/* ============================================================
   Ápice Arquitetura e Engenharia
   Tokens derivados do Manual da Marca (Marca/manual-da-marca.pdf)
   ============================================================ */

:root{
  /* Paleta oficial da marca */
  --ink:#121212;
  --graphite:#272727;
  --gray:#adacad;
  --gray-light:#d5d5d6;
  --bronze:#ce9e70;
  --sand:#d0b093;
  --sand-pale:#e7d0ba;

  /* Neutros de papel */
  --paper:#fafafa;
  --paper-2:#f1f0ee;
  --bronze-ink:#8a6a44;   /* bronze legível sobre claro: AA 4,76:1 */
  --gray-ink:#5c5c5c;     /* texto secundário sobre claro: 6,41:1 */

  --rule:rgba(213,213,214,.14);
  --rule-dark:rgba(18,18,18,.12);

  --fs-hero:clamp(2.35rem,5.4vw,4.5rem);
  --fs-h2:clamp(1.75rem,3.4vw,2.7rem);
  --fs-h3:clamp(1.2rem,2vw,1.55rem);
  --fs-body:clamp(1rem,1.05vw,1.09rem);
  --fs-small:.875rem;
  --fs-eyebrow:.72rem;

  --shell:min(1240px,100% - 2.5rem);
  --ease:cubic-bezier(.16,1,.3,1);
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0}

/* auto, não smooth: com o motor de movimento carregado, o smooth do
   navegador anima por cima do lerp e o loop dessincroniza. As âncoras
   ficam com o JS, que já desconta o header (sistema-de-movimento §4). */
html{scroll-behavior:auto;scroll-padding-top:calc(var(--header-h) + 12px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  font-family:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:var(--fs-body);
  font-weight:300;
  line-height:1.65;
  color:var(--gray-light);
  background:var(--ink);
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit}

h1,h2,h3,h4{
  font-family:"Jost",system-ui,sans-serif;
  font-weight:300;
  line-height:1.08;
  letter-spacing:-.022em;
  margin:0;
  text-wrap:balance;
}
p{margin:0;text-wrap:pretty}

.shell{width:var(--shell);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.skip{
  position:absolute;left:1rem;top:-100%;z-index:200;
  background:var(--bronze);color:var(--ink);padding:.7rem 1.2rem;
  font-weight:600;letter-spacing:.04em;
}
.skip:focus{top:1rem}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--bronze);outline-offset:3px;
}

/* --- Eyebrow: filete bronze + rótulo, ecoando as barras do logotipo --- */
.eyebrow{
  display:flex;align-items:center;gap:.9rem;
  font-family:"Jost",sans-serif;font-size:var(--fs-eyebrow);font-weight:400;
  letter-spacing:.26em;text-transform:uppercase;color:var(--bronze);
  margin:0 0 1.4rem;
}
.eyebrow__rule{display:block;width:52px;height:1px;background:var(--bronze);flex:none}
.section--paper .eyebrow{color:var(--bronze-ink)}
.section--paper .eyebrow__rule{background:var(--bronze-ink)}

/* ============================ HEADER ============================ */
.header{
  position:fixed;inset:0 0 auto;z-index:100;
  height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(18,18,18,0);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
}
.header.is-stuck{
  background:rgba(18,18,18,.92);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--rule);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;width:var(--shell);margin-inline:auto}
.brand{display:block;flex:none}
.brand img{width:clamp(124px,17vw,168px)}

.nav{display:flex;align-items:center;gap:clamp(1rem,2.4vw,2.1rem)}
.nav a{
  font-family:"Jost",sans-serif;font-size:.82rem;font-weight:400;
  letter-spacing:.13em;text-transform:uppercase;color:var(--gray-light);
  text-decoration:none;position:relative;padding:.4rem 0;
  display:inline-flex;align-items:center;min-height:24px;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--bronze);
  transition:width .35s var(--ease);
}
.nav a:hover::after,.nav a:focus-visible::after{width:100%}
.nav .btn::after{display:none}
/* `.nav a` (0,1,1) venceria `.btn` (0,1,0) e apagaria o texto do botão sobre o bronze */
.nav a.btn{color:var(--ink)}
.nav a.btn:hover,.nav a.btn:focus-visible{color:var(--ink)}

