/* ============================================================
   T&T CONSTRUÇÕES — Folha de estilos
   Estética: industrial / canteiro de obras
   Grafite profundo + amarelo segurança + listras de sinalização
   Tipografia: Anton (títulos) · Archivo (texto) · IBM Plex Mono (rótulos)
   ============================================================ */

:root {
  /* Paleta */
  --ink:        #14161a;   /* grafite quase preto */
  --ink-2:      #1c1f25;   /* superfície elevada escura */
  --ink-3:      #0d0f12;   /* rodapé / mais profundo */
  --concrete:   #eceae3;   /* cinza-concreto quente (seções claras) */
  --paper:      #f7f6f1;   /* papel claro */
  --amarelo:    #ffc400;   /* amarelo segurança */
  --amarelo-2:  #e6a800;   /* amarelo profundo (hover) */
  --wa:         #1fbe5f;   /* verde WhatsApp */
  --txt:        #23262c;
  --txt-suave:  #5c6068;
  --txt-claro:  #f2f1ec;
  --txt-claro-2:#a7abb4;
  --borda-escura: rgba(255,255,255,.09);

  /* Tipografia */
  --f-display: "Anton", Impact, "Arial Narrow", sans-serif;
  --f-texto:   "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-mono:    "IBM Plex Mono", "Courier New", monospace;

  /* Listras de sinalização */
  --hazard: repeating-linear-gradient(-45deg, var(--amarelo) 0 14px, var(--ink) 14px 28px);

  /* Sombra dura (brutalista) */
  --sombra-dura: 7px 7px 0 rgba(13, 15, 18, .92);
  --sombra-dura-am: 7px 7px 0 rgba(255, 196, 0, .35);

  --raio: 4px;
  --transicao: .25s cubic-bezier(.4, 0, .2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--f-texto);
  color: var(--txt);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* textura de ruído sutil por cima de tudo */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

::selection { background: var(--amarelo); color: var(--ink); }

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

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--amarelo); color: var(--ink);
  padding: .6rem 1rem; font-weight: 700; z-index: 10000;
}
.skip-link:focus { left: 0; }

/* ---------- Utilitários ---------- */
.container { width: min(1180px, 92%); margin-inline: auto; }

.section { padding: clamp(4.5rem, 8vw, 7rem) 0; scroll-margin-top: 90px; }
.section--escura { background: var(--ink); color: var(--txt-claro); }
.section--cinza  { background: var(--concrete); }

/* grid blueprint nas seções escuras */
.section--escura {
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 44px 44px;
}

h1, h2, h3 { line-height: 1.05; }

h2 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  letter-spacing: .015em;
  text-transform: uppercase;
  color: var(--ink);
}
.section--escura h2 { color: var(--txt-claro); }

h2 mark, h1 mark {
  background: var(--amarelo);
  color: var(--ink);
  padding: 0 .14em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* rótulo técnico estilo prancha de engenharia */
.rotulo {
  font-family: var(--f-mono);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--amarelo-2);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.section--escura .rotulo { color: var(--amarelo); }

.section__cabecalho {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section__sub { max-width: 340px; color: var(--txt-suave); font-size: .98rem; padding-bottom: .4rem; }
.section--escura .section__sub { color: var(--txt-claro-2); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  font-weight: 800;
  font-size: .92rem;
  letter-spacing: .06em;
  padding: .95rem 1.7rem;
  border-radius: var(--raio);
  border: 2px solid transparent;
  transition: transform var(--transicao), box-shadow var(--transicao), background var(--transicao), color var(--transicao);
  text-transform: uppercase;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; fill: currentColor; flex: none; }

.btn--xl { padding: 1.15rem 2.1rem; font-size: 1rem; }

.btn--amarelo {
  background: var(--amarelo);
  color: var(--ink);
  box-shadow: var(--sombra-dura);
}
.btn--amarelo:hover { transform: translate(-2px, -2px); box-shadow: 9px 9px 0 rgba(13,15,18,.92); background: #ffd23d; }
.btn--amarelo:active { transform: translate(3px, 3px); box-shadow: 0 0 0 rgba(0,0,0,0); }

.btn--escuro {
  background: var(--ink);
  color: #fff;
  box-shadow: var(--sombra-dura-am);
}
.btn--escuro:hover { transform: translate(-2px,-2px); box-shadow: 9px 9px 0 rgba(255,196,0,.45); }
.btn--escuro:active { transform: translate(3px,3px); box-shadow: none; }

