/* 30 Erros de Obra. Linguagem de prancha técnica: tipografia larga, réguas finas, alinhamento à esquerda. */
@font-face{font-family:Archivo;src:url('assets/archivo-var.woff2') format('woff2-variations'),url('assets/archivo-var.woff2') format('woff2');font-weight:100 900;font-stretch:62% 125%;font-display:swap}

:root{
  --ink:#15140f;--ink-2:#1f1e18;--ink-line:#ffffff1f;
  --paper:#f4f1e9;--paper-2:#ebe7db;--line:#d6d0c0;
  --text:#1c1b16;--muted:#5d5a4f;--on-ink:#f4f1e9;--on-ink-muted:#b5b1a4;
  --yellow:#f2c230;--yellow-2:#ffd451;--alert:#c8441b;
  --display:Archivo,'Arial Narrow',system-ui,sans-serif;
  --body:Archivo,system-ui,-apple-system,'Segoe UI',sans-serif;
  --tech:Archivo,'Arial Narrow',sans-serif;
  --gutter:20px;--max:1200px;
}
*,*:before,*:after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:16px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font:400 17px/1.6 var(--body);font-stretch:100%;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,p,dl,dd,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
.skip{position:fixed;left:12px;top:-80px;z-index:50;background:var(--yellow);color:var(--ink);padding:10px 16px;font-weight:700}
.skip:focus{top:12px}
.wrap{width:100%;max-width:calc(var(--max) + var(--gutter)*2);margin-inline:auto;padding-inline:var(--gutter)}

/* Tipos */
h2{font-family:var(--display);font-weight:800;font-stretch:112%;font-size:clamp(32px,7.6vw,56px);line-height:1.02;letter-spacing:-.015em;text-wrap:balance}
h3{font-family:var(--display);font-weight:700;font-stretch:108%;font-size:21px;line-height:1.2}
.label{display:flex;align-items:center;gap:14px;margin-bottom:22px;font:700 15px/1.2 var(--body);font-stretch:100%;color:var(--text)}
.callout{position:relative;flex:none;width:44px;height:44px;border:1.5px solid currentColor;border-radius:50%;display:grid;grid-template-rows:1fr 1fr;justify-items:center;font-style:normal;font-stretch:72%;line-height:1}
.callout:before{content:'';position:absolute;left:-1px;right:-1px;top:50%;height:1.5px;background:currentColor}
.callout:after{content:'';position:absolute;left:100%;top:50%;width:10px;height:1.5px;background:currentColor}
.callout b{align-self:end;padding-bottom:3px;font-size:14px;font-weight:800}
.callout i{align-self:start;padding-top:4px;font-size:10px;font-weight:600;font-style:normal;color:var(--muted)}
.lead{font-size:18px;line-height:1.6;color:var(--muted);margin-top:20px;max-width:56ch}
.lead strong{color:var(--text);font-weight:700}
.section{padding:72px 0}
.section-head{margin-bottom:40px;max-width:760px}

/* Botões */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:56px;padding:0 26px;font:700 16px/1 var(--body);font-stretch:105%;text-decoration:none;border-radius:2px;transition:background .2s,transform .2s}
.btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;transition:transform .25s}
.btn-primary{background:var(--yellow);color:var(--ink)}
.btn-primary:hover{background:var(--yellow-2)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn:active{transform:scale(.98)}
.btn-block{width:100%}
.btn-link{font-weight:600;font-size:15px;text-decoration:underline;text-decoration-color:#ffffff59;text-underline-offset:5px}
.btn-link:hover{text-decoration-color:var(--yellow)}

/* Cabeçalho */
.header{background:var(--ink);color:var(--on-ink);border-bottom:1px solid var(--ink-line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 17px/1 var(--display);font-stretch:110%}
.brand img{width:40px;height:40px;border-radius:50%}
.brand small{display:block;font:600 10px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--on-ink-muted);margin-top:4px}
.nav{display:none}
.header-cta{font:700 14px/1 var(--body);text-decoration:none;padding:11px 16px;border:1px solid #ffffff4d;border-radius:2px;transition:border-color .2s,color .2s}
.header-cta:hover{border-color:var(--yellow);color:var(--yellow)}

