@font-face{font-family:DM;src:url(/fonts/dm-sans.ttf)format("truetype");font-weight:100 1000;font-display:swap}:root{color-scheme:dark;--gutter:58px;--paper:#111215;--ink:#f7f7f8;--muted:#bdc2ca;--line:#3c4149;--surface:#1b1e23;--accent:#d2285a;--accent-hover:#bc1f4c;--accent-light:#f58dab;--diagram-ink:#9a2448;--display:DM,"Trebuchet MS",sans-serif;--body:DM,"Trebuchet MS",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:26px}body{background:var(--paper);color:var(--ink);font-family:var(--body);margin:0;font-size:17px;line-height:1.6}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--display);letter-spacing:-.035em;font-weight:750;line-height:1.1}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}a:hover{text-decoration-color:var(--accent-light)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}:focus-visible{outline:3px solid var(--accent-light);outline-offset:5px}img{max-width:100%;height:auto;display:block}.wrap{max-width:1440px;padding-inline:var(--gutter);margin-inline:auto}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip{z-index:10;background:var(--accent);color:#fff;padding:12px;position:absolute;top:-100px;left:16px}.skip:focus{top:8px}.masthead{justify-content:space-between;align-items:center;gap:28px;min-height:72px;padding-block:16px;display:flex}.brand{letter-spacing:.055em;white-space:nowrap;font-size:20px;font-weight:800;line-height:1.25;text-decoration:none}.masthead nav{white-space:nowrap;align-items:center;gap:34px;font-size:14px;display:flex}.masthead nav a{border-bottom:3px solid #0000;padding-block:9px;text-decoration:none}.masthead nav a[aria-current=page]{border-bottom-color:var(--accent);font-weight:650}.masthead nav a:hover{color:#fff;border-bottom-color:var(--accent)}.site-search{flex:0 324px;min-width:190px;position:relative}.site-search form{background:var(--surface);border:1px solid var(--line);border-radius:2px;align-items:center;gap:12px;padding:8px 11px;display:flex}.site-search input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;padding:0;font-size:13px;line-height:1.5}.site-search input::placeholder{color:var(--muted);opacity:1}.site-search input:focus-visible{outline-offset:4px}.icon{filter:invert();vertical-align:middle;flex-shrink:0;width:24px;height:24px;display:inline-block}.site-search .icon{width:21px;height:21px}.search-results{z-index:5;background:var(--surface);border:1px solid var(--line);width:min(400px,100vw - 44px);padding:17px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 10px 28px #0005}.search-results[hidden]{display:none}.search-status{color:var(--muted);margin-bottom:10px;font-size:12px}.search-results ul{margin:0;padding:0;list-style:none}.search-results a{padding:11px 0;font-size:15px;line-height:1.4;text-decoration:none;display:block}.search-results li+li{border-top:1px solid var(--line)}.intro{padding-block:26px 27px}.intro h1{letter-spacing:-.015em;margin:0 0 3px;font-size:clamp(40px,4.7vw,68px);font-weight:800;line-height:1}.intro>p{color:var(--muted);margin:0;font-size:clamp(20px,2.04vw,29px);line-height:1.4}.guide-grid{grid-template-columns:1.425fr 1fr;align-items:start;gap:36px;display:grid}.guide-card{min-width:0}.guide-card:nth-child(2n){position:relative}.guide-card:nth-child(2n):before{content:"";background:var(--line);width:1px;position:absolute;top:0;bottom:0;left:-18px}.card-art{background:var(--surface);height:clamp(300px,36.4vw,510px);display:block;overflow:hidden}.card-art img{object-fit:cover;width:100%;height:100%;transition:transform .3s}.card-art:hover img{transform:scale(1.015)}.image-caption{color:var(--muted);margin:7px 0 16px;font-size:12px;line-height:1.4}.eyebrow{letter-spacing:.15em;text-transform:uppercase;font-size:12px;font-weight:750;line-height:1.5;text-decoration:none;display:block}.card-copy h2{letter-spacing:-.015em;margin:12px 0;font-size:clamp(32px,3.5vw,50px);font-weight:800;line-height:1}.guide-card:not(.featured) .card-copy h2{letter-spacing:-.025em;font-size:clamp(28px,2.3vw,32px);line-height:1.06}.card-copy h2 a{text-decoration:none}.card-copy>p{color:var(--muted);margin:0 