/* ─── Responsive ─── */
@media (max-width: 768px) {
    .sidebar-toggle {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: none;
    }

    .sidebar--open {
        transform: translateX(0);
        box-shadow: 4px 0 12px rgba(0,0,0,0.1);
    }

    .site-content,
    .site-footer {
        margin-left: 0;
    }

    .site-content {
        padding: 1.5rem 1rem;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.3);
        z-index: 40;
    }

    .sidebar-overlay--visible {
        display: block;
    }
}