/* 3D building analysis page (building.html) — complements style.css and frame.css (same visual language) */
.b3-page{padding:24px 20px 60px}
.b3-beta{display:inline-block;vertical-align:middle;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:#ffffff22;border:1px solid #ffffff55;border-radius:999px;padding:2px 10px;margin-inline-start:6px}
.b3-note{background:#fff8e6;border:1px solid #f3dfa8;color:#6b5210;border-radius:10px;padding:10px 14px;font-size:14px;margin:0 0 16px}
.b3-main{display:grid;grid-template-columns:360px minmax(0,1fr);gap:20px;align-items:start}
.b3-centre{grid-column:2;grid-row:1;min-width:0}
.b3-side{grid-column:1;grid-row:1;min-width:0}
.b3-viewer{overflow:hidden}
.b3-tools{gap:5px}
.b3-tools .grp{display:inline-flex;gap:4px;flex-wrap:wrap;align-items:center;background:none;padding:0;font-size:inherit;font-weight:inherit}
.b3-tools label{display:inline-flex;gap:6px;align-items:center;font-size:13px;color:#33465c;white-space:nowrap}
.b3-tools input[type=range]{width:110px;padding:0}
.b3-vp{position:relative;height:560px;background:#f6f9fc;touch-action:none;user-select:none;-webkit-user-select:none;overflow:hidden}
.b3-vp canvas{display:block;width:100%;height:100%;outline:none}
.b3-vp.t-add canvas,.b3-vp.t-brace canvas,.b3-vp.t-delete canvas{cursor:crosshair}
.b3-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.b3-labels span{position:absolute;transform:translate(-50%,-50%);font:600 11px/1.2 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:#33465c;white-space:nowrap;
  text-shadow:0 0 3px #fff,0 0 3px #fff,0 0 2px #fff;direction:ltr;unicode-bidi:isolate}
.b3-labels span.v{font-weight:700;font-size:11.5px}
.b3-labels span.ax{color:#8796aa;font-weight:700}
.b3-status{position:absolute;bottom:6px;left:10px;right:10px;font-size:12px;color:#5a6b80;pointer-events:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.b3-busy{position:absolute;inset:0;background:#f6f9fc99;display:flex;align-items:center;justify-content:center}
.b3-busy[hidden],.b3-pop[hidden]{display:none}
.b3-busy .spin{width:34px;height:34px;border-width:4px}
.b3-pop{position:absolute;z-index:5;width:300px;max-width:calc(100% - 16px);max-height:calc(100% - 16px);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 10px 30px #0b2e5c2e;padding:10px 12px;font-size:13px;color:var(--ink);direction:inherit}
html[dir=rtl] .b3-pop{direction:rtl}
.b3-pop .t{font-weight:700;color:var(--navy);font-size:14px;margin:0 22px 6px 0;display:flex;gap:6px;align-items:baseline;flex-wrap:wrap}
html[dir=rtl] .b3-pop .t{margin:0 0 6px 22px}
.b3-pop .x{position:absolute;top:6px;right:8px;border:0;background:none;font-size:20px;line-height:1;color:#8796aa;cursor:pointer;padding:2px 4px}
html[dir=rtl] .b3-pop .x{right:auto;left:8px}
.b3-pop .row{display:grid;grid-template-columns:110px 1fr;gap:6px;align-items:center;margin:5px 0}
.b3-pop .row label{color:#33465c;font-size:12.5px}
.b3-pop input,.b3-pop select{padding:5px 7px;font-size:13px}
.b3-pop .act{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.b3-pop .act button,.b3-pop .act a{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 9px;font:inherit;font-size:13px;font-weight:600;color:var(--navy);cursor:pointer;white-space:nowrap}
.b3-pop .act button:hover,.b3-pop .act a:hover{background:var(--sky);text-decoration:none}
.b3-pop .act .del{color:var(--bad)}
.b3-pop table{width:100%;border-collapse:collapse;font-size:12px;margin-top:6px}
.b3-pop th,.b3-pop td{padding:3px 4px;border-bottom:1px solid #edf1f6;text-align:end;white-space:nowrap;font-variant-numeric:tabular-nums}
