feat: MC admin — collapsible cards, filters, photo preview, validation, archive

- Collapsible cards with title + hall in label, archive badge
- Archived MCs sorted to bottom, dimmed with "Архив" badge
- Cards have hover + focus-within gold border highlight
- Date validation: error text for missing dates and invalid time ranges
- Search by title/trainer + filter by date (upcoming/past) and hall
- Photo preview with hover overlay (like trainer page)
- ArrayEditor: hiddenItems, getItemBadge props, focus-within styles

src/app/admin/_components/ArrayEditor.tsx

@@ -13,6 +13,8 @@ interface ArrayEditorProps<T> {
   addLabel?: string;
   collapsible?: boolean;
   getItemTitle?: (item: T, index: number) => string;
+  getItemBadge?: (item: T, index: number) => React.ReactNode;
+  hiddenItems?: Set<number>;
 }
 
 export function ArrayEditor<T>({
@@ -24,6 +26,8 @@ export function ArrayEditor<T>({
   addLabel = "Добавить",
   collapsible = false,
   getItemTitle,
+  getItemBadge,
+  hiddenItems,
 }: ArrayEditorProps<T>) {
   const [dragIndex, setDragIndex] = useState<number | null>(null);
   const [insertAt, setInsertAt] = useState<number | null>(null);
@@ -146,14 +150,15 @@ export function ArrayEditor<T>({
     if (dragIndex === null || insertAt === null) {
       return items.map((item, i) => {
         const isCollapsed = collapsible && collapsed.has(i) && newItemIndex !== i;
+        const isHidden = hiddenItems?.has(i) ?? false;
         const title = getItemTitle?.(item, i) || `#${i + 1}`;
         return (
           <div
             key={i}
             ref={(el) => { itemRefs.current[i] = el; }}
-            className={`rounded-lg border bg-neutral-900/50 mb-3 hover:border-white/25 hover:bg-neutral-800/50 transition-all ${
+            className={`rounded-lg border bg-neutral-900/50 mb-3 hover:border-white/25 hover:bg-neutral-800/50 focus-within:border-gold/50 focus-within:bg-neutral-800 transition-all ${
               newItemIndex === i ? "border-gold/40 ring-1 ring-gold/20" : "border-white/10"
-            }`}
+            } ${isHidden ? "hidden" : ""}`}
           >
             <div className={`flex items-center justify-between gap-2 p-4 ${isCollapsed ? "" : "pb-0 mb-3"}`}>
               <div className="flex items-center gap-2 flex-1 min-w-0">
@@ -170,6 +175,7 @@ export function ArrayEditor<T>({
                     className="flex items-center gap-2 flex-1 min-w-0 text-left cursor-pointer group"
                   >
                     <span className="text-sm font-medium text-neutral-300 truncate group-hover:text-white transition-colors">{title}</span>
+                    {getItemBadge?.(item, i)}
                     <ChevronDown size={14} className={`text-neutral-500 transition-transform duration-200 shrink-0 ${isCollapsed ? "" : "rotate-180"}`} />
                   </button>
                 )}
@@ -231,7 +237,7 @@ export function ArrayEditor<T>({
         <div
           key={i}
           ref={(el) => { itemRefs.current[i] = el; }}
-          className="rounded-lg border border-white/10 bg-neutral-900/50 p-4 mb-3 hover:border-white/25 hover:bg-neutral-800/50 transition-colors"
+          className="rounded-lg border border-white/10 bg-neutral-900/50 p-4 mb-3 hover:border-white/25 hover:bg-neutral-800/50 focus-within:border-gold/50 focus-within:bg-neutral-800 transition-colors"
         >
           <div className="flex items-start justify-between gap-2 mb-3">
             <div

src/app/admin/master-classes/page.tsx

@@ -1,13 +1,45 @@
 "use client";
 
