/* ==========================================================================
   BASE Engenharia & Construções — folha única
   Direção de arte: industrial-precisa (grafite, concreto, amarelo-obra)
   TOKENS: trocar --accent recolore o site inteiro.
   ========================================================================== */
:root{
  /* cores */
  --grafite:#111315;      /* fundo escuro / header */
  --grafite-2:#191c1f;    /* superfície escura elevada */
  --grafite-3:#23272b;    /* hairline sobre escuro */
  --concreto:#e9e7e2;     /* fundo claro alternado */
  --branco:#f7f6f3;       /* fundo base */
  --tinta:#16181b;        /* texto principal */
  --tinta-2:#5b6167;      /* texto secundário claro */
  --tinta-inv:#f2f1ee;    /* texto sobre escuro */
  --tinta-inv-2:#9aa1a8;  /* texto secundário sobre escuro */
  --accent:#f5b301;       /* amarelo-obra */
  --accent-dk:#c98f00;    /* amarelo escurecido p/ texto sobre claro */
  --linha:#d5d2ca;        /* hairline sobre claro */
  --ok:#39b54a;
  /* tipografia */
  --f-tit:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;
  --f-txt:"Barlow","Segoe UI",system-ui,sans-serif;
  /* medidas */
  --wrap:1200px;
  --header-h:70px;
  --r:3px;                /* raio: quase reto, linguagem técnica */
  --sec-y:clamp(56px,7vw,104px);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  margin:0;background:var(--branco);color:var(--tinta);
  font:400 17px/1.62 var(--f-txt);
  overflow-x:hidden;
  background-image:linear-gradient(var(--linha) 1px,transparent 1px),linear-gradient(90deg,var(--linha) 1px,transparent 1px);
  background-size:64px 64px;background-position:-1px -1px;
}
img,svg{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.01em;line-height:1.04;margin:0;font-weight:700}
h1{font-size:clamp(2.5rem,5.4vw,4.35rem);font-weight:800;letter-spacing:-.005em}
h2{font-size:clamp(1.85rem,3.2vw,2.85rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem);font-weight:700}
h4{font-size:1.05rem}
p{margin:0 0 1em}
a{color:inherit}
b,strong{font-weight:600}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--accent);color:var(--tinta)}
::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-track{background:var(--grafite)}
::-webkit-scrollbar-thumb{background:var(--accent);border:3px solid var(--grafite)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:8px;top:-60px;z-index:99;background:var(--accent);color:var(--tinta);padding:10px 16px;font-weight:600;transition:top .18s}
.skip:focus{top:8px}

/* ---------- utilitários ---------- */
.wrap{width:min(100% - 40px,var(--wrap));margin-inline:auto}
.eyebrow{
  font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.18em;
  font-weight:700;font-size:.86rem;color:var(--accent-dk);margin:0 0 12px;
  display:flex;align-items:center;gap:10px;
}
.eyebrow::after{content:"";flex:1;height:1px;background:var(--linha);max-width:120px}
.lead{color:var(--tinta-2);font-size:1.06rem;max-width:62ch}
.sec{padding:var(--sec-y) 0;position:relative}
.sec--concreto{background:var(--concreto)}
.sec--dark{background:var(--grafite);color:var(--tinta-inv)}
.sec--dark .lead,.sec--dark .eyebrow{color:var(--tinta-inv-2)}
.sec--dark .eyebrow{color:var(--accent)}
.sec--dark .eyebrow::after{background:var(--grafite-3)}
.sec__head{max-width:66ch;margin-bottom:clamp(32px,4vw,56px)}
.sec__head h2{margin-bottom:16px}
.sec__head--row{max-width:none;display:flex;gap:24px;flex-wrap:wrap;align-items:flex-end;justify-content:space-between}
.sec__head--row>div{max-width:56ch}
.grid3{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid4{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(255px,1fr))}
.split{display:grid;gap:clamp(32px,4vw,64px);grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:start}
.split--rev .split__aside{order:2}
.split__aside h2{margin:0 0 16px}

