* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  width: 100%; height: 100%;
  background: #000;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: sans-serif;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
#logo {
  position: relative;
  border-radius: 50%;
  background: #000;
  border: 2px solid #1a1a1a;
  cursor: pointer;
}
.dot {
  position: absolute;
  border-radius: 50%;
  background: #fff;
  will-change: transform;
  pointer-events: none;
}
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  background: rgba(220, 38, 38, 0.92);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
  z-index: 10;
}
#toast.show { opacity: 1; }
#spinner {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 5;
}
#spinner.show { display: flex; }
#spinner .ring {
  width: 32px; height: 32px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }