/* ===================================================================
   BE ARCH , Landing Page
   Paleta:  taupe #c1b0a3 · branco #fff · oliva #46472c · marrom #663719
   Fontes:  Marcellus (títulos, substituto de Valestra) · Cairo (texto)
   =================================================================== */

:root{
  --taupe:#c1b0a3;
  --taupe-soft:#e7ded7;
  --cream:#f5f1ec;
  --white:#ffffff;
  --olive:#46472c;
  --olive-deep:#373820;
  --brown:#663719;
  --brown-deep:#4f2a12;
  --ink:#2c2620;
  --muted:#6f665d;

  --font-display:'Marcellus', Georgia, 'Times New Roman', serif;
  --font-body:'Cairo', system-ui, -apple-system, sans-serif;

  --container:1200px;
  --radius:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  line-height:1.65;
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,48px)}

/* ---------- Tipografia ---------- */
h1,h2,h3{font-family:var(--font-display);font-weight:400;line-height:1.12;letter-spacing:.01em}
h2{font-size:clamp(1.9rem,4vw,3rem);color:var(--brown)}
h3{font-size:1.35rem}
.section--dark h2{color:var(--white)}

.eyebrow{
  font-size:.78rem;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--brown);margin-bottom:1rem;
}
.eyebrow--light{color:var(--taupe)}

.section{padding:clamp(64px,10vw,130px) 0}
.section--soft{background:var(--cream)}
.section--dark{background:var(--olive);color:var(--taupe-soft)}
.section--dark p{color:#cfc7ba}

.section-head{max-width:720px;margin:0 auto clamp(40px,6vw,68px);text-align:center}
.section-lead{margin-top:1.1rem;color:var(--muted);font-size:1.05rem}
.section--dark .section-lead{color:#cfc7ba}

/* ---------- Botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.95em 2em;border-radius:100px;
  font-family:var(--font-body);font-weight:600;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;
  background:var(--brown);color:var(--white);
  border:1px solid var(--brown);
  cursor:pointer;transition:.35s var(--ease);
}
.btn:hover{background:var(--brown-deep);border-color:var(--brown-deep);transform:translateY(-2px)}
.btn--dark{background:var(--olive);border-color:var(--olive)}
.btn--dark:hover{background:var(--olive-deep);border-color:var(--olive-deep)}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.6)}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--ghost-dark{background:transparent;color:var(--brown);border-color:var(--brown)}
.btn--ghost-dark:hover{background:var(--brown);color:#fff}
.btn--sm{padding:.65em 1.4em;font-size:.78rem}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;transition:.4s var(--ease);
}
.site-header.scrolled{background:rgba(245,241,236,.92);backdrop-filter:blur(10px);box-shadow:0 6px 30px rgba(44,38,32,.08);padding:10px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}

.brand{display:block;position:relative;height:46px;transition:.4s var(--ease)}
.scrolled .brand{height:38px}
.brand-logo{height:100%;width:auto;transition:opacity .4s var(--ease)}
.brand-logo--dark{position:absolute;inset:0;opacity:0}
.scrolled .brand-logo--light{opacity:0}
.scrolled .brand-logo--dark{opacity:1}

.nav{display:flex;align-items:center;gap:clamp(18px,2.4vw,34px)}
.nav>a{
  font-size:.86rem;font-weight:500;letter-spacing:.05em;color:#fff;
  position:relative;transition:.3s;
}
.nav>a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:currentColor;transition:.3s var(--ease)}
.nav>a:not(.btn):hover::after{width:100%}
.scrolled .nav>a{color:var(--ink)}
.nav-cta{color:#fff!important}
.scrolled .nav-cta{color:#fff!important}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;z-index:110}
.nav-toggle span{width:26px;height:2px;background:#fff;transition:.3s var(--ease)}
.scrolled .nav-toggle span{background:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);animation:heroZoom 14s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(44,38,32,.55) 0%,rgba(55,56,32,.35) 40%,rgba(79,42,18,.6) 100%)}
.hero-content{position:relative;z-index:2;max-width:820px;padding-top:80px;padding-bottom:80px}
.hero-title{font-size:clamp(3rem,9vw,6.4rem);color:#fff;line-height:1.02;margin-bottom:.4em}
.hero-title span{color:var(--taupe)}
.hero-sub{font-size:clamp(1.05rem,2vw,1.35rem);max-width:600px;color:#efe7dd;font-weight:300}
.hero-actions{margin-top:2.4rem;display:flex;flex-wrap:wrap;gap:14px}

