:root{--ws-blue: #337ab7;--ws-blue-hover: #2c6aa0;--ws-blue-active: #285f8f;--ws-blue-rgb: 51, 122, 183;--ws-blue-text: #1f4a6f;--ws-blue-subtle: #e7f0f8;--ws-blue-border: #b9d2e8;--ws-green: #218559;--ws-green-hover: #1c7149;--ws-green-active: #1a6a45;--ws-green-rgb: 33, 133, 89;--ws-green-text: #145236;--ws-green-subtle: #e5f3ec;--ws-green-border: #b5dbc7;--ws-red: #c9473f;--ws-red-hover: #b03d36;--ws-red-active: #a3382f;--ws-red-rgb: 201, 71, 63;--ws-red-text: #7a2621;--ws-red-subtle: #fbebe9;--ws-red-border: #f0c3bf;--ws-amber: #d39e2a;--ws-surface: #eef2f8;--ws-glass: rgba(255, 255, 255, .58);--ws-glass-strong: rgba(255, 255, 255, .82);--ws-glass-hover: rgba(255, 255, 255, .74);--ws-glass-edge: rgba(255, 255, 255, .75);--ws-glass-line: rgba(20, 32, 60, .08);--ws-glass-blur: blur(18px) saturate(160%);--ws-glass-shadow: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 8px 28px rgba(28, 44, 84, .09);--ws-glass-shadow-hover: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 12px 32px rgba(var(--ws-blue-rgb), .16);--ws-backdrop: radial-gradient(1100px 620px at 8% -12%, rgba(var(--ws-blue-rgb), .2), transparent 62%), radial-gradient(820px 520px at 100% 4%, rgba(211, 158, 42, .17), transparent 58%), radial-gradient(900px 700px at 55% 112%, rgba(var(--ws-blue-rgb), .12), transparent 62%), var(--ws-surface)}:root{color-scheme:light}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-height:100vh;color:#0b0b0b;font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--ws-surface)}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:var(--ws-backdrop)}a{color:var(--ws-blue)}a:hover{color:var(--ws-blue-hover)}.wrap{max-width:1240px;margin:0 auto;padding:0 16px}.wrap.wide{max-width:1560px}.app{display:grid;grid-template-columns:264px minmax(0,1fr);gap:24px;max-width:1560px;margin:0 auto;padding:24px 16px 64px}.main{min-width:0}.sidebar{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 92px);overflow-y:auto}.sidebar:empty,.sidebar .pl-body:empty{display:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.top,.panel{-webkit-backdrop-filter:var(--ws-glass-blur);backdrop-filter:var(--ws-glass-blur)}.top{position:sticky;top:0;z-index:10;background:#ffffff8c;border-bottom:1px solid var(--ws-glass-line);box-shadow:0 1px #fffc inset}.top-inner{display:flex;align-items:center;flex-wrap:wrap;gap:8px 24px;min-height:60px;padding-top:10px;padding-bottom:10px}.brand{display:flex;align-items:center}.top-links{display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px;margin-left:auto;font-size:14px}body:not(.signed-out) .signed-out-only,body.signed-out .signed-in-only{display:none!important}.link{font:inherit;color:var(--ws-blue);background:none;border:none;padding:0;cursor:pointer}.link:hover{color:var(--ws-blue-hover);text-decoration:underline}.button{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font:inherit;font-size:14px;font-weight:500;color:#0b0b0b;text-decoration:none;background:#fffc;border:1px solid rgba(20,32,60,.14);border-radius:10px;cursor:pointer}.button:hover{background:#fff}.button.primary{color:#fff;background:var(--ws-blue);border-color:var(--ws-blue)}.button.primary:hover{background:var(--ws-blue-hover)}.button:disabled{opacity:.6;cursor:default}.pro-badge{padding:0 7px;font-size:11px;font-weight:600;line-height:18px;color:var(--ws-blue-text);background:var(--ws-blue-subtle);border:1px solid var(--ws-blue-border);border-radius:9px}body.pro .pro-badge{display:none}h1{font-size:28px;font-weight:600;margin:0 0 4px;letter-spacing:-.01em}h2{font-size:16px;font-weight:600;margin:0 0 12px}h3{font-size:14px;font-weight:600;margin:14px 0 4px}.lead{margin:0;color:#4a4c52}.muted{color:#6e7079}.small{font-size:13px}.note{min-height:1.5em;margin:4px 0 8px;font-size:14px;color:#4a4c52}.hint{margin:4px 