.btn--preto {
  background: var(--ink);
  color: var(--amarelo);
  box-shadow: 7px 7px 0 rgba(13,15,18,.25);
}
.btn--preto:hover { transform: translate(-2px,-2px); box-shadow: 9px 9px 0 rgba(13,15,18,.3); }

.btn--vazado {
  border-color: rgba(255,255,255,.6);
  color: #fff;
}
.btn--vazado:hover { border-color: var(--amarelo); color: var(--amarelo); transform: translateY(-2px); }

.btn--wa {
  background: var(--wa);
  color: #fff;
  box-shadow: 7px 7px 0 rgba(13,15,18,.85);
}
.btn--wa:hover { transform: translate(-2px,-2px); box-shadow: 9px 9px 0 rgba(13,15,18,.85); background: #23d96d; }

/* ---------- Animações de entrada ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease var(--d, 0s), transform .7s ease var(--d, 0s);
}
.reveal.visivel { opacity: 1; transform: none; }

@keyframes heroSobe {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}
.anim-hero { opacity: 0; animation: heroSobe .85s cubic-bezier(.2,.7,.3,1) forwards; animation-delay: var(--d, 0s); }

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  background: var(--ink-3);
  color: var(--txt-claro-2);
  font-size: .82rem;
  border-bottom: 1px solid var(--borda-escura);
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: .45rem 0;
}
.topbar__regiao { display: flex; align-items: center; gap: .5rem; font-family: var(--f-mono); font-size: .78rem; }
.topbar__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--amarelo);
  box-shadow: 0 0 0 0 rgba(255,196,0,.6);
  animation: pulsa 2.2s infinite;
}
@keyframes pulsa {
  0% { box-shadow: 0 0 0 0 rgba(255,196,0,.55); }
  70% { box-shadow: 0 0 0 9px rgba(255,196,0,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,196,0,0); }
}
.topbar__contatos { display: flex; align-items: center; gap: 1.4rem; }
.topbar__contatos a, .topbar__horario { display: inline-flex; align-items: center; gap: .42rem; }
.topbar__contatos svg { width: 14px; height: 14px; fill: var(--amarelo); }
.topbar__contatos a:hover { color: var(--amarelo); }

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(20, 22, 26, .85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--borda-escura);
  transition: background var(--transicao), box-shadow var(--transicao);
}
.header.rolou { background: rgba(13, 15, 18, .97); box-shadow: 0 10px 30px rgba(0,0,0,.35); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: .8rem 0;
}

/* Logo */
.logo { display: inline-flex; align-items: center; gap: .65rem; }
.logo__marca { width: 42px; height: 42px; flex: none; }
.logo__capacete { fill: var(--amarelo); }
.logo__base { color: #fff; }
.logo__texto {
  font-family: var(--f-display);
  font-size: 1.55rem;
  letter-spacing: .04em;
  color: #fff;
  line-height: 1;
  display: flex;
  flex-direction: column;
}
.logo__texto b { font-weight: 400; }
.logo__texto em { font-style: normal; color: var(--amarelo); }
.logo__texto small {
  font-family: var(--f-mono);
  font-size: .56rem;
  font-weight: 600;
  letter-spacing: .42em;
  color: var(--txt-claro-2);
  margin-top: .18rem;
}

.nav { display: flex; align-items: center; gap: 1.7rem; }
.nav > a {
  color: var(--txt-claro-2);
  font-weight: 600;
  font-size: .9rem;
  position: relative;
  padding: .3rem 0;
}
.nav > a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 3px;
  background: var(--amarelo);
  transition: width var(--transicao);
}
.nav > a:hover { color: #fff; }
.nav > a:hover::after { width: 100%; }
.nav__mobile-extra { display: none; }

.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  z-index: 1001;
}
.header__burger span {
  width: 26px; height: 3px;
  background: var(--amarelo);
  transition: transform .3s, opacity .3s;
}
.header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: max(640px, calc(100svh - 110px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--txt-claro);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(11,12,15,.95) 4%, rgba(11,12,15,.82) 44%, rgba(11,12,15,.38) 100%),
    url("https://images.pexels.com/photos/21207200/pexels-photo-21207200/free-photo-of-casas-residencias-construcao-trabalhando.jpeg?auto=compress&cs=tinysrgb&w=1900") center / cover no-repeat;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(115deg, transparent 35%, #000 100%);
  -webkit-mask-image: linear-gradient(115deg, transparent 35%, #000 100%);
}
.hero__inner { position: relative; z-index: 2; padding: clamp(3.5rem, 7vw, 6rem) 0 9rem; }

