:root{--gold:#d9bc73;--paper:#eae6da;--dim:#bcb6a6}html{scroll-behavior:smooth}body{background:#0b0c0c;color:var(--paper);font-family:Arial,sans-serif;font-size:17px;line-height:1.75}.container{max-width:1180px}a{color:#edcf87}button,a{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #f4d082;outline-offset:4px}main,header,footer,.address-box,.draft-history{position:relative;z-index:1}.preview-note{text-align:center;background:#272111;color:#ead39b;font:12px/1.6 Arial,sans-serif;letter-spacing:.08em;padding:10px 16px;position:relative;z-index:2}.desafio-watermarks{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}.desafio-watermarks span{position:absolute;inset-inline:0;text-align:center;top:15%;transform:rotate(-27deg);font:700 clamp(14px,2.2vw,32px)/1.4 Georgia,serif;color:#d9bd711a;overflow-wrap:anywhere}.desafio-watermarks span:nth-child(2){top:52%}.desafio-watermarks span:nth-child(3){top:84%}.site-header{position:relative;background:#0b0c0c}.header-inner{flex-wrap:wrap;gap:20px}.main-nav{flex-wrap:wrap;gap:16px}.address-box{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px 18px;margin-block:24px;padding:16px 24px;border-block:1px solid #504426;font:14px/1.6 Arial,sans-serif}.address-box a,.address-box code{overflow-wrap:anywhere;min-width:0}.address-box button{padding:8px 14px;background:#292316;color:#f2d899;border:1px solid #856d34;border-radius:4px;cursor:pointer}.address-box small{grid-column:1/-1;color:var(--dim)}.address-box output{grid-column:1/-1;font-size:13px;color:#ebd29a}.address-box output:empty{display:none}.desafio-hero{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:56px;padding:42px 0 72px;align-items:center}.desafio-hero h1{font:400 clamp(44px,5.4vw,80px)/1.05 Georgia,serif;letter-spacing:-.045em;margin:22px 0 28px}.desafio-hero h1 em{font-weight:400;color:var(--gold)}.hero-lead{font-size:23px;color:#f0d99e;line-height:1.5}.attribution,.source-note,.reserved,.case-note{font-size:14px;line-height:1.7;color:var(--dim)}.eyebrow{font-size:12px;line-height:1.6;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}.case-card{background:linear-gradient(135deg,#302719,#101110);padding:34px;border:1px solid #86733f}.case-card h2{font:400 38px/1.2 Georgia,serif;margin:20px 0}.case-card p{font-size:16px}.case-card dl{border-block:1px solid #645435;padding:18px 0}.case-card dt{color:var(--gold);font-weight:700}.case-card dd{margin:0 0 12px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.hero-actions .button{font:700 14px/1.5 Arial,sans-serif;padding:13px 20px;min-height:48px;white-space:normal}.reading-section{border-top:1px solid #514528;padding:52px 0}.reading-section>p,.reading-section>blockquote,.technical-note{max-width:880px}.reading-section h2{font:400 clamp(30px,3.8vw,49px)/1.18 Georgia,serif;letter-spacing:-.03em;color:#efe9db;margin:18px 0 25px}.reading-section p{margin:16px 0}.reading-section strong{color:#f1ddb3}.reading-section blockquote{border-inline-start:3px solid var(--gold);background:#272214;padding:24px 28px;margin:28px 0;font:400 clamp(21px,2.6vw,31px)/1.5 Georgia,serif;color:#ebd192}.reading-section cite{display:block;font:13px/1.6 Arial,sans-serif;margin-top:14px;color:#c4b79c}.comparison,.ten-eleven{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:32px 0}.comparison article,.ten-eleven article,.benefit-grid article,.explore-link{padding:25px;background:#141514;border:1px solid #43402e;min-width:0}.comparison h3{font:400 27px/1.3 Georgia,serif;margin:18px 0}.comparison .proposed-route{border-color:#b39a5a;background:#221e13}.route-label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--gold)}.technical-note{border:1px solid #625332;padding:20px;margin:26px 0;background:#171711}.technical-note summary{cursor:pointer;color:var(--gold);font-weight:700}.technical-note p{font-size:15px;line-height:1.7}.principle{font:400 28px/1.4 Georgia,serif;color:var(--gold)}.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin:32px 0}.steps article{border-top:1px solid #8c7546;padding-top:18px}.steps article>span{font:34px/1.3 Georgia,serif;color:#cfb476}.steps h3{font-size:18px;margin:15px 0}.steps p{font-size:15px}.large-number{font:400 85px/1.05 Georgia,serif;color:#dbc078}.ten-eleven h3{font-size:21px;color:#edd5a1}.benefit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:28px 0}.benefit-grid h3{font:400 26px/1.3 Georgia,serif;margin:0 0 12px;color:#e5c887}.benefit-grid p{font-size:16px}.math-box{background:#221f15;border-left:3px solid #c8a85e;padding:24px 28px;margin:28px 0}.math-box code,code{white-space:normal;overflow-wrap:anywhere;font:14px/1.6 monospace;color:#e5d6b4}.math-box h3{font-size:21px;color:var(--gold)}.dossier-section{position:relative;background:linear-gradient(125deg,#28221355,#111211);padding:45px 32px;margin:0 -32px}.explore-link{display:block;text-decoration:none;transition:border-color 150ms}.explore-link:hover{border-color:var(--gold)}.references{font-size:15px}.references li{margin:14px 0;max-width:920px}.draft-history{border:1px solid #7c6940;background:#16160f;padding:24px;margin:30px auto;color:#d1cbbb;font-size:14px}.draft-history h2{font:400 25px/1.2 Georgia,serif;color:#ecd49a}.draft-history dl{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:8px 18px}.draft-history dt{font-weight:700}.draft-history dd{margin:0;overflow-wrap:anywhere}.draft-history p{font-size:12px;line-height:1.65}.site-footer{font-size:13px;border-top:1px solid #554526;padding-block:30px}.site-footer a{display:inline}.text-link{text-decoration:underline}.skip-link{z-index:9}@media(max-width:900px){.desafio-hero{gap:26px;grid-template-columns:minmax(0,1fr)}.case-card{max-width:720px}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.header-link{display:block}.dossier-section{margin:0;padding:30px 24px}}@media(max-width:600px){body{font-size:16px;line-height:1.7}.container{padding-inline:20px}.preview-note{font-size:10px}.header-inner{padding-block:22px}.main-nav{font-size:12px;gap:14px}.address-box{grid-template-columns:minmax(0,1fr) auto;margin-top:8px;padding:16px 20px}.address-box>span{grid-column:1/-1}.desafio-hero{padding:25px 0 44px}.desafio-hero h1{font-size:47px}.hero-lead{font-size:21px}.case-card{padding:24px}.case-card h2{font-size:31px}.comparison,.ten-eleven,.benefit-grid{grid-template-columns:minmax(0,1fr)}.reading-section{padding-block:38px}.reading-section h2{font-size:33px}.reading-section blockquote{padding:20px}.steps{gap:18px}.steps p{font-size:14px}.math-box{padding:20px}.draft-history{margin-inline:20px;width:auto;padding:18px}.draft-history dl{grid-template-columns:minmax(0,1fr)}.draft-history dd{margin-bottom:10px}.hero-actions .button{width:100%;text-align:center}.dossier-section{padding:28px 20px}.large-number{font-size:64px}}@media print{.preview-note,.site-header,.hero-actions,.address-box button{display:none}.desafio-watermarks{position:fixed}.reading-section{break-inside:auto}.case-card,.benefit-grid article{break-inside:avoid}}