def test_keyboard_focus_and_escape_hooks_exist(client):
    response = client.get("/")
    assert response.status_code == 200
    html = response.text
    assert "*:focus-visible" in html
    assert '@keydown.escape.window="closeSummary()"' in html
    assert "function policyDisclosures()" in html


def test_icon_controls_and_labels_exist(client):
    response = client.get("/")
    html = response.text
    assert 'aria-label="Copy article link"' in html
    assert 'aria-label="Back to top"' in html
    assert "function backToTopIsland()" in html


def test_policy_modal_accessibility_contract(client):
    response = client.get("/")
    html = response.text
    assert 'role="dialog"' in html
    assert 'aria-modal="true"' in html
    assert 'aria-label="Close policy modal"' in html