// ─────────────────────────────────────────────────────────────────────────────
//  WLEquipGui.RefLayout.cs — PD 레퍼런스 레이아웃(#881 · 2026-10-16)
//
//  PD 원문: 「장비 아이템에 텍스트가 너무 많아. 첨부한 레퍼런스 게임과 같이 장비 UI 팝업의 레이아웃을 수정해줘」
//          + 「인벤토리 화면도 예시 이미지와 같이 레이아웃을 개선하도록 해.」
//  - 장비 상세 팝업 V2: 등급 리본 · 제목 띠 · 아이콘 + 「레벨: n/max」 · 능력치(+다음 레벨 증가분) + 합성 · 강등 작은 버튼 · 짧은 설명 ·
//    「등급 스킬」 목록(등급 색 점 · 잠긴 등급 = 자물쇠 + 흐림 · 마지막 줄 = 시너지) · 비용 줄 · 버튼 3(장비 · 레벨업 · 일괄 레벨업).
//    예전 긴 글(FR 옵션 · 계산식 · 설명 문단)은 넣지 않는다.
//  - 인벤토리 머리줄: 부위 탭 대신 「정렬 · 나의 장비 · 합성」(부위 거르기 = 빈 슬롯 누르기 · 제목 누르면 전체).
//  치수 · 색 · 글자 · 아이콘 = Resources/WL/WLEquipGui.json itemPopup · hub(C45).
// ─────────────────────────────────────────────────────────────────────────────

using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using WL.PartSkill;

namespace WL.Equip
{
    public partial class WLEquipGui
    {
        WLGuiItemPopup IP;
        bool IpOn { get { return IP != null && IP.enabled != 0; } }

        TextMeshProUGUI _ipLevel, _ipStat, _ipDesc, _ipSection, _ipGold, _ipStone;
        Image _ipStatIcon, _ipGoldIcon, _ipStoneIcon;
        RectTransform _ipRowsRoot, _ipStoneGroup;
        sealed class IpRow { public RectTransform root; public Image dot, lockImg; public TextMeshProUGUI text; }
        readonly List<IpRow> _ipRows = new List<IpRow>();
        public static int ItemPopupV2Refreshes;

        // ── 인벤토리 머리줄 · 정렬 ──────────────────────────────────────────
        int _sortMode;
        TextMeshProUGUI _sortLabel, _gridTitle;

        void BuildGridHeader()
        {
            var hdr = NewRT(_hub, "GridHeader");
            hdr.anchorMin = new Vector2(0f, 1f); hdr.anchorMax = new Vector2(1f, 1f); hdr.pivot = new Vector2(0.5f, 1f);
            hdr.anchoredPosition = new Vector2(0f, -H.tabTop); hdr.sizeDelta = new Vector2(0f, H.headerH);
            var sortBtn = NewButton(hdr, SortLabel(), Spr("btnPrimary"), Color.white, H.headerBtnW, H.headerH, () => { _sortMode = (_sortMode + 1) % Mathf.Max(1, H.sortLabels != null ? H.sortLabels.Length : 1); Refresh(); }, H.headerBtnFontPx, DarkCol());
            Place((RectTransform)sortBtn.transform, new Vector2(0f, 0.5f), new Vector2(H.edge, 0f), new Vector2(H.headerBtnW, H.headerH), new Vector2(0f, 0.5f));
            _sortLabel = sortBtn.GetComponentInChildren<TextMeshProUGUI>();
            _composeOpenBtn = NewButton(hdr, "합성", Spr("btnPrimary"), Color.white, H.headerBtnW, H.headerH, () => OpenCompose(-1), H.headerBtnFontPx, DarkCol());
            Place((RectTransform)_composeOpenBtn.transform, new Vector2(1f, 0.5f), new Vector2(-H.edge, 0f), new Vector2(H.headerBtnW, H.headerH), new Vector2(1f, 0.5f));
            _gridTitle = NewText(hdr, "Title", H.headerFontPx, TextAlignmentOptions.Midline, TextCol());
            _gridTitle.fontStyle = FontStyles.Bold; ApplyOutline(_gridTitle); _gridTitle.raycastTarget = true;
            var trt = _gridTitle.rectTransform; trt.anchorMin = new Vector2(0f, 0f); trt.anchorMax = new Vector2(1f, 1f);
            trt.offsetMin = new Vector2(H.edge + H.headerBtnW + 16f, 0f); trt.offsetMax = new Vector2(-(H.edge + H.headerBtnW + 16f), 0f);
            var tb = _gridTitle.gameObject.AddComponent<Button>(); tb.targetGraphic = _gridTitle; tb.onClick.AddListener(() => { _tab = 0; Refresh(); });   // 제목 = 부위 거르기 해제
        }

