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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0b0f1a;
  color: #e5e7eb;
  font-family: system-ui, sans-serif;
}

main {
  text-align: center;
  position: relative;
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

#game {
  display: block;
  margin: 0 auto;
  background: #111827;
  border: 2px solid #1f2937;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.help {
  margin-top: 0.5rem;
  opacity: 0.8;
  font-size: 0.95rem;
}

/* Controles touch */
.touch-controls {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.touch-controls button {
  width: 60px;
  height: 60px;
  font-size: 24px;
  border-radius: 10px;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  touch-action: none;
}