body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #333;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.5em;
}

nav {
  position: relative;
}

.menu {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
}

.menu li {
  margin-left: 20px;
}

.menu li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

#menuToggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5em;
  cursor: pointer;
}

main {
  padding: 20px;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 10px;
}

table, th, td {
  border: 1px solid #999;
}

th, td {
  padding: 10px;
  text-align: left;
}

footer {
  background-color: #222;
  color: #ccc; 
  padding: 10px;
  margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .menu {
    flex-direction: column;
    display: none;
    background-color: #333;
    position: absolute;
    right: 0;
    top: 40px;
    width: 150px;
  }

  .menu.show {
    display: flex;
  }

  .menu li {
    margin: 10px 0;
    padding: 0 10px;
  }

  #menuToggle {
    display: block;
  }
}