/* =========================================================
   SITE MENU V6 — FULL-WIDTH SLIDE SURFACE

   - navbar never changes positioning
   - root document scroll is never modified
   - full-width WHITE menu surface slides in/out
   - page-container inside preserves responsive gutters
   ========================================================= */


/* ---------- MASK / VIEWPORT ---------- */

.site-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;

    width: 100%;
    height: calc(100dvh - var(--navbar-height));

    box-sizing: border-box;
    overflow: hidden;

    visibility: hidden;
    pointer-events: none;

    transition:
        visibility 0s linear 0.40s;
}

.site-menu.is-open {
    visibility: visible;
    pointer-events: auto;

    transition:
        visibility 0s linear 0s;
}


/* ---------- FULL-WIDTH SLIDING SURFACE ---------- */

.site-menu-surface {
    width: 100%;
    height: 100%;

    box-sizing: border-box;

    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;

    background: var(--surface-page);

    transform: translateY(-100%);

    transition:
        transform 0.40s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-menu.is-open .site-menu-surface {
    transform: translateY(0);

    transition-duration: 0.34s;
    transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}


/*
   Navbar stays structurally unchanged.
*/

.site-navbar.is-menu-open {
    border-bottom-color: transparent;
}


/* ---------- CONTENT / GUTTERS ---------- */

.site-menu-inner {
    min-height: 100%;
    box-sizing: border-box;

    /*
       Width is intentionally NOT declared here.
       .page-container keeps the global 40px Compact gutters
       (and the responsive gutter system above 610px).
    */
    padding-top: 12px;
    padding-bottom: calc(32px + env(safe-area-inset-bottom));
}

.site-menu-nav {
    width: 100%;
}


/* ---------- GROUPS ---------- */

.site-menu-group + .site-menu-group {
    margin-top: 42px;
}

.site-menu-group-title {
    margin: 0;
    padding: 0 0 10px;

    border-bottom: 1px solid #00000028;

    font-family: var(--secondary-font);
    font-size: var(--font-size-S);
    font-weight: var(--weight-semibold);
    line-height: 1.2;
    letter-spacing: 0.01em;

    color: var(--secondary-color);
    text-transform: uppercase;
}

.site-menu-links {
    display: flex;
    flex-direction: column;

    gap: 16px;
    margin-top: 24px;
}


/* ---------- LINKS ---------- */

.site-menu-link {
    display: block;
    min-width: 0;

    font-family: var(--secondary-font);
    font-size: 24px;
    font-weight: var(--weight-regular);
    line-height: 1.25;

    color: var(--primary-color);
    text-decoration: none;

    transition: color 0.18s ease;
}

.site-menu-link--row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;

    gap: 24px;
}

.site-menu-link-meta {
    flex: 0 0 auto;

    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.site-menu-link:hover,
.site-menu-link:focus-visible {
    color: var(--secondary-color);
}

.site-menu-link:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 5px;
}

.site-menu-link[aria-current="page"] {
    text-decoration: none;
}


/* ---------- TOGGLE ---------- */

.site-navbar-menu-icon {
    user-select: none;
    -webkit-user-select: none;
}


/* ---------- REDUCED MOTION ---------- */

@media (prefers-reduced-motion: reduce) {
    .site-menu,
    .site-menu-surface {
        transition: none;
    }
}