/* ============================================================
   COPEFE ESTACAS · Desde 1957
   Paleta: preto grafite + off-white + amarelo COPEFE
   ============================================================ */
:root {
  --ink: #101010;
  --ink-soft: #2a2a2a;
  --paper: #f7f5f0;
  --paper-2: #efece4;
  --yellow: #f2d500;
  --yellow-deep: #d9be00;
  --gray: #77726a;
  --line: rgba(16, 16, 16, 0.12);
  --line-light: rgba(247, 245, 240, 0.15);
  --font-display: "Archivo Expanded", "Archivo", sans-serif;
  --font-body: "Archivo", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --header-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

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

/* ---------- Progress bar ---------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: var(--yellow);
  z-index: 1001;
  transition: width 80ms linear;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1002;
  transition: background 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
}
/* Com o menu aberto o cabeçalho fica por cima, sem fundo próprio */
.header.menu-aberto,
.header.menu-aberto.scrolled {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}
.header.scrolled {
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}
.header.hidden { transform: translateY(-100%); }

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  justify-self: center;
}
.brand-logo { height: 52px; width: auto; }
.brand-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  line-height: 1.05;
  display: flex;
  flex-direction: column;
}
.brand-sub {
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.42em;
  color: var(--gray);
}

/* ---------- Botão hambúrguer ---------- */
.nav-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 4px;
  justify-self: start;
  color: var(--ink);
}
.nav-toggle-icone {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
}
.nav-toggle-icone span {
  width: 100%; height: 2px;
  background: currentColor;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.25s ease, width 0.35s ease;
}
.nav-toggle:hover .nav-toggle-icone span:nth-child(2) { width: 70%; }
.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav-toggle.aberto .nav-toggle-icone span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.aberto .nav-toggle-icone span:nth-child(2) { opacity: 0; }
.nav-toggle.aberto .nav-toggle-icone span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-toggle.aberto:hover .nav-toggle-icone span:nth-child(2) { width: 100%; }

/* ---------- Contato no cabeçalho ---------- */
.header-contato {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-self: end;
}
.header-fone {
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.header-fone-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}
.header-fone-num {
  font-weight: 700;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}
.header-fone:hover .header-fone-num { color: var(--yellow-deep); }

.header-zap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  padding: 12px 20px;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.header-zap svg { width: 18px; height: 18px; flex-shrink: 0; }
.header-zap:hover { background: var(--yellow); color: var(--ink); transform: translateY(-2px); }

/* ---------- Menu em tela cheia ---------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: var(--paper);
  display: flex;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s cubic-bezier(0.76, 0, 0.24, 1),
              opacity 0.4s ease,
              visibility 0s linear 0.7s;
}
.menu.aberto {
  opacity: 1;
  visibility: visible;
  clip-path: inset(0 0 0 0);
  transition: clip-path 0.7s cubic-bezier(0.76, 0, 0.24, 1),
              opacity 0.3s ease,
              visibility 0s;
}
.menu-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 70px;
  align-items: center;
  padding-top: var(--header-h);
}

.menu-nav { display: flex; flex-direction: column; }
.menu-nav a {
  display: flex;
  align-items: baseline;
  gap: 22px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.18;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  padding: 6px 0;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), color 0.25s ease;
}
.menu.aberto .menu-nav a { opacity: 1; transform: translateY(0); }
.menu.aberto .menu-nav a:nth-child(1) { transition-delay: 0.22s; }
.menu.aberto .menu-nav a:nth-child(2) { transition-delay: 0.29s; }
.menu.aberto .menu-nav a:nth-child(3) { transition-delay: 0.36s; }
.menu.aberto .menu-nav a:nth-child(4) { transition-delay: 0.43s; }
.menu.aberto .menu-nav a:nth-child(5) { transition-delay: 0.50s; }
.menu.aberto .menu-nav a:nth-child(6) { transition-delay: 0.57s; }
.menu-nav a:hover { color: var(--yellow-deep); }
.menu-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--gray);
  flex-shrink: 0;
}

