body {
  margin: 0;
  background: #0b3d0b;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: Arial, sans-serif;
  overflow: hidden;
}

h1 {
  font-size: 6em;
  color: #00fffa;
  text-shadow:
    0 0 5px #00fffa,
    0 0 10px #00fffa,
    0 0 20px #00fffa,
    0 0 40px #0ff,
    0 0 80px #0ff;
  animation: flicker 1.5s infinite alternate;
  margin: 40px;
  text-align: center;
}

@keyframes flicker {
  0% { opacity: 1; }
  50% { opacity: 0.8; }
  100% { opacity: 1; }
}

#gameCanvas {
  background: #176117;
  border: 12px solid #5a3b18;
  border-radius: 15px;
  box-shadow: 0 0 20px #000;
  max-width: 95vw;
  max-height: 70vh;
}

.buttons {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

button {
  padding: 25px 40px;
  background: #5a3b18;
  color: white;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  font-size: 25px;
  font-weight: bold;
  transition: 0.2s;
}

button:hover {
  background: #8b5e34;
}

footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #00fffa;
  font-weight: bold;
  padding: 5px;
  text-shadow: 0 0 5px #00fffa;
}

input[type="file"] {
  display: none;
}