body {
  margin: 0;
  font-family: Arial, sans-serif;
}

header {
  display: flex;
  justify-content: space-between;
  padding: 20px;
  background: #111;
  color: #fff;
  position: sticky;
  top: 0;
}

nav a {
  color: #fff;
  margin-left: 15px;
  text-decoration: none;
}

section {
  padding: 80px 20px;
  text-align: center;
}

.hero {
  background: #f5f5f5;
}

.gears {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
}

.gear {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  transition: transform 0.3s;
}

.gear:hover {
  transform: rotate(20deg) scale(1.1);
}

.g1 { background: #007bff; }
.g2 { background: #28a745; }
.g3 { background: #ffc107; }

footer {
  text-align: center;
  padding: 20px;
  background: #111;
  color: #fff;
}