        string SortLabel()
        {
            var l = H.sortLabels;
            return l != null && l.Length > 0 ? l[Mathf.Clamp(_sortMode, 0, l.Length - 1)] : "정렬";
        }

        void RefreshGridHeader()
        {
            if (_sortLabel != null) _sortLabel.text = SortLabel();
            if (_gridTitle != null) _gridTitle.text = H.gridTitle + (_tab != 0 ? " · " + WLEquipTables.SlotName((eFREquipmentType)_tab) : "");
        }

        static int TierOfItem(Item it)
        {
            WLGradeTier t; int plus;
            return it != null && it.itemJson != null && it.itemJson.IsEquipment && WLEquipGrades.TryMap(it.itemJson, out t, out plus) ? t.tier * 100 + plus : 0;
        }

        /// <summary>그리드 목록 — 장착분 빼기(hub.gridHideEquipped) + 정렬(0 = 등급순 · 1 = 레벨순 · 장비 먼저 · 소모품 뒤).</summary>
        List<Item> GridItems(List<Item> src)
        {
            if (H.headerMode == 0 && H.gridHideEquipped == 0) return src;
            var list = new List<Item>(src.Count);
            for (int i = 0; i < src.Count; i++)
            {
                var it = src[i];
                if (H.gridHideEquipped != 0 && it.itemJson.IsEquipment && WLInventory.IsEquipped(it.rawItem._id)) continue;
                list.Add(it);
            }
            if (H.headerMode == 0) return list;
            int mode = _sortMode;
            list.Sort((a, b) =>
            {
                bool qa = a.itemJson.IsEquipment, qb = b.itemJson.IsEquipment;
                if (qa != qb) return qa ? -1 : 1;
                int ta = TierOfItem(a), tb = TierOfItem(b), la = a.rawItem.level, lb = b.rawItem.level;
                int c = mode == 1 ? lb.CompareTo(la) : tb.CompareTo(ta);
                if (c != 0) return c;
                c = mode == 1 ? tb.CompareTo(ta) : lb.CompareTo(la);
                if (c != 0) return c;
                c = a.itemJson.EquipmentType.CompareTo(b.itemJson.EquipmentType);
                if (c != 0) return c;
                return a.rawItem._id.CompareTo(b.rawItem._id);
            });
            return list;
        }

        // ── 장비 상세 팝업 V2 ────────────────────────────────────────────────
        void BuildItemPopupV2()
        {
            _popup = new GameObject("DetailPopup", typeof(RectTransform)); _popup.layer = UILayer; _popup.transform.SetParent(_root, false);
            var prt = (RectTransform)_popup.transform; Stretch(prt);
            var dim = NewImage(prt, "Dim", null, Col("dim", new Color(0f, 0f, 0f, 0.7f)), Image.Type.Simple); Stretch(dim.rectTransform); dim.raycastTarget = true;
            var dimBtn = dim.gameObject.AddComponent<Button>(); dimBtn.targetGraphic = dim; dimBtn.onClick.AddListener(() => _popup.SetActive(false));
            var box = NewPopupBox(prt, "Box", new Vector2(IP.w, IP.h)); var b = box.rectTransform;
            const float rim = 14f;