/* Abertura */
.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--ink);color:var(--on-ink);padding:40px 0 0}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 50%;z-index:-2;opacity:.42}
.hero:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#15140fcc 0%,#15140fe6 55%,var(--ink) 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}.hero-grid>*,.problem-grid>*,.index-grid>*,.author-grid>*,.offer-grid>*,.faq-grid>*{min-width:0}
.tag{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:22px}
.tag span{font:600 11px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;padding:7px 9px;border:1px solid #ffffff38;color:#e6e2d6}
.tag span:first-child{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}
h1{font-family:var(--display);font-weight:900;line-height:.86;letter-spacing:-.025em;display:flex;align-items:flex-end;gap:14px;margin-bottom:24px}
.h1-num{font-size:clamp(104px,29vw,220px);font-stretch:125%;color:var(--yellow);line-height:.78}
.h1-words{font-size:clamp(36px,10.2vw,84px);font-stretch:110%;text-transform:uppercase;padding-bottom:.04em}
.hero-lead{font:700 23px/1.3 var(--display);font-stretch:104%;max-width:24ch;margin-bottom:14px}
.hero-text{color:var(--on-ink-muted);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;margin-top:28px}
.hero-actions .btn{width:100%}
.hero-book{position:relative;justify-self:start;margin:8px 0 0;--w:min(54vw,250px)}
/* Livro 3D: a capa, a lombada, o corte das páginas e a contracapa são faces de uma caixa. */
.book-stage{position:relative;width:var(--w);height:calc(var(--w)*1.4145);margin-left:calc(var(--w)*.1);perspective:760px;perspective-origin:50% 45%;touch-action:pan-y;cursor:grab;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.book-stage.is-dragging{cursor:grabbing}
.book3d{--t:calc(var(--w)*.075);--h:calc(var(--w)*1.4145);position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(var(--rx,6deg)) rotateY(var(--ry,-32deg));will-change:transform}
.b-face{position:absolute;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.b-front,.b-back{inset:0}
.b-front{transform:translateZ(calc(var(--t)/2));background:#222;overflow:hidden;border-radius:0 3px 3px 0}
.b-front img{width:100%;height:100%;object-fit:cover;pointer-events:none}
.b-front:before{content:'';position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,#00000059 0,#0000 3.5%,#ffffff26 5%,#0000 8%)}
.b-glare{position:absolute;inset:0;z-index:2;background:linear-gradient(115deg,#fff0 30%,#ffffff40 48%,#fff0 62%) var(--glare,50%) 0/250% 100% no-repeat;mix-blend-mode:screen;pointer-events:none}
.b-back{transform:rotateY(180deg) translateZ(calc(var(--t)/2));background:var(--ink);color:var(--on-ink);border-radius:3px 0 0 3px;padding:calc(var(--w)*.1) calc(var(--w)*.09);display:flex;flex-direction:column;gap:calc(var(--w)*.05);box-shadow:inset 0 0 0 1px #ffffff14}
.b-back-bar{height:calc(var(--w)*.035);background:repeating-linear-gradient(-45deg,var(--yellow) 0 8px,var(--ink) 8px 16px);margin:calc(var(--w)*-.1) calc(var(--w)*-.09) 0}
.b-back-title{font:900 calc(var(--w)*.12)/.95 var(--display);font-stretch:118%;text-transform:uppercase;color:var(--yellow);margin-top:calc(var(--w)*.04)}
.b-back-text{font-size:calc(var(--w)*.052);line-height:1.45;color:var(--on-ink-muted)}
