body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 10px;
  background-color: #f5f5f5;
}

#container {
  max-width: 600px;
  margin: 0 auto;
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  color: #333;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

label {
  font-weight: bold;
  margin-bottom: 5px;
}

input,
select {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

select {
  cursor: pointer;
}

button {
  background-color: #0066cc;
  color: white;
  border: none;
  padding: 12px;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
}

button:hover {
  background-color: #0052a3;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.optional {
  font-style: italic;
  color: #666;
  font-size: 14px;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  padding: 8px 16px;
  background-color: #6c757d;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.back-link:hover {
  background-color: #5a6268;
  text-decoration: none;
}

@media (max-width: 768px) {
  body {
    padding: 5px;
  }

  #container {
    padding: 15px;
  }

  h1 {
    font-size: 1.5rem;
  }

  input,
  select {
    padding: 8px;
    font-size: 14px;
  }

  button {
    padding: 10px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  #container {
    padding: 10px;
  }

  h1 {
    font-size: 1.3rem;
  }

  .form-group {
    gap: 10px;
  }
}