0 15px;font-size:clamp(17px,1.65vw,24px);line-height:1.4}.guide-card:not(.featured) .card-copy>p{font-size:clamp(16px,1.45vw,21px)}.card-actions{flex-wrap:wrap;align-items:center;gap:12px 27px;margin-top:14px;display:flex}.button{background:var(--accent);color:#fff;border:1px solid #0000;border-radius:0;justify-content:center;align-items:center;gap:24px;min-height:48px;padding:11px 22px;font-size:19px;font-weight:700;line-height:1.5;text-decoration:none;display:inline-flex}.button:hover{background:var(--accent-hover);color:#fff}.button.secondary{border-color:var(--line);color:var(--ink);background:0 0}.text-link{border-bottom:1px solid;align-items:center;gap:22px;padding-bottom:4px;font-size:19px;font-weight:650;text-decoration:none;display:inline-flex}.download-link{white-space:normal;font-size:16px;line-height:1.5}.footer{justify-content:space-between;align-items:center;gap:24px;margin-top:34px;padding-block:20px;display:flex;position:relative}.footer:before{content:"";left:var(--gutter);right:var(--gutter);border-top:1px solid var(--line);position:absolute;top:0}.footer>p{margin:0;font-size:16px;line-height:1.5}.footer-links{border-left:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:24px;padding-left:25px;font-size:12px;line-height:1.7;display:flex}.footer-links a{text-decoration:none}.footer-links span{color:var(--muted);font-size:11px}.category-intro{padding-block:50px 28px}.category-intro h1{margin:16px 0;font-size:clamp(42px,5vw,64px)}.category-intro p{color:var(--muted);font-size:20px}.empty-state{grid-column:1/-1;max-width:950px;min-height:260px;padding-block:40px}.empty-state h2{font-size:32px}.empty-state p{color:var(--muted)}.article-wrap{padding-top:30px}.article-wrap:before{content:"";border-top:1px solid var(--line);margin-bottom:35px;display:block}.article-columns{grid-template-columns:190px minmax(0,1fr);gap:45px;max-width:1180px;margin:auto;display:grid}.toc{border-right:1px solid var(--line);align-self:start;min-height:430px;padding-right:24px;position:sticky;top:28px}.toc .eyebrow{letter-spacing:.07em;color:var(--muted);font-size:10px}.toc nav{flex-direction:column;gap:13px;margin-top:20px;display:flex}.toc nav a{border-left:3px solid #0000;margin-left:-3px;padding:3px 0 3px 12px;font-size:14px;line-height:1.45;text-decoration:none}.toc nav a[aria-current=location]{border-color:var(--accent);color:var(--accent-light);font-weight:700}.toc nav a:hover{color:var(--accent-light)}.tiny-link{color:var(--muted);margin-top:30px;font-size:11px;display:block}.article-main{min-width:0}.breadcrumb{color:var(--muted);font-size:14px;text-decoration:none}.article-heading h1{letter-spacing:-.035em;margin:17px 0;font-size:clamp(40px,4.2vw,60px);font-weight:800;line-height:1.08}.deck{color:var(--ink);max-width:850px;margin-bottom:16px;font-size:24px;line-height:1.5}.byline{color:var(--muted);margin-bottom:20px;font-size:14px}.byline span{padding-inline:6px}.prose{min-width:0;font-size:17px;line-height:1.7}.prose>p{max-width:78ch}.prose p{margin-bottom:19px}.prose h2{letter-spacing:-.03em;border-top:1px solid var(--line);margin:35px 0 13px;padding-top:25px;font-size:36px;font-weight:800;line-height:1.15}.prose h3{margin:27px 0 14px;font-size:26px;line-height:1.2}.prose li{margin:8px 0}.prose strong{font-weight:700}.prose a:not(.button){text-decoration-color:#717781}.prose a:not(.button):hover{color:var(--accent-light)}.prose blockquote{border-left:3px solid var(--accent);background:var(--surface);margin:27px 0;padding:16px 22px;font-size:16px}.prose blockquote p:last-child{margin-bottom:0}.prose code{background:var(--surface);padding:2px 5px;font-size:.85em}.download-row{flex-wrap:wrap;gap:12px;margin:20px 0;display:flex}.prose .button{gap:16px;padding:9px 18px;font-size:15px}.measurement-visual{color:#111215;color-scheme:light;background:#f7f7f7;grid-template-columns:1.4fr 1fr;gap:15px;margin:20px 0;padding:18px 20px 14px;display:grid}.measurement-visual>div{align-self:center;min-width:0}.measurement-visual img{width:100%;height:auto}.measurement-visual