/* ============================================================
   CODUP — landing conceitual
   Sistema derivado do CODUP Brandbook v1.0 (2026)
   Módulo-base 8 / grid 12 col / regra de cor 70-25-05
   ============================================================ */

:root{
  /* paleta oficial */
  --chumbo:#252A34;
  --cobalto:#1768FF;
  --gelo:#F3F6FC;
  --branco:#FFFFFF;

  /* derivadas (apenas opacidades do chumbo, sem cores novas) */
  --chumbo-70:rgba(37,42,52,.70);
  --chumbo-16:rgba(37,42,52,.16);
  --chumbo-08:rgba(37,42,52,.08);
  --gelo-70:rgba(243,246,252,.70);
  --gelo-16:rgba(243,246,252,.16);

  /* módulo */
  --u:8px;
  --margem:clamp(24px, 6vw, 72px);
  --max:1200px;

  /* motion — 600-900ms, ease-out, sem bounce (brandbook p.26) */
  --ease:cubic-bezier(.16,1,.3,1);
  --dur:.8s;

  --logo-cod:var(--chumbo);
  --logo-up:var(--cobalto);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--gelo);
  color:var(--chumbo);
  font-family:"Rubik",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:18px;
  line-height:1.556;              /* body 18/28 */
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,p,dl,dd,ol{margin:0}
ol{padding:0;list-style:none}

.skip{
  position:absolute;left:-9999px;top:0;z-index:10;
  background:var(--chumbo);color:var(--gelo);padding:calc(var(--u)*2);
}
.skip:focus{left:0}

:focus-visible{outline:3px solid var(--cobalto);outline-offset:4px}

.container{
  width:100%;max-width:var(--max);
  margin-inline:auto;padding-inline:var(--margem);
}

/* ---------- escala tipográfica (brandbook p.16) ---------- */
.display{
  font-size:clamp(38px,6.4vw,64px);
  line-height:1.0625;             /* 64/68 */
  font-weight:700;
  letter-spacing:-.02em;
}
.h1{
  font-size:clamp(30px,4.8vw,48px);
  line-height:1.0834;             /* 48/52 */
  font-weight:700;
  letter-spacing:-.015em;
}
.h2{
  font-size:clamp(22px,2.9vw,32px);
  line-height:1.1875;             /* 32/38 */
  font-weight:500;
  letter-spacing:-.01em;
}
.body{font-size:18px;line-height:1.556;color:var(--chumbo-70)}
.lead{
  font-size:clamp(19px,2.1vw,24px);
  line-height:1.5;
  color:var(--chumbo-70);
}
.label{
  font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;line-height:1.2858;   /* 14/18 */
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--chumbo-70);
}
.em-up{font-style:normal;color:var(--cobalto);font-weight:500}

/* ---------- logo ---------- */
.logo{display:block;height:auto;overflow:visible}
.logo__cod{color:var(--logo-cod)}
.logo__up{color:var(--logo-up)}

/* ---------- HERO — prancha de construção ----------
   O manual da CODUP é um documento de engenharia (módulo 8u, espaçamento
   óptico, área de proteção). O hero assume isso: papel quadriculado, cota
   medindo o título e carimbo no rodapé. A copy faz o mesmo trabalho da arte. */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;align-items:center;
  padding-block:calc(var(--u)*7) calc(var(--u)*6);
  overflow:hidden;
}
.hero__grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right, var(--chumbo-08) 1px, transparent 1px),
    linear-gradient(to bottom, var(--chumbo-08) 1px, transparent 1px),
    linear-gradient(to right, rgba(37,42,52,.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37,42,52,.035) 1px, transparent 1px);
  background-size:96px 96px, 96px 96px, 16px 16px, 16px 16px;
  -webkit-mask-image:radial-gradient(120% 90% at 22% 45%, #000 25%, transparent 78%);
  mask-image:radial-gradient(120% 90% at 22% 45%, #000 25%, transparent 78%);
  animation:papel 1s var(--ease) both;
}
@keyframes papel{from{opacity:0}to{opacity:1}}

.hero__inner{position:relative;display:flex;flex-direction:column;width:100%}

.hero__topo{
  display:flex;align-items:center;gap:calc(var(--u)*3);
  flex-wrap:wrap;
  padding-bottom:calc(var(--u)*3);
  border-bottom:1px solid var(--chumbo-16);
  animation:aparece .7s var(--ease) both;
}
.logo--hero{width:120px}
.hero__eyebrow{color:var(--cobalto);margin:0}