0 0;font-size:12.5px;color:#6e7079}.title-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px 24px}.project-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.project-bar input{width:13rem;padding:7px 10px;font:inherit;font-size:14px;background:#fffc;border:1px solid rgba(20,32,60,.14);border-radius:10px}.layout{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:20px;align-items:start}.panel{padding:18px 20px;margin:0 0 16px;background:var(--ws-glass-strong);border:1px solid var(--ws-glass-edge);border-radius:14px;box-shadow:var(--ws-glass-shadow)}.results{position:sticky;top:76px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px 14px}.field.wide{grid-column:span 2}.field label{display:block;margin:0 0 4px;font-size:13px;font-weight:500;color:#4a4c52}.field input,.field select,table.loads input{display:block;width:100%;padding:7px 10px;font:inherit;font-size:14px;color:#0b0b0b;background:#ffffffe6;border:1px solid rgba(20,32,60,.16);border-radius:9px}.field input:focus,.field select:focus,table.loads input:focus{outline:3px solid rgba(var(--ws-blue-rgb),.25);outline-offset:0;border-color:var(--ws-blue)}input[aria-invalid=true]{border-color:var(--ws-red)}.segmented{display:inline-flex;margin:0 0 14px;padding:3px;background:#14203c0f;border-radius:10px}.segmented label{padding:5px 16px;font-size:14px;border-radius:8px;cursor:pointer}.segmented input{position:absolute;opacity:0;pointer-events:none}.segmented label:has(input:checked){background:#fff;box-shadow:0 1px 3px #14203c26;font-weight:500}.segmented label:has(input:focus-visible){outline:3px solid rgba(var(--ws-blue-rgb),.3)}table.loads{width:100%;margin:10px 0 14px;border-collapse:collapse}table.loads th{padding:0 4px 4px;font-size:12.5px;font-weight:500;color:#4a4c52;text-align:left}table.loads td{padding:3px 4px}table.loads td:first-child{font-size:14px;white-space:nowrap;padding-right:10px}table.loads input{padding:5px 8px;text-align:right;font-variant-numeric:tabular-nums}.drawings{display:grid;grid-template-columns:1fr 1fr;gap:8px;align-items:center}.status{margin:12px 0 8px;font-size:16px}.status.good strong{color:var(--ws-green)}.status.bad strong,.status.bad{color:var(--ws-red)}.warning{margin:0 0 8px;padding:8px 12px;font-size:13.5px;background:#fff4d6cc;border:1px solid rgba(226,186,92,.55);border-radius:10px}.upsell{margin:12px 0;padding:12px 14px;background:var(--ws-blue-subtle);border:1px solid var(--ws-blue-border);border-radius:12px}.upsell p{margin:0 0 10px}table.checks,table.combo-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}table.checks th,table.combo-table th{padding:6px;font-size:12.5px;font-weight:500;color:#6e7079;text-align:left;border-bottom:1px solid var(--ws-glass-line)}table.checks td,table.combo-table td{padding:7px 6px;border-bottom:1px solid var(--ws-glass-line);vertical-align:middle}table.checks td:first-child{font-weight:500}table.checks .ref{display:block;font-size:12px;font-weight:400;color:#6e7079}table.checks td.combo{font-size:13px;color:#4a4c52}.num{text-align:right;white-space:nowrap}table.combo-table{font-size:13px}table.combo-table tr.governs td{font-weight:600;background:rgba(var(--ws-blue-rgb),.06)}.use-bar{display:inline-block;vertical-align:middle;width:clamp(2.5rem,10vw,6rem);height:8px;margin-right:8px;border-radius:4px;background:#14203c14;overflow:hidden}.use-bar>span{display:block;height:100%;border-radius:4px;background:var(--ws-green)}.use-bar.over>span{background:var(--ws-red)}details{margin:14px 0 0}details summary{cursor:pointer;font-weight:600;font-size:14px}.calc-line{display:flex;justify-content:space-between;gap:12px;padding:2px 0;font-size:13.5px;font-variant-numeric:tabular-nums}.calc-line .ref{flex:none;font-size:12px;color:#6e7079}.next{margin:16px 