.b3-pop th:first-child,.b3-pop td:first-child{text-align:start}
.b3-pop .muted{color:var(--muted);font-size:12px}
.b3-viewbar{gap:5px}
.b3-viewbar select{max-width:220px}
.b3-tabbody{padding:14px 16px;max-height:720px;overflow:auto}
.b3-tabbody .f{grid-template-columns:1fr 130px}
.b3-tabbody h5{margin:14px 0 8px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.b3-tabbody h5:first-child{margin-top:0}
.b3-tabbody input.bad{border-color:var(--bad);background:#fff6f5}
.b3-grid{width:100%;border-collapse:collapse;font-size:13px}
.b3-grid th{font-weight:600;color:var(--muted);text-align:start;padding:4px 3px;font-size:12px;white-space:nowrap}
.b3-grid td{padding:3px}
.b3-grid input,.b3-grid select{padding:5px 6px;font-size:13px;min-width:0}
.b3-grid .x{border:0;background:none;color:#c0392b;cursor:pointer;font-size:18px;line-height:1;padding:2px 4px}
.b3-tpl{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:6px}
.b3-tpl button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px;font:inherit;font-size:13px;font-weight:600;color:var(--navy);cursor:pointer;text-align:start;line-height:1.3}
.b3-tpl button:hover{background:var(--sky)}
.b3-tpl button small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.b3-res{margin-top:20px}
.b3-res .res-body{padding:18px 20px}
.b3-chart{max-width:640px}
.b3-chart svg{width:100%;height:auto;display:block;direction:ltr}
.b3-chart text{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.b3-filter{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:6px 0 8px;font-size:13px}
.b3-filter select,.b3-filter input{width:auto;padding:5px 7px;font-size:13px}
.b3-cases{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 10px}
.b3-cases span{font-size:12.5px;border-radius:8px;padding:4px 8px;background:var(--ok-bg);color:var(--ok)}
.b3-cases span.nok{background:var(--bad-bg);color:var(--bad)}
.b3-tbl{overflow-x:auto;max-width:100%}
.b3-tbl table.checks td,.b3-tbl table.checks th{padding:5px 5px;white-space:nowrap}
.b3-tbl tr.sel td{background:#eef5ff}
.b3-tbl tr[data-m]{cursor:pointer}
.b3-res .dz{display:flex;gap:4px;flex-wrap:nowrap}
.b3-res .dz a{font-size:12px;padding:3px 7px;border-radius:7px;border:1px solid var(--line);background:#fff;color:var(--navy);font-weight:600;white-space:nowrap}
.b3-res .dz a:hover{background:var(--sky);text-decoration:none}
.b3-res .n{direction:ltr;unicode-bidi:isolate}
.b3-res details{margin:10px 0}
.b3-res summary{cursor:pointer;font-weight:700;color:var(--navy)}
.b3-btns{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 12px}
.b3-btns .btn{padding:8px 12px;font-size:14px}
.b3-legend-bar{display:inline-block;width:110px;height:8px;border-radius:4px;vertical-align:middle;background:linear-gradient(90deg,#2c7bb6,#abd9e9,#ffffbf,#fdae61,#d7191c)}
.b3-warn{background:#fff8e6;border:1px solid #f3dfa8;color:#6b5210;border-radius:10px;padding:8px 12px;font-size:13.5px;margin:6px 0 10px}
@media (max-width:1020px){
  .b3-main{grid-template-columns:1fr}
  .b3-centre,.b3-side{grid-column:1}
  .b3-centre{grid-row:1}
  .b3-side{grid-row:2}
  .b3-vp{height:440px}
  .b3-tabbody{max-height:none}
}
@media (max-width:600px){
  .b3-page{padding:12px 12px 40px}
  .b3-vp{height:380px}
  .b3-tools .lab{display:none}
  .b3-tools input[type=range]{width:80px}
  .b3-tabbody{padding:12px}
  .b3-tabbody .f{grid-template-columns:1fr 110px}
  .b3-res .res-body{padding:14px 12px}
  .b3-pop{width:auto;left:8px!important;right:8px;top:auto!important;bottom:8px;max-height:60%}
  .b3-tpl{grid-template-columns:1fr}
}