/* =========================================================================
   BUILD MY SIMULATOR. Scoped to .b- so nothing leaks into the site.
   ========================================================================= */

.b-wrap [hidden]{display:none !important}

.b-tool{
  border:1px solid var(--line-2);
  border-radius:var(--radius-lg);
  background:var(--ink-850);
  overflow:hidden;
  box-shadow:0 40px 90px -44px rgba(0,0,0,.95);
}

/* Layout: controls left, drawing and results right. */
.b-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr)}
.b-grid > *{min-width:0}
@media (max-width:900px){ .b-grid{grid-template-columns:1fr} }

/* ---- Controls ---- */
.b-panel{padding:1.15rem;border-right:1px solid var(--line);background:var(--ink-800)}
@media (max-width:900px){ .b-panel{border-right:0;border-bottom:1px solid var(--line)} }

.b-legend{
  font-family:var(--f-mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--g-500);margin:0 0 .7rem;padding-bottom:.5rem;border-bottom:1px solid var(--line);
}
.b-legend + .b-legend{margin-top:1.5rem}

.b-field{margin-bottom:.85rem}
.b-field > label,
.b-field > .b-field__lab{
  display:block;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--txt-dim);margin-bottom:.35rem;
}
.b-dims{display:flex;gap:.4rem;align-items:center}
.b-dims input{
  width:100%;min-width:0;padding:.6rem .55rem;text-align:center;
  background:var(--ink-900);border:1px solid var(--line-2);border-radius:var(--radius);
  color:var(--txt);font-family:var(--f-display);font-weight:800;font-size:1.05rem;min-height:44px;
  -moz-appearance:textfield;
}
.b-dims input::-webkit-outer-spin-button,
.b-dims input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.b-dims input:focus{outline:none;border-color:var(--g-500);box-shadow:0 0 0 3px rgba(140,198,63,.16)}
.b-dims .b-u{
  font-family:var(--f-mono);font-size:.66rem;color:var(--txt-faint);flex:none;width:20px;
}
.b-field select{
  width:100%;padding:.6rem .7rem;min-height:44px;
  background:var(--ink-900);border:1px solid var(--line-2);border-radius:var(--radius);
  color:var(--txt);font-family:var(--f-body);font-size:.92rem;
}
.b-field select:focus{outline:none;border-color:var(--g-500);box-shadow:0 0 0 3px rgba(140,198,63,.16)}

/* Metric and imperial swap in place. */
.b-imperial{display:flex}
.b-metric{display:none}
.is-metric .b-imperial{display:none}
.is-metric .b-metric{display:flex}

.b-units{display:flex;gap:.3rem;margin-bottom:1rem}
.b-units button{
  flex:1;padding:.45rem;min-height:38px;
  background:var(--ink-750);border:1px solid var(--line-2);border-radius:var(--radius);
  color:var(--txt-dim);font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;
  text-transform:uppercase;cursor:pointer;transition:all .16s var(--ease);
}
.b-units button:hover{border-color:var(--g-600);color:#fff}
.b-units button.is-on{background:var(--g-500);border-color:var(--g-500);color:#07210A;font-weight:700}

.b-presets{display:grid;grid-template-columns:1fr 1fr;gap:.35rem;margin-bottom:1rem}
.b-presets button{
  padding:.5rem .4rem;min-height:44px;
  background:var(--ink-750);border:1px solid var(--line-2);border-radius:var(--radius);
  color:var(--txt-dim);font-size:.74rem;cursor:pointer;line-height:1.25;
  transition:all .16s var(--ease);
}
.b-presets button:hover{border-color:var(--g-600);color:#fff}
.b-presets button.is-on{border-color:var(--g-500);color:#fff;background:rgba(140,198,63,.12)}
.b-presets b{display:block;font-family:var(--f-display);font-weight:800;font-size:.82rem;color:inherit}

/* ---- Drawing ---- */
.b-stage{position:relative;background:#0a0d0e}
#b-canvas{display:block;width:100%;height:clamp(300px,42vh,420px)}

/* ---- Results ---- */
.b-out{padding:1.15rem;border-top:1px solid var(--line)}

.b-verdict{border-radius:var(--radius);padding:.95rem 1.1rem;margin-bottom:1rem;border-left:3px solid}
.b-verdict__t{font-family:var(--f-display);font-weight:800;text-transform:uppercase;font-size:1.15rem;line-height:1.05;margin:0 0 .35rem;color:#fff}
.b-verdict__l{margin:0 0 .4rem;font-size:.92rem;color:#c3ccc1;line-height:1.5}
.b-verdict__s{margin:0;font-size:.85rem;color:var(--txt-dim);line-height:1.5}
.b-verdict.is-pass{border-left-color:var(--g-500);background:linear-gradient(90deg,rgba(140,198,63,.10),transparent 70%)}
.b-verdict.is-warn{border-left-color:#E9B949;background:linear-gradient(90deg,rgba(233,185,73,.10),transparent 70%)}
.b-verdict.is-fail{border-left-color:#E5534B;background:linear-gradient(90deg,rgba(229,83,75,.10),transparent 70%)}

.b-checks{list-style:none;margin:0 0 1.2rem;padding:0;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.b-check{display:grid;grid-template-columns:auto 1fr;gap:.7rem;background:var(--ink-850);padding:.7rem .85rem;align-items:start}
.b-check__i{
  width:19px;height:19px;border-radius:50%;display:grid;place-items:center;flex:none;
  font-size:.7rem;font-weight:800;margin-top:1px;
}
.b-check.is-ok   .b-check__i{background:rgba(140,198,63,.18);color:var(--g-400)}
.b-check.is-warn .b-check__i{background:rgba(233,185,73,.18);color:#E9B949}
.b-check.is-fail .b-check__i{background:rgba(229,83,75,.18);color:#FF8B84}
/* A note is normal scope, not a fault. Styled neutrally so it does not read
   as a problem with the room. */
.b-check.is-note .b-check__i{background:rgba(255,255,255,.10);color:var(--txt-dim)}
.b-check__b b{display:block;font-size:.86rem;color:#fff;margin-bottom:.15rem}
.b-check__b span{display:block;font-size:.82rem;color:var(--txt-dim);line-height:1.5}

.b-spec{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:1.1rem}
.b-spec__row{display:grid;grid-template-columns:minmax(110px,.4fr) 1fr;gap:.8rem;background:var(--ink-850);padding:.65rem .85rem}
.b-spec__k{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--txt-faint);padding-top:2px}
.b-spec__v{font-family:var(--f-display);font-weight:800;font-size:1rem;color:var(--g-400);letter-spacing:-.01em}
.b-spec__v em{display:block;font:400 .8rem/1.5 var(--f-body);color:var(--txt-dim);margin-top:.2rem;letter-spacing:0}

.b-note{font-size:.78rem;color:var(--txt-faint);line-height:1.55;margin:0}

/* Quote handoff */
.b-send{border-top:1px solid var(--line);padding:1.15rem;background:var(--ink-800)}
.b-send__h{font-family:var(--f-display);font-weight:800;text-transform:uppercase;font-size:1.05rem;margin:0 0 .3rem;color:#fff}
.b-send__p{font-size:.86rem;color:var(--txt-dim);margin:0 0 .9rem;line-height:1.5}
.b-send .qf{box-shadow:none;border-color:var(--line)}

@media (max-width:640px){
  .b-presets{grid-template-columns:1fr}
  .b-spec__row{grid-template-columns:1fr;gap:.15rem}
}

@media print{
  .b-panel,.b-send{display:none}
  .b-tool{border:1px solid #999}
}