.hero__prancha{
  padding-top:calc(var(--u)*6);
  display:flex;flex-direction:column;align-items:flex-start;
}
.hero__medida{width:fit-content;max-width:100%}
.hero__titulo{
  margin:0;
  font-size:clamp(46px,8.2vw,112px);
  line-height:.96;
  letter-spacing:-.035em;
  font-weight:700;
  color:var(--chumbo);
  animation:constroi .8s var(--ease) .25s both;
}
.cota{
  display:block;width:100%;height:26px;margin-top:calc(var(--u)*3);
  stroke:var(--cobalto);fill:var(--cobalto);
}
.cota__ext,.cota__linha{stroke-width:1.5;fill:none;vector-effect:non-scaling-stroke}
.cota__linha,.cota__ext{
  stroke-dasharray:1400;stroke-dashoffset:1400;
  animation:traca .9s var(--ease) .75s forwards;
}
.cota__seta{stroke:none;opacity:0;animation:aparece .4s var(--ease) 1.5s forwards}
.cota__valor{margin:calc(var(--u)) 0 0 0;color:var(--cobalto);text-transform:none;letter-spacing:.1em;opacity:0;animation:aparece .5s var(--ease) 1.55s forwards}
@keyframes traca{to{stroke-dashoffset:0}}

.hero__base{
  width:100%;margin-top:calc(var(--u)*5);
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:calc(var(--u)*5);flex-wrap:wrap;
}
.hero__lead{
  margin:0;
  font-size:clamp(18px,1.7vw,22px);
  line-height:1.55;
  color:var(--chumbo-70);
  max-width:40ch;
  animation:constroi .8s var(--ease) .45s both;
}

.subida{
  width:min(380px,100%);height:auto;flex:none;
  display:block;
}
.subida__linha{
  stroke:var(--cobalto);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:620;stroke-dashoffset:620;
  animation:traca 1s var(--ease) 1.05s forwards;
}
.subida__ponto{fill:var(--cobalto);opacity:0;animation:aparece .4s var(--ease) 2s forwards}

.carimbo{
  margin:calc(var(--u)*7) 0 0 0;
  display:grid;
  grid-template-columns:2fr 1.6fr 1fr 1fr;
  border:1px solid var(--chumbo-16);
  border-radius:4px;
  background:rgba(255,255,255,.55);
  animation:aparece .7s var(--ease) 1.7s both;
}
.carimbo__campo{
  padding:calc(var(--u)*2) calc(var(--u)*3);
  border-left:1px solid var(--chumbo-16);
  display:flex;flex-direction:column;gap:6px;
  min-width:0;
}
.carimbo__campo:first-child{border-left:0}
.carimbo dt{font-size:12px;letter-spacing:.16em}
.carimbo dd{
  margin:0;font-size:15px;font-weight:500;color:var(--chumbo);
  overflow-wrap:anywhere;
}

@keyframes constroi{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:none}
}
@keyframes aparece{from{opacity:0}to{opacity:1}}

@media (max-width:720px){
  .carimbo{grid-template-columns:1fr 1fr}
  .carimbo__campo:nth-child(3){border-left:0}
  .carimbo__campo:nth-child(n+3){border-top:1px solid var(--chumbo-16)}
  .subida{width:min(300px,100%)}
  .hero__prancha{padding-top:calc(var(--u)*4)}
  .hero__base{margin-top:calc(var(--u)*4)}
  .carimbo{margin-top:calc(var(--u)*5)}
  .cota{width:100%}
}


/* ---------- linguagem de prancha nas dobras ---------- */
/* cabeçalho de folha: o número é real — a página tem 5 folhas, contadas no carimbo */
.folha{
  display:flex;align-items:baseline;gap:calc(var(--u)*2);
  margin:0 0 calc(var(--u)*3) 0;padding-bottom:calc(var(--u)*2);
  border-bottom:1px solid var(--chumbo-16);
  font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cobalto);
}
.folha__t{color:var(--chumbo-70)}
.section--dark .folha{border-bottom-color:var(--gelo-16)}
.section--dark .folha__t{color:var(--gelo-70)}

/* desenho de construção do logotipo (manual, p.6 e p.7) */
.construcao{margin:calc(var(--u)*10) 0 0;padding:0}
.construcao svg{width:min(560px,100%);height:auto;overflow:visible;display:block}
.construcao__aux path{stroke:var(--chumbo-16);stroke-width:1;stroke-dasharray:6 6;vector-effect:non-scaling-stroke}
.construcao__traco{fill:none;stroke:var(--chumbo);stroke-width:34;stroke-linecap:butt;stroke-linejoin:round}
.construcao__up{fill:none;stroke:var(--cobalto);stroke-width:34;stroke-linecap:butt;stroke-linejoin:round}
.construcao__cota path{stroke:var(--cobalto);stroke-width:1.5;fill:none;vector-effect:non-scaling-stroke}
.construcao figcaption{margin-top:calc(var(--u)*2);color:var(--cobalto);text-transform:none;letter-spacing:.1em}

