/* BTBooks · btbooks.com.br
   Cores e fontes do manual da marca. Ferrogálica carrega o site; Folha é a página de leitura;
   a Romã aparece como a fita marcadora do logo. Cada livro tem um palco numa cor da marca:
   Ferro Afia Ferro no Ferro, O Lucro que o Céu Reconhece na Romã, A Jornada do Reino na Névoa. */
:root{
  --tinta:#1E2430; --tinta-2:#262D3B; --tinta-3:#323A4A;
  --roma:#8E2234; --roma-viva:#B8384A; --roma-clara:#E9C3C9;
  --folha:#F5F5F2; --branco:#FFFFFF; --ferro:#5D6470; --nevoa:#DDE0E4; --nevoa-escura:#A9B0BA;
  --texto:#262B35; --texto-suave:#4A515C; --texto-claro:#E6E8EC;
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:"Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --saida:cubic-bezier(.22,1,.36,1);          /* ease-out quint */
  --borda:min(6vw, 64px);
  --z-topo:30; --z-menu:40;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--tinta);-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--folha);color:var(--texto);font-family:var(--sans);font-size:1.125rem;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;margin:0;text-wrap:balance;letter-spacing:-.012em}
p{margin:0 0 1.1em;text-wrap:pretty}
blockquote{margin:0}
figure{margin:0}
.pular{position:absolute;left:12px;top:-60px;background:var(--branco);color:var(--tinta);padding:10px 16px;border-radius:8px;z-index:var(--z-menu);font-weight:600}
.pular:focus{top:12px}
:focus-visible{outline:3px solid var(--roma-viva);outline-offset:3px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* a fita marcadora da marca, reaproveitada onde marca algo */
.fita{position:absolute;width:14px;background:var(--roma-viva);clip-path:polygon(0 0,100% 0,100% 100%,50% 84%,0 100%)}

/* ------------------------------------------------------------ topo */
.topo{position:sticky;top:0;z-index:var(--z-topo);background:color-mix(in oklab, var(--tinta) 94%, transparent);
  backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.topo .barra{max-width:1200px;margin:0 auto;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--borda);gap:16px}
.topo .marca img{height:31px;width:auto}
.topo nav ul{list-style:none;margin:0;padding:0;display:flex;gap:clamp(14px,3vw,34px)}
.topo nav a{position:relative;display:block;color:var(--texto-claro);text-decoration:none;font-weight:500;font-size:1.02rem;letter-spacing:.01em;padding:24px 2px}
.topo nav a:hover{color:var(--branco)}
/* a fita marcadora sobre o item atual: desce do alto da barra */
.topo nav a[aria-current="page"]{color:var(--branco)}
.topo nav a[aria-current="page"]::before{content:"";position:absolute;left:50%;top:0;width:10px;height:22px;margin-left:-5px;background:var(--roma-viva);
  clip-path:polygon(0 0,100% 0,100% 100%,50% 76%,0 100%);animation:fita-desce .9s var(--saida) both}
@keyframes fita-desce{from{clip-path:polygon(0 0,100% 0,100% 0,50% 0,0 0)}to{clip-path:polygon(0 0,100% 0,100% 100%,50% 76%,0 100%)}}

/* ------------------------------------------------------------ botões e links */
.botao{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:999px;
  font-family:var(--sans);font-weight:600;font-size:1.02rem;letter-spacing:.01em;text-decoration:none;cursor:pointer;border:1.5px solid transparent;
  transition:background-color .25s var(--saida), color .25s var(--saida), border-color .25s var(--saida), transform .25s var(--saida)}
.botao:active{transform:scale(.98)}
.botao-roma{background:var(--roma);color:var(--branco)}
.botao-roma:hover{background:var(--roma-viva)}
.botao-claro{border-color:rgba(255,255,255,.38);color:var(--branco)}
.botao-claro:hover{border-color:var(--branco);background:rgba(255,255,255,.06)}
.botao svg{width:18px;height:18px;flex:none;transition:transform .3s var(--saida)}
.botao:hover svg{transform:translateX(3px)}
.link-seta{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:600;color:var(--roma);text-decoration:none}
.link-seta svg{width:17px;height:17px;transition:transform .3s var(--saida)}
.link-seta:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:6px}
.link-seta:hover svg{transform:translateX(4px)}
.estado{display:inline-flex;align-items:center;gap:8px;font-size:.92rem;font-weight:600;color:var(--texto-suave)}
.estado .ponto{width:7px;height:7px;border-radius:50%;background:var(--roma)}
.estado.disponivel .ponto{background:#2E7D4F}