.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);width:26px;height:44px;border:1.5px solid rgba(255,255,255,.6);border-radius:14px;z-index:2}
.hero-scroll span{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:4px;height:8px;border-radius:2px;background:#fff;animation:scrollDot 1.8s infinite}
@keyframes scrollDot{0%{opacity:0;top:8px}40%{opacity:1}80%{opacity:0;top:22px}100%{opacity:0}}

/* ---------- Sobre ---------- */
.sobre-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,6vw,80px);align-items:center}
.sobre-media{position:relative}
.sobre-media img{border-radius:var(--radius);box-shadow:0 30px 60px rgba(44,38,32,.18)}
.sobre-badge{
  position:absolute;bottom:-22px;left:-22px;background:var(--brown);color:#fff;
  font-family:var(--font-display);font-size:1.1rem;padding:16px 26px;border-radius:10px;
  box-shadow:0 14px 30px rgba(102,55,25,.3);
}
.sobre-text h2{margin-bottom:1.2rem}
.sobre-text p{color:var(--muted);margin-bottom:1.1rem}
.sobre-text strong{color:var(--ink);font-weight:600}
.sobre-stats{list-style:none;display:flex;gap:clamp(20px,4vw,44px);margin-top:2rem;flex-wrap:wrap}
.sobre-stats li{display:flex;flex-direction:column}
.sobre-stats strong{font-family:var(--font-display);font-size:1.9rem;color:var(--brown);font-weight:400}
.sobre-stats span{font-size:.82rem;letter-spacing:.05em;color:var(--muted);text-transform:uppercase}

/* ---------- Serviços ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,26px)}
.card{
  background:var(--white);border:1px solid #e6ddd4;border-radius:var(--radius);
  padding:38px 32px;transition:.4s var(--ease);position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--brown);transition:.45s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:0 24px 46px rgba(44,38,32,.12);border-color:transparent}
.card:hover::before{width:100%}
.card-num{font-family:var(--font-display);font-size:1rem;color:var(--taupe);letter-spacing:.1em}
.card h3{color:var(--brown);margin:.7rem 0 .8rem}
.card p{color:var(--muted);font-size:.98rem}

/* ---------- Diferenciais ---------- */
.section--dark{position:relative}
.dif-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,40px)}
.dif{padding-top:26px;border-top:1px solid rgba(193,176,163,.35)}
.dif h3{color:#fff;margin-bottom:.7rem;font-size:1.2rem}
.dif p{font-size:.96rem}

/* ---------- Atuação ---------- */
.atuacao-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(32px,6vw,80px);align-items:center}
.atuacao-text h2{margin-bottom:1.1rem}
.atuacao-text p{color:var(--muted)}
.atuacao-lists{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.uf h3{color:var(--brown);font-size:1.15rem;margin-bottom:1rem;padding-bottom:.6rem;border-bottom:1px solid var(--taupe)}
.cities{list-style:none;display:flex;flex-direction:column;gap:.55rem}
.cities li{position:relative;padding-left:22px;color:var(--ink);font-size:1rem}
.cities li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border:1px solid var(--brown);border-radius:50%}

/* ---------- Projetos ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.6vw,22px)}
.tile{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;display:block}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(44,38,32,.75) 100%);transition:.4s}
.tile:hover img{transform:scale(1.06)}
.tile-info{position:absolute;left:0;bottom:0;z-index:2;padding:26px 24px;color:#fff}
.tile-cat{display:block;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--taupe);margin-bottom:.35rem}
.tile-name{display:block;font-family:var(--font-display);font-size:1.35rem}
.projetos-cta{text-align:center;margin-top:clamp(36px,5vw,56px)}

