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

body {
  overflow: hidden;
  background: #0a0a1a;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #ffffff;
}

/* Loading screen */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #0a0a1a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

#loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

#loading-screen h1 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, #00f0ff, #ff00aa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

#loading-screen .loader {
  width: 60px;
  height: 60px;
  border: 2px solid rgba(0, 240, 255, 0.2);
  border-top-color: #00f0ff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* VR button override */
.a-enter-vr-button {
  background: linear-gradient(135deg, #00f0ff, #ff00aa) !important;
  border: none !important;
  border-radius: 12px !important;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  padding: 14px 28px !important;
  min-width: 120px !important;
  color: #ffffff !important;
  cursor: pointer !important;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3) !important;
}

/* Info overlay for non-VR users */
#info-overlay {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10, 10, 26, 0.9);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 12px;
  padding: 12px 24px;
  z-index: 100;
  text-align: center;
  font-size: 0.85rem;
  color: #aaaacc;
  pointer-events: none;
}

#info-overlay span {
  color: #00f0ff;
}