#js-tool-container-triangular-roof-truss-calculator .tf-app { display: flex; flex-direction: column; gap: 22px; --tf-accent: #1f5f8b; --tf-accent-soft: #e8f0f7; --tf-tension: #b3541e; --tf-comp: #1f6f54;  --tf-track: #e7ebf2; --tf-board: #f8fafc;}
#js-tool-container-triangular-roof-truss-calculator[data-theme="dark"] .tf-app { --tf-accent: #6db3e8; --tf-accent-soft: #22303c; --tf-tension: #e8935a; --tf-comp: #58c49a;  --tf-track: #2a3140; --tf-board: #11161f;}
#js-tool-container-triangular-roof-truss-calculator .tb-fieldset { margin: 0 0 14px; padding: 14px 14px 6px; border: 1px solid var(--border-color); border-radius: 12px; background: var(--surface); }
#js-tool-container-triangular-roof-truss-calculator .tb-fieldset legend { padding: 0 6px; font-size: 13px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.2px; }
#js-tool-container-triangular-roof-truss-calculator .tb-fieldset .tb-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
#js-tool-container-triangular-roof-truss-calculator .tb-field select,
#js-tool-container-triangular-roof-truss-calculator .tb-field input { min-width: 0; }
#js-tool-container-triangular-roof-truss-calculator .tf-hero { border-left-color: var(--tf-accent); }
#js-tool-container-triangular-roof-truss-calculator .tf-res-force { font-variant-numeric: tabular-nums; letter-spacing: 0.5px; }
#js-tool-container-triangular-roof-truss-calculator .tf-scales { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; padding: 14px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border-color); }
#js-tool-container-triangular-roof-truss-calculator .tf-scale-row { display: flex; flex-direction: column; gap: 7px; }
#js-tool-container-triangular-roof-truss-calculator .tf-scale-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; font-size: 13px; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tf-scale-name { font-weight: 600; }
#js-tool-container-triangular-roof-truss-calculator .tf-res-pct { font-weight: 800; font-size: 17px; color: var(--text-primary); font-variant-numeric: tabular-nums; }
#js-tool-container-triangular-roof-truss-calculator .tf-track { position: relative; }
#js-tool-container-triangular-roof-truss-calculator .tf-track::after { content: ""; position: absolute; top: 0; bottom: 0; left: 66.67%; width: 2px; background: var(--border-color); }
#js-tool-container-triangular-roof-truss-calculator .tf-fill { display: block; height: 100%; min-width: 2px; border-radius: 999px; transition: width 0.3s ease; }
#js-tool-container-triangular-roof-truss-calculator .tf-fill-ok { background: var(--success); }
#js-tool-container-triangular-roof-truss-calculator .tf-fill-warn { background: var(--warning); }
#js-tool-container-triangular-roof-truss-calculator .tf-fill-bad { background: var(--danger); }
#js-tool-container-triangular-roof-truss-calculator .tf-gov { margin: 2px 0 0; font-size: 13px; line-height: 1.5; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger { margin-top: 16px; display: flex; flex-direction: column; }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 9px 2px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-row:last-child { border-bottom: none; }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-label { color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-vals { font-weight: 700; color: var(--text-primary); font-variant-numeric: tabular-nums; white-space: nowrap; }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-unit { font-weight: 500; color: var(--text-secondary); margin: 0 3px; }
#js-tool-container-triangular-roof-truss-calculator .tf-ledger-sep { font-weight: 400; color: var(--text-muted); padding: 0 2px; }
#js-tool-container-triangular-roof-truss-calculator .tf-canvas-wrap { width: 100%; }
#js-tool-container-triangular-roof-truss-calculator .tf-canvas-desc { margin-top: 10px; font-size: 13px; line-height: 1.5; color: var(--text-muted); }
#js-tool-container-triangular-roof-truss-calculator .tf-clegend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; }
#js-tool-container-triangular-roof-truss-calculator .tf-clegend-item { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tf-dot { width: 10px; height: 10px; border-radius: 3px; background: var(--border-color); }
#js-tool-container-triangular-roof-truss-calculator .tf-dot-tension { background: var(--tf-tension); }
#js-tool-container-triangular-roof-truss-calculator .tf-dot-comp { background: var(--tf-comp); }
#js-tool-container-triangular-roof-truss-calculator .tf-dot-load { background: var(--accent-primary); }
