@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Newsreader:ital,wght@0,400;0,600;1,400;1,600&family=Plus+Jakarta+Sans:wght@400;500;700&display=swap');
:root{--vl-paper:#FAF7F2;--vl-ink:#181615;--vl-vermilion:#D84315;--vl-stone:#EFECE4;--vl-slate:#4A5568;--vl-hairline:#DCD6C8;--vl-serif:'Newsreader',Georgia,serif;--vl-sans:'Plus Jakarta Sans',Arial,sans-serif;--vl-mono:'JetBrains Mono',monospace;--vl-gutter:clamp(22px,5vw,84px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--vl-paper);color:var(--vl-ink);font:15px/1.75 var(--vl-sans);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:var(--vl-vermilion)}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--vl-vermilion);outline-offset:5px}h1,h2,h3,h4,p,figure,blockquote,dl{margin:0}h1,h2,h3,h4{font-family:var(--vl-serif);font-weight:400;line-height:1.07;letter-spacing:-.035em}p+p{margin-top:18px}h1{font-size:clamp(48px,5.4vw,82px)}h2{font-size:clamp(36px,3.8vw,53px)}h3{font-size:30px}p{color:var(--vl-slate)}svg{max-width:100%}button{color:inherit}::selection{background:#f2c8b4;color:var(--vl-ink)}[hidden]{display:none!important}.vl-skip{position:fixed;top:-80px;left:20px;background:var(--vl-ink);color:var(--vl-paper);padding:12px 20px;z-index:10}.vl-skip:focus{top:10px}.vl-masthead{padding:27px var(--vl-gutter);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--vl-hairline);gap:28px}.vl-brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}.vl-brand svg{width:34px;height:38px;color:var(--vl-vermilion)}.vl-wordmark{font:600 23px/.95 var(--vl-serif);letter-spacing:-.6px}.vl-wordmark small{display:block;font:9px/1.6 var(--vl-mono);letter-spacing:3.6px;text-transform:uppercase;margin-top:7px}.vl-nav{display:flex;align-items:center;gap:25px}.vl-nav a{font-size:12px;text-decoration:none;font-weight:500}.vl-nav a[aria-current=page]{color:var(--vl-vermilion)}.vl-nav .vl-nav-contact{border-left:1px solid var(--vl-hairline);padding-left:24px}.vl-menu{display:none;background:none;border:1px solid var(--vl-hairline);padding:8px 12px;font-size:12px}.vl-stage{max-width:1680px;margin:auto}.vl-manuscript{padding:0 var(--vl-gutter)}.vl-kicker{font:10px/1.7 var(--vl-mono);letter-spacing:1.7px;text-transform:uppercase;color:var(--vl-vermilion);display:flex;align-items:center;gap:10px}.vl-kicker::before{content:'';width:6px;height:6px;background:currentColor;flex-shrink:0}.vl-hero{display:grid;grid-template-columns:.92fr 1.08fr;gap:6%;padding-top:65px;padding-bottom:69px;align-items:center}.vl-hero-copy h1{margin:26px 0 23px;max-width:570px}.vl-hero-copy h1 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var(--vl-mono);gap:12px}.vl-live{color:var(--vl-vermilion);font:9px var(--vl-mono);white-space:nowrap}.vl-selector{padding:16px 20px 19px;border-bottom:1px solid var(--vl-hairline)}.vl-label{display:block;font:9px/1.6 var(--vl-mono);text-transform:uppercase;letter-spacing:1px;margin-bottom:7px;color:var(--vl-slate)}.vl-select{display:block;width:100%;background:transparent;border:0;border-bottom:1px solid var(--vl-ink);border-radius:0;padding:7px 22px 8px 0;font:12px var(--vl-sans);color:var(--vl-ink)}.vl-flow{display:grid;grid-template-columns:133px 1fr;min-height:240px}.vl-step-list{padding:15px 0;background:var(--vl-stone);border-right:1px solid var(--vl-hairline);display:flex;flex-direction:column;justify-content:space-between}.vl-step{border:0;background:transparent;display:flex;gap:9px;align-items:center;padding:12px 