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

.grid-container {
  display: grid;
  grid-template-areas:
    "header"
    "nav"
    "main"
    "footer";
  grid-template-rows: auto auto 1fr auto;
  height: 100vh;
}

header {
  grid-area: header;
  background-color: #333;
  color: white;
  padding: 1em;
  text-align: center;
  font-size: 1em;
}

h2 {
  text-align: center;
}

.product h3 {
  display: flex;
  justify-content: center;
  align-items: left;
  font-size: 1em;
  color: rgb(0, 0, 0);
  padding: 40px;
  border: 5px solid #ccc;
}

.product h4 {
  display: flex;
  justify-content: center;
  align-items: left;
  font-size: 1em;
  color: rgb(0, 0, 0);
  padding: 40px;
  border: 5px solid #ccc;
}

.product h5 {
  color: white;
}

nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
}

nav button {
  padding: 0.5em 1em;
  font-size: 1em;
}

.main {
  grid-area: main;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1em;
  padding: 1em;
  background-color: #eaeaea;
}

.column {
  background-color: white;
  padding: 1em;
  border: 1px solid #ccc;
  text-align: center;
}

footer {
  
  grid-area: footer;
  background-color: #333;
  color: white;
  text-align: center;
  padding: 1em;
}