:where(body[data-page="/ai/checker/"]) {
    margin: 0;
    background: #f3f5f0;
    color: #202821;
    font-family: "Segoe UI", Arial, sans-serif;
    line-height: 1.55;
}

:where(body[data-page="/ai/checker/"]) .checker-app,
:where(body[data-page="/ai/checker/"]) .checker-app * { box-sizing: border-box; }
:where(body[data-page="/ai/checker/"]) .checker-app [hidden] { display: none !important; }
:where(body[data-page="/ai/checker/"]) .checker-app {
    --paper: #fff;
    --ink: #202821;
    --muted: #68746a;
    --line: #e3e8e0;
    --accent: #367251;
    --accent-dark: #254c37;
    --accent-soft: #edf3eb;
    --accent-border: #a9c6ad;
    min-height: 100vh;
    background: #f3f5f0;
    color: var(--ink);
}
:where(body[data-page="/ai/checker/"]) .checker-shell { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding-bottom: 36px; }
:where(body[data-page="/ai/checker/"]) .skip-link { position: absolute; z-index: 20; top: 8px; left: 8px; padding: 8px 12px; transform: translateY(-160%); border-radius: 6px; background: #fff; color: #254c37; }
:where(body[data-page="/ai/checker/"]) .skip-link:focus { transform: translateY(0); }
:where(body[data-page="/ai/checker/"]) .checker-topbar { display: flex; min-height: 72px; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); }
:where(body[data-page="/ai/checker/"]) .checker-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 17px; font-weight: 800; text-decoration: none; }
:where(body[data-page="/ai/checker/"]) .checker-brand-mark { display: flex; width: 28px; height: 28px; align-items: end; gap: 3px; padding: 6px; border-radius: 8px; background: var(--accent); }
:where(body[data-page="/ai/checker/"]) .checker-brand-mark i { width: 4px; border-radius: 3px; background: #fff; }
:where(body[data-page="/ai/checker/"]) .checker-brand-mark i:nth-child(1) { height: 8px; }
:where(body[data-page="/ai/checker/"]) .checker-brand-mark i:nth-child(2) { height: 14px; }
:where(body[data-page="/ai/checker/"]) .checker-brand-mark i:nth-child(3) { height: 10px; }
:where(body[data-page="/ai/checker/"]) .checker-tagline { margin: 0; color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
:where(body[data-page="/ai/checker/"]) .checker-hero { padding: 32px 0 15px; }
:where(body[data-page="/ai/checker/"]) .checker-eyebrow,
:where(body[data-page="/ai/checker/"]) .checker-kicker { margin: 0; color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: 1.1px; }
:where(body[data-page="/ai/checker/"]) .checker-hero h1 { margin: 10px 0 12px; color: var(--ink); font-size: clamp(32px, 4vw, 48px); font-weight: 800; line-height: 1.1; letter-spacing: -.04em; }
:where(body[data-page="/ai/checker/"]) .checker-lead { max-width: 1000px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.65; }
:where(body[data-page="/ai/checker/"]) .checker-seo-copy { max-width: 1060px; margin: 10px 0 0; color: #566259; font-size: 14px; line-height: 1.65; }
:where(body[data-page="/ai/checker/"]) .checker-breadcrumbs { margin-top: 17px; }
:where(body[data-page="/ai/checker/"]) .checker-breadcrumbs ol { display: flex; min-width: 220px; flex: 1 1 auto; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0; padding: 0; list-style: none; }
:where(body[data-page="/ai/checker/"]) .checker-breadcrumbs li + li::before { margin-right: 6px; color: var(--muted); content: "/"; }
:where(body[data-page="/ai/checker/"]) .checker-breadcrumbs a { display: inline-flex; min-height: 34px; align-items: center; padding: 5px 12px; border: 1px solid var(--accent-border); border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-size: 13px; font-weight: 650; text-decoration: none; }
:where(body[data-page="/ai/checker/"]) .checker-breadcrumbs li[aria-current="page"] { color: var(--muted); font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .checker-intro-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 12px; margin: 10px 0 5px; }
:where(body[data-page="/ai/checker/"]) .checker-mode-note { color: var(--muted); font-size: 12px; }
:where(body[data-page="/ai/checker/"]) .checker-button { min-height: 42px; padding: 9px 15px; border: 1px solid transparent; border-radius: 9px; cursor: pointer; font: inherit; font-size: 14px; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-button--secondary { border-color: var(--line); background: var(--paper); color: var(--accent-dark); }
:where(body[data-page="/ai/checker/"]) .checker-button--primary { border-color: var(--accent-dark); background: var(--accent-dark); color: #fff; }
:where(body[data-page="/ai/checker/"]) .checker-button--cancel { border-color: #b94b44; background: #fff5f4; color: #9c2c27; }
