body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background: #f8f9fa;
  color: #333;
}
header {
  background: #1e88e5;
  color: #fff;
  padding: 20px;
  text-align: center;
}
header h1 { margin: 0; }
nav { margin-top: 10px; }
nav a {
  color: #fff;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}
.hero {
  background: url('https://source.unsplash.com/1200x400/?gadget,technology') no-repeat center center/cover;
  color: #fff;
  text-align: center;
  padding: 80px 20px;
}
.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}
.hero a {
  background: #ffca28;
  color: #333;
  padding: 12px 25px;
  border-radius: 5px;
  font-weight: bold;
  text-decoration: none;
}
section {
  padding: 50px 20px;
  max-width: 1000px;
  margin: auto;
}
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.service-box {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  text-align: center;
}
.promo {
  background: #e3f2fd;
  text-align: center;
  padding: 40px 20px;
  border-radius: 10px;
  margin-top: 30px;
}
.contact { text-align: center; }
footer {
  background: #1e88e5;
  color: #fff;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}