body {
    background-color: #f8f9fa;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.sidebar {
    background-color: #2c3e50;
    color: #fff;
    padding: 15px;
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 250px;
    z-index: 1000;
    overflow-y: auto;
}
.sidebar .nav-link {
    color: #fff !important;
    padding: 10px 15px;
    display: flex;
    align-items: center;
}
.sidebar .nav-link:hover {
    background-color: #34495e;
}
.sidebar .nav-link i {
    margin-right: 10px;
}
.content {
    margin-left: 250px;
    padding: 20px;
    background-color: #fff;
}
.table {
    background-color: #fff;
    border: 1px solid #dee2e6;
}
.table th, .table td {
    border: 1px solid #dee2e6;
    padding: 8px;
}
.text-muted {
    color: #6c757d !important;
}