/* faixa de sinalização */
.hazard{
  height:14px;
  background:repeating-linear-gradient(135deg,var(--accent) 0 18px,var(--tinta) 18px 36px);
}
.hazard--thin{height:8px;opacity:.9}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:var(--tinta);text-decoration:none;
  font-family:var(--f-tit);font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  font-size:1.02rem;padding:14px 26px;border:2px solid var(--accent);border-radius:var(--r);
  cursor:pointer;transition:background .16s,color .16s,transform .16s,border-color .16s;
}
.btn:hover{background:#ffc41f;border-color:#ffc41f;transform:translateY(-2px)}
.btn--sm{padding:9px 16px;font-size:.92rem}
.btn--ghost{background:transparent;color:var(--tinta);border-color:currentColor}
.btn--ghost:hover{background:var(--tinta);color:var(--branco);border-color:var(--tinta);transform:translateY(-2px)}
.btn--dark{color:var(--tinta-inv)}
.btn--dark:hover{background:var(--accent);color:var(--tinta);border-color:var(--accent)}
.btn--full{width:100%}

/* ---------- header ---------- */
.header{
  position:sticky;top:0;z-index:50;background:var(--grafite);color:var(--tinta-inv);
  border-bottom:1px solid var(--grafite-3);
}
.header__in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:inherit}
.logo__mark{width:38px;height:38px;flex:none;border-radius:2px}
.logo__txt{display:flex;flex-direction:column;line-height:1}
.logo__txt b{font-family:var(--f-tit);font-size:1.55rem;font-weight:800;letter-spacing:.06em}
.logo__txt small{font-size:.63rem;text-transform:uppercase;letter-spacing:.15em;color:var(--tinta-inv-2);margin-top:3px}
.nav{display:flex;align-items:center;gap:6px}
.nav a{
  text-decoration:none;font-family:var(--f-tit);text-transform:uppercase;font-weight:600;
  letter-spacing:.09em;font-size:1rem;padding:8px 11px;color:var(--tinta-inv);border-radius:var(--r);
  transition:color .16s,background .16s;
}
.nav a:not(.btn):hover{color:var(--accent)}
.nav a.btn{color:var(--tinta);margin-left:8px}
.menu-btn{
  display:none;width:44px;height:40px;background:transparent;border:1px solid var(--grafite-3);
  border-radius:var(--r);cursor:pointer;padding:10px 9px;flex-direction:column;justify-content:space-between;
}
.menu-btn span{display:block;height:2px;background:var(--accent);transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  background:var(--grafite);color:var(--tinta-inv);
  padding:clamp(48px,6vw,84px) 0 clamp(52px,6vw,90px);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(120% 90% at 20% 0%,#000 35%,transparent 78%);
  mask-image:radial-gradient(120% 90% at 20% 0%,#000 35%,transparent 78%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-8%;top:-20%;width:52%;height:150%;
  background:linear-gradient(200deg,rgba(245,179,1,.14),transparent 55%);
  transform:skewX(-14deg);pointer-events:none;
}
.hero__in{position:relative;z-index:1}
.hero__kicker{
  font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.2em;font-weight:700;
  font-size:.8rem;color:var(--accent);margin:0 0 18px;
}
.hero__title{
  font-size:clamp(2.5rem,7.4vw,5.5rem);line-height:.93;letter-spacing:.005em;
  text-transform:uppercase;max-width:none;margin:0 0 22px;text-wrap:balance;
}
.hero__title u{
  text-decoration:none;box-shadow:inset 0 -.14em 0 var(--accent);
}
.hero__sub{color:#c3c8cd;font-size:clamp(1rem,1.5vw,1.16rem);max-width:58ch;margin:0 0 26px}
.hero__act{margin:0}
.cota{display:block;width:min(100%,520px);height:26px;color:rgba(245,179,1,.55);margin:32px 0 6px}

