:root{
  --bg:#0f1017; --surface:#181a24; --surface-2:#20222f; --border:#2a2d3d;
  --text:#e7e9f0; --text-dim:#9aa0b4; --accent:#7c5cff; --accent-soft:rgba(124,92,255,.14);
  --green:#3ddc97; --red:#ff5d6c; --amber:#ffb84d;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:radial-gradient(1200px 600px at 80% -10%, #1a1530 0%, var(--bg) 55%);
  color:var(--text);-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden;
}
.hidden{display:none !important}

.btn{border:none;border-radius:8px;padding:7px 12px;font-size:13px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:all .12s}
.btn-ghost{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:#282b3a}
.btn-sm{padding:6px 11px;font-size:12px}

.page{display:flex;flex-direction:column;height:100vh;max-width:1500px;margin:0 auto}

.pg-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:18px 24px 10px}
.pg-title h1{margin:0;font-size:20px;font-weight:700;letter-spacing:-.3px}
.pg-sub{margin:4px 0 0;font-size:13px;color:var(--text-dim)}

.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:8px 24px;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface-2)}
.mx-search{background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--text);
  padding:7px 11px;font-family:inherit;font-size:13px;outline:none;width:210px}
.mx-search:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.mx-regions{display:flex;gap:6px;flex-wrap:wrap}
.mx-rg{background:var(--surface);border:1px solid var(--border);color:var(--text-dim);border-radius:20px;
  padding:5px 11px;font-size:12px;font-family:inherit;cursor:pointer;transition:all .12s}
.mx-rg:hover{color:var(--text)}
.mx-rg.active{background:var(--accent-soft);border-color:rgba(124,92,255,.4);color:var(--text)}
.mx-rg:not(.active){opacity:.55}
.rg-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:middle}
.pareto-btns{display:flex;gap:6px;margin-left:auto}
#mxPareto.active{background:rgba(61,220,151,.14);border-color:rgba(61,220,151,.4);color:var(--green)}
#mxParetoRg.active{background:var(--accent-soft);border-color:rgba(124,92,255,.4);color:var(--text)}

.stage{position:relative;flex:1;min-height:0}
#canvas{display:block;width:100%;height:100%;cursor:grab}
#canvas.grabbing{cursor:grabbing}
.tip{position:absolute;pointer-events:none;z-index:5;background:#0c0d13;border:1px solid var(--border);
  border-radius:9px;padding:9px 11px;font-size:12px;max-width:250px;line-height:1.5;
  box-shadow:0 10px 40px rgba(0,0,0,.45)}
.tip .t-name{font-weight:600;margin-bottom:3px}
.tip .t-row{color:var(--text-dim);font-family:var(--mono);font-size:11px}
.tip .t-row b{color:var(--text);font-weight:500}
.msg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--text-dim);font-size:14px;text-align:center;padding:40px}

.pg-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:10px 24px;border-top:1px solid var(--border);font-size:11px;color:var(--text-dim)}
.attr a{color:var(--text-dim);text-decoration:underline}

@media(max-width:640px){
  .pg-title h1{font-size:17px}
  .mx-search{width:100%}
  .pareto-btns{margin-left:0}
}