-import { useState, useRef, useEffect, useMemo } from "react";
+import { useState, useEffect } from "react";
+import Image from "next/image";
 import { SectionEditor } from "../_components/SectionEditor";
 import { InputField, TextareaField, ParticipantLimits, AutocompleteMulti } from "../_components/FormField";
 import { ArrayEditor } from "../_components/ArrayEditor";
-import { Plus, X, Upload, Loader2, ImageIcon, AlertCircle, Check } from "lucide-react";
+import { Plus, X, Upload, Loader2, AlertCircle, Check, Search } from "lucide-react";
 import { adminFetch } from "@/lib/csrf";
 import type { MasterClassItem, MasterClassSlot } from "@/types/content";
 
+// --- Helpers ---
+
+function isItemArchived(item: MasterClassItem): boolean {
+  const slots = item.slots ?? [];
+  if (slots.length === 0) return false;
+  const today = new Date().toISOString().slice(0, 10);
+  return slots.every((s) => s.date && s.date < today);
+}
+
+function itemMatchesSearch(item: MasterClassItem, query: string): boolean {
+  if (!query) return true;
+  const q = query.toLowerCase();
+  return (
+    (item.title || "").toLowerCase().includes(q) ||
+    (item.trainer || "").toLowerCase().includes(q)
+  );
+}
+
+function itemMatchesDateFilter(item: MasterClassItem, filter: "all" | "upcoming" | "past"): boolean {
+  if (filter === "all") return true;
+  const archived = isItemArchived(item);
+  return filter === "past" ? archived : !archived;
+}
+
+function itemMatchesLocation(item: MasterClassItem, locationFilter: string): boolean {
+  if (!locationFilter) return true;
+  return (item.location || "") === locationFilter;
+}
+
+// --- Price Field ---
+
 function PriceField({ label, value, onChange, placeholder }: { label: string; value: string; onChange: (v: string) => void; placeholder?: string }) {
   const raw = value.replace(/\s*BYN\s*$/i, "").trim();
   return (
@@ -37,7 +69,6 @@ interface MasterClassesData {
   items: MasterClassItem[];
 }
 
-
 // --- Location Select ---
 function LocationSelect({
   value,
@@ -92,6 +123,13 @@ function calcDurationText(startTime: string, endTime: string): string {
   return `${m} мин`;
 }
 
