:root{
  --bg:#080b10; --bg2:#0d131b; --panel:#111923; --panel2:#0c141d;
  --line:#1e2c3a; --line2:#2a3d4f;
  --fg:#dbe6f0; --mut:#7488a0; --dim:#4d5f74;
  --cu:#e0913f; --pri:#4ec9e0; --tap:#ffd166; --top:#b9c6d4;
  --warn:#f0883e; --bad:#f0596b; --ok:#5ed6a0;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);font:14px/1.45 var(--sans);
  -webkit-font-smoothing:antialiased;overflow:hidden;
}
button,input,select{font:inherit;color:inherit}

/* ---------------------------------------------------------------- topbar */
.topbar{
  height:52px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:linear-gradient(180deg,#101823,#0b1119);
  border-bottom:1px solid var(--line);position:relative;z-index:5;
}
.brand{display:flex;align-items:center;gap:12px}
.brand h1{font-size:15px;font-weight:600;margin:0;letter-spacing:.3px}
.mark{
  width:20px;height:20px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#7ff0ff,#2b7f9c 55%,#0d2b38 100%);
  box-shadow:0 0 14px rgba(78,201,224,.55);flex:none;
}
.stage{color:var(--dim);font-size:11.5px;letter-spacing:.9px;text-transform:uppercase}
.topctl{display:flex;align-items:center;gap:14px}
.sel{display:flex;align-items:center;gap:7px;color:var(--mut);font-size:12px}
.sel select{
  background:var(--panel);border:1px solid var(--line2);border-radius:6px;
  padding:5px 8px;font-size:12.5px;
}
.units,.seg{display:flex;border:1px solid var(--line2);border-radius:6px;overflow:hidden}
.units button,.seg button{
  background:var(--panel);border:0;padding:5px 11px;font-size:12px;color:var(--mut);
  cursor:pointer;border-right:1px solid var(--line2);
}
.units button:last-child,.seg button:last-child{border-right:0}
.units button.on,.seg button.on{background:#1d3444;color:#8fe3f5}

/* ---------------------------------------------------------------- layout */
main{
  height:calc(100% - 52px - 26px);
  display:grid;grid-template-columns:264px minmax(340px,1fr) 424px;
  gap:1px;background:var(--line);
}
.panel{background:var(--bg2);overflow-y:auto;overflow-x:hidden}
.panel::-webkit-scrollbar{width:9px}
.panel::-webkit-scrollbar-thumb{background:#20303f;border-radius:5px}

/* ---------------------------------------------------------------- inputs */
.inputs{padding:0 0 20px}
.group{border-bottom:1px solid var(--line)}
.ghead{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px 9px;background:var(--panel2);
}
.ghead h2{
  margin:0;font-size:11px;font-weight:600;letter-spacing:1.3px;
  text-transform:uppercase;color:var(--pri);
}
.ghead .seg button{padding:3px 8px;font-size:11px}
.rows{padding:9px 14px 12px;display:flex;flex-direction:column;gap:7px}
.rows.hide{display:none}
.rows label{
  display:grid;grid-template-columns:1fr 106px;align-items:center;gap:8px;
  font-size:12.5px;color:var(--mut);
}
.rows input[type=number],.rows select{
  background:#0a1017;border:1px solid var(--line2);border-radius:5px;
  padding:5px 7px;font:12.5px var(--mono);color:var(--fg);width:100%;
  text-align:right;
}
.rows select{text-align:left}
.rows input[type=number]{-moz-appearance:textfield;appearance:textfield}
.rows input[type=number]::-webkit-outer-spin-button,
.rows input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.rows input[type=number]:focus,.rows select:focus{
  outline:0;border-color:#3d7f96;box-shadow:0 0 0 2px rgba(78,201,224,.13)
}
.withbtn{display:flex;gap:4px}
.mini{
  background:#1a2836;border:1px solid var(--line2);border-radius:5px;color:var(--mut);
  font-size:10.5px;padding:0 6px;cursor:pointer;flex:none;
}
.mini:hover{color:var(--pri);border-color:#3d7f96}
.withslider{display:flex;align-items:center;gap:7px}
.withslider input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:3px;border-radius:2px;
  background:var(--line2);
}
.withslider input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;
  background:var(--pri);cursor:pointer;box-shadow:0 0 7px rgba(78,201,224,.6)
}
.withslider input[type=range]::-moz-range-thumb{
  width:13px;height:13px;border:0;border-radius:50%;background:var(--pri);cursor:pointer
}
.withslider output{
  font:11.5px var(--mono);color:var(--fg);min-width:34px;text-align:right;flex:none
}
.hint{padding:0 0 4px;font-size:11px;color:var(--dim);font-style:italic}