/* ------------------------------------------------------------ o livro em 3D */
.livro3d{--w:240px;--esp:12;--t:calc(var(--w) * var(--esp) / 148);--h:calc(var(--w) * 1.4189);--giro:24deg;
  position:relative;width:var(--w);height:var(--h);perspective:1600px;flex:none}
.livro3d .corpo{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateY(var(--giro)) rotateX(var(--tombo,3deg));transition:transform 1s var(--saida)}
.livro3d .face{position:absolute;top:0;backface-visibility:hidden}
.livro3d .frente{left:0;width:var(--w);height:var(--h);transform:translateZ(calc(var(--t) / 2));border-radius:2px 4px 4px 2px;overflow:hidden;background:#ddd}
.livro3d .frente img{width:100%;height:100%;object-fit:cover}
/* luz: dobra da lombada e brilho suave da capa */
.livro3d .frente::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg, rgba(0,0,0,.28) 0, rgba(0,0,0,.06) 2.2%, rgba(255,255,255,.16) 3.4%, rgba(255,255,255,0) 9%),
             linear-gradient(115deg, rgba(255,255,255,.14), rgba(255,255,255,0) 38%, rgba(0,0,0,.08))}
.livro3d .lombada{left:calc(50% - var(--t) / 2);width:var(--t);height:var(--h);transform:rotateY(-90deg) translateZ(calc(var(--w) / 2));overflow:hidden}
.livro3d .lombada img{width:100%;height:100%;object-fit:cover;filter:brightness(.82)}
.livro3d .paginas{left:calc(50% - (var(--t) - 3px) / 2);top:3px;width:calc(var(--t) - 3px);height:calc(var(--h) - 6px);
  transform:rotateY(90deg) translateZ(calc(var(--w) / 2 - 3px));background:repeating-linear-gradient(90deg,#F7F4EC 0 1px,#E4DFD3 1px 2px)}
.livro3d .topo-paginas{left:0;top:0;width:calc(var(--w) - 3px);height:calc(var(--t) - 3px);
  transform:rotateX(90deg) translateZ(calc(var(--t) / 2 - 2px)) translateY(calc(-1 * (var(--t) - 3px) / 2));background:repeating-linear-gradient(0deg,#F7F4EC 0 1px,#E4DFD3 1px 2px)}
.livro3d .verso{left:0;width:var(--w);height:var(--h);transform:rotateY(180deg) translateZ(calc(var(--t) / 2));background:#1b1b1b}
/* sombra no chão */
.livro3d::after{content:"";position:absolute;left:4%;right:-14%;bottom:-7%;height:13%;background:radial-gradient(ellipse at 45% 40%, rgba(5,8,14,.55), rgba(5,8,14,0) 70%);
  filter:blur(4px);transform:translateZ(-1px);z-index:-1;transition:transform 1s var(--saida), opacity 1s var(--saida)}
a:hover .livro3d .corpo, .livro3d.vivo:hover .corpo{transform:rotateY(10deg) rotateX(2deg) translateY(-8px)}
a:hover .livro3d::after{transform:scaleX(.92);opacity:.85}
/* entrada: o livro assenta */
.livro3d.entra .corpo{animation:assenta 1.3s var(--saida) both}
@keyframes assenta{from{transform:rotateY(52deg) rotateX(8deg) translateY(-28px);opacity:0}to{opacity:1}}

