body {
  margin: 0;
  font-family: system-ui, -apple-system, Roboto, sans-serif;
  background: #F0F4EE;
  color: #181617;
}

header {
  background: #43933C;
  color: white;
  padding: 1rem;
  text-align: center;
  font-weight: bold;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.card {
  background: white;
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,.1);
}

.card:hover {
  outline: 2px solid #43933C;
}