/* Acervo do Estudante — estilo único, sem dependência externa.
   Paleta tirada do logo oficial do cliente: azul #0D2D61 e dourado #EEBF44. */

:root{
  --tinta:#12233F;
  --tinta-2:#48587A;
  --tinta-3:#8996AC;
  --azul:#0D2D61;
  --azul-esc:#081B3C;
  --azul-claro:#2B4775;
  --ouro:#A87C0A;
  --ouro-claro:#EEBF44;
  --creme:#F8F5F0;
  --creme-2:#EFE9DF;
  --linha:#E3DCD0;
  --branco:#fff;
  --wa:#1FA855;
  --r:14px;
  --sombra:0 10px 34px rgba(18,35,63,.10);
  --sombra-2:0 18px 50px rgba(18,35,63,.20);
  --serif:Georgia,"Times New Roman",Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
/* Sem `overflow-x:hidden` no body: isso transforma o body em contêiner de rolagem
   e quebra os links de âncora do menu. */
body{
  margin:0;background:var(--branco);color:var(--tinta);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

/* O cabeçalho fixo cobriria o título da seção ao chegar pela âncora. */
#topo,#materiais,#como,#idiomas,#duvidas,#contato{scroll-margin-top:86px}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.15;margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
svg{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

.skip{position:absolute;left:-9999px;top:0;background:var(--azul);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}

:focus-visible{outline:3px solid var(--ouro);outline-offset:2px}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:999px;font-weight:700;font-size:15px;
  text-decoration:none;letter-spacing:.01em;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn svg{width:19px;height:19px}
.btn:hover{transform:translateY(-2px)}
.btn--gold{background:linear-gradient(160deg,var(--ouro-claro),var(--ouro));color:#221802;box-shadow:0 8px 22px rgba(168,124,10,.35)}
.btn--gold:hover{box-shadow:0 12px 28px rgba(168,124,10,.45)}
.btn--wa{background:var(--wa);color:#fff;box-shadow:0 8px 22px rgba(31,168,85,.3)}
.btn--wa svg{fill:currentColor;stroke:none}
.btn--wa:hover{background:#18904a}
.btn--ghost{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12)}
.btn--linha{border:1.5px solid var(--linha);color:var(--azul);background:#fff}
.btn--linha:hover{border-color:var(--ouro)}

/* ---------- topbar ---------- */
.topbar{background:var(--azul-esc);color:#CBD8EA;font-size:13px}
.topbar__in{display:flex;align-items:center;justify-content:center;gap:8px 22px;min-height:38px;flex-wrap:wrap;text-align:center}
.topbar li{display:inline-flex;align-items:center;gap:7px}
.topbar li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ouro-claro)}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.95);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--linha);transition:box-shadow .2s ease}
.hd.is-stuck{box-shadow:0 6px 24px rgba(18,35,63,.09)}
.hd__in{display:flex;align-items:center;gap:16px;min-height:70px}
.hd__logo{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.hd__logo img{width:42px;height:42px;border-radius:11px}
.hd__logo span{display:flex;flex-direction:column;line-height:1.12}
.hd__logo b{font-family:var(--serif);font-size:18px;color:var(--azul)}
.hd__logo i{font-style:normal;font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--tinta-2)}
.hd__nav{margin-left:auto;display:flex;gap:26px}
.hd__nav a{text-decoration:none;font-size:14.5px;font-weight:600;color:var(--tinta-2);position:relative;padding:4px 0}
.hd__nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--ouro);transition:right .25s ease}
.hd__nav a:hover{color:var(--azul)}
.hd__nav a:hover::after{right:0}
.hd__cta{padding:11px 20px;font-size:14px}
.hd__burger{display:none;flex-direction:column;gap:5px;padding:8px;margin-left:auto}
.hd__burger span{display:block;width:24px;height:2px;background:var(--azul);border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.hd__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hd__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hd__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1000px 500px at 85% 6%, rgba(238,191,68,.20), transparent 60%),
    linear-gradient(155deg,#1E4482 0%,var(--azul) 45%,#071733 100%);
  color:#fff;
}
.hero__in{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:66px;padding-bottom:70px}
.hero__eyebrow{font-size:12px;letter-spacing:.19em;text-transform:uppercase;color:var(--ouro-claro);font-weight:700;margin-bottom:16px}
.hero h1{font-size:clamp(36px,5.4vw,60px);line-height:1.04}
.hero h1 em{display:block;font-style:italic;color:var(--ouro-claro)}
.hero__sub{margin-top:20px;font-size:17px;max-width:47ch;color:#D3DEEE}
.hero__sub b{color:#fff}
.hero__btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero__pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.hero__pills li{font-size:12.5px;padding:7px 14px;border:1px solid rgba(255,255,255,.28);border-radius:999px;color:#D8E2F0}
.hero__pills li::before{content:"✓ ";color:var(--ouro-claro);font-weight:700}