/* ------------------------------------------------------------ abertura (início) */
.abertura{background:var(--tinta);color:var(--texto-claro);position:relative;overflow:hidden}
.abertura::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 70% at 78% 55%, rgba(80,96,128,.30), transparent 70%), radial-gradient(40% 40% at 10% 0%, rgba(142,34,52,.18), transparent 70%)}
.abertura .grade{position:relative;max-width:1200px;margin:0 auto;padding:clamp(56px,9vw,112px) var(--borda) clamp(72px,10vw,128px);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:clamp(32px,5vw,72px);align-items:center}
.abertura h1{color:var(--branco);font-size:clamp(2.9rem,6.6vw,5.4rem);letter-spacing:-.024em;line-height:1}
.abertura h1 em{font-style:italic;font-weight:400;color:var(--roma-clara)}
.abertura .lead{font-size:clamp(1.15rem,1.9vw,1.34rem);line-height:1.6;color:#C9CED7;max-width:34ch;margin:28px 0 36px}
.abertura .acoes{display:flex;flex-wrap:wrap;gap:12px}
/* a estante: o livro em destaque de frente, os outros de lombada, todos em pé sobre a mesma tábua
   (um ponto de fuga só para a estante inteira, como quem olha a prateleira de frente) */
.estante-hero{position:relative;container-type:inline-size;width:100%}
.estante-hero .livros{display:flex;align-items:flex-end;justify-content:flex-end;gap:1.4cqw;padding:8cqw 5cqw 0 3cqw;perspective:1700px;perspective-origin:42% 40%}
.estante-hero .livro3d{perspective:none;--w:58cqw;--tombo:0deg;
  margin:0 calc((var(--w) - (var(--w) * cos(var(--giro)) + var(--t) * sin(var(--giro)))) / -2)}
.estante-hero[data-n="4"] .livro3d{--w:54cqw}
.estante-hero[data-n="5"] .livro3d{--w:50cqw}
.estante-hero .de-frente{--giro:30deg;z-index:2}
.estante-hero .de-lombada{--giro:84deg;filter:brightness(.86)}
.estante-hero .de-lombada::after{display:none}
.estante-hero .de-frente::after{left:4%;right:-8%;bottom:-2.5%;height:7%;background:radial-gradient(ellipse at 45% 40%, rgba(5,8,14,.6), rgba(5,8,14,0) 70%)}
.estante-hero .tabua{position:relative;height:clamp(12px,3cqw,18px);background:linear-gradient(#444D5F 0 2px,#343C4C 2px,#262D3B);border-radius:2px;
  box-shadow:0 24px 48px -14px rgba(0,0,0,.75)}
.estante-hero .tabua::after{content:"";position:absolute;left:2%;right:2%;top:100%;height:38px;background:linear-gradient(rgba(0,0,0,.35),transparent)}

/* ------------------------------------------------------------ seções */
.secao{padding:clamp(80px,11vw,144px) var(--borda)}
.secao .conteudo{max-width:1200px;margin:0 auto}
.titulo-secao{font-size:clamp(2.1rem,4.4vw,3.4rem);color:var(--tinta)}

/* palcos: a cor da marca em que cada livro se apresenta */
.palco-ferro{--p-fundo:#5D6470;--p-luz:rgba(255,255,255,.17);--p-texto:#FFFFFF;--p-suave:#E3E6EA;--p-linha:rgba(255,255,255,.2);--p-pilula:rgba(255,255,255,.14)}
.palco-roma{--p-fundo:#8E2234;--p-luz:rgba(255,196,180,.20);--p-texto:#FFFFFF;--p-suave:#F3D9DD;--p-linha:rgba(255,255,255,.22);--p-pilula:rgba(255,255,255,.14)}
.palco-nevoa{--p-fundo:#DDE0E4;--p-luz:rgba(255,255,255,.75);--p-texto:#1E2430;--p-suave:#3F4652;--p-linha:rgba(30,36,48,.16);--p-pilula:rgba(30,36,48,.07)}

/* catálogo do início: cada livro numa dobra própria, palco e texto alternando de lado */
.catalogo{background:var(--folha);padding-top:clamp(80px,10vw,128px)}
.catalogo-cabeca{max-width:1200px;margin:0 auto clamp(40px,6vw,64px);padding:0 var(--borda);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:12px 24px}
.vitrine{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:clamp(560px,50vw,680px)}
.vitrine-palco{position:relative;display:grid;place-items:center;overflow:hidden;background:var(--p-fundo);text-decoration:none;padding:56px 24px}
.vitrine-palco::before{content:"";position:absolute;inset:0;background:radial-gradient(55% 60% at 50% 46%, var(--p-luz), transparent 72%)}
.vitrine-livro{--w:clamp(210px,21vw,290px)}
.vitrine-texto{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:clamp(56px,7vw,104px) clamp(28px,6vw,96px)}
.vitrine:nth-of-type(even) .vitrine-palco{order:2}
.vitrine-autor{font-weight:600;font-size:1rem;color:var(--roma);margin:0 0 12px}
.vitrine h3{font-size:clamp(2.3rem,4.4vw,3.5rem);color:var(--tinta);letter-spacing:-.02em;margin-bottom:14px}
.vitrine-sub{font-family:var(--serif);font-style:italic;font-size:clamp(1.15rem,1.6vw,1.3rem);line-height:1.45;color:var(--texto-suave);max-width:34ch;margin:0}
.vitrine-trecho{margin:34px 0 26px;max-width:46ch}
.vitrine-trecho p{font-family:var(--serif);font-size:clamp(1.15rem,1.5vw,1.28rem);line-height:1.6;color:var(--texto);text-indent:-.42em;margin:0}
.vitrine-trecho figcaption{margin-top:12px;font-size:.92rem;color:var(--texto-suave)}

