body {
    font-family: Arial, sans-serif;
    padding-top: 56px; /* space for fixed navbar */
}
.card {
    transition: transform 0.2s;
}
.card:hover {
    transform: scale(1.02);
}
.btn-action {
    margin: 5px;
}

/* Sidebar layout */
#sidebar {
    position: fixed;
    top: 0;
    left: -250px;
    width: 250px;
    height: 100%;
    background-color: #343a40;
    overflow-y: auto;
    transition: left 0.3s ease;
    padding-top: 56px; /* height of top navbar */
    z-index: 1040;
}

#sidebar.show {
    left: 0;
}

#sidebar .nav-link {
    color: #fff;
}

#sidebar .nav-link:hover {
    background-color: #495057;
}