:root{--ink:#101217;--muted:#566171;--paper:#f7f8f4;--line:#dce1d9;--green:#095a47;--lime:#ddf78d;--radius:18px;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #1254cc;outline-offset:5px}[hidden]{display:none!important}.wrap{max-width:1280px;margin-inline:auto;padding-inline:40px}.skip{position:fixed;top:-100px;left:20px;padding:15px;background:white;z-index:20}.skip:focus{top:10px}.site-header{height:104px;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line)}.brand{display:flex;margin-right:auto}.brand img,.footer-brand 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@media(max-width:760px){.site-header{height:85px;gap:18px}.brand img{width:139px}.primary{gap:15px;font-size:12px}.primary a:last-child{display:none}.language summary{padding:10px 12px}.hero{grid-template-columns:1fr;gap:40px;padding-top:44px}.hero-copy{max-width:600px}.hero h1{font-size:clamp(42px,8.5vw,65px)}.intro{max-width:540px;font-size:16px}.hero-board{max-width:490px;width:100%;justify-self:center;transform:rotate(-1deg)}.feature-main{padding:21px 24px}.sample-equation strong{font-size:68px}.example-label{margin-top:15px}.feature-small{min-height:105px}.directory{padding-top:35px}.section-heading{display:block}.section-heading>p{max-width:100%;margin-top:14px}h2{font-size:31px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card-link{min-height:275px}.approach{display:block}.approach-heading{max-width:450px;margin-bottom:30px}.principles{gap:24px}.site-footer{grid-template-columns:1fr}.site-footer nav{justify-content:start;padding-top:0}.footer-bottom{margin-top:10px}.board-decoration{right:-9px;font-size:57px}.search-mark{display:none}}
@media(max-width:440px){.wrap{padding-inline:20px}.site-header{gap:10px}.brand img{width:126px}.primary{font-size:11px}.language summary{padding:9px 10px;gap:7px;font-size:11px}.hero h1{font-size:43px;letter-spacing:-2.1px}.hero .eyebrow{font-size:9px;letter-spacing:1.1px}.intro{font-size:15px}.hero-notes{gap:10px 13px}.hero-board{padding:15px}.board-label{font-size:10px}.feature-small .feature-name{font-size:12px}.feature-main{padding:19px 21px}.sample-equation{font-size:19px}.feature-small{padding:16px}.section-heading h2{font-size:30px}.filters{gap:7px}.filters button{padding:9px 11px;font-size:11px}.search-box{padding-inline:13px;gap:10px}.search-box input{font-size:13px}.tool-grid{grid-template-columns:1fr}.card-link{min-height:235px;padding:21px}.card-bottom{display:flex;align-items:center}.open-label{display:inline;margin-top:0;text-align:right}.principles{grid-template-columns:1fr;gap:13px}.principle-number{margin-bottom:12px;padding-bottom:12px}.principles h3{margin-top:0}.principles p{margin-bottom:16px}.footer-bottom{gap:15px;flex-wrap:wrap}.legal>p:not(.eyebrow){font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.hero-copy,.hero-board,.feature-small{min-width:0}.hero-board{max-width:100%}.feature-pair{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-name,.hero h1,.tool-card h3{overflow-wrap:anywhere}.board-decoration{right:0}
