/* Layout helpers only. Sidebar colors now come from the compiled native Filament theme. */
.topbar-header-button {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0.85rem;
    font: inherit; font-size: 0.875rem; line-height: 1.5;
    color: var(--masar-text); background: var(--masar-surface);
    border: 1px solid var(--masar-border); border-radius: 0.6rem;
    text-decoration: none; margin-inline-start: 0.75rem; white-space: nowrap;
}
.topbar-header-button:hover { color: var(--primary-600); background: var(--masar-hover); }
.topbar-header-button svg { width: 1rem; height: 1rem; flex-shrink: 0; }