@layer theme{:root,:host{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab,currentcolor 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components;@layer utilities{.visible{visibility:visible}}:root{--calc-ink:#152632;--calc-slate:#314752;--calc-paper:#e9eeeb;--calc-panel:#f7faf7;--calc-line:#b6c4c2;--calc-muted:#647477;--calc-orange:#e36f35;--calc-yellow:#f0c765;--calc-blue:#477c8b}*{box-sizing:border-box}html{background:var(--calc-paper)}body{color:var(--calc-ink);background:var(--calc-paper);margin:0;font-family:Avenir Next,Helvetica Neue,sans-serif}button,input,a{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--calc-orange);outline-offset:3px}::selection{background:var(--calc-yellow);color:var(--calc-ink)}.calc-page{background:linear-gradient(115deg,#e9eeeb,#dfe8e5);min-height:100vh;padding:22px 20px 31px}.calc-shell{width:min(1230px,100%);margin:auto}.calc-header,.calc-brand,.calc-header-meta,.calc-section-label,.result-head,.formula-line,.readout-strip,.calc-footer{align-items:center;display:flex}.calc-header{border-bottom:1px solid var(--calc-line);min-height:49px;color:var(--calc-muted);letter-spacing:.1em;text-transform:uppercase;justify-content:space-between;gap:20px;font:10px Courier New,monospace}.calc-brand{color:var(--calc-ink);gap:10px;font-weight:700}.calc-mark{border:1px solid var(--calc-orange);width:31px;height:31px;color:var(--calc-orange);letter-spacing:0;place-items:center;font-size:10px;display:grid}.calc-header-meta{gap:22px}.calc-online{color:#2e6854}.calc-online i{background:#42a779;border-radius:50%;width:7px;height:7px;margin-right:5px;display:inline-block}.calc-serial{color:var(--calc-orange)}.calc-hero{border-bottom:2px solid var(--calc-ink);grid-template-columns:minmax(0,1fr) 230px;align-items:end;gap:50px;padding:91px 0 73px;display:grid}.calc-hero h1{letter-spacing:-.1em;margin:0;font:400 clamp(4.1rem,8vw,8rem)/.8 Georgia,serif}.calc-hero h1 em{color:var(--calc-orange);font-style:italic}.calc-hero p{max-width:570px;color:var(--calc-muted);margin:29px 0 0;font-size:16px;line-height:1.6}.calc-warning{border-top:2px solid var(--calc-orange);border-bottom:1px solid var(--calc-orange);color:var(--calc-orange);gap:11px;padding:16px 0;display:grid}.calc-warning span,.calc-warning small{letter-spacing:.1em;text-transform:uppercase;font:10px Courier New,monospace}.calc-warning strong{color:var(--calc-ink);letter-spacing:-.06em;font:700 28px/.9 Arial,sans-serif}.calc-warning small{color:var(--calc-muted);text-transform:none;line-height:1.4}.instrument-grid{grid-template-columns:minmax(220px,.8fr) minmax(390px,1.35fr) minmax(200px,.75fr);gap:22px;padding:42px 0 68px;display:grid}.input-panel,.readout-panel,.audit-panel{min-width:0}.calc-section-label{border-bottom:2px solid var(--calc-ink);color:var(--calc-orange);letter-spacing:.1em;justify-content:space-between;gap:12px;padding-bottom:12px;font:10px Courier New,monospace}.calc-section-label span:last-child{color:var(--calc-muted)}.case-list{border-top:1px solid var(--calc-line)}.case-row{border:0;border-bottom:1px solid var(--calc-line);width:100%;min-height:76px;color:var(--calc-ink);text-align:left;background:0 0;grid-template-columns:30px minmax(0,1fr) 22px;align-items:center;gap:8px;padding:10px 6px;display:grid}.case-row:hover,.case-row.is-active{background:#d4e0dc}.case-symbol{color:var(--calc-blue);font:italic 19px Georgia,serif}.case-row strong,.case-row small{display:block}.case-row strong{font-size:14px;font-weight:700}.case-row small{color:var(--calc-muted);margin-top:4px;font-size:11px;line-height:1.35}.case-row b{color:var(--calc-orange);font:9px Courier New,monospace}.input-fields{gap:14px;padding:24px 0 19px;display:grid}.input-fields label{color:var(--calc-ink);grid-template-columns:1fr 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span:last-child{color:#adc0bd}.beam-visual{border-bottom:1px solid #6e8586;height:108px;margin:19px 0 10px;position:relative}.beam-line{background:var(--calc-yellow);height:5px;position:absolute;bottom:37px;left:13%;right:13%}.beam-support{background:var(--calc-orange);clip-path:polygon(50% 0,100% 100%,0 100%);width:24px;height:22px;position:absolute;bottom:12px}.beam-support.left{left:13%}.beam-support.right{right:13%}.beam-load{background:var(--calc-orange);width:1px;height:32px;position:absolute;bottom:45px}.beam-load:after{content:"";background:var(--calc-orange);clip-path:polygon(50% 100%,0 0,100% 0);width:8px;height:7px;position:absolute;bottom:0;left:-4px}.load-one{left:32%}.load-two{left:50%}.load-three{left:68%}.result-head,.formula-line,.readout-strip{justify-content:space-between;gap:12px}.result-head{color:#b4c6c2;letter-spacing:.1em;font:10px Courier New,monospace}.result-head span:last-child{color:var(--calc-yellow)}.result-number{align-items:baseline;gap:13px;margin:15px 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(max-width:700px){.calc-page{padding-inline:15px}.calc-header-meta{display:none}.calc-serial{margin-left:auto}.calc-hero{padding:70px 0 58px;display:block}.calc-hero h1{font-size:clamp(4rem,18vw,6rem)}.calc-warning{width:210px;margin:48px 0 0 auto}.instrument-grid{padding-top:32px;display:block}.input-panel{margin-bottom:34px}.readout-panel{padding:20px 16px 23px}.audit-panel{margin-top:34px;display:block}.calc-footer{gap:8px;display:grid}}