.right-sidebar {
  position: sticky;
  top: 150px;
  width: 300px;
  height: auto;
  max-height: calc(100vh - 200px - 200px);
  background-color: #f0f0f0;
  padding: 1em;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  border-left: 1px solid #ccc;
  overflow-y: auto;
  z-index: 10;
}

.right-sidebar-facebook,
.right-sidebar-top,
.right-sidebar-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1em;
}

.right-sidebar-facebook img,
.right-sidebar-top img,
.right-sidebar-bottom img {
  width: 100%;
  max-width: 180px;
  height: auto;
  border: 1px solid #ccc;
  border-radius: 6px;
  transition: transform 0.2s;
}

.right-sidebar-facebook img:hover,
.right-sidebar-top img:hover,
.right-sidebar-bottom img:hover {
  transform: scale(1.05);
}

.right-sidebar-top h4,
.right-sidebar-bottom h4 {
  margin-bottom: 0.5em;
  font-size: 1.1rem;
  text-align: center;
  border-bottom: 2px solid #444;
  padding-bottom: 0.3em;
  margin-top: 0.5em;
}

.sidebar-divider {
  border: none;
  border-top: 5px solid #999;
  margin: 1.5em 0;
  width: 100%;
}

.right-sidebar-bottom ul {
  list-style: none;
  padding-left: 0;
  text-align: center;
}

.right-sidebar-bottom li {
  margin: 0.5em 0;
}