*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f5f6fa;--bg-card:#fff;--bg-sidebar:#1a1a2e;
  --text:#2d3436;--text-muted:#636e72;--text-sidebar:#a0a0b8;
  --accent:#6c5ce7;--accent-light:#a29bfe;
  --border:#e0e0e0;--danger:#e74c3c;--success:#2ecc71;--warning:#f39c12;
  --radius:10px;--shadow:0 2px 12px rgba(0,0,0,.08);
}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg);color:var(--text);min-height:100vh;
}
/* Login */
.login-page{
  display:flex;align-items:center;justify-content:center;
  min-height:100vh;background:linear-gradient(135deg,#0f0f1e,#1a1a2e);
}
.login-card{
  background:var(--bg-card);border-radius:16px;padding:40px 36px;
  width:100%;max-width:400px;box-shadow:0 8px 40px rgba(0,0,0,.2);
  text-align:center;
}
.login-logo{font-size:48px;margin-bottom:8px}
.login-card h2{font-size:22px;font-weight:700;margin-bottom:4px}
.login-sub{font-size:13px;color:var(--text-muted);margin-bottom:28px}
.login-error{color:var(--danger);font-size:13px;margin-bottom:12px;min-height:20px}
/* Layout */
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{
  width:220px;background:var(--bg-sidebar);flex-shrink:0;
  display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:100;
}
.admin-brand{
  display:flex;align-items:center;gap:10px;padding:20px 18px;
  font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid rgba(255,255,255,.08);
}
.admin-logo{font-size:24px}
.admin-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:3px}
.admin-nav-item{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:8px;
  color:var(--text-sidebar);text-decoration:none;font-size:14px;
  transition:all .15s;
}
.admin-nav-item:hover{background:rgba(255,255,255,.05);color:#fff}
.admin-nav-item.active{background:rgba(108,92,231,.2);color:var(--accent-light);font-weight:600}
.admin-sidebar-footer{
  padding:16px 14px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;
}
.admin-user-info{display:flex;align-items:center;gap:8px;color:#ccc;font-size:13px}
.admin-avatar{font-size:20px}
.admin-main{flex:1;margin-left:220px;padding:28px 32px;min-height:100vh}
/* Page header */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.page-title{font-size:22px;font-weight:700}
.page-actions{display:flex;gap:10px}
/* Cards */
.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 24px;margin-bottom:20px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-size:16px;font-weight:700}
/* Stats grid */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}
.stat-card{
  background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:20px 24px;display:flex;align-items:center;gap:16px;
}
.stat-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px}
.stat-icon.purple{background:rgba(108,92,231,.1);color:var(--accent)}
.stat-icon.green{background:rgba(46,204,113,.1);color:var(--success)}
.stat-icon.blue{background:rgba(74,144,226,.1);color:#4a90e2}
.stat-icon.orange{background:rgba(243,156,18,.1);color:var(--warning)}
.stat-value{font-size:26px;font-weight:800}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:2px}
/* Table */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 14px;text-align:left;font-size:14px;border-bottom:1px solid var(--border)}
th{font-weight:600;color:var(--text-muted);font-size:13px;background:var(--bg);border-radius:4px}
tr:hover{background:rgba(108,92,231,.02)}
/* Tags */
.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600}
.tag-admin{background:rgba(108,92,231,.1);color:var(--accent)}
.tag-user{background:rgba(74,144,226,.1);color:#4a90e2}
.tag-active{background:rgba(46,204,113,.1);color:var(--success)}
.tag-disabled{background:rgba(231,76,60,.1);color:var(--danger)}
.tag-enabled{background:rgba(46,204,113,.1);color:var(--success)}
/* Forms */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:10px 14px;border:1px solid var(--border);
  border-radius:8px;font-size:14px;font-family:inherit;
  background:var(--bg-card);color:var(--text);
  transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--accent);
}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 20px;border-radius:8px;font-size:14px;font-weight:600;
  cursor:pointer;border:none;transition:all .15s;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{opacity:.9}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{opacity:.9}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-xs{padding:3px 10px;font-size:12px}
.btn-full{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed}
