body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background-color: #f5f5f5;
}

#slot-machine {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.slot-container {
  display: grid;
  grid-template-columns: repeat(5, auto);
  grid-template-rows: repeat(3, auto);
  row-gap: 5px;
  column-gap: 5px;
  margin: 0;
  padding: 0;
  max-width: 90%;
}

.slot {
  width: calc(10vw - 5px);
  height: calc(10vw - 5px);
  margin: 5px;
  border: 2px solid #333;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.5s ease-in-out;
  overflow: hidden;
}

.slot img {
  width: 100%;
  height: auto;
  display: block;
}

button {
  font-size: 1.5em;
  padding: 15px 50px;
  cursor: pointer;
  background-color: #4caf50;
  color: #fff;
  border: none;
  border-radius: 15px;
  outline: none;
  margin-top: 15px;
}

button:hover {
  background-color: #23cd2c;
}

#points {
  font-size: 1.2em;
  margin-top: 10px;
  color: #333;
}

#result {
  font-size: 1.2em;
  margin-top: 10px;
  font-weight: bold;
}

footer {
  height: 50px;
  background-color: #ffffff;
  text-align: center;
  line-height: center;
  width: 100%;
  position: fixed;
  bottom: 0;
}