12px;text-align:left;font:10px/1.5 var(--vl-sans);position:relative}.vl-step span{font:10px var(--vl-mono);color:var(--vl-slate)}.vl-step[aria-pressed=true]{color:var(--vl-vermilion);background:var(--vl-paper)}.vl-step[aria-pressed=true]::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:2px;background:var(--vl-vermilion)}.vl-diff{padding:22px 20px;min-width:0}.vl-diff-header{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:17px}.vl-diff-header h2{font:10px var(--vl-mono);letter-spacing:0}.vl-diff-header span{font:9px var(--vl-mono);color:var(--vl-slate)}.vl-change{display:block;font:12px/1.85 var(--vl-mono);padding:9px 11px;margin:7px 0;overflow-wrap:anywhere;text-decoration:none}.vl-removed{color:#a33317;background:#f9ece5;border-left:2px solid var(--vl-vermilion)}.vl-added{color:var(--vl-ink);background:var(--vl-stone);border-left:2px solid var(--vl-ink)}.vl-diff-note{font-size:10px;line-height:1.7;margin-top:13px}.vl-source{border-top:1px solid var(--vl-hairline);padding:15px 20px}.vl-source blockquote{font:11px/1.8 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var(--vl-mono);background:var(--vl-stone)}.vl-table th{font-weight:500}.vl-table tr:last-child td,.vl-table tr:last-child th{border-bottom:0}.vl-table td:last-child{color:var(--vl-vermilion)}.vl-calculator{padding:25px;background:var(--vl-stone);border:1px solid var(--vl-hairline)}.vl-calculator h3{font-size:28px;margin:9px 0 24px}.vl-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px 20px}.vl-field label{display:block;font:10px/1.5 var(--vl-sans);margin-bottom:7px}.vl-field input,.vl-contact input,.vl-contact textarea{width:100%;min-width:0;border:1px solid #b7b0a2;border-radius:0;background:var(--vl-paper);padding:10px 12px;color:var(--vl-ink);font:13px/1.5 var(--vl-mono)}.vl-field input{height:42px}.vl-calc-results{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid var(--vl-hairline);padding-top:21px;margin-top:22px}.vl-result strong{font:26px/1.3 var(--vl-serif);display:block;color:var(--vl-vermilion);letter-spacing:-.5px}.vl-result span{font:9px/1.6 var(--vl-mono);display:block;margin-top:7px}.vl-calc-note{font:9px/1.8 var(--vl-mono);color:var(--vl-slate);margin-top:17px}.vl-density{margin-top:23px;padding-top:19px;border-top:1px solid var(--vl-hairline)}.vl-density summary{font:11px var(--vl-mono);cursor:pointer}.vl-density .vl-fields{margin-top:16px}.vl-density-output{font:11px/1.8 var(--vl-mono);margin-top:15px}.vl-error{color:#a33317;font-size:12px;margin-top:12px;min-height:21px}.vl-manifesto{display:grid;grid-template-columns:.65fr 1fr;gap:12%;padding-top:65px;padding-bottom:65px}.vl-manifesto h2{margin:16px 0 25px}.vl-byline{display:flex;align-items:center;gap:13px;margin-top:30px}.vl-monogram{width:43px;height:43px;border:1px solid var(--vl-hairline);display:grid;place-items:center;font:italic 25px var(--vl-serif)}.vl-byline strong{font-size:11px;display:block}.vl-byline small{font:9px var(--vl-mono);color:var(--vl-slate)}.vl-manifesto-copy p{font:21px/1.55 var(--vl-serif);color:var(--vl-ink)}.vl-next{background:var(--vl-ink);color:var(--vl-paper);padding:35px;display:flex;gap:40px;justify-content:space-between;align-items:center;margin-bottom:65px}.vl-next p{color:var(--vl-paper);font-size:13px;max-width:680px}.vl-next .vl-button{flex-shrink:0}.vl-colophon{border-top:1px solid var(--vl-hairline);padding:38px var(--vl-gutter) 