.sidebar {
    width: 220px;
    background-color: #ffffff;
    padding: 15px;
    border-right: 1px solid #ddd;
    /*height: 100vh;*/
    font-size: 0.8rem;
}

.menu-item {
    margin-bottom: 2px;
}

.sidebar a,
.sidebar .toggle {
    display: block;
    /*padding: 10px 15px;*/
    padding: 2px;
    color: #222;
    text-decoration: none;
    /*font-weight: 500;*/
    cursor: pointer;
    border-radius: 4px;
    background-color: #ffb442;
    margin-bottom: 2px;
}

    .sidebar a:hover,
    .sidebar .toggle:hover {
        background: #e5e5e5;
        margin-bottom: 2px;
    }

/* Collapsible behaviour */
.sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
    padding-left: 15px;
    margin-bottom: 2px;
}

    .sub-menu.open {
        max-height: 500px;
    }

/* Chevron icon */
.toggle {
    position: relative;
    padding-right: 30px;
}

    .toggle .chevron {
        position: absolute;
        right: 10px;
        top: 50%;
        width: 6px;
        height: 6px;
        border-right: 2px solid #444;
        border-bottom: 2px solid #444;
        transform: translateY(-50%) rotate(45deg);
        transition: transform 0.25s ease;
    }

    .toggle.open .chevron {
        transform: translateY(-50%) rotate(135deg);
    }