@font-face{font-family:Barlow Semi Condensed;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/barlow-semi-condensed-latin-600-normal-BkLiAYu4.woff2)format("woff2"),url(/assets/barlow-semi-condensed-latin-600-normal-DyOfdMBA.woff)format("woff")}@font-face{font-family:Barlow Semi Condensed;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/barlow-semi-condensed-latin-700-normal-BpqDG8I9.woff2)format("woff2"),url(/assets/barlow-semi-condensed-latin-700-normal-BMyZXq_9.woff)format("woff")}@font-face{font-family:Barlow Semi Condensed;font-style:italic;font-display:swap;font-weight:700;src:url(/assets/barlow-semi-condensed-latin-700-italic-CTVo8ywK.woff2)format("woff2"),url(/assets/barlow-semi-condensed-latin-700-italic--gmxCW3y.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/ibm-plex-sans-latin-400-normal-CDDApCn2.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-400-normal-CYLoc0-x.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/ibm-plex-sans-latin-500-normal-6ng42L7E.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-500-normal-BgVn5rGT.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/ibm-plex-sans-latin-600-normal-CuJfVYMP.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-600-normal-Cu4Hd6ag.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/ibm-plex-mono-latin-400-normal-DMJ8VG8y.woff2)format("woff2"),url(/assets/ibm-plex-mono-latin-400-normal-CvHOgSBP.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/ibm-plex-mono-latin-500-normal-DSY6xOcd.woff2)format("woff2"),url(/assets/ibm-plex-mono-latin-500-normal-CB9ihrfo.woff)format("woff")}:root{--paper:#f2f4f5;--sheet:#fff;--ink:#18222a;--muted:#5b6974;--rule:#d6dde2;--grid:#e8edf0;--lid:#cfd8de;--steel:#0d6b88;--steel-soft:#0d6b8838;--hinge-soft:#5b697424;--closes:#b9640e;--closes-soft:#b9640e29;--holds:#2b7a4a;--opens:#5a4cc2;--weight:#8f3a1e;--danger:#a3261b;--f-display:"Barlow Semi Condensed", "Arial Narrow", system-ui, sans-serif;--f-body:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--f-mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#0f1519;--sheet:#161e24;--ink:#e3e9ed;--muted:#94a3ae;--rule:#2a363f;--grid:#1f2a31;--lid:#34434d;--steel:#4cb3d4;--steel-soft:#4cb3d44d;--hinge-soft:#94a3ae29;--closes:#e39a4c;--closes-soft:#e39a4c29;--holds:#5cc28a;--opens:#9b90f0;--weight:#e0805c;--danger:#f08378;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--paper:#0f1519;--sheet:#161e24;--ink:#e3e9ed;--muted:#94a3ae;--rule:#2a363f;--grid:#1f2a31;--lid:#34434d;--steel:#4cb3d4;--steel-soft:#4cb3d44d;--hinge-soft:#94a3ae29;--closes:#e39a4c;--closes-soft:#e39a4c29;--holds:#5cc28a;--opens:#9b90f0;--weight:#e0805c;--danger:#f08378;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0}body:before{content:"";height:env(safe-area-inset-top,0px);z-index:10;background:var(--sheet);position:fixed;inset:0 0 auto}body{background:var(--paper);color:var(--ink);font:15px/1.5 var(--f-body)}h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;font-weight:600}h1{font-size:clamp(28px,4.2vw,40px);line-height:1.08}h2{font-size:20px}h3{font-size:17px}p{margin:0}button,input,select{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--steel);outline-offset:2px}.eyebrow{font:500 12px/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.num,.spec dd,output{font-family:var(--f-mono);font-variant-numeric:tabular-nums}.topbar{top:env(safe-area-inset-top,0px);z-index:5;padding-block:10px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));background:var(--sheet);border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;gap:12px;display:flex;position:sticky}.brand{font:700 20px var(--f-display);letter-spacing:.02em;align-items:center;gap:4px;display:flex}.logo{width:46px;height:auto;color:var(--steel);flex:none}.wordmark{font:italic 700 22px var(--f-display);letter-spacing:0}.wordmark .tld{color:var(--steel)}.topbar select{border:1px solid var(--rule);background:var(--sheet);border-radius:4px;padding:4px 8px}.page{max-width:1320px;padding-block:22px 