            // 제목 띠 + 등급 리본 + 닫기
            var titleBar = NewImage(b, "TitleBar", Spr("titleBar"), Col("popupTitleBar", new Color(1f, 0.78f, 0.2f, 1f)));
            var tb = titleBar.rectTransform; tb.anchorMin = new Vector2(0f, 1f); tb.anchorMax = new Vector2(1f, 1f); tb.pivot = new Vector2(0.5f, 1f);
            tb.offsetMin = new Vector2(rim, -IP.titleH - rim); tb.offsetMax = new Vector2(-rim, -rim);
            _popupName = NewText(tb, "Name", IP.titleFontPx, TextAlignmentOptions.Midline, Col("popupTitleText", Color.white)); _popupName.fontStyle = FontStyles.Bold; ApplyOutline(_popupName);
            Stretch(_popupName.rectTransform, 100f, 4f, 100f, 4f);
            _popupRarityImg = NewImage(b, "Ribbon", Spr("gradeLabel"), Color.white);
            Place(_popupRarityImg.rectTransform, new Vector2(0.5f, 1f), new Vector2(0f, IP.ribbonH * 0.35f), new Vector2(IP.ribbonW, IP.ribbonH), new Vector2(0.5f, 0.5f));
            _popupRarity = NewText(_popupRarityImg.rectTransform, "Rarity", IP.ribbonFontPx, TextAlignmentOptions.Midline, Color.white); _popupRarity.fontStyle = FontStyles.Bold; ApplyOutline(_popupRarity); Stretch(_popupRarity.rectTransform);
            var close = NewIconButton(b, "Close", "closeIcon", L.closeBtnW, () => _popup.SetActive(false), "closeBtnBg");
            Place((RectTransform)close.transform, new Vector2(1f, 1f), new Vector2(10f, 10f), new Vector2(L.closeBtnW, L.closeBtnH), new Vector2(1f, 1f));

            // 아이콘 + 레벨
            float x0 = rim + IP.pad, y0 = rim + IP.titleH + IP.pad;
            _popupForm = NewCell(b, "Form", IP.iconSize, L.cellIconInset, L.cellFontPx, true, false, null);
            Place(_popupForm.root, new Vector2(0f, 1f), new Vector2(x0, -y0), new Vector2(IP.iconSize, IP.iconSize), new Vector2(0f, 1f));
            _ipLevel = NewText(b, "Level", IP.levelFontPx, TextAlignmentOptions.Midline, TextCol()); _ipLevel.fontStyle = FontStyles.Bold;
            Place(_ipLevel.rectTransform, new Vector2(0f, 1f), new Vector2(x0, -(y0 + IP.iconSize + 4f)), new Vector2(IP.iconSize, IP.levelFontPx + 12f), new Vector2(0f, 1f));

            // 능력치 상자 + 작은 버튼(합성 · 강등)
            float rx = x0 + IP.iconSize + IP.gap, rw = IP.w - rx - x0;
            float statW = rw - (IP.smallBtn + IP.gap) * 2f;
            var statBox = NewImage(b, "StatBox", Spr("innerBox"), Col("statBox", new Color(0.1f, 0.14f, 0.3f, 0.92f)));
            Place(statBox.rectTransform, new Vector2(0f, 1f), new Vector2(rx, -y0), new Vector2(statW, IP.statH), new Vector2(0f, 1f));
            _ipStatIcon = NewImage(statBox.rectTransform, "Icon", null, Color.white, Image.Type.Simple); _ipStatIcon.preserveAspect = true;
            Place(_ipStatIcon.rectTransform, new Vector2(0f, 0.5f), new Vector2(10f, 0f), new Vector2(IP.statIcon, IP.statIcon), new Vector2(0f, 0.5f));
            _ipStat = NewText(statBox.rectTransform, "Value", IP.statFontPx, TextAlignmentOptions.MidlineRight, TextCol()); _ipStat.fontStyle = FontStyles.Bold; ApplyOutline(_ipStat);
            _ipStat.enableWordWrapping = false; _ipStat.overflowMode = TextOverflowModes.Ellipsis;
            var srt = _ipStat.rectTransform; srt.anchorMin = Vector2.zero; srt.anchorMax = Vector2.one; srt.offsetMin = new Vector2(IP.statIcon + 18f, 0f); srt.offsetMax = new Vector2(-16f, 0f);
            _composeBtn = NewButton(b, "합성", Spr("btnBlue"), Color.white, IP.smallBtn, IP.statH, () => OpenCompose(_selectedId), IP.smallBtnFontPx, TextCol());
            Place((RectTransform)_composeBtn.transform, new Vector2(0f, 1f), new Vector2(rx + statW + IP.gap, -y0), new Vector2(IP.smallBtn, IP.statH), new Vector2(0f, 1f));
            _downBtn = NewButton(b, "강등", Spr("btnDanger"), Color.white, IP.smallBtn, IP.statH, () => Act(() => WLInventory.Downgrade(_selectedId)), IP.smallBtnFontPx, TextCol());
            Place((RectTransform)_downBtn.transform, new Vector2(0f, 1f), new Vector2(rx + statW + IP.gap * 2f + IP.smallBtn, -y0), new Vector2(IP.smallBtn, IP.statH), new Vector2(0f, 1f));

