body {
  background-color: #111;
  color: #eee;
  font-family: "Segoe UI", monospace;
  padding: 20px;
  margin: 0;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 2rem;
}

h1 {
  text-align: center;
  color: #00ffc3;
}

.subtitle {
  text-align: center;
  font-style: italic;
  margin-bottom: 2rem;
  color: #aaa;
}

section {
  margin-bottom: 2rem;
  border: 1px solid #444;
  padding: 1rem;
  border-radius: 7px;
}

textarea,
input[type="text"],
input[type="number"] {
  width: 96%;
  padding: 0.7rem;
  margin: 0.5rem 0;
  background-color: #222;
  color: #fff;
  border: 1px solid #444;
  border-radius: 5px;
}

button {
  background-color: #00ffc3;
  border: none;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  font-weight: bold;
  border-radius: 5px;
}

button:hover {
  background-color: #00cc9a;
}

pre {
  background-color: #222;
  padding: 1rem;
  border-radius: 5px;
  white-space: pre-wrap;
}

footer {
  bottom: 0;
}