/* APP SHELL */
#app{display:none;min-height:100vh;}
.app-shell{display:flex;min-height:100vh;}
.app-shell[data-nav-mode="split"]{flex-direction:row;}
/* 사이드바 스택: 브랜드(상단) + (아이콘바 + 페이지네비) 나란히 */
.sidebar-stack{display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh;}
.sidebar-row{display:flex;flex:1;min-height:0;}

/* SECTION NAV (아이콘바) */
/* sidebar-stack 안에 있어서 더 이상 자체 sticky/100vh 불필요.
 * pn-brand는 위 레이어에 있고, 이 자리는 아이콘 리스트만 담당. */
.section-nav{width:72px;flex-shrink:0;background:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding:8px 0;gap:4px;overflow-y:auto;scrollbar-width:none;}
.section-nav::-webkit-scrollbar{display:none;}
.sn-list{flex:1;display:flex;flex-direction:column;gap:2px;width:100%;align-items:center;}
.sn-footer{width:100%;display:flex;justify-content:center;padding-top:8px;border-top:1px solid var(--border);}
.sn-item{position:relative;width:60px;min-height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:6px 4px;border:none;background:none;cursor:pointer;border-radius:var(--radius-sm);color:var(--text2);transition:background .12s;border-left:3px solid transparent;font-family:inherit;}
.sn-item:hover{background:var(--surface2);color:var(--text);}
.sn-item.active{background:var(--accent-light);color:var(--accent-text);border-left-color:var(--accent);}
.sn-item.active .sn-label{font-weight:700;}
.sn-icon{font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center;}
.sn-icon svg{width:20px;height:20px;display:block;}
.sn-label{font-size:10.5px;font-weight:600;letter-spacing:.4px;line-height:1;color:inherit;}
.sn-tooltip{position:absolute;left:calc(100% + 8px);top:50%;transform:translateY(-50%);background:var(--text);color:#fff;font-size:12px;padding:4px 8px;border-radius:4px;white-space:nowrap;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .1s .2s;z-index:200;}
.sn-item:hover .sn-tooltip{visibility:visible;opacity:1;}
.sn-badge{position:absolute;top:2px;right:6px;min-width:16px;height:16px;padding:0 4px;background:var(--red);color:#fff;font-size:10px;font-weight:700;border-radius:99px;display:flex;align-items:center;justify-content:center;line-height:1;}
.sn-badge[hidden]{display:none;}

/* PAGE NAV (서브사이드바) */
.page-nav{width:180px;flex-shrink:0;background:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;}
/* pn-brand는 sidebar-stack의 첫 자식 → 자연스럽게 아이콘바+페이지네비
 * 양쪽 위에 걸침. 별도 negative margin 불필요. */
.pn-brand{padding:16px 14px 14px;border-bottom:1px solid var(--border);background:var(--sidebar-bg);flex-shrink:0;text-align:center;}
.pn-brand-name{font-size:18px;font-weight:800;color:var(--text);letter-spacing:-0.4px;}
.pn-brand-tagline{font-size:12.5px;color:var(--text3);margin-top:3px;}
.pn-header{padding:14px 14px 10px;border-bottom:1px solid var(--border);}
.pn-title{font-size:13px;font-weight:700;color:var(--text);margin-bottom:4px;}
.pn-email{font-size:11px;color:var(--text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pn-list{flex:1;overflow-y:auto;padding:10px 8px;}
.pn-group[hidden]{display:none;}
.pn-group:not([hidden]){display:block;}
.sn-item{cursor:grab;}
.sn-item:active{cursor:grabbing;}
.sn-item.sn-dragging{opacity:.4;}
.pn-section{padding:12px 10px 4px;font-size:10px;font-weight:700;color:var(--text3);letter-spacing:1px;text-transform:uppercase;}
.pn-section:first-child{padding-top:4px;}
.pn-item{display:flex;align-items:center;gap:9px;padding:8px 10px;margin-bottom:2px;border-radius:var(--radius-sm);font-size:13px;color:var(--text2);cursor:pointer;border:none;background:none;font-family:inherit;width:100%;text-align:left;font-weight:500;}
.pn-item:hover{background:var(--surface2);color:var(--text);}
.pn-item.active{background:var(--accent-light);color:var(--accent-text);}
.pn-item-icon{font-size:14px;width:18px;text-align:center;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;}
.pn-item-icon svg{width:16px;height:16px;display:block;}
.pn-badge{margin-left:auto;background:var(--red);color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:10px;min-width:18px;text-align:center;line-height:1.2;}
.pn-badge[hidden]{display:none;}

.app-main{flex:1;min-width:0;overflow-x:hidden;}
.page{display:none;padding:1.25rem;max-width:980px;margin:0 auto;width:100%;}
.page.active{display:block;}

