body {
  display: flex;
  flex-direction: column;
  font-family: Arial, Helvetica, sans-serif;
}
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #343a40;
  color: white;
  padding: 10px 20px;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}
.sidebar {
  width: 250px;
  height: calc(100vh - 56px); /* Adjust height to exclude header */
  position: fixed;
  top: 56px;
  background-color: #343a40;
  color: white;
}
.sidebar a {
  text-decoration: none;
  color: white;
  display: block;
  padding: 10px;
}
.sidebar a.active, .sidebar a:hover {
  background-color: #495057;
}
.content {
  margin-left: 250px;
  margin-top: 56px; /* Offset for header */
  padding: 20px;
  width: calc(100% - 250px);
}
.breadcrumb {
  padding: 10px 15px;
  border-radius: 0.25rem;
  margin-bottom: 20px;
}
.stats {
  display: flex;
  gap: 20px;
  align-items: start;
}
.stat-card {
  padding: 20px;
  background-color: #f8f9fa;
  border-radius: 0.5rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  flex: 1;
}
.charts {
  margin-top: 40px;
}

/* Responsive styles */
@media (max-width: 768px) {
  .sidebar {
    width: 200px;
  }

  .content {
    margin-left: 200px;
    width: calc(100% - 200px);
  }
}

@media (max-width: 576px) {
  .header {
    padding: 10px;
  }

  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    top: 0;
  }

  .content {
    margin-left: 0;
    width: 100%;
  }
}