/* autores: o caminho de publicação como o sumário de um livro */
.autores{background:var(--branco)}
.autores-grade{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:clamp(40px,7vw,104px);align-items:center}
.autores-intro .titulo-secao{margin-bottom:28px;max-width:16ch}
.autores-intro p{font-size:1.12rem;line-height:1.75;color:var(--texto);max-width:56ch}
.frase{font-family:var(--serif);font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.24;color:var(--tinta);margin:40px 0 0;max-width:22ch}
.frase em{font-style:italic;color:var(--roma)}
.sumario{position:relative;background:var(--folha);border-radius:3px;padding:clamp(40px,5vw,60px) clamp(28px,4vw,52px) clamp(28px,4vw,44px);
  box-shadow:0 1px 0 rgba(30,36,48,.05), 0 30px 70px -36px rgba(30,36,48,.42)}
.sumario::before{content:"";position:absolute;right:40px;top:-1px;width:16px;height:104px;background:var(--roma);clip-path:polygon(0 0,100% 0,100% 100%,50% 84%,0 100%)}
.sumario-titulo{font-family:var(--serif);font-style:italic;font-size:1.3rem;color:var(--texto-suave);margin:0 0 10px}
.sumario ol{list-style:none;margin:0;padding:0}
.sumario li{display:grid;grid-template-columns:minmax(0,1fr) 2em;column-gap:10px;padding:18px 0;border-top:1px solid var(--nevoa)}
.sumario li > div{grid-row:1}
.sumario .cap{grid-column:2;grid-row:1;font-family:var(--serif);font-size:1.35rem;line-height:1.2;color:var(--tinta);text-align:right;font-variant-numeric:lining-nums tabular-nums}
.sumario h3{display:flex;align-items:baseline;gap:12px;font-size:1.32rem;line-height:1.2;color:var(--tinta);margin:0 0 6px}
.sumario h3::after{content:"";flex:1;min-width:24px;border-bottom:2px dotted var(--nevoa-escura);transform:translateY(-5px)}
.sumario p{margin:0;font-size:1rem;line-height:1.5;color:var(--texto-suave);max-width:36ch}
.sumario li:last-child h3,.sumario li:last-child .cap{color:var(--roma)}

/* boa terra */
.terra{background:var(--tinta);color:var(--texto-claro);position:relative;overflow:hidden}
.terra .titulo-secao{color:var(--branco)}
.terra .duas{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(32px,6vw,88px);align-items:center}
.terra blockquote{margin:30px 0 32px;font-family:var(--serif);font-style:italic;font-size:clamp(1.25rem,2.4vw,1.55rem);line-height:1.5;color:var(--branco)}
.terra blockquote footer{font-family:var(--sans);font-style:normal;font-size:.95rem;font-weight:600;letter-spacing:.04em;color:var(--roma-clara);margin-top:12px}
.terra p{line-height:1.75;color:#C9CED7}
/* as iniciais: o símbolo da marca e as duas leituras do BT */
.iniciais{display:flex;flex-direction:column;align-items:flex-start;padding-left:clamp(0px,4vw,56px)}
.iniciais img{height:clamp(104px,13vw,168px);width:auto;margin-bottom:clamp(30px,4vw,48px)}
.iniciais p{font-family:var(--serif);font-size:clamp(2.2rem,4.6vw,3.7rem);line-height:1.06;letter-spacing:-.015em;color:var(--branco);margin:0 0 .16em}
.iniciais b{font-weight:600;color:var(--roma-clara)}