/* MOBILE: 아이콘바 상단 가로, 서브사이드바 아래 가로 스크롤 */
@media(max-width:720px){
  .app-shell[data-nav-mode="split"]{flex-direction:column;}
  .sidebar-stack{width:100%;height:auto;position:static;}
  .sidebar-row{flex-direction:column;}
  .section-nav{width:100%;height:auto;flex-direction:row;padding:6px 8px;gap:4px;border-right:none;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;align-items:center;}
  .sn-list{flex-direction:row;flex:1;overflow-x:auto;}
  .sn-list::-webkit-scrollbar{display:none;}
  .sn-item{border-left:none;border-bottom:3px solid transparent;flex-shrink:0;flex-direction:row;width:auto;min-height:36px;gap:6px;padding:4px 10px;}
  .sn-item.active{border-bottom-color:var(--accent);border-left:none;}
  .sn-tooltip{display:none;}
  .sn-label{font-size:11px;}
  .sn-footer{border-top:none;border-left:1px solid var(--border);padding:0 0 0 8px;width:auto;flex-shrink:0;}
  .page-nav{width:100%;height:auto;border-right:none;border-bottom:1px solid var(--border);position:sticky;top:52px;z-index:99;}
  .pn-brand{display:none;} /* 모바일 가로 메뉴에선 브랜드 숨김 (공간 절약) */
  .pn-header{display:none;}
  .pn-list{display:flex;overflow-x:auto;padding:6px 8px;gap:4px;}
  .pn-list::-webkit-scrollbar{display:none;}
  .pn-group:not([hidden]){display:contents;}
  .pn-section{display:none;} /* 모바일은 가로 메뉴라 섹션 라벨 숨김 */
  .pn-item{flex-shrink:0;padding:7px 12px;margin-bottom:0;width:auto;}
  .pn-item-icon{display:none;}
}

/* TAGS */
.tag{font-size:11px;padding:2px 8px;border-radius:4px;font-weight:500;}
.tag-qa{background:var(--accent-light);color:var(--accent-text);}
.tag-return{background:var(--amber-light);color:var(--amber);}
.tag-caution{background:var(--red-light);color:var(--red);}
.tag-glossary{background:var(--green-light);color:var(--green);}

/* MANAGE */
.manage-layout{display:grid;grid-template-columns:210px 1fr;gap:12px;align-items:start;}
@media(max-width:640px){.manage-layout{grid-template-columns:1fr;}}
.sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);position:sticky;top:64px;max-height:calc(100vh - 80px);overflow-y:auto;}
.sidebar-label{font-size:10px;font-weight:700;color:var(--text3);letter-spacing:.08em;padding:6px 6px 4px;}
.sidebar-item{padding:7px 8px;border-radius:var(--radius-sm);font-size:13px;color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:4px;}
.sidebar-item:hover{background:var(--surface2);color:var(--text);}
.sidebar-item.active{background:var(--accent-light);color:var(--accent-text);font-weight:500;}
.sidebar-item-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.sidebar-item-actions{display:none;gap:3px;flex-shrink:0;}
.sidebar-item:hover .sidebar-item-actions{display:flex;}
.sidebar-item.active .sidebar-item-actions{display:flex;}
.sidebar-icon-btn{width:20px;height:20px;border:none;background:none;cursor:pointer;font-size:12px;border-radius:3px;display:flex;align-items:center;justify-content:center;color:var(--text2);}
.sidebar-icon-btn:hover{background:var(--surface2);}
.sidebar-icon-btn.del:hover{background:var(--red-light);color:var(--red);}
.sidebar-add{padding:7px 8px;border-radius:var(--radius-sm);font-size:12px;color:var(--accent);cursor:pointer;}
.sidebar-add:hover{background:var(--accent-light);}
.sidebar-divider{height:1px;background:var(--border);margin:6px 0;}

/* MANAGE SEARCH BAR */
.manage-search-wrap{position:relative;margin-bottom:8px;}
.manage-search-icon{position:absolute;left:9px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:14px;pointer-events:none;}
.manage-search-input{width:100%;padding:7px 10px 7px 30px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background:var(--surface2);color:var(--text);outline:none;}
.manage-search-input:focus{background:var(--surface);border-color:var(--accent);}

/* PANEL */
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.panel-tabs{display:flex;border-bottom:1px solid var(--border);}
.panel-tab{flex:1;padding:12px;text-align:center;font-size:13px;font-weight:500;color:var(--text2);cursor:pointer;border-bottom:2px solid transparent;}
.panel-tab.active{color:var(--accent-text);border-bottom-color:var(--accent);}
.panel-content{padding:16px;}
.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.panel-title{font-size:14px;font-weight:700;}
.panel-badge{font-size:11px;padding:3px 8px;border-radius:4px;background:var(--surface2);color:var(--text2);}

