/* ==========================
   VARIÁVEIS GERAIS
========================== */
:root {
  --aluminum: #bfc3c7; /* alumínio escovado */
  --aluminum-bright: #d7dbdf; /* alumínio polido brilhante */
  --bg: #ffffff;
  --text: #1b1d20;
  --muted: #6b7280;
  --accent: #8a8f98;
  --shadow: 0 10px 30px rgba(0, 0, 0, .08);
  --radius: 16px;
}

/* Reset básico */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Montserrat', 'Open Sans', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  scroll-behavior: smooth;
  overflow-x: hidden;
  padding-top: 70px; /* altura aproximada da nav */
}

/* ==========================
   NAVBAR
========================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: saturate(140%) blur(8px);
  background: linear-gradient(180deg, rgba(2,48,98,1), rgba(2,48,98,0.8));
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 14px 20px;
}
.brand img {
  filter: brightness(0) invert(1); /* transforma em branco */
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .3px;
}
.brand .logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--aluminum-bright), #f4f6f8 35%, #e4e7eb 65%, #cfd5db);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8), inset 0 -1px 0 rgba(0,0,0,.05);
}
.nav__links {
  margin-left: auto;
  display: flex;
  gap: 22px;
}
.nav__links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 12px;
  transition: all .25s ease;
}
.nav__links a:hover {
  background: rgba(0,0,0,.04);
  transform: translateY(-1px);
}
.cta {
  margin-left: 8px;
  background: var(--text);
  color: #fff;
  padding: 10px 14px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--shadow);
}
.cta:hover { opacity: .92; }

/* ==========================
   HERO
========================== */
.hero {
  position: relative;
  min-height: 86vh;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(105%) contrast(103%);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.05) 40%, rgba(0,0,0,0.35) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 0 20px;
}
.hero h1 { font-size: clamp(32px, 5vw, 56px); margin: 0 0 10px; }
.hero p { margin: 0 0 26px; font-weight: 500; opacity: .95; }
.hero .btn {
  display: inline-block;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--aluminum-bright), #ffffff);
  color: #111;
  font-weight: 700;
  box-shadow: var(--shadow);
}
.hero .btn:hover { transform: translateY(-2px); }
/* ==========================
   SEÇÕES GERAIS
========================== */
section { padding: 84px 20px; }
.container { max-width: 1200px; margin: 0 auto; }
.section-title { font-size: clamp(24px, 3vw, 36px); margin: 0 0 14px; }
.section-sub { color: var(--muted); margin: 0 0 34px; }

/* ==========================
   SOBRE
========================== */
.sobre {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 28px;
  align-items: center;
}
.sobre img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg,#f6f7f8,#e9edf2);
  border: 1px solid rgba(0,0,0,.06);
  margin-bottom: 10px;
}
.chip i { color: #6b7280; }

/* ==========================
   SERVIÇOS
========================== */
.grid { display: grid; gap: 18px; }
.grid.services { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.card {
  background: #fff;
  border: 1px solid rgba(0,0,0,.06);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.12);
}
.card i { font-size: 28px; color: #0f172a; }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  padding: 60px 0;
}

.container h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: #222;
}

/*.container p,*/
.container ul {
  font-size: 1rem;
  margin-bottom: 20px;
}

.container ul {
  padding-left: 20px;
}

 /* Obras */
    .gallery{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .gallery figure{margin:0; position:relative}
    .gallery img{width:100%; height:100%; object-fit:cover; aspect-ratio:16/9; border-radius:14px; cursor:pointer; box-shadow:var(--shadow)}
    .gallery figcaption{position:absolute; left:12px; bottom:10px; background:rgba(0,0,0,.45); color:#fff; padding:6px 10px; border-radius:10px; font-size:12px; backdrop-filter: blur(4px)}


.gallery img:hover {transform: scale(1.05);}


/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.modal-overlay img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,.3);
}

/* ==========================
   CONTATO
========================== */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
form { display: grid; gap: 12px; }
input, textarea {
  width: 100%;
  padding: 14px 14px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,.12);
  background: #fff;
}
textarea { min-height: 140px; resize: vertical; }
button {
  cursor: pointer;
  padding: 12px 16px;
  border: none;
  border-radius: 12px;
  background: #023062;
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: transform .2s ease;
}
button:hover { transform: translateY(-2px); }
.map {
  border: 0;
  width: 100%;
  height: 100%;
  min-height: 360px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

/* ==========================
   FOOTER
========================== */
footer {
  padding: 36px 20px;
  background: linear-gradient(180deg, rgba(2,48,98,1), rgba(2,48,98,0.8));
  border-top: 1px solid rgba(0,0,0,.06);
}
.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}
.social { display: flex; gap: 12px; }
.social a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: #023062;
  border: 1px solid rgba(0,0,0,.08);
}

/* ==========================
   RESPONSIVO
========================== */
@media (max-width: 1024px) {
  .grid.services { grid-template-columns: repeat(3, 1fr); }
  .sobre { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .grid.services { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: 1fr; }
}

/* Botão hamburger */
.nav__toggle {
  display: none;
  background: #023062;
  border: none;
  font-size: 28px;
  cursor: pointer;
  margin-left: auto;
  color: var(--text);
}

/* Mobile */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px; /* altura da navbar */
    left: 0;
    width: 100%;
    background: linear-gradient(180deg, rgba(2,48,98,1), rgba(2,48,98,0.8));
    padding: 20px;
    box-shadow: var(--shadow);
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
  }

  .nav__links a {
    padding: 12px 0;
    font-size: 18px;
    display: block;
  }

  .nav.nav--open .nav__links {
    display: flex;
  }

  .nav__toggle {
    display: block;
  }
}