:root {
    --bg: #f5f6fa;
    --menu-bg: #E0E0E0;
    --menu-hover: rgb(96, 148, 233);
    --text: #2081B4;
    --sub-text: #2081B4;
    --accent: #60a5fa;
}

.topbar {
    /* position: sticky; */
    top: 0;
    z-index: 1000;
    background: var(--menu-bg);
    color: var(--text);
    /* padding: 12px 20px; */
    padding: .5rem;
}

.menu {
    list-style: none;
    display: flex;
    gap: .2rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 0;
    padding: 1px;
}

.menu-item {
    position: relative;
    z-index: 1;
}

.menu-item.is-open {
    z-index: 30;
}

.menu-title {
    display: block;
    padding: .5rem;
    font-weight: 500;
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
}

.menu-title:hover,
.menu-title:focus {
    background: var(--menu-hover);
    outline: none;
    text-decoration: none;
}

.submenu {
    font-size: 12px;
    list-style: none;
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    min-width: 200px;
    max-width: calc(100vw - 16px);
    background: var(--menu-bg);
    border-radius: 8px;
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    z-index: 40;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
    transition:
        opacity 0.2s ease,
        visibility 0.2s ease;
}

.menu-item>.submenu {
    max-height: min(70vh, 420px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

li.is-open>.submenu {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.submenu li {
    position: relative;
    z-index: 1;
}

.submenu li.has-children.is-open {
    z-index: 50;
}

.menu-item.has-children>.menu-title::after {
    content: "▾";
    /* margin-left: 8px; */
    color: var(--text);
}

.submenu li.has-children>a::after {
    content: "▸";
    float: right;
    color: var(--text);
}

.submenu li.has-children>.submenu {
    position: fixed;
    top: 0;
    left: 0;
    right: auto;
    max-height: min(70vh, 420px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.menu-item>.submenu.open-up {
    top: auto;
    bottom: calc(100% + 8px);
}

.submenu li.has-children>.submenu.open-up {
    top: auto;
    bottom: 0;
}

.menu-item>.submenu.align-right {
    left: auto;
    right: 0;
}

.submenu li.has-children>.submenu.open-left {
    left: auto;
    right: calc(100% + 6px);
}

.submenu li.has-children.is-open>.submenu {
    opacity: 1;
    visibility: visible;
}

.submenu::-webkit-scrollbar {
    width: 10px;
}

.submenu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.submenu::-webkit-scrollbar-track {
    background: transparent;
}

.submenu a {
    display: block;
    color: var(--sub-text);
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 6px;
    border-left: 3px solid transparent;
}

.submenu a:hover {
    color: var(--text);
    background: var(--menu-hover);
    border-left-color: var(--accent);
}

.menu-link.readonly-item {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.menu-link .menu-icon {
    margin-right: 4px;
    color: var(--text);
}

li.is-hidden {
    display: none !important;
}

.content {
    padding: 20px;
}