/* ---------- Avaliações ---------- */
.google-rating{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:1rem;font-size:.95rem;color:var(--muted)}
.stars{color:#c8992e;letter-spacing:2px}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,26px)}
.review{background:var(--cream);border-radius:var(--radius);padding:34px 30px;border:1px solid #ece4db}
.review .stars{font-size:1.05rem}
.review p{margin:1rem 0 1.2rem;color:var(--ink);font-size:1.02rem;font-style:italic}
.review cite{color:var(--muted);font-style:normal;font-size:.9rem;font-weight:500}

/* ---------- Contato ---------- */
.section--dark.contato{background:var(--brown)}
.contato-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(36px,6vw,80px);align-items:center}
.contato-text h2{margin-bottom:1.1rem}
.contato-text p{margin-bottom:2rem;max-width:440px}
.contato-text .btn{background:#fff;color:var(--brown);border-color:#fff}
.contato-text .btn:hover{background:var(--taupe-soft);border-color:var(--taupe-soft)}
.contato-info ul{list-style:none;display:flex;flex-direction:column;gap:1.3rem}
.contato-info li{display:flex;flex-direction:column;gap:.2rem;padding-bottom:1.1rem;border-bottom:1px solid rgba(255,255,255,.2)}
.contato-info span{font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--taupe)}
.contato-info a,.contato-info p{color:#fff;font-size:1.1rem}
.contato-info a:hover{color:var(--taupe-soft)}

/* ---------- Footer ---------- */
.site-footer{background:var(--olive-deep);color:#cfc7ba;padding-top:56px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;padding-bottom:40px}
.footer-brand img{height:44px;margin-bottom:12px}
.footer-brand p{font-size:.85rem;letter-spacing:.05em}
.footer-nav{display:flex;gap:26px;flex-wrap:wrap}
.footer-nav a{font-size:.9rem;transition:.3s}
.footer-nav a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(193,176,163,.18);padding:22px 0}
.footer-bottom p{font-size:.82rem;color:#9a9184;text-align:center}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ===================================================================
   Responsivo
   =================================================================== */
@media (max-width:960px){
  .cards,.gallery,.reviews{grid-template-columns:repeat(2,1fr)}
  .dif-grid{grid-template-columns:repeat(2,1fr)}
  .sobre-grid,.atuacao-grid,.contato-grid{grid-template-columns:1fr}
  .sobre-media{max-width:520px;margin:0 auto}
}

@media (max-width:720px){
  .nav{
    position:fixed;inset:0 0 0 auto;width:min(80vw,320px);
    background:var(--olive);flex-direction:column;justify-content:center;align-items:flex-start;
    gap:24px;padding:60px 40px;transform:translateX(100%);transition:.4s var(--ease);
    box-shadow:-20px 0 60px rgba(0,0,0,.3);
  }
  .nav.open{transform:translateX(0)}
  .nav>a{color:#fff!important;font-size:1.1rem}
  .scrolled .nav>a{color:#fff!important}
  .nav-toggle{display:flex}
  .nav-toggle.open span{background:#fff!important}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

@media (max-width:520px){
  .cards,.gallery,.reviews,.dif-grid,.atuacao-lists{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .sobre-badge{left:0}
}

/* ===================================================================
   Subpáginas (portfólio e projeto) , header sólido
   =================================================================== */
.subpage .site-header{background:rgba(245,241,236,.95);backdrop-filter:blur(10px);box-shadow:0 6px 30px rgba(44,38,32,.08);padding:10px 0}
.subpage .brand{height:38px}
.subpage .brand-logo--light{opacity:0}
.subpage .brand-logo--dark{opacity:1}
.subpage .nav>a{color:var(--ink)}
.subpage .nav-toggle span{background:var(--ink)}