.menu-lado {
  border-left: 1px solid var(--line);
  padding-left: 50px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.5s, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.5s;
}
.menu.aberto .menu-lado { opacity: 1; transform: translateY(0); }
.menu-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 30px;
  max-width: 300px;
}
.menu-contatos { display: flex; flex-direction: column; gap: 8px; margin-bottom: 26px; }
.menu-contatos a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.05rem;
  width: fit-content;
  transition: color 0.2s ease;
}
.menu-contatos a:hover { color: var(--yellow-deep); }
.menu-endereco { font-size: 0.9rem; color: var(--gray); line-height: 1.6; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h);
}
.hero-bg {
  position: absolute;
  inset: -12% 0;
  background:
    radial-gradient(ellipse 60% 45% at 78% 30%, rgba(242, 213, 0, 0.16), transparent 65%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  will-change: transform;
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: 25% 100%;
  opacity: 0.5;
  mask-image: linear-gradient(180deg, transparent, #000 30%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%);
}
.hero-content { position: relative; z-index: 2; }

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.tick {
  display: inline-block;
  width: 34px; height: 2px;
  background: var(--yellow);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  text-transform: uppercase;
}
.hero-title em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  position: relative;
}
.hero-title em::after {
  content: "";
  position: absolute;
  left: -2%; bottom: 6%;
  width: 104%; height: 22%;
  background: var(--yellow);
  z-index: -1;
}

.line-mask { display: block; overflow: hidden; }
.line { display: block; }

.hero-lead {
  max-width: 560px;
  margin-top: 30px;
  font-size: 1.08rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  padding: 16px 32px;
  border: 2px solid var(--ink);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.btn:hover { transform: translateY(-3px); }
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(242, 213, 0, 0.35);
}
.btn-ghost { color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-lg { padding: 20px 44px; font-size: 1rem; }

.hero-footer {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  border-top: 1px solid var(--line);
  padding: 18px 0;
  overflow: hidden;
}
.hero-marquee { overflow: hidden; white-space: nowrap; }
.marquee-track {
  display: inline-flex;
  animation: marquee 30s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--gray);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.scroll-hint {
  position: absolute;
  right: 4vw;
  bottom: 90px;
  width: 28px; height: 48px;
  border: 2px solid var(--ink);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  z-index: 3;
}
.scroll-hint span {
  width: 4px; height: 10px;
  background: var(--yellow);
  border-radius: 4px;
  margin-top: 8px;
  animation: hint 1.8s ease-in-out infinite;
}
@keyframes hint {
  0%, 100% { transform: translateY(0); opacity: 1; }
  55% { transform: translateY(16px); opacity: 0.2; }
}

/* ---------- Seções ---------- */
.section { padding: 120px 0; position: relative; }

.section-head { margin-bottom: 64px; }
.section-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--gray);
  display: inline-block;
  border: 1px solid var(--line);
  padding: 6px 14px;
  margin-bottom: 22px;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.4vw, 3.2rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.section-sub {
  margin-top: 18px;
  max-width: 620px;
  color: var(--gray);
  font-size: 1.02rem;
}

/* ---------- Sobre ---------- */
.sobre { background: var(--paper); }
.sobre-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
}
.sobre-destaque {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 24px;
  border-left: 4px solid var(--yellow);
  padding-left: 24px;
}
.sobre-texto p:not(.sobre-destaque) {
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.sobre-ano { text-align: center; will-change: transform; }
.ano-gigante {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(6rem, 16vw, 13rem);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 2px rgba(16, 16, 16, 0.22);
  user-select: none;
}

/* ---------- Fundador ---------- */
.fundador {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 80px;
  padding: 40px 44px;
  background: var(--paper-2);
  border: 1px solid var(--line);
}
.fundador-retrato {
  position: relative;
  flex-shrink: 0;
  width: 148px;
  height: 148px;
}
/* quadrado amarelo deslocado, no lugar do que vinha embutido na imagem */
.fundador-retrato::before {
  content: "";
  position: absolute;
  left: -14px;
  bottom: -14px;
  width: 100%;
  height: 100%;
  background: var(--yellow);
}
.fundador-retrato img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(1) contrast(1.05);
  transition: filter 0.4s ease;
}
.fundador:hover .fundador-retrato img { filter: grayscale(0) contrast(1); }

.fundador-rotulo {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 8px;
}
.fundador-nome {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 12px;
}
.fundador-texto p { color: var(--ink-soft); max-width: 62ch; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 90px;
  border-top: 1px solid var(--line);
}
.stat {
  padding: 36px 24px 0;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: none; padding-left: 0; }
.stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1;
  display: block;
}
.stat-label {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ---------- Serviços (fundo escuro) ---------- */
.servicos { background: var(--ink); color: var(--paper); }
.servicos .section-title { color: var(--paper); }
.section-num-dark { border-color: var(--line-light); color: rgba(247,245,240,0.55); }