            // 짧은 설명
            float dy = y0 + IP.statH + IP.gap;
            float dh = Mathf.Max(IP.descH, IP.iconSize + IP.levelFontPx + 16f - IP.statH - IP.gap);
            var desc = NewImage(b, "Desc", Spr("innerBox"), Col("descBox", new Color(0f, 0f, 0f, 0.28f)));
            Place(desc.rectTransform, new Vector2(0f, 1f), new Vector2(rx, -dy), new Vector2(rw, dh), new Vector2(0f, 1f));
            _ipDesc = NewText(desc.rectTransform, "Text", IP.descFontPx, TextAlignmentOptions.MidlineLeft, Col("descText", new Color(0.92f, 0.94f, 1f, 1f)));
            _ipDesc.enableWordWrapping = true; _ipDesc.overflowMode = TextOverflowModes.Ellipsis; Stretch(_ipDesc.rectTransform, 16f, 8f, 16f, 8f);

            // 등급 스킬
            float bottomBlock = rim + IP.pad + IP.btnH + IP.gap + IP.costH + IP.gap;
            float sy = Mathf.Max(dy + dh, y0 + IP.iconSize + IP.levelFontPx + 16f) + IP.gap;
            var sec = NewImage(b, "Section", Spr("innerBox"), Col("sectionBox", new Color(0f, 0f, 0f, 0.26f)));
            var secRt = sec.rectTransform; secRt.anchorMin = Vector2.zero; secRt.anchorMax = Vector2.one; secRt.offsetMin = new Vector2(x0, bottomBlock); secRt.offsetMax = new Vector2(-x0, -sy);
            var head = NewImage(secRt, "Head", Spr("innerBox"), Col("sectionHead", new Color(0f, 0f, 0f, 0.3f)));
            var hrt = head.rectTransform; hrt.anchorMin = new Vector2(0f, 1f); hrt.anchorMax = new Vector2(1f, 1f); hrt.pivot = new Vector2(0.5f, 1f); hrt.offsetMin = new Vector2(0f, -IP.sectionTitleH); hrt.offsetMax = Vector2.zero;
            _ipSection = NewText(hrt, "Title", IP.sectionTitleFontPx, TextAlignmentOptions.MidlineLeft, TextCol()); _ipSection.fontStyle = FontStyles.Bold; Stretch(_ipSection.rectTransform, 20f, 0f, 20f, 0f);
            _ipSection.text = IP.sectionTitle;
            _ipRowsRoot = NewRT(secRt, "Rows");
            _ipRowsRoot.anchorMin = Vector2.zero; _ipRowsRoot.anchorMax = Vector2.one; _ipRowsRoot.offsetMin = new Vector2(16f, 8f); _ipRowsRoot.offsetMax = new Vector2(-16f, -IP.sectionTitleH - 8f);
            var vl = _ipRowsRoot.gameObject.AddComponent<VerticalLayoutGroup>(); vl.spacing = 2f;
            vl.childControlWidth = true; vl.childControlHeight = true; vl.childForceExpandWidth = true; vl.childForceExpandHeight = false;
            var circle = WLPartSkillHud.CircleSprite();
            for (int i = 0; i < 8; i++)
            {
                var r = new IpRow();
                r.root = NewRT(_ipRowsRoot, "Row" + i); Pref(r.root, 0f, IP.rowH);
                r.dot = NewImage(r.root, "Dot", circle, Color.white, Image.Type.Simple);
                Place(r.dot.rectTransform, new Vector2(0f, 0.5f), new Vector2(6f + (IP.lockSize - IP.dotSize) * 0.5f, 0f), new Vector2(IP.dotSize, IP.dotSize), new Vector2(0f, 0.5f));
                r.lockImg = NewImage(r.root, "Lock", Spr("lockIcon"), Col("lockTint", new Color(1f, 0.75f, 0.3f, 1f)), Image.Type.Simple); r.lockImg.preserveAspect = true;
                Place(r.lockImg.rectTransform, new Vector2(0f, 0.5f), new Vector2(6f, 0f), new Vector2(IP.lockSize, IP.lockSize), new Vector2(0f, 0.5f));
                r.text = NewText(r.root, "Text", IP.rowFontPx, TextAlignmentOptions.MidlineLeft, TextCol()); r.text.enableWordWrapping = false; r.text.overflowMode = TextOverflowModes.Ellipsis;
                var t = r.text.rectTransform; t.anchorMin = Vector2.zero; t.anchorMax = Vector2.one; t.offsetMin = new Vector2(IP.lockSize + 20f, 0f); t.offsetMax = Vector2.zero;
                _ipRows.Add(r);
            }

