/* Beam workspace: scoped to preserve the portfolio and other calculators. */
.beam-page{background:#071b31;color:#e5edf4;color-scheme:dark;--beam-line:#29435a;--beam-muted:#b3c5d4;--beam-blue:#8cceec;--beam-green:#93dbc0}
.beam-page .site-header{position:relative;background:#071b31}.beam-page nav a[aria-current]{color:var(--gold)}
.beam-main{background:radial-gradient(ellipse at 70% 0%,#153653 0%,#091f34 40%,#071b31 80%);padding:32px 0 65px;min-height:100vh}.beam-wrap{width:min(1460px,calc(100% - 64px));margin:auto}.beam-back{color:var(--beam-muted);font-size:13px}.beam-back:hover{color:var(--gold)}.beam-heading{display:flex;align-items:center;justify-content:space-between;gap:30px;margin:30px 0}.beam-heading .eyebrow{font-size:10px;letter-spacing:.17em;margin-bottom:15px}.beam-heading h1{font-size:clamp(28px,3.2vw,46px);letter-spacing:-.05em;margin:0 0 12px;line-height:1.15}.beam-heading h1 span{color:var(--gold)}.beam-heading p:not(.eyebrow){color:var(--beam-muted);font-size:15px;line-height:1.6;margin:0;max-width:720px}.beam-version{font-size:10px;letter-spacing:.12em;color:#a6becf;white-space:nowrap}.beam-version b{display:inline-block;background:#203c51;border:1px solid #3a566b;color:var(--beam-green);padding:7px 9px;margin-left:8px;letter-spacing:0}
.beam-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:22px;align-items:start}.beam-panel{background:#0d263d;border:1px solid var(--beam-line);border-radius:8px;min-width:0;overflow:hidden}.beam-editor{padding:23px 21px}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.panel-heading h2{font-size:16px;letter-spacing:-.02em;line-height:1.4;margin:0}.beam-page button,.beam-page input,.beam-page select{font-family:inherit}.beam-page button{cursor:pointer}.beam-page button:disabled{opacity:.4;cursor:not-allowed}.beam-page button:focus-visible,.beam-page input:focus-visible,.beam-page select:focus-visible,.beam-page summary:focus-visible{outline:2px solid var(--gold);outline-offset:3px}.quiet-button{background:transparent;border:0;color:var(--beam-blue);padding:7px 2px;font-size:12px;font-weight:600}.quiet-button:hover{color:var(--gold)}.field{position:relative;display:flex;flex-direction:column;font-size:12px;font-weight:500;color:#d0dee8;gap:8px;min-width:0}.field>span{color:#94acbf;font-size:10px;position:absolute;right:0;top:1px}.field input,.field select,.side-label select{width:100%;min-width:0;background:#091e31;border:1px solid #38546a;border-radius:4px;color:#eff5f9;min-height:40px;padding:9px;font-size:14px}.field select{font-size:12px}.field.full{margin-bottom:24px}.beam-page fieldset{border:0;border-top:1px solid var(--beam-line);padding:21px 0 0;margin:25px 0 0;min-width:0}.beam-page legend{font-size:11px;color:var(--gold);font-weight:600;padding:0 10px 0 0;letter-spacing:.03em}.beam-page legend span{font-size:13px;color:#e3ebf1;letter-spacing:0;margin-left:8px}.property-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 12px}.property-grid>.field:first-child{grid-column:1/-1}.ei-value{background:#132f46;border-radius:4px;padding:8px 10px;display:flex;flex-direction:column;gap:3px;justify-content:center}.ei-value span,.ei-value small{font-size:10px;color:var(--beam-muted)}.ei-value strong{font-size:16px;font-variant-numeric:tabular-nums}.editor-note{font-size:11px;line-height:1.65;color:var(--beam-muted);margin:0 0 14px}.model-item{padding:13px 11px;background:#102c43;border:1px solid #2b485e;border-radius:5px;margin-bottom:10px}.item-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:11px}.item-heading strong{font-size:12px;font-weight:600}.item-heading strong span{color:var(--gold);margin-right:6px}.remove-item{border:0;background:transparent;color:#a3bbcc;font-size:18px;line-height:1;min-width:28px;min-height:28px}.remove-item:hover{color:#ffb6a7}.item-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px 10px}.item-fields .field{font-size:10px}.item-fields .field>span{font-size:9px}.item-fields input,.item-fields select{font-size:12px;min-height:36px}.item-fields .wide{grid-column:1/-1}.add-button{background:transparent;border:1px dashed #486276;color:#b6d6e9;font-size:11px;font-weight:500;min-height:38px;padding:9px;border-radius:4px;width:100%}.add-button:hover{border-color:var(--gold);color:var(--gold)}.load-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.model-actions{display:flex;justify-content:space-between;margin-top:24px;padding-top:13px;border-top:1px solid var(--beam-line)}#model-message:empty{display:none}