/* faixa horizontal de obras na base da dobra */
.faixa{position:relative;z-index:1;padding:26px 0 4px}
.faixa__cap{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid var(--grafite-3);
}
.faixa__tit{font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.14em;font-weight:700;font-size:1rem}
.faixa__grid{display:grid;gap:0 clamp(20px,3vw,40px);grid-template-columns:repeat(3,minmax(0,1fr))}
.faixa__col{position:relative;padding:2px 0 4px}
.faixa__col+.faixa__col{padding-left:clamp(20px,3vw,40px);margin-left:calc(clamp(20px,3vw,40px) * -1)}
.faixa__col+.faixa__col::before{content:"";position:absolute;left:0;top:0;bottom:8px;width:1px;background:var(--grafite-3)}
.faixa__col>b{
  display:block;font-family:var(--f-tit);text-transform:uppercase;font-size:1.02rem;
  letter-spacing:.03em;font-weight:700;line-height:1.15;margin-bottom:8px;
}
.faixa__col .tag{display:inline-block;margin-bottom:10px}
.faixa__col .painel__foot{margin-top:12px}

/* linha fina de números no rodapé da dobra */
.rodape-num{
  list-style:none;margin:22px 0 0;padding:16px 0 0;border-top:1px solid var(--grafite-3);
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px clamp(22px,4vw,54px);
  font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.12em;
  font-size:.78rem;color:var(--tinta-inv-2);
}
.rodape-num b{color:var(--accent);font-weight:800;font-size:1rem;font-variant-numeric:tabular-nums;letter-spacing:.04em;margin-right:5px}

/* painel de obra (card do hero) */
.painel__meta{font-size:.76rem;color:var(--tinta-inv-2);display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(57,181,74,.18)}
.tag{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);border:1px solid rgba(245,179,1,.35);padding:2px 7px;border-radius:2px;white-space:nowrap}
.painel__foot{display:flex;justify-content:space-between;align-items:baseline;margin-top:10px;font-size:.8rem;color:var(--tinta-inv-2);text-transform:uppercase;letter-spacing:.08em}
.painel__foot b{color:var(--tinta-inv);font-family:var(--f-tit);font-size:1rem;font-variant-numeric:tabular-nums}

/* barras de progresso */
.prog{display:grid;grid-template-columns:88px 1fr 46px;align-items:center;gap:10px;margin:6px 0;font-size:.8rem}
.prog>span{color:var(--tinta-inv-2);text-transform:uppercase;letter-spacing:.06em;font-size:.74rem}
.prog em{font-style:normal;font-variant-numeric:tabular-nums;text-align:right;font-weight:600;font-family:var(--f-tit);font-size:.95rem}
.bar{height:8px;background:rgba(255,255,255,.09);border-radius:2px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:2px;transition:width 1.1s cubic-bezier(.2,.7,.3,1)}
.bar.on i{width:var(--p)}
.prog--lg{grid-template-columns:78px 1fr 48px;margin:12px 0 14px}
.prog--lg>span{color:var(--tinta-2)}
.prog--lg .bar{height:10px;background:rgba(0,0,0,.1)}
.prog--lg em{font-size:1.15rem}

