:root{--bg: #0f1720;--panel: #17222f;--panel-2: #1e2c3b;--line: #2b3b4d;--field-border: #6b819a;--placeholder: #9db0c0;--disabled-text: #8294a6;--text: #e6edf3;--muted: #8fa3b5;--accent: #d98c4a;--ok: #4cb782;--warn: #e0b24a;--ko: #f0766d;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;background:var(--bg)}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:24px;padding:0 20px;height:48px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-weight:700;letter-spacing:.5px}.brand span{color:var(--accent)}.page{padding:20px}:root{--radius: 8px;--focus: #7cc4ff;--comp: rgba(92, 156, 230, .22)}html,body,#root{height:100%}body{font-size:14px;line-height:1.45}h1{font-size:24px;margin:0 0 4px;letter-spacing:.2px}h2{font-size:18px;margin:0 0 12px}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.sr-only{position:absolute;margin:-1px;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#0f1720;padding:8px 12px;z-index:100}.skip:focus{left:8px;top:8px}.muted{color:var(--muted)}.small{font-size:12px}.spacer{flex:1}.app-shell{height:100vh;min-height:0;overflow:hidden}html,body{overflow:hidden}#main{flex:1;min-height:0;display:flex;flex-direction:column;overflow-y:auto}.topbar{flex:none}.topbar nav a{color:var(--muted);padding:14px 4px;border-bottom:2px solid transparent}.topbar nav a.active{color:var(--text);border-bottom-color:var(--accent)}.brand{display:flex;align-items:center;gap:10px}.demo-badge{white-space:nowrap;background:#e0b24a26;color:var(--warn);border:1px solid var(--warn);border-radius:999px;padding:4px 12px;cursor:pointer;font-size:12px}.btn{background:var(--panel-2);border:1px solid var(--field-border);border-radius:6px;padding:7px 14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:disabled{color:var(--disabled-text);border-style:dashed;cursor:not-allowed}.btn.primary:disabled{background:var(--panel-2);border-color:var(--field-border);color:var(--disabled-text)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#1a0f05;font-weight:600}.btn.primary:hover:not(:disabled){background:#e59a5c}.btn.primary.alt{background:transparent;color:var(--accent)}.btn.primary.alt:hover:not(:disabled){background:#d98c4a26}.btn.danger{color:var(--ko)}.btn.danger:hover:not(:disabled){border-color:var(--ko)}.btn.small{padding:3px 10px;font-size:12px}.btn[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.btn-row{display:flex;gap:8px;flex-wrap:wrap}.link-btn{background:none;border:0;color:var(--accent);cursor:pointer;padding:2px 0;font-size:12px;text-decoration:underline}.page.home{max-width:1180px;width:100%;margin:0 auto;padding:28px 20px 48px}.home-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:20px}.filters{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}.chip{border:1px solid var(--field-border);background:transparent;border-radius:999px;padding:4px 14px;cursor:pointer;color:var(--muted)}.chip.on{background:var(--panel-2);color:var(--text);border-color:var(--accent)}.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;position:relative;border-top:3px solid var(--accent);transition:transform .15s,border-color .15s}.card.concrete{border-top-color:#5c9ce6}.card.connection{border-top-color:#8aa88f}.card:hover{transform:translateY(-2px);border-color:var(--accent)}.card-main{padding:14px 16px 8px;display:flex;flex-direction:column;gap:6px;flex:1}.card-title{font-weight:600;font-size:16px}.card-desc{color:var(--muted);font-size:13px}.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px;gap:8px;flex-wrap:wrap}.card-actions{display:flex;gap:8px;padding:8px 16px 12px}.tag{align-self:flex-start;font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--accent)}.tag.concrete{color:#7db3f0}.tag.connection{color:#a9c7ae}.badge{font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;border:1px solid;white-space:nowrap}.badge.ok{color:var(--ok);border-color:var(--ok);background:#4cb7821a}.badge.warn{color:var(--warn);border-color:var(--warn);background:#e0b24a1a}.badge.ko{color:var(--ko);border-color:var(--ko);background:#e5584f1a}.pill{font-size:11px;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:1px 8px;margin-left:8px;font-weight:500}.empty-state{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:6px;color:var(--muted);padding:24px;border:1px dashed var(--line);border-radius:var(--radius);height:100%;min-height:120px}.empty-state.big{padding:56px 24px}.empty-state strong{color:var(--text)}.skeleton{background:linear-gradient(90deg,var(--panel) 25%,var(--panel-2) 