24px}.vl-footer-top{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:30px}.vl-colophon .vl-brand{align-items:start}.vl-colophon address{font-style:normal;font-size:11px;color:var(--vl-slate);line-height:1.9}.vl-footer-links{display:flex;gap:8px 25px;flex-wrap:wrap;align-content:start}.vl-footer-links a{font-size:11px}.vl-footer-base{border-top:1px solid var(--vl-hairline);padding-top:20px;margin-top:28px;font:9px var(--vl-mono);display:flex;gap:20px;justify-content:space-between;color:var(--vl-slate)}.vl-page-hero{padding:59px 0 46px;max-width:950px}.vl-breadcrumb{font:10px var(--vl-mono);color:var(--vl-slate);margin-bottom:30px}.vl-breadcrumb a{text-decoration:none}.vl-page-hero h1{font-size:clamp(45px,5vw,72px);margin:17px 0 23px}.vl-page-hero>p{font-size:16px;max-width:760px}.vl-page-grid{display:grid;grid-template-columns:1fr 260px;gap:9%;align-items:start;padding-bottom:60px}.vl-page-body{min-width:0}.vl-chapter{padding:30px 0;border-top:1px solid var(--vl-hairline);scroll-margin-top:30px}.vl-chapter h2{font-size:34px;line-height:1.15;margin:0 0 19px}.vl-chapter p{font-size:14px}.vl-rail{min-width:0}.vl-page-rail{position:sticky;top:30px;border-top:2px solid var(--vl-vermilion);background:var(--vl-stone);padding:24px}.vl-page-rail h2{font:11px var(--vl-mono);letter-spacing:0;margin-bottom:18px}.vl-page-rail ol{margin:0;padding-left:18px}.vl-page-rail li{font-size:11px;margin:13px 0;color:var(--vl-slate)}.vl-page-rail a{text-decoration:none}.vl-page-rail 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h2{font-size:34px;margin-bottom:20px}.vl-contact label{display:block;font-size:11px;margin:17px 0 7px}.vl-contact textarea{min-height:135px;resize:vertical;font-family:var(--vl-sans)}.vl-contact .vl-button{margin-top:20px}.vl-contact .vl-footnote{margin-top:13px}.vl-form-status{font-size:12px;color:var(--vl-ink);margin-top:13px}.vl-trap{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}.vl-policy .vl-page-body{max-width:800px}.vl-noscript{padding:12px 20px;font-size:11px;background:var(--vl-stone)}
@media(min-width:1600px){.vl-hero{gap:8%}.vl-hero-copy h1{font-size:90px}.vl-flow{min-height:270px}.vl-diff{padding:26px}}
@media(max-width:1150px){.vl-nav{gap:15px}.vl-nav a{font-size:10px}.vl-hero{gap:4%;padding-top:48px}.vl-hero-copy h1{font-size:65px}.vl-flow{grid-template-columns:108px 1fr}.vl-step{padding:12px 9px;font-size:9px}.vl-diff{padding:20px 14px}.vl-change{font-size:10px}.vl-spec-ledger>div{padding:12px 10px}.vl-page-grid{gap:6%;grid-template-columns:1fr 230px}}
@media(max-width:900px){.vl-masthead{flex-wrap:wrap}.vl-menu{display:block}.vl-nav{display:none;width:100%;flex-wrap:wrap;padding:15px 0 2px;gap:16px 24px}.vl-nav.vl-nav-open{display:flex}.vl-nav a{font-size:12px}.vl-nav .vl-nav-contact{border:0;padding:0}.vl-hero{grid-template-columns:1fr 1fr;align-items:start;padding-top:40px;gap:28px}.vl-hero-copy h1{font-size:58px;margin-top:23px}.vl-hero-copy>p{font-size:13px}.vl-actions{gap:13px}.vl-flow{grid-template-columns:1fr}.vl-step-list{flex-direction:row;border-right:0;border-bottom:1px solid var(--vl-hairline);padding:0}.vl-step{padding:11px 7px;gap:0;font-size:0;flex:1;justify-content:center}.vl-step span{font-size:11px}.vl-step[aria-pressed=true]::before{top:auto;bottom:0;left:0;right:0;width:auto;height:2px}.vl-change{font-size:11px}.vl-diff{min-height:215px}.vl-section-top{gap:7%}.vl-benchmark-grid{grid-template-columns:1fr;gap:33px}.vl-calculator{padding:28px}.vl-manifesto{gap:8%;grid-template-columns:.75fr 1fr}.vl-page-grid{grid-template-columns:1fr}.vl-page-rail{position:static;margin-bottom:32px}.vl-page-rail ol{display:flex;gap:5px 25px;flex-wrap:wrap}.vl-page-rail li{margin:5px}.vl-page-rail .vl-spec-ledger,.vl-page-rail>.vl-button{display:none}.vl-page-grid>.vl-rail{grid-row:1}.vl-footer-top{grid-template-columns:1fr 1fr}.vl-footer-links{grid-column:1/-1}.vl-price{padding:20px}.vl-price h2{font-size:24px}}