40px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));gap:18px;margin:0 auto;display:grid}.intro{gap:6px;display:grid}.intro p{color:var(--muted);max-width:64ch}.templates{border:0;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin:0;padding:0;display:grid}@media (width<=1100px){.templates{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=640px){.templates{grid-template-columns:repeat(2,minmax(0,1fr))}}.templates legend{margin-bottom:8px}.template{cursor:pointer;background:var(--sheet);border:1px solid var(--rule);border-radius:6px;align-items:center;gap:12px;min-width:0;padding:10px 12px;display:flex}.template input{opacity:0;pointer-events:none;position:absolute}.template:has(input:focus-visible){outline:2px solid var(--steel);outline-offset:2px}.template.selected{border-color:var(--steel);box-shadow:inset 0 0 0 1px var(--steel)}.template-text{min-width:0;display:grid}.template-text strong{font:600 17px var(--f-display)}.template-text small{color:var(--muted)}@media (width<=640px){.template{text-align:center;flex-direction:column;gap:4px;padding:8px 6px}.template svg{width:44px;height:33px}.template-text strong{font-size:15px;line-height:1.15}.template-text small{display:none}}.workspace{grid-template-columns:minmax(250px,290px) minmax(0,1fr) minmax(280px,340px);grid-template-areas:"inputs stage answer""inputs mounts answer";align-items:start;gap:14px;display:grid}.mounts-panel{grid-area:mounts}.inputs,.answer-column{align-self:start}.inputs{grid-area:inputs}.stage{grid-area:stage}.answer-column{grid-area:answer;gap:10px;min-width:0;display:grid}@media (width<=1180px){.workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-areas:"stage stage""inputs answer""mounts mounts"}}@media (width<=760px){.workspace{grid-template-columns:minmax(0,1fr);grid-template-areas:"stage""answer""inputs""mounts"}}.panel{background:var(--sheet);border:1px solid var(--rule);border-radius:6px;min-width:0;padding:16px}.inputs{gap:12px;display:grid}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.inputs .field-grid{grid-template-columns:minmax(0,1fr)}@media (width<=1180px) and (width>=761px){.inputs .field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.field{grid-template-columns:minmax(0,1fr);gap:4px;min-width:0;display:grid}.field label,.field .label{color:var(--muted);justify-content:space-between;gap:8px;font-size:13px;display:flex}.field output{color:var(--ink)}.input-unit{border:1px solid var(--rule);background:var(--sheet);border-radius:4px;align-items:stretch;display:flex}.input-unit:focus-within{border-color:var(--steel)}.input-unit input{min-width:0;font-family:var(--f-mono);font-variant-numeric:tabular-nums;background:0 0;border:0;outline:none;flex:1;padding:7px 9px}.unit{color:var(--muted);font:13px var(--f-mono);border-left:1px solid var(--rule);padding:7px 9px}.field.invalid .input-unit{border-color:var(--danger)}.hint{color:var(--muted);font-size:12px}.field.invalid .hint{color:var(--danger)}select{border:1px solid var(--rule);background:var(--sheet);border-radius:4px;padding:7px 9px}select:disabled{opacity:.55}input[type=range]{width:100%;accent-color:var(--steel)}.check{align-items:center;gap:8px;font-size:14px;display:flex}.check input{accent-color:var(--steel)}.segmented{border:1px solid var(--rule);border-radius:4px;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;overflow:hidden}.segmented label{text-align:center;cursor:pointer;color:var(--ink);justify-content:center;padding:7px;font-size:14px}.segmented label+label{border-left:1px solid var(--rule)}.segmented label.selected{background:var(--steel);color:var(--sheet)}.segmented label:has(input:focus-visible){outline:2px solid var(--steel);outline-offset:-3px}.segmented input{opacity:0;pointer-events:none;position:absolute}.stage{gap:10px;display:grid}.drawing{touch-action:none;width:100%;height:auto;max-height:54vh;display:block}.drawing-label{font-family:var(--f-mono);fill:var(--muted)}.drawing-label-weight{fill:var(--weight)}.handle{cursor:grab;outline:none}.handle.dragging{cursor:grabbing}.handle-dot{fill:var(--sheet);stroke:var(--steel)}.handle:hover .handle-dot,.handle:focus-visible .handle-dot,.handle.dragging .handle-dot{fill:var(--steel)}.placeholder{color:var(--muted);text-align:center;padding:40px 0}.playback{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.playback input[type=range]{flex:160px;width:auto}.playback-angle{font:600 20px var(--f-mono);text-align:right;min-width:4ch}.button{border:1px solid var(--rule);background:var(--sheet);cursor:pointer;font:500 13px var(--f-mono);border-radius:4px;padding:6px 12px}.button:hover{border-color:var(--steel);color:var(--steel)}.chip{font:500 13px var(--f-body);border:1px solid;border-radius:999px;align-items:center;gap:6px;padding:2px 10px;display:inline-flex}.chip i{border-radius:50%;width:8px;height:8px}.legend{color:var(--muted);flex-wrap:wrap;gap:4px 14px;font-size:13px;display:flex}.legend i{vertical-align:middle;border-radius:2px;width:14px;height:4px;margin-right:6px;display:inline-block}.legend i.wide{height:10px}.drag-hint{margin-left:auto}.answer{gap:14px;transition:opacity .15s;display:grid}.answer.stale{opacity:.6}.answer-main{gap:4px;display:grid}.answer-main .big{font:700 40px/1 var(--f-display);color:var(--steel)}.spec{gap:4px;margin:0;display:grid}.spec div{border-bottom:1px dashed var(--grid);justify-content:space-between;gap:12px;padding-bottom:3px;display:flex}.spec dt{color:var(--muted)}.spec dd{text-align:right;margin:0}.answer-block{border-top:1px solid var(--rule);gap:8px;padding-top:12px;display:grid}.headline.stays_open{color:var(--holds)}.headline.falls_closed{color:var(--closes)}.headline.opens_from{color:var(--opens)}.headline.holds_range{color:var(--holds)}.zones{gap:4px;margin:0;padding:0;list-style:none;display:grid}.zones li{grid-template-columns:10px minmax(64px,max-content) 1fr;align-items:center;gap:8px;font-size:14px;display:grid}.zones .num{white-space:nowrap}.zones i{border-radius:50%;width:10px;height:10px}.effort-row{grid-template-columns:64px 1fr;align-items:center;gap:4px 10px;font-size:14px;display:grid}.effort-value{color:var(--muted);grid-column:2;font-size:13px}.bar{background:var(--grid);border-radius:4px;height:8px;overflow:hidden}.bar span{background:var(--steel);border-radius:4px;height:100%;display:block}.effort-easy{color:var(--holds)}.effort-medium{color:var(--closes)}.effort-heavy{color:var(--danger)}.weight{color:var(--muted);font-size:13px}.advice{border-left:3px solid var(--closes);background:var(--closes-soft);border-radius:0 4px 4px 0;gap:6px;margin:0;padding:10px 12px 10px 28px;font-size:14px;display:grid}.error{color:var(--danger);border:1px solid var(--danger);background:var(--sheet);border-radius:6px;padding:10px 12px;font-size:14px}.details summary{cursor:pointer;flex-wrap:wrap;align-items:baseline;gap:4px 12px;list-style:none;display:flex}.details summary::-webkit-details-marker{display:none}.details summary:before{content:"+";font:600 18px var(--f-mono);color:var(--steel);width:14px}.details[open] summary:before{content:"−"}.details summary span{font:600 20px var(--f-display)}.details summary small{color:var(--muted)}.details-body{gap:18px;margin-top:14px;display:grid}.charts{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.charts figure{gap:6px;min-width:0;margin:0;display:grid}.charts figcaption{font:600 16px var(--f-display)}.chart{width:100%;height:auto;display:block}.axis text{font:11px var(--f-mono);fill:var(--muted)}.axis line{stroke:var(--grid)}.axis line.zero{stroke:var(--muted)}.note{color:var(--muted);font-size:13px}.details-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:20px;display:grid}.details-grid>div{align-content:start;gap:10px;display:grid}@media (width<=860px){.charts,.details-grid{grid-template-columns:minmax(0,1fr)}}.page-footer{color:var(--muted);text-align:center;padding-block:0 28px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px))}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.mounts{gap:10px;display:grid}.mounts-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.mount-row{grid-template-columns:34px