figcaption{color:#4b5260;margin-top:7px;font-size:11px;line-height:1.5}.measurement-visual ol{counter-reset:measure;margin:0;padding:0;list-style:none}.measurement-visual li{counter-increment:measure;margin:0 0 14px;padding-left:33px;font-size:13px;line-height:1.4;position:relative}.measurement-visual li:last-child{margin-bottom:0}.measurement-visual li:before{content:counter(measure);border:1px solid var(--diagram-ink);color:var(--diagram-ink);border-radius:50%;place-items:center;width:24px;height:24px;font-weight:750;display:grid;position:absolute;top:0;left:0}.measurement-visual strong,.measurement-visual span{display:block}.measurement-visual strong{margin-bottom:4px;font-size:14px}.table-scroll{scrollbar-color:#717781 var(--surface);max-width:100%;overflow-x:auto}.prose table{border-collapse:collapse;text-align:left;width:100%;margin:18px 0 12px;font-size:14px;line-height:1.5}.prose td,.prose th{border:1px solid var(--line);vertical-align:top;padding:12px 14px}.prose thead th{background:var(--surface);white-space:nowrap;font-weight:700}.prose tbody th{background:0 0;font-weight:550}.product-table{min-width:650px}.product-table th:first-child{width:27%}.product-table td:not(:last-child){white-space:nowrap}.product-table small{color:var(--muted);margin-top:6px;font-size:11px;font-weight:400;line-height:1.5;display:block}.figure-note{color:var(--muted);font-size:12px;line-height:1.5}.prose .inline-diagram{width:100%;margin:20px 0}.information-preview{border-left:3px solid var(--accent);background:var(--surface);color:var(--muted);padding:12px 18px;font-size:15px}.tool{background:0 0;margin:24px 0 32px;padding:0}.tool .eyebrow{color:var(--muted);font-size:10px}.tool h3{margin:10px 0;font-size:27px}.tool .tool-intro{color:var(--muted);margin-bottom:18px;font-size:15px;line-height:1.6}.tool-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;display:grid}.tool label{flex-direction:column;gap:7px;font-size:12px;line-height:1.4;display:flex}.tool-grid label:last-child{grid-column:1/4}.tool input,.tool select{background:var(--surface);width:100%;min-height:42px;color:var(--ink);border:1px solid #646b76;border-radius:0;padding:8px 10px;font-size:15px}.tool .tool-result{border-top:1px solid var(--line);margin-top:18px;padding-top:16px;font-size:15px;line-height:1.55}.tool-result strong{font-size:17px}.tool-result ul{padding-left:20px;font-size:14px}.tool small{color:var(--muted);font-size:12px;line-height:1.5;display:block}.tool-action{margin-top:16px}.demo-controls{grid-template-columns:1fr 1fr;gap:16px;display:grid}#calendar-table{min-width:580px}.status-chip{white-space:nowrap;border:1px solid #737b89;padding:2px 5px;font-size:11px}.hidden{display:none!important}.sources{color:var(--muted);margin-top:34px;font-size:15px}.sources h2{color:var(--ink)}.sources ul{padding-left:22px}.sources a{color:#aac9ef;overflow-wrap:anywhere}.simple-page{max-width:1000px;padding-block:60px}.simple-page h1{margin:21px 0;font-size:clamp(43px,5vw,64px)}.simple-page .deck{font-size:24px}@media (width>=1441px){.intro{padding-top:32px}}@media (width<=1250px){:root{--gutter:38px}.wrap{padding-inline:var(--gutter)}.masthead{gap:20px}.brand{font-size:17px}.masthead nav{gap:21px;font-size:13px}.site-search{flex-basis:240px}.footer{align-items:start}.footer-links{gap:16px}.article-columns{grid-template-columns:165px minmax(0,1fr);gap:30px}.card-actions{gap:14px}.button{gap:18px;padding:10px 16px;font-size:17px}.download-link{font-size:14px}}@media (width<=1000px){.masthead{flex-wrap:wrap;gap:8px 24px;padding-block:20px}.brand{font-size:18px}.site-search{flex:100%;order:2;margin-top:4px}.masthead nav{margin-left:auto}.intro{padding-top:21px}.card-art{height:clamp(270px,36vw,360px)}.guide-grid{gap:28px}.guide-card:nth-child(2n):before{left:-14px}.card-copy h2{font-size:36px}.guide-card:not(.featured) .card-copy h2{font-size:29px}.card-copy>p{font-size:19px}.guide-card:not(.featured) .card-copy>p{font-size:17px}.article-columns{grid-template-columns:145px minmax(0,1fr);gap:27px}.toc{padding-right:15px}.toc