/* fecho */
.fecho{background:var(--folha)}
.fecho-grade{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:end}
.fecho .simbolo{width:52px;height:auto;margin:0 0 28px}
.fecho h2{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.12;color:var(--tinta);max-width:19ch}
.fecho-acao p{color:var(--texto-suave);font-size:1.2rem;margin:0 0 24px}
.fecho-acao .contato{font-size:1rem;margin:18px 0 0}
.contato a{color:var(--roma);font-weight:600}

/* ------------------------------------------------------------ loja e estantes */
.cabeca-pagina{background:var(--tinta);color:var(--texto-claro);padding:clamp(56px,8vw,96px) var(--borda) clamp(48px,7vw,80px)}
.cabeca-pagina .conteudo{max-width:1200px;margin:0 auto}
.cabeca-pagina h1{color:var(--branco);font-size:clamp(2.6rem,6vw,4.4rem);letter-spacing:-.02em;margin-bottom:16px}
.cabeca-pagina p{color:#C9CED7;font-size:1.2rem;max-width:52ch;margin:0}
.estante{background:var(--folha)}
.estante .cabeca{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:12px 24px;margin-bottom:clamp(40px,6vw,64px)}
.prateleira{--vao:clamp(28px,4vw,56px);list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:clamp(56px,7vw,80px) var(--vao)}
.prateleira > li{display:flex}
.cartao-livro{display:flex;flex-direction:column;align-items:flex-start;text-decoration:none;color:inherit;width:100%;container-type:inline-size}
/* o livro em pé sobre a tábua da estante */
.apoio{position:relative;width:100%;padding:0 0 26px 16px;margin-bottom:26px}
.apoio::after{content:"";position:absolute;left:calc(var(--vao) / -2);right:calc(var(--vao) / -2);bottom:0;height:9px;border-radius:2px;
  background:linear-gradient(#E9EBEE,#D3D7DC);box-shadow:0 12px 20px -12px rgba(30,36,48,.45)}
.apoio .livro3d{--w:min(200px, 74cqw)}
.apoio .livro3d::after{bottom:-4%;height:8%}
.cartao-livro h3{font-size:1.5rem;color:var(--tinta);margin-bottom:6px}
.cartao-livro .por{color:var(--texto-suave);font-size:1rem;margin:0 0 12px}
.cartao-livro .resumo{color:var(--texto);font-size:1rem;line-height:1.55;margin:0 0 10px;max-width:36ch}
.cartao-livro .specs{color:var(--texto-suave);font-size:.95rem;margin:0 0 14px;font-variant-numeric:tabular-nums}
.cartao-livro .estado{margin-top:auto}
.cartao-livro .ver{margin-top:12px;font-weight:600;color:var(--roma);display:inline-flex;align-items:center;gap:8px}
.cartao-livro .ver svg{width:16px;height:16px;transition:transform .3s var(--saida)}
.cartao-livro:hover .ver svg{transform:translateX(4px)}
.cartao-livro:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.loja .apoio .livro3d{--w:min(220px, 78cqw)}

/* ------------------------------------------------------------ página do livro */
.livro-topo{background:var(--p-fundo);color:var(--p-texto);position:relative;overflow:hidden}
.livro-topo::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(48% 70% at 27% 54%, var(--p-luz), transparent 72%)}
.livro-topo .grade{position:relative;max-width:1200px;margin:0 auto;padding:clamp(48px,7vw,96px) var(--borda) clamp(64px,8vw,112px);
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(40px,7vw,96px);align-items:center}
.livro-topo .palco{display:grid;place-items:center;min-height:clamp(400px,46vw,560px)}
.livro-topo .livro3d{--w:clamp(230px,25vw,330px)}
.migalha{font-size:.98rem;color:var(--p-suave);margin:0 0 24px}
.migalha a{color:var(--p-texto);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;text-decoration-color:var(--p-linha)}
.migalha a:hover{text-decoration-color:currentColor}
.livro-topo h1{color:var(--p-texto);font-size:clamp(2.6rem,5.4vw,4.3rem);letter-spacing:-.022em;margin-bottom:16px}
.livro-topo .subtitulo{font-family:var(--serif);font-style:italic;font-size:clamp(1.2rem,2.2vw,1.45rem);line-height:1.45;color:var(--p-suave);margin:0 0 22px;max-width:34ch}
.livro-topo .autor{font-weight:600;letter-spacing:.01em;color:var(--p-texto);margin:0 0 32px}
.livro-topo .autor span{color:var(--p-suave);font-weight:400}
.compra{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px}
.palco-roma .compra .botao-roma{background:var(--branco);color:var(--roma)}
.palco-roma .compra .botao-roma:hover{background:var(--folha)}
.breve{display:inline-flex;align-items:center;gap:10px;min-height:50px;padding:0 22px;border-radius:999px;background:var(--p-pilula);color:var(--p-texto);font-weight:600;margin:0}
.breve .ponto{width:8px;height:8px;border-radius:50%;background:currentColor;opacity:.75}
.compra .aviso{font-size:.98rem;color:var(--p-suave);margin:0;max-width:30ch}
.ficha{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,max-content));gap:18px 40px;margin:44px 0 0;padding:28px 0 0;border-top:1px solid var(--nevoa);max-width:64ch}
.ficha dt{font-size:.86rem;color:var(--texto-suave);margin:0 0 2px}
.ficha dd{margin:0;color:var(--tinta);font-weight:600;font-variant-numeric:tabular-nums}