.hero__kicker {
  font-family: var(--f-mono);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--amarelo);
  margin-bottom: 1.3rem;
}
.hero h1 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2.7rem, 6.4vw, 5.4rem);
  letter-spacing: .012em;
  line-height: 1.12;
  text-transform: uppercase;
  max-width: 18ch;
}
.hero__sub {
  margin-top: 1.5rem;
  max-width: 56ch;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: #cfd2d8;
}
.hero__sub strong { color: #fff; }

.hero__ctas { display: flex; flex-wrap: wrap; gap: 1.1rem; margin-top: 2.3rem; }

.hero__provas {
  display: flex; flex-wrap: wrap;
  gap: 1.6rem;
  margin-top: 2.2rem;
  font-size: .92rem;
  color: #d8dade;
}
.hero__provas li { display: inline-flex; align-items: center; gap: .5rem; }
.hero__provas svg { width: 17px; height: 17px; fill: var(--amarelo); flex: none; }

/* faixa de estatísticas no rodapé do hero */
.hero__stats {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 3;
  background: rgba(13,15,18,.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 3px solid var(--amarelo);
}
.hero__stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
}
.stat { display: flex; flex-direction: column; align-items: flex-start; gap: .1rem; }
.stat strong {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  color: var(--amarelo);
  letter-spacing: .02em;
}
.stat span {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--txt-claro-2);
}

/* ============================================================
   MARQUEE (faixa de sinalização)
   ============================================================ */
.marquee { background: var(--ink); padding: 1.6rem 0; overflow: hidden; }
.marquee__faixa {
  background: var(--amarelo);
  transform: rotate(-1.3deg) scale(1.03);
  border-block: 5px solid var(--ink);
  position: relative;
  overflow: hidden;
}
.marquee__faixa::before, .marquee__faixa::after {
  content: "";
  position: absolute; left: 0; right: 0; height: 9px;
  background: var(--hazard);
}
.marquee__faixa::before { top: 0; }
.marquee__faixa::after { bottom: 0; }
.marquee__trilho {
  display: flex;
  width: max-content;
  animation: desliza 26s linear infinite;
  padding: 1.15rem 0;
}
.marquee__trilho span {
  font-family: var(--f-display);
  font-size: clamp(1.15rem, 2.1vw, 1.7rem);
  letter-spacing: .06em;
  color: var(--ink);
  white-space: nowrap;
  padding-right: 1rem;
}
.marquee__trilho i { font-style: normal; color: rgba(20,22,26,.45); padding: 0 .6rem; }
@keyframes desliza { to { transform: translateX(-50%); } }

/* ============================================================
   SOBRE
   ============================================================ */
.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}

.sobre__fotos { position: relative; padding: 0 2.4rem 3.4rem 0; }
.sobre__foto-a {
  position: relative;
  aspect-ratio: 4 / 4.6;
  overflow: hidden;
  border-radius: var(--raio);
  box-shadow: 14px 14px 0 var(--concrete), 14px 14px 0 1px rgba(20,22,26,.08);
}
.sobre__foto-a img { width: 100%; height: 100%; object-fit: cover; }
.sobre__foto-b {
  position: absolute;
  right: 0; bottom: 0;
  width: 52%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 6px solid var(--paper);
  border-radius: var(--raio);
  box-shadow: var(--sombra-dura);
}
.sobre__foto-b img { width: 100%; height: 100%; object-fit: cover; }

.sobre__selo {
  position: absolute;
  top: -1.4rem; right: 1.2rem;
  background: var(--amarelo);
  color: var(--ink);
  padding: 1rem 1.1rem .9rem;
  text-align: center;
  transform: rotate(-4deg);
  box-shadow: var(--sombra-dura);
  border-radius: var(--raio);
}
.sobre__selo strong { font-family: var(--f-display); font-size: 2.3rem; font-weight: 400; line-height: 1; display: block; }
.sobre__selo strong span { color: rgba(20,22,26,.55); }
.sobre__selo small { font-family: var(--f-mono); font-size: .6rem; font-weight: 600; letter-spacing: .14em; line-height: 1.3; display: block; margin-top: .25rem; }

.sobre__texto h2 { margin-bottom: 1.3rem; }
.sobre__texto > p { margin-bottom: 1rem; color: var(--txt-suave); }
.sobre__texto > p strong { color: var(--ink); }

.sobre__valores {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.6rem;
  margin: 1.7rem 0 2.1rem;
}
.sobre__valores li { display: flex; gap: .7rem; align-items: flex-start; }
.sobre__valores svg {
  width: 22px; height: 22px; flex: none;
  fill: var(--ink);
  background: var(--amarelo);
  border-radius: 3px;
  padding: 3px;
  margin-top: .15rem;
}
.sobre__valores strong { display: block; font-size: .95rem; }
.sobre__valores span { font-size: .84rem; color: var(--txt-suave); line-height: 1.45; }

