.inv-pop-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;z-index:99998}
    .inv-pop{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%) scale(.98);
      background:#ffffff;color:#0f172a;max-width:520px;width:92%;border-radius:16px;
      box-shadow:0 12px 48px rgba(2,6,23,.15);overflow:hidden;z-index:99999;
      display:none;opacity:0;transition:opacity .2s, transform .2s}
    .inv-pop.show{display:block;opacity:1;transform:translate(-50%,-50%) scale(1)}
    .inv-close{position:absolute;right:10px;top:10px;border:0;background:transparent;
      color:#334155;font-size:22px;cursor:pointer;line-height:1;padding:6px}
    .inv-hero{display:block;width:100%;height:auto;object-fit:cover;background:#f1f5f9}
    .inv-body{padding:20px}
    .inv-h1{margin:0 0 6px;font-weight:800;font-size:22px}
    .inv-sub{margin:0 0 14px;color:#475569}
    .inv-cta{display:block;text-align:center;text-decoration:none;background:#0b66e7;color:#fff;
      padding:12px 14px;border-radius:12px;font-weight:800}
    .inv-cta:focus{outline:3px solid #bae6fd;outline-offset:2px}
    @media (min-width:480px){ .inv-h1{font-size:24px} }
    @media (prefers-reduced-motion: reduce){ .inv-pop{transition:none} }