body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f6f8fa;
  color: #222;
}

.container {
  width: 90%;
  max-width: 900px;
  margin: auto;
}

header {
  background: #0d6efd;
  color: white;
  padding: 2rem 0;
  text-align: center;
}

h1 {
  margin-bottom: 0.3rem;
}

main {
  padding: 2rem 0;
}

.tool-list {
  list-style: none;
  padding: 0;
}

.tool-list li {
  background: white;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1rem;
}

footer {
  text-align: center;
  padding: 1rem;
  color: #555;
  font-size: 0.9rem;
}