body {
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  margin: 0;
  padding: 0;
  color: #222;
}

header {
  background: black;
  color: #fff;
  padding: 2em 1em;
  text-align: center;
}

main {
  max-width: 600px;
  margin: 2em auto;
  background: #fff;
  padding: 2em;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

form {
  display: flex;
  flex-direction: column;
  gap: 1em;
}

input, textarea {
  padding: 0.5em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  background: #4f8cff;
  color: #fff;
  border: none;
  padding: 0.75em;
  border-radius: 4px;
  cursor: not-allowed;
  opacity: 0.7;
}

footer {
  text-align: center;
  padding: 1em;
  color: #888;
  font-size: 0.9em;
}