.servicos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.servico-card {
  border: 1px solid var(--line-light);
  padding: 44px 40px;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
  background: rgba(247,245,240,0.02);
}
.servico-card:hover {
  border-color: var(--yellow);
  transform: translateY(-6px);
  background: rgba(242, 213, 0, 0.04);
}
.servico-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--yellow);
  letter-spacing: 0.2em;
}
.servico-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin: 16px 0 14px;
}
.servico-card p { color: rgba(247,245,240,0.72); margin-bottom: 22px; }
.servico-card ul { list-style: none; }
.servico-card li {
  padding: 10px 0 10px 26px;
  border-top: 1px solid var(--line-light);
  position: relative;
  font-size: 0.92rem;
  color: rgba(247,245,240,0.85);
}
.servico-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 12px; height: 2px;
  background: var(--yellow);
}

/* ---------- Vídeo de execução ---------- */
.video { margin-top: 60px; }
.video-capa {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line-light);
  background: none;
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  line-height: 0;
}
.video-capa img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), filter 0.4s ease;
  filter: saturate(0.85) contrast(1.03);
}
.video-capa:hover img { transform: scale(1.03); filter: saturate(1) contrast(1); }
.video-capa::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,16,16,0.05) 0%, rgba(16,16,16,0.45) 100%);
  pointer-events: none;
}

.video-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 84px; height: 84px;
  background: var(--yellow);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.video-play svg { width: 34px; height: 34px; margin-left: 3px; }
.video-capa:hover .video-play {
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 14px 40px rgba(242, 213, 0, 0.4);
}

.video-duracao {
  position: absolute;
  left: 22px; bottom: 20px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  line-height: 1;
}

/* iframe que substitui a capa depois do clique */
.video-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-light);
  display: block;
}

.video-legenda {
  margin-top: 18px;
  font-size: 0.92rem;
  color: rgba(247, 245, 240, 0.62);
  max-width: 62ch;
}
.video-rotulo {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 7px;
}

.diferenciais {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
  margin-top: 70px;
}
.diferencial {
  background: var(--ink);
  padding: 34px 26px;
  transition: background 0.3s ease;
}
.diferencial:hover { background: #1a1a1a; }
.dif-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--yellow);
  letter-spacing: 0.2em;
}
.diferencial h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 1rem;
  margin: 12px 0 8px;
  letter-spacing: 0.02em;
}
.diferencial p { font-size: 0.85rem; color: rgba(247,245,240,0.6); }

/* ---------- Obras ---------- */
.obras { background: var(--paper-2); }

/* ---------- Obras em destaque ---------- */
.destaques {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 70px;
}
.destaque {
  background: var(--paper);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}
.destaque:hover { transform: translateY(-6px); box-shadow: 0 20px 44px rgba(16,16,16,0.13); }

.destaque-foto {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ink);
}
/* selo que diz se a imagem é do canteiro ou do empreendimento pronto */
.destaque-selo {
  position: absolute;
  left: 0; bottom: 0;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 11px;
}
.destaque-selo.canteiro { background: var(--ink); color: var(--yellow); }
.destaque-selo.pronto { background: rgba(16,16,16,0.78); color: var(--paper); }
.destaque-foto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.destaque:hover .destaque-foto img { transform: scale(1.05); }

.destaque-info { padding: 24px 24px 26px; }
.destaque-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  margin-bottom: 14px;
}
.destaque-tag.areia-brita { background: var(--yellow); color: var(--ink); }
.destaque-tag.argamassa { background: var(--ink); color: var(--paper); }
.destaque-info h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.22;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.destaque-local {
  font-size: 0.88rem;
  color: var(--gray);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}
.destaque-local span { font-family: var(--font-mono); font-size: 0.74rem; }
.destaque-contratante {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--gray);
}
.destaque-contratante strong { color: var(--ink); font-weight: 600; }

/* divisor entre destaques e a lista completa */
.obras-divisor {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 30px;
}
.obras-divisor span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  white-space: nowrap;
}
.obras-divisor::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.obras-filtros {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}
.filtro {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  padding: 11px 20px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
}
.filtro:hover { transform: translateY(-2px); }
.filtro.ativo { background: var(--ink); color: var(--paper); }
.filtro-count { color: var(--yellow); font-family: var(--font-mono); font-size: 0.75rem; }

