body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #0d1117;
  color: #c9d1d9;
}

header {
  background-color: #161b22;
  padding: 1em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1em;
}

nav a {
  color: #58a6ff;
  text-decoration: none;
}

section {
  padding: 2em;
}

form {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  max-width: 400px;
}

input, textarea {
  padding: 0.5em;
  background-color: #21262d;
  border: 1px solid #30363d;
  color: #c9d1d9;
}

button {
  background-color: #238636;
  color: white;
  padding: 0.5em;
  border: none;
  cursor: pointer;
}

footer {
  background-color: #161b22;
  text-align: center;
  padding: 1em;
}