/* FORM */
.form-field{margin-bottom:14px;}
.form-label{font-size:12px;font-weight:500;color:var(--text2);margin-bottom:5px;display:block;}
.form-label .req{color:var(--red);}
.form-input{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background:var(--surface);color:var(--text);outline:none;transition:border-color .15s;}
.form-input:focus{border-color:var(--accent);}
.form-textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background:var(--surface);color:var(--text);outline:none;resize:vertical;min-height:100px;transition:border-color .15s;}
.form-textarea:focus{border-color:var(--accent);}
.form-select{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;background:var(--surface);color:var(--text);outline:none;}
.type-pills{display:flex;gap:6px;flex-wrap:wrap;}
.type-pill{padding:6px 14px;border-radius:99px;border:1px solid var(--border);background:var(--surface);color:var(--text2);font-size:13px;cursor:pointer;}
.type-pill.sel-qa{background:var(--accent-light);border-color:var(--accent);color:var(--accent-text);}
.type-pill.sel-return{background:var(--amber-light);border-color:var(--amber);color:var(--amber);}
.type-pill.sel-caution{background:var(--red-light);border-color:var(--red);color:var(--red);}

/* IMAGE UPLOAD */
.img-upload-area{border:1.5px dashed var(--border2);border-radius:var(--radius-sm);padding:14px;text-align:center;color:var(--text3);font-size:13px;cursor:pointer;position:relative;transition:all .15s;}
.img-upload-area:hover,.img-upload-area.drag-over{border-color:var(--accent);color:var(--accent);background:var(--accent-light);}
.img-upload-input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}
.img-previews{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap;}
.img-preview-wrap{position:relative;}
.img-preview{width:80px;height:60px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);}
.img-remove-btn{position:absolute;top:-6px;right:-6px;width:18px;height:18px;background:var(--red);color:#fff;border-radius:50%;border:none;font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;padding:0;}

/* LIST / QA */
.form-actions{display:flex;gap:8px;margin-top:4px;}
.btn-save{padding:9px 20px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;}
.btn-cancel{padding:9px 16px;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;color:var(--text2);cursor:pointer;}
.btn-export{padding:8px 14px;background:var(--green-light);color:var(--green);border:1px solid var(--green);border-radius:var(--radius-sm);font-size:13px;font-family:inherit;cursor:pointer;font-weight:500;}
.qa-list{display:flex;flex-direction:column;gap:6px;}
.qa-row{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;}
.qa-row-header{padding:10px 12px;display:flex;align-items:flex-start;gap:10px;}
.qa-row-info{flex:1;min-width:0;overflow:hidden;}
.qa-row-q{font-size:13px;font-weight:500;margin-bottom:3px;word-break:break-all;}
/* FIX #4: truncate answer in list */
.qa-row-a{font-size:12px;color:var(--text2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:0;min-width:0;width:100%;display:block;}
.qa-row-date{font-size:11px;color:var(--text3);margin-top:3px;}
.qa-row-actions{display:flex;gap:4px;flex-shrink:0;}
.btn-edit{padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:none;font-size:12px;font-family:inherit;color:var(--text2);cursor:pointer;}
.btn-edit:hover{background:var(--surface2);}
.btn-del{padding:4px 10px;border:1px solid #fca5a5;border-radius:4px;background:none;font-size:12px;font-family:inherit;color:var(--red);cursor:pointer;}
.btn-del:hover{background:var(--red-light);}
.qa-row-edit{display:none;border-top:1px solid var(--border);padding:12px;background:var(--surface2);}
.qa-row-del{display:none;border-top:1px solid var(--border);padding:10px 12px;background:var(--red-light);align-items:center;justify-content:space-between;gap:10px;}
.del-msg{font-size:12px;color:var(--red);}
.btn-confirm-del{padding:5px 12px;background:var(--red);color:#fff;border:none;border-radius:4px;font-size:12px;font-family:inherit;cursor:pointer;}

/* LOADING / NO SELECT */
.loading{text-align:center;padding:2rem;color:var(--text3);font-size:13px;}
.spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;margin-bottom:8px;}
@keyframes spin{to{transform:rotate(360deg);}}
.no-select{text-align:center;padding:3rem 1rem;color:var(--text3);font-size:13px;}

/* LIGHTBOX */
#lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;align-items:center;justify-content:center;}
#lightbox.open{display:flex;}
#lightbox img{max-width:90vw;max-height:90vh;border-radius:var(--radius);}
#lb-close{position:absolute;top:16px;right:20px;color:#fff;font-size:28px;cursor:pointer;background:none;border:none;}

/* TOAST */
#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;padding:10px 20px;border-radius:99px;font-size:13px;z-index:9998;opacity:0;transition:opacity .2s;pointer-events:none;white-space:nowrap;}
#toast.show{opacity:1;}

/* MODAL */
#modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:500;align-items:center;justify-content:center;padding:1rem;}
#modal-overlay.open{display:flex;}
.modal-box{background:var(--surface);border-radius:var(--radius);padding:1.5rem;width:fit-content;max-width:min(95vw,1400px);max-height:90vh;overflow-y:auto;box-shadow:0 8px 30px rgba(0,0,0,.15);}
.modal-title{font-size:15px;font-weight:700;margin-bottom:1rem;}
.modal-actions{display:flex;gap:8px;margin-top:1.25rem;}