/* ======= Fontes ======= */
body {
  margin: 0;
  padding: 0;
  font-family: 'Open Sans', sans-serif;
  color: #333;
  background: #F4F6F7;
  line-height: 1.6;
}

/* ======= HEADER ======= */
header {
  background: linear-gradient(rgba(10,61,98,0.7), rgba(10,61,98,0.7)),
              url('https://images.unsplash.com/photo-1581090700227-4c4f4c94a8a7?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 120px 20px;
}
header h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 3rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}
header p {
  font-size: 1.2rem;
  margin-top: 15px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 500;
}

/* ======= NAV ======= */
nav {
  display: flex;
  justify-content: center;
  background: #0A3D62;
  position: sticky;
  top: 0;
  z-index: 1000;
}
nav a {
  color: white;
  padding: 16px 22px;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  transition: 0.3s;
}
nav a:hover {
  background: #3C8DBC;
}

/* ======= SECTIONS ======= */
section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: auto;
}
h2 {
  text-align: center;
  color: #0A3D62;
  font-family: 'Montserrat', sans-serif;
  margin-bottom: 30px;
  font-size: 2rem;
}

/* ======= CARDS ======= */
.servicos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}
.card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}
.card h3 {
  font-family: 'Montserrat', sans-serif;
  color: #0A3D62;
  margin-bottom: 15px;
}

/* ======= CLIENTES ======= */
.clientes {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
}
.clientes img {
  width: 120px;
  filter: grayscale(100%);
  transition: 0.3s;
}
.clientes img:hover { filter: grayscale(0%); }

/* ======= BOTÕES ======= */
.btn-whatsapp, .btn-hero {
  display: inline-block;
  background: #25D366;
  color: white;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  transition: 0.3s;
}
.btn-whatsapp:hover, .btn-hero:hover {
  background: #1ebe5d;
}

/* ======= RODAPÉ ======= */
footer {
  background: #0A3D62;
  color: #ddd;
  text-align: center;
  padding: 25px 20px;
  margin-top: 40px;
}
footer p { margin: 6px 0; }
footer a { color: #3C8DBC; text-decoration: none; }
footer a:hover { text-decoration: underline; }