:root {
  --bg-color: #121212;
  --border-color: #00e676;
  --text-color: #ffffff;
  --button-bg: #00e676;
  --button-hover: #00c853;
  --snake-color: #76ff03;
  --food-colors: red, yellow, pink, cyan, orange;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  height: 100vh;
  background-color: var(--bg-color);
  color: var(--text-color);
  text-align: center;
}

canvas {
  border: 4px solid var(--border-color);
  border-radius: 10px;
}

#score {
  font-size: 28px;
  margin-bottom: 15px;
  font-weight: bold;
}

#leaderboard {
  margin-top: 20px;
  font-size: 18px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 15px;
  width: 320px;
  background: rgba(0, 230, 118, 0.1);
}

#controls,
#settings {
  margin-top: 15px;
}

button,
select,
input {
  font-size: 16px;
  padding: 12px 20px;
  margin: 5px;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  background-color: var(--button-bg);
  color: #000;
  font-weight: bold;
  transition: 0.3s;
}

button:hover {
  background-color: var(--button-hover);
}

ul {
  list-style: none;
  padding: 0;
}

li {
  margin: 5px 0;
}