/* ─── WAYFINDING MOBILE "< BACK" PILL ────────────────────────────────
   The phone-only surface of the in-app back trail (window._navStack,
   js/nav-history.js). Shown just above the bottom tab bar when the trail is
   non-empty (toggled by _navRenderMobileBackPill), hidden under the
   intake/canvas fullscreen overlays.

   The desktop breadcrumb strip that used to render the trail under the top
   bar was removed 2026-08-06 (Focus chrome refinement); the trail itself
   still powers navPop returns everywhere. */
.nav-back-pill-mobile {
    position: fixed;
    left: 12px;
    bottom: 68px;
    z-index: calc(var(--z-topbar) - 1);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 12px;
    border: 1px solid var(--border-light);
    border-radius: 999px;
    background: var(--bg-elevated);
    color: var(--charcoal);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.8rem;
    box-shadow: 0 2px 8px var(--shadow-sm);
    cursor: pointer;
}

.nav-back-pill-mobile svg { width: 14px; height: 14px; }