50%,var(--panel) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:var(--radius);padding:24px;color:var(--muted);margin:20px}.skeleton-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:14px}.card-sk{height:130px;margin:0}@keyframes shimmer{to{background-position:-200% 0}}.banner{display:flex;gap:16px;justify-content:space-between;align-items:flex-start;padding:12px 16px;border-radius:var(--radius);border:1px solid;margin:10px 0}.banner.error{background:#e5584f1a;border-color:var(--ko)}.banner.info{background:#5c9ce61a;border-color:#5c9ce6}.banner p{margin:4px 0 0}.banner ul{margin:6px 0 0;padding-left:18px}.banner-actions{display:flex;gap:8px;flex-wrap:wrap;flex:none}.editor-page>.banner{margin:0;border-radius:0;border-left:0;border-right:0}.modal{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:0;width:min(480px,calc(100vw - 32px))}.modal::backdrop{background:#050a0fb3}.modal-body{padding:22px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:10px;min-width:0}.field label{font-size:12px;color:var(--muted)}.field-input{position:relative;display:flex;align-items:center}.field input,.field select,.field textarea{width:100%;background:var(--bg);border:1px solid var(--field-border);border-radius:6px;padding:6px 10px;min-width:0}.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--text)}.field input::placeholder,.field textarea::placeholder,input[type=search]::placeholder{color:var(--placeholder);opacity:1}.field input{padding-right:46px;font-variant-numeric:tabular-nums}.field .unit{position:absolute;right:10px;color:var(--muted);font-size:12px;pointer-events:none}.field.invalid input{border-color:var(--ko);border-width:2px;padding:5px 45px 5px 9px}.field-msg{font-size:12px;color:var(--muted)}.field-msg.err{color:var(--ko);font-weight:600}.field.compact{margin:0;position:relative}.field.compact label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.field.compact input{padding:3px 6px}.field.compact .unit{display:none}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.toggle{display:flex;gap:8px;align-items:center;margin:4px 0 10px;cursor:pointer;font-size:13px}.toggle input{accent-color:var(--accent);width:18px;height:18px}fieldset.group{border:1px solid var(--line);border-radius:6px;padding:8px 12px 6px;margin:0 0 10px}fieldset.group legend{font-size:12px;color:var(--muted);padding:0 6px}.row-edit{display:flex;gap:8px;align-items:center;margin-bottom:6px}.row-edit .field{flex:1}.acc{border-bottom:1px solid var(--line)}.acc summary{cursor:pointer;padding:11px 4px;font-weight:600;list-style:none;display:flex;justify-content:space-between}.acc summary:after{content:"+";color:var(--accent)}.acc[open] summary:after{content:"−"}.acc summary::-webkit-details-marker{display:none}.acc-body{padding:4px 4px 10px}.editor-page{display:flex;flex-direction:column;flex:1;min-height:0}.editor-bar{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}.back{color:var(--muted)}.back:hover{color:var(--accent)}.title-input{background:transparent;border:1px solid transparent;border-radius:6px;padding:5px 8px;font-weight:600;font-size:16px;min-width:200px;flex:0 1 380px}.title-input:hover,.title-input:focus{border-color:var(--field-border);background:var(--bg)}.save-state{font-size:12px;color:var(--muted)}.save-state.saved:before{content:"●";color:var(--ok)}.save-state.dirty:before,.save-state.saving:before{content:"●";color:var(--warn)}.save-state.error{color:var(--ko)}.save-state.error:before{content:"●"}.panel-tabs{display:none;background:var(--panel);border-bottom:1px solid var(--line)}.panel-tabs button{flex:1;background:none;border:0;padding:10px;cursor:pointer;color:var(--muted);border-bottom:2px solid transparent}.panel-tabs button.on{color:var(--text);border-bottom-color:var(--accent)}.editor{display:grid;grid-template-columns:320px minmax(0,1fr) 390px;flex:1;min-height:0;grid-template-rows:minmax(0,1fr)}.col{overflow-y:auto;min-height:0;position:relative}.col-form{background:var(--panel);border-right:1px solid var(--line);padding:4px 14px 24px}.col-results{background:var(--panel);border-left:1px solid var(--line);padding:14px}.col-view{display:flex;flex-direction:column;gap:10px;padding:12px;overflow-y:auto}.view-tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap;flex:none}.view-tools .toggle{margin:0}.canvas-box{position:relative;flex:1;min-height:360px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#0c131b}.canvas-box canvas{outline:none}.canvas-box canvas:focus-visible{outline:2px solid var(--focus);outline-offset:-2px}.tooltip{position:absolute;background:#0f1720f0;border:1px solid var(--line);border-radius:6px;padding:6px 10px;pointer-events:none;display:flex;flex-direction:column;font-size:12px;z-index:5}.tooltip .ok{color:var(--ok)}.tooltip .warn{color:var(--warn)}.tooltip .ko{color:var(--ko)}.legend{position:absolute;left:10px;bottom:8px;font-size:11px;color:var(--muted);display:flex;gap:10px;align-items:center;pointer-events:none}.