.sobre-livro .duas{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(40px,7vw,104px);align-items:start}
.sobre-livro.sem-lista .duas{grid-template-columns:minmax(0,1fr);max-width:70ch}
.sobre-livro .texto .chamada{font-family:var(--serif);font-size:clamp(1.9rem,3.8vw,2.8rem);line-height:1.16;color:var(--tinta);margin:0 0 30px}
.sobre-livro .texto p{font-size:1.15rem;line-height:1.8;max-width:64ch}
.versiculo{margin:38px 0 0;padding:28px 0 0;border-top:1px solid var(--nevoa);max-width:52ch}
.versiculo p{font-family:var(--serif);font-style:italic;font-size:1.35rem;line-height:1.5;color:var(--tinta);margin:0 0 10px;text-indent:-.4em}
.versiculo figcaption{font-weight:600;font-size:.95rem;color:var(--roma)}
.indice{position:relative;background:var(--branco);border-radius:4px;padding:clamp(34px,4vw,48px) clamp(26px,3.6vw,40px);box-shadow:0 26px 60px -40px rgba(30,36,48,.45)}
.indice::before{content:"";position:absolute;right:32px;top:-1px;width:14px;height:80px;background:var(--roma);clip-path:polygon(0 0,100% 0,100% 100%,50% 84%,0 100%)}
.indice h2{font-size:1.65rem;color:var(--tinta);margin-bottom:18px;padding-right:40px}
.indice ol{list-style:none;margin:0;padding:0;counter-reset:item}
.indice li{counter-increment:item;display:grid;grid-template-columns:2.4em 1fr;gap:6px;padding:11px 0;border-top:1px solid var(--nevoa);font-size:1.02rem;line-height:1.4}
.indice li::before{content:counter(item, decimal-leading-zero);font-family:var(--serif);font-weight:600;color:var(--roma);font-variant-numeric:tabular-nums}
.indice .fecho-lista{margin:18px 0 0;font-family:var(--serif);font-style:italic;color:var(--texto-suave)}

.trecho-livro{background:var(--tinta);padding:clamp(88px,12vw,152px) var(--borda);position:relative;overflow:hidden}
.trecho-livro::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 80% at 85% 20%, rgba(142,34,52,.20), transparent 70%)}
.trecho-livro figure{position:relative;max-width:920px;margin:0 auto}
.trecho-livro figure::before{content:"";position:absolute;left:0;top:calc(-1 * clamp(88px,12vw,152px));width:14px;height:clamp(52px,7vw,84px);background:var(--roma-viva);clip-path:polygon(0 0,100% 0,100% 100%,50% 84%,0 100%)}
.trecho-livro blockquote p{font-family:var(--serif);font-size:clamp(1.6rem,3.5vw,2.55rem);line-height:1.32;letter-spacing:-.01em;color:var(--branco);text-indent:-.42em;margin:0}
.trecho-livro figcaption{margin-top:30px;color:var(--roma-clara);font-weight:600;font-size:1rem}
.trecho-livro cite{font-family:var(--serif);font-style:italic;font-weight:400}