+function hasTimeError(startTime: string, endTime: string): boolean {
+  if (!startTime || !endTime) return false;
+  const [sh, sm] = startTime.split(":").map(Number);
+  const [eh, em] = endTime.split(":").map(Number);
+  return (eh * 60 + em) <= (sh * 60 + sm);
+}
+
 function SlotsField({
   slots,
   onChange,
@@ -123,41 +161,54 @@ function SlotsField({
       <div className="space-y-2">
         {slots.map((slot, i) => {
           const dur = calcDurationText(slot.startTime, slot.endTime);
+          const timeError = hasTimeError(slot.startTime, slot.endTime);
           return (
-            <div key={i} className="flex items-center gap-2 flex-wrap">
-              <input
-                type="date"
-                value={slot.date}
-                onChange={(e) => updateSlot(i, { date: e.target.value })}
-                className={`w-[140px] rounded-lg border bg-neutral-800 px-3 py-2 text-sm text-white outline-none transition-colors [color-scheme:dark] ${
-                  !slot.date ? "border-red-500/50" : "border-white/10 focus:border-gold"
-                }`}
-              />
-              <input
-                type="time"
-                value={slot.startTime}
-                onChange={(e) => updateSlot(i, { startTime: e.target.value })}
-                className="w-[100px] rounded-lg border border-white/10 bg-neutral-800 px-3 py-2 text-sm text-white outline-none focus:border-gold transition-colors [color-scheme:dark]"
-              />
-              <span className="text-neutral-500 text-xs">–</span>
-              <input
-                type="time"
-                value={slot.endTime}
-                onChange={(e) => updateSlot(i, { endTime: e.target.value })}
-                className="w-[100px] rounded-lg border border-white/10 bg-neutral-800 px-3 py-2 text-sm text-white outline-none focus:border-gold transition-colors [color-scheme:dark]"
-              />
-              {dur && (
-                <span className="text-[11px] text-neutral-500 bg-neutral-800/50 rounded-full px-2 py-0.5">
-                  {dur}
-                </span>
+            <div key={i}>
+              <div className="flex items-center gap-2 flex-wrap">
+                <input
+                  type="date"
+                  value={slot.date}
+                  onChange={(e) => updateSlot(i, { date: e.target.value })}
+                  className={`w-[140px] rounded-lg border bg-neutral-800 px-3 py-2 text-sm text-white outline-none transition-colors [color-scheme:dark] ${
+                    !slot.date ? "border-red-500/50" : "border-white/10 focus:border-gold"
+                  }`}
+                />
+                <input
+                  type="time"
+                  value={slot.startTime}
+                  onChange={(e) => updateSlot(i, { startTime: e.target.value })}
+                  className={`w-[100px] rounded-lg border bg-neutral-800 px-3 py-2 text-sm text-white outline-none transition-colors [color-scheme:dark] ${
+                    timeError ? "border-red-500/50" : "border-white/10 focus:border-gold"
+                  }`}
+                />
+                <span className="text-neutral-500 text-xs">&ndash;</span>
+                <input
+                  type="time"
+                  value={slot.endTime}
+                  onChange={(e) => updateSlot(i, { endTime: e.target.value })}
+                  className={`w-[100px] rounded-lg border bg-neutral-800 px-3 py-2 text-sm text-white outline-none transition-colors [color-scheme:dark] ${
+                    timeError ? "border-red-500/50" : "border-white/10 focus:border-gold"
+                  }`}
+                />
+                {dur && (
+                  <span className="text-[11px] text-neutral-500 bg-neutral-800/50 rounded-full px-2 py-0.5">
+                    {dur}
+                  </span>
+                )}
+                <button
+                  type="button"
+                  onClick={() => removeSlot(i)}
+                  className="shrink-0 rounded-lg p-2 text-neutral-500 hover:text-red-400 transition-colors"
+                >
+                  <X size={14} />
+                </button>
+              </div>
+              {!slot.date && (
+                <p className="mt-0.5 ml-1 text-[11px] text-red-400">Укажите дату</p>
+              )}
+              {timeError && (
+                <p className="mt-0.5 ml-1 text-[11px] text-red-400">Время окончания должно быть позже начала</p>
               )}
-              <button
-                type="button"
-                onClick={() => removeSlot(i)}
-                className="shrink-0 rounded-lg p-2 text-neutral-500 hover:text-red-400 transition-colors"
-              >
-                <X size={14} />
-              </button>
             </div>
           );
         })}
@@ -174,8 +225,8 @@ function SlotsField({
   );
 }
 
-// --- Image Upload ---
-function ImageUploadField({
+// --- Photo Preview (like trainer page) ---
+function PhotoPreview({
   value,
   onChange,
 }: {
@@ -183,7 +234,6 @@ function ImageUploadField({
   onChange: (path: string) => void;
 }) {
   const [uploading, setUploading] = useState(false);
-  const inputRef = useRef<HTMLInputElement>(null);
 
   async function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
     const file = e.target.files?.[0];
@@ -208,54 +258,48 @@ function ImageUploadField({
 