/* ---------- obras em andamento ---------- */
.obra{background:var(--branco);border:1px solid var(--linha);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.obra__body{padding:20px 20px 22px}
.obra__tipo{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--tinta-2);margin:0 0 6px;font-weight:600}
.obra h3{margin-bottom:4px}
.iso{
  height:150px;background:var(--grafite);position:relative;overflow:hidden;
  border-bottom:4px solid var(--accent);
}
.iso::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;
}
.iso::after{content:"";position:absolute;background:var(--accent);opacity:.92}
/* torre: prisma vertical */
.iso[data-iso="torre"]::after{left:50%;bottom:0;width:74px;height:112px;transform:translateX(-50%);clip-path:polygon(0 16%,50% 0,100% 16%,100% 100%,0 100%)}
/* galpão: volume baixo com telhado de duas águas */
.iso[data-iso="galpao"]::after{left:50%;bottom:14px;width:160px;height:82px;transform:translateX(-50%);clip-path:polygon(0 42%,50% 0,100% 42%,100% 100%,0 100%)}
/* comercial: bloco escalonado */
.iso[data-iso="comercial"]::after{left:50%;bottom:0;width:132px;height:104px;transform:translateX(-50%);clip-path:polygon(0 46%,42% 46%,42% 8%,100% 8%,100% 100%,0 100%)}
.specs{margin:0;display:grid;gap:0;border-top:1px solid var(--linha)}
.specs>div{display:grid;grid-template-columns:112px 1fr;gap:10px;padding:9px 0;border-bottom:1px dashed var(--linha)}
.specs>div:last-child{border-bottom:0}
.specs dt{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--tinta-2);font-weight:600;padding-top:2px}
.specs dd{margin:0;font-size:.94rem;font-variant-numeric:tabular-nums}

/* ---------- portfólio ---------- */
.filtros{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  background:transparent;border:1px solid var(--linha);border-radius:var(--r);
  padding:8px 16px;cursor:pointer;font-family:var(--f-tit);text-transform:uppercase;
  letter-spacing:.09em;font-weight:600;font-size:.95rem;transition:.16s;
}
.chip:hover{border-color:var(--tinta)}
.chip[aria-pressed="true"]{background:var(--tinta);color:var(--branco);border-color:var(--tinta)}
.card{
  border:1px solid var(--linha);border-radius:var(--r);background:var(--branco);
  display:flex;flex-direction:column;overflow:hidden;transition:transform .18s,box-shadow .18s;
}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(17,19,21,.1)}
.card__top{
  position:relative;aspect-ratio:4/3;background:var(--grafite-2);
  display:flex;align-items:flex-end;padding:14px;overflow:hidden;
}
.card__top::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:20px 20px;
}
.card__top::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:var(--w,60%);height:var(--h,58%);background:var(--accent);opacity:.9;
  clip-path:var(--shape,polygon(0 12%,50% 0,100% 12%,100% 100%,0 100%));
}
.card__cat{
  position:relative;z-index:1;font-family:var(--f-tit);text-transform:uppercase;
  letter-spacing:.12em;font-size:.74rem;font-weight:700;background:var(--tinta);color:var(--accent);
  padding:4px 9px;border-radius:2px;
}
.card__body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card__body h3{font-size:1.12rem}
.card__loc{font-size:.82rem;color:var(--tinta-2);margin:0}
.card__meta{margin:auto 0 0;padding-top:12px;border-top:1px dashed var(--linha);display:flex;justify-content:space-between;gap:10px;font-size:.82rem;font-variant-numeric:tabular-nums;text-transform:uppercase;letter-spacing:.06em;color:var(--tinta-2)}
.card__meta b{color:var(--tinta);font-family:var(--f-tit);font-size:.98rem;letter-spacing:.04em}
.vazio{text-align:center;color:var(--tinta-2);padding:32px 0 0}

/* ---------- serviços ---------- */
.sec--dark .split__aside .lead{color:var(--tinta-inv-2)}
.servicos{list-style:none;margin:0;padding:0;display:grid;gap:1px;background:var(--grafite-3);border:1px solid var(--grafite-3);border-radius:var(--r);overflow:hidden}
.servicos li{background:var(--grafite);display:grid;grid-template-columns:56px 1fr;gap:16px;padding:22px 20px;transition:background .18s}
.servicos li:hover{background:var(--grafite-2)}
.servicos .num{font-family:var(--f-tit);font-size:1.5rem;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1;padding-top:2px}
.servicos h3{margin-bottom:7px}
.servicos p{margin:0 0 10px;color:var(--tinta-inv-2);font-size:.97rem}
.tags{list-style:none;margin:0;padding:0;display:flex;gap:7px;flex-wrap:wrap}
.tags li{display:block;background:transparent;padding:3px 9px;border:1px solid var(--grafite-3);border-radius:2px;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--tinta-inv-2)}