.notices{padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.notice{
  font-size:11.5px;line-height:1.35;padding:7px 9px;border-radius:5px;
  border-left:2px solid var(--warn);background:rgba(240,136,62,.07);color:#e8bf96;
}
.notice.bad{border-color:var(--bad);background:rgba(240,89,107,.08);color:#f3aab3}
.notice.ok{border-color:var(--ok);background:rgba(94,214,160,.07);color:#a5e6c8}

/* ---------------------------------------------------------------- 3D view */
.view{position:relative;overflow:hidden;background:
  radial-gradient(ellipse at 50% 15%,#16222f 0%,#0a0f15 60%,#070a0e 100%)}
#gl{position:absolute;top:0;left:0;width:100%;height:100%;display:block}
.viewctl{
  position:absolute;top:12px;left:12px;display:flex;gap:6px;flex-wrap:wrap;
  max-width:calc(100% - 24px);z-index:2;
}
.viewctl button{
  background:rgba(13,22,31,.94);border:1px solid var(--line2);border-radius:5px;
  padding:4px 9px;font-size:11px;color:var(--mut);cursor:pointer;
}
.viewctl button:hover{color:var(--fg);border-color:#3d7f96}
.viewctl button.on{background:#1d3444;color:#8fe3f5;border-color:#3d7f96}
.dimreadout{
  position:absolute;right:12px;top:12px;z-index:2;text-align:right;
  font:11px var(--mono);color:var(--mut);background:rgba(13,22,31,.92);
  border:1px solid var(--line);border-radius:6px;padding:8px 10px;
}
.dimreadout b{color:var(--fg);font-weight:600}
.legend{
  position:absolute;left:12px;bottom:10px;display:flex;gap:14px;flex-wrap:wrap;
  font-size:10.5px;color:var(--mut);z-index:2;
}
.legend span{display:flex;align-items:center;gap:5px}
.legend i{width:9px;height:9px;border-radius:2px;display:inline-block}

/* ---------------------------------------------------------------- results */
.results{padding:14px}
.hero{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:14px}
.card{
  background:linear-gradient(160deg,#152131,#0e1621);border:1px solid var(--line2);
  border-radius:8px;padding:11px 12px;
}
.card.wide{grid-column:1/-1}
.card .k{font-size:10px;letter-spacing:1.1px;text-transform:uppercase;color:var(--mut)}
.card .v{font:600 24px/1.15 var(--mono);color:#8fe3f5;margin-top:3px;letter-spacing:-.5px}
.card.wide .v{color:var(--tap)}
.card .u{font-size:10.5px;color:var(--dim);margin-top:2px}

.tbl{margin-bottom:14px}
h3{
  margin:0 0 7px;font-size:10.5px;font-weight:600;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--mut);
}
table{width:100%;border-collapse:collapse;font-size:12.5px}
table td{padding:4px 0;border-bottom:1px solid #16222e}
table td:nth-child(2){text-align:right;font-family:var(--mono);color:var(--fg);white-space:nowrap}
table td.m{text-align:right;color:var(--dim);font-size:10px;width:110px;padding-left:8px;white-space:nowrap}
table td:first-child{color:var(--mut)}

.charts{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:14px}
.chart svg{width:100%;height:96px;display:block}

.tapstrip .scroll{max-height:200px;overflow-y:auto;border:1px solid var(--line);border-radius:6px}
.tapstrip table{font-size:11.5px}
.tapstrip th{
  position:sticky;top:0;background:#101a25;color:var(--mut);font-weight:500;
  font-size:10px;letter-spacing:.6px;text-transform:uppercase;padding:5px 7px;text-align:right;
}
.tapstrip th:first-child,.tapstrip td:first-child{text-align:left}
.tapstrip td{padding:3px 7px;text-align:right;font-family:var(--mono);cursor:pointer}
.tapstrip tr:hover td{background:#16222e}
.tapstrip tr.sel td{background:rgba(255,209,102,.11);color:var(--tap)}

.boundary{
  margin:16px 0 0;padding:9px 11px;border:1px dashed var(--line2);border-radius:6px;
  font-size:11.5px;color:var(--dim);line-height:1.45;
}

footer{
  height:26px;display:flex;align-items:center;justify-content:space-between;
  padding:0 14px;border-top:1px solid var(--line);background:#080c11;
  font:10.5px var(--mono);color:var(--dim);
}

@media (max-width:1100px){
  body{overflow:auto}
  main{grid-template-columns:1fr;height:auto}
  .panel{overflow:visible}
  .view{height:70vh;min-height:420px}
}