            // 비용 줄(골드 · 강화석)
            var cost = NewRT(b, "Cost");
            cost.anchorMin = new Vector2(0f, 0f); cost.anchorMax = new Vector2(1f, 0f); cost.pivot = new Vector2(0.5f, 0f);
            cost.offsetMin = new Vector2(x0, rim + IP.pad + IP.btnH + IP.gap); cost.offsetMax = new Vector2(-x0, rim + IP.pad + IP.btnH + IP.gap + IP.costH);
            var hl = cost.gameObject.AddComponent<HorizontalLayoutGroup>(); hl.spacing = 10f; hl.childAlignment = TextAnchor.MiddleCenter;
            hl.childControlWidth = true; hl.childControlHeight = true; hl.childForceExpandWidth = false; hl.childForceExpandHeight = false;
            _ipGoldIcon = NewImage(cost, "GoldIcon", Spr("goldIcon"), Color.white, Image.Type.Simple); _ipGoldIcon.preserveAspect = true; Pref(_ipGoldIcon.rectTransform, IP.costIcon, IP.costIcon);
            _ipGold = NewText(cost, "Gold", IP.costFontPx, TextAlignmentOptions.MidlineLeft, TextCol()); _ipGold.fontStyle = FontStyles.Bold; ApplyOutline(_ipGold);
            _ipGold.enableWordWrapping = false; var gle = _ipGold.gameObject.AddComponent<LayoutElement>(); gle.minHeight = IP.costH;
            _ipStoneGroup = NewRT(cost, "StoneGroup");
            var shl = _ipStoneGroup.gameObject.AddComponent<HorizontalLayoutGroup>(); shl.spacing = 10f; shl.padding = new RectOffset(30, 0, 0, 0); shl.childAlignment = TextAnchor.MiddleCenter;
            shl.childControlWidth = true; shl.childControlHeight = true; shl.childForceExpandWidth = false; shl.childForceExpandHeight = false;
            _ipStoneIcon = NewImage(_ipStoneGroup, "StoneIcon", Spr("stoneIcon"), Color.white, Image.Type.Simple); _ipStoneIcon.preserveAspect = true; Pref(_ipStoneIcon.rectTransform, IP.costIcon, IP.costIcon);
            _ipStone = NewText(_ipStoneGroup, "Stone", IP.costFontPx, TextAlignmentOptions.MidlineLeft, TextCol()); _ipStone.fontStyle = FontStyles.Bold; ApplyOutline(_ipStone);
            _ipStone.enableWordWrapping = false; var sle = _ipStone.gameObject.AddComponent<LayoutElement>(); sle.minHeight = IP.costH;

