Улучшена мобильная адаптация и поведение фильтров на главной

static/js/index.js

@@ -17,6 +17,9 @@
     clearBtn: document.getElementById("clearBtn"),
     modeInfra: document.getElementById("modeInfra"),
     modeIb: document.getElementById("modeIb"),
+    resultSection: document.querySelector(".result"),
+    filtersSection: document.querySelector(".board"),
+    activeFilters: document.getElementById("activeFilters"),
   };
 
   let clickAudioCtx = null;
@@ -130,9 +133,12 @@
       else if (!allowedVendors.has(vendor.id)) node.classList.add("dim");
       node.textContent = vendor.name;
       node.addEventListener("click", () => {
-        if (state.selectedVendors.has(vendor.id)) state.selectedVendors.delete(vendor.id);
+        const wasSelected = state.selectedVendors.has(vendor.id);
+        if (wasSelected) state.selectedVendors.delete(vendor.id);
         else state.selectedVendors.add(vendor.id);
         render();
+        if (wasSelected) scrollAfterDeselect();
+        else scrollToResultsSmooth();
       });
       el.vendorList.appendChild(node);
     }
@@ -148,9 +154,12 @@
       else if (!allowedCategories.has(category.id)) node.classList.add("dim");
       node.textContent = category.name;
       node.addEventListener("click", () => {
-        if (state.selectedCategories.has(category.id)) state.selectedCategories.delete(category.id);
+        const wasSelected = state.selectedCategories.has(category.id);
+        if (wasSelected) state.selectedCategories.delete(category.id);
         else state.selectedCategories.add(category.id);
         render();
+        if (wasSelected) scrollAfterDeselect();
+        else scrollToResultsSmooth();
       });
       el.categoryList.appendChild(node);
     }
@@ -213,9 +222,82 @@
     el.modeIb.classList.toggle("active", state.scope === "ib");
     document.body.classList.toggle("scope-ib", state.scope === "ib");
     renderChips();
+    renderActiveFilters();
     renderResults();
   }
 
+  function scrollToResultsSmooth() {
+    if (!el.resultSection) return;
+    const top = Math.max(el.resultSection.getBoundingClientRect().top + window.scrollY - 10, 0);
+    window.scrollTo({ top, behavior: "smooth" });
+  }
+
+  function scrollToFiltersSmooth() {
+    if (!el.filtersSection) return;
+    const top = Math.max(el.filtersSection.getBoundingClientRect().top + window.scrollY - 8, 0);
+    window.scrollTo({ top, behavior: "smooth" });
+  }
+
+  function scrollToTopSmooth() {
+    window.scrollTo({ top: 0, behavior: "smooth" });
+  }
+
+  function scrollAfterDeselect() {
+    if (window.innerWidth > 980) {
+      scrollToTopSmooth();
+      return;
+    }
+    scrollToFiltersSmooth();
+  }
+
+  function renderActiveFilters() {
+    if (!el.activeFilters) return;
+    el.activeFilters.innerHTML = "";
+
+    const vendorsById = new Map(state.data.vendors.map(v => [v.id, v.name]));
+    const categoriesById = new Map(state.data.categories.map(c => [c.id, c.name]));
+
+    const items = [];
+    for (const id of state.selectedVendors) {
+      const name = vendorsById.get(id);
+      if (name) items.push({ kind: "Вендор", name, id, type: "vendor" });
+    }
+    for (const id of state.selectedCategories) {
+      const name = categoriesById.get(id);
+      if (name) items.push({ kind: "Категория", name, id, type: "category" });
+    }
+
+    if (items.length === 0) {
+      el.activeFilters.style.display = "none";
+      return;
+    }
+    el.activeFilters.style.display = "flex";
+
+    for (const item of items) {
+      const node = document.createElement("div");
+      node.className = "active-filter";
+
+      const text = document.createElement("span");
+      text.innerHTML = `<span class="kind">${item.kind}:</span> ${item.name}`;
+      node.appendChild(text);
+
+      const remove = document.createElement("button");
+      remove.className = "remove";
+      remove.type = "button";
+      remove.setAttribute("aria-label", `Убрать фильтр ${item.name}`);
+      remove.textContent = "×";
+      remove.addEventListener("click", () => {
+        if (item.type === "vendor") state.selectedVendors.delete(item.id);
+        else state.selectedCategories.delete(item.id);
+        render();
+        scrollToFiltersSmooth();
+      });
+      node.appendChild(remove);
+
+      el.activeFilters.appendChild(node);
+    }
+  }
+
   async function loadScopeData(scope) {
     const res = await fetch(`/api/data?scope=${encodeURIComponent(scope)}`);
     state.data = await res.json();
@@ -258,6 +340,7 @@
     el.vendorSearch.value = "";
     el.categorySearch.value = "";
     render();
+    scrollAfterDeselect();
   });
 
   el.modeInfra.addEventListener("click", () => {