/* ============================================================
   SERVIÇOS
   ============================================================ */
.servicos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.6rem;
}

.servico {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--borda-escura);
  border-radius: var(--raio);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transicao), border-color var(--transicao), box-shadow var(--transicao);
}
.servico:hover {
  transform: translateY(-6px);
  border-color: rgba(255,196,0,.55);
  box-shadow: 0 18px 40px rgba(0,0,0,.45);
}

.servico__num {
  position: absolute;
  top: .6rem; right: .9rem;
  z-index: 3;
  font-family: var(--f-display);
  font-size: 2.6rem;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,255,255,.55);
  line-height: 1;
  pointer-events: none;
}
.servico__tag {
  position: absolute;
  top: 1rem; left: -2.3rem;
  z-index: 3;
  background: var(--amarelo);
  color: var(--ink);
  font-family: var(--f-mono);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .12em;
  padding: .35rem 2.6rem;
  transform: rotate(-38deg);
}
.servico--destaque { border-color: var(--amarelo); }

.servico figure { height: 200px; overflow: hidden; }
.servico figure img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
  filter: saturate(.92);
}
.servico:hover figure img { transform: scale(1.07); }

.servico__corpo { padding: 0 1.5rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.servico__icone {
  width: 56px; height: 56px;
  background: var(--amarelo);
  border-radius: var(--raio);
  display: grid; place-items: center;
  margin: -28px 0 1rem;
  box-shadow: 5px 5px 0 rgba(0,0,0,.5);
  position: relative; z-index: 2;
}
.servico__icone svg { width: 28px; height: 28px; fill: var(--ink); }

.servico h3 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 1.35rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: .55rem;
}
.servico p { font-size: .92rem; color: var(--txt-claro-2); margin-bottom: .9rem; }

.servico ul { margin-bottom: 1.2rem; display: grid; gap: .35rem; }
.servico ul li {
  font-size: .85rem;
  color: #cdd0d6;
  padding-left: 1.1rem;
  position: relative;
}
.servico ul li::before {
  content: "▸";
  position: absolute; left: 0;
  color: var(--amarelo);
}

.servico__cta {
  margin-top: auto;
  align-self: flex-start;
  font-weight: 800;
  font-size: .88rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--amarelo);
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .35rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transicao), gap var(--transicao);
}
.servico__cta:hover { border-bottom-color: var(--amarelo); gap: .8rem; }

/* ============================================================
   DIFERENCIAIS
   ============================================================ */
.difs__grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.difs__intro { position: sticky; top: 110px; }
.difs__intro h2 { margin-bottom: 1.2rem; }
.difs__intro p { color: var(--txt-suave); margin-bottom: 1.8rem; max-width: 38ch; }

.difs__lista { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.dif {
  background: #fff;
  border: 1px solid rgba(20,22,26,.08);
  border-radius: var(--raio);
  padding: 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
  transition: transform var(--transicao), box-shadow var(--transicao);
}
.dif:hover { transform: translateY(-5px); box-shadow: var(--sombra-dura); }
.dif > span {
  width: 52px; height: 52px;
  background: var(--ink);
  border-radius: var(--raio);
  display: grid; place-items: center;
  flex: none;
}
.dif > span svg { width: 26px; height: 26px; fill: var(--amarelo); }
.dif h3 { font-size: 1.02rem; font-weight: 800; margin-bottom: .3rem; }
.dif p { font-size: .88rem; color: var(--txt-suave); }

/* ============================================================
   PROCESSO
   ============================================================ */
.processo__passos {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
  counter-reset: passo;
}
.passo {
  background: var(--paper);
  border: 1px solid rgba(20,22,26,.09);
  border-radius: var(--raio);
  padding: 1.6rem 1.3rem 1.4rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transicao), box-shadow var(--transicao);
}
.passo::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 6px;
  background: var(--hazard);
  opacity: 0;
  transition: opacity var(--transicao);
}
.passo:hover { transform: translateY(-6px); box-shadow: var(--sombra-dura); }
.passo:hover::before { opacity: 1; }

.passo__num {
  font-family: var(--f-display);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--amarelo);
  -webkit-text-stroke: 1.5px var(--ink);
  display: block;
  margin-bottom: .8rem;
}
.passo h3 { font-size: 1rem; font-weight: 800; margin-bottom: .45rem; }
.passo p { font-size: .85rem; color: var(--txt-suave); }

