* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  height: 100%;
  background: radial-gradient(circle at 50% 20%, #2e5c8a, #10233a 80%);
  font-family: 'Baloo 2', sans-serif;
  overflow: hidden;
  touch-action: manipulation;
}
body {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
#game-wrap {
  width: 100%; max-width: 440px;
  display: flex; flex-direction: column; align-items: center;
  padding: 6px;
}
#canvas {
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5), 0 0 0 4px #ffd200;
  display: block;
  background: #7ec8ff;
  touch-action: none;
}
#touch-controls {
  display: flex; gap: 10px; margin-top: 10px; width: 100%;
  max-width: 400px; justify-content: center;
}
.tbtn {
  flex: 1;
  font-family: 'Baloo 2', sans-serif;
  font-weight: 800; font-size: 22px;
  color: #7a2b00;
  background: linear-gradient(#fff, #ffe98a);
  border: 3px solid #ffd200;
  border-radius: 16px;
  padding: 14px 0;
  cursor: pointer;
  box-shadow: 0 5px 0 #c99700;
  user-select: none;
  transition: transform .06s, box-shadow .06s;
}
.tbtn:active { transform: translateY(4px); box-shadow: 0 1px 0 #c99700; }
.tbtn.turbo {
  color: #fff; background: linear-gradient(#ff7043, #ff4b2b);
  border-color: #ff4b2b; box-shadow: 0 5px 0 #a12000;
  font-size: 18px; flex: 1.4;
}
.tbtn.turbo:active { box-shadow: 0 1px 0 #a12000; }
footer {
  margin-top: 8px; text-align: center;
}
footer a {
  color: #ffd200; font-weight: 600; font-size: 13px;
  text-decoration: none; opacity: .85;
}
footer a:hover { text-decoration: underline; }
@media (min-width: 500px) {
  .tbtn { max-width: 130px; }
}
</parameter>
</invoke>