/* Genel Stil */
body {
  background-color: #000;
  color: #0f0;
  font-family: 'Courier New', Courier, monospace;
  margin: 0;
  padding: 0;
}

header, footer {
  background-color: #111;
  padding: 20px;
  text-align: center;
  border-bottom: 2px solid #0f0;
}

header h1 {
  margin: 0;
  color: #0f0;
}

nav {
  margin-top: 10px;
}

nav a {
  color: #0f0;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
}

nav a:hover {
  color: #fff;
}

main {
  padding: 40px 20px;
}

h2 {
  color: #0f0;
}

a.button {
  display: inline-block;
  background-color: #075E54;
  color: white;
  padding: 12px 20px;
  text-align: center;
  text-decoration: none;
  font-size: 16px;
  border-radius: 6px;
  margin-top: 20px;
}

a.button:hover {
  background-color: #0b7c65;
}

footer {
  margin-top: 40px;
  border-top: 2px solid #0f0;
  color: #888;
}

form {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

form input, form textarea {
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #0f0;
  background: #111;
  color: #0f0;
}

form input[type="submit"] {
  background: #0f0;
  color: #000;
  cursor: pointer;
  font-weight: bold;
}