/* Global reset */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f9f9f9;
  color: #333;
}

/* Navigation */
.menu {
  display: flex;
  list-style: none;
  background: #222;
  padding: 0.5em;
  margin: 0;
}

.menu li {
  margin-right: 1em;
}

.menu a {
  color: #fff;
  text-decoration: none;
  padding: 0.5em;
}

.menu a:hover {
  background: #555;
  border-radius: 5px;
}

/* Main content */
main {
  padding: 1em;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1em;
}

table th, table td {
  padding: 0.5em;
  border: 1px solid #ccc;
  text-align: left;
}

/* Footer */
footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 1em;
  margin-top: 2em;
}