:root {
    --sidebar-width: max(14vw, 160px);
    --sidebar-padding: 2em;
}

.sidebar {
    height: calc(100vh - 1em);
    width: var(--sidebar-width);
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: var(--sidebar-bg, #eee);
    overflow-x: hidden;
    padding: 0.5em var(--sidebar-padding);

    border-top-right-radius: 15px;
    border-bottom-right-radius: 15px;

    transition: width 0.28s cubic-bezier(.4, 0, .2, 1),
        padding 0.28s cubic-bezier(.4, 0, .2, 1),
        background-color 0.3s;

    display: flex;
    flex-direction: column;
    justify-content: start;
    gap: 2em;
}

.sidebar>* {
    transition: opacity 0.1s ease;
}

.sidebar.collapsed>* {
    opacity: 0;
}

.sidebar:not(.collapsed)>* {
    transition: opacity 0.1s ease 0.2s;
}

.sidebar.collapsed {
    width: 0;
    min-width: 0;
    padding: 0;
}

.sidebar-anchor {
    position: fixed;
    left: calc(var(--sidebar-width) + var(--sidebar-padding) * 2);
    top: 50vh;
    transform: translateY(-50%);
    z-index: 2;
    transition: left 0.28s cubic-bezier(.4, 0, .2, 1);
}

.sidebar-anchor.collapsed {
    left: 0;
}

.toggle-btn {
    background-color: var(--sidebar-bg, #eee);
    border-color: transparent !important;
    border-left: none;
    border-radius: 0 4px 4px 0;
    padding: 0.7em 0.1em;
}

.main {
    margin-left: calc(var(--sidebar-width) + var(--sidebar-padding));
    padding: 0 2em 0 2em;
    transition: margin-left 0.28s cubic-bezier(.4, 0, .2, 1);
}

.sidebar.collapsed~.main {
    margin-left: 0;
}

@media (max-width: 768px) {
    .main {
        padding: 0.5em;
    }

    .sidebar {
        margin: 0;
        width: calc(100vw - 6em);
        height: 100vh;
    }

    .sidebar-anchor {
        left: calc(100vw - 2em);
    }

    #watermark {
        top: calc(100vh - 4em);
    }
}

.dark .sidebar {
    background-color: #2c2c2c;
}

.dark .toggle-btn {
    background-color: #2c2c2c;
}

.config>label {
    font-size: 14px;
    font-weight: 300;
    user-select: none;
}