body {
  margin: 0;
  background: linear-gradient(135deg, #1a1a1a, #000);
  font-family: Arial, sans-serif;
  color: #fff;
}

.plinko-page {
  min-height: 100vh;
  padding: 20px;
  text-align: center;
}

h1 {
  color: gold;
}

.balance {
  margin: 10px 0;
  font-size: 18px;
}

input {
  padding: 8px;
  width: 120px;
}

button {
  padding: 8px 15px;
  margin-left: 10px;
  cursor: pointer;
}

#board {
  width: 360px;
  height: 420px;
  margin: 20px auto;
  position: relative;
  border: 2px solid gold;
  background: radial-gradient(circle, #222, #000);
}

#ball {
  width: 18px;
  height: 18px;
  background: gold;
  border-radius: 50%;
  position: absolute;
  top: 10px;
  left: 171px;
  display: none;
}

.slots {
  position: absolute;
  bottom: 0;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(13, 1fr);
}

.slots div {
  padding: 5px 0;
  font-size: 12px;
  color: #00bfff;
  border-top: 1px solid #333;
}