            // 버튼 3 — 장비 · 레벨업 · 일괄 레벨업
            var row = NewRT(b, "Buttons");
            row.anchorMin = new Vector2(0f, 0f); row.anchorMax = new Vector2(1f, 0f); row.pivot = new Vector2(0.5f, 0f);
            row.offsetMin = new Vector2(x0, rim + IP.pad); row.offsetMax = new Vector2(-x0, rim + IP.pad + IP.btnH);
            var bl = row.gameObject.AddComponent<HorizontalLayoutGroup>(); bl.spacing = IP.gap;
            bl.childControlWidth = true; bl.childControlHeight = true; bl.childForceExpandWidth = false; bl.childForceExpandHeight = true;
            _equipBtn = NewButton(row, "장비", Spr("btnBlue"), Color.white, 0f, IP.btnH, OnEquipToggle, IP.btnFontPx, TextCol()); Flex((RectTransform)_equipBtn.transform, 1f);
            _equipLabel = _equipBtn.GetComponentInChildren<TextMeshProUGUI>();
            _lvBtn = NewButton(row, "레벨업", Spr("btnPrimary"), Color.white, 0f, IP.btnH, () => Act(() => WLInventory.ItemLevelUp(_selectedId, false)), IP.btnFontPx, DarkCol()); Flex((RectTransform)_lvBtn.transform, 1f);
            _lvAllBtn = NewButton(row, "일괄 레벨업", Spr("btnSecondary"), Color.white, 0f, IP.btnH, () => Act(() => WLInventory.ItemLevelUp(_selectedId, true)), IP.btnFontPx, DarkCol()); Flex((RectTransform)_lvAllBtn.transform, 1f);
            _popup.SetActive(false);
        }

        void RefreshItemPopupV2(Item sel)
        {
            ItemPopupV2Refreshes++;
            var j = sel.itemJson;
            bool isEq = j.IsEquipment;
            BindCell(_popupForm, sel, false);
            _popupName.text = j.Item_name;
            int tier = 1, plus = 0; WLGradeTier t = null;
            if (isEq && WLEquipGrades.TryMap(j, out t, out plus)) tier = t.tier;
            _popupRarityImg.color = isEq ? TierCol(tier) : Col("frameEmpty", Color.gray);
            _popupRarity.text = isEq ? WLEquipGrades.Label(j, false) : "소모품";
            _ipLevel.text = isEq ? IP.levelPrefix + sel.rawItem.level + "/" + j.ItemMaxLv : "×" + sel.rawItem.count;

            string iconKey = null;
            _ipStat.text = isEq ? StatText(sel, out iconKey) : "";
            string sprName; _ipStatIcon.sprite = iconKey != null && IP.statIcons != null && IP.statIcons.TryGetValue(iconKey, out sprName) ? WLEquipGuiAssets.Get(sprName) : null;
            _ipStatIcon.color = _ipStatIcon.sprite != null ? Color.white : new Color(1f, 1f, 1f, 0f);
            _ipDesc.text = DescText(sel);
            FillGradeRows(sel, isEq ? tier : 0);
            FillCost(sel, isEq);

            bool equipped = isEq && WLInventory.IsEquipped(sel.rawItem._id);
            _equipLabel.text = equipped ? "해제" : "장비";
            SetEnabled(_equipBtn, isEq, "btnBlue");
            bool canLv = isEq && WLInventory.NextLevelCost(sel) != null;
            SetEnabled(_lvBtn, canLv, "btnPrimary"); SetEnabled(_lvAllBtn, canLv, "btnSecondary");
            ItemComposeJson cj; ItemJson rj;
            SetEnabled(_composeBtn, isEq && WLInventory.ComposeInfo(sel, out cj, out rj), "btnBlue");
            SetEnabled(_downBtn, isEq && WLEquipTables.FindComposeByResult(j.ItemGrade, j.GradeLv) != null, "btnDanger");
        }

