/* Metal Building Configurator */
.mbc-root { --mbc-accent:#c8102e; --mbc-ink:#1f2933; --mbc-muted:#6b7683; --mbc-line:#dfe3e8; --mbc-bg:#f4f6f8;
  color:var(--mbc-ink); font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  box-sizing:border-box; }
.mbc-root *, .mbc-root *::before, .mbc-root *::after { box-sizing:border-box; }

.mbc-grid { display:grid; grid-template-columns:1.35fr 1fr; gap:20px; align-items:stretch; }
/* let the columns shrink below their content's min-width — otherwise the tab
   strip (a horizontal scroller ~480px wide) props the column open and the
   whole widget runs off the right edge of a phone screen */
.mbc-grid > * { min-width:0; }
@media (max-width:900px){ .mbc-grid{ grid-template-columns:1fr; } }

/* viewer */
.mbc-viewer { position:relative; border:1px solid var(--mbc-line); border-radius:12px; overflow:hidden;
  background:linear-gradient(#33414f 0%, #4a5a6b 38%, #93a2b1 100%); min-height:360px; }
.mbc-viewer canvas { display:block; width:100%; height:100%; }
.mbc-hint { position:absolute; left:12px; bottom:10px; font-size:12px; color:var(--mbc-muted);
  background:rgba(255,255,255,.7); padding:3px 8px; border-radius:6px; pointer-events:none; }
.mbc-badge { position:absolute; right:12px; top:12px; background:#fff; border:1px solid var(--mbc-line);
  border-radius:10px; padding:8px 12px; text-align:right; box-shadow:0 2px 8px rgba(0,0,0,.06); }
.mbc-badge .lbl { font-size:11px; letter-spacing:.04em; text-transform:uppercase; color:var(--mbc-muted); }
.mbc-badge .val { font-size:20px; font-weight:700; }
.mbc-badge .sub { font-size:11px; color:var(--mbc-muted); }

/* controls */
.mbc-panel { border:1px solid var(--mbc-line); border-radius:12px; background:#fff; padding:18px; }
.mbc-panel h3 { margin:0 0 4px; font-size:18px; }
.mbc-panel .mbc-sub { margin:0 0 14px; color:var(--mbc-muted); font-size:13px; }

/* section tabs */
.mbc-tabs { display:flex; gap:2px; border-bottom:1px solid var(--mbc-line); margin:2px 0 16px;
  overflow-x:auto; scrollbar-width:none; }
.mbc-tabs::-webkit-scrollbar { display:none; }
.mbc-tab { flex:0 0 auto; display:flex; flex-direction:column; align-items:center; gap:5px;
  padding:9px 14px 8px; border:0; background:none; cursor:pointer; color:var(--mbc-muted);
  font-size:12px; font-weight:600; font-family:inherit; white-space:nowrap;
  border-bottom:2px solid transparent; margin-bottom:-1px; transition:color .15s, border-color .15s; }
.mbc-tab:hover { color:var(--mbc-ink); }
.mbc-tab.active { color:var(--mbc-accent); border-bottom-color:var(--mbc-accent); }
.mbc-tab:focus-visible { outline:2px solid rgba(200,16,46,.35); outline-offset:-3px; border-radius:8px; }
.mbc-tico { width:22px; height:22px; display:block; }
.mbc-tab-lbl { line-height:1; }
.mbc-tabpane { display:none; }
.mbc-tabpane.active { display:block; animation:mbc-fade .18s ease; }
@keyframes mbc-fade { from { opacity:0; transform:translateY(3px); } to { opacity:1; transform:none; } }