.beam-workspace{display:flex;flex-direction:column;gap:18px}#analysis-results{display:flex;flex-direction:column;gap:18px}.model-view{padding:23px 25px 16px;background:linear-gradient(135deg,#112e46,#0b2238)}.analysis-state{font-size:11px;color:var(--beam-green);display:flex;align-items:center;gap:7px}.analysis-state:before{content:"";height:6px;width:6px;border-radius:50%;background:currentColor}.analysis-state.invalid{color:#ffc3a6}.canvas-toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:10px;color:var(--beam-muted)}.canvas-toolbar>span{display:flex;align-items:center;gap:7px}.legend-dot{display:inline-block;width:5px;height:5px;border-radius:50%;margin-left:10px}.legend-dot:first-child{margin-left:0}.gold{background:var(--gold)}.blue{background:var(--beam-blue)}.check-label{display:flex;align-items:center;gap:7px;cursor:pointer;white-space:nowrap}.beam-page input[type=checkbox]{accent-color:var(--gold)}#beam-canvas{width:100%;height:auto;display:block;overflow:visible;margin:5px 0}#beam-canvas text,.beam-chart text{font-family:'DM Sans',Arial,sans-serif;font-size:12px;fill:#b1c7d7}.canvas-footer{display:flex;justify-content:space-between;gap:16px;font-size:10px;color:#a0b8ca;line-height:1.5;border-top:1px solid #29445b;padding-top:13px}.draggable{cursor:ew-resize;touch-action:none}.draggable:hover .drag-halo{fill:#f3bc4c;fill-opacity:.08}.drag-halo{fill:transparent}.beam-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.beam-metrics>div{border:1px solid var(--beam-line);border-radius:7px;background:#0d263d;padding:20px}.beam-metrics span{display:block;font-size:11px;color:var(--beam-muted);margin-bottom:10px}.beam-metrics strong{font-size:clamp(19px,2.2vw,29px);font-weight:600;letter-spacing:-.025em;font-variant-numeric:tabular-nums;display:block;color:#eaf3f9}.beam-metrics strong small{font-size:12px;font-weight:400;color:var(--beam-muted);margin-left:5px}.beam-metrics small{display:block;font-size:10px;color:#a0b8ca;margin-top:8px}.diagrams{padding:23px 25px 18px}.diagram-legend{display:flex;flex-wrap:wrap;gap:7px 18px;color:var(--beam-muted);font-size:10px;padding-bottom:18px;border-bottom:1px solid var(--beam-line)}.chart-block{padding-top:20px}.chart-heading{display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:12px}.chart-heading strong{font-weight:500}.chart-heading span{font-size:10px;color:#a9c0d0}.chart-heading i{display:inline-block;width:7px;height:7px;border-radius:2px;margin-right:8px;background:var(--chart-color)}.beam-chart{width:100%;height:auto;display:block;margin-top:6px;touch-action:pan-y}.beam-chart text{font-size:11px}.chart-hover{pointer-events:none}.section-inspector{border-top:1px solid var(--beam-line);padding-top:20px;display:flex;align-items:center;gap:25px;margin-top:10px}.section-inspector>div{flex:1;min-width:0}.section-inspector label{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:#d3e0ea}.section-inspector label span{color:var(--gold);font-variant-numeric:tabular-nums}.beam-page input[type=range]{width:100%;accent-color:var(--gold);cursor:pointer;margin:14px 0 0}.section-inspector .side-label{font-size:10px;color:var(--beam-muted);display:flex;flex-direction:column;gap:6px}.side-label select{font-size:11px;min-height:32px;padding:5px}.section-values{display:flex;gap:25px;flex-wrap:wrap;margin:17px 0 0;font-size:12px;color:var(--beam-muted)}.section-values strong{color:#edf5fa;font-size:13px;margin-left:8px;font-weight:500;font-variant-numeric:tabular-nums}.reactions{padding:23px 25px}.subtle{font-size:10px;color:var(--beam-muted);line-height:1.5}.table-scroll{overflow-x:auto}.reactions table{width:100%;border-collapse:collapse;font-size:12px;white-space:nowrap;text-align:left}.reactions th{font-weight:400;color:#abc1d0;font-size:10px;padding:0 12px 14px;border-bottom:1px solid var(--beam-line)}.reactions td{padding:15px 12px;border-bottom:1px solid #203c52;font-variant-numeric:tabular-nums}.reactions tr:last-child td{border-bottom:0}.reactions td:first-child{color:var(--beam-blue);font-weight:600}.reactions td small{font-weight:400;color:var(--beam-muted);margin-left:7px}.reactions th:first-child,.reactions td:first-child{padding-left:0}.solution{padding:21px 25px}.solution summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:15px;font-size:14px;font-weight:600;min-height:25px}.solution