/* ============================================================
   PORTFÓLIO / OBRAS
   ============================================================ */
.obras__filtros {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-bottom: 2.2rem;
}
.filtro {
  font-family: var(--f-mono);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--txt-claro-2);
  border: 1px solid var(--borda-escura);
  border-radius: 99px;
  padding: .55rem 1.2rem;
  transition: all var(--transicao);
}
.filtro:hover { border-color: var(--amarelo); color: var(--amarelo); }
.filtro.ativo { background: var(--amarelo); border-color: var(--amarelo); color: var(--ink); }

.obras__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
}
.obra {
  position: relative;
  aspect-ratio: 4 / 3.4;
  overflow: hidden;
  border-radius: var(--raio);
  cursor: zoom-in;
  border: 1px solid var(--borda-escura);
}
.obra img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .65s ease, filter .65s ease;
  filter: saturate(.9);
}
.obra:hover img { transform: scale(1.08); filter: saturate(1.05); }
.obra figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2.2rem .95rem .85rem;
  background: linear-gradient(transparent, rgba(10,11,14,.92));
  display: flex;
  flex-direction: column;
  gap: .1rem;
  transform: translateY(8px);
  opacity: .92;
  transition: transform var(--transicao), opacity var(--transicao);
}
.obra:hover figcaption { transform: none; opacity: 1; }
.obra figcaption strong { font-size: .92rem; color: #fff; }
.obra figcaption span { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .06em; color: var(--amarelo); text-transform: uppercase; }
.obra.escondida { display: none; }

/* ============================================================
   NÚMEROS (faixa amarela)
   ============================================================ */
.numeros {
  background: var(--amarelo);
  position: relative;
  padding: clamp(3rem, 6vw, 4.5rem) 0;
}
.numeros::before, .numeros::after {
  content: "";
  position: absolute; left: 0; right: 0;
  height: 12px;
  background: var(--hazard);
}
.numeros::before { top: 0; }
.numeros::after { bottom: 0; }

.numeros__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.numero strong {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  line-height: 1;
  color: var(--ink);
  display: block;
}
.numero span {
  font-family: var(--f-mono);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: rgba(20,22,26,.75);
  display: block;
  margin-top: .4rem;
}

/* ============================================================
   DEPOIMENTOS
   ============================================================ */
.depo__slider { overflow: hidden; }
.depo__trilho {
  display: flex;
  gap: 1.4rem;
  transition: transform .55s cubic-bezier(.4,0,.2,1);
}
.depo__card {
  flex: 0 0 calc((100% - 2.8rem) / 3);
  background: #fff;
  border: 1px solid rgba(20,22,26,.08);
  border-radius: var(--raio);
  padding: 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}
.depo__card::before {
  content: "“";
  position: absolute;
  top: -1.4rem; right: 1.1rem;
  font-family: var(--f-display);
  font-size: 6rem;
  line-height: 1;
  color: var(--amarelo);
  pointer-events: none;
}
.depo__estrelas { color: var(--amarelo-2); letter-spacing: .2em; font-size: 1rem; }
.depo__card p { font-size: .95rem; color: var(--txt-suave); flex: 1; }
.depo__card footer { display: flex; align-items: center; gap: .8rem; }
.depo__avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--amarelo);
  font-family: var(--f-display);
  font-size: 1.3rem;
  display: grid; place-items: center;
  flex: none;
}
.depo__card footer strong { display: block; font-size: .95rem; }
.depo__card footer small { font-family: var(--f-mono); font-size: .7rem; letter-spacing: .06em; color: var(--txt-suave); text-transform: uppercase; }

.depo__controles {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  margin-top: 2rem;
}
.depo__seta {
  width: 46px; height: 46px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 700;
  display: grid; place-items: center;
  transition: all var(--transicao);
}
.depo__seta:hover { background: var(--ink); color: var(--amarelo); }
.depo__pontos { display: flex; gap: .5rem; }
.depo__ponto {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: rgba(20,22,26,.2);
  transition: all var(--transicao);
}
.depo__ponto.ativo { background: var(--amarelo); outline: 2px solid var(--ink); transform: scale(1.15); }

/* ============================================================
   FAQ
   ============================================================ */
.faq__grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.faq__intro { position: sticky; top: 110px; }
.faq__intro h2 { margin-bottom: 1rem; }
.faq__intro p { color: var(--txt-suave); margin-bottom: 1.6rem; max-width: 36ch; }