   return (
     <div>
-      <label className="block text-sm text-neutral-400 mb-1.5">
-        Изображение
-      </label>
+      <label className="block text-sm text-neutral-400 mb-1.5">Изображение</label>
       {value ? (
-        <div className="flex items-center gap-2">
-          <div className="flex items-center gap-1.5 rounded-lg bg-neutral-700/50 px-3 py-2 text-sm text-neutral-300">
-            <ImageIcon size={14} className="text-gold" />
-            <span className="max-w-[200px] truncate">
-              {value.split("/").pop()}
-            </span>
-          </div>
+        <div className="relative">
+          <label className="relative block w-full aspect-[16/9] overflow-hidden rounded-xl border border-white/10 cursor-pointer group">
+            <Image
+              src={value}
+              alt="Превью"
+              fill
+              className="object-cover"
+              sizes="(max-width: 768px) 100vw, 500px"
+            />
+            <div className="absolute inset-0 bg-black/50 opacity-0 group-hover:opacity-100 transition-opacity flex flex-col items-center justify-center gap-1">
+              {uploading ? (
+                <Loader2 size={20} className="animate-spin text-white" />
+              ) : (
+                <>
+                  <Upload size={20} className="text-white" />
+                  <span className="text-[11px] text-white/80">Изменить</span>
+                </>
+              )}
+            </div>
+            <input type="file" accept="image/*" onChange={handleUpload} className="hidden" />
+          </label>
           <button
             type="button"
             onClick={() => onChange("")}
-            className="rounded-lg p-2 text-neutral-500 hover:text-red-400 transition-colors"
+            className="absolute top-2 right-2 rounded-lg bg-black/60 p-1.5 text-neutral-400 hover:text-red-400 transition-colors"
           >
             <X size={14} />
           </button>
-          <label className="flex cursor-pointer items-center gap-1.5 rounded-lg border border-white/10 px-3 py-2 text-sm text-neutral-400 hover:text-white hover:border-white/25 transition-colors">
-            {uploading ? (
-              <Loader2 size={14} className="animate-spin" />
-            ) : (
-              <Upload size={14} />
-            )}
-            Заменить
-            <input
-              type="file"
-              accept="image/*"
-              onChange={handleUpload}
-              className="hidden"
-            />
-          </label>
         </div>
       ) : (
-        <label className="flex cursor-pointer items-center gap-2 rounded-lg border border-dashed border-white/20 px-4 py-3 text-sm text-neutral-400 hover:text-white hover:border-white/40 transition-colors">
+        <label className="flex cursor-pointer items-center justify-center gap-2 w-full aspect-[16/9] rounded-xl border-2 border-dashed border-white/20 text-sm text-neutral-400 hover:text-white hover:border-white/40 transition-colors">
           {uploading ? (
-            <Loader2 size={16} className="animate-spin" />
+            <Loader2 size={20} className="animate-spin" />
           ) : (
-            <Upload size={16} />
+            <>
+              <Upload size={20} />
+              <span>Загрузить изображение</span>
+            </>
           )}
-          {uploading ? "Загрузка..." : "Загрузить изображение"}
-          <input
-            ref={inputRef}
-            type="file"
-            accept="image/*"
-            onChange={handleUpload}
-            className="hidden"
-          />
+          <input type="file" accept="image/*" onChange={handleUpload} className="hidden" />
         </label>
       )}
     </div>
@@ -339,11 +383,113 @@ function ValidationHint({ fields }: { fields: Record<string, string> }) {
   );
 }
 