/* ---------- método ---------- */
.etapas{list-style:none;margin:0;padding:0;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.etapa{background:var(--branco);border:1px solid var(--linha);border-top:4px solid var(--accent);border-radius:var(--r);padding:22px 20px;position:relative;display:flex;flex-direction:column}
.etapa__n{
  font-family:var(--f-tit);font-weight:800;font-size:2.1rem;line-height:1;color:var(--linha);
  position:absolute;right:16px;top:12px;font-variant-numeric:tabular-nums;
}
.etapa h3{margin-bottom:8px;max-width:88%}
.etapa p{color:var(--tinta-2);font-size:.97rem;margin-bottom:14px}
.entrega{margin-top:auto;background:var(--concreto);border-left:3px solid var(--accent);padding:10px 12px;font-size:.88rem;line-height:1.45}
.sec--concreto .entrega{background:#dedbd4}
.entrega b{display:block;font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.13em;font-size:.72rem;color:var(--tinta-2);margin-bottom:2px}

/* ---------- números ---------- */
.numeros{background:var(--accent);color:var(--tinta);padding:clamp(34px,4vw,54px) 0;position:relative}
.numeros::before,.numeros::after{content:"";position:absolute;left:0;right:0;height:8px;background:repeating-linear-gradient(135deg,var(--tinta) 0 12px,transparent 12px 24px);opacity:.85}
.numeros::before{top:0}.numeros::after{bottom:0}
.numeros__grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));text-align:center}
.numeros__grid>div{padding:6px 8px;border-left:1px solid rgba(22,24,27,.22)}
.numeros__grid>div:first-child{border-left:0}
.numeros b{display:block;font-family:var(--f-tit);font-size:clamp(2.4rem,4.4vw,3.4rem);font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.numeros span{display:block;margin-top:6px;font-size:.82rem;text-transform:uppercase;letter-spacing:.11em;font-weight:600}

/* ---------- segurança / selos ---------- */
.check{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px}
.check li{position:relative;padding-left:30px;color:var(--tinta-2);font-size:.98rem}
.check li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:9px;
  border-left:3px solid var(--accent-dk);border-bottom:3px solid var(--accent-dk);transform:rotate(-45deg);
}
.selos{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.selo{border:1px solid var(--linha);border-radius:var(--r);padding:20px;background:var(--branco)}
.selo svg{width:62px;height:62px;color:var(--accent-dk);margin-bottom:14px}
.selo h3{margin-bottom:6px;font-size:1.08rem}
.selo p{margin:0;color:var(--tinta-2);font-size:.93rem}

/* ---------- equipe ---------- */
.eng{background:var(--grafite-2);border:1px solid var(--grafite-3);border-radius:var(--r);padding:24px 20px}
.eng__av{
  display:flex;align-items:center;justify-content:center;width:58px;height:58px;margin-bottom:16px;
  background:var(--accent);color:var(--tinta);font-family:var(--f-tit);font-weight:800;font-size:1.5rem;
  letter-spacing:.05em;border-radius:2px;
}
.eng h3{margin-bottom:4px}
.eng__cargo{color:var(--accent);font-size:.86rem;text-transform:uppercase;letter-spacing:.1em;font-weight:600;margin:0 0 4px}
.eng__crea{font-size:.82rem;color:var(--tinta-inv-2);margin:0 0 12px;font-variant-numeric:tabular-nums;padding-bottom:12px;border-bottom:1px dashed var(--grafite-3)}
.eng>p:last-child{margin:0;color:var(--tinta-inv-2);font-size:.95rem}

