body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: #222;
  background: #f9f9f9;
}

header {
  background: #ff9900;
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
}

header .logo {
  max-width: 80px;
  margin-bottom: 1rem;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.version-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.version-list li {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.version-name {
  font-weight: 600;
  font-size: 1rem;
}

.btn {
  background: #ff9900;
  color: #fff;
  padding: 0.5rem 1rem;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #e07c00;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: #666;
}