.b-back-quote{font:700 calc(var(--w)*.058)/1.3 var(--display);border-left:3px solid var(--yellow);padding-left:calc(var(--w)*.045)}
.b-back-sign{margin-top:auto;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:0 calc(var(--w)*.04);font:600 calc(var(--w)*.046)/1.35 var(--tech);font-stretch:72%;text-transform:uppercase;letter-spacing:.04em;color:var(--on-ink-muted)}
.b-back-sign img{grid-row:span 2;width:calc(var(--w)*.14);height:auto;border-radius:50%}
.b-spine{width:var(--t);height:var(--h);left:calc(50% - var(--t)/2);top:0;transform:rotateY(-90deg) translateZ(calc(var(--w)/2));background:linear-gradient(90deg,#0b0a07,#1f1d16 45%,#0b0a07);display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:calc(var(--w)*.06) 0 calc(var(--w)*.04);overflow:hidden}
.b-spine span{writing-mode:vertical-rl;transform:rotate(180deg);font:900 calc(var(--t)*.5)/1 var(--display);font-stretch:112%;text-transform:uppercase;color:var(--yellow);white-space:nowrap}
.b-spine img{width:calc(var(--t)*.72);height:auto;border-radius:50%}
.b-edge{width:var(--t);height:calc(var(--h) - 6px);top:3px;left:calc(50% - var(--t)/2);transform:rotateY(90deg) translateZ(calc(var(--w)/2 - 2px));background:repeating-linear-gradient(90deg,#f1ede2 0 1px,#d8d2c2 1px 2px);box-shadow:inset 0 0 6px #0003}
.b-top,.b-bottom{width:calc(var(--w) - 3px);height:var(--t);left:0;top:calc(50% - var(--t)/2);background:repeating-linear-gradient(0deg,#f1ede2 0 1px,#d8d2c2 1px 2px)}
.b-top{transform:rotateX(90deg) translateZ(calc(var(--h)/2 - 2px))}
.b-bottom{transform:rotateX(-90deg) translateZ(calc(var(--h)/2 - 2px))}
.book-shadow{position:absolute;left:8%;right:8%;bottom:-26px;height:30px;border-radius:50%;background:radial-gradient(closest-side,#000c,#0000);transform:scaleX(var(--shadow,1));filter:blur(4px);pointer-events:none}
.cota{position:absolute;top:0;bottom:0;right:calc(var(--w)*-.3);width:20px;border-left:1px solid var(--yellow);display:flex;align-items:center;pointer-events:none}
.cota:before,.cota:after{content:'';position:absolute;left:-6px;width:11px;height:1px;background:var(--yellow)}
.cota:before{top:0}.cota:after{bottom:0}
.cota>span{font:600 11px/1 var(--tech);font-stretch:72%;color:var(--yellow);writing-mode:vertical-rl;transform:rotate(180deg);margin-left:6px;letter-spacing:.04em;text-transform:uppercase}
.book-hint{display:flex;align-items:center;gap:8px;margin-top:40px;font:600 11px/1.3 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--on-ink-muted);transition:opacity .4s}
.book-hint svg{width:20px;height:20px;fill:none;stroke:var(--yellow);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;animation:nudge 2.4s ease-in-out infinite}
.book-hint.is-done{opacity:.45}
.book-hint.is-done svg{animation:none}
@keyframes nudge{0%,100%{transform:translateX(0)}30%{transform:translateX(-3px)}60%{transform:translateX(3px)}}
.specs{display:grid;grid-template-columns:repeat(3,1fr);margin-top:44px;border-top:1px solid var(--ink-line)}
.specs div{padding:18px 12px 22px 0}
.specs div+div{padding-left:12px;border-left:1px solid var(--ink-line)}
.specs dt{font:900 34px/1 var(--display);font-stretch:120%;color:var(--yellow)}
.specs dd{font-size:13px;line-height:1.4;color:var(--on-ink-muted);margin-top:8px}
.caution{height:10px;background:repeating-linear-gradient(-45deg,var(--yellow) 0 14px,var(--ink) 14px 28px)}

