body {
  font-family: Arial, sans-serif;
  line-height: 1.2;
  margin: 0;
  padding-top: 40px;
  background-image: url("../images/background.jpg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

.back-link {
  position: absolute;
  top: 10px;
  left: 15px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 5px;
  text-decoration: none;
  color: black;
  transition: all 0.3s ease;
}

.back-link:hover,
.back-link:focus-visible {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  transform: scale(1.05);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

section {
  background-color: rgba(255, 255, 255, 0.85);
  padding: 80px 20px;
  margin: 20px auto;
  max-width: 900px;
  border-radius: 12px;
  border: 1px solid #ccc;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
}

ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  section {
    padding: 60px 15px;
  }
  .back-link {
    top: 5px;
    left: 10px;
    padding: 6px 10px;
  }
}

@media (max-width: 480px) {
  section {
    padding: 40px 10px;
  }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.125rem; }
}