body {
  background: linear-gradient(to bottom, black, lightgreen);
  color: black;
  font-family: Verdana, sans-serif;
  margin: 0;
}

* {
  box-sizing: border-box;
}

#container {
  width: 800px;
  margin: auto;
  padding: 20px;
}

header {
  text-align: center;
  font-size: 2em;
  color: #00ffff;
  text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff;
  margin-bottom: 20px;
}

main {
  background-color: #60DB44;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 0 15px #29C454;
  text-align: center; /* THIS is the main fix */
}

.image-container {
  position: relative;
  width: 200px;
  margin: 20px auto;
}

.image-container img {
  width: 100%;
  display: block;
  border-radius: 10px;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 10px;
}

.image-container:hover .overlay {
  opacity: 1;
}

.row {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}

.column {
  width: 200px;
}

.small-img {
  width: 300px;
  display: block;
  margin: 10px auto;
}

ol {
  display: inline-block;
  text-align: left;
}