+// --- Filter bar ---
+type DateFilter = "all" | "upcoming" | "past";
+
+const DATE_FILTER_LABELS: Record<DateFilter, string> = {
+  all: "Все",
+  upcoming: "Предстоящие",
+  past: "Прошедшие",
+};
+
+function FilterBar({
+  search,
+  onSearchChange,
+  dateFilter,
+  onDateFilterChange,
+  locationFilter,
+  onLocationFilterChange,
+  locations,
+  totalCount,
+  visibleCount,
+}: {
+  search: string;
+  onSearchChange: (v: string) => void;
+  dateFilter: DateFilter;
+  onDateFilterChange: (v: DateFilter) => void;
+  locationFilter: string;
+  onLocationFilterChange: (v: string) => void;
+  locations: { name: string; address: string }[];
+  totalCount: number;
+  visibleCount: number;
+}) {
+  return (
+    <div className="space-y-3 mb-4">
+      <div className="relative">
+        <Search size={16} className="absolute left-3 top-1/2 -translate-y-1/2 text-neutral-500" />
+        <input
+          type="text"
+          value={search}
+          onChange={(e) => onSearchChange(e.target.value)}
+          placeholder="Поиск по названию или тренеру..."
+          className="w-full rounded-lg border border-white/10 bg-neutral-800 pl-10 pr-4 py-2.5 text-sm text-white placeholder-neutral-500 outline-none focus:border-gold transition-colors"
+        />
+        {search && (
+          <button
+            type="button"
+            onClick={() => onSearchChange("")}
+            className="absolute right-3 top-1/2 -translate-y-1/2 text-neutral-500 hover:text-white transition-colors"
+          >
+            <X size={14} />
+          </button>
+        )}
+      </div>
+      <div className="flex flex-wrap items-center gap-2">
+        <div className="flex gap-1">
+          {(Object.keys(DATE_FILTER_LABELS) as DateFilter[]).map((key) => (
+            <button
+              key={key}
+              type="button"
+              onClick={() => onDateFilterChange(key)}
+              className={`rounded-full px-3 py-1 text-xs font-medium transition-all ${
+                dateFilter === key
+                  ? "bg-gold/20 text-gold border border-gold/40"
+                  : "bg-neutral-800 text-neutral-400 border border-white/10 hover:border-white/25 hover:text-white"
+              }`}
+            >
+              {DATE_FILTER_LABELS[key]}
+            </button>
+          ))}
+        </div>
+        {locations.length > 0 && (
+          <>
+            <span className="text-neutral-600 text-xs">|</span>
+            <div className="flex gap-1">
+              {locations.map((loc) => (
+                <button
+                  key={loc.name}
+                  type="button"
+                  onClick={() => onLocationFilterChange(locationFilter === loc.name ? "" : loc.name)}
+                  className={`rounded-full px-3 py-1 text-xs font-medium transition-all ${
+                    locationFilter === loc.name
+                      ? "bg-gold/20 text-gold border border-gold/40"
+                      : "bg-neutral-800 text-neutral-400 border border-white/10 hover:border-white/25 hover:text-white"
+                  }`}
+                >
+                  {loc.name}
+                </button>
+              ))}
+            </div>
+          </>
+        )}
+        {visibleCount < totalCount && (
+          <span className="text-xs text-neutral-500 ml-auto">
+            {visibleCount} из {totalCount}
+          </span>
+        )}
+      </div>
+    </div>
+  );
+}
+
 // --- Main page ---
 export default function MasterClassesEditorPage() {
   const [trainers, setTrainers] = useState<string[]>([]);
   const [styles, setStyles] = useState<string[]>([]);
   const [locations, setLocations] = useState<{ name: string; address: string }[]>([]);
+  const [search, setSearch] = useState("");
+  const [dateFilter, setDateFilter] = useState<DateFilter>("all");
+  const [locationFilter, setLocationFilter] = useState("");
 
   useEffect(() => {
     // Fetch trainers from team
@@ -376,119 +522,173 @@ export default function MasterClassesEditorPage() {
       sectionKey="masterClasses"
       title="Мастер-классы"
     >
-      {(data, update) => (
-        <>
-          <InputField
-            label="Заголовок секции"
-            value={data.title}
-            onChange={(v) => update({ ...data, title: v })}
-          />
+      {(data, update) => {
+        // Sort: active first, archived at bottom
+        const displayItems = [...data.items].sort((a, b) => {
+          const aArch = isItemArchived(a);
+          const bArch = isItemArchived(b);
+          if (aArch === bArch) return 0;
+          return aArch ? 1 : -1;
+        });
 