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:-4px}.dot.ok{background:var(--ok)}.dot.warn{background:var(--warn)}.dot.ko{background:var(--ko)}.view-block{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}.group-title{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:14px 0 8px;font-weight:600}.view-block .group-title{margin-top:0}.svg-box{height:360px;display:flex;justify-content:center}.section-svg{height:100%;max-width:100%;touch-action:none}.section-svg.add-mode{cursor:crosshair}.section-svg .concrete-shape{fill:#26384b;stroke:#6f87a0}.section-svg .comp-zone{fill:var(--comp);pointer-events:none}.section-svg .cover-line{fill:none;stroke:#55697e;stroke-dasharray:6 5;pointer-events:none}.section-svg .stirrup{fill:none;stroke:#8ea3b8;pointer-events:none;opacity:.85}.section-svg .bar{fill:var(--accent);stroke:#3a2210;stroke-width:1.5;cursor:grab}.section-svg .bar:hover,.section-svg .bar.sel{fill:#f0b074}.section-svg .bar:focus-visible{outline:none;stroke:var(--focus);stroke-width:3}.section-svg .bar-ring{fill:none;stroke:var(--focus);stroke-dasharray:5 4;pointer-events:none}.section-svg .neutral line{stroke:#7db3f0;stroke-dasharray:10 6}.section-svg .neutral text{fill:#7db3f0}.section-svg .dims line{stroke:#6f87a0}.section-svg .dims text{fill:var(--muted)}.section-svg .strain polygon{fill:#7db3f059;stroke:#7db3f0;stroke-width:2}.section-svg .strain text{fill:var(--text)}.section-svg .strain .muted-txt{fill:var(--muted)}.section-svg .strain .axis{stroke:#55697e}.chart{margin:0}.chart figcaption{font-size:12px;color:var(--muted);margin-bottom:8px}.chart-box{height:340px}.summary{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:var(--radius);border:1px solid;margin-bottom:8px}.summary.ok{border-color:var(--ok);background:#4cb7821a}.summary.warn{border-color:var(--warn);background:#e0b24a1a}.summary.ko{border-color:var(--ko);background:#e5584f1a}.summary-verdict{font-size:20px;font-weight:800;letter-spacing:.5px}.summary.ok .summary-verdict{color:var(--ok)}.summary.warn .summary-verdict{color:var(--warn)}.summary.ko .summary-verdict{color:var(--ko)}.summary-rate strong{font-size:18px}.summary-gov{color:var(--muted);font-size:12px}.summary.stale{opacity:.75}.summary-stale{margin-left:auto;font-size:12px;color:var(--muted)}.warnings{margin:8px 0;padding:8px 12px 8px 28px;font-size:12px;color:var(--warn);border:1px solid rgba(224,178,74,.4);border-radius:6px}.checks{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.check{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 10px}.check.governing{border-color:var(--accent)}.check-head{display:flex;justify-content:space-between;gap:8px;align-items:flex-start;font-weight:500}.check-meta{display:flex;flex-direction:column;font-size:11.5px;color:var(--muted);margin-top:3px}.check-meta .clause{color:var(--muted)}.check-detail{margin-top:6px;border-top:1px dashed var(--line);padding-top:6px;font-size:12px}.check-detail dl,.kv{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:2px 14px}.check-detail dl>div,.kv>div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px solid rgba(43,59,77,.5);padding:2px 0}.check-detail dt,.kv dt{color:var(--muted)}.check-detail dd,.kv dd{margin:0;font-variant-numeric:tabular-nums}.note{color:var(--warn);margin:6px 0 0}.ubar{display:flex;align-items:center;gap:8px;margin-top:6px}.ubar-track{position:relative;flex:1;height:8px;background:var(--panel-2);border-radius:4px;overflow:hidden}.ubar-fill{height:100%;border-radius:4px;transition:width .25s}.ubar-fill.ok{background:var(--ok)}.ubar-fill.warn{background:var(--warn)}.ubar-fill.ko{background:var(--ko)}.ubar-mark{position:absolute;top:0;bottom:0;width:2px;background:var(--text);opacity:.6}.ubar-val{width:62px;text-align:right;font-weight:600;font-variant-numeric:tabular-nums;font-size:13px}.ubar-val.ok{color:var(--ok)}.ubar-val.warn{color:var(--warn)}.ubar-val.ko{color:var(--ko)}.table-wrap{overflow-x:auto;margin-top:14px}table.data{width:100%;border-collapse:collapse;font-size:12.5px;font-variant-numeric:tabular-nums}table.data