body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #fdf6f0;
  color: #333;
}
header {
  background: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  height: 50px;
}
nav a {
  margin-left: 20px;
  text-decoration: none;
  color: white;
  font-weight: bold;
}
main {
  padding: 2rem;
}
.btn {
  background: #ff5e5e;
  color: white;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
}
form input, form select {
  width: 100%;
  padding: 8px;
  margin: 5px 0;
}