body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: #f7f9fb;
  color: #222;
}
.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 1rem;
}
header {
  background: #222;
  color: #fff;
}
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.logo {
  font-weight: bold;
  font-size: 1.5rem;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
nav a {
  color: #fff;
  text-decoration: none;
}
.hero {
  background: linear-gradient(90deg, #4f8cff, #38e8ff);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}
.btn {
  background: #222;
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: background .2s;
}
.btn:hover {
  background: #4f8cff;
}
section {
  margin-top: 3rem;
}
.sobre, .servicos, .portfolio, .contato {
  background: #fff;
  border-radius: .5rem;
  box-shadow: 0px 2px 8px rgba(0,0,0,0.04);
  padding: 2rem;
}
.servicos ul {
  padding-left:1.5rem;
}
.portfolio-grid {
  display: flex;
  gap:2rem;
}
.portfolio-item {
  background:#f7f9fb;
  border-radius:.5rem;
  box-shadow:0px 2px 8px rgba(0,0,0,0.04);
  padding:1rem;
}
.portfolio-item img {
  width:100%;
  border-radius:.5rem;
}
form {
  display:flex;
  flex-direction:column;
  gap:.75rem;
}
input, textarea {
  padding:.75rem;
  border-radius:.3rem;
  border:1px solid #ccc;
}
footer {
  background:#222;
  color:#fff;
  text-align:center;
  padding:1.5rem 0 .5rem;
}
/* Responsivo */
@media (max-width:700px) {
 .portfolio-grid { flex-direction:column; }
 nav ul { gap:.75rem; }
}