.header .btn{padding:.62rem 1.25rem;font-size:.78rem}

.burger{
  display:none;width:44px;height:44px;padding:0;border:1px solid var(--rule);
  background:transparent;cursor:pointer;position:relative;
}
.burger span{
  position:absolute;left:12px;width:20px;height:1.5px;background:var(--gray-light);
  transition:transform .35s var(--ease),opacity .2s;
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:21.5px}
.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ============================ BOTÕES ============================ */
.btn{
  --bg:var(--bronze); --fg:var(--ink);
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.95rem 1.7rem;
  font-family:"Jost",sans-serif;font-size:.8rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;text-decoration:none;
  color:var(--fg);background:var(--bg);border:1px solid var(--bg);
  cursor:pointer;
  transition:background .5s var(--ease),color .5s var(--ease),border-color .5s var(--ease),transform .5s var(--ease);
}
.btn:hover{background:var(--sand);border-color:var(--sand);transform:translateY(-3px)}
.btn svg{width:17px;height:17px;flex:none;fill:currentColor}

.btn--ghost{--bg:transparent;--fg:var(--gray-light);border-color:var(--rule)}
.btn--ghost:hover{--fg:var(--ink);background:var(--gray-light);border-color:var(--gray-light)}
.section--paper .btn--ghost{--fg:var(--ink);border-color:var(--rule-dark)}
.section--paper .btn--ghost:hover{--fg:var(--paper);background:var(--ink);border-color:var(--ink)}

/* Enquanto um overlay está aberto (menu ou lightbox), o fundo não rola */
body.is-locked{overflow:hidden}

/* ============================ HERO ============================ */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;padding-block:calc(var(--header-h) + 3rem) clamp(2.5rem,6vh,4.5rem);overflow:hidden}
.hero__media{position:absolute;inset:0;z-index:0}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,
      rgba(18,18,18,.80) 0%,
      rgba(18,18,18,.48) 30%,
      rgba(18,18,18,.72) 58%,
      rgba(18,18,18,.93) 82%,
      rgba(18,18,18,.97) 100%),
    linear-gradient(90deg,
      rgba(18,18,18,.70) 0%,
      rgba(18,18,18,.52) 24%,
      rgba(18,18,18,.24) 50%,
      rgba(18,18,18,.05) 74%,
      rgba(18,18,18,0)   100%),
    /* véu focal no canto do texto: segura o contraste do bronze sobre
       os pontos de luz da foto sem apagar o resto da imagem */
    radial-gradient(130% 92% at 2% 96%,
      rgba(18,18,18,.86) 0%,
      rgba(18,18,18,.62) 38%,
      rgba(18,18,18,.24) 64%,
      rgba(18,18,18,0)   84%);
}
.hero__inner{position:relative;z-index:1;width:var(--shell);margin-inline:auto}
.hero h1{font-size:var(--fs-hero);max-width:21ch;color:var(--paper)}
.hero h1 em{font-style:normal;color:var(--bronze)}
.hero__sub{max-width:50ch;margin-top:2.1rem;color:var(--gray-light);font-size:clamp(1rem,1.25vw,1.14rem);line-height:1.7}
.hero__cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.9rem}

.hero__marks{
  display:flex;flex-wrap:wrap;align-items:center;gap:.6rem 1.6rem;
  margin-top:clamp(2.6rem,6vh,4rem);padding-top:1.5rem;border-top:1px solid var(--rule);
  font-size:var(--fs-small);color:var(--gray);
}
.hero__marks strong{
  font-family:"Jost",sans-serif;font-weight:400;font-size:var(--fs-eyebrow);
  letter-spacing:.2em;text-transform:uppercase;color:var(--bronze);
}
.hero__marks span{font-family:"Jost",sans-serif;letter-spacing:.06em;color:var(--gray-light)}

/* ============================ SEÇÕES ============================ */
.section{padding-block:clamp(5.5rem,13vh,10rem)}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper h2,.section--paper h3{color:var(--ink)}
.section--graphite{background:var(--graphite)}

.section__head{margin-bottom:clamp(3.2rem,6vw,5rem)}
.section__head h2{font-size:var(--fs-h2);max-width:19ch}
.section__head p{margin-top:1.4rem;color:var(--gray);max-width:58ch}
.section--paper .section__head p{color:var(--gray-ink)}