nav a{font-size:12px}.deck{font-size:20px}.prose h2{font-size:30px}.measurement-visual{grid-template-columns:1fr;padding:17px}.measurement-visual ol{grid-template-columns:1fr 1fr;gap:14px;display:grid}.measurement-visual li{margin:0}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-grid label:last-child{grid-column:auto}.footer{flex-direction:column;gap:15px}.footer-links{border-left:0;padding-left:0}}@media (width>=900px) and (width<=1000px){.masthead{flex-wrap:nowrap;gap:18px;padding-block:16px}.brand{font-size:15px}.masthead nav{gap:15px;font-size:11px}.site-search{flex:0 190px;order:0;margin:0}.site-search input{font-size:11px}.site-search form{gap:8px;padding:7px 8px}.site-search .icon{width:18px;height:18px}.article-heading h1{font-size:44px}}@media (width>=850px) and (width<=1000px){.measurement-visual{grid-template-columns:1.4fr 1fr;gap:15px;padding:16px}.measurement-visual ol{display:block}.measurement-visual li{margin-bottom:14px}}@media (width<=650px){:root{--gutter:22px}body{font-size:16px}.wrap{padding-inline:var(--gutter)}.masthead{gap:14px;padding-block:20px 10px}.brand{font-size:18px}.masthead nav{white-space:normal;flex-basis:100%;order:2;justify-content:space-between;gap:0;margin:0;font-size:11px}.site-search{order:3;margin:0}.site-search input{font-size:14px}.intro{padding-block:27px 25px}.intro h1{max-width:530px;margin-bottom:12px;font-size:42px;line-height:1.08}.intro>p{max-width:350px;font-size:20px}.guide-grid{grid-template-columns:1fr;gap:36px}.guide-card:nth-child(2n):before{display:none}.card-art{aspect-ratio:1.44;height:auto}.card-art.calendar{aspect-ratio:1.3}.image-caption{margin:7px 0 16px;font-size:11px}.card-copy h2,.guide-card:not(.featured) .card-copy h2{margin:10px 0 12px;font-size:34px;line-height:1.07}.card-copy>p,.guide-card:not(.featured) .card-copy>p{font-size:18px}.eyebrow{font-size:10px}.card-actions{gap:16px}.button{min-height:46px;padding:10px 17px;font-size:16px}.text-link{font-size:17px}.download-link{font-size:14px}.footer{margin-top:30px;padding-block:23px}.footer>p{font-size:14px}.footer-links{gap:12px 18px;font-size:11px}.article-wrap{padding-top:20px}.article-wrap:before{margin-bottom:22px}.article-columns{flex-direction:column;gap:25px;display:flex}.toc{border-right:0;border-bottom:1px solid var(--line);min-height:0;padding:0 0 17px;position:static}.toc nav{flex-flow:wrap;gap:8px 13px;margin-top:10px;display:flex}.toc nav a{border-bottom:2px solid #0000;border-left:0;margin:0;padding:3px 0;font-size:12px}.toc nav a[aria-current=location]{border-bottom-color:var(--accent)}.tiny-link{display:none}.article-heading h1{margin:13px 0 16px;font-size:39px}.breadcrumb{font-size:12px}.deck{font-size:19px}.byline{font-size:12px;line-height:1.7}.byline span{padding-inline:4px}.prose{font-size:16px;line-height:1.7}.prose h2{margin-top:30px;padding-top:23px;font-size:29px}.prose h3{font-size:24px}.measurement-visual{gap:16px;margin-inline:0;padding:15px 12px}.measurement-visual ol{grid-template-columns:1fr}.measurement-visual li{font-size:13px}.measurement-visual figcaption{font-size:10px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.tool-grid label:last-child{grid-column:1/-1}.tool input,.tool select{min-height:44px;font-size:16px}.demo-controls{grid-template-columns:1fr}.prose .button{font-size:14px}.simple-page{padding-block:35px}.simple-page .deck{font-size:20px}.category-intro{padding-block:30px 20px}.category-intro h1{font-size:43px}.empty-state{padding-block:25px}.search-results{width:100%;left:0;right:auto}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card-art img{transition:none}}@media print{.masthead,.footer,.toc,.skip,.card-actions{display:none}.wrap{padding:0}.article-columns{display:block}.prose a{color:#000}.tool{break-inside:avoid}body{color:#000;background:#fff}.prose,.deck,.byline,.figure-note,.sources{color:#000}.table-scroll{overflow:visible}.prose td,.prose th{border-color:#888}.prose thead th{background:#eee}.tool input,.tool select{color:#000;background:#fff;border-color:#888}}
