@@ Line 343: / Line 343: @@
      window.addEventListener("scroll",  function () { if (activeBtn) positionPop(activeBtn); }, true);
 })();
+/* ============================================================================
+ * SV Definitions v1 — tooltips for .sv-def
+ * - Reads: data-sv-def-tip, data-sv-def-link
+ * - Works with spans output by Module:Definitions
+ * ========================================================================== */
+(function (mw) {
+  "use strict";
+  if (!mw || window.SV_DEF_INIT) return;
+  window.SV_DEF_INIT = true;
+  var tipEl = null;
+  var tipInner = null;
+  var activeEl = null;
+  var pinned = false;
+  function qTipText(el) {
+    var s = (el && el.getAttribute("data-sv-def-tip")) || "";
+    return (s || "").trim();
+  }
+  function qLink(el) {
+    var s = (el && el.getAttribute("data-sv-def-link")) || "";
+    return (s || "").trim();
+  }
+  function ensureTip() {
+    if (tipEl) return;
+    tipEl = document.createElement("div");
+    tipEl.id = "sv-def-tip";
+    tipEl.className = "sv-def-tip";
+    tipEl.setAttribute("role", "tooltip");
+    tipEl.setAttribute("aria-hidden", "true");
+    // Minimal inline styling so it works even without CSS.
+    // You can override in CSS later using #sv-def-tip / .sv-def-tip.
+    tipEl.style.position = "fixed";
+    tipEl.style.zIndex = "99999";
+    tipEl.style.display = "none";
+    tipEl.style.maxWidth = "340px";
+    tipEl.style.padding = "8px 10px";
+    tipEl.style.borderRadius = "8px";
+    tipEl.style.background = "rgba(15, 18, 24, 0.96)";
+    tipEl.style.color = "#fff";
+    tipEl.style.fontSize = "13px";
+    tipEl.style.lineHeight = "1.25";
+    tipEl.style.boxShadow = "0 8px 24px rgba(0,0,0,0.35)";
+    tipEl.style.pointerEvents = "none";
+    tipInner = document.createElement("div");
+    tipInner.className = "sv-def-tip-inner";
+    tipEl.appendChild(tipInner);
+    document.body.appendChild(tipEl);
+  }
+  function suppressTitle(el) {
+    // Prevent double-tooltips (browser title tooltip + our custom tooltip).
+    if (!el) return;
+    var t = el.getAttribute("title");
+    if (t && !el.getAttribute("data-sv-def-title")) {
+      el.setAttribute("data-sv-def-title", t);
+      el.removeAttribute("title");
+    }
+  }
+  function restoreTitle(el) {
+    if (!el) return;
+    var t = el.getAttribute("data-sv-def-title");
+    if (t) {
+      el.setAttribute("title", t);
+      el.removeAttribute("data-sv-def-title");
+    }
+  }
+  function clamp(n, lo, hi) {
+    return Math.max(lo, Math.min(hi, n));
+  }
+  function positionTip(el) {
+    if (!tipEl || !el) return;
+    var r = el.getBoundingClientRect();
+    // Ensure we can measure tip size
+    tipEl.style.left = "0px";
+    tipEl.style.top = "0px";
+    tipEl.style.display = "block";
+    var tr = tipEl.getBoundingClientRect();
+    var pad = 8;
+    var gap = 8;
+    var x = r.left + (r.width / 2) - (tr.width / 2);
+    x = clamp(x, pad, window.innerWidth - tr.width - pad);
+    var y = r.bottom + gap;
+    if (y + tr.height > window.innerHeight - pad) {
+      y = r.top - tr.height - gap;
+    }
+    y = clamp(y, pad, window.innerHeight - tr.height - pad);
+    tipEl.style.left = Math.round(x) + "px";
+    tipEl.style.top = Math.round(y) + "px";
+  }
+  function show(el) {
+    ensureTip();
+    var txt = qTipText(el);
+    if (!txt) return;
+    activeEl = el;
+    tipInner.textContent = txt;
+    tipEl.setAttribute("aria-hidden", "false");
+    tipEl.style.display = "block";
+    suppressTitle(el);
+    positionTip(el);
+  }
+  function hide() {
+    if (!tipEl) return;
+    tipEl.style.display = "none";
+    tipEl.setAttribute("aria-hidden", "true");
+    if (activeEl) restoreTitle(activeEl);
+    activeEl = null;
+    pinned = false;
+  }
+  function isEntering(container, relatedTarget) {
+    return relatedTarget && container && container.contains(relatedTarget);
+  }
+  function closestDef(target) {
+    if (!target || !target.closest) return null;
+    return target.closest(".sv-def");
+  }
+  // Hover in/out (desktop)
+  document.addEventListener("mouseover", function (e) {
+    if (pinned) return;
+    var el = closestDef(e.target);
+    if (!el) return;
+    if (isEntering(el, e.relatedTarget)) return;
+    if (activeEl === el) return;
+    show(el);
+  }, true);
+  document.addEventListener("mouseout", function (e) {
+    if (pinned) return;
+    var el = closestDef(e.target);
+    if (!el) return;
+    if (isEntering(el, e.relatedTarget)) return;
+    if (activeEl === el) hide();
+  }, true);
+  // Tap/click behavior:
+  // - If data-sv-def-link is set, navigate (future-ready).
+  // - Otherwise toggle a pinned tooltip (mobile-friendly).
+  document.addEventListener("click", function (e) {
+    var el = closestDef(e.target);
+    // Click outside closes a pinned tooltip
+    if (!el) {
+      if (pinned) hide();
+      return;
+    }
+    var link = qLink(el);
+    if (link) {
+      // Let it act like a link to a page title
+      window.location.href = mw.util.getUrl(link);
+      return;
+    }
+    var txt = qTipText(el);
+    if (!txt) return;
+    // Toggle pin
+    e.preventDefault();
+    e.stopPropagation();
+    if (pinned && activeEl === el) {
+      hide();
+      return;
+    }
+    pinned = true;
+    show(el);
+  }, true);
+  // Close on Escape
+  document.addEventListener("keydown", function (e) {
+    if (e.key === "Escape" && (pinned || activeEl)) {
+      hide();
+    }
+  }, true);
+  // Reposition if visible
+  window.addEventListener("resize", function () {
+    if (activeEl && tipEl && tipEl.style.display === "block") {
+      positionTip(activeEl);
+    }
+  }, true);
+  // Capture scroll events from containers too
+  window.addEventListener("scroll", function () {
+    if (activeEl && tipEl && tipEl.style.display === "block") {
+      positionTip(activeEl);
+    }
+  }, true);
+  // Support dynamic page content (VisualEditor, etc.)
+  mw.hook("wikipage.content").add(function () {
+    // No-op: event delegation already covers new content.
+  });
+})(window.mw);