body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}
header {
  background-color: #222;
  padding: 20px;
  text-align: center;
}
.container {
  max-width: 700px;
  margin: 30px auto;
  background: #fff;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}
input, textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}
.submit-btn {
  margin-top: 25px;
  background: #007bff;
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
}
.submit-btn:hover {
  background: #0056b3;
}