minmax(0,1fr) minmax(0,240px);align-items:start;gap:12px;display:grid}@media (width<=640px){.mount-row{grid-template-columns:34px minmax(0,1fr)}.mount-fields{grid-column:2}}.mount-badge{border:2px solid var(--steel);width:30px;height:30px;color:var(--steel);font:600 15px var(--f-mono);border-radius:50%;place-items:center;display:grid}.mount-text{gap:2px;min-width:0;display:grid}.mount-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.standard{color:var(--muted);font-size:14px}.zone{fill:var(--steel-soft);fill-opacity:.18;stroke:var(--steel);stroke-opacity:.45}.mounts-actions{flex-wrap:wrap;gap:8px;display:flex}.button.primary{background:var(--steel);border-color:var(--steel);color:var(--sheet)}.button.primary:hover{color:var(--sheet);opacity:.9}.button:disabled{opacity:.6;cursor:progress}.tolerance{color:var(--muted);font-size:14px}.tolerance.sensitive{color:var(--closes)}.zones-editor summary{cursor:pointer;color:var(--steel);font-size:14px}.zones-editor{gap:8px;display:grid}.zones-editor[open]{gap:10px}.zone-row{gap:6px;display:grid}.zone-fields{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}@media (width<=640px){.zone-fields{grid-template-columns:repeat(2,minmax(0,1fr))}}.choice{border:1px solid var(--rule);border-radius:4px;display:grid;overflow:hidden}.choice label{cursor:pointer;color:var(--ink);padding:7px 10px;font-size:14px}.choice label+label{border-top:1px solid var(--rule)}.choice label.selected{background:var(--steel);color:var(--sheet)}.choice label:has(input:focus-visible){outline:2px solid var(--steel);outline-offset:-3px}.choice input{opacity:0;pointer-events:none;position:absolute}.marker-label{font:600 11px var(--f-mono);fill:var(--opens)}.legend i.zone-key{opacity:.35;height:10px}.legend .legend-label{color:var(--muted)}.legend i.dashed{border-top:2px dashed var(--steel);background:0 0;height:0}.proof{border-left:3px solid var(--opens);padding:4px 0 4px 10px;font-size:14px}.map-figure{gap:6px;margin:0;display:grid}.map-figure figcaption{font:600 16px var(--f-display)}.position-map{grid-template-columns:minmax(0,420px) minmax(0,1fr);align-items:start;gap:16px;display:grid}@media (width<=760px){.position-map{grid-template-columns:minmax(0,1fr)}}.position-map svg{width:100%;height:auto;max-height:360px;display:block}.map-legend{color:var(--muted);gap:8px;font-size:13px;display:grid}.map-legend .gradient{background:linear-gradient(90deg, color-mix(in srgb, var(--steel) 15%, transparent), var(--steel));border-radius:5px;height:10px}.grey-key i{background:var(--grid);vertical-align:middle;border:1px solid var(--rule);width:12px;height:12px;margin-right:6px;display:inline-block}.behaviour{border:0;gap:10px;margin:0;padding:0;display:grid}.behaviour legend{margin-bottom:8px}.behaviour-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}@media (width<=760px){.behaviour-options{grid-template-columns:minmax(0,1fr)}}.behaviour-option{cursor:pointer;background:var(--sheet);border:1px solid var(--rule);border-radius:6px;gap:2px;min-width:0;padding:10px 12px;display:grid}.behaviour-option strong{font:600 16px var(--f-display)}.behaviour-option small{color:var(--muted)}.behaviour-option.selected{border-color:var(--steel);box-shadow:inset 0 0 0 1px var(--steel)}.behaviour-option:has(input:focus-visible){outline:2px solid var(--steel);outline-offset:2px}.behaviour-option input{opacity:0;pointer-events:none;position:absolute}.self-open{max-width:520px}.mounting-drawing{gap:6px;margin:0;display:grid}.mounting-drawing figcaption{font:600 16px var(--f-display)}.mounting-drawing svg{width:100%;height:auto;max-height:340px;display:block}.dimension-text{font-family:var(--f-mono);fill:var(--ink)}.actions{border-top:1px solid var(--rule);flex-wrap:wrap;gap:8px;padding-top:12px;display:flex}.copy-fallback{width:100%;min-height:140px;font:12px var(--f-mono);border:1px solid