        /// <summary>능력치 한 줄 — 평평한 값 = 「7.0<초록>+0.3</초록>」(다음 레벨 증가분) · 반지 = 근접/원거리 · 신발 · 목걸이 = 배율 문구.</summary>
        string StatText(Item sel, out string iconKey)
        {
            iconKey = null;
            var part = WLEquipGrades.Part(sel.itemJson.EquipmentType);
            if (part == null) return "";
            if (WLEquipGrades.IsRateOutput(part)) { iconKey = part.output; return WLPartStats.ItemStatLine(sel, true); }
            eStat o; double bv, bonus; string line;
            if (!WLEquipStats.ItemValues(sel, WLEquipStats.CurrentMainStat(), out o, out bv, out bonus, out line)) return "";
            double cur = bv + bonus;
            iconKey = WLEquipGrades.IsRingOutput(part) ? "RING" : o.ToString();
            string head = "";
            if (WLEquipGrades.IsRingOutput(part))
            {
                string rn; bool ok = WLPartStats.RingMatches(sel, out rn);
                head = (rn.Length > 0 ? rn.Split(' ')[0] : rn) + " ";
                if (!ok) return "<color=#FF8A8A>" + head + cur.ToString("0.#") + "</color>";
            }
            string s = head + cur.ToString("0.#");
            if (WLInventory.NextLevelCost(sel) != null)
            {
                eStat o2; double bv2, bonus2; string line2;
                if (WLEquipStats.ItemValues(sel, WLEquipStats.CurrentMainStat(), out o2, out bv2, out bonus2, out line2, sel.rawItem.level + 1))
                {
                    double d = bv2 + bonus2 - cur;
                    if (d > 0.05) s += "<color=#" + ColorUtility.ToHtmlStringRGB(Col("statDelta", new Color(0.49f, 0.92f, 0.38f, 1f))) + ">+" + d.ToString("0.#") + "</color>";
                }
            }
            return s;
        }

        /// <summary>짧은 설명 — 파츠 스킬 설명 · 무기 = 주력/각성 스킬 이름 · 그 밖 = 표 설명.</summary>
        string DescText(Item sel)
        {
            var j = sel.itemJson;
            if (!j.IsEquipment) return j.Desc ?? "";
            var d = WLPartSkillData.Enabled ? WLPartSkillData.DefForGroup(j.GroupNo) : null;
            if (d != null && (d.kind == WLPartKind.Active || d.kind == WLPartKind.Passive)) return d.desc;
            if (j.EquipmentType == eFREquipmentType.Weapon)
            {
                var rows = WL.Combat.Weapon.WLWeaponSkillTable.Rows(j.GroupNo);
                if (rows != null && rows.Count > 0)
                {
                    var sb = new System.Text.StringBuilder();
                    foreach (var r in WL.Combat.Weapon.WLWeaponSkillTable.ByUnlock(rows)) { if (sb.Length > 0) sb.Append(" · "); sb.Append(WL.Combat.Weapon.WLWeaponSkillTable.SlotName(r.slot)).Append(" [").Append(r.skillName).Append(']'); }   // #973 기본 → 주력 → 각성
                    return sb.ToString();
                }
            }
            return j.Desc ?? "";
        }

