/* ============ backstage.css — File menu ============ */
.backstage{
  position:fixed;inset:0;z-index:1100;background:#fff;display:flex;animation:bs-in .12s ease-out;
}
@keyframes bs-in{from{opacity:0}to{opacity:1}}
.bs-left{
  width:230px;background:#2b579a;color:#fff;display:flex;flex-direction:column;padding:14px 0 18px;flex:0 0 auto;
}
.bs-head{padding:0 26px 18px;border-bottom:1px solid rgba(255,255,255,.25);margin-bottom:10px}
.bs-wordmark{width:52px;height:52px}
.bs-nav{display:flex;flex-direction:column}
.bs-nav-bottom{margin-top:auto}
.bs-nav-item{
  text-align:left;padding:9px 26px;font-size:13.5px;color:#e8f0fb;border-radius:0 20px 20px 0;margin-right:10px;
  display:flex;align-items:center;gap:10px;
}
.bs-nav-item svg{width:17px;height:17px;fill:currentColor;opacity:.9}
.bs-nav-item:hover{background:rgba(255,255,255,.12)}
.bs-nav-item.active{background:#fff;color:#2b579a;font-weight:600}
.bs-main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}
.bs-content{padding:36px 52px;overflow-y:auto;flex:1}
.bs-page-title{font-size:30px;font-weight:300;margin-bottom:26px;color:#1e1e1e}
.bs-pane{display:none}
.bs-pane.active{display:block}

/* Info */
.bs-info-grid{display:flex;gap:60px;align-items:flex-start}
.bs-info-props{flex:1;min-width:280px;max-width:520px}
.bs-prop{display:flex;align-items:center;padding:7px 0;border-bottom:1px solid #f0f0f0;font-size:13px}
.bs-prop .bp-label{width:150px;color:#666;flex:0 0 auto}
.bs-prop .bp-value{flex:1;font-size:13px;color:#1e1e1e;min-width:0}
.bs-prop input{width:100%;border:none;border-bottom:1px dashed #c8c8c8;font-size:13px;padding:2px 4px;background:transparent;color:#1e1e1e}
.bs-prop input:hover{border-bottom-color:#888}
.bs-prop input:focus{outline:none;border-bottom:1.5px solid var(--accent)}
.bs-info-stats{flex:0 0 280px;border:1px solid #e3e3e3;border-radius:6px;padding:18px 22px}
.bs-info-stats h3{font-size:14px;margin-bottom:12px}
.bs-stat{display:flex;justify-content:space-between;padding:5px 0;font-size:12.5px;color:#333}
.bs-stat .sv{font-weight:600}
.bs-info-cards{display:flex;gap:18px;margin-top:34px}
.bs-card{
  flex:0 0 190px;border:1px solid #e3e3e3;border-radius:6px;padding:16px 18px;cursor:pointer;background:#fff;
}
.bs-card:hover{border-color:var(--accent);box-shadow:0 2px 8px rgba(43,89,154,.15)}
.bs-card .bc-icon{font-size:22px;margin-bottom:8px}
.bs-card .bc-title{font-size:13px;font-weight:600;margin-bottom:3px}
.bs-card .bc-desc{font-size:11.5px;color:#777}

/* New */
.bs-new-search{width:320px;height:30px;border:1px solid #ababab;border-radius:3px;padding:0 12px;font-size:13px;margin-bottom:20px;background:#fff}
.bs-new-search:focus{outline:1px solid var(--accent)}
.bs-templates-label{font-size:13px;color:#666;margin-bottom:12px}
.bs-templates{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:18px;max-width:900px}
.bs-tpl{
  cursor:pointer;border-radius:4px;padding:6px;transition:background .1s;
}
.bs-tpl:hover{background:#f0f6fd}
.bs-tpl:active{background:#dceaf9}
.bs-tpl-thumb{
  width:100%;aspect-ratio:8.5/10.4;border:1px solid #d5d5d5;background:#fff;border-radius:3px;overflow:hidden;
  box-shadow:0 1px 3px rgba(0,0,0,.1);padding:7px 6px;position:relative;
}
.bs-tpl-thumb .tp-line{position:absolute;left:6px;right:6px;height:3px;border-radius:2px;background:#e3e3e3}
.bs-tpl-thumb .tp-img{position:absolute;left:6px;width:40%;height:24px;border-radius:2px}
.bs-tpl-name{font-size:12px;text-align:center;margin-top:7px;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bs-tpl-cat{font-size:10.5px;color:#999;text-align:center}

/* Open */
.bs-recent{border:1px solid #e3e3e3;border-radius:6px;max-width:640px;overflow:hidden}
.bs-recent-head{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid #f0f0f0;font-weight:600;font-size:14px}
.bs-recent-item{
  display:flex;align-items:center;gap:14px;padding:12px 20px;cursor:pointer;border-bottom:1px solid #f5f5f5;font-size:13px;
}
.bs-recent-item:hover{background:#f0f6fd}
.bs-recent-item .ri-icon{font-size:20px}
.bs-recent-item .ri-name{font-weight:600}
.bs-recent-item .ri-meta{font-size:11.5px;color:#888}
.bs-recent-item .ri-date{margin-left:auto;color:#888;font-size:11.5px;white-space:nowrap}
.bs-bigrow{display:flex;gap:26px;margin-top:26px}
.bs-action{
  flex:0 0 200px;border:1px solid #e3e3e3;border-radius:6px;padding:20px 22px;cursor:pointer;background:#fff;
}
.bs-action:hover{border-color:var(--accent)}
.bs-action .ba-title{font-size:13.5px;font-weight:600;margin-bottom:4px}
.bs-action .ba-desc{font-size:11.5px;color:#777}
.bs-action svg{width:24px;height:24px;fill:#2b579a;margin-bottom:10px}