/* O problema */
.problem-grid{display:grid;gap:40px}
.ledger{border-top:2px solid var(--text);font-size:16px}
.ledger-head,.ledger-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ledger-head{padding:12px 0;font:600 11px/1.3 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--line)}
.ledger-head span:last-child{color:var(--alert)}
.ledger-row{padding:16px 0;border-bottom:1px solid var(--line);line-height:1.4}
.ledger-row span:first-child{font-weight:600}
.ledger-row span:last-child{color:var(--muted);position:relative;padding-left:16px}
.ledger-row span:last-child:before{content:'';position:absolute;left:0;top:.5em;width:7px;height:7px;background:var(--alert)}

/* Por dentro */
.inside{--mm:8px;background-color:#f1ede1;background-image:linear-gradient(#c8441b2e 1px,transparent 1px),linear-gradient(90deg,#c8441b2e 1px,transparent 1px),linear-gradient(#c8441b17 1px,transparent 1px),linear-gradient(90deg,#c8441b17 1px,transparent 1px),linear-gradient(#c8441b0c 1px,transparent 1px),linear-gradient(90deg,#c8441b0c 1px,transparent 1px);background-size:calc(var(--mm)*10) calc(var(--mm)*10),calc(var(--mm)*10) calc(var(--mm)*10),calc(var(--mm)*5) calc(var(--mm)*5),calc(var(--mm)*5) calc(var(--mm)*5),var(--mm) var(--mm),var(--mm) var(--mm);background-position:-1px -1px;border-block:1px solid var(--line)}
.inside-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 14px}
.page{position:relative;padding:0;border:0;background:#fff;cursor:zoom-in;box-shadow:0 1px 0 var(--line),0 18px 36px -20px #15140f66;transition:transform .3s}
.page img{width:100%;height:auto}
.page:hover{transform:translateY(-4px)}
.page-zoom{position:absolute;right:8px;bottom:8px;font:600 11px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;background:var(--ink);color:var(--on-ink);padding:7px 9px}
.anatomy{grid-column:1/-1;grid-row:2;counter-reset:a;border-top:2px solid var(--text);margin-top:16px}
.anatomy li{counter-increment:a;display:grid;grid-template-columns:44px 1fr;padding:18px 0;border-bottom:1px solid var(--line)}
.anatomy li:before{content:counter(a);grid-row:span 2;width:28px;height:28px;border:1.5px solid var(--alert);border-radius:50%;display:grid;place-items:center;font:800 13px/1 var(--tech);font-stretch:72%;color:var(--alert);margin-top:1px}
.anatomy b{font:700 19px/1.3 var(--display);font-stretch:108%}
.anatomy span{color:var(--muted);font-size:16px;margin-top:4px}

/* Índice */
.index-grid{display:grid;gap:8px}
.groups{border-top:2px solid var(--text)}
.groups details{border-bottom:1px solid var(--line)}
.groups summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:40px 1fr auto 20px;align-items:center;gap:10px;padding:20px 0;line-height:1.3}
.groups summary::-webkit-details-marker{display:none}
.groups summary:after,.faq summary:after{content:'';width:12px;height:12px;justify-self:end;background:linear-gradient(currentColor,currentColor) center/12px 2px no-repeat,linear-gradient(currentColor,currentColor) center/2px 12px no-repeat;transition:transform .25s}
details[open]>summary:after{transform:rotate(45deg)}
.g-num{font:600 13px/1 var(--tech);font-stretch:72%;color:var(--muted)}
.g-name{font:700 19px/1.25 var(--display);font-stretch:106%}
.g-count{font:600 11px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
details[open] .g-num{color:var(--alert)}
.groups ul{padding:0 0 22px 50px}
.groups li{position:relative;padding:7px 0;font-size:16px;line-height:1.45;border-top:1px dashed var(--line)}
.groups li:first-child{border-top:0}
.groups li:before{content:'';position:absolute;left:-22px;top:.95em;width:10px;height:2px;background:var(--yellow)}
details[open]>ul,details[open]>p{animation:open .3s ease-out both}
@keyframes open{from{opacity:0;transform:translateY(-4px)}}

/* Para quem */
.audience{background:var(--ink);color:var(--on-ink)}
.audience .label{color:var(--on-ink)}.audience .callout i{color:var(--on-ink-muted)}
.audience-grid{display:grid;gap:0;border-top:1px solid var(--ink-line)}
.audience-grid article{padding:24px 0;border-bottom:1px solid var(--ink-line)}
.audience-grid h3{color:var(--yellow);margin-bottom:8px}
.audience-grid p{color:var(--on-ink-muted);font-size:16px}

/* Autor */
.author-grid{display:grid;gap:40px}
.quote{border-left:4px solid var(--yellow);padding:6px 0 6px 22px}
.quote p{font:700 26px/1.25 var(--display);font-stretch:104%;letter-spacing:-.01em;text-wrap:balance}
.quote p:before{content:'“';color:var(--alert)}
.quote p:after{content:'”';color:var(--alert)}
.quote footer{display:flex;align-items:center;gap:12px;margin-top:22px;font-weight:700;font-size:15px}
.quote footer img{width:40px;height:40px;border-radius:50%}
.quote small{display:block;font:600 11px/1.4 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-weight:500}

