html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #09090f;
}

#canvas {
  display: block;
  width: 100vw;
  height: 100vh;
  cursor: grab;
  touch-action: none;
}

#canvas.grabbing {
  cursor: grabbing;
}

/* Enable Tilt button (iOS only) */
.tilt-btn {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  padding: 0.7rem 1.6rem;
  background: rgba(255,153,68,0.15);
  border: 1px solid rgba(255,153,68,0.4);
  border-radius: 999px;
  color: #ff9944;
  font-size: 0.9rem;
  font-family: 'SF Pro Display', 'Inter', 'Segoe UI', system-ui, sans-serif;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease;
}

.tilt-btn:hover { background: rgba(255,153,68,0.25); }
.tilt-btn.hidden { display: none; }

/* Hint */
.hint {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 10;
  display: flex;
  gap: 0.8rem;
}

.hint-text {
  display: inline-block;
  padding: 0.4rem 1.1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  color: rgba(255,255,255,0.45);
  font-size: 0.78rem;
  font-family: 'SF Pro Display', 'Inter', 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.04em;
  backdrop-filter: blur(8px);
  animation: hintFade 4s ease 1.5s forwards;
  opacity: 1;
}

/* Show desktop hint only on pointer devices */
@media (hover: none) {
  .desktop-hint { display: none; }
}
@media (hover: hover) {
  .mobile-hint { display: none; }
}

@keyframes hintFade {
  0%   { opacity: 1; }
  70%  { opacity: 1; }
  100% { opacity: 0; }
}