/* ---------- Serviços ---------- */
.services{display:grid;gap:0;border-top:1px solid var(--rule-dark);grid-template-columns:repeat(3,minmax(0,1fr))}
.service{
  background:var(--paper);padding:clamp(2rem,3vw,3rem) clamp(1.6rem,2.4vw,2.4rem);
  display:flex;flex-direction:column;gap:1rem;
  border-bottom:1px solid var(--rule-dark);
  transition:background .5s var(--ease);
}
/* filete só entre colunas: a primeira de cada linha não leva borda */
.service:not(:nth-child(3n+1)){border-left:1px solid var(--rule-dark)}
.service:hover{background:var(--paper-2)}
.service__n{font-family:"Jost",sans-serif;font-size:.78rem;font-weight:400;letter-spacing:.24em;color:var(--bronze-ink)}
.service h3{font-size:var(--fs-h3)}
.service p{color:var(--gray-ink);font-size:.98rem;max-width:52ch}

/* ---------- Processo ---------- */
.process{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1.6rem,2.6vw,2.6rem)}
.step{padding-top:1.4rem;border-top:2px solid var(--rule)}
.step--on{border-top-color:var(--bronze)}
.step__n{font-family:"Jost",sans-serif;font-size:.78rem;font-weight:500;letter-spacing:.18em;color:var(--bronze);display:block;margin-bottom:.7rem}
.step h3{font-size:1.05rem;margin-bottom:.5rem;color:var(--paper)}
.step p{font-size:.94rem;color:var(--gray);max-width:46ch}

/* ---------- Sobre ---------- */
.about{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.about__body h2{font-size:var(--fs-h2);margin-bottom:1.5rem}
.about__body p + p{margin-top:1.1rem}
.about__body p{color:var(--gray);max-width:64ch}
.about__media{position:relative}

/* ---------- Portfólio: grade 3/2/1 com lightbox ---------- */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(.9rem,1.6vw,1.4rem)}
.work{
  position:relative;display:grid;width:100%;padding:0;border:0;
  background:var(--graphite);cursor:zoom-in;overflow:hidden;text-align:left;
}
/* imagem e legenda ocupam a mesma célula: se a legenda crescer (texto a 200%),
   a célula cresce junto e nada é cortado */
.work > img,.work__cap{grid-area:1/1}
.work img{
  width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .7s var(--ease);
}
.work:hover img,.work:focus-visible img{transform:scale(1.045)}
.work__cap{
  align-self:end;z-index:1;padding:2.6rem 1.3rem 1.2rem;
  background:linear-gradient(180deg,
    rgba(18,18,18,0)   0%,
    rgba(18,18,18,.42) 26%,
    rgba(18,18,18,.78) 58%,
    rgba(18,18,18,.94) 100%);
}
.work__cap strong{display:block;font-family:"Jost",sans-serif;font-weight:400;font-size:1.02rem;color:var(--paper);letter-spacing:.01em}
.work__cap span{display:block;margin-top:.25rem;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--bronze)}

/* ---------- Lightbox ---------- */
.lb{
  border:0;padding:0;max-width:100%;max-height:100%;width:100%;height:100%;
  background:rgba(10,10,10,.96);color:var(--gray-light);
}
.lb::backdrop{background:rgba(10,10,10,.9)}
.lb[open]{display:flex;align-items:center;justify-content:center}
.lb__fig{margin:0;padding:clamp(3.5rem,7vw,4.5rem) clamp(3.5rem,8vw,5.5rem);max-width:min(1100px,100%);display:flex;flex-direction:column;gap:1rem}
.lb__fig img{max-height:74svh;width:auto;max-width:100%;margin-inline:auto;object-fit:contain}
.lb__cap{font-size:.92rem;color:var(--gray);text-align:center}
.lb__cap strong{display:block;font-family:"Jost",sans-serif;font-weight:400;font-size:1.1rem;color:var(--paper);margin-bottom:.2rem}
.lb__btn{
  position:absolute;top:50%;translate:0 -50%;
  width:48px;height:48px;display:grid;place-items:center;
  background:rgba(18,18,18,.7);border:1px solid var(--rule);color:var(--gray-light);cursor:pointer;
  transition:background .3s,color .3s,border-color .3s;
}
.lb__btn:hover{background:var(--bronze);color:var(--ink);border-color:var(--bronze)}
.lb__prev{left:clamp(.5rem,2vw,1.5rem)}
.lb__next{right:clamp(.5rem,2vw,1.5rem)}
.lb__close{position:absolute;top:clamp(.6rem,2vw,1.4rem);right:clamp(.6rem,2vw,1.4rem);translate:none}
.lb__btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6}