/* Oferta */
.offer{background:var(--yellow);color:var(--ink)}
.offer .label{color:var(--ink)}
.offer .callout i{color:#5a4a14}
.offer .lead{color:#3d3519}
.offer-grid{display:grid;gap:36px}
.offer-card{background:var(--ink);color:var(--on-ink);padding:24px 20px;box-shadow:8px 8px 0 #15140f26}
.offer-top{display:grid;grid-template-columns:76px 1fr;gap:16px;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--ink-line)}
.offer-top img{width:76px;height:auto;box-shadow:0 10px 20px -8px #000}
.offer-kicker{font:600 11px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--yellow)}
.offer-card h3{font-size:26px;font-weight:800;font-stretch:112%;margin:8px 0 6px}
.offer-meta{font-size:14px;color:var(--on-ink-muted)}
.checks{margin:18px 0 24px}
.checks li{position:relative;padding:9px 0 9px 30px;font-size:16px;line-height:1.4}
.checks li:before{content:'';position:absolute;left:2px;top:13px;width:14px;height:8px;border-left:2px solid var(--yellow);border-bottom:2px solid var(--yellow);transform:rotate(-45deg)}
.price{font:900 44px/1 var(--display);font-stretch:118%;margin:0 0 20px}
.price[hidden]{display:none}
.purchase-note{font-size:13px;line-height:1.5;color:var(--on-ink-muted);margin-top:14px}

/* Dúvidas */
.faq-grid{display:grid;gap:28px}
.faq-list{border-top:2px solid var(--text)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:1fr 20px;gap:16px;align-items:center;padding:20px 0;font:700 18px/1.35 var(--display);font-stretch:104%}
.faq summary::-webkit-details-marker{display:none}
.faq details p{color:var(--muted);padding:0 36px 22px 0;font-size:16px}

/* Rodapé */
.footer{background:var(--ink);color:var(--on-ink);padding:40px 0 calc(110px + env(safe-area-inset-bottom))}
.footer-inner{display:grid;gap:18px}
.footer p{font-size:14px;color:var(--on-ink-muted);max-width:52ch}
.footer .copy{font:600 11px/1.4 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase}
.footer .developer-credit a{color:var(--yellow);text-decoration:underline;text-underline-offset:3px}

/* Barra de compra no celular: aparece depois da abertura e some na oferta */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px var(--gutter) calc(10px + env(safe-area-inset-bottom));background:#15140ff2;color:var(--on-ink);border-top:1px solid var(--ink-line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transform:translateY(110%);transition:transform .3s cubic-bezier(.22,1,.36,1)}
.mobile-bar.is-visible{transform:none}
.mobile-bar b{display:block;font:800 15px/1.2 var(--display);font-stretch:108%}
.mobile-bar small{font:600 10px/1.4 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--on-ink-muted)}
.mobile-bar a{background:var(--yellow);color:var(--ink);text-decoration:none;font:700 14px/1 var(--body);padding:14px 16px;border-radius:2px;white-space:nowrap}

/* Ampliação */
.lightbox{border:0;padding:0;width:min(820px,94vw);max-height:92dvh;background:var(--paper);color:var(--text)}
.lightbox::backdrop{background:#0b0a07e0}
.lightbox[open]{animation:open .25s ease-out both}
.lightbox-top{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line)}
.lightbox-top p{font-size:14px;font-weight:600}
.close-preview{cursor:pointer;background:var(--ink);color:var(--on-ink);border:0;padding:10px 14px;font:600 12px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase}
.lightbox>img{width:100%;height:auto}

/* Revelação suave */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* Tablet */
@media(max-width:639px){
  h1{gap:10px}
  .h1-num,.h1-words{font-stretch:100%}
}
@media(max-width:359px){
  .h1-num{font-size:96px}
  .h1-words{font-size:32px}
}
@media(min-width:640px){
  :root{--gutter:32px}
  .hero-actions .btn{width:auto}
  .hero-book{--w:250px}
  .inside-grid{grid-template-columns:1fr 1fr;gap:24px}
  .audience-grid{grid-template-columns:repeat(3,1fr);gap:32px;border-top:0}
  .audience-grid article{border-top:2px solid var(--yellow);border-bottom:0}
  .offer-card{padding:32px}
}

