body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: #333;
  background-color: #f7f9fc;
}
header {
  background-color: #0d47a1;
  color: white;
  padding: 10px 0;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  margin: auto;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}
.hero {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, #2196f3, #1976d2);
  color: white;
}
.hero .btn {
  display: inline-block;
  background: white;
  color: #1976d2;
  padding: 10px 20px;
  border-radius: 5px;
  margin-top: 15px;
}
main.content {
  width: 80%;
  margin: 40px auto;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.product-card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 400px;
}
input, textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}
button {
  background-color: #1976d2;
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
}
footer {
  text-align: center;
  padding: 20px;
  background-color: #0d47a1;
  color: white;
  margin-top: 40px;
}