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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

header {
  background-color: #333;
  color: #fff;
  padding: 1rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  outline: none;
}

nav ul li a:focus,
.animal-card:focus {
  outline: 2px solid #ffa600;
}

main {
  display: flex;
  flex-wrap: wrap;
}

.sidebar {
  flex: 1 1 200px;
  background-color: #f4f4f4;
  padding: 1rem;
}

.animal-container {
  flex: 3 1 600px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.animal-card {
  border: 1px solid #ccc;
  border-radius: 5px;
  padding: 1rem;
  background-color: #fff;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.animal-card:hover,
.animal-card:focus {
  transform: scale(1.02);
}

.animal-image {
  width: 100%;
  height: 570px;
  object-fit: cover;
  display: block;
  margin-bottom: 1rem;
}

footer {
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 1rem;
  margin-top: 1rem;
}

@media (max-width: 1024px) {
  .animal-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .animal-container {
    grid-template-columns: 1fr;
  }
}

@media only screen and (max-width: 360px) {
  body {
    font-size: 14px;
  }

  header nav ul li a {
    padding: 5px;
    font-size: 14px;
  }

  .animal-card {
    padding: 0.5rem;
    margin: 0.5rem;
  }
}