:root {
    --wa-topbar-height: 74px;
    --wa-toc-gap: 16px;
}

/* =========================================================
   SHARED TOC SHELL
   ========================================================= */

:root {
    --wa-topbar-height: 74px;
    --wa-toc-gap: 16px;
    --wa-toc-rail-gutter: 1.35rem;
}

.wa-toc__sticky {
    position: sticky;

    display: flex;
    flex-direction: column;
    overflow: hidden;

    top: calc(var(--wa-topbar-height) + var(--wa-toc-gap));

    height: calc(100dvh - var(--wa-topbar-height) - var(--wa-toc-gap) - var(--wa-toc-gap));

    max-height: none;

    box-sizing: border-box;

    transition:
        top 140ms ease,
        height 140ms ease;
}

body:has(.topbar-wrap.is-hidden) .wa-toc__sticky {
    top: var(--wa-toc-gap);

    height: calc(100dvh - var(--wa-toc-gap) - var(--wa-toc-gap));

    transition-delay: 100ms;
}


/* =========================================================
   FIXED TOP
   ========================================================= */

.wa-toc__header {
    flex: 0 0 auto;

    margin-bottom: 1rem;
}


.wa-toc__site {
    display: block;

    margin-bottom: 0.35rem;

    color: var(--green);

    font-size: 0.62rem;
    font-weight: 900;
    line-height: 1;

    letter-spacing: 0.12em;
    text-transform: uppercase;

    text-decoration: none;
}


.wa-toc__title {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 0.75rem;

    color: var(--white);

    font-size: 1.05rem;
    font-weight: 850;
    line-height: 1.15;

    text-decoration: none;
}


.wa-toc__title>span:last-child {
    color: var(--muted);

    font-size: 0.7rem;
    font-weight: 700;
}


.wa-toc__site:hover,
.wa-toc__title:hover {
    color: var(--white);
}


.wa-toc__header p {
    max-width: 22ch;

    margin: 0.45rem 0 0;

    color: var(--muted);

    font-size: 0.73rem;
    line-height: 1.4;
}


/* =========================================================
   SCROLLABLE MIDDLE
   ========================================================= */

.wa-toc__body {
    position: relative;

    flex: 1 1 auto;
    min-height: 0;

    overflow: hidden;
}


.wa-toc__scroll {
    height: 100%;
    min-height: 0;

    overflow-y: auto;
    overscroll-behavior: contain;

    /*
     * Extend the actual scrolling viewport back to the track,
     * then inset its contents again.
     * This leaves physical room for the active rail.
     */
    margin-left: calc(-1 * var(--wa-toc-rail-gutter));
    padding-left: var(--wa-toc-rail-gutter);

    padding-right: 0.35rem;
    padding-bottom: 1.5rem;

    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
}

.wa-toc [data-toc-target] {
    position: relative;
}

.wa-toc [data-toc-target]::before {
    left: -0.07rem;
}

/* =========================================================
   MORE-BELOW CUE
   ========================================================= */

.wa-toc__more {
    position: absolute;

    left: 0;
    right: 0;
    bottom: 0;

    display: flex;
    align-items: flex-end;
    justify-content: center;

    height: 34px;

    padding-bottom: 0.1rem;

    background:
        linear-gradient(to bottom,
            transparent,
            var(--bg) 72%);

    color: var(--green);

    font-size: 0.82rem;
    font-weight: 800;

    pointer-events: none;

    opacity: 0;
    transform: translateY(-3px);

    transition:
        opacity 160ms ease,
        transform 160ms ease;
}


.wa-toc__body.has-more .wa-toc__more {
    opacity: 0.82;
    transform: translateY(0);
}


/* =========================================================
   FIXED BOTTOM
   ========================================================= */

.wa-toc__footer {
    flex: 0 0 auto;

    margin-top: 0.75rem;
    padding-top: 0.9rem;

    border-top: 1px solid var(--line-soft);
}


.wa-toc__footer nav {
    display: grid;
    gap: 0.15rem;

    margin-top: 0.35rem;
}


.wa-toc__footer a {
    display: flex;
    align-items: center;

    gap: 0.5rem;

    padding: 0.3rem 0;

    color: var(--muted);

    font-size: 0.7rem;
    font-weight: 650;
    line-height: 1.2;

    text-decoration: none;
}


.wa-toc__footer a:hover {
    color: var(--white);
}


.wa-toc__footer a>span {
    width: 0.75rem;

    color: var(--green);

    font-size: 0.62rem;
    text-align: center;
}

/* =========================================================
   TOPBAR — AUTO HIDE ON NAV PAGES
   ========================================================= */

.topbar-wrap {
    position: sticky;
    top: 0;
    z-index: 100;

    transform: translateY(0);

    transition: transform 220ms ease;

    will-change: transform;
}

.topbar-wrap.is-hidden {
    transform: translateY(-100%);
}