/* BuildNFO Core — construction theme */
.buildnfo-calc{--bn-brick:#b0442d;--bn-amber:#f5aa28;--bn-steel:#3a4856;--bn-ink:#1a1410;--bn-cream:#f5eee4;
  max-width:560px;border:1px solid #e6ddd0;border-radius:14px;padding:22px 24px;background:#fff;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;box-shadow:0 4px 18px rgba(26,20,16,.06)}
.buildnfo-title{margin:0 0 4px;font-size:20px;font-weight:700;color:var(--bn-ink)}
.buildnfo-desc{margin:0 0 16px;font-size:13px;color:#6b6258}
.buildnfo-fields{display:grid;gap:12px;margin-bottom:16px}
.buildnfo-field{display:flex;flex-direction:column;gap:5px}
.buildnfo-field span{font-size:13px;font-weight:600;color:var(--bn-steel)}
.buildnfo-field input{padding:10px 12px;border:1px solid #d9cfc0;border-radius:8px;font-size:15px;background:#fbf9f5}
.buildnfo-field input:focus{outline:none;border-color:var(--bn-amber);box-shadow:0 0 0 3px rgba(245,170,40,.18)}
.buildnfo-btn{appearance:none;border:0;cursor:pointer;background:var(--bn-brick);color:#fff;
  font-weight:700;font-size:15px;padding:12px 20px;border-radius:9px;width:100%;transition:filter .15s}
.buildnfo-btn:hover{filter:brightness(1.08)}
.buildnfo-result{margin-top:16px;padding:14px 16px;border-radius:9px;background:#fef6e6;border:1px solid #f5d99b;
  font-size:15px;color:var(--bn-ink);min-height:1px;display:none}
.buildnfo-result.show{display:block}
.buildnfo-result b{color:var(--bn-brick)}
.buildnfo-error{padding:12px 16px;border-radius:8px;background:#fde8e3;color:#8a1c0a;font-size:14px}
/* BuildNFO premium calculator UI */
.buildnfo-calc{
  background:#fff8ee;
  border:1px solid #ead9c5;
  border-radius:22px;
  padding:24px;
  margin:22px 0;
  box-shadow:0 14px 35px rgba(74,45,22,.08);
  max-width:760px;
}
.buildnfo-title{color:#A63D2F;margin:0 0 8px;font-size:26px;line-height:1.2}
.buildnfo-desc{color:#625950;margin:0 0 18px;line-height:1.6}
.buildnfo-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:18px}
.buildnfo-field span{display:block;font-weight:800;color:#30363D;margin-bottom:7px;font-size:14px}
.buildnfo-field input{width:100%;border:1px solid #ead9c5;border-radius:12px;padding:12px;background:#fff;color:#30363D}
.buildnfo-btn{background:#D8A63C;color:#1f1b16;border:0;border-radius:13px;padding:13px 18px;font-weight:900;cursor:pointer}
.buildnfo-btn:hover{filter:brightness(.96)}
.buildnfo-result{display:none;margin-top:18px;background:#30363D;color:#fff;border-radius:16px;padding:16px;line-height:1.8}
.buildnfo-result.show{display:block}
.buildnfo-result span{text-transform:capitalize;color:#D8A63C;font-weight:800}
@media(max-width:760px){.buildnfo-fields{grid-template-columns:1fr}.buildnfo-calc{padding:18px}}
.buildnfo-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.buildnfo-mini{border:1px solid #d8a63c;background:#fff;color:#30363d;border-radius:10px;padding:9px 12px;font-weight:800;cursor:pointer}
.buildnfo-mini:hover{background:#fff4d6}
.buildnfo-saved-card{border:1px solid #ead9c5;background:#fffdf8;border-radius:22px;padding:18px;margin:20px 0;box-shadow:0 12px 30px rgba(48,54,61,.07)}
.buildnfo-saved-head strong{display:block;color:#A63D2F;font-size:22px;margin-bottom:4px}.buildnfo-saved-head p{margin:0 0 12px;color:#625950}

.buildnfo-custom-calc{border-top:5px solid #D8A63C}.buildnfo-custom-calc .buildnfo-title:after{content:' Custom';font-size:12px;background:#30363D;color:#fff;border-radius:999px;padding:4px 8px;margin-left:8px;vertical-align:middle}

/* Help panel */
.buildnfo-help{margin:0 0 14px;border:1px solid #e6e2f5;border-radius:8px;background:#faf9ff}
.buildnfo-help summary{cursor:pointer;padding:10px 14px;font-weight:600;color:#4f46e5;list-style:none}
.buildnfo-help summary::-webkit-details-marker{display:none}
.buildnfo-help summary::before{content:'\25B8';margin-right:8px;display:inline-block;transition:transform .2s}
.buildnfo-help[open] summary::before{transform:rotate(90deg)}
.buildnfo-help-body{padding:4px 16px 14px;font-size:14px;color:#3a342e}
.buildnfo-help-body code{background:#efeefc;color:#4f46e5;padding:2px 6px;border-radius:4px}
.buildnfo-help-inputs{margin:6px 0 0;padding-left:20px}
.buildnfo-help-inputs li{margin:2px 0}
/* Result grid */
.buildnfo-result-grid{display:flex;flex-direction:column;gap:8px}
.buildnfo-result-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:8px 12px;background:#f6f5ff;border:1px solid #e6e2f5;border-radius:8px}
.buildnfo-result-row .bnfo-rk{color:#5b6172;font-size:14px}
.buildnfo-result-row .bnfo-rv{font-size:18px;color:#1e1b4b}
.buildnfo-result-row .bnfo-rv small{font-size:12px;color:#8b6bff;font-weight:600}