/* ---------- depoimentos ---------- */
.depo{margin:0;background:var(--branco);border:1px solid var(--linha);border-radius:var(--r);padding:24px 22px;display:flex;flex-direction:column;position:relative}
.depo::before{content:"”";position:absolute;right:16px;top:-6px;font-family:var(--f-tit);font-size:5rem;color:var(--accent);opacity:.5;line-height:1}
.depo p{font-size:1.03rem;margin:0 0 18px}
.depo footer{margin-top:auto;padding-top:14px;border-top:1px solid var(--linha)}
.depo footer b{display:block;font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.06em;font-size:1.08rem}
.depo footer span{font-size:.85rem;color:var(--tinta-2)}

/* ---------- faq ---------- */
.faq{display:grid;gap:1px;background:var(--linha);border:1px solid var(--linha);border-radius:var(--r);overflow:hidden}
.faq details{background:var(--branco)}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 52px 17px 20px;position:relative;
  font-family:var(--f-tit);text-transform:uppercase;font-weight:700;font-size:1.12rem;letter-spacing:.02em;line-height:1.25;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:20px;top:50%;width:12px;height:12px;
  border-right:2.5px solid var(--accent-dk);border-bottom:2.5px solid var(--accent-dk);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s;
}
.faq details[open] summary::after{transform:translateY(-25%) rotate(-135deg)}
.faq details[open] summary{background:var(--concreto)}
.faq summary:hover{background:var(--concreto)}
.faq p{margin:0;padding:0 20px 20px;color:var(--tinta-2);font-size:.98rem}

/* ---------- contato ---------- */
.placa{
  margin-top:26px;background:var(--grafite-2);border:1px solid var(--grafite-3);border-radius:var(--r);
  padding:0 20px 18px;position:relative;overflow:hidden;
}
.placa__h{
  margin:0 -20px 16px;padding:9px 20px;background:var(--accent);color:var(--tinta);
  font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.13em;font-weight:700;font-size:.86rem;
}
.placa address{font-style:normal;line-height:1.6;font-size:.98rem;color:var(--tinta-inv)}
.placa address b{font-family:var(--f-tit);text-transform:uppercase;font-size:1.15rem;letter-spacing:.04em}
.horario{margin:16px 0 0;display:grid;gap:0}
.horario>div{display:grid;grid-template-columns:100px 1fr;gap:10px;padding:8px 0;border-top:1px dashed var(--grafite-3)}
.horario dt{font-size:.76rem;text-transform:uppercase;letter-spacing:.1em;color:var(--tinta-inv-2);font-weight:600;padding-top:2px}
.horario dd{margin:0;font-size:.95rem;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}

.form{background:var(--grafite-2);border:1px solid var(--grafite-3);border-radius:var(--r);padding:24px 22px;display:grid;gap:14px}
.form__row{display:grid;gap:14px;grid-template-columns:1fr 1fr}
.form label{display:flex;flex-direction:column;gap:6px;font-family:var(--f-tit);text-transform:uppercase;letter-spacing:.1em;font-weight:600;font-size:.82rem;color:var(--tinta-inv-2)}
.form input,.form select,.form textarea{
  background:var(--grafite);border:1px solid var(--grafite-3);border-radius:var(--r);
  padding:12px 13px;color:var(--tinta-inv);font-family:var(--f-txt);font-size:1rem;
  text-transform:none;letter-spacing:normal;font-weight:400;width:100%;
}
.form textarea{resize:vertical;min-height:84px}
.form input::placeholder,.form textarea::placeholder{color:#6d747b}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(245,179,1,.2)}
.form select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--accent) 50%),linear-gradient(135deg,var(--accent) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px}
.form .erro-campo{border-color:#e2564a}
.form__erro{margin:0;color:#ff8b80;font-size:.9rem}
.form__nota{margin:0;font-size:.83rem;color:var(--tinta-inv-2);text-align:center}

