aside {
    background-color: #002f84;
    padding: 15px;
    border-radius: 8px;
    color: #ffffff;
}

    aside h4 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 10px;
        color: #e6007e;
    }

.nav.flex-column {
    padding: 0;
    margin: 0;
}

.nav-link {
    color: #1a3d6d;
    background-color: transparent;
    padding: 8px 15px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    font-weight: 500;
    font-size: 14px;
}

    .nav-link:hover {
        background-color: #3a5bb5;
        color: #ffffff;
    }

    .nav-link.active {
        background-color: #002f84;
        color: #ffffff;
        font-weight: 600;
    }

@media (max-width: 768px) {
    aside {
        padding: 10px;
        border-radius: 0;
        text-align: center;
    }

    .nav.flex-column {
        display: none;
    }

        .nav.flex-column.show {
            display: flex;
        }

    .sidenav-toggle {
        background-color: #ffffff;
        color: #002f84;
        border: none;
        padding: 8px 12px;
        border-radius: 5px;
        width: 100%;
        text-align: center;
        font-weight: 600;
        margin-bottom: 10px;
    }

        .sidenav-toggle:focus {
            outline: none;
            box-shadow: none;
        }

    @media (max-width: 768px) {
        .nav-link {
            font-size: 14px;
            padding: 8px 10px;
        }
    }
}