side-menu-item-style.js

import {css} from "lit";
// language=CSS
export const sideMenuItemStyle = css`
    :host {
        --item-padding: 1rem;
        --item-content-padding: 1rem;
        --icon-height: 2rem;
        --icon-width: 2rem;
        --item-selected-color: rgba(235, 89, 5, 0.1);
        --item-color-active: rgba(26, 26, 26, 0.2);
        --item-color-hover: rgba(26, 26, 26, 0.1);
        --item-border-radius: 5px;

        --item-text-color: hsla(214, 40%, 16%, 0.94);
        --item-icon-color: hsla(214, 45%, 20%, 0.5);
        --item-selected-color-text: rgb(235, 89, 5);
        --font-family: "Segoe UI", "Roboto", -apple-system, Helvetica, Arial, sans-serif;
        --item-font-size: 1rem;
        --item-font-weight: 600;

        --sub-item-font-size: 0.85rem;
        --sub-item-font-weight: 500;

        --overlay-box-shadow: 0 2px 4px -1px hsla(214, 53%, 23%, 0.16), 0 3px 12px -1px hsla(214, 50%, 22%, 0.26);
        --overlay-background-color: white;

        --spacing: 4px;

        font-family: var(--font-family);
        display: flex;
        overflow: hidden;
        flex-direction: column;
        border-radius: var(--item-border-radius);
    }

    #itemLink {
        align-items: center;
        font-size: var(--item-font-size);
        font-weight: var(--item-font-weight, 600);
        height: var(--icon-height);
        transition: background-color 200ms;
        padding: var(--item-padding);
        cursor: pointer;
        display: inline-flex;
        flex-grow: 1;
        align-items: center;
        overflow: hidden;
        text-decoration: none;
    }

    #itemLink:hover {
        background-color: var(--item-color-hover);
    }

    #itemLink:active {
        background-color: var(--item-color-active);
    }

    #content {
        padding-left: var(--item-content-padding);
        flex: 1;
    }

    :host([compact]) #content {
        padding-left: 0;
        display: none;
    }

    :host([selected]) #itemLink {
        background-color: var(--item-selected-color);
        color: var(--item-selected-color-text);
    }

    :host([selected]) slot[name="icon"]::slotted(*) {
        color: var(--item-selected-color-text);
    }

    :host(:not([selected])) #itemLink {
        color: var(--item-text-color);
    }

    :host([expanded]) {
        background-color: var(--item-selected-color);
    }

    :host([hasSelectedChild]) {
        background-color: var(--item-selected-color);
    }

    :host span {
        cursor: inherit;
        overflow: hidden;
        text-overflow: ellipsis;
        user-select: none;
        -webkit-user-select: none;
        white-space: nowrap;
    }

    slot[name="icon"]::slotted(*) {
        flex-shrink: 0;
        color: var(--item-icon-color);
        height: var(--icon-height);
        width: var(--icon-width);
        pointer-events: none;
    }

    #collapse-button {
        float: right;
    }

    :host([compact]) #itemLink[level]:not([level="0"]) {
        padding: calc(var(--item-padding) / 2);
    }

    :host(:not([compact])) #itemLink[level]:not([level="0"]) {
        padding-left: calc(var(--icon-width) + var(--item-content-padding));
    }

    #itemLink[level]:not([level="0"]) #content {
        display: block;
        visibility: visible;
        width: auto;
        font-weight: var(--sub-item-font-weight, 500);
        font-size: var(--sub-item-font-size);
    }

    #overlay {
        display: block;
        left: 101%;
        min-width: 200px;
        padding: 4px 2px;
        background-color: var(--overlay-background-color);
        background-image: var(--overlay-background-image, none);
        box-shadow: var(--overlay-box-shadow);
        border: 1px solid var(--overlay-background-color);
        border-left: 0;
        border-radius: 0 3px 3px 0;
        position: absolute;
        z-index: 1;
        animation: pop 200ms forwards;
    }

    @keyframes pop {
        0% {
            transform: translateX(-5px);
            opacity: 0.5;
        }
        100% {
            transform: translateX(0);
            opacity: 1;
        }
    }
`;