body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f9;
}

.header {
  background: #2c3e50;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
}

.header h1 {
  margin: 0;
  font-size: 20px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.container {
  display: flex;
  min-height: calc(100vh - 50px);
}

.sidebar {
  width: 240px;
  background: #fff;
  padding: 15px;
  border-right: 1px solid #ddd;
}

.sidebar h3 {
  margin-top: 0;
}

.filter-section {
  margin-bottom: 15px;
}

.filter-list {
  max-height: 120px;
  overflow-y: auto;
  border: 1px solid #ddd;
  padding: 5px;
  background: #fafafa;
}

.filter-list label {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.filter-buttons button {
  margin-right: 5px;
  margin-bottom: 5px;
}

.primary-btn {
  display: block;
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  background: #27ae60;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}

.primary-btn:hover {
  background: #2ecc71;
}

.main-content {
  flex: 1;
  padding: 20px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
}

th {
  background: #2c3e50;
  color: #fff;
  font-weight: normal;
}

td, th {
  padding: 10px;
  border-bottom: 1px solid #eee;
  text-align: left;
}

tr:hover {
  background: #f5faff;
}

tr.selected {
  background: #d9f0ff !important;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid #ddd;
  }
}