.layout-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    background-color: var(--surface-overlay);
    width: 250px;
    user-select: none;
    transition: transform .4s cubic-bezier(.05,.74,.2,.99);
    display: flex;
    flex-direction: column;
    padding: 1rem 0;

    .logo {
        display: flex;
        justify-content: center;
    }

    nav {
        padding: .5rem 1rem 2rem 1rem;
        margin-top: 2rem;
        flex-grow: 1;
        overflow-y: auto;
    }

    .layout-menu {
        list-style: none;
        margin: 0;
        padding: 0;

        li {
            margin-bottom: .25rem;
        }

        > li {
            > button, 
            > a {
                display: flex;
                width: 100%;
                align-items: center;
                padding: .5rem;
                color: var(--surface-900);
                font-weight: 600;
                transition: box-shadow .2s;
                border-radius: var(--border-radius);
    
                &:hover {
                    background-color: var(--surface-hover);
                }

                .menu-icon {
                    width: 2rem;
                    height: 2rem;
                    border-radius: var(--border-radius);
                    margin-right: .5rem;
                    border: 1px solid var(--surface-border);
                    display: inline-flex;
                    align-items: center;
                    justify-content: center;
    
                    i {
                        color: var(--surface-700);
                    }
                }
    
                .menu-toggle-icon {
                    color: var(--surface-600);
                    margin-left: auto;
                }
            }
            
            > div {
                > ol {
                    margin: 0 0 0 1.5rem;
                    padding: .25rem 0 0 .5rem;
                    border-left: 1px solid var(--surface-border);

                    > li {
                        > ol {
                            margin-bottom: 1.5rem;
                        }
                    }
                }
            }
        }

        a.router-link-active {
            background-color: var(--highlight-bg);
            color: var(--highlight-text-color);

            > .menu-icon {
                i {
                    color: var(--highlight-text-color);
                }
            }
        }

        .menu-child-category {
            display: flex;
            padding: .5rem .5rem .5rem 1rem;
            font-size: .875rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--surface-900);
            border-bottom: 1px solid var(--surface-border);
            margin-bottom: .25rem;
        }

        ol {
            list-style: none;
            margin: 0;
            padding: 0;

            a {
                display: flex;
                padding: .5rem .5rem .5rem 1rem;
                color: var(--surface-900);
                border-radius: var(--border-radius);
                transition: box-shadow .2s;
                
                &:focus {
                    outline: 0 none;
                    box-shadow: inset var(--focus-ring);
                }

                &:hover {
                    background-color: var(--surface-hover);
                }
            }
        }
    }
}