/* ============================================
   餐谋 Canmore v1.0 - 后台管理系统样式
   ============================================ */

.admin-layout{
  display:flex;
  height:100vh;
  overflow:hidden;
  background:var(--bg-primary);
}

/* ── Side Nav ── */
.admin-sidebar{
  width:240px;
  background:var(--text-primary);
  color:var(--text-inverse);
  display:flex;
  flex-direction:column;
  flex-shrink:0;
}
.admin-sidebar .admin-brand{
  padding:20px;
  display:flex;
  align-items:center;
  gap:10px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.admin-brand .brand-logo{
  width:36px;height:36px;
  border-radius:var(--radius-md);
  background:linear-gradient(135deg,var(--brand-600),var(--brand-400));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:18px;
}
.admin-brand .brand-text h3{font-size:var(--text-md);font-weight:700}
.admin-brand .brand-text span{font-size:10px;color:var(--text-tertiary);display:block}

.admin-nav{flex:1;padding:12px 10px;overflow-y:auto}
.admin-nav .nav-section{
  font-size:10px;text-transform:uppercase;
  color:rgba(255,255,255,0.35);
  padding:12px 12px 6px;
  font-weight:600;letter-spacing:0.05em;
}
.admin-nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--radius-md);
  cursor:pointer;
  transition:all var(--transition);
  font-size:var(--text-sm);
  color:rgba(255,255,255,0.65);
  margin-bottom:2px;
}
.admin-nav-item:hover{color:#fff;background:rgba(255,255,255,0.08)}
.admin-nav-item.active{
  background:var(--brand-600);
  color:#fff;
  font-weight:600;
}
.admin-nav-item svg{width:18px;height:18px;flex-shrink:0}
.admin-nav-item .nav-badge{
  margin-left:auto;
  font-size:10px;
  background:var(--status-red);
  color:#fff;
  padding:1px 6px;
  border-radius:var(--radius-full);
}

.admin-sidebar-footer{
  padding:12px 16px;
  border-top:1px solid rgba(255,255,255,0.08);
  display:flex;
  align-items:center;
  gap:10px;
  font-size:var(--text-sm);
}
.admin-sidebar-footer .user-avatar{
  width:32px;height:32px;
  border-radius:var(--radius-full);
  background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;
}

/* ── Main Content ── */
.admin-main{
  flex:1;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  min-width:0;
}
.admin-topbar{
  padding:14px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--bg-white);
  border-bottom:1px solid var(--border-light);
}
.admin-topbar h2{font-size:var(--text-xl);font-weight:700}
.admin-topbar .topbar-actions{display:flex;align-items:center;gap:12px}

.admin-content{
  flex:1;
  overflow-y:auto;
  padding:24px 28px;
}
.admin-content .page-section{display:none}
.admin-content .page-section.active{display:block;animation:fadeIn 0.25s ease}

/* ── Dashboard Stats ── */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-bottom:24px;
}
.stat-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.stat-card .stat-label{font-size:var(--text-xs);color:var(--text-secondary);margin-bottom:6px}
.stat-card .stat-value{font-family:var(--font-number);font-size:var(--text-3xl);font-weight:700;color:var(--text-primary)}
.stat-card .stat-change{
  font-size:var(--text-xs);
  margin-top:4px;
  display:flex;
  align-items:center;
  gap:4px;
}
.stat-change.up{color:var(--status-green)}
.stat-change.down{color:var(--status-red)}

/* ── Chart Placeholder ── */
.chart-row{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:16px;
  margin-bottom:24px;
}
.chart-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.chart-card h4{font-size:var(--text-sm);font-weight:600;margin-bottom:16px;color:var(--text-secondary)}
.chart-placeholder{
  height:200px;
  background:var(--bg-secondary);
  border-radius:var(--radius-md);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text-tertiary);
  font-size:var(--text-sm);
}

/* ── Simple Bar Chart ── */
.bar-chart{display:flex;align-items:flex-end;gap:12px;height:180px;padding-top:20px}
.bar-group{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}
.bar-group .bar{width:100%;max-width:40px;border-radius:var(--radius-sm) var(--radius-sm) 0 0;transition:all 0.3s ease}
.bar-group .bar-label{font-size:10px;color:var(--text-tertiary);text-align:center}

/* ── Tables ── */
.admin-table-wrap{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.admin-table-header{
  padding:16px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--border-light);
}
.admin-table-header h4{font-size:var(--text-md);font-weight:600}
.admin-table{
  width:100%;
  border-collapse:collapse;
}
.admin-table th{
  text-align:left;
  padding:10px 16px;
  font-size:var(--text-xs);
  font-weight:600;
  color:var(--text-secondary);
  background:var(--bg-secondary);
  border-bottom:1px solid var(--border-light);
}
.admin-table td{
  padding:12px 16px;
  font-size:var(--text-sm);
  border-bottom:1px solid var(--border-light);
  color:var(--text-primary);
}
.admin-table tr:hover td{background:var(--bg-hover)}
.admin-table .user-cell{display:flex;align-items:center;gap:8px}
.admin-table .user-cell-avatar{
  width:30px;height:30px;
  border-radius:var(--radius-full);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:12px;color:#fff;
}

