.off-canvas {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  height: 100%;
  background-color: #f1f1f1;
  transition: right 0.3s ease-in-out;
  z-index: 1;
}

.off-canvas.open {
  right: 0;
}

.off-canvas-close {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
  color: #ccc;
  background-color: transparent;
  border: 0;
  cursor: pointer;
}

.off-canvas-close:hover {
  color: #aaa;
}

.off-canvas-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 0;
}