:where(body[data-page="/ai/checker/"]) .checker-app button:hover:not(:disabled) { filter: brightness(.97); }
:where(body[data-page="/ai/checker/"]) .checker-app button:disabled { cursor: not-allowed; opacity: .58; }
:where(body[data-page="/ai/checker/"]) .checker-app :focus-visible { outline: 3px solid rgb(54 114 81 / 30%); outline-offset: 2px; }
:where(body[data-page="/ai/checker/"]) .checker-panel { margin: 0 0 17px; padding: clamp(18px, 2.2vw, 28px); border: 1px solid var(--line); border-radius: 17px; background: var(--paper); box-shadow: 0 10px 30px rgb(28 44 32 / 5%); }
:where(body[data-page="/ai/checker/"]) .checker-panel-heading { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; margin-bottom: 10px; }
:where(body[data-page="/ai/checker/"]) .checker-panel-heading h2 { margin: 6px 0 0; color: var(--ink); font-size: clamp(21px, 2.4vw, 27px); line-height: 1.2; }
:where(body[data-page="/ai/checker/"]) .checker-badge { display: inline-flex; align-items: center; padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; background: #fafbf8; color: var(--muted); font-size: 12px; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-privacy-note { margin: 0 0 16px; padding: 11px 13px; border-left: 3px solid var(--accent); border-radius: 5px; background: var(--accent-soft); color: #344a39; font-size: 13px; line-height: 1.55; }
:where(body[data-page="/ai/checker/"]) .checker-provider-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
:where(body[data-page="/ai/checker/"]) .provider-card { min-width: 0; margin: 0; padding: 15px; border: 1px solid var(--line); border-radius: 12px; background: #fcfdfb; }
:where(body[data-page="/ai/checker/"]) .provider-card legend { max-width: 100%; padding: 0 6px; color: var(--ink); font-size: 15px; font-weight: 750; }
:where(body[data-page="/ai/checker/"]) .provider-label { display: block; margin: 5px 0 4px; color: #4b584e; font-size: 12px; font-weight: 650; }
:where(body[data-page="/ai/checker/"]) .provider-key-list { display: grid; gap: 7px; }
:where(body[data-page="/ai/checker/"]) .provider-key-row { display: grid; grid-template-columns: minmax(0, 1fr) 32px; align-items: end; gap: 5px; }
:where(body[data-page="/ai/checker/"]) .provider-key-row .provider-label { grid-column: 1 / -1; }
:where(body[data-page="/ai/checker/"]) .provider-key-input,
:where(body[data-page="/ai/checker/"]) .provider-account-id { width: 100%; min-height: 40px; padding: 8px 10px; border: 1px solid #cbd4ca; border-radius: 7px; background: #fff; color: var(--ink); font: inherit; font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .provider-key-input:focus,
:where(body[data-page="/ai/checker/"]) .provider-account-id:focus { border-color: var(--accent); outline: 2px solid rgb(54 114 81 / 15%); }
:where(body[data-page="/ai/checker/"]) .provider-remove-key { width: 32px; height: 38px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: #7d3935; cursor: pointer; font-size: 21px; line-height: 1; }
:where(body[data-page="/ai/checker/"]) .provider-add-key { margin-top: 9px; padding: 5px 0; border: 0; background: transparent; color: var(--accent-dark); cursor: pointer; font: inherit; font-size: 12px; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 20px; }
:where(body[data-page="/ai/checker/"]) .checker-progress-wrap { margin-top: 14px; }
:where(body[data-page="/ai/checker/"]) .checker-progress-label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
:where(body[data-page="/ai/checker/"]) .checker-progress-wrap progress { display: block; width: 100%; height: 11px; accent-color: var(--accent); }
:where(body[data-page="/ai/checker/"]) .checker-status { min-height: 1.5em; margin: 12px 0 0; color: var(--muted); font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .checker-error { margin: 8px 0 0; padding: 10px 12px; border: 1px solid #efb6b1; border-radius: 8px; background: #fff2f0; color: #8e2822; font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .checker-legend { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
:where(body[data-page="/ai/checker/"]) .checker-dot { display: inline-block; width: 11px; height: 11px; flex: 0 0 11px; border-radius: 2px; background: #8a938c; }
:where(body[data-page="/ai/checker/"]) .checker-dot--valid { background: #1c9a50; }
:where(body[data-page="/ai/checker/"]) .checker-dot--invalid { background: #d3423b; }
:where(body[data-page="/ai/checker/"]) .checker-table-wrap { overflow-x: auto; }
:where(body[data-page="/ai/checker/"]) .checker-table { width: 100%; border-collapse: collapse; font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .checker-table th,