/* leque de capas: substitui a foto de banco de imagem que a gente não tem */
.leque{position:relative;height:430px}
.leque img{
  position:absolute;width:47%;border-radius:8px;
  box-shadow:0 22px 50px rgba(0,0,0,.45);border:1px solid rgba(238,191,68,.40);
}
.leque img:nth-child(1){left:2%;top:52px;transform:rotate(-8deg);z-index:1}
.leque img:nth-child(2){left:27%;top:0;transform:rotate(0deg);z-index:3}
.leque img:nth-child(3){left:52%;top:52px;transform:rotate(8deg);z-index:2}
.leque__selo{
  position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);z-index:4;
  background:#fff;color:var(--azul);border-radius:12px;padding:11px 20px;
  box-shadow:var(--sombra-2);text-align:center;line-height:1.15;white-space:nowrap;
}
.leque__selo b{display:block;font-family:var(--serif);font-size:20px}
.leque__selo span{font-size:11.5px;color:var(--tinta-2);letter-spacing:.03em}

/* ---------- benefícios ---------- */
.benef{background:var(--creme);border-bottom:1px solid var(--linha)}
.benef__in{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding-top:38px;padding-bottom:38px}
.benef__i svg{width:28px;height:28px;color:var(--azul);margin-bottom:10px}
.benef__i h3{font-size:16.5px;margin-bottom:5px}
.benef__i p{font-size:14.2px;color:var(--tinta-2)}

/* ---------- seções ---------- */
.sec{padding:76px 0}
.sec--creme{background:var(--creme)}
.sec--dark{background:linear-gradient(160deg,var(--azul-esc),#123063);color:#fff}
.sec__hd{max-width:680px;margin-bottom:32px}
.sec__eyebrow{font-size:12px;letter-spacing:.19em;text-transform:uppercase;font-weight:700;color:var(--ouro);margin-bottom:12px}
.sec h2{font-size:clamp(28px,3.8vw,40px)}
.sec__sub{margin-top:14px;color:var(--tinta-2);font-size:16px}
.sec--dark .sec__eyebrow{color:var(--ouro-claro)}
.sec--dark .sec__sub,.sec--dark p{color:#CDD8E8}

/* ---------- busca + filtros ---------- */
.busca{position:relative;margin-bottom:16px;max-width:420px}
.busca input{
  width:100%;font:inherit;font-size:15px;color:var(--tinta);
  padding:13px 42px 13px 44px;border-radius:999px;border:1.5px solid var(--linha);
  background:#fff;outline:none;transition:border-color .16s,box-shadow .16s;
}
.busca input:focus{border-color:var(--azul);box-shadow:0 0 0 3px rgba(28,58,110,.12)}
.busca svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--tinta-3);pointer-events:none}
.busca__x{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:30px;height:30px;border-radius:50%;color:var(--tinta-2);font-size:20px;line-height:1;display:grid;place-items:center}
.busca__x:hover{background:var(--creme-2)}
.busca__x[hidden]{display:none}

.filtros{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:28px}
.chip{
  padding:9px 18px;border-radius:999px;border:1.5px solid var(--linha);
  font-size:14px;font-weight:600;color:var(--tinta-2);background:#fff;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--ouro);color:var(--azul)}
.chip.is-on{background:var(--azul);border-color:var(--azul);color:#fff}

