/* =====================
RESET / BASE
===================== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

section {
  scroll-margin-top: 90px;
}

/* =====================
HEADER (STICKY FUNCIONAL)
===================== */
.header {
  position: sticky;
  top: 0;
  z-index: 10000;
  background: #0b3a66;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 22px;
  font-weight: bold;
  color: #fff;
}

.menu a {
  color: #fff;
  text-decoration: none;
  margin-left: 15px;
  font-weight: bold;
}

/* =====================
HERO FIXO B2B
===================== */
.gtrx-hero {
  position: relative;
  min-height: 85vh;
  background: url("../img/01.jpeg") center / cover no-repeat;
  display: flex;
  align-items: center;
}

.gtrx-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.65);
}

.gtrx-hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 0 8%;
  color: #fff;
}

.gtrx-hero-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.gtrx-hero-content h2 {
  font-size: 1.5rem;
  font-weight: normal;
  margin-bottom: 25px;
}

.gtrx-hero-content p {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 35px;
}

.gtrx-hero-actions a {
  display: inline-block;
  margin-right: 15px;
  padding: 14px 30px;
  background: #f2a900;
  color: #000;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
}

/* =====================
GALERIA ANIMADA DE OBRAS
===================== */
.gtrx-galeria {
  width: 100%;
  overflow: hidden;
  background: #111;
  padding: 40px 0;
}

.gtrx-galeria-track {
  display: flex;
  width: max-content;
  animation: gtrx-scroll 30s linear infinite;
}

.gtrx-galeria-item {
  width: 400px;
  height: 260px;
  margin-right: 20px;
  background-size: cover;
  background-position: center;
  border-radius: 6px;
}

@keyframes gtrx-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* =====================
CARDS
===================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}

.card {
  background: #0b3a66;
  color: #fff;
  text-align: center;
  padding: 20px;
  font-weight: bold;
}

/* =====================
ABOUT / SERVICES
===================== */
.about-services {
  padding: 40px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.services-list {
  list-style: none;
  padding: 0;
}

.services-list li {
  margin-bottom: 8px;
}

/* =====================
PORTFÓLIO
===================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.portfolio-item {
  height: 140px;
  overflow: hidden;
  border-radius: 6px;
  background: #eee;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* =====================
SSO
===================== */
.sso-section {
  background: #eef6f1;
  text-align: center;
  padding: 40px 0;
}

/* =====================
CONTATO
===================== */
.contact {
  padding: 40px 0;
}

/* =====================
FOOTER
===================== */
.footer {
  background: #ddd;
  text-align: center;
  padding: 15px;
  font-size: 14px;
}

/* =====================
WHATSAPP FLUTUANTE
===================== */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 25px;
  right: 25px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  z-index: 9999;
}

.whatsapp-float img {
  width: 34px;
  height: 34px;
}

/* =====================
RESPONSIVO
===================== */
@media (max-width: 900px) {
  .gtrx-hero {
    min-height: auto;
    padding: 60px 0;
  }

  .gtrx-hero-content h1 {
    font-size: 2.2rem;
  }

  .gtrx-galeria-item {
    width: 280px;
    height: 180px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .cards-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}