:root {
  --grafite: #22282D;
  --grafite-claro: #3B444C;
  --vidro: #5FA8D3;
  --vidro-escuro: #3D7FA3;
  --bronze: #B8834D;
  --bronze-escuro: #96683A;
  --cinza-claro: #F2F4F5;
  --cinza-medio: #DDE2E5;
  --branco: #FFFFFF;
  --texto: #22282D;
  --texto-suave: #626C74;

  --display: 'Big Shoulders Display', sans-serif;
  --body: 'Work Sans', sans-serif;
  --mono: 'Space Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cinza-claro);
  color: var(--texto);
  font-family: var(--body);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* moldura tipo esquadria de alumínio ao redor de imagens de destaque */
.moldura {
  border: 8px solid var(--grafite);
  padding: 6px;
  background: var(--grafite);
  position: relative;
}

.moldura img { display: block; width: 100%; }

.moldura::before, .moldura::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--bronze);
}

.moldura::before { top: -11px; left: -11px; border-right: none; border-bottom: none; }
.moldura::after { bottom: -11px; right: -11px; border-left: none; border-top: none; }

/* header */
.header {
  background: var(--grafite);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.header-logo img { height: 38px; width: auto; }

.header-logo span {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--vidro);
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  color: var(--cinza-medio);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a:hover, .nav a.ativo { color: var(--vidro); }

.nav-whats {
  background: var(--bronze);
  color: var(--branco) !important;
  padding: 0.55rem 1.1rem;
  border-radius: 3px;
  font-weight: 600 !important;
}

.nav-whats:hover { background: var(--bronze-escuro); color: var(--branco) !important; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--branco);
  font-size: 1.5rem;
  cursor: pointer;
}

/* hero */
.hero {
  padding: 4rem 0 5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--bronze);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.75rem;
}

.hero h1, h1.pagina-titulo {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  color: var(--grafite);
}

.hero p, .lead {
  font-size: 1.05rem;
  color: var(--texto-suave);
  max-width: 34rem;
  margin: 0 0 1.75rem;
}

.btn {
  display: inline-block;
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--branco);
  background: var(--grafite);
  padding: 0.85rem 1.5rem;
  border-radius: 3px;
  text-decoration: none;
  transition: background 0.2s ease;
}

.btn:hover { background: var(--grafite-claro); }

.btn-bronze { background: var(--bronze); }
.btn-bronze:hover { background: var(--bronze-escuro); }

/* seção genérica */
.secao {
  padding: 4.5rem 0;
}

.secao-alt {
  background: var(--branco);
}

.secao-escura {
  background: var(--grafite);
  color: var(--cinza-claro);
}

.secao-titulo {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin: 0 0 0.75rem;
  color: inherit;
}

.secao-cabecalho {
  max-width: 40rem;
  margin: 0 auto 3rem;
  text-align: center;
}

.secao-cabecalho .lead { margin: 0 auto; text-align: center; }

/* cards de diferenciais */
.diferenciais {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.diferencial {
  text-align: center;
  padding: 1.5rem;
}

.diferencial-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--vidro);
  margin-bottom: 0.5rem;
}

.diferencial h3 {
  font-family: var(--display);
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}

.diferencial p {
  color: var(--texto-suave);
  font-size: 0.92rem;
  margin: 0;
}

.secao-escura .diferencial p { color: #B7C0C7; }

/* grade de serviços */
.grade-servicos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.servico-card {
  background: var(--branco);
  border: 1px solid var(--cinza-medio);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.servico-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(34, 40, 45, 0.1);
}

.servico-foto {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.servico-foto img { width: 100%; height: 100%; object-fit: cover; }

.servico-info { padding: 1.4rem; }

.servico-info h3 {
  font-family: var(--display);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  color: var(--grafite);
}

.servico-info p {
  font-size: 0.9rem;
  color: var(--texto-suave);
  margin: 0;
}

/* galeria de projetos */
.galeria {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.galeria a { display: block; overflow: hidden; aspect-ratio: 1/1; }

.galeria img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.galeria a:hover img { transform: scale(1.06); }

/* estatísticas */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-numero {
  font-family: var(--display);
  font-size: clamp(2.2rem, 5vw, 3rem);
  color: var(--vidro);
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: #B7C0C7;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.4rem;
}

/* depoimentos */
.depoimentos {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.depoimento {
  background: var(--branco);
  border-left: 3px solid var(--bronze);
  padding: 1.5rem 1.75rem;
}

.depoimento p {
  font-style: italic;
  color: var(--texto);
  margin: 0 0 1rem;
  font-size: 0.92rem;
}

.depoimento-autor {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.depoimento-autor img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
}

.depoimento-autor cite {
  font-style: normal;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--texto-suave);
}

/* sobre / imagens lado a lado */
.duas-colunas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.duas-colunas .texto h2 { margin-top: 0; }

/* CTA banner */
.cta-banner {
  position: relative;
  padding: 5rem 0;
  color: var(--branco);
  text-align: center;
  background-size: cover;
  background-position: center;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(34, 40, 45, 0.82);
}

.cta-banner .container { position: relative; }

.cta-banner h2 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  max-width: 40rem;
  margin: 0 auto 1.5rem;
}

/* contato */
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.contato-grid iframe {
  width: 100%;
  height: 340px;
  border: 8px solid var(--grafite);
}

.contato-lista {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contato-lista li {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}

.contato-icone {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--branco);
  background: var(--bronze);
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contato-lista h4 {
  margin: 0 0 0.15rem;
  font-size: 0.95rem;
}

.contato-lista p, .contato-lista a {
  margin: 0;
  color: var(--texto-suave);
  text-decoration: none;
  font-size: 0.92rem;
}

.contato-lista a:hover { color: var(--vidro-escuro); }

/* footer */
.footer {
  background: var(--grafite);
  color: #9EA8AF;
  padding: 3rem 0 1.5rem;
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.footer-logo img { height: 32px; }

.footer-logo span {
  font-family: var(--display);
  font-weight: 700;
  color: var(--branco);
  font-size: 1.1rem;
}

.footer h5 {
  color: var(--branco);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.9rem;
}

.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.footer a { color: #9EA8AF; text-decoration: none; }
.footer a:hover { color: var(--vidro); }

.footer-baixo {
  border-top: 1px solid var(--grafite-claro);
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.78rem;
}

/* responsivo */
@media (max-width: 900px) {
  .hero-grid, .duas-colunas, .contato-grid { grid-template-columns: 1fr; }
  .diferenciais, .stats, .depoimentos { grid-template-columns: 1fr 1fr; }
  .grade-servicos { grid-template-columns: 1fr 1fr; }
  .galeria { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav { position: fixed; top: 66px; left: 0; right: 0; background: var(--grafite); flex-direction: column; align-items: flex-start; padding: 1rem 1.5rem 1.5rem; gap: 1rem; display: none; }
  .nav.aberto { display: flex; }
  .nav-whats { align-self: flex-start; }
  .menu-toggle { display: block; }
  .diferenciais, .stats, .depoimentos, .grade-servicos { grid-template-columns: 1fr; }
  .galeria { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

a:focus-visible, button:focus-visible { outline: 2px solid var(--vidro); outline-offset: 2px; }