/* opening repeaters (add/remove individual doors) */
.mbc-open-card { border:1px solid var(--mbc-line); border-radius:10px; padding:12px 12px 4px; margin-bottom:10px;
  background:#fbfcfd; }
.mbc-open-head { display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.mbc-open-head .t { font-size:13px; font-weight:600; color:var(--mbc-ink); }
.mbc-open-remove { border:0; background:none; color:var(--mbc-muted); cursor:pointer; font-size:20px; line-height:1;
  width:26px; height:26px; border-radius:6px; transition:color .12s, background .12s; }
.mbc-open-remove:hover { color:var(--mbc-accent); background:#fdecee; }
.mbc-add { width:100%; border:1px dashed var(--mbc-line); background:#fff; color:var(--mbc-ink); border-radius:10px;
  padding:11px; font-size:14px; font-weight:600; font-family:inherit; cursor:pointer; transition:border-color .12s, color .12s; }
.mbc-add:hover { border-color:var(--mbc-accent); color:var(--mbc-accent); }
.mbc-add:disabled { opacity:.5; cursor:not-allowed; border-style:solid; color:var(--mbc-muted); }
.mbc-add:disabled:hover { border-color:var(--mbc-line); color:var(--mbc-muted); }
.mbc-empty { color:var(--mbc-muted); font-size:13px; padding:6px 0 14px; }
.mbc-open-msg { display:none; font-size:12px; color:var(--mbc-accent); background:#fdecee; border-radius:8px;
  padding:8px 10px; margin:0 0 10px; }
.mbc-open-msg.show { display:block; }

.mbc-group { border-top:1px solid var(--mbc-line); padding:12px 0; }
.mbc-group:first-of-type { border-top:0; padding-top:0; }
.mbc-group > h4 { margin:0 0 10px; font-size:12px; letter-spacing:.06em; text-transform:uppercase; color:var(--mbc-muted); }
.mbc-fields { display:grid; grid-template-columns:1fr 1fr; gap:10px 14px; }
.mbc-field.full { grid-column:1 / -1; }
.mbc-field label { display:block; font-size:12px; margin-bottom:4px; color:var(--mbc-ink); }
.mbc-field .unit { color:var(--mbc-muted); }
.mbc-field input, .mbc-field select, .mbc-contact input, .mbc-contact textarea {
  width:100%; padding:8px 10px; border:1px solid var(--mbc-line); border-radius:8px; font-size:14px; background:#fff; color:var(--mbc-ink); }
.mbc-field input:focus, .mbc-field select:focus, .mbc-contact input:focus, .mbc-contact textarea:focus {
  outline:none; border-color:var(--mbc-accent); box-shadow:0 0 0 3px rgba(200,16,46,.12); }
.mbc-range { display:flex; align-items:center; gap:8px; }
.mbc-range input[type=range]{ flex:1; accent-color:var(--mbc-accent); padding:0; }
.mbc-range .num { width:66px; }

/* actions / quote */
.mbc-actions { margin-top:16px; display:flex; gap:10px; }
.mbc-actions .mbc-btn { width:auto; }
.mbc-actions .mbc-btn:first-child { flex:1; }
.mbc-btn { display:inline-block; width:100%; border:0; border-radius:10px; padding:13px 18px; font-size:15px;
  font-weight:600; cursor:pointer; background:var(--mbc-accent); color:#fff; transition:filter .15s; }
.mbc-btn:hover { filter:brightness(1.06); }
.mbc-btn.secondary { background:#eef1f4; color:var(--mbc-ink); }
.mbc-btn[disabled]{ opacity:.6; cursor:default; }

.mbc-contact { display:none; margin-top:14px; }
.mbc-contact.open { display:block; }

/* standalone quote view (its own screen with a Back button) */
.mbc-quoteview { display:none; }
.mbc-quoteview.active { display:block; animation:mbc-fade .18s ease; }
.mbc-quoteview .mbc-contact { display:block; margin-top:0; }
.mbc-back { display:inline-flex; align-items:center; gap:5px; border:0; background:none; cursor:pointer;
  color:var(--mbc-muted); font-size:13px; font-weight:600; font-family:inherit; padding:2px 4px 2px 0; margin-bottom:12px;
  border-radius:6px; transition:color .12s; }
.mbc-back:hover { color:var(--mbc-accent); }
.mbc-back svg { width:18px; height:18px; }
.mbc-quote-recap { display:flex; justify-content:space-between; align-items:center; gap:12px;
  background:var(--mbc-bg); border:1px solid var(--mbc-line); border-radius:10px; padding:10px 12px; margin:0 0 14px; }
.mbc-quote-recap span { color:var(--mbc-muted); font-size:12px; }
.mbc-quote-recap strong { font-size:17px; white-space:nowrap; }
.mbc-contact .row { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:10px; }
.mbc-contact .row.one { grid-template-columns:1fr; }
.mbc-contact label { font-size:12px; color:var(--mbc-ink); display:block; margin-bottom:4px; }
.mbc-msg { margin-top:12px; font-size:14px; padding:10px 12px; border-radius:8px; display:none; }
.mbc-msg.ok { display:block; background:#e6f6ec; color:#1a7a3f; }
.mbc-msg.err { display:block; background:#fdecee; color:#b3243b; }

