*{box-sizing:border-box}
:root{
  --bg:#0d0f13; --panel:#151922; --line:#242b38; --fg:#e8ecf4; --dim:#8a95a8;
  --accent:#0F9D73; --warn:#DE5F23; --load:#6153FA;
}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);
  font:13px/1.45 "Segoe UI",system-ui,sans-serif}
#app{display:flex;height:100%}
#panel{width:330px;flex:none;background:var(--panel);border-right:1px solid var(--line);
  overflow-y:auto;padding:14px 16px 40px}
#view{flex:1;position:relative;min-width:0}
#view canvas{display:block}
#hud{position:absolute;left:12px;bottom:10px;color:var(--dim);font-size:11px;
  pointer-events:none;white-space:pre-line}
h1{font-size:15px;margin:0;letter-spacing:.3px}
h2{font-size:11px;text-transform:uppercase;letter-spacing:.9px;color:var(--dim);
  margin:18px 0 8px;font-weight:600;display:flex;gap:8px;align-items:baseline}
.sub{margin:2px 0 0;color:var(--dim);font-size:11px}
.hint{color:var(--dim);font-size:10px;text-transform:none;letter-spacing:0;font-weight:400}
section{border-top:1px solid var(--line);margin-top:6px}
header{padding-bottom:12px}

.kite{display:flex;align-items:center;gap:7px;padding:3px 0}
.kite input[type=checkbox]{accent-color:var(--accent);margin:0}
.kite .dot{width:9px;height:9px;border-radius:50%;flex:none}
.kite .lbl{width:34px;cursor:pointer;font-variant-numeric:tabular-nums}
.kite.active .lbl{color:var(--accent);font-weight:600}
.kite select{flex:1;min-width:0;background:#1c222d;color:var(--fg);
  border:1px solid var(--line);border-radius:4px;padding:2px 4px;font-size:11px}
.chk{display:flex;align-items:center;gap:7px;margin-top:8px;color:var(--dim);font-size:11px}
.chk input{accent-color:var(--accent)}

.sl{margin:9px 0}
.sl .row{display:flex;justify-content:space-between;font-size:11px;margin-bottom:2px}
.sl .row b{font-weight:600;font-variant-numeric:tabular-nums}
.sl .row .u{color:var(--dim)}
.sl input[type=range]{width:100%;accent-color:var(--accent);margin:0}
.btns{display:flex;gap:6px}
button{margin:8px 0 4px;background:#1c222d;color:var(--fg);border:1px solid var(--line);
  border-radius:5px;padding:5px 9px;font-size:11px;cursor:pointer;width:100%}
button:hover{border-color:var(--accent)}

.seg{display:grid;grid-template-columns:30px 1fr 34px;gap:7px;align-items:center;
  margin:3px 0;font-size:11px}
.seg .n{color:var(--dim);font-variant-numeric:tabular-nums}
.seg .bar{height:5px;background:#1c222d;border-radius:3px;overflow:hidden}
.seg .bar i{display:block;height:100%;background:var(--load);transition:width .12s}
.seg .v{text-align:right;font-variant-numeric:tabular-nums}
#attach{margin-top:10px;display:flex;gap:4px}
#attach .a{flex:1;text-align:center;background:#1c222d;border-radius:4px;padding:4px 0;
  font-size:10px}
#attach .a b{display:block;font-size:12px;font-variant-numeric:tabular-nums}
#attach .a span{color:var(--dim)}
#info{margin-top:10px;color:var(--dim);font-size:11px;line-height:1.7}
#info b{color:var(--fg);font-variant-numeric:tabular-nums}
.err{color:var(--warn)}
.busy{color:var(--warn)}

/* --- per-line rows --- */
.lrow{display:grid;grid-template-columns:30px 1fr 62px 24px;gap:7px;align-items:center;margin:4px 0}
.lrow .ln{font-weight:600;font-variant-numeric:tabular-nums}
.lrow input[type=range]{width:100%;accent-color:var(--accent);margin:0;height:14px}
.lrow input[type=number]{background:#1c222d;color:var(--fg);border:1px solid var(--line);
  border-radius:4px;padding:2px 4px;font-size:11px;width:100%;-moz-appearance:textfield}
.lrow input[type=number]::-webkit-inner-spin-button{opacity:.4}
.lrow .u{color:var(--dim);font-size:10px}
.lrow.touched .ln{color:var(--warn)}
.tip{font-size:10.5px;line-height:1.5;margin:8px 0 2px}

/* --- knot popup --- */
#knotpop{position:absolute;z-index:20;background:var(--panel);border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;font-size:12px;box-shadow:0 6px 24px rgba(0,0,0,.5)}
#knotpop b{display:block;margin-bottom:6px}
#knotpop .pbtns{display:flex;gap:6px}
#knotpop button{margin:0;width:auto;padding:4px 12px}
#knotpop button.on{border-color:var(--accent);color:var(--accent)}
#knotpop button:disabled{opacity:.45;cursor:not-allowed}
#knotpop .hint{display:block;margin-top:5px}

/* --- footer / team login --- */
footer{border-top:1px solid var(--line);margin-top:18px;padding-top:10px;
  display:flex;align-items:center;gap:8px}
footer button{width:auto;margin:0;padding:4px 10px}

/* --- static-build login wall --- */
#bridlewall{position:fixed;inset:0;z-index:100;background:rgba(13,15,19,.96);
  display:flex;align-items:center;justify-content:center}
#bridlewall .box{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:28px 34px;max-width:360px;text-align:center}
#bridlewall h2{margin:0 0 10px;font-size:16px}
#bridlewall p{color:var(--dim);font-size:12.5px;line-height:1.5}
#bridlewall .small{font-size:11px;margin-top:14px}
#bridlewall button{width:auto;padding:8px 18px;font-size:13px;margin:10px 0 0}