/* ---------- CTA final ---------- */
.cta{position:relative;overflow:hidden;background:var(--graphite)}
.cta__pattern{
  position:absolute;inset:0;opacity:.06;
  background:url("../img/pattern.webp") center/cover no-repeat;
  pointer-events:none;
}
.cta__inner{position:relative;z-index:1;text-align:center;max-width:60ch;margin-inline:auto}
.cta h2{font-size:var(--fs-h2);color:var(--paper)}
.cta p{margin-top:1.2rem;color:var(--gray)}
.cta .btn{margin-top:2.2rem}
.cta__note{margin-top:1.6rem;font-size:var(--fs-small);color:var(--gray)}

/* ---------- Footer ---------- */
.footer{background:var(--ink);border-top:1px solid var(--rule);padding-block:clamp(3rem,6vh,4.5rem) 2rem}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
.footer__brand img{width:170px;margin-bottom:1.2rem}
.footer__brand p{font-size:.94rem;color:var(--gray);max-width:32ch;text-wrap:pretty}
.footer__title{font-family:"Jost",sans-serif;font-size:var(--fs-eyebrow);font-weight:400;letter-spacing:.2em;text-transform:uppercase;color:var(--bronze);margin-bottom:1.1rem}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.footer a{
  display:inline-flex;align-items:center;min-height:24px;
  color:var(--gray-light);text-decoration:none;font-size:.94rem;transition:color .3s;
}
.footer a:hover{color:var(--bronze)}
.footer__bottom{
  margin-top:clamp(2.5rem,5vh,3.5rem);padding-top:1.5rem;border-top:1px solid var(--rule);
  display:flex;flex-wrap:wrap;gap:.7rem 1.5rem;justify-content:space-between;align-items:center;
  font-size:var(--fs-small);color:var(--gray);
}
.footer__bottom a{font-size:var(--fs-small);min-height:24px}

/* ---------- WhatsApp flutuante ---------- */
.wa{
  position:fixed;right:clamp(1rem,3vw,1.8rem);bottom:clamp(1rem,3vw,1.8rem);z-index:90;
  width:54px;height:54px;display:grid;place-items:center;
  background:var(--bronze);color:var(--ink);border-radius:50%;
  box-shadow:0 8px 26px rgba(0,0,0,.45);
  transition:transform .3s var(--ease),background .3s;
}
.wa:hover{transform:scale(1.07);background:var(--sand)}
.wa svg{width:27px;height:27px;fill:currentColor}

/* Botão flutuante do Merlin com a cor da identidade (aparece como aro; o ícone
   servido é opaco, então a marca só pinta a borda do botão) */
.merlin-button{background:var(--bronze)!important}

/* Movimento: ver motion.css */

/* ============================ RESPONSIVO ============================ */
@media (max-width:1024px){
  .services{grid-template-columns:repeat(2,minmax(0,1fr))}
  .service:not(:nth-child(3n+1)){border-left:0}
  .service:not(:nth-child(2n+1)){border-left:1px solid var(--rule-dark)}
  .process{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.6rem 2rem}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .about{grid-template-columns:1fr;gap:2.5rem}
  .footer__grid{grid-template-columns:1fr 1fr;gap:2rem}
  .footer__brand{grid-column:1/-1}
}

/* Tablet largo: a galeria de obras volta a 3 colunas, aproveitando a largura
   e encurtando a rolagem. Serviços e processo (texto) seguem em 2, mais
   confortáveis para leitura. */
@media (min-width:900px) and (max-width:1024px){
  .grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}

@media (max-width:860px){
  :root{--header-h:66px}
  .header .btn{display:none}
  .burger{display:block;z-index:120}
  .nav{
    position:fixed;inset:0 0 0 auto;width:min(320px,84vw);
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:1.4rem;padding:2rem clamp(1.5rem,6vw,2.5rem);
    background:var(--graphite);border-left:1px solid var(--rule);
    transform:translateX(100%);transition:transform .45s var(--ease);
    z-index:110;overflow-y:auto;
  }
  .nav.is-open{transform:translateX(0)}
  .nav a{font-size:1.05rem;letter-spacing:.1em}
  .nav .btn{display:inline-flex;margin-top:.6rem}
  .nav-scrim{
    position:fixed;inset:0;z-index:105;background:rgba(10,10,10,.6);
    opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s;
  }
  .nav-scrim.is-on{opacity:1;visibility:visible}
}