.obras-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.obra-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 28px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.4s ease;
  opacity: 0;
  transform: translateY(24px);
}
.obra-card.visivel { opacity: 1; transform: translateY(0); }
.obra-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.obra-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(16,16,16,0.09); }
.obra-card:hover::before { transform: scaleX(1); }

.obra-topo {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}
.obra-nome {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.25;
  text-transform: uppercase;
}
.obra-ano {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
  white-space: nowrap;
  padding-top: 3px;
}
.obra-local {
  font-size: 0.86rem;
  color: var(--gray);
  margin-top: auto;
}
.obra-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
}
.obra-tag.areia-brita { background: var(--yellow); color: var(--ink); }
.obra-tag.argamassa { background: var(--ink); color: var(--paper); }

/* ---------- Clientes (fundo escuro) ---------- */
.clientes { background: var(--ink); color: var(--paper); }
.clientes .section-title { color: var(--paper); }
.section-sub-light { color: rgba(247,245,240,0.55); }

/* Placas claras: 16 das 20 logos têm fundo branco embutido, então
   sobre o fundo escuro elas só funcionam dentro de um cartão claro. */
.clientes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.cliente {
  /* branco puro: as logos com fundo branco embutido precisam fundir sem emenda */
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px 20px;
  min-height: 116px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cliente img {
  max-width: 100%;
  max-height: 68px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.72;
  transition: filter 0.35s ease, opacity 0.35s ease;
}
.cliente:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
}
.cliente:hover img { filter: grayscale(0); opacity: 1; }

/* ---------- Contato ---------- */
.contato { background: var(--paper); }
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contato-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 30px;
}
.contato-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 10px;
}
.contato-item a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.02rem;
  padding: 2px 0;
  transition: color 0.2s ease;
}
.contato-item a:hover { color: var(--yellow-deep); }
.contato-item p { font-size: 0.95rem; color: var(--ink-soft); }

.contato-cta {
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 44px 40px;
}
.contato-cta p {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 28px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 70px 0 40px;
  text-align: center;
}
.footer-frase {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.9rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--paper);
}
.footer-frase em {
  font-style: normal;
  color: var(--yellow);
}
.footer-risco {
  display: block;
  width: 56px;
  height: 3px;
  background: var(--yellow);
  margin: 34px auto 26px;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(247, 245, 240, 0.4);
}

/* ---------- Voltar ao topo ---------- */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 48px; height: 48px;
  background: var(--yellow);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 700;
  z-index: 900;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 8px 24px rgba(16,16,16,0.18);
}
.back-top.visivel { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { transform: translateY(-4px); }

/* ---------- Barra de contato fixa (celular) ---------- */
.barra-mobile { display: none; }
.barra-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  padding: 17px 10px;
}
.barra-btn svg { width: 19px; height: 19px; flex-shrink: 0; }
.barra-ligar { background: var(--paper); color: var(--ink); border-right: 1px solid var(--line); }
.barra-zap { background: var(--ink); color: var(--paper); }

/* ---------- Animações de scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.ativo { opacity: 1; transform: translateY(0); }

.reveal-line {
  transform: translateY(110%);
  transition: transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-line.ativo { transform: translateY(0); }

.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }
.delay-4 { transition-delay: 0.48s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal-line, .obra-card { opacity: 1 !important; transform: none !important; transition: none !important; }
  .marquee-track, .scroll-hint span { animation: none !important; }
}

/* ---------- Responsivo ---------- */
@media (max-width: 960px) {
  .section { padding: 90px 0; }
  .menu-inner { grid-template-columns: 1fr; gap: 40px; align-content: center; }
  .menu-lado { border-left: none; border-top: 1px solid var(--line); padding-left: 0; padding-top: 30px; }
  .header-fone { display: none; }
  .sobre-grid { grid-template-columns: 1fr; gap: 30px; }
  .sobre-ano { order: -1; text-align: left; }
  .stats { grid-template-columns: 1fr 1fr; gap: 30px 0; }
  .stat:nth-child(3) { border-left: none; padding-left: 0; }
  .servicos-grid { grid-template-columns: 1fr; }
  .diferenciais { grid-template-columns: 1fr 1fr; }
  .obras-grid { grid-template-columns: 1fr 1fr; }
  .destaques { grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 54px; }
  .destaques .destaque:nth-child(3) { grid-column: 1 / -1; }
  .destaques .destaque:nth-child(3) .destaque-foto { aspect-ratio: 21 / 9; }
  .clientes-grid { grid-template-columns: repeat(3, 1fr); }
  .contato-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer { padding: 60px 0 36px; }
}