/* Save / Save As */
.bs-save-panel{max-width:560px}
.bs-save-btn{display:flex;align-items:center;gap:12px;border:1px solid #e3e3e3;border-radius:6px;padding:18px 22px;background:#fff;cursor:pointer;margin-bottom:14px}
.bs-save-btn:hover{border-color:var(--accent);box-shadow:0 2px 8px rgba(43,89,154,.15)}
.bs-save-btn svg{width:26px;height:26px;fill:#2b579a}
.bs-save-btn .sb-title{font-size:14px;font-weight:600}
.bs-save-btn .sb-desc{font-size:11.5px;color:#777}
.bs-format-list{display:flex;flex-wrap:wrap;gap:10px;max-width:600px}
.bs-format{
  width:190px;border:1px solid #e3e3e3;border-radius:6px;padding:14px 16px;cursor:pointer;background:#fff;font-size:12.5px;
}
.bs-format:hover{border-color:var(--accent)}
.bs-format .bf-name{font-weight:600;margin-bottom:2px}
.bs-format .bf-desc{font-size:11px;color:#777}
.bs-format.disabled{opacity:.5;cursor:default}
.bs-format.disabled:hover{border-color:#e3e3e3}

/* Share / Export */
.bs-share-actions{display:flex;gap:18px;margin-top:10px}
.bs-share-actions .bs-action{flex:0 0 230px}

/* Account */
.bs-account{display:flex;gap:40px;align-items:flex-start}
.bs-acct-card{border:1px solid #e3e3e3;border-radius:6px;padding:26px 30px;width:300px;background:#fff}
.bs-avatar{width:70px;height:70px;border-radius:50%;background:#2b579a;color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:600;margin-bottom:14px}
.bs-acct-name{font-size:17px;font-weight:600}
.bs-acct-email{font-size:12.5px;color:#777;margin-bottom:14px}
.bs-acct-row{display:flex;justify-content:space-between;font-size:12.5px;padding:7px 0;border-top:1px solid #f0f0f0}
.bs-acct-row span:first-child{color:#666}
.bs-acct-row select{border:none;color:var(--accent);font-size:12.5px;background:transparent;cursor:pointer}
.bs-product{border:1px solid #e3e3e3;border-radius:6px;padding:22px 26px;max-width:430px;background:#fff}
.bs-product h3{font-size:15px;margin-bottom:8px}
.bs-product .bp-ver{font-size:12px;color:#777;margin-bottom:10px}
.bs-product .bp-line{font-size:12.5px;padding:4px 0;color:#444}

/* Options */
.bs-opt-sections{max-width:760px}
.bs-opt-section{margin-bottom:26px}
.bs-opt-section h3{font-size:14.5px;margin-bottom:12px;padding-bottom:6px;border-bottom:1px solid #eee}
.bs-opt-section label{display:flex;align-items:center;gap:9px;font-size:13px;margin-bottom:9px;cursor:pointer;color:#333}
.bs-opt-section select{height:27px;border:1px solid #ababab;border-radius:3px;padding:0 8px;background:#fff;min-width:200px;font-size:12.5px}
.bs-opt-section input[type=checkbox]{accent-color:var(--accent);width:15px;height:15px}
.bs-opt-note{font-size:11.5px;color:#888;margin:-4px 0 10px 24px}
.bs-opt-hr{border:none;border-top:1px solid #eee;margin:18px 0}
.bs-theme-choice{display:flex;gap:14px;flex-wrap:wrap}
.bs-theme-chip{
  width:120px;border:1px solid #d5d5d5;border-radius:5px;padding:10px;cursor:pointer;text-align:center;font-size:12px;background:#fff;
}
.bs-theme-chip .chip-bar{height:22px;border-radius:3px;margin-bottom:6px}
.bs-theme-chip:hover{border-color:var(--accent)}
.bs-theme-chip.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}

/* Print */
.bs-print-settings .ps-row{margin-bottom:14px}
.bs-print-settings label{display:block;font-size:11.5px;color:#666;margin-bottom:4px}
.bs-print-settings select,.bs-print-settings input{width:100%;height:28px;border:1px solid #ababab;border-radius:3px;padding:0 8px;background:#fff;font-size:12.5px}
.bs-print-settings .ps-printbtn{
  width:100%;background:var(--accent);color:#fff;border:none;border-radius:3px;height:32px;font-size:13px;font-weight:600;cursor:pointer;margin-bottom:6px;
}
.bs-print-settings .ps-printbtn:hover{background:#24508c}
.bs-print-settings .ps-copies{display:flex;align-items:center;gap:6px}
.bs-print-settings .ps-copies input{width:60px;text-align:center}
.bs-print-zoom{display:flex;align-items:center;gap:8px;margin-bottom:12px;justify-content:center}

/* Close */
.bs-close-panel{max-width:480px}