#js-tool-container-triangular-roof-truss-calculator .tf-table-wrap { overflow-x: auto; margin-top: 6px; }
#js-tool-container-triangular-roof-truss-calculator .tf-table { width: 100%; border-collapse: collapse; font-size: 14px; }
#js-tool-container-triangular-roof-truss-calculator .tf-table th,
#js-tool-container-triangular-roof-truss-calculator .tf-table td { padding: 9px 10px; border-bottom: 1px solid var(--border-color); }
#js-tool-container-triangular-roof-truss-calculator .tf-table th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--text-muted); text-align: left; white-space: nowrap; }
#js-tool-container-triangular-roof-truss-calculator .tf-table td { font-variant-numeric: tabular-nums; white-space: nowrap; }
#js-tool-container-triangular-roof-truss-calculator .tf-table td:first-child { font-weight: 700; }
#js-tool-container-triangular-roof-truss-calculator .tf-table-caption { caption-side: top; text-align: left; padding: 4px 2px 10px; font-size: 12px; color: var(--text-muted); }
#js-tool-container-triangular-roof-truss-calculator .tf-cell-tension { color: var(--tf-tension); font-weight: 700; }
#js-tool-container-triangular-roof-truss-calculator .tf-cell-comp { color: var(--tf-comp); font-weight: 700; }
#js-tool-container-triangular-roof-truss-calculator .tf-cell-ok { color: var(--success); font-weight: 700; }
#js-tool-container-triangular-roof-truss-calculator .tf-cell-no { color: var(--danger); font-weight: 700; }
#js-tool-container-triangular-roof-truss-calculator .tf-row-crit td { background: var(--tf-accent-soft); }
#js-tool-container-triangular-roof-truss-calculator .tf-limits { margin: 14px 0 0; padding: 12px 14px; border-left: 3px solid var(--warning); background: var(--surface); border-radius: 0 10px 10px 0; font-size: 13px; line-height: 1.55; color: var(--text-secondary); }
@media (max-width: 640px) {
  #js-tool-container-triangular-roof-truss-calculator .tb-fieldset .tb-grid-2 { grid-template-columns: minmax(0, 1fr); gap: 0; }
  #js-tool-container-triangular-roof-truss-calculator .tb-fieldset { padding: 12px 12px 4px; }
  #js-tool-container-triangular-roof-truss-calculator .tf-ledger-row { flex-direction: column; gap: 3px; padding: 10px 2px; }
  #js-tool-container-triangular-roof-truss-calculator .tf-ledger-vals { white-space: normal; }
  #js-tool-container-triangular-roof-truss-calculator .tf-table { font-size: 13px; }
}
#js-tool-container-triangular-roof-truss-calculator .tb-hero { padding: 16px 18px 14px; border: 1px solid var(--border-color); border-left: 5px solid var(--tf-accent); border-radius: 14px; background: var(--surface); }
#js-tool-container-triangular-roof-truss-calculator .tb-hero-label { display: block; margin-bottom: 6px; font-size: 11.5px; font-weight: 700; letter-spacing: 0.7px; text-transform: uppercase; color: var(--text-muted); }
#js-tool-container-triangular-roof-truss-calculator .tb-hero-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; }
#js-tool-container-triangular-roof-truss-calculator .tb-hero-value { font-size: clamp(34px, 6vw, 50px); font-weight: 800; line-height: 1.04; letter-spacing: 0.3px; color: var(--text-primary); font-variant-numeric: tabular-nums; }
#js-tool-container-triangular-roof-truss-calculator .tb-unit { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tb-hero-note { margin: 8px 0 0; font-size: 13px; line-height: 1.55; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tb-status { margin-top: 12px; padding: 10px 14px; border: 1px solid var(--border-color); border-left: 4px solid var(--accent-primary, #2f66ff); border-radius: 10px; background: var(--surface); font-size: 14px; line-height: 1.5; color: var(--text-secondary); }
#js-tool-container-triangular-roof-truss-calculator .tb-status.success { border-left-color: var(--success, #18996b); }
#js-tool-container-triangular-roof-truss-calculator .tb-status.warn { border-left-color: var(--warning, #f5a524); }
#js-tool-container-triangular-roof-truss-calculator .tb-status.danger { border-left-color: var(--danger, #e5484d); }
#js-tool-container-triangular-roof-truss-calculator .tb-scale-track { height: 9px; border-radius: 999px; background: var(--tf-track); overflow: hidden; }
#js-tool-container-triangular-roof-truss-calculator .tb-scale-fill { display: block; height: 100%; min-width: 2px; border-radius: 999px; transition: width 0.3s ease; }
#js-tool-container-triangular-roof-truss-calculator .tb-canvas-wrap { background: var(--tf-board); border: 1px solid var(--border-color); border-radius: 16px; }
#js-tool-container-triangular-roof-truss-calculator .tb-canvas-wrap canvas { display: block; width: 100%; height: 100%; }