body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f5f5;
}

.container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 200px;
  background: #1e2a38;
  color: #fff;
  padding: 20px;
}

.sidebar h2 {
  font-size: 20px;
  margin-bottom: 20px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar ul li {
  padding: 10px 0;
  border-bottom: 1px solid #334;
  cursor: pointer;
}

.sidebar ul li:hover {
  color: #ddd;
}

/* Main content */
.main-content {
  flex: 1;
  padding: 30px;
  background: #f5f5f5;
}

.main-content h1 {
  margin-bottom: 20px;
}

.stats {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  flex: 1;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: left;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 16px;
}

.card p {
  font-size: 22px;
  font-weight: bold;
  color: #333;
}

/* Table */
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

thead {
  background: #e5edf3;
}

th, td {
  padding: 12px 15px;
  text-align: left;
}

tr:nth-child(even) {
  background: #f0f0f0;
}