-          <ArrayEditor
-            label="Мастер-классы"
-            items={data.items}
-            onChange={(items) => update({ ...data, items })}
-            renderItem={(item, _i, updateItem) => (
-              <div className="space-y-3">
-                <ValidationHint
-                  fields={{
-                    Название: item.title,
-                    Тренер: item.trainer,
-                    Стиль: item.style,
-                    Стоимость: item.cost,
-                    "Даты и время": (item.slots ?? []).length > 0 ? "ok" : "",
-                  }}
-                />
+        const hiddenItems = new Set<number>();
+        displayItems.forEach((item, i) => {
+          if (
+            !itemMatchesSearch(item, search) ||
+            !itemMatchesDateFilter(item, dateFilter) ||
+            !itemMatchesLocation(item, locationFilter)
+          ) {
+            hiddenItems.add(i);
+          }
+        });
 
-                <InputField
-                  label="Название"
-                  value={item.title}
-                  onChange={(v) => updateItem({ ...item, title: v })}
-                  placeholder="Мастер-класс от Анны Тарыбы"
-                />
+        const visibleCount = data.items.length - hiddenItems.size;
 
-                <ImageUploadField
-                  value={item.image}
-                  onChange={(v) => updateItem({ ...item, image: v })}
-                />
+        return (
+          <>
+            <InputField
+              label="Заголовок секции"
+              value={data.title}
+              onChange={(v) => update({ ...data, title: v })}
+            />
 
-                <div className="grid gap-3 sm:grid-cols-2">
-                  <AutocompleteMulti
-                    label="Тренер"
-                    value={item.trainer}
-                    onChange={(v) => updateItem({ ...item, trainer: v })}
-                    options={trainers}
-                    placeholder="Добавить тренера..."
-                  />
-                  <AutocompleteMulti
-                    label="Стиль"
-                    value={item.style}
-                    onChange={(v) => updateItem({ ...item, style: v })}
-                    options={styles}
-                    placeholder="Добавить стиль..."
-                  />
-                </div>
+            <FilterBar
+              search={search}
+              onSearchChange={setSearch}
+              dateFilter={dateFilter}
+              onDateFilterChange={setDateFilter}
+              locationFilter={locationFilter}
+              onLocationFilterChange={setLocationFilter}
+              locations={locations}
+              totalCount={data.items.length}
+              visibleCount={visibleCount}
+            />
 
-                <PriceField
-                  label="Стоимость"
-                  value={item.cost}
-                  onChange={(v) => updateItem({ ...item, cost: v })}
-                  placeholder="40"
-                />
+            <ArrayEditor
+              label="Мастер-классы"
+              items={displayItems}
+              onChange={(items) => update({ ...data, items })}
+              collapsible
+              hiddenItems={hiddenItems}
+              getItemTitle={(item) => {
+                const base = item.location
+                  ? `${item.title || "Без названия"} · ${item.location}`
+                  : item.title || "Без названия";
+                return base;
+              }}
+              getItemBadge={(item) =>
+                isItemArchived(item) ? (
+                  <span className="shrink-0 rounded-full bg-neutral-700/50 px-2 py-0.5 text-[10px] font-medium text-neutral-500">
+                    Архив
+                  </span>
+                ) : null
+              }
+              renderItem={(item, _i, updateItem) => {
+                const archived = isItemArchived(item);
+                return (
+                  <div className={`space-y-3 ${archived ? "opacity-50" : ""}`}>
 
-                {locations.length > 0 && (
-                  <LocationSelect
-                    value={item.location || ""}
-                    onChange={(v) =>
-                      updateItem({ ...item, location: v || undefined })
-                    }
-                    locations={locations}
-                  />
-                )}
+                    <ValidationHint
+                      fields={{
+                        Название: item.title,
+                        Тренер: item.trainer,
+                        Стиль: item.style,
+                        Стоимость: item.cost,
+                        "Даты и время": (item.slots ?? []).length > 0 ? "ok" : "",
+                      }}
+                    />
 