@media (max-width: 640px) {
  /* Cabeçalho enxuto: só hambúrguer e logo centralizada.
     O contato desce para a barra fixa, no alcance do polegar. */
  .nav-toggle-label { display: none; }
  .brand-text { display: none; }
  .brand-logo { height: 46px; }
  .header-contato { display: none; }

  .barra-mobile {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 999;
    border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom);
    box-shadow: 0 -6px 24px rgba(16, 16, 16, 0.1);
  }
  /* espaço para a barra não cobrir o fim da página nem o letreiro do hero */
  body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
  .hero { min-height: calc(100svh - 58px); }
  .back-top { display: none; }

  .menu { align-items: flex-start; overflow-y: auto; }
  .menu-inner { padding-top: calc(var(--header-h) + 24px); padding-bottom: 40px; }
  .menu-nav a { gap: 14px; font-size: clamp(1.6rem, 8vw, 2.2rem); }

  .hero-title { font-size: clamp(2.2rem, 11vw, 3.2rem); }
  .scroll-hint { display: none; }

  /* Em tela baixa o conteúdo do hero passava por baixo do letreiro, que
     era absoluto. No celular ele entra no fluxo e é empurrado para o fim. */
  .hero {
    justify-content: flex-start;
    padding-top: calc(var(--header-h) + 20px);
  }
  /* padding no próprio bloco, e não margem no último filho, que era o que
     comprimia o conteúdo e deixava o botão passar por baixo do letreiro */
  .hero-content { padding-bottom: 48px; flex-shrink: 0; }
  .hero-footer {
    position: static;
    transform: none;
    width: 100%;
    max-width: none;
    margin-top: auto;
    padding-left: 4vw;
    padding-right: 4vw;
  }
  .obras-grid { grid-template-columns: 1fr; }
  .destaques { grid-template-columns: 1fr; gap: 14px; margin-bottom: 44px; }
  .destaques .destaque:nth-child(3) .destaque-foto { aspect-ratio: 16 / 10; }
  .clientes-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cliente { min-height: 96px; padding: 18px 16px; }
  .cliente img { max-height: 56px; }
  .contato-info { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .servico-card { padding: 32px 24px; }
  .diferenciais { grid-template-columns: 1fr; }
  .fundador { flex-direction: column; align-items: flex-start; gap: 30px; padding: 32px 24px; }
  .video { margin-top: 44px; }
  .video-play { width: 62px; height: 62px; }
  .video-play svg { width: 25px; height: 25px; }
  .video-duracao { left: 14px; bottom: 14px; font-size: 0.64rem; }
  .contato-cta { padding: 32px 24px; }
  .btn-lg { padding: 18px 30px; width: 100%; text-align: center; }
}

/* ---------- Formulário de contato ---------- */
.cta-chamada { font-size: 1.15rem; font-weight: 500; margin-bottom: 28px; }

.form { display: flex; flex-direction: column; gap: 16px; }
.form-linha { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-campo { display: flex; flex-direction: column; gap: 7px; }
.form-campo span {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}
.form-campo input,
.form-campo textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 13px 14px;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-campo textarea { resize: vertical; min-height: 96px; }
.form-campo input:focus,
.form-campo textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--yellow);
}
.form-campo input::placeholder,
.form-campo textarea::placeholder { color: #a8a49c; }

/* campo isca para robôs: invisível para gente */
.form-mel { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.form-enviar { margin-top: 6px; width: 100%; text-align: center; cursor: pointer; }

.cta-ou {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  text-align: center;
  margin: 24px 0 14px;
}
.contato-cta .btn-ghost { display: block; text-align: center; }

/* ---------- Página de confirmação ---------- */
.obrigado {
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--paper);
}
.obrigado-inner { text-align: center; padding: 60px 0; }
.obrigado-logo { height: 78px; margin-bottom: 34px; }
.obrigado h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.05;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.obrigado h1 em { font-style: normal; color: var(--yellow); }
.obrigado p { max-width: 52ch; margin: 0 auto 36px; color: var(--ink-soft); }
.obrigado-acoes { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 640px) {
  .form-linha { grid-template-columns: 1fr; }
  .obrigado-acoes .btn { width: 100%; text-align: center; }
}