summary::marker{color:var(--gold)}#solution-content{padding-top:22px;color:#b8cddd;font-size:12px;line-height:1.8}#solution-content h3{font-size:13px;color:#e5eff6;letter-spacing:0;margin:20px 0 8px}#solution-content h3:first-child{margin-top:0}#solution-content p{margin-bottom:12px}.equation{font-family:ui-monospace,Consolas,monospace;background:#091f32;padding:12px 14px;border-left:2px solid var(--gold);color:#d7e7f2;overflow-wrap:anywhere;margin:8px 0}.segment-select-label{display:flex;align-items:center;gap:10px;margin:15px 0}.segment-select-label select{background:#0a2034;border:1px solid #38546a;color:white;border-radius:4px;padding:8px;max-width:100%}.beam-method{font-size:11px;color:#9eb6c8;line-height:1.9;padding:0 4px}.beam-method strong{color:#ccdae4}.beam-error{background:#3b2b24;border:1px solid #a56e4c;border-radius:6px;padding:17px;color:#ffd4bc;font-size:13px;line-height:1.6}.dragging #beam-canvas{touch-action:none}
@media(min-width:1500px){.beam-layout{grid-template-columns:340px minmax(0,1fr)}}
@media(max-width:1080px){.beam-wrap{width:calc(100% - 40px)}.beam-layout{grid-template-columns:285px minmax(0,1fr);gap:16px}.beam-editor{padding:19px 16px}.beam-version{display:none}.beam-metrics{gap:8px}.beam-metrics>div{padding:15px 12px}.model-view,.diagrams,.reactions,.solution{padding-left:19px;padding-right:19px}.canvas-footer{flex-direction:column;gap:5px}.beam-metrics strong{font-size:22px}}
@media(max-width:800px){.beam-layout{grid-template-columns:1fr}.beam-heading{margin:25px 0}.beam-editor{padding:23px}.property-grid{grid-template-columns:repeat(4,1fr);align-items:end}.property-grid>.field:first-child{grid-column:auto}.beam-page fieldset{margin-top:22px}#support-list,#load-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.model-item{margin-bottom:0}.beam-editor .add-button{margin-top:10px}.beam-editor .load-actions{margin-top:0}.beam-metrics strong{font-size:27px}.beam-workspace{gap:15px}.beam-main{padding-top:23px}.beam-heading h1{font-size:34px}}
@media(max-width:520px){.beam-wrap{width:calc(100% - 28px)}.beam-heading h1{font-size:29px;max-width:330px}.beam-heading p:not(.eyebrow){font-size:13px}.beam-heading .eyebrow{font-size:9px}.beam-back{font-size:12px}.beam-editor{padding:19px}.property-grid{grid-template-columns:1fr 1fr}#support-list,#load-list{grid-template-columns:1fr}.model-view,.diagrams,.reactions,.solution{padding:18px 13px}.beam-metrics{gap:6px}.beam-metrics>div{padding:13px 8px}.beam-metrics span{font-size:9px}.beam-metrics strong{font-size:19px}.beam-metrics strong small{font-size:10px}.beam-metrics small{font-size:9px}.canvas-toolbar{font-size:9px;gap:6px}.canvas-toolbar>span{gap:5px}.legend-dot{margin-left:4px}.canvas-footer{font-size:9px}.diagram-legend{font-size:9px;gap:6px 10px}.section-inspector{gap:12px}.section-values{gap:12px;font-size:11px}.section-values strong{font-size:11px;margin-left:4px}.solution summary{font-size:12px}.solution summary .subtle{max-width:110px;text-align:right}.reactions .panel-heading{align-items:flex-start}.beam-page .footer-inner{font-size:11px}.beam-page .field input{font-size:16px}.beam-page .field select{font-size:14px}.beam-page .side-label select{font-size:12px}}
@media print{.beam-page{color-scheme:light}.beam-page .site-header,.beam-editor,.beam-back,.beam-method,.beam-page .footer,.quiet-button,.canvas-footer,.beam-version{display:none}.beam-layout{display:block}.beam-main{padding:0}.beam-wrap{width:100%}.beam-panel,.beam-metrics>div{break-inside:avoid}body{-webkit-print-color-adjust:exact;print-color-adjust:exact}}
.ei-value{grid-column:1/-1}.beam-metrics strong small{display:inline}
@media(min-width:521px) and (max-width:800px){.ei-value{grid-column:auto}}
.beam-page .wordmark{white-space:nowrap;flex-shrink:0}.beam-page .site-header nav{min-width:0}
@media(max-width:520px){.property-grid>.field:first-child{grid-column:1/-1}.beam-chart text{font-size:22px}#beam-canvas text{font-size:22px!important}}
.section-inspector{flex-wrap:wrap;gap:18px}.section-inspector>div{flex:1 1 180px}.section-inspector .side-label input{background:#091e31;border:1px solid #38546a;border-radius:4px;color:#eff5f9;min-height:32px;padding:5px 8px;font-size:12px;width:100px}.section-inspector .side-label input[aria-invalid=true]{border-color:#f3bc4c}#section-position-error{color:#ffd4bc;margin-top:12px}
@media(max-width:520px){.section-inspector>div{flex-basis:100%}.section-inspector .side-label{flex:1}.section-inspector .side-label input{width:100%;font-size:16px}}