(function () {
  var s = document.currentScript;
  var cfg = {
    btnBg: s.getAttribute("data-btn-color") || "#1a2a3a",
    btnText: s.getAttribute("data-btn-text-color") || "#ffffff",
    btnLabel: s.getAttribute("data-btn-label") || "Get Instant Estimate",
    iframeSrc: s.getAttribute("data-iframe-src") || "https://google.com",
  };

  // ── Styles ──
  var css = document.createElement("style");
  css.textContent =
    "#rw-dock-btn{" +
      "position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:99999;" +
      "writing-mode:vertical-rl;text-orientation:mixed;" +
      "background:" + cfg.btnBg + ";color:" + cfg.btnText + ";" +
      "padding:18px 13px;font-size:14px;font-weight:600;" +
      "font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;" +
      "letter-spacing:1px;cursor:pointer;border-radius:8px 0 0 8px;" +
      "box-shadow:-2px 0 12px rgba(0,0,0,.25);transition:filter .2s;" +
      "border:none;outline:none" +
    "}" +
    "#rw-dock-btn:hover{filter:brightness(1.15)}" +

    "#rw-overlay{" +
      "position:fixed;inset:0;z-index:100000;display:none" +
    "}" +
    "#rw-overlay.rw-open{display:flex}" +

    "#rw-backdrop{" +
      "position:absolute;inset:0;background:rgba(0,0,0,.5);" +
      "backdrop-filter:blur(3px);opacity:0;transition:opacity .4s ease" +
    "}" +
    "#rw-overlay.rw-open #rw-backdrop{opacity:1}" +

    "#rw-panel{" +
      "position:absolute;top:0;right:0;width:100%;height:100%;" +
      "background:#fff;display:flex;flex-direction:column;" +
      "transform:translateX(100%);" +
      "transition:transform .4s cubic-bezier(.22,1,.36,1)" +
    "}" +
    "#rw-overlay.rw-open #rw-panel{transform:translateX(0)}" +

    "#rw-header{" +
      "display:flex;justify-content:flex-end;padding:14px 20px;" +
      "border-bottom:1px solid #eee;flex-shrink:0" +
    "}" +
    "#rw-close{" +
      "width:36px;height:36px;border-radius:50%;border:1px solid #ddd;" +
      "background:#fff;color:#666;font-size:22px;cursor:pointer;" +
      "display:flex;align-items:center;justify-content:center;" +
      "transition:all .2s;line-height:1;font-family:inherit" +
    "}" +
    "#rw-close:hover{background:#f5f5f5;color:#333}" +

    "#rw-iframe{flex:1;width:100%;border:none}";

  document.head.appendChild(css);

  // ── DOM ──
  var btn = document.createElement("button");
  btn.id = "rw-dock-btn";
  btn.textContent = cfg.btnLabel;
  document.body.appendChild(btn);

  var overlay = document.createElement("div");
  overlay.id = "rw-overlay";
  overlay.innerHTML =
    '<div id="rw-backdrop"></div>' +
    '<div id="rw-panel">' +
      '<div id="rw-header">' +
        '<button id="rw-close">&times;</button>' +
      "</div>" +
      '<iframe id="rw-iframe" src="about:blank" allow="geolocation"></iframe>' +
    "</div>";
  document.body.appendChild(overlay);

  // ── Refs ──
  var backdrop = document.getElementById("rw-backdrop");
  var panel = document.getElementById("rw-panel");
  var closeBtn = document.getElementById("rw-close");
  var iframe = document.getElementById("rw-iframe");

  // ── Open ──
  function open() {
    overlay.style.display = "flex";
    // Force reflow so transition fires from translateX(100%)
    void panel.offsetWidth;
    overlay.classList.add("rw-open");
    iframe.src = cfg.iframeSrc;
    document.body.style.overflow = "hidden";
    btn.style.display = "none";
  }

  // ── Close ──
  function close() {
    overlay.classList.remove("rw-open");
    // Wait for the slide-out transition to finish
    panel.addEventListener(
      "transitionend",
      function handler() {
        panel.removeEventListener("transitionend", handler);
        overlay.style.display = "none";
        iframe.src = "about:blank";
        document.body.style.overflow = "";
        btn.style.display = "";
      }
    );
  }

  // ── Events ──
  btn.addEventListener("click", open);
  closeBtn.addEventListener("click", close);
  backdrop.addEventListener("click", close);
  document.addEventListener("keydown", function (e) {
    if (e.key === "Escape" && overlay.classList.contains("rw-open")) close();
  });
})();