/* ── 더블버퍼 프레임 시스템 ── */
    .frame-wrap {
      flex: 1;
      position: relative;
      overflow: hidden;
      contain: layout style;
    }

    .frame-wrap > iframe {
      width: 100%;
      height: 100%;
      border: none;
      display: block;
      position: absolute;
      top: 0; left: 0;
      background: var(--bg, var(--bg));
    }

    /* 활성 프레임: 보이는 상태 */
    .frame-wrap > iframe.frame-active {
      z-index: 1;
      opacity: 1;
      pointer-events: auto;
    }

    /* 버퍼 프레임: 뒤에 숨겨서 로드 대기 */
    .frame-wrap > iframe.frame-buffer {
      z-index: 0;
      opacity: 0;
      pointer-events: none;
      /* 버퍼는 화면 밖에 배치해 렌더링 깜빡임 차단 */
      transform: translateX(100%);
    }

    /* 전환 애니메이션: 버퍼 → 슬라이드인 + 페이드인 */
    .frame-wrap > iframe.frame-entering {
      z-index: 2;
      opacity: 1;
      pointer-events: auto;
      transform: translateX(0);
      animation: frameSlideIn .32s cubic-bezier(.32,.72,0,1) both;
      will-change: transform, opacity;
    }

    /* 퇴장 애니메이션: 활성 → 페이드아웃 (opacity 1 → 0.5) */
    .frame-wrap > iframe.frame-exiting {
      z-index: 1;
      pointer-events: none;
      animation: frameFadeOut .32s cubic-bezier(.32,.72,0,1) both;
      will-change: transform, opacity;
    }

    @keyframes frameSlideIn {
      from { opacity: 0; transform: translateX(24px) scale(.995); }
      to   { opacity: 1; transform: translateX(0) scale(1); }
    }

    @keyframes frameFadeOut {
      from { opacity: 1; transform: scale(1); }
      to   { opacity: .5; transform: scale(.998); }
    }

    /* breadcrumb nav override */
    #shellBreadcrumb { gap: 6px; }
    #shellBreadcrumb .bc-page { font-size: 13px !important; font-weight: 600 !important; letter-spacing: -.02em !important; line-height: 1.2 !important; }

.bug-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.4);z-index:9000;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s;}
  .bug-backdrop.open{opacity:1;pointer-events:all;}
  .bug-modal{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;width:92vw;max-width:820px;max-height:85vh;overflow-y:auto;transform:translateY(14px);transition:transform .22s cubic-bezier(.22,.61,.36,1);}
  .bug-backdrop.open .bug-modal{transform:translateY(0);}
  .bug-modal-hd{display:flex;align-items:center;gap:8px;padding:16px;border-bottom:1px solid var(--border);}
  .bug-modal-title{font-size:14px;font-weight:800;color:var(--text);}
  .bug-modal-close{margin-left:auto;width:24px;height:24px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--r);cursor:pointer;font-size:13px;color:var(--text2);display:flex;align-items:center;justify-content:center;transition:background .15s;}
  .bug-modal-close:hover{background:var(--bg2);color:var(--text);}
  .bug-modal-columns{display:flex;gap:0;}
  .bug-modal-left{flex:1;min-width:0;display:flex;flex-direction:column;}
  .bug-modal-right{width:280px;flex-shrink:0;border-left:1px solid var(--border);display:flex;flex-direction:column;}
  @media(max-width:680px){.bug-modal-columns{flex-direction:column;}.bug-modal-right{width:100%;border-left:none;border-top:1px solid var(--border);}}
  .bug-modal-body{padding:16px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .bug-field{display:flex;flex-direction:column;gap:4px;}
  .bug-field label{font-size:13px;font-weight:700;color:var(--text2);}
  .bug-field input,.bug-field textarea,.bug-field select{width:100%;padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r);font-size:13px;font-family:var(--f);color:var(--text);outline:none;transition:border-color .15s;}
  .bug-field input:focus,.bug-field textarea:focus,.bug-field select:focus{border-color:var(--t);}
  .bug-field textarea{min-height:80px;resize:vertical;line-height:1.6;}
  .bug-modal-footer{display:flex;gap:8px;padding:0 16px 16px;justify-content:flex-end;}
  .bug-btn{height:36px;padding:0 16px;font-size:13px;font-weight:700;font-family:var(--f);border:1px solid var(--border);border-radius:var(--r-lg);background:var(--panel);color:var(--text2);cursor:pointer;transition:all .2s;}
  .bug-btn:hover{border-color:var(--t);color:var(--t);}
  .bug-btn-submit{background:var(--t2);border-color:var(--t2);color:var(--on-t);}
  .bug-btn-submit:hover{background:var(--t);border-color:var(--t);}
  .bug-btn-submit:disabled{opacity:.4;cursor:not-allowed;}

  /* ── 랭킹 섹션 (우측 패널) ── */
  .bug-rank-section{padding:16px;display:flex;flex-direction:column;flex:1;overflow-y:auto;}
  .bug-rank-divider{display:none;}
  .bug-rank-hd{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
  .bug-rank-title{font-size:13px;font-weight:800;color:var(--text);}
  .bug-rank-sub{font-size:13px;color:var(--text2);}
  .bug-rank-list{display:flex;flex-direction:column;gap:0;}
  .bug-rank-row{display:flex;align-items:center;gap:8px;padding:6px 8px;border-bottom:1px solid var(--border);transition:background .1s;}
  .bug-rank-row:last-child{border-bottom:none;}
  .bug-rank-row:hover{background:var(--bg2);}
  .bug-rank-num{width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0;border-radius:50%;}
  .bug-rank-num.gold,.bug-rank-num.silver,.bug-rank-num.bronze{background:transparent;}
  .bug-rank-num.normal{background:var(--bg3);color:var(--text2);}
  .bug-rank-num svg{display:block;}
  .bug-rank-name{flex:1;font-size:13px;font-weight:600;color:var(--text);}
  .bug-rank-count{font-size:13px;font-weight:800;color:var(--t);min-width:30px;text-align:right;}
  .bug-rank-bar{width:60px;height:6px;background:var(--bg3);flex-shrink:0;border-radius:var(--r);}
  .bug-rank-bar-fill{height:100%;background:linear-gradient(90deg,var(--t2),var(--t));border-radius:var(--r);transition:width .3s;}
  .bug-rank-empty{text-align:center;padding:24px 0;font-size:13px;color:var(--text2);}
  .bug-rank-badge{display:inline-block;padding:2px 8px;font-size:13px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;margin-left:6px;border-radius:var(--r);}
  .bug-rank-badge.coming{background:rgba(37,99,235,.1);color:var(--t);border:1px solid rgba(37,99,235,.2);}