/* princípios como legenda de desenho — sem numeração falsa de sequência */
.legenda{margin:calc(var(--u)*10) 0 0;padding:0;list-style:none;display:grid;gap:0}
.legenda__linha{
  display:grid;grid-template-columns:56px minmax(0,22ch) minmax(0,1fr);
  gap:calc(var(--u)*3) calc(var(--u)*5);align-items:baseline;
  padding:calc(var(--u)*4) 0;border-top:1px solid var(--chumbo-16);
}
.legenda__linha:last-child{border-bottom:1px solid var(--chumbo-16)}
.legenda__sinal{width:40px;height:24px;fill:none;stroke:var(--chumbo-70);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;align-self:center}
.legenda__linha--up .legenda__sinal{stroke:var(--cobalto)}
.legenda .body{margin:0}

/* verso da prancha: blueprint (grade cobalto sobre chumbo) */
.blueprint{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(23,104,255,.30) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23,104,255,.30) 1px, transparent 1px),
    linear-gradient(to right, rgba(23,104,255,.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23,104,255,.13) 1px, transparent 1px);
  background-size:96px 96px, 96px 96px, 16px 16px, 16px 16px;
  -webkit-mask-image:radial-gradient(120% 95% at 78% 50%, #000 10%, transparent 72%);
  mask-image:radial-gradient(120% 95% at 78% 50%, #000 10%, transparent 72%);
  opacity:.55;
}

@media (max-width:720px){
  .legenda__linha{grid-template-columns:40px minmax(0,1fr)}
  .legenda__linha .body{grid-column:1/-1}
}

/* ---------- seções ---------- */
.section{padding-block:clamp(72px,11vw,144px)}
.section--alt{background:var(--branco)}
.section__head{max-width:60ch}
.section__head .label{margin-bottom:calc(var(--u)*3)}
.section__head .h1+.section__lead,
.section__lead{margin-top:calc(var(--u)*4)}

/* 01 / conceito */
.split{
  margin-top:calc(var(--u)*11);
  display:grid;gap:calc(var(--u)*8) calc(var(--u)*10);
  grid-template-columns:repeat(auto-fit,minmax(288px,1fr));
}
.split__item{border-top:2px solid var(--chumbo);padding-top:calc(var(--u)*4)}
.split__item--up{border-top-color:var(--cobalto)}
.split__key{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:14px;letter-spacing:.2em;font-weight:500;
  margin-bottom:calc(var(--u)*3);
}
.split__key--up{color:var(--cobalto)}
.split__item .body{margin-top:calc(var(--u)*3);max-width:44ch}


/* 03 / plataforma (dark) */
.section--dark{
  background:var(--chumbo);color:var(--gelo);
  position:relative;overflow:hidden;
}
.section--dark .label{color:var(--gelo-70)}
.section--dark .body{color:var(--gelo-70)}
.pattern{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:.07;                     /* padrão UP: 08-18% (brandbook p.19) */
  pointer-events:none;
  /* textura não compete com a mensagem: some atrás da coluna de texto */
  -webkit-mask-image:linear-gradient(100deg,transparent 0 20%,rgba(0,0,0,.5) 52%,#000 88%);
  mask-image:linear-gradient(100deg,transparent 0 20%,rgba(0,0,0,.5) 52%,#000 88%);
}
.section--dark .container{position:relative;z-index:1}
.platform{margin-top:calc(var(--u)*11);display:grid;gap:0}
.platform__row{
  display:grid;
  grid-template-columns:minmax(160px,1fr) minmax(0,3fr);
  gap:calc(var(--u)*3) calc(var(--u)*6);
  padding-block:calc(var(--u)*5);
  border-top:1px solid var(--gelo-16);
  align-items:baseline;
}
.platform__row:last-child{border-bottom:1px solid var(--gelo-16)}
.platform__row dt{padding-top:6px}
.platform__row dd{margin:0;max-width:34ch}

/* fecho */
.closing{padding-block:clamp(88px,13vw,168px)}
.closing__inner{display:flex;flex-direction:column;align-items:flex-start}
.folha--fecho{align-self:stretch;margin-bottom:calc(var(--u)*6)}
.sinal{width:240px;height:8px;color:var(--chumbo-16);margin-bottom:calc(var(--u)*6)}
.closing__line{max-width:18ch}
.closing__accent{color:var(--cobalto)}

/* rodapé */
.footer{
  background:var(--chumbo);color:var(--gelo);
  padding-block:calc(var(--u)*8);
}
.footer .logo__cod{color:var(--gelo)}     /* versão negativa autorizada (p.10) */
.footer .logo__up{color:var(--cobalto)}
.footer__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:calc(var(--u)*4);flex-wrap:wrap;
}
.logo--footer{width:132px}
.footer__meta{color:var(--gelo-70);margin:0}
.footer__sep{color:var(--gelo-16);padding-inline:4px}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(20px)}
[data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-delay:0ms!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
}

@media (max-width:640px){
  .platform__row{grid-template-columns:1fr}
}