caption{text-align:left;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.8px;padding-bottom:6px}table.data th,table.data td{padding:4px 6px;border-bottom:1px solid var(--line);text-align:left}table.data thead th{color:var(--muted);font-weight:500}table.data.bars tr.sel{background:#d98c4a1f}table.data.bars th[scope=row]{color:var(--muted);font-weight:500}@media(max-width:1180px){.editor{grid-template-columns:300px minmax(0,1fr);grid-template-rows:none;flex:none;align-items:start}.canvas-box{flex:none;height:clamp(360px,60vh,560px)}.col-results{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line)}.col{overflow-y:visible}}@media(max-width:860px){.panel-tabs{display:flex}.editor{display:block;flex:none}.editor>.col{display:none;border:0}.editor[data-panel=form]>.col-form,.editor[data-panel=view]>.col-view,.editor[data-panel=results]>.col-results{display:flex;flex-direction:column}.editor[data-panel=form]>.col-form,.editor[data-panel=results]>.col-results{display:block}.canvas-box{min-height:320px;height:360px;flex:none}.title-input{flex:1 1 100%}.banner{flex-direction:column}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.loads-recap{margin:0 0 8px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2);font-size:12.5px;line-height:1.6}.loads-recap-title{color:var(--muted)}.loads-recap-item{white-space:nowrap}.loads-recap .swatch{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;vertical-align:baseline}.legend.legend-loads{bottom:26px;right:10px;flex-wrap:wrap;row-gap:2px}.legend.legend-loads b{font-weight:600}.load-label{transform:translate(-50%,-50%);white-space:nowrap;pointer-events:none;font:600 11px/1.25 Inter,system-ui,sans-serif;text-align:center;padding:3px 7px;border-radius:6px;background:#0c131bdb;border:1px solid currentColor;transition:opacity .12s}.load-label small{display:block;font-weight:500;font-size:10px;color:var(--muted)}.load-label.dim{opacity:.45}.load-label.hot{background:#0c131bf5;box-shadow:0 0 0 2px currentColor;font-size:12px}.sign-legend{margin:6px 0 0}.section-svg .load-pill{fill:#0c131bdb}.section-svg .load{transition:opacity .12s}.section-svg .load.dim{opacity:.4}@media(max-width:860px){.legend.legend-loads{left:10px;right:10px;bottom:24px}.load-label{font-size:10px;padding:2px 5px}.load-label small{font-size:9px}}.field input:disabled{color:var(--disabled-text);-webkit-text-fill-color:var(--disabled-text);border-style:dashed;cursor:not-allowed;background:var(--panel-2)}.mode-switch{margin:0 0 10px;padding:8px 10px;border:1px dashed var(--line);border-radius:var(--radius)}.mode-switch p{margin:0 0 6px}.loads-panel{margin-bottom:10px}.loads-panel .btn-row{margin-bottom:8px}.load-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.load-row{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 10px 2px;cursor:default}.load-row.sel{border-color:#f8fafc;box-shadow:0 0 0 1px #f8fafc inset}.load-row.err{border-color:var(--ko);background:#e5584f12}.load-row-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;gap:8px}.load-row-head strong{color:#2dd4bf;font-size:13px}.load-row .field-msg.err{margin:0 0 8px}.load-errors{margin:6px 0;padding-left:16px}.self-weight{margin-top:10px;border-top:1px dashed var(--line);padding-top:8px}.beam-block{flex:none}.beam-editor{width:100%;overflow:hidden}.beam-editor svg{display:block;max-width:100%;user-select:none;-webkit-user-select:none}.beam-editor .bh{cursor:grab;outline:none}.beam-editor .bh:active{cursor:grabbing}.beam-editor .bh:focus-visible .bm-knob{stroke:var(--focus);stroke-width:3}.beam-editor .bm-body{cursor:move}.beam-editor .bm-knob{cursor:grab}.beam-editor .bm-note{fill:var(--muted);font-size:11px}.beam-editor .bm-label{font-size:11px;font-weight:600}.beam-editor .bm-axis line{stroke:#6f87a0}.beam-editor .bm-axis text{fill:var(--muted);font-size:10.5px;font-variant-numeric:tabular-nums}.beam-editor .bm-tip{fill:#e6edf3;font-size:11.5px;font-weight:600}.beam-editor .bm-title{fill:#e6edf3;font-size:12px;font-weight:600}.beam-editor .bm-sub{fill:var(--muted);font-weight:400;font-size:10.5px}.beam-editor .bm-bandbg{fill:#ffffff06;stroke:var(--line)}.beam-editor .bm-zero{stroke:#4a5d72}.beam-editor .bm-val{fill:#e6edf3;font-size:10.5px;font-variant-numeric:tabular-nums}.beam-editor .bm-cursorval{fill:#f0b074;font-size:11.5px;font-weight:600;font-variant-numeric:tabular-nums}.beam-charts{display:flex;flex-direction:column;gap:4px;margin-top:10px}.beam-charts.stale{opacity:.8}.bd-chart{height:170px}.legend.legend-beam{top:8px;bottom:auto;left:10px;max-width:calc(100% - 