html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #f6b7c8;
  font-family: sans-serif;
}

canvas {
  display: block;
}

/* CODE GATE */
#gate {
  position: fixed;
  inset: 0;
  background: #f6b7c8;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.gate-box {
  background: white;
  padding: 24px;
  border-radius: 12px;
  text-align: center;
  width: 260px;
}

.gate-box h1 {
  margin: 0 0 16px;
}

.gate-box input {
  width: 100%;
  font-size: 20px;
  padding: 8px;
  margin-bottom: 12px;
}

.gate-box button {
  width: 100%;
  font-size: 18px;
  padding: 10px;
  cursor: pointer;
}

#gateError {
  color: red;
  display: none;
  margin-top: 10px;
}