@media (max-width:560px){
  :root{--shell:min(1240px,100% - 2rem)}
  .services,.grid,.process{grid-template-columns:1fr}
  .service{border-left:0!important}
  .footer__grid{grid-template-columns:1fr}
  .hero{min-height:auto;padding-block:calc(var(--header-h) + 5rem) 3.5rem}
  .hero__cta .btn{width:100%;justify-content:center}
  .work{aspect-ratio:3/2}
  .lb__btn{width:42px;height:42px}
  .lb__fig{padding:4rem 1rem 3rem}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

/* Alvos de toque de 44px em dispositivos de toque (WCAG 2.5.5). Só em ponteiro
   grosso: no desktop com mouse, a densidade e o sublinhado do nav ficam intactos. */
@media (pointer:coarse){
  .nav a,.footer a,.footer__bottom a{min-height:44px}
}

/* ============================ BANNER DE COOKIES (LGPD) ============================ */
.cookiebar{
  position:fixed;left:clamp(1rem,3vw,1.8rem);bottom:clamp(1rem,3vw,1.8rem);z-index:95;
  width:min(560px,calc(100vw - 2rem));
  display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.5rem;
  padding:1.3rem 1.5rem;
  background:var(--graphite);border:1px solid var(--rule);
  box-shadow:0 12px 40px rgba(0,0,0,.5);
}
.cookiebar__txt{flex:1 1 260px;font-size:.88rem;line-height:1.55;color:var(--gray-light);text-wrap:pretty}
.cookiebar__txt a{color:var(--bronze);text-underline-offset:3px;padding-block:.3rem}
.cookiebar__actions{display:flex;gap:.6rem;flex:0 0 auto}
.cookiebar .btn{padding:.65rem 1.15rem;font-size:.74rem}
@media (max-width:560px){
  .cookiebar{left:1rem;right:1rem;width:auto;bottom:5.5rem;padding:1.1rem 1.2rem}
  .cookiebar__actions{width:100%}
  .cookiebar .btn{flex:1;justify-content:center}
}

/* ============================ PÁGINAS INTERNAS ============================ */
.page{padding-block:calc(var(--header-h) + clamp(3rem,8vh,5rem)) clamp(4rem,9vh,6rem)}
.page__inner{max-width:74ch}
.page h1{font-size:clamp(2.1rem,4.6vw,3.4rem);margin-bottom:1rem;color:var(--paper)}
.page__meta{font-size:var(--fs-small);color:var(--gray);margin-bottom:2.8rem}
.page h2{font-size:clamp(1.3rem,2.2vw,1.7rem);margin:2.6rem 0 .9rem;color:var(--paper)}
.page h3{font-size:1.08rem;margin:1.8rem 0 .6rem;color:var(--sand-pale)}
.page p,.page li{color:var(--gray);max-width:70ch}
.page p + p{margin-top:1rem}
.page ul,.page ol{padding-left:1.2rem;margin:1rem 0;display:grid;gap:.55rem}
.page a{color:var(--bronze);text-underline-offset:3px}
.page strong{color:var(--gray-light);font-weight:500}

/* ---------- Formulário (fornecedores / trabalhe conosco) ---------- */
.form{display:grid;gap:1.3rem;max-width:56ch;margin-top:2.4rem}
.field{display:grid;gap:.5rem}
.field label{
  font-family:"Jost",sans-serif;font-size:var(--fs-eyebrow);font-weight:400;
  letter-spacing:.16em;text-transform:uppercase;color:var(--bronze);
}
.field input,.field select,.field textarea{
  font:inherit;font-size:.98rem;color:var(--gray-light);
  background:var(--graphite);border:1px solid var(--rule);
  padding:.85rem 1rem;width:100%;
  transition:border-color .3s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--bronze);outline:none}
.field textarea{min-height:130px;resize:vertical}
.field__hint{font-size:.8rem;color:var(--gray)}
.form__msg{padding:1rem 1.2rem;border-left:2px solid var(--bronze);background:var(--graphite);font-size:.94rem}
.form__msg[hidden]{display:none}
.form__consent{display:flex;gap:.7rem;align-items:flex-start;font-size:.88rem;color:var(--gray)}
.form__consent input{width:auto;margin-top:.25rem;accent-color:var(--bronze)}