0 0;font-size:14px}.tip{margin:0 0 16px;padding:10px 14px;font-size:14px;background:var(--ws-blue-subtle);border:1px solid var(--ws-blue-border);border-radius:12px}.check{display:flex;align-items:center;gap:8px;margin:14px 0 0;font-size:14px;cursor:pointer}.check input{width:16px;height:16px;margin:0;accent-color:var(--ws-blue)}.check.sub{margin-top:6px;padding-left:24px}.check:has(input:disabled){color:#9a9ca3;cursor:default}.drawings figure{margin:0}.drawings figcaption{font-size:12.5px;color:#6e7079;text-align:center}.design-drawing{display:block;width:100%;height:auto}.design-drawing text{font:12px system-ui,-apple-system,Segoe UI,Roboto,sans-serif;fill:#212529}.design-drawing .muted{fill:#6c757d}.design-drawing .good-text{fill:var(--ws-green)}.design-drawing .fail-text{fill:var(--ws-red)}.design-drawing .concrete{fill:#dfe4ea;stroke:#34495e;stroke-width:1.2}.design-drawing .member,.design-drawing .steel{fill:#b9c4d0;stroke:#34495e;stroke-width:1.2}.design-drawing .soil{fill:#efe4cf}.design-drawing .ground{stroke:#a88b5e;stroke-width:1}.design-drawing .rebar{fill:#9c3f2f;stroke:#9c3f2f}.design-drawing .rebar-plan{stroke:#c48a7e}.design-drawing .zone{fill:#d5ecdf;stroke:var(--ws-green);stroke-width:1}.design-drawing .zone-fail{fill:#f6d8d5;stroke:var(--ws-red);stroke-width:1}.design-drawing .cut{fill:none;stroke:var(--ws-green);stroke-width:1.6;stroke-dasharray:6 4}.design-drawing .cut-fail{fill:none;stroke:var(--ws-red);stroke-width:1.6;stroke-dasharray:6 4}.design-drawing .guide{fill:none;stroke:#6c757d;stroke-width:1;stroke-dasharray:4 3}.design-drawing .arrow{stroke:var(--ws-blue);stroke-width:2}.design-drawing .arrowhead{fill:var(--ws-blue)}.design-drawing .arrow-fail{stroke:var(--ws-red);stroke-width:2}.design-drawing .arrowhead-fail{fill:var(--ws-red)}.design-drawing .dim line{stroke:#34495e;stroke-width:1}.drawing-note{margin:4px 0 0;font-size:12.5px;color:#6e7079}.check-mark{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;margin-right:8px;font-size:12px;font-weight:700;color:#fff;border-radius:50%;background:var(--ws-green);vertical-align:-4px}.bad .check-mark,.check-mark.bad{background:var(--ws-red)}table.checks td.criterion{font-size:13px;color:#4a4c52}table.checks a{color:inherit;text-decoration:none}table.checks a:hover{color:var(--ws-blue);text-decoration:underline}.section-title{margin:24px 0 12px;font-size:20px}.calc-panel header{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 16px;margin:0 0 10px}.calc-panel h3{margin:0;font-size:16px}.calc-panel>h3{margin-bottom:10px}.calc-panel .criterion{font-size:13.5px;font-style:italic;color:#4a4c52}.calc-panel.failed{border-color:var(--ws-red-border);box-shadow:inset 3px 0 0 var(--ws-red),var(--ws-glass-shadow)}.calc-panel.failed h3{color:var(--ws-red)}.calc-text{font-size:13.5px;line-height:1.7;font-variant-numeric:tabular-nums}.calc-text>div{padding:1px 0}.calc-text .ref{float:right;margin-left:12px;font-size:12px;color:#6e7079}.calc-text h4{margin:12px 0 2px;font-size:14px;font-weight:600}.calc-text h4:first-child{margin-top:0}.calc-text table{border-collapse:collapse}.calc-text td,.calc-text th{padding:2px 10px 2px 0;text-align:left}.guide{margin-top:32px;max-width:900px;font-size:15px;line-height:1.65}.guide h2{font-size:22px;margin:0 0 12px}.guide h3{font-size:17px;margin:24px 0 8px}.guide h4{font-size:15px;margin:16px 0 4px}.guide p,.guide ul,.guide ol{margin:0 0 12px}.pl-button{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:8px 14px;font:inherit;font-weight:500;color:#fff;cursor:pointer;list-style:none;border:1px solid rgba(var(--ws-blue-rgb),.9);border-radius:10px;background:linear-gradient(180deg,#4a8cc6,var(--ws-blue));box-shadow:0 1px #ffffff59 inset,0 4px 14px