body {
  font-family: sans-serif;
  background: #111;
  color: #fff;
  margin: 0;
  padding: 20px;
}

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

h1 {
  text-align: center;
  color: #ffd700;
  margin-bottom: 30px;
}

.tool {
  background: #1e1e1e;
  border: 1px solid #333;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.tool h2 {
  margin-top: 0;
  color: #00ffc8;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  background: #222;
  color: #fff;
  border: 1px solid #444;
  border-radius: 6px;
}

button {
  display: inline-block;
  margin: 8px 6px 0 0;
  padding: 10px 14px;
  background: #ffd700;
  color: #000;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #ffa500;
}

.footer {
  text-align: center;
  margin-top: 40px;
  font-size: 0.9em;
  color: #aaa;
}