.faq__lista { display: grid; gap: .9rem; }
.faq__lista details {
  background: var(--paper);
  border: 1px solid rgba(20,22,26,.1);
  border-left: 4px solid transparent;
  border-radius: var(--raio);
  transition: border-color var(--transicao), box-shadow var(--transicao);
}
.faq__lista details[open] {
  border-left-color: var(--amarelo);
  box-shadow: 0 10px 26px rgba(20,22,26,.08);
}
.faq__lista summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-weight: 700;
  font-size: .98rem;
  padding: 1.1rem 1.3rem;
  user-select: none;
}
.faq__lista summary::-webkit-details-marker { display: none; }
.faq__lista summary span {
  font-family: var(--f-display);
  font-size: 1.4rem;
  color: var(--amarelo-2);
  transition: transform .3s;
  flex: none;
  line-height: 1;
}
.faq__lista details[open] summary span { transform: rotate(45deg); }
.faq__lista details p {
  padding: 0 1.3rem 1.2rem;
  font-size: .92rem;
  color: var(--txt-suave);
}

/* ============================================================
   CTA FAIXA AMARELA
   ============================================================ */
.ctafaixa {
  background: var(--amarelo);
  position: relative;
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
  overflow: hidden;
}
.ctafaixa::before {
  content: "T&T";
  position: absolute;
  right: -1.5rem; bottom: -3.5rem;
  font-family: var(--f-display);
  font-size: clamp(8rem, 20vw, 16rem);
  line-height: 1;
  color: rgba(20,22,26,.07);
  pointer-events: none;
}
.ctafaixa__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  position: relative;
}
.ctafaixa h2 { color: var(--ink); font-size: clamp(2rem, 4.6vw, 3.6rem); }
.ctafaixa__acoes { display: flex; flex-direction: column; align-items: flex-start; gap: .8rem; }
.ctafaixa__acoes p { font-family: var(--f-mono); font-size: .8rem; font-weight: 600; letter-spacing: .05em; color: rgba(20,22,26,.7); }

/* ============================================================
   ORÇAMENTO / FORMULÁRIO
   ============================================================ */
.orcamento { scroll-margin-top: 70px; }
.orcamento__grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.orcamento__info h2 { margin-bottom: 1.2rem; }
.orcamento__info > p { color: var(--txt-claro-2); max-width: 44ch; }
.orcamento__info > p strong { color: var(--amarelo); }

.orcamento__canais { display: grid; gap: .9rem; margin: 2rem 0; }
.canal {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--ink-2);
  border: 1px solid var(--borda-escura);
  border-radius: var(--raio);
  padding: 1rem 1.2rem;
  transition: border-color var(--transicao), transform var(--transicao);
}
.canal:hover { border-color: var(--amarelo); transform: translateX(6px); }
.canal svg { width: 30px; height: 30px; fill: var(--amarelo); flex: none; }
.canal small { display: block; font-family: var(--f-mono); font-size: .68rem; letter-spacing: .08em; color: var(--txt-claro-2); text-transform: uppercase; }
.canal strong { font-size: 1rem; color: #fff; }
.canal--wa { border-color: rgba(31,190,95,.5); }
.canal--wa svg { fill: var(--wa); }
.canal--wa:hover { border-color: var(--wa); }

.orcamento__garantias { display: grid; gap: .5rem; font-size: .9rem; color: var(--txt-claro-2); }

/* Formulário (cartão claro sobre fundo escuro) */
.orcamento__form-area { position: relative; }
.form {
  background: var(--paper);
  color: var(--txt); /* o cartão é claro dentro de seção escura: força texto escuro */
  border-radius: var(--raio);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  box-shadow: 10px 10px 0 rgba(255,196,0,.35);
  border-top: 6px solid var(--amarelo);
}
.form h3 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 1.6rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.form__sub { font-size: .85rem; color: var(--txt-suave); margin: .3rem 0 1.5rem; }

.form__hp { position: absolute; left: -9999px; opacity: 0; height: 0; }

.form__linha { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form__campo { margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: .4rem; }
.form__campo label { font-weight: 700; font-size: .86rem; }

.form input[type="text"],
.form input[type="tel"],
.form input[type="email"],
.form select,
.form textarea {
  font: inherit;
  font-size: .95rem;
  color: var(--ink);
  background: #fff;
  border: 2px solid rgba(20,22,26,.18);
  border-radius: var(--raio);
  padding: .8rem .95rem;
  width: 100%;
  transition: border-color var(--transicao), box-shadow var(--transicao);
}
.form select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2314161a'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .7rem center; background-size: 20px; }
.form textarea { resize: vertical; min-height: 110px; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-color: var(--amarelo-2);
  box-shadow: 0 0 0 4px rgba(255,196,0,.25);
}
.form input.invalido, .form select.invalido, .form textarea.invalido { border-color: #d63b3b; }