rgba(var(--ws-blue-rgb),.25)}.pl-button::-webkit-details-marker{display:none}.pl-button:hover{background:linear-gradient(180deg,#3d80bb,var(--ws-blue-hover))}.pl-button .pl-icon{width:16px;height:16px}.pl-panel{padding:14px;background:var(--ws-glass-strong);border:1px solid var(--ws-glass-edge);border-radius:12px;box-shadow:var(--ws-glass-shadow)}.pl-panel-title{margin:0 0 4px;font-size:16px}.pl-panel-text{margin:0 0 12px;font-size:14px;color:#4a4c52}.pl-new{position:relative;margin:0 0 12px}.pl-menu{position:absolute;z-index:5;left:0;right:0;margin-top:4px;padding:4px;background:#fff;border:1px solid rgba(20,32,60,.12);border-radius:10px;box-shadow:0 8px 24px #1c2c5424}.pl-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;font:inherit;font-size:14px;text-align:left;background:none;border:none;border-radius:7px;cursor:pointer}.pl-menu button:hover,.pl-menu button:focus-visible{background:#eef4ff}.pl-name-form{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}.pl-name-form input{flex:1 1 100%;padding:7px 10px;font:inherit;font-size:14px;border:1px solid rgba(20,32,60,.16);border-radius:9px}.pl-name-form .button{padding:5px 12px}.pl-folders{display:flex;flex-direction:column;gap:8px}.pl-folder{margin:0;overflow:hidden;background:#fff;border:1px solid rgba(20,32,60,.1);border-radius:12px;box-shadow:0 2px 8px #1c2c540d}.pl-folder summary{display:flex;align-items:center;gap:10px;padding:9px 10px 9px 12px;cursor:pointer;list-style:none;-webkit-user-select:none;user-select:none}.pl-folder summary::-webkit-details-marker{display:none}.pl-folder summary:before{content:"";flex:none;width:6px;height:6px;border-right:2px solid #6e7079;border-bottom:2px solid #6e7079;transform:rotate(-45deg);transition:transform .15s}.pl-folder[open] summary:before{transform:rotate(45deg)}.pl-folder summary:hover .pl-folder-name{color:var(--ws-blue)}.pl-folder-name{flex:1;min-width:0;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pl-folder-actions{display:flex;gap:2px;opacity:0;transition:opacity .15s}.pl-folder summary:hover .pl-folder-actions,.pl-folder summary:focus-within .pl-folder-actions{opacity:1}@media (hover: none){.pl-folder-actions{opacity:1}}.pl-icon-button{display:inline-flex;padding:5px;border:none;border-radius:7px;background:none;color:#6e7079;cursor:pointer}.pl-icon-button .pl-icon{width:15px;height:15px}.pl-icon-button:hover,.pl-icon-button:focus-visible{background:#eef2f8;color:#0b0b0b}.pl-icon-button.pl-delete:hover{color:var(--ws-red)}.pl-project-list{min-height:8px;border-top:1px solid rgba(20,32,60,.08);background:#fbfcfe}.pl-project-list:empty{min-height:40px}.pl-project-list:empty:after{content:attr(data-empty);display:block;padding:10px 12px 10px 36px;font-size:13px;color:#6e7079}.pl-project{display:flex;align-items:flex-start;gap:10px;padding:9px 12px 9px 28px;cursor:pointer}.pl-project+.pl-project{border-top:1px solid rgba(20,32,60,.06)}.pl-project:hover,.pl-project:focus-visible{background:#eef4ff;outline:none}.pl-project-active,.pl-project-active:hover{background:var(--ws-blue-subtle);box-shadow:inset 3px 0 0 var(--ws-blue);cursor:default}.pl-project-ghost{opacity:.4}.pl-project-text{display:flex;flex-direction:column;min-width:0}.pl-project .project-title{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pl-project-active .project-title{color:var(--ws-blue)}.pl-project .project-meta{font-size:12px;color:#6e7079}.pl-icon{flex:none;width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.pl-icon-folder{color:#d39e2a;fill:#f6e3b4e6}.pl-icon-file{color:#6e7079;margin-top:1px}.pl-project-active .pl-icon-file{color:var(--ws-blue)}.pl-dialog{max-width:360px;padding:20px;border:none;border-radius:14px;box-shadow:0 16px 48px #1c2c5440}.pl-dialog::backdrop{background:#14203c4d}.pl-dialog-text{margin:0 0 