.mbc-swatches { display:flex; gap:7px; flex-wrap:wrap; }
.mbc-swatch { width:28px; height:28px; border-radius:7px; border:2px solid #fff; cursor:pointer; padding:0;
  box-shadow:0 0 0 1px var(--mbc-line); transition:transform .1s; }
.mbc-swatch:hover { transform:scale(1.08); }
.mbc-swatch.sel { box-shadow:0 0 0 2px var(--mbc-ink); }

.mbc-summary { margin-top:6px; font-size:13px; color:var(--mbc-muted); }
.mbc-note { margin-top:10px; font-size:11px; color:var(--mbc-muted); }

/* ---- fullscreen (native :fullscreen on .mbc-root, or the .mbc-fs-fallback overlay) ---- */
.mbc-fsbtn { position:absolute; left:12px; top:12px; width:36px; height:36px; display:flex; align-items:center;
  justify-content:center; padding:0; border:1px solid var(--mbc-line); border-radius:9px; cursor:pointer;
  background:rgba(255,255,255,.92); color:var(--mbc-ink); box-shadow:0 2px 8px rgba(0,0,0,.06);
  transition:color .12s, transform .1s; }
.mbc-fsbtn:hover { color:var(--mbc-accent); transform:scale(1.06); }
.mbc-fsbtn svg { width:18px; height:18px; display:block; }
.mbc-root::backdrop { background:#fff; }

.mbc-root.mbc-fs { background:#fff; height:100%; padding:14px; overflow:auto; }
.mbc-root.mbc-fs-fallback { position:fixed; inset:0; z-index:99999; }
html.mbc-fs-lock, html.mbc-fs-lock body { overflow:hidden !important; }

/* app-like layout: viewer fills the screen, controls become a scrollable sidebar */
.mbc-root.mbc-fs .mbc-grid { grid-template-columns:minmax(0,1fr) 420px; height:100%; gap:14px; }
.mbc-root.mbc-fs .mbc-grid > div:first-child { display:flex; flex-direction:column; min-height:0; min-width:0; }
.mbc-root.mbc-fs .mbc-viewer { flex:1 1 auto; height:auto !important; min-height:0; }
.mbc-root.mbc-fs .mbc-summary { flex:0 0 auto; }
.mbc-root.mbc-fs .mbc-panel { overflow-y:auto; min-height:0; }
@media (max-width:900px){
  /* stacked on small screens: viewer on top, controls scroll underneath */
  .mbc-root.mbc-fs { padding:10px; }
  .mbc-root.mbc-fs .mbc-grid { grid-template-columns:1fr; grid-template-rows:auto minmax(0,1fr); gap:10px; }
  .mbc-root.mbc-fs .mbc-viewer { flex:0 0 auto; height:44vh !important; min-height:220px; max-height:none; }
}

/* ---- responsive / mobile ---- */
/* never let the widget push the page wider than the viewport */
.mbc-root { width:100%; max-width:100%; }
.mbc-root img, .mbc-root canvas, .mbc-root svg { max-width:100%; }

@media (max-width:900px){
  .mbc-grid { gap:16px; }
}
@media (max-width:600px){
  .mbc-grid { gap:14px; }
  .mbc-panel { padding:14px; }
  /* a shorter, landscape-ish preview so the controls stay reachable on a phone
     (overrides the inline pixel height the viewer sets in JS) */
  .mbc-viewer { height:62vw !important; min-height:280px; max-height:440px; }
  /* one control per row so sliders + number inputs can't overflow a narrow screen */
  .mbc-fields { grid-template-columns:1fr; gap:10px; }
  .mbc-contact .row { grid-template-columns:1fr; }
  .mbc-actions { flex-direction:column; }
  .mbc-actions .mbc-btn:first-child { flex:none; }
  .mbc-quote-recap { flex-direction:column; align-items:flex-start; gap:6px; }
  .mbc-quote-recap strong { white-space:normal; }
  .mbc-range .num { width:58px; }
  .mbc-badge { padding:6px 9px; }
  .mbc-badge .val { font-size:17px; }
  .mbc-tab { padding:8px 12px 7px; }
}