* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 16px;
  font-family: sans-serif;
  background: #f7f7f7;
  color: #222;
  display: flex;
  justify-content: center;
}

main {
  width: 100%;
  max-width: 600px;
}

h1 {
  text-align: center;
  font-size: 1.5rem;
  font-family: 'Press Start 2P', monospace;
}
h2 {
  font-size: 1rem;
  font-family: 'Press Start 2P', monospace;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}


#game-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
}

#game-canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #f7f7f7;
  border: 0px solid #333;
  touch-action: manipulation;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #f7f7f7;
  text-align: center;
  padding: 8px;
}

.hidden {
  display: none;
}

#current-score {
  font-family: 'Press Start 2P', monospace;
  text-align: right;
  font-weight: bold;
}

#score-form {
  font-family: 'Press Start 2P', monospace;
  display: flex;
  gap: 8px;
}

#ranking-list {
  padding-left: 20px;
}