/* Desktop */
@media(min-width:960px){
  :root{--gutter:40px}
  body{font-size:18px}
  .section{padding:110px 0}
  .header-inner{height:76px}
  .nav{display:flex;gap:30px;font-size:15px;color:var(--on-ink-muted)}
  .nav a{text-decoration:none}.nav a:hover{color:var(--on-ink)}
  .hero{padding-top:72px}
  .hero-grid{grid-template-columns:1.25fr .75fr;align-items:center;gap:60px}
  .hero-bg{opacity:.55;object-position:center 60%}
  .hero:after{background:linear-gradient(90deg,var(--ink) 0%,#15140fe6 45%,#15140f99 100%)}
  .hero-lead{font-size:28px}
  .hero-book{justify-self:center;--w:300px;margin:0}
  .specs{margin-top:72px}
  .specs div{padding:24px 24px 28px 0}
  .specs div+div{padding-left:24px}
  .specs dt{font-size:48px}
  .specs dd{font-size:15px}
  .problem-grid{grid-template-columns:.9fr 1.1fr;gap:80px;align-items:end}
  .ledger{font-size:17px}
  .inside-grid{grid-template-columns:1fr 1.1fr 1fr;gap:40px;align-items:center}
  .anatomy{grid-column:2;grid-row:1;margin-top:0}
  .index-grid{grid-template-columns:.8fr 1.2fr;gap:80px;align-items:start}
  .sticky-head{position:sticky;top:40px}
  .g-name{font-size:21px}
  .author-grid{grid-template-columns:1fr 1fr;gap:80px;align-items:center}
  .quote p{font-size:34px}
  .offer-grid{grid-template-columns:1fr 480px;gap:80px;align-items:center}
  .offer-card{padding:40px}
  .faq-grid{grid-template-columns:.8fr 1.2fr;gap:80px}
  .faq summary{font-size:20px}
  .footer{padding-bottom:40px}
  .footer-inner{grid-template-columns:auto 1fr auto;align-items:center;gap:40px}
  .footer p{font-size:14px}
  .mobile-bar{display:none}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* Logo nova: símbolo largo, sem recorte redondo. */
.brand img{width:auto;height:36px;border-radius:0}
.quote footer img{width:auto;height:34px;border-radius:0}
.b-back-sign img{width:calc(var(--w)*.17);height:auto;border-radius:0}
.b-spine img{width:calc(var(--t)*.8);height:auto;border-radius:0}

/* Texto do cliente (2026-10): lista e assinatura na abertura, texto corrido no problema. */
.hero-checks{margin:20px 0 0;display:grid;gap:8px}
.hero-checks li{position:relative;padding-left:28px;font-size:16px;line-height:1.4;color:var(--on-ink)}
.hero-checks li:before{content:'';position:absolute;left:2px;top:5px;width:13px;height:7px;border-left:2px solid var(--yellow);border-bottom:2px solid var(--yellow);transform:rotate(-45deg)}
.hero-sign{margin-top:18px;font:600 13px/1.4 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--on-ink-muted)}
.lead-strong{color:var(--text);font-weight:600}
.prose{margin-top:22px;max-width:58ch;color:var(--muted)}
.prose p+p{margin-top:14px}
.prose .prose-key{color:var(--text);font:700 21px/1.35 var(--display);font-stretch:104%;border-left:4px solid var(--yellow);padding:4px 0 4px 16px;margin-top:24px}
.prose-key+p{margin-top:12px!important}
.ledger-cta{margin-top:28px;width:100%}
@media(min-width:640px){.ledger-cta{width:auto}}
@media(min-width:960px){.problem-grid{align-items:start}.problem-side{position:sticky;top:40px}.hero-checks li{font-size:17px}}
.btn{line-height:1.2;padding-block:14px;text-align:left}.btn-block{justify-content:space-between}

/* Logo Real Gama Engenharia e Construções e bônus (2026-10-26). */
.brand img{width:44px;height:44px;border-radius:50%}
.b-back-sign img{width:calc(var(--w)*.17);height:auto;border-radius:50%}
.b-spine img{width:calc(var(--t)*.8);height:auto;border-radius:50%}
.author-quote footer img,blockquote footer img{border-radius:50%}
.bonus{margin-top:22px;padding:18px;border:1px dashed var(--yellow);background:#ffffff08}
.bonus-kicker{font:700 11px/1 var(--tech);font-stretch:72%;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);background:var(--yellow);display:inline-block;padding:5px 8px}
.bonus h4{font:800 19px/1.25 var(--display);font-stretch:104%;margin:12px 0 4px;color:var(--on-ink)}
.bonus ol{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:12px}
.bonus li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start}
.bonus li b{font:700 11px/1 var(--tech);font-stretch:72%;letter-spacing:.04em;text-transform:uppercase;color:var(--yellow);border:1px solid var(--yellow);padding:5px 6px;white-space:nowrap}
.bonus li span{font-size:14px;line-height:1.45;color:var(--on-ink-muted)}
.bonus li strong{display:block;color:var(--on-ink);font-size:15px;margin-bottom:2px}