/* ---------- grade de materiais ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--linha);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sombra);border-color:#D2C7B4}
.card__media{position:relative;background:var(--creme-2)}
.card__media img{aspect-ratio:3/4;object-fit:cover;width:100%}
.card__semfoto{
  aspect-ratio:3/4;display:grid;place-items:center;
  color:#B0A794;font-size:13px;letter-spacing:.08em;text-transform:uppercase;
}
.card__tag{
  position:absolute;top:10px;left:10px;background:rgba(255,255,255,.95);
  font-size:10.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;
  color:var(--azul);padding:5px 10px;border-radius:999px;box-shadow:0 2px 8px rgba(0,0,0,.10);
}
.card__pdf{
  position:absolute;top:10px;right:10px;background:rgba(8,27,60,.72);color:#fff;
  font-size:10.5px;font-weight:700;letter-spacing:.06em;padding:4px 9px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.card__zoom{
  position:absolute;bottom:10px;right:10px;width:38px;height:38px;border-radius:50%;
  background:rgba(8,27,60,.66);color:#fff;display:grid;place-items:center;
  opacity:0;transform:scale(.9);transition:all .2s ease;backdrop-filter:blur(4px);
}
.card__zoom svg{width:19px;height:19px;fill:currentColor;stroke:none}
.card:hover .card__zoom,.card__zoom:focus-visible{opacity:1;transform:scale(1)}
.card__body{padding:15px 16px 17px;display:flex;flex-direction:column;flex:1}
.card__title{font-size:17px;line-height:1.25}
.card__meta{font-size:12.5px;color:var(--tinta-2);margin-top:5px;letter-spacing:.02em}
.card__desc{font-size:13.6px;color:var(--tinta-2);margin-top:9px;flex:1}
.card__price{margin-top:13px;font-weight:800;font-size:19px;color:var(--azul);font-family:var(--serif)}
.card__price span{display:block;font-family:var(--sans);font-weight:600;font-size:12px;color:var(--tinta-2);letter-spacing:.03em;text-transform:uppercase;margin-top:2px}
.card__cta{
  margin-top:13px;display:flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 14px;border-radius:10px;background:var(--wa);color:#fff;
  text-decoration:none;font-weight:700;font-size:14px;transition:background .18s ease,gap .18s ease;
}
.card__cta svg{width:16px;height:16px}
.card__cta:hover{background:#18904a;gap:11px}

.vazio{text-align:center;padding:40px 0;color:var(--tinta-2)}
.vazio button{color:var(--azul);font-weight:700;text-decoration:underline}

/* tile de pedido dentro da grade */
.tile{
  background:var(--creme);border:1.5px dashed #D6CBB6;border-radius:var(--r);
  padding:26px 22px;display:flex;flex-direction:column;align-items:flex-start;
  text-decoration:none;transition:border-color .2s ease,background .2s ease,transform .22s ease;
}
.tile:hover{border-color:var(--ouro);background:#FFFAF0;transform:translateY(-4px)}
.tile__ic{
  width:42px;height:42px;border-radius:50%;background:var(--azul);color:var(--ouro-claro);
  display:grid;place-items:center;margin-bottom:14px;
}
.tile__ic svg{width:20px;height:20px;stroke-width:2.4}
.tile b{font-family:var(--serif);font-size:18px;line-height:1.25;color:var(--tinta)}
.tile__txt{margin-top:8px;font-size:14px;color:var(--tinta-2);flex:1}
.tile__cta{margin-top:16px;font-weight:800;font-size:14px;color:var(--azul)}

/* ---------- passos ---------- */
.passos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.passos li{background:#fff;border-radius:var(--r);padding:28px 24px 26px;border:1px solid var(--linha)}
.passos__n{
  display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
  background:var(--azul);color:var(--ouro-claro);font-family:var(--serif);font-size:20px;font-weight:700;
  margin-bottom:14px;
}
.passos h3{font-size:18px;margin-bottom:7px}
.passos p{font-size:14.8px;color:var(--tinta-2)}

/* caixa do PIX — só aparece se a chave estiver cadastrada no painel */
.pixbox{
  margin-top:26px;background:#fff;border:1.5px solid var(--linha);border-radius:var(--r);
  padding:22px 24px;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;
}
.pixbox[hidden]{display:none}
.pixbox__t{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--tinta-3);font-weight:700}
.pixbox__k{font-family:var(--serif);font-size:21px;color:var(--azul);word-break:break-all;margin-top:4px}
.pixbox__n{font-size:13.5px;color:var(--tinta-2);margin-top:4px}
.pixbox .btn{padding:12px 20px}

/* ---------- idiomas ---------- */
.idiomas{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.idiomas li{
  font-size:15px;font-weight:600;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  padding:10px 20px;border-radius:999px;
}
.idiomas li.is-mais{background:none;border-style:dashed;color:var(--ouro-claro)}

/* ---------- dúvidas ---------- */
.faq{display:grid;gap:10px;max-width:820px}
.faq details{background:#fff;border:1px solid var(--linha);border-radius:var(--r);padding:0 20px}
.faq details[open]{border-color:#D2C7B4;box-shadow:var(--sombra)}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 34px 18px 0;position:relative;
  font-family:var(--serif);font-size:17.5px;font-weight:700;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-family:var(--sans);font-size:24px;font-weight:400;color:var(--ouro);line-height:1;
}
.faq details[open] summary::after{content:"–"}
.faq p{padding:0 0 20px;font-size:15px;color:var(--tinta-2);max-width:70ch}
.faq p+p{padding-top:0;margin-top:-8px}

