* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.game-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(255,255,255,0.1);
  padding: 20px 30px;
  border-radius: 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

h1 {
  margin-bottom: 20px;
  font-size: 2em;
}

canvas {
  width: 400px;       /* Display size */
  height: 400px;
  background-color: #111;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 0 10px rgba(255,255,255,0.3);
  display: block;
}

.info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: 15px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  background: #fff;
  color: #333;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #eee;
}

.color-picker {
  margin-bottom: 15px;
}

.color-picker label {
  font-weight: bold;
  margin-right: 10px;
}

.credit {
  font-size: 14px;
  opacity: 0.8;
}