20px)}.load-label.beam-load-label{background:#0c131be6}.load-label.beam-load-label.bad{box-shadow:0 0 0 2px #ff6b6b}@media(max-width:860px){.legend.legend-beam{font-size:10px}.bd-chart{height:150px}}.member-kv{margin-top:8px}.page.catalog{max-width:1180px;width:100%;margin:0 auto;padding:24px 20px 48px}.catalog-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}.family{margin-bottom:28px}.family>h2{font-size:15px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 4px}.family>p{margin:0 0 12px;color:var(--muted);font-size:13px}.tiles{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}.tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;transition:transform .15s,border-color .15s}.tile button.tile-btn{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;gap:8px;padding:12px;flex:1;border-radius:var(--radius)}.tile:hover:not(.soon){transform:translateY(-2px);border-color:var(--accent)}.tile button.tile-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.tile.soon button.tile-btn{cursor:not-allowed}.tile-thumb{background:#0c131b;border:1px solid var(--line);border-radius:6px;height:120px;display:flex;align-items:center;justify-content:center;color:var(--muted)}.tile-thumb svg{width:100%;height:100%}.tile-title{font-weight:600}.tile-desc{color:var(--muted);font-size:12.5px}.tile-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}.tile-norm{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px}.tile-soon{font-size:11px;color:var(--warn);border:1px solid var(--warn);border-radius:999px;padding:1px 8px}.signs{margin:6px 0 10px;padding:8px 12px 8px 24px;font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:6px}.json-edit{width:100%;min-height:220px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;background:var(--bg);border:1px solid var(--field-border);border-radius:6px;padding:8px;resize:vertical}.json-edit.invalid{border-color:var(--ko)}.kv-list{margin:0;display:grid;grid-template-columns:1fr auto;gap:2px 14px;font-size:13px}.kv-list dt{color:var(--muted)}.kv-list dd{margin:0;text-align:right}.catalog-tools{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;margin-bottom:22px;padding:8px 0}@media(min-width:861px){.catalog-tools{position:sticky;top:0;z-index:3;background:var(--bg)}}.chips{display:flex;gap:8px;flex-wrap:wrap}.catalog-search{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.catalog-search input[type=search]{background:var(--panel);border:1px solid var(--field-border);border-radius:6px;padding:7px 12px;min-width:260px}.catalog-search input[type=search]:hover{border-color:var(--text)}.compact-toggle{margin:0;white-space:nowrap}.chip-n{margin-left:8px;font-size:11px;color:var(--accent);font-variant-numeric:tabular-nums}.chip.empty{border-style:dashed;color:var(--muted)}.tile-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.avail{flex:none;font-size:11px;font-weight:600;padding:1px 8px;border-radius:999px;border:1px solid;white-space:nowrap}.avail.ready{color:var(--ok);border-color:var(--ok);background:#4cb7821a}.avail.soon{color:var(--warn);border-color:var(--warn);background:#e0b24a14}.tile:not(.soon) .tile-thumb{border-color:#d98c4a59}.tile.soon .tile-thumb{filter:grayscale(.6)}.tile-thumb.small{height:84px;width:140px;flex:none}.pick-preview{display:flex;gap:14px;align-items:center;margin-bottom:14px;padding:10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2)}.pick-preview p{margin:2px 0}.badge.none{color:var(--muted);border-color:var(--line);background:transparent;font-weight:500}.form-title{margin-top:14px}.form-norms{margin:-4px 0 8px}.notice{margin:6px 0 10px;padding:8px 12px;border:1px solid rgba(224,178,74,.4);border-radius:6px;color:var(--warn)}.form-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:10px}.fgrid-full{grid-column:1 / -1;min-width:0}.fgrid-half{min-width:0}.list-field{border:1px solid var(--line);border-radius:var(--radius);margin:0 0 12px;padding:4px 10px 8px;min-width:0}.list-field legend{font-size:12px;color:var(--muted);padding:0 6px}.list-rows{list-style:none;margin:0;padding:0}.list-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end}.list-row.xy{grid-template-columns:1fr 1fr auto}.list-row .field{margin-bottom:6px}.icon-btn{height:30px;width:30px;justify-content:center;padding:0;margin-bottom:6px;font-size:16px;line-height:1}.list-foot{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.group-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.group-title .badge{text-transform:none;letter-spacing:0}.kv-row{display:contents}.not-ready{border:1px dashed var(--accent);border-radius:var(--radius);padding:18px;background:#d98c4a0f}.not-ready strong{color:var(--accent);font-size:15px}.not-ready p{margin:8px 0}.plan-list{margin:0 0 8px;padding-left:20px;color:var(--muted)}.view-fallback{height:100%;min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:24px;text-align:center;color:var(--muted)}.view-fallback strong{color:var(--text)}.view-fallback p{margin:0;max-width:46ch}.fallback-art{width:min(340px,80%);opacity:.75}.fallback-art svg{width:100%;height:auto;display:block}.util-legend{list-style:none;margin:0;padding:0;display:flex;gap:14px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.util-legend .sw{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px}.sw.ok{background:var(--ok)}.sw.warn{background:var(--warn)}.sw.ko{background:var(--ko)}.sw.na{background:#6d7a88}.tab-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-left:8px;background:var(--muted)}.tab-dot.ok{background:var(--ok)}.tab-dot.warn{background:var(--warn)}.tab-dot.ko{background:var(--ko)}.table-wrap:focus-visible{outline:2px solid var(--focus);outline-offset:2px}@media(max-width:860px){.catalog-search input[type=search]{min-width:0;width:100%}.catalog-search{width:100%}.page.catalog{padding:16px 16px 40px}.form-grid{grid-template-columns:1fr 1fr}.pick-preview{flex-direction:column;align-items:flex-start}.tile-thumb.small{width:100%}}@media(max-width:420px){.form-grid{grid-template-columns:1fr}}.list-row .field{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:0 6px}.list-row .field>.field-msg{grid-column:2}.list-row.xy .field{grid-template-columns:22px minmax(0,1fr)}.list-row .field label{color:var(--text);text-align:right;font-variant-numeric:tabular-nums}.json-edit.sm{min-height:90px}.modal.wide{width:min(940px,calc(100vw - 24px))}.subtabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:-6px 0 16px}.subtabs a{padding:8px 14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}.subtabs a.active{color:var(--text);border-bottom-color:var(--accent)}.lib-toolbar{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;margin-bottom:12px}.lib-search{flex:1 1 280px}.lib-search input[type=search]{width:100%}.lib-sort{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted)}.lib-sort select{background:var(--panel);color:var(--text);border:1px solid var(--field-border);border-radius:6px;padding:7px 10px}.lib-filters-btn{display:none}.active-filters{margin-bottom:12px;align-items:center}.lib-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:20px;align-items:start}.lib-facets{position:sticky;top:8px;max-height:calc(100vh - 24px);overflow:auto;padding-right:6px}.facet{border:0;border-top:1px solid var(--line);padding:10px 0 8px;margin:0;min-width:0}.facet legend{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);padding:0 6px 0 0}.facet ul{list-style:none;padding:0;margin:4px 0;display:flex;flex-direction:column;gap:2px}.facet-opt{all:unset;box-sizing:border-box;display:flex;justify-content:space-between;gap:8px;width:100%;padding:4px 8px;border-radius:6px;cursor:pointer;font-size:13px}.facet-opt:hover{background:var(--panel-2)}.facet-opt.on{background:var(--panel-2);box-shadow:inset 2px 0 0 var(--accent);color:var(--text)}.facet-opt:focus-visible{outline:2px solid var(--focus);outline-offset:1px}.facet-opt .chip-n{margin-left:0}.lib-count{margin:0 0 10px;min-height:18px}.lib-recent{margin-bottom:18px}.lib-recent h2{font-size:14px;margin:0 0 8px;color:var(--muted)}.lib-recent ul{list-style:none;padding:0 0 6px;margin:0 0 8px;display:flex;gap:10px;overflow-x:auto}.recent-btn{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;gap:4px;width:128px;padding:6px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}.recent-btn:hover{border-color:var(--accent)}.recent-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.recent-thumb{display:block;height:56px;background:#0c131b;border-radius:4px}.recent-thumb svg{width:100%;height:100%}.recent-label{font-size:11.5px;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tpl-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.tpl-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:border-color .15s,transform .15s;content-visibility:auto;contain-intrinsic-size:auto 