/* ---------- rodapé ---------- */
.footer{background:var(--grafite);color:var(--tinta-inv);padding-top:clamp(40px,5vw,64px)}
.footer__grid{display:grid;gap:28px;grid-template-columns:1.6fr 1fr 1fr;padding-bottom:32px}
.footer__grid p{color:var(--tinta-inv-2);font-size:.94rem;margin:14px 0 0}
.footer h4{font-size:.86rem;letter-spacing:.14em;color:var(--accent);margin-bottom:12px}
.footer nav{display:flex;flex-direction:column;gap:8px}
.footer nav a{color:var(--tinta-inv-2);text-decoration:none;font-size:.94rem;width:fit-content}
.footer nav a:hover{color:var(--accent)}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 0 22px;font-size:.82rem;color:var(--tinta-inv-2)}
.footer__bottom a{color:var(--accent);text-decoration:none}
.footer__bottom a:hover{text-decoration:underline}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.vis{opacity:1;transform:none}

/* ---------- responsivo ---------- */
@media (max-width:1080px){
  .split,.split--rev{grid-template-columns:1fr}
  .split--rev .split__aside{order:0}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .menu-btn{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:var(--header-h);background:var(--grafite);
    border-bottom:1px solid var(--grafite-3);flex-direction:column;align-items:stretch;
    gap:0;padding:8px 20px 18px;display:none;box-shadow:0 20px 40px rgba(0,0,0,.4);
  }
  .nav.open{display:flex}
  .nav a{padding:13px 4px;border-bottom:1px solid var(--grafite-3);border-radius:0;font-size:1.06rem}
  .nav a.btn{margin:14px 0 0;border-radius:var(--r);justify-content:center;border-bottom-width:2px}
  .faixa__grid{grid-template-columns:1fr}
  .faixa__col+.faixa__col{padding-left:0;margin-left:0;margin-top:16px;padding-top:16px;border-top:1px dashed var(--grafite-3)}
  .faixa__col+.faixa__col::before{display:none}
  .numeros__grid{grid-template-columns:1fr 1fr}
  .numeros__grid>div{border-left:0}
  .footer__grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  body{font-size:16px}
  :root{--sec-y:clamp(38px,7vw,104px)}
  .sec__head{margin-bottom:26px}
  .sec__head h2{margin-bottom:12px}
  .iso{height:112px}
  .grid3{gap:16px}
  .etapas{gap:14px}
  .selos{gap:14px}
  .hero{padding:34px 0 40px}
  .obra__body{padding:16px 16px 18px}
  .form{padding:18px 16px;gap:12px}
  /* portfólio em 2 colunas: mantém a página curta no mobile */
  .grid4{grid-template-columns:1fr 1fr;gap:12px}
  .card__top{aspect-ratio:5/4;padding:9px}
  .card__cat{font-size:.62rem;letter-spacing:.08em;padding:3px 6px}
  .card__body{padding:12px 12px 14px;gap:4px}
  .card__body h3{font-size:.98rem}
  .card__loc{font-size:.76rem}
  .card__meta{padding-top:9px;font-size:.7rem;flex-direction:column;gap:2px}
  .card__meta b{font-size:.88rem}
  .faixa__col:nth-child(3){display:none}
  .faixa{padding-top:16px}
  .faixa__cap{margin-bottom:14px}
  .cota{display:none}
  .hero__act{margin-bottom:6px}
  .hero__title{margin-bottom:16px}
  .hero__sub{margin-bottom:20px}
  .rodape-num{margin-top:16px;padding-top:12px}
  .rodape-num{gap:6px 20px;font-size:.72rem}
  .etapa{padding:18px 16px}
  .servicos li{padding:18px 16px;grid-template-columns:40px 1fr;gap:12px}
  .selo{padding:16px}
  .selo svg{width:52px;height:52px;margin-bottom:10px}
  .eng{padding:18px 16px}
  .depo{padding:20px 18px}
  .wrap{width:min(100% - 28px,var(--wrap))}
  .form__row{grid-template-columns:1fr}
  .prog{grid-template-columns:72px 1fr 42px}
  .specs>div{grid-template-columns:1fr;gap:0}
  .sec__head--row{align-items:flex-start}
  .hero__cta .btn{flex:1 1 100%}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}