-                <SlotsField
-                  slots={item.slots ?? []}
-                  onChange={(slots) => updateItem({ ...item, slots })}
-                />
+                    <InputField
+                      label="Название"
+                      value={item.title}
+                      onChange={(v) => updateItem({ ...item, title: v })}
+                      placeholder="Мастер-класс от Анны Тарыбы"
+                    />
 
-                <TextareaField
-                  label="Описание"
-                  value={item.description || ""}
-                  onChange={(v) =>
-                    updateItem({ ...item, description: v || undefined })
-                  }
-                  placeholder="Описание мастер-класса, трек, стиль..."
-                  rows={3}
-                />
+                    <PhotoPreview
+                      value={item.image}
+                      onChange={(v) => updateItem({ ...item, image: v })}
+                    />
 
-                <InstagramLinkField
-                  value={item.instagramUrl || ""}
-                  onChange={(v) =>
-                    updateItem({ ...item, instagramUrl: v || undefined })
-                  }
-                />
+                    <div className="grid gap-3 sm:grid-cols-2">
+                      <AutocompleteMulti
+                        label="Тренер"
+                        value={item.trainer}
+                        onChange={(v) => updateItem({ ...item, trainer: v })}
+                        options={trainers}
+                        placeholder="Добавить тренера..."
+                      />
+                      <AutocompleteMulti
+                        label="Стиль"
+                        value={item.style}
+                        onChange={(v) => updateItem({ ...item, style: v })}
+                        options={styles}
+                        placeholder="Добавить стиль..."
+                      />
+                    </div>
 
-                <ParticipantLimits
-                  min={item.minParticipants ?? 0}
-                  max={item.maxParticipants ?? 0}
-                  onMinChange={(v) => updateItem({ ...item, minParticipants: v })}
-                  onMaxChange={(v) => updateItem({ ...item, maxParticipants: v })}
-                />
+                    <PriceField
+                      label="Стоимость"
+                      value={item.cost}
+                      onChange={(v) => updateItem({ ...item, cost: v })}
+                      placeholder="40"
+                    />
 
-              </div>
-            )}
-            createItem={() => ({
-              title: "",
-              image: "",
-              slots: [],
-              trainer: "",
-              cost: "",
-              style: "",
-            })}
-            addLabel="Добавить мастер-класс"
-          />
-        </>
-      )}
+                    {locations.length > 0 && (
+                      <LocationSelect
+                        value={item.location || ""}
+                        onChange={(v) =>
+                          updateItem({ ...item, location: v || undefined })
+                        }
+                        locations={locations}
+                      />
+                    )}
+
+                    <SlotsField
+                      slots={item.slots ?? []}
+                      onChange={(slots) => updateItem({ ...item, slots })}
+                    />
+
+                    <TextareaField
+                      label="Описание"
+                      value={item.description || ""}
+                      onChange={(v) =>
+                        updateItem({ ...item, description: v || undefined })
+                      }
+                      placeholder="Описание мастер-класса, трек, стиль..."
+                      rows={3}
+                    />
+
+                    <InstagramLinkField
+                      value={item.instagramUrl || ""}
+                      onChange={(v) =>
+                        updateItem({ ...item, instagramUrl: v || undefined })
+                      }
+                    />
+
+                    <ParticipantLimits
+                      min={item.minParticipants ?? 0}
+                      max={item.maxParticipants ?? 0}
+                      onMinChange={(v) => updateItem({ ...item, minParticipants: v })}
+                      onMaxChange={(v) => updateItem({ ...item, maxParticipants: v })}
+                    />
+
+                  </div>
+                );
+              }}
+              createItem={() => ({
+                title: "",
+                image: "",
+                slots: [],
+                trainer: "",
+                cost: "",
+                style: "",
+              })}
+              addLabel="Добавить мастер-класс"
+            />
+          </>
+        );
+      }}
     </SectionEditor>
   );
 }