.form__consent {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  font-size: .82rem;
  color: var(--txt-suave);
  margin: .4rem 0 1.4rem;
  cursor: pointer;
}
.form__consent input { width: 18px; height: 18px; margin-top: .15rem; accent-color: var(--amarelo-2); flex: none; }

.form__enviar { width: 100%; }
.form__enviar:disabled { opacity: .65; cursor: wait; transform: none; }
.form__nota { text-align: center; font-size: .78rem; color: var(--txt-suave); margin-top: .9rem; }

/* sucesso / erro */
.form__sucesso, .form__erro {
  background: var(--paper);
  color: var(--txt);
  border-radius: var(--raio);
  padding: clamp(2rem, 4vw, 3rem);
  text-align: center;
  box-shadow: 10px 10px 0 rgba(255,196,0,.35);
  border-top: 6px solid var(--wa);
}
.form__erro { border-top-color: #d63b3b; }
.form__sucesso-icone {
  width: 74px; height: 74px;
  margin: 0 auto 1.2rem;
  background: var(--wa);
  color: #fff;
  font-size: 2.4rem;
  font-weight: 800;
  border-radius: 50%;
  display: grid; place-items: center;
}
.form__sucesso h3, .form__erro h3 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 1.7rem;
  text-transform: uppercase;
  margin-bottom: .8rem;
}
.form__sucesso p, .form__erro p { color: var(--txt-suave); margin-bottom: 1rem; }
.form__erro-acoes { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: center; margin: 1.4rem 0 1rem; }
.form__erro .btn--vazado { border-color: var(--ink); color: var(--ink); }
.form__tentar { font-size: .85rem; color: var(--txt-suave); text-decoration: underline; }
.form__tentar:hover { color: var(--ink); }

/* ============================================================
   RODAPÉ
   ============================================================ */
.rodape { background: var(--ink-3); color: var(--txt-claro-2); }
.rodape__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding: clamp(3rem, 6vw, 4.5rem) 0 2.5rem;
}
.logo--rodape { margin-bottom: 1.1rem; }
.rodape__sobre p { font-size: .88rem; max-width: 34ch; }
.rodape__regiao { font-family: var(--f-mono); font-size: .76rem !important; color: var(--amarelo); margin-top: 1rem; letter-spacing: .05em; }

.rodape__col { display: flex; flex-direction: column; gap: .55rem; }
.rodape__col h4 {
  font-family: var(--f-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: .6rem;
  position: relative;
  padding-bottom: .55rem;
}
.rodape__col h4::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 28px; height: 3px;
  background: var(--amarelo);
}
.rodape__col a, .rodape__col span { font-size: .88rem; transition: color var(--transicao), transform var(--transicao); }
.rodape__col a:hover { color: var(--amarelo); }

.rodape__base { border-top: 1px solid var(--borda-escura); }
.rodape__base-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .6rem;
  padding: 1.2rem 0;
  font-size: .78rem;
  font-family: var(--f-mono);
}

/* ============================================================
   FLUTUANTES
   ============================================================ */
.flutuante {
  position: fixed;
  right: 1.4rem;
  z-index: 950;
  display: grid; place-items: center;
  border-radius: 50%;
  transition: transform var(--transicao), opacity var(--transicao), visibility var(--transicao);
}
.flutuante--wa {
  bottom: 1.4rem;
  width: 60px; height: 60px;
  background: var(--wa);
  box-shadow: 0 12px 28px rgba(31,190,95,.45);
  animation: flutua 3s ease-in-out infinite;
}
.flutuante--wa svg { width: 32px; height: 32px; fill: #fff; }
.flutuante--wa:hover { transform: scale(1.1); }
@keyframes flutua {
  0%, 100% { box-shadow: 0 12px 28px rgba(31,190,95,.45), 0 0 0 0 rgba(31,190,95,.45); }
  50% { box-shadow: 0 12px 28px rgba(31,190,95,.45), 0 0 0 14px rgba(31,190,95,0); }
}
.flutuante--wa-balao {
  position: absolute;
  right: calc(100% + 12px);
  background: var(--ink);
  color: #fff;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  padding: .5rem .85rem;
  border-radius: 6px;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity var(--transicao), transform var(--transicao);
}
.flutuante--wa:hover .flutuante--wa-balao { opacity: 1; transform: none; }

