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

:root{
  --azul:#0b1d3a;
  --azul2:#122b52;
  --laranja:#f5a623;
  --branco:#ffffff;
}

body{
  font-family:'Segoe UI', Arial, sans-serif;
  background:var(--azul);
  color:var(--branco);
  line-height:1.6;
}

.container{
  width:90%;
  max-width:1200px;
  margin:auto;
}

.header{
  background:rgba(11,29,58,0.95);
  position:sticky;
  top:0;
  z-index:10;
  border-bottom:1px solid var(--laranja);
}

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

.logo{
  width:150px;
}

nav ul{
  list-style:none;
  display:none;
  flex-direction:column;
  gap:1rem;
}

nav ul.active{
  display:flex;
}

nav a{
  color:var(--branco);
  text-decoration:none;
  font-weight:500;
}

nav a:hover{
  color:var(--laranja);
}

.hamburger{
  background:none;
  border:none;
  color:var(--branco);
  font-size:2rem;
  cursor:pointer;
}

.hero{
  min-height:90vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:linear-gradient(135deg, rgba(11,29,58,0.9), rgba(245,166,35,0.3));
}

.hero h1{
  font-size:3rem;
  margin-bottom:1rem;
}

.hero p{
  font-size:1.2rem;
  margin-bottom:2rem;
}

.btn{
  background:var(--laranja);
  color:#000;
  padding:1rem 2rem;
  border-radius:30px;
  text-decoration:none;
  font-weight:bold;
}

.btn:hover{
  opacity:0.9;
}

.btn-alt{
  background:#25d366;
  color:#fff;
}

.section{
  padding:4rem 0;
  text-align:center;
}

.bg{
  background:var(--azul2);
}

.grid{
  display:grid;
  gap:2rem;
  margin-top:3rem;
}

.service{
  background:#fff;
  color:#000;
  border-radius:12px;
  padding:1.5rem;
  transition:transform 0.3s, box-shadow 0.3s;
}

.service:hover{
  transform:translateY(-8px);
  box-shadow:0 10px 20px rgba(0,0,0,0.3);
}

.service img{
  width:100%;
  border-radius:10px;
  margin-bottom:1rem;
}

.footer{
  background:#08162d;
  text-align:center;
  padding:1.5rem;
  font-size:0.9rem;
}

@media(min-width:768px){
  nav ul{
    display:flex;
    flex-direction:row;
  }
  .hamburger{
    display:none;
  }
  .grid{
    grid-template-columns:repeat(4,1fr);
  }
}