.autor-bloco{background:var(--branco)}
.autor-bloco .duas{display:grid;grid-template-columns:minmax(150px,260px) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:center;max-width:1000px}
.autor-bloco img,.monograma{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:6px}
.monograma{display:grid;place-items:center;background:var(--tinta);color:var(--branco);font-family:var(--serif);font-size:clamp(3rem,6vw,4.4rem);position:relative}
.autor-bloco h2{font-size:clamp(1.9rem,3.6vw,2.6rem);color:var(--tinta);margin:0 0 18px}
.autor-bloco p{font-size:1.12rem;line-height:1.78;max-width:64ch;margin:0}

.outros{background:var(--folha)}

/* 404 */
.nao-achou{min-height:56vh;display:grid;align-items:center}
.nao-achou .acoes{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ------------------------------------------------------------ rodapé */
.rodape{background:var(--tinta);color:var(--nevoa-escura);padding:56px var(--borda) 40px;font-size:.98rem}
.rodape .conteudo{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr;gap:32px 48px}
.rodape img{height:34px;width:auto;margin-bottom:16px}
.rodape p{max-width:48ch;margin:0 0 8px}
.rodape a{color:var(--texto-claro)}
.rodape nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:flex-end}
.rodape nav a{text-decoration:none}
.rodape nav a:hover{color:var(--branco);text-decoration:underline}
.rodape .legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.08);padding-top:22px;font-size:.9rem}

/* ------------------------------------------------------------ movimento ao rolar (o conteúdo já nasce visível; o JS só anima) */
.anima .revela{opacity:0;transform:translateY(18px)}
.anima .revela.visto{opacity:1;transform:none;transition:opacity .9s var(--saida), transform .9s var(--saida)}
/* no catálogo, o livro gira até assentar e o texto sobe logo depois */
.anima .vitrine.revela{opacity:1;transform:none}
.anima .vitrine.revela .corpo{opacity:0;transform:rotateY(62deg) rotateX(8deg) translateY(-26px)}
.anima .vitrine.revela .vitrine-texto{opacity:0;transform:translateY(16px)}
.anima .vitrine.revela.visto .corpo{opacity:1;transform:rotateY(var(--giro)) rotateX(3deg);transition:transform 1.5s var(--saida), opacity .9s var(--saida)}
.anima .vitrine.revela.visto .vitrine-texto{opacity:1;transform:none;transition:opacity .9s var(--saida) .18s, transform .9s var(--saida) .18s}
.anima .vitrine.visto .vitrine-palco:hover .corpo{transform:rotateY(10deg) rotateX(2deg) translateY(-8px);transition:transform 1s var(--saida)}
/* no sumário, as etapas entram uma depois da outra (o atraso vem do JS) */
.anima .sumario li.revela{transform:translateX(-10px)}

/* ------------------------------------------------------------ telas menores */
@media (max-width: 960px){
  .abertura .grade,.livro-topo .grade,.sobre-livro .duas,.terra .duas,.autores-grade,.fecho-grade{grid-template-columns:minmax(0,1fr)}
  .estante-hero{max-width:560px;margin:0 auto}
  .livro-topo .palco{min-height:auto;padding-top:8px}
  .vitrine{grid-template-columns:minmax(0,1fr);min-height:0}
  .vitrine:nth-of-type(even) .vitrine-palco{order:0}
  .vitrine-palco{min-height:clamp(420px,80vw,560px)}
  .vitrine-livro{--w:clamp(190px,40vw,260px)}
  .vitrine-texto{padding:44px var(--borda) 64px}
  .iniciais{padding-left:0}
  .fecho-grade{align-items:start}
}
@media (max-width: 640px){
  body{font-size:1.0625rem}
  .topo .barra{height:64px}
  .topo .marca img{height:24px}
  .topo nav a{font-size:.98rem;padding:21px 0}
  .topo nav ul{gap:16px}
  .abertura .acoes .botao,.fecho-acao .botao,.nao-achou .botao{width:100%}
  .rodape .conteudo{grid-template-columns:minmax(0,1fr)}
  .rodape nav ul{justify-content:flex-start}
  .autor-bloco .duas{grid-template-columns:minmax(0,1fr)}
  .autor-bloco img,.monograma{max-width:220px}
  .sumario{padding-left:22px;padding-right:22px}
  .sumario::before{right:24px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .anima .revela,.anima .vitrine.revela .corpo,.anima .vitrine.revela .vitrine-texto{opacity:1;transform:none}
  .anima .vitrine.revela .corpo{transform:rotateY(var(--giro)) rotateX(3deg)}
}