body {
    background-color: #f8f9fa;
}

.navbar-brand {
    font-weight: bold;
}

table th {
    background-color: #212529;
    color: white;
}

/*sidebar*/
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 220px;
    height: 100vh;
    background-color: #212529;
    color: white;
    padding: 20px 15px;
    overflow-y: auto;
}

.sidebar-title {
    color: white;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.1rem;
}

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

.sidebar-nav li {
    margin-bottom: 8px;
}

.sidebar-nav li a {
    display: block;
    color: #ced4da;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.sidebar-nav li a:hover {
    background-color: #343a40;
    color: white;
}

.main-content {
    margin-left: 220px;
    padding: 20px;
}