/* ---------- contato ---------- */
.contato{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.contato h2{margin-bottom:16px}
.contato__btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.contato__cx{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:30px 28px}
.contato__cx h3{font-size:22px;color:#fff;margin-bottom:10px}
.contato__cx p{font-size:15px;margin-bottom:20px}

/* ---------- rodapé ---------- */
.ft{background:#071733;color:#A8B6CA;padding:34px 0;font-size:13.5px}
.ft__in{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.ft__logo{width:50px;height:50px;border-radius:12px;flex:0 0 auto}
.ft__txt p+p{margin-top:3px}
.ft__txt b{color:#fff}
.ft a{color:var(--ouro-claro)}
.ft__min{color:#93A1B6;font-size:12.5px;max-width:74ch;margin-top:8px !important}

/* ---------- WhatsApp flutuante ---------- */
.wafloat{
  position:fixed;right:16px;bottom:16px;z-index:80;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--wa);color:#fff;text-decoration:none;font-weight:700;font-size:14.5px;
  padding:13px 19px;border-radius:999px;box-shadow:0 12px 30px rgba(0,0,0,.28);
  transition:transform .2s ease,box-shadow .2s ease;
}
.wafloat svg{width:23px;height:23px;fill:currentColor;stroke:none}
.wafloat:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(0,0,0,.34)}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:120;background:rgba(5,14,30,.95);display:grid;place-items:center;padding:20px}
.lb[hidden]{display:none}
.lb__fig{margin:0;max-width:min(620px,92vw);text-align:center}
.lb__fig img{max-height:78vh;width:auto;margin:0 auto;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb__fig figcaption{color:#D8E2F0;margin-top:14px;font-size:14.5px;letter-spacing:.02em}
.lb__x{position:absolute;top:12px;right:16px;font-size:38px;line-height:1;color:#fff;opacity:.8;padding:6px 12px}
.lb__x:hover{opacity:1}
.lb__nav{position:absolute;top:50%;transform:translateY(-50%);font-size:44px;line-height:1;color:#fff;opacity:.6;padding:10px 16px}
.lb__nav:hover{opacity:1}
.lb__nav--prev{left:6px}
.lb__nav--next{right:6px}
.lb__nav[hidden]{display:none}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsivo ---------- */
@media (max-width:1024px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .benef__in{grid-template-columns:repeat(2,1fr);gap:22px}
  .hero__in{gap:34px}
  .leque{height:360px}
}

@media (max-width:860px){
  .hd__nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--linha);
    flex-direction:column;gap:0;padding:6px 20px 14px;box-shadow:var(--sombra);
    display:none;
  }
  .hd__nav.is-open{display:flex}
  .hd__nav a{padding:13px 0;border-bottom:1px solid var(--creme-2);font-size:16px}
  .hd__nav a::after{display:none}
  .hd__cta{margin-left:auto;padding:10px 16px;font-size:13.5px}
  .hd__burger{display:flex;margin-left:4px}
  .hero__in{grid-template-columns:1fr;padding-top:44px;padding-bottom:56px}
  .leque{order:-1;max-width:420px;margin:0 auto 10px;width:100%;height:330px}
  .contato{grid-template-columns:1fr;gap:34px}
  .passos{grid-template-columns:1fr}
  .sec{padding:58px 0}
  .pixbox{grid-template-columns:1fr}
}

@media (max-width:640px){
  .grid{grid-template-columns:repeat(2,1fr);gap:13px}
  .card__body{padding:12px 12px 14px}
  .card__title{font-size:15px}
  .card__desc{display:none}
  .card__price{font-size:17px}
  .card__cta{font-size:13px;padding:10px 8px}
  .card__zoom{opacity:1;transform:none;width:34px;height:34px}
  .topbar__in{font-size:12px;padding-top:7px;padding-bottom:7px}
  .filtros{gap:7px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .filtros::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto;padding:8px 15px;font-size:13.5px}
  .busca{max-width:none}
  .tile{padding:20px 16px}
  .tile b{font-size:16px}
  .tile__txt{font-size:13px}
  .wafloat span{display:none}
  .wafloat{padding:14px;border-radius:50%}
  /* Logo + assinatura + botão + hambúrguer não cabem numa tela de 360px: a
     assinatura sai e o botão fica só com o ícone. */
  .hd__logo i{display:none}
  .hd__logo b{font-size:17px}
  .hd__cta span{display:none}
  .hd__cta{padding:11px;border-radius:50%}
  .hd__cta svg{width:20px;height:20px}
  .hero__pills li{font-size:12px;padding:6px 12px}
  .benef__in{grid-template-columns:1fr;gap:18px}
  .leque{height:280px}
  .ft__in{gap:14px}
  .faq summary{font-size:16px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}