/* ---------- Portfólio: cabeçalho + filtros ---------- */
.portfolio-head{padding-top:clamp(120px,16vw,170px);text-align:center}
.portfolio-head h1{font-size:clamp(2.4rem,6vw,4rem);color:var(--brown);margin:.4rem 0 1rem}
.portfolio-head .section-lead{margin-left:auto;margin-right:auto;max-width:640px}
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:2rem}
.filter{
  font-family:var(--font-body);font-size:.82rem;font-weight:500;letter-spacing:.04em;
  padding:.55em 1.3em;border-radius:100px;cursor:pointer;
  background:transparent;color:var(--muted);border:1px solid #d8cec3;transition:.3s var(--ease);
}
.filter:hover{border-color:var(--brown);color:var(--brown)}
.filter.is-active{background:var(--brown);border-color:var(--brown);color:#fff}

/* ---------- Página do projeto ---------- */
.projeto-hero{padding:clamp(120px,16vw,170px) 0 clamp(30px,5vw,50px)}
.breadcrumb{display:flex;gap:10px;align-items:center;font-size:.85rem;color:var(--muted);margin-bottom:1.6rem}
.breadcrumb a:hover{color:var(--brown)}
.breadcrumb span{opacity:.5}
.breadcrumb em{font-style:normal;color:var(--brown)}
.projeto-hero h1{font-size:clamp(2.4rem,6vw,4.2rem);color:var(--brown);margin:.3rem 0 1.2rem}
.projeto-desc{font-size:clamp(1.05rem,2vw,1.25rem);max-width:680px;color:var(--muted)}
.projeto-meta{display:flex;flex-wrap:wrap;gap:clamp(28px,5vw,60px);margin-top:2.4rem;padding-top:2rem;border-top:1px solid #e6ddd4}
.projeto-meta div{display:flex;flex-direction:column;gap:.25rem}
.projeto-meta span{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.projeto-meta strong{font-family:var(--font-display);font-weight:400;font-size:1.3rem;color:var(--brown)}

.projeto-gallery{padding-bottom:clamp(50px,8vw,90px)}
.shots{column-count:2;column-gap:clamp(14px,2vw,22px)}
.shot{break-inside:avoid;margin:0 0 clamp(14px,2vw,22px);border-radius:var(--radius);overflow:hidden;cursor:zoom-in;position:relative}
.shot img{width:100%;display:block;transition:transform .7s var(--ease)}
.shot:hover img{transform:scale(1.04)}

.projeto-nav{padding:clamp(30px,5vw,50px) 0;border-top:1px solid #e6ddd4}
.projeto-nav .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.pn{display:flex;flex-direction:column;gap:.2rem}
.pn span{font-size:.78rem;letter-spacing:.05em;color:var(--muted)}
.pn strong{font-family:var(--font-display);font-weight:400;font-size:1.2rem;color:var(--brown)}
.pn--next{text-align:right}
.pn--all{font-family:var(--font-body);font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid #d8cec3;padding:.7em 1.4em;border-radius:100px;transition:.3s var(--ease)}
.pn--all:hover{border-color:var(--brown);color:var(--brown)}

.projeto-cta{text-align:center}
.projeto-cta h2{color:#fff;margin-bottom:.8rem}
.projeto-cta p{margin-bottom:2rem}

.projeto-404{padding:clamp(140px,20vw,200px) 0;text-align:center}
.projeto-404 h1{color:var(--brown);font-size:clamp(2rem,5vw,3rem);margin:.5rem 0 2rem}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(28,24,18,.94);display:none;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lb-img{max-width:90vw;max-height:86vh;border-radius:6px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close,.lb-prev,.lb-next{position:absolute;background:none;border:0;color:#fff;cursor:pointer;opacity:.8;transition:.2s;font-family:var(--font-body)}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{opacity:1}
.lb-close{top:22px;right:28px;font-size:2.4rem;line-height:1}
.lb-prev,.lb-next{top:50%;transform:translateY(-50%);font-size:3.4rem;padding:0 22px}
.lb-prev{left:8px}.lb-next{right:8px}

@media (max-width:720px){
  .shots{column-count:1}
  .projeto-nav .container{flex-wrap:wrap;gap:16px}
  .pn--all{order:3;width:100%;text-align:center}
  .lb-prev,.lb-next{font-size:2.4rem;padding:0 12px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}