.sidebar {
  min-height: 100vh;
  background-color: #c7efe2;
  border-right: 1px solid #dee2e6;
}

.post-card {
  margin-bottom: 20px;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}