/* Main Layout */
main {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* Content Container Animation */
.content-container {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.content-container.visible {
    opacity: 1;
}