16px}.pl-dialog-buttons{display:flex;justify-content:flex-end;gap:8px}@media (max-width: 1100px){.app{grid-template-columns:minmax(0,1fr)}.sidebar{position:static;max-height:none;order:2}}@media (max-width: 900px){.layout{grid-template-columns:minmax(0,1fr)}.results{position:static}}@media (max-width: 700px){.calc-text .ref{float:none;display:block;margin:0}}@media (max-width: 480px){.grid{grid-template-columns:1fr 1fr}.field.wide{grid-column:1 / -1}.drawings{grid-template-columns:1fr 1fr}.project-bar input{width:100%}.calc-line{flex-direction:column;gap:0}}@media print{body:before,.top,.sidebar,.project-bar,.note,.signed-out-only,footer-component{display:none!important}body{background:#fff}.app{display:block;padding:0}.panel{box-shadow:none;break-inside:avoid;-webkit-backdrop-filter:none;backdrop-filter:none}.results{position:static}}.layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.table-scroll{position:relative;overflow-x:auto}table.rows{margin:8px 0 10px}table.rows td:first-child{font-variant-numeric:tabular-nums}table.rows select{width:100%;min-width:72px;padding:5px 6px;font:inherit;font-size:14px;background:#fff;border:1px solid var(--ws-glass-line);border-radius:8px}table.rows input{min-width:64px}table.rows tr.selected td{background:rgba(var(--ws-blue-rgb),.08)}table.rows tr.selected td:first-child{box-shadow:inset 3px 0 0 var(--ws-blue)}.remove{width:28px;height:28px;padding:0;font-size:18px;line-height:1;color:#6e7079;background:none;border:0;border-radius:6px;cursor:pointer}.remove:hover,.remove:focus-visible{color:var(--ws-red);background:#c9473f14}#example{padding-right:8px}.view-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 12px}.view-bar .segmented{margin:0;flex-wrap:wrap}.view-bar .segmented label{padding:5px 10px}.view-bar .check{margin:0}.drawing{margin:10px 0 0}.results .status{font-size:14px}.results table.checks{margin-top:4px;font-size:14px}.frame-drawing{display:block;width:100%;height:auto;font:12px system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.frame-drawing .member-line{stroke:#34495e;stroke-width:3;stroke-linecap:round}.frame-drawing .member-line.faint{stroke:#b9c4d0;stroke-width:2}.frame-drawing .member-line.selected{stroke:var(--ws-blue);stroke-width:5}.frame-drawing .joint{fill:#fff;stroke:#34495e;stroke-width:2}.frame-drawing .joint.selected{fill:var(--ws-blue);stroke:var(--ws-blue)}.frame-drawing .support{fill:#dfe4ea;stroke:#34495e;stroke-width:1.2}.frame-drawing .ground{stroke:#6c757d;stroke-width:1}.frame-drawing .arrow{stroke:#337ab7;stroke-width:1.6}.frame-drawing .arrowhead{fill:#337ab7}.frame-drawing .load-line{fill:none;stroke:#337ab7;stroke-width:1}.frame-drawing .load-label{fill:#23527c}.frame-drawing .note-label{fill:#4a4c52;font-size:13px}.frame-drawing .value-label{fill:#0b0b0b;font-weight:600;paint-order:stroke;stroke:#fff;stroke-width:3px}.frame-drawing .diagram{fill:#337ab72e;stroke:none}.frame-drawing .diagram-edge{fill:none;stroke:#337ab7;stroke-width:1.6}.frame-drawing .axial-tension{stroke:#337ab7;stroke-linecap:round}.frame-drawing .axial-compression{stroke:#c9473f;stroke-linecap:round}.frame-drawing .axial-zero{stroke:#b9c4d0;stroke-width:2}.frame-drawing .deflected{fill:none;stroke:#c9473f;stroke-width:2.4;stroke-linejoin:round}.frame-drawing .member-number rect{fill:#fff;stroke:#9aa5b1}.frame-drawing .joint-number circle{fill:#34495e}.frame-drawing .member-number .number{fill:#34495e;font-size:11px;font-weight:600}.frame-drawing .joint-number .number{fill:#fff;font-size:11px;font-weight:600}.frame-drawing .hit{stroke:transparent;stroke-width:14;fill:transparent;cursor:pointer}.member-results{margin-top:20px}@media (max-width: 1100px){.layout{grid-template-columns:minmax(0,1fr)}.results{position:static;order:-1}}