.flutuante--topo {
  bottom: 6.4rem;
  width: 46px; height: 46px;
  background: var(--ink);
  color: var(--amarelo);
  font-size: 1.2rem;
  font-weight: 800;
  border: 1px solid rgba(255,196,0,.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
}
.flutuante--topo.visivel { opacity: 1; visibility: visible; transform: none; }
.flutuante--topo:hover { background: var(--amarelo); color: var(--ink); }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed; inset: 0;
  z-index: 1100;
  background: rgba(8, 9, 11, .94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox[hidden] { display: none; }
.lightbox figure { max-width: min(1100px, 92vw); text-align: center; }
.lightbox img {
  max-width: 100%;
  max-height: 80vh;
  margin-inline: auto;
  border-radius: var(--raio);
  box-shadow: 0 30px 80px rgba(0,0,0,.6);
}
.lightbox figcaption {
  font-family: var(--f-mono);
  font-size: .85rem;
  letter-spacing: .06em;
  color: var(--amarelo);
  margin-top: 1rem;
}
.lightbox__fechar, .lightbox__seta {
  position: absolute;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  font-size: 1.25rem;
  display: grid; place-items: center;
  transition: all var(--transicao);
}
.lightbox__fechar:hover, .lightbox__seta:hover { background: var(--amarelo); color: var(--ink); border-color: var(--amarelo); }
.lightbox__fechar { top: 1.4rem; right: 1.4rem; }
.lightbox__seta--prev { left: 1.4rem; top: 50%; transform: translateY(-50%); }
.lightbox__seta--next { right: 1.4rem; top: 50%; transform: translateY(-50%); }

/* ============================================================
   RESPONSIVO
   ============================================================ */
@media (max-width: 1100px) {
  .obras__grid { grid-template-columns: repeat(3, 1fr); }
  .processo__passos { grid-template-columns: repeat(3, 1fr); }
  .depo__card { flex: 0 0 calc((100% - 1.4rem) / 2); }
}

@media (max-width: 920px) {
  .topbar__contatos span.topbar__horario, .topbar__contatos a[data-tt="email-href"] { display: none; }

  .header__cta { display: none; }
  .header__burger { display: flex; }

  /* backdrop-filter cria containing block e prenderia o menu fixed dentro do header */
  .header { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(13,15,18,.97); }

  .nav {
    position: fixed;
    inset: 0;
    background: var(--ink-3);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 6rem 9vw 3rem;
    gap: 1.5rem;
    transform: translateX(100%);
    visibility: hidden; /* evita foco por teclado quando fechado */
    transition: transform .38s cubic-bezier(.4,0,.2,1), visibility 0s linear .38s;
    z-index: 1000;
  }
  .nav.aberta { transform: none; visibility: visible; transition: transform .38s cubic-bezier(.4,0,.2,1); }
  .nav > a {
    font-family: var(--f-display);
    font-weight: 400;
    font-size: 2rem;
    letter-spacing: .03em;
    text-transform: uppercase;
    color: #fff;
  }
  .nav__mobile-extra { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 1.5rem; }
  .nav__wa { color: var(--txt-claro-2); font-size: .95rem; }
  body.menu-aberto { overflow: hidden; }

  .sobre__grid, .difs__grid, .faq__grid, .orcamento__grid { grid-template-columns: 1fr; }
  .difs__intro, .faq__intro { position: static; }
  .difs__lista { grid-template-columns: 1fr 1fr; }

  .section__cabecalho { flex-direction: column; align-items: flex-start; gap: 1rem; }

  .hero__stats { position: relative; margin-top: 3rem; }
  .hero__inner { padding-bottom: 0; }
  .hero { min-height: 0; padding-top: 1rem; }
  .hero__stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }

  .ctafaixa__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 680px) {
  .topbar__regiao { display: none; }
  .topbar__inner { justify-content: center; }

  .hero h1 br { display: none; } /* deixa o título fluir natural no celular */

  .obras__grid { grid-template-columns: repeat(2, 1fr); }
  .processo__passos { grid-template-columns: 1fr 1fr; }
  .difs__lista { grid-template-columns: 1fr; }
  .form__linha { grid-template-columns: 1fr; }
  .depo__card { flex: 0 0 100%; }
  .sobre__valores { grid-template-columns: 1fr; }

  .btn--xl { width: 100%; }
  .hero__ctas { flex-direction: column; align-items: stretch; }

  .servico figure { height: 175px; }
}

@media (max-width: 460px) {
  .obras__grid { grid-template-columns: 1fr; }
  .processo__passos { grid-template-columns: 1fr; }
  .stat strong { font-size: 1.45rem; }
  .logo__texto { font-size: 1.3rem; }
}

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