var(--rule);background:var(--sheet);color:var(--ink);border-radius:4px;padding:8px}@media print{.topbar,.templates,.behaviour,.inputs,.stage,.details,.no-print,.mounts-actions,.zones-editor,.mount-fields,.page-footer,.playback,.error{display:none!important}body{color:#000;background:#fff}.page{max-width:none;padding:0}.workspace{flex-direction:column;display:flex}.answer-column{order:-1}.intro p{display:none}.panel{border:0;padding:0 0 12px}.answer.stale{opacity:1}.page-intro .tips,.lid-links,.release,.view-switch,.quote,.topnav{display:none!important}.page-intro p{display:none}.print-only{display:block!important}.report-head{border-bottom:2px solid #000;margin-bottom:12px;padding-bottom:6px}.report-head .report-title{font:700 22px var(--f-display);margin:0}.report-head p{margin:2px 0 0;font-size:11px}.report-foot{border-top:1px solid #000;margin-top:16px;padding-top:6px;font-size:10px}.page-intro h1{font-size:18px}.mounts-panel,.answer{break-inside:avoid}a{color:inherit;text-decoration:none}}.print-only{display:none}@media (width<=480px){.language-label{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}.quote{margin-top:16px}.quote h2{margin:0 0 4px}.quote-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px;margin-top:12px;display:grid}.quote-form label{gap:4px;font-size:14px;display:grid}.quote-form input:not([type=checkbox]),.quote-form textarea{font:inherit;border:1px solid var(--rule);background:var(--sheet);color:var(--ink);border-radius:4px;min-width:0;padding:8px 10px}.quote-form .wide{grid-column:1/-1}.quote-form .consent{align-items:flex-start;gap:8px;display:flex}.quote-form .consent input{margin-top:3px}.quote-form .honeypot{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.quote-form button{justify-self:start;padding:10px 18px}@media (width<=640px){.quote-form{grid-template-columns:minmax(0,1fr)}}.legal{max-width:72ch;margin:0 auto}.legal h1{margin:8px 0 12px}.legal h2{margin:20px 0 6px;font-size:18px}.legal p,.legal li{line-height:1.55}.legal p,.legal ul{margin:0 0 10px}.footer-links{flex-wrap:wrap;justify-content:center;gap:16px;margin-top:8px;font-size:13px;display:flex}.lift-arms{gap:10px;margin-top:4px;display:grid}.lift-arms summary{cursor:pointer;font-weight:500}.lift-arms[open] summary{margin-bottom:6px}.link-button{color:var(--steel);cursor:pointer;font:inherit;background:0 0;border:0;justify-self:start;padding:0;text-decoration:underline}.zones .lift-height{color:var(--muted);font-size:12px;display:block}.playback-angle small{color:var(--muted);font-weight:400}.release{flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:8px;display:flex}.release-result{flex:260px;margin:0;font-size:14px}.field.checkbox{align-items:center;gap:8px;display:flex}.view-switch{justify-self:end;max-width:260px;margin-bottom:6px}.view3d{touch-action:none;cursor:grab;width:100%}.view3d canvas{border-radius:6px;display:block}.topnav{gap:16px;margin-left:auto;margin-right:16px;font-size:14px;display:flex}.topnav a{color:var(--ink);text-decoration:none}.topnav a:hover{text-decoration:underline}@media (width<=560px){.topnav{gap:10px;margin-right:8px;font-size:13px}}.page-intro p{max-width:72ch}.page-intro .tips{max-width:72ch;color:var(--muted)}.page-intro .tips summary{cursor:pointer;color:var(--steel)}.page-intro .tips ul{gap:4px;margin:6px 0 0;padding-left:20px;display:grid}.brand{color:inherit;text-decoration:none}.topnav a{white-space:nowrap}@media (width<=560px){.nav-calculator{display:none}}.lid-links{margin-top:24px}.lid-links h2{margin:0 0 8px;font-size:18px}.lid-links ul{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:6px 16px;margin:0;padding:0;list-style:none;display:grid}.methodology .lead{font-size:17px}.methodology .eq-block{font:15px var(--f-mono);background:var(--paper,transparent);border-left:3px solid var(--steel);white-space:nowrap;padding:8px 12px;overflow-x:auto}.methodology .references{font-size:14px}@media (width<=480px){.topbar{gap:8px}.topbar select{max-width:112px}.wordmark{font-size:18px}.topnav{margin-right:0;font-size:12px}}