/* ── Feedback Distribution ── */
.feedback-dist{
  display:flex;
  align-items:center;
  gap:12px;
}
.feedback-dist .bar-track{
  flex:1;
  height:8px;
  border-radius:var(--radius-full);
  background:var(--bg-secondary);
  display:flex;
  overflow:hidden;
}
.feedback-dist .bar-seg-good{background:var(--status-green)}
.feedback-dist .bar-seg-bad{background:var(--status-red)}

/* ── Bad Case Cards ── */
.badcase-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px}
.badcase-card{
  background:var(--bg-white);
  border-radius:var(--radius-md);
  padding:14px 16px;
  border:1px solid var(--border-light);
  cursor:pointer;
  transition:all var(--transition);
}
.badcase-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-md)}
.badcase-card .bc-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:8px;
}
.badcase-card .bc-tag{font-size:10px;font-weight:600}
.badcase-card .bc-question{font-size:var(--text-sm);color:var(--text-primary);margin-bottom:6px}
.badcase-card .bc-answer{font-size:var(--text-xs);color:var(--text-secondary);padding:10px;background:var(--bg-secondary);border-radius:var(--radius-sm);line-height:1.5}
.badcase-card .bc-footer{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-size:var(--text-xs);color:var(--text-tertiary)}

/* ── Annotation Modal ── */
.modal-overlay{
  position:fixed;
  inset:0;
  background:var(--bg-overlay);
  z-index:200;
  display:flex;
  align-items:center;
  justify-content:center;
  animation:fadeIn 0.2s ease;
}
.modal-overlay.hidden{display:none}
.modal{
  background:var(--bg-white);
  border-radius:var(--radius-xl);
  width:700px;
  max-height:80vh;
  overflow-y:auto;
  box-shadow:0 20px 60px rgba(0,0,0,0.2);
}
.modal-header{
  padding:16px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--border-light);
  position:sticky;
  top:0;
  background:var(--bg-white);
  z-index:2;
}
.modal-header h3{font-size:var(--text-lg);font-weight:700}
.modal-body{padding:20px 24px}
.modal-body .annotation-field{margin-bottom:16px}
.modal-body .annotation-field label{
  display:block;
  font-size:var(--text-sm);
  font-weight:600;
  margin-bottom:6px;
  color:var(--text-primary);
}
.modal-body .annotation-field .field-original{
  padding:12px;
  background:var(--bg-secondary);
  border-radius:var(--radius-md);
  font-size:var(--text-sm);
  color:var(--text-secondary);
  margin-bottom:8px;
  line-height:1.6;
}
.modal-body textarea{
  width:100%;
  padding:12px;
  border-radius:var(--radius-md);
  border:1px solid var(--border-light);
  font-size:var(--text-sm);
  line-height:1.6;
  resize:vertical;
  min-height:100px;
  font-family:var(--font-sans);
}
.modal-body textarea:focus{border-color:var(--brand-500);outline:none}
.modal-footer{
  padding:12px 24px 20px;
  display:flex;
  justify-content:flex-end;
  gap:8px;
}

/* ── Export Panel ── */
.export-panel{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
  margin-top:20px;
}
.export-panel h4{font-size:var(--text-md);font-weight:600;margin-bottom:16px}
.export-filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.export-filters select,.export-filters input{
  padding:8px 12px;
  border-radius:var(--radius-md);
  border:1px solid var(--border-light);
  font-size:var(--text-sm);
  background:var(--bg-white);
}
.export-preview{
  background:var(--bg-secondary);
  border-radius:var(--radius-md);
  padding:12px 16px;
  font-family:monospace;
  font-size:12px;
  max-height:120px;
  overflow-y:auto;
  margin-bottom:12px;
  white-space:pre-wrap;
  color:var(--text-secondary);
}

/* ── Config Tables (语料配置) ── */
.config-section{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* ── Search/Filter Bar ── */
.filter-bar{
  display:flex;
  gap:10px;
  align-items:center;
  margin-bottom:16px;
}
.filter-bar input,.filter-bar select{
  padding:8px 12px;
  border-radius:var(--radius-md);
  border:1px solid var(--border-light);
  font-size:var(--text-sm);
  background:var(--bg-white);
}
.filter-bar input{flex:1;max-width:300px}
.filter-bar select{min-width:140px}

/* ── Pagination ── */
.pagination{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:8px;
  padding:12px 16px;
  font-size:var(--text-sm);
}
.pagination button{
  width:32px;height:32px;
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  font-size:var(--text-sm);
  border:1px solid var(--border-light);
  color:var(--text-primary);
}
.pagination button:hover{background:var(--bg-hover)}
.pagination button.active{background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.pagination button:disabled{opacity:0.4;cursor:default}