330px}.tpl-card:hover{border-color:var(--accent);transform:translateY(-2px)}.tpl-open{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;gap:6px;padding:10px;width:100%;height:100%;border-radius:var(--radius)}.tpl-open:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.tpl-open .tile-thumb{height:104px}.tpl-title{font-weight:600;font-size:13.5px;line-height:1.3}.tpl-profiles{color:var(--accent);font-size:12.5px}.tpl-meta{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.tpl-res{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums;margin-top:auto}.star{position:absolute;top:14px;right:14px;width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line);background:#0c131bcc;color:var(--muted);cursor:pointer;padding:0}.star:hover,.star.on{color:var(--accent);border-color:var(--accent)}.tpl-actions .star{position:static;margin-right:auto}.lib-more{display:flex;justify-content:center;margin:18px 0}.tpl-preview{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px}.tpl-modes{margin-bottom:8px}.tpl-view{height:320px;background:#0c131b;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}.tpl-view>svg{width:100%;height:100%}.tpl-dl{margin:10px 0;display:grid;gap:4px}.tpl-dl div{display:grid;grid-template-columns:100px 1fr;gap:8px;font-size:13px}.tpl-dl dt{color:var(--muted)}.tpl-dl dd{margin:0}.tpl-tags{display:flex;gap:6px;flex-wrap:wrap}@media(max-width:860px){.lib-layout{grid-template-columns:1fr}.lib-filters-btn{display:inline-flex}.lib-facets{display:none;position:static;max-height:none}.lib-facets.open{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:4px 12px 8px}.tpl-preview{grid-template-columns:1fr}.tpl-view{height:240px}}@media(max-width:480px){.tpl-grid{grid-template-columns:1fr}.lib-sort{width:100%;justify-content:space-between}.tpl-actions{flex-wrap:wrap}.tpl-actions .btn.primary{width:100%;justify-content:center}}.tpl-canvas{width:100%;height:100%}.hollow-field{border:1px solid var(--line);border-radius:var(--radius);margin:0 0 12px;padding:6px 10px 8px;min-width:0}.hollow-field legend{font-size:12px;color:var(--muted);padding:0 6px}.hollow-field.invalid{border-color:var(--ko)}.hollow-top{display:grid;grid-template-columns:104px minmax(0,1fr);gap:10px;align-items:center;margin-bottom:8px}.hollow-top-info{display:flex;flex-direction:column;gap:3px;min-width:0}.hollow-svg{display:block;background:var(--bg);border:1px solid var(--line);border-radius:6px}.hollow-svg .hs-fill{fill:#8498ad;stroke:#0b121a;stroke-width:1}.hollow-svg.bad .hs-fill{fill:#e5584f59;stroke:var(--ko)}.hollow-svg .hs-dim{fill:var(--muted);font-size:8px}.hollow-props{display:grid;grid-template-columns:1fr 1fr;gap:1px 10px;margin:2px 0 0;font-size:11px;font-variant-numeric:tabular-nums}.hollow-props>div{display:flex;justify-content:space-between;gap:6px}.hollow-props dt{color:var(--muted)}.hollow-props dd{margin:0}.chip-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}.chip.small{padding:2px 10px;font-size:12px}.small-toggle{font-size:12px;margin:2px 0 8px}.hollow-free{border-left:2px solid var(--accent);padding-left:10px;margin-bottom:8px}.hollow-free-grid,.fgrid-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}.hollow-member-row{display:grid;grid-template-columns:1fr;gap:0}.hollow-free-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.field-issues{margin:4px 0 2px;padding:0 0 0 16px;font-size:11.5px;color:var(--ko)}.braces-field .brace-row{list-style:none;border-top:1px solid var(--line);padding:8px 0 2px}.braces-field .list-rows{padding:0;margin:0}.brace-head{display:flex;align-items:center;gap:8px;margin-bottom:4px}.brace-head .icon-btn{margin-left:auto}.braces-field .list-row .field,.braces-field .brace-row .field{display:flex;flex-direction:column}.truss-schema{margin:4px 0 8px;padding:4px 6px;background:var(--bg);border:1px solid var(--line);border-radius:6px}.truss-schema svg{display:block;width:100%;max-height:130px}.truss-schema figcaption{font-size:11px;color:var(--muted);display:flex;gap:6px;align-items:center;justify-content:center}.truss-schema .sw{display:inline-block;width:14px;height:4px;border-radius:2px;margin-left:8px}.ts-chord{fill:#5f7287;stroke:#0b121a}.ts-brace{stroke:#8498ad;fill:none}.ts-brace.tension,.truss-schema .sw.tension{stroke:#5aa7e0;background:#5aa7e0}.ts-brace.compression,.truss-schema .sw.compression{stroke:#e0905a;background:#e0905a}.ts-brace.over{opacity:.8;stroke-dasharray:none}.ts-bubble{fill:var(--panel-2);stroke:var(--line)}.ts-num{fill:var(--text);font-size:9px;font-weight:600}.ts-lbl{fill:var(--muted);font-size:8.5px}.ts-dim{stroke:var(--accent);stroke-width:1;stroke-dasharray:2 