* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f4f4f4;
}

.container {
  max-width: 1200px;
  margin: auto;
}

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

nav {
  background-color: green;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
}

nav li {
  margin: 0 1rem;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 1rem;
  display: block;
}

nav a:hover {
  background-color: #555;
}

.mid-section {
  display: flex;
  justify-content: space-between;
  padding: 2rem;
  gap: 1rem;
}

.column {
  flex: 1;
  background-color: white;
  padding: 1rem;
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.column img {
  width: 100%;
  height: 200px;
  background-color: #ccc;
  margin-bottom: 1rem;
}

footer {
  background-color: blue;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

/* Responsive layout for smaller screens */
@media only screen and (max-width: 768px) {
  .mid-section {
    flex-direction: column;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
  }

  nav li {
    margin: 0.5rem 0;
  }
}