        /// <summary>등급 스킬 줄 — 파츠 스킬 = 등급별 단계 · 무기 = 무기 스킬 등급표 · 마지막 = 시너지. 지금 등급보다 높은 줄 = 자물쇠 + 흐림.</summary>
        void FillGradeRows(Item sel, int tier)
        {
            var j = sel.itemJson;
            var texts = new List<string>(); var tiers = new List<int>(); var open = new List<bool>();
            var d = j.IsEquipment && WLPartSkillData.Enabled ? WLPartSkillData.DefForGroup(j.GroupNo) : null;
            int maxParts = Mathf.Max(1, IP.rowMaxParts);
            if (d != null && (d.kind == WLPartKind.Active || d.kind == WLPartKind.Passive))
            {
                for (int t = 1; t <= WLEquipGrades.MaxTier; t++) { texts.Add(WLPartSkillText.TierRow(d, t, maxParts)); tiers.Add(t); open.Add(t <= tier); }   // #973 G1~G8
            }
            else if (j.IsEquipment && j.EquipmentType == eFREquipmentType.Weapon)
            {
                var rows = WL.Combat.Weapon.WLWeaponSkillTable.Rows(j.GroupNo);
                string main = "", awaken = "", basic = "";
                if (rows != null) foreach (var r in rows) { if (r.slot == 1) main = r.skillName; else if (r.slot == 2) awaken = r.skillName; else if (r.slot == 3) basic = r.skillName; }   // #973 3 = 기본
                var wt = IP.weaponTierText;
                if (rows != null && rows.Count > 0 && wt != null && wt.Length > 1)
                    for (int t = 1; t <= WLEquipGrades.MaxTier && t < wt.Length; t++) { texts.Add(wt[t].Replace("{main}", main).Replace("{awaken}", awaken).Replace("{basic}", basic.Length > 0 ? basic : "준비 중")); tiers.Add(t); open.Add(t <= tier); }
            }
            // 시너지 줄(파츠 액티브 · 무기 시너지 · 결합)
            if (d != null && d.HasSynergy && d.kind != WLPartKind.Passive)
            {
                var s = SlotFor(sel, d);
                var p = WLPartSkillData.Def(!string.IsNullOrEmpty(d.synKey) ? d.synKey : d.combineKey);
                int need = WLPartSkillData.S.synergyLevel;
                texts.Add("★ 시너지 [" + (string.IsNullOrEmpty(d.synName) ? d.name : d.synName) + "] · " + (p != null ? p.name : "?") + " " + need + "단계");
                tiers.Add(0); open.Add(s != null && s.synergy);
            }
            for (int i = 0; i < _ipRows.Count; i++)
            {
                var r = _ipRows[i];
                bool on = i < texts.Count;
                SetOn(r.root, on || (i == 0 && texts.Count == 0));
                if (!on)
                {
                    if (i == 0 && texts.Count == 0) { SetOn(r.dot, false); SetOn(r.lockImg, false); r.text.text = IP.noSkillText; r.text.color = Col("textDim", Color.gray); }
                    continue;
                }
                bool isOpen = open[i];
                SetOn(r.dot, isOpen); SetOn(r.lockImg, !isOpen);
                r.dot.color = tiers[i] > 0 ? TierCol(tiers[i]) : Col("synergyOn", new Color(1f, 0.8f, 0.25f, 1f));
                r.lockImg.color = tiers[i] > 0 ? TierCol(tiers[i]) : Col("synergyOn", new Color(1f, 0.8f, 0.25f, 1f));
                r.text.text = texts[i];
                var c = TextCol(); if (!isOpen) c.a = 0.45f;
                r.text.color = c;
            }
        }

        void FillCost(Item sel, bool isEq)
        {
            var cost = isEq ? WLInventory.NextLevelCost(sel) : null;
            SetOn(_ipGoldIcon, cost != null);
            if (cost == null) { _ipGold.text = isEq ? IP.maxLevelText : ""; SetOn(_ipStoneGroup, false); return; }
            long g = WLInventory.GetGold();
            string lack = "#" + ColorUtility.ToHtmlStringRGB(Col("costLack", new Color(1f, 0.45f, 0.45f, 1f)));
            _ipGold.text = (g < cost.MoneyCountRequired ? "<color=" + lack + ">" : "") + Short(g) + "/" + Short(cost.MoneyCountRequired) + (g < cost.MoneyCountRequired ? "</color>" : "");
            bool needStone = cost.ItemKeyRequired > 0 && cost.ItemCountRequired > 0;
            SetOn(_ipStoneGroup, needStone);
            if (needStone)
            {
                long have = WLInventory.GetItemCountByIndex(cost.ItemKeyRequired);
                _ipStone.text = (have < cost.ItemCountRequired ? "<color=" + lack + ">" : "") + have + "/" + cost.ItemCountRequired + (have < cost.ItemCountRequired ? "</color>" : "");
            }
        }

        public string ItemPopupStateForProbe
        {
            get
            {
                if (!IpOn || _popup == null) return "v2 off";
                int rows = 0; foreach (var r in _ipRows) if (r.root.gameObject.activeSelf) rows++;
                return "v2 open=" + _popup.activeSelf + " name='" + (_popupName != null ? _popupName.text : "") + "' stat='" + (_ipStat != null ? _ipStat.text : "") + "' rows=" + rows + " gold='" + (_ipGold != null ? _ipGold.text : "") + "'";
            }
        }
    }
}