2}.validity{border:1px solid var(--line);border-radius:var(--radius);padding:2px 12px 10px;margin:8px 0}.validity.ko{border-color:var(--ko);background:#e5584f0f}.validity.ok{border-color:#4cb78280}.validity .group-title{margin-top:8px}.validity-head{display:flex;flex-direction:column;gap:4px;align-items:flex-start;margin:0 0 6px}.validity-list{margin:2px 0 0;padding-left:18px;font-size:12.5px;color:var(--ko)}table.hollow-bars th,table.hollow-bars td{vertical-align:top}table.hollow-bars{font-size:12px}.bar-sub{display:block;font-weight:400;max-width:90px}.indicative-note{margin:0 0 8px;padding:4px 0;font-size:12px;color:var(--muted);border-bottom:1px dashed var(--line)}.indicative-note:before{content:"ⓘ "}.confirm-banner{margin:0 0 8px;padding:6px 10px;font-size:12.5px;color:var(--muted);border:1px solid var(--line);border-radius:6px}.confirm-banner.has{color:var(--warn);border-color:#e0b24a80;background:#e0b24a14;font-weight:600}.confirm-banner a{color:var(--focus);font-weight:400;text-decoration:underline}.assumptions{margin:8px 0 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg)}.assumptions-details>summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;list-style:none}.assumptions-details>summary::-webkit-details-marker{display:none}.assumptions-details>summary:after{content:"+";color:var(--accent);margin-left:4px}.assumptions-details[open]>summary:after{content:"−"}.assumptions-title{margin:0;font-size:13px;font-weight:600;flex:1}.assump-count{font-size:11.5px;color:var(--muted)}.assump-count.has{color:var(--warn);font-weight:600}.assumptions-list{margin:0;padding:4px 12px 10px 28px;font-size:12.5px;display:flex;flex-direction:column;gap:8px}.assumptions-list li.to-confirm{border-left:3px solid var(--warn);margin-left:-12px;padding-left:9px;list-style-position:inside}.badge-confirm{display:inline-block;margin-right:6px;padding:0 7px;border-radius:999px;border:1px solid var(--warn);color:var(--warn);background:#e0b24a1f;font-size:11px;font-weight:700;white-space:nowrap}.results-body.stale{opacity:.85;filter:grayscale(.6)}.summary.na{border-color:var(--line);background:var(--panel-2)}.summary.stale .summary-verdict{color:var(--muted)}.summary.stale.ko{border-color:var(--ko);background:#e5584f1f}.summary.stale.ko .summary-stale-msg{color:#ff8a82;font-weight:600}.summary-stale-msg{font-size:12.5px;color:var(--text);font-weight:600;margin-top:2px}.summary.stale{opacity:1}.stale-chart-note{margin:0 0 6px;font-size:12px;color:#ff8a82}.tab-dot.na{background:var(--muted)}.banner.error strong,.banner.error p{color:#ff8a82}.tpl-info-col .indicative-note{margin-top:8px}.col-results .banner{flex-direction:column;align-items:stretch}.col-results .banner-actions{flex-wrap:wrap}main:focus{outline:none}.undo-toast{position:fixed;left:50%;bottom:20px;transform:translate(-50%);z-index:60;display:flex;align-items:center;gap:12px;max-width:min(560px,calc(100vw - 24px));padding:10px 14px;background:var(--panel-2);color:var(--text);border:1px solid var(--field-border);border-radius:var(--radius);box-shadow:0 6px 24px #00000080}.scene-desc{margin:0;font-size:12.5px;color:var(--muted)}.scene-desc summary{cursor:pointer;padding:4px 0;min-height:24px}.scene-desc p{margin:4px 0}.view-tools[role=group] .btn.small{min-height:28px}.back{display:inline-flex;align-items:center;min-height:32px;padding:0 4px}.link-btn{min-height:24px;padding:4px 2px;display:inline-flex;align-items:center}.chip.small,.btn.small{min-height:28px}.toggle,.facet-opt,.recent-btn,.subtabs a{min-height:24px}@media(max-width:860px){.lib-layout{grid-template-columns:minmax(0,1fr)}.lib-main{min-width:0}}@media(max-width:480px){.tpl-grid{grid-template-columns:minmax(0,1fr)}.tpl-card,.tpl-open{min-width:0}.tpl-title{overflow-wrap:anywhere}}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px;overflow-y:auto}.login-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);padding:24px 22px 22px;display:flex;flex-direction:column;gap:10px}.login-card label{font-weight:600;margin-top:6px}.login-card input{background:var(--bg);border:1px solid var(--field-border);border-radius:6px;padding:9px 10px;width:100%;box-sizing:border-box}.login-card input[aria-invalid=true]{border-color:var(--ko)}.login-card .btn{justify-content:center;margin-top:6px}.login-error{color:var(--ko);margin:0;font-weight:600}.login-notice{margin:0;color:var(--warn)}