #printSheet .sheet:last-child{page-break-after:auto;break-after:auto}
  #printSheet h1{font-family:var(--sans);font-size:15pt;margin:0 0 2mm;letter-spacing:.04em}
  #printSheet .meta{font-family:var(--mono);font-size:7.5pt;color:#444;margin:0 0 4mm;letter-spacing:.06em;text-transform:uppercase}
  #printSheet .legend{font-family:var(--mono);font-size:7.5pt;color:#222;margin-top:4mm;column-count:2;column-gap:8mm}
  #printSheet .legend div{break-inside:avoid;padding:.6mm 0}
}