#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  cursor: grab;
}

#canvas:active {
  cursor: grabbing;
}

.invalid-feedback {
  color: #ff6b7a;
  font-size: 13px;
  margin-top: 5px;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  border: 1px solid;
}

.btn-google {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn-google:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 255, 255, 0.3);
}

.instructions {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #00ffff;
  font-size: 12px;
  text-align: center;
  z-index: 10;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
  opacity: 0.7;
}

@media (max-width: 768px) {
  .instructions {
    font-size: 10px;
    padding: 0 10px;
  }
}