/* Matter navigation shares the topbar's space instead of adding another row. */
.topbar.topbar-matter { gap: 16px; }
.matter-topbar-navigation { display: flex; align-items: center; gap: 22px; flex: 1; min-width: 0; }
.matter-back-button { flex-shrink: 0; white-space: nowrap; font-size: 13px; }
.matter-back-button svg { width: 17px; height: 17px; }
.matter-topbar-path { display: flex; align-items: center; gap: 9px; min-width: 0; color: #52637b; font-size: 13px; line-height: 1.45; }
.matter-topbar-path > a:first-child { color: inherit; text-decoration: none; flex-shrink: 0; }
.matter-topbar-path > svg { width: 15px; height: 15px; flex-shrink: 0; }
.matter-topbar-path .matter-topbar-current { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #15263c; font-weight: 650; text-decoration: none; }
.matter-topbar-path a:hover { text-decoration: underline; }
.matter-topbar-path a:focus-visible, .matter-back-button:focus-visible { outline: 2px solid #128b99; outline-offset: 4px; }
@media (max-width: 820px) {
    .main-column > .topbar.topbar-matter { flex-wrap: wrap; gap: 12px; height: auto; min-height: 60px; padding: 12px 16px; }
    .matter-topbar-navigation { flex: 1 1 100%; gap: 12px; }
    .matter-back-button { min-height: 36px; padding: 8px 10px; font-size: 12px; }
    .matter-topbar-path { gap: 5px; font-size: 12px; }
}