:root { color-scheme: dark; }
html, body { width:100%; height:100%; margin:0; overflow:hidden; background:#020306; }
.square-stage { position:absolute!important; inset:0!important; width:100%!important; height:100%!important; }
#square-canvas { position:absolute; inset:0; width:100%; height:100%; touch-action:none; cursor:grab; }
#square-canvas:active { cursor:grabbing; }
#square-canvas:focus-visible { outline:2px solid #bceaff; outline-offset:-3px; }
.square-layer-heading { display:flex; justify-content:space-between; align-items:center; margin-bottom:8px; }
#square-progress { color:#9bdce9; font-size:11px; font-variant-numeric:tabular-nums; }
#square-layer-title { display:block; color:#e6f7ff; font:normal 18px Georgia,serif; min-height:24px; }
.square-transport { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin:10px 0 6px; }
#square-panel button { min-width:0; }
#square-next { border-color:rgba(146,227,249,.5); background:rgba(102,211,255,.12); }
#square-explanation { min-height:42px; line-height:1.5; }
.square-fraction-step { padding:7px 3px; border-top:1px solid rgba(181,224,244,.18); color:#dff7ff; font-size:17px; }
.square-fraction-step math { margin:0 auto; }
.square-coefficients { margin:12px 0; }
.square-coefficient-equation { color:#dff7ff; font:normal 17px Georgia,serif; text-align:center; padding:10px 6px; margin:9px 0 11px; border:1px solid rgba(181,224,244,.22); border-radius:10px; background:rgba(102,211,255,.055); }
#square-panel .sfi-control-row { grid-template-columns:88px minmax(0,1fr) 30px; }
#square-panel .sfi-control-row output { text-align:right; font-variant-numeric:tabular-nums; }
.square-examples { border:0; padding:0; margin:12px 0; min-width:0; }
.square-examples legend { font-size:10px; color:#adc2cf; margin-bottom:7px; }
.square-preset-label { display:block; font-size:10px; color:#adc2cf; margin:10px 0 6px; }
.square-semantic { margin-top:14px; }
.square-semantic[hidden], .square-coefficients[hidden], #square-branches[hidden] { display:none; }
.square-source-equation { padding:8px 2px 14px; margin-bottom:12px; border-bottom:1px solid rgba(181,224,244,.13); color:#dff7ff; font:normal 18px Georgia,serif; text-align:center; }
.square-semantic math { display:block; margin:12px auto; font-size:19px; color:#dff7ff; }
.square-semantic #square-form { padding:8px 2px; border-bottom:1px solid rgba(181,224,244,.13); }
.square-conventional-form { border-top:1px solid rgba(181,224,244,.13); margin-top:12px; padding-top:12px; }
#square-error { color:#ffb5ac; }
@media(max-width:640px) {
  .square-layer-heading { float:right; margin:3px 0 0 8px; }
  .square-layer-heading .sfi-result-label { display:none; }
  #square-layer-title { font-size:15px; min-height:20px; }
  .square-transport { margin-top:5px; }
  #square-explanation { min-height:0; margin-block:5px; }
  .square-coefficients { margin:7px 0; }
}