@media(max-width:620px){body{font-size:14px}.vl-masthead{padding-top:20px;padding-bottom:20px;gap:8px}.vl-wordmark{font-size:21px}.vl-wordmark small{font-size:8px}.vl-hero{grid-template-columns:1fr;padding-top:32px;padding-bottom:40px;gap:38px}.vl-hero-copy h1{font-size:62px;max-width:450px}.vl-hero-copy>p{font-size:14px;max-width:100%}.vl-hero-copy>.vl-footnote{margin-top:22px}.vl-workbench{box-shadow:5px 6px 0 var(--vl-stone)}.vl-flow{grid-template-columns:102px 1fr}.vl-step-list{flex-direction:column;border-right:1px solid var(--vl-hairline);border-bottom:0;padding:12px 0}.vl-step{font-size:9px;gap:8px;text-align:left;justify-content:start;padding:12px 8px;flex:initial}.vl-step span{font-size:9px}.vl-step[aria-pressed=true]::before{top:8px;bottom:8px;left:0;right:auto;width:2px;height:auto}.vl-diff{padding:18px 12px}.vl-diff-header{align-items:start;flex-direction:column;gap:8px}.vl-diff-header h2{font-size:9px}.vl-change{font-size:10px;padding:7px}.vl-diff-note{font-size:9px}.vl-spec-ledger dd{font-size:14px}.vl-section{padding:37px 0}.vl-section-top{grid-template-columns:1fr;gap:16px}.vl-section-top>div:last-child{padding:0}.vl-section-top h2{font-size:40px}.vl-diagram{padding:21px 15px 15px;overflow:auto}.vl-diagram svg{min-width:640px}.vl-diagram figcaption{min-width:0;display:block}.vl-diagram figcaption span{display:block;margin:5px 0}.vl-benchmark-grid h2{font-size:40px}.vl-calculator{padding:21px 17px}.vl-fields{gap:17px 13px}.vl-field label{font-size:9px}.vl-calc-results{gap:9px}.vl-result strong{font-size:25px}.vl-result span{font-size:8px}.vl-manifesto{grid-template-columns:1fr;gap:26px;padding-top:40px;padding-bottom:40px}.vl-byline{margin-top:22px}.vl-manifesto-copy p{font-size:21px}.vl-next{padding:25px;align-items:start;flex-direction:column;gap:22px;margin-bottom:40px}.vl-footer-top{grid-template-columns:1fr;gap:26px}.vl-footer-links{grid-column:auto;gap:10px 23px}.vl-footer-base{flex-direction:column;gap:12px;font-size:8px;line-height:1.9}.vl-page-hero{padding-top:31px;padding-bottom:32px}.vl-page-hero h1{font-size:48px}.vl-page-hero>p{font-size:14px}.vl-breadcrumb{margin-bottom:23px}.vl-chapter{padding:25px 0}.vl-chapter h2{font-size:31px}.vl-page-rail{padding:19px}.vl-prices{grid-template-columns:1fr}.vl-price{border-right:0;border-bottom:1px solid var(--vl-hairline);padding:25px}.vl-price h2{min-height:0}.vl-price-value{margin:15px 0}.vl-contact{padding:23px 18px}.vl-table th,.vl-table td{padding:12px;font-size:10px}.vl-table thead th{font-size:8px}.vl-page-grid{padding-bottom:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media print{.vl-masthead,.vl-colophon,.vl-menu,.vl-actions,.vl-page-rail,.vl-contact{display:none}.vl-manuscript{padding:0}.vl-page-grid,.vl-hero,.vl-section-top,.vl-manifesto{display:block}.vl-workbench{break-inside:avoid;margin:25px 0}body{background:white}.vl-next{display:none}a{color:inherit}.vl-diagram{break-inside:avoid}}