:where(body[data-page="/ai/checker/"]) .checker-table td { padding: 10px 11px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
:where(body[data-page="/ai/checker/"]) .checker-table th { background: #f6f8f4; color: #4a574d; font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--valid { color: #146f38; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--valid .checker-dot { background: #1c9a50; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--invalid { color: #a5221d; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--invalid .checker-dot { background: #d3423b; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--forbidden,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--limited,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--unavailable,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--network_error { color: #725314; }
:where(body[data-page="/ai/checker/"]) .checker-result-badge--forbidden .checker-dot,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--limited .checker-dot,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--unavailable .checker-dot,
:where(body[data-page="/ai/checker/"]) .checker-result-badge--network_error .checker-dot { background: #e2a72f; }
:where(body[data-page="/ai/checker/"]) .checker-empty,
:where(body[data-page="/ai/checker/"]) .checker-result-note { color: var(--muted); font-size: 13px; }
:where(body[data-page="/ai/checker/"]) .checker-result-note { margin: 12px 0 0; padding: 10px 12px; border-radius: 8px; background: var(--accent-soft); color: var(--accent-dark); }
:where(body[data-page="/ai/checker/"]) .checker-seo-details,
:where(body[data-page="/ai/checker/"]) .checker-faq { margin: 22px 0 10px; color: #58645a; }
:where(body[data-page="/ai/checker/"]) .checker-seo-details h2,
:where(body[data-page="/ai/checker/"]) .checker-faq h2 { margin: 0 0 10px; color: var(--ink); font-size: 20px; }
:where(body[data-page="/ai/checker/"]) .checker-seo-details p,
:where(body[data-page="/ai/checker/"]) .checker-seo-details li,
:where(body[data-page="/ai/checker/"]) .checker-faq p { font-size: 13px; line-height: 1.7; }
:where(body[data-page="/ai/checker/"]) .checker-seo-details ul { display: grid; gap: 6px; padding-left: 20px; }
:where(body[data-page="/ai/checker/"]) .checker-faq details { margin: 8px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); }
:where(body[data-page="/ai/checker/"]) .checker-faq summary { color: var(--ink); cursor: pointer; font-size: 14px; font-weight: 700; }
:where(body[data-page="/ai/checker/"]) .checker-faq p { margin: 9px 0 0; }
:where(body[data-page="/ai/checker/"]) .checker-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding: 16px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
:where(body[data-page="/ai/checker/"]) .checker-dialog { width: min(650px, calc(100vw - 32px)); max-height: min(85vh, 760px); padding: 0; overflow: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); color: var(--ink); box-shadow: 0 22px 70px rgb(20 31 23 / 24%); }
:where(body[data-page="/ai/checker/"]) .checker-dialog::backdrop { background: rgb(20 29 22 / 60%); }
:where(body[data-page="/ai/checker/"]) .checker-dialog--error { border-color: #dfb2ae; }
:where(body[data-page="/ai/checker/"]) .checker-dialog--error .checker-kicker { color: #a3312a; }
:where(body[data-page="/ai/checker/"]) .checker-dialog-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 20px 22px 14px; border-bottom: 1px solid var(--line); }
:where(body[data-page="/ai/checker/"]) .checker-dialog-heading h2 { margin: 5px 0 0; font-size: 22px; line-height: 1.2; }
:where(body[data-page="/ai/checker/"]) .checker-dialog-close { width: 36px; height: 36px; flex: 0 0 36px; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); cursor: pointer; font-size: 25px; line-height: 1; }
:where(body[data-page="/ai/checker/"]) .checker-dialog-content { padding: 16px 22px 21px; color: #4e5b51; font-size: 14px; line-height: 1.65; }
:where(body[data-page="/ai/checker/"]) .checker-dialog-content ul { display: grid; gap: 8px; padding-left: 21px; }
:where(body[data-page="/ai/checker/"]) .checker-dialog-note { padding: 10px 12px; border-radius: 8px; background: var(--accent-soft); color: var(--accent-dark); font-size: 12px; }
:where(html[data-extratools-theme="blue"]) body[data-page="/ai/checker/"] .checker-app { --accent: #3579bd; --accent-dark: #22527f; --accent-soft: #eaf3fb; --accent-border: #9fc2e0; }
:where(html[data-extratools-theme="red"]) body[data-page="/ai/checker/"] .checker-app { --accent: #c6534b; --accent-dark: #87332d; --accent-soft: #fff0ee; --accent-border: #e3aaa5; }