body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f9f9f9;
  color: #333;
}
.main-content {
  padding: 20px;
}
.hero {
  background: linear-gradient(to right, #1e40af, #3730a3);
  color: white;
  text-align: center;
  padding: 60px 20px;
  border-radius: 20px;
}
.hero h1 {
  font-size: 3em;
}
.hero p {
  font-size: 1.2em;
  margin: 20px auto;
  max-width: 600px;
}
.buttons .btn {
  display: inline-block;
  margin: 10px;
  padding: 12px 20px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
}
.primary { background: white; color: #1e40af; }
.whatsapp { background: #25D366; color: white; }
.call { background: #2563eb; color: white; }

.projects {
  margin: 60px 0;
  text-align: center;
}
.project-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 30px;
}
.card {
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.card img {
  height: 80px;
  object-fit: contain;
}
.card h3 {
  margin-top: 10px;
}

.contact {
  background: #f0f0f0;
  padding: 40px 20px;
  border-radius: 20px;
  max-width: 800px;
  margin: 0 auto 60px auto;
}
.contact-info p, .contact-info a {
  margin: 10px 0;
  display: block;
}
form {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}
input, textarea {
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #ccc;
  width: 100%;
}
button {
  padding: 12px;
  border: none;
  background: #1e40af;
  color: white;
  border-radius: 10px;
  font-size: 1em;
}