/* Modal */
.modal-overlay{
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,.5);z-index:200;
  display:flex;align-items:center;justify-content:center;
}
.modal{
  background:var(--bg-card);border-radius:14px;
  width:100%;max-width:480px;max-height:90vh;overflow-y:auto;
  box-shadow:0 12px 48px rgba(0,0,0,.2);
}
.modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;border-bottom:1px solid var(--border);
}
.modal-header h3{font-size:18px;font-weight:700}
.modal-body{padding:24px}
.modal-footer{
  display:flex;justify-content:flex-end;gap:10px;
  padding:16px 24px;border-top:1px solid var(--border);
}
.btn-close{
  background:none;border:none;font-size:28px;color:var(--text-muted);
  cursor:pointer;line-height:1;padding:4px;
}
.btn-close:hover{color:var(--text)}
/* Modal Box (banner etc.) */
.modal-box{
  background:var(--bg-card);border-radius:16px;
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
  box-shadow:0 20px 60px rgba(0,0,0,.15);
  animation:modalIn .25s cubic-bezier(.4,0,.2,1);
}
@keyframes modalIn{from{transform:translateY(20px) scale(.96);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}
.modal-box-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:24px 28px 16px;
}
.modal-box-header h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:8px}
.modal-box-header .modal-icon{font-size:22px}
.modal-box-body{padding:4px 28px 8px}
.modal-box-footer{
  display:flex;justify-content:flex-end;gap:10px;
  padding:16px 28px 24px;
}
.modal-box .form-group{margin-bottom:16px}
.modal-box .form-group label{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px}
.modal-box .form-group label .req{color:var(--danger);font-size:12px}
.modal-box .form-group input[type="text"],
.modal-box .form-group input[type="number"]{
  padding:11px 14px;border:1.5px solid var(--border);
  border-radius:10px;font-size:14px;font-family:inherit;
  background:var(--bg);color:var(--text);
  transition:border-color .2s,box-shadow .2s;
}
.modal-box .form-group input:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(108,92,231,.1);
}
/* Image upload zone */
.img-upload-row{display:flex;gap:10px;align-items:stretch}
.img-upload-row .input{flex:1}
.img-upload-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:0 16px;border-radius:10px;font-size:13px;font-weight:600;
  cursor:pointer;white-space:nowrap;border:1.5px dashed var(--accent);
  color:var(--accent);background:rgba(108,92,231,.06);
  transition:all .15s;
}
.img-upload-btn:hover{background:rgba(108,92,231,.12)}
.img-preview-box{
  margin-top:10px;border-radius:12px;overflow:hidden;
  background:var(--bg);border:1px solid var(--border);
  display:none;
}
.img-preview-box.has-img{display:block}
.img-preview-box img{width:100%;max-height:200px;object-fit:cover;display:block}
.img-preview-remove{
  position:absolute;top:8px;right:8px;
  background:rgba(0,0,0,.6);color:#fff;border:none;
  width:28px;height:28px;border-radius:50%;font-size:16px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .15s;
}
.img-preview-remove:hover{background:rgba(0,0,0,.8)}
.img-preview-wrap{position:relative}
/* Checkbox row */
.check-row{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;border-radius:10px;
  background:var(--bg);border:1px solid var(--border);
  cursor:pointer;transition:border-color .15s;
}
.check-row:hover{border-color:var(--accent)}
.check-row input[type="checkbox"]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer}
.check-row label{margin:0;font-weight:600;font-size:14px;cursor:pointer;color:var(--text)}
/* Modal actions (fallback) */
.modal-actions{display:flex;justify-content:flex-end;gap:10px;padding:16px 0 0}
@media(max-width:768px){
  .modal-box{max-width:100%;border-radius:16px 16px 0 0;margin:0}
  .modal-overlay{padding:0;align-items:flex-end}
}
/* Toast */
.toast-container{position:fixed;top:20px;right:20px;z-index:300;display:flex;flex-direction:column;gap:8px}
.toast{
  padding:12px 20px;border-radius:8px;font-size:14px;color:#fff;
  box-shadow:0 4px 16px rgba(0,0,0,.2);
  animation:slideIn .3s ease;max-width:380px;
}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.info{background:var(--accent)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
/* Empty state */
.empty-state{text-align:center;padding:40px;color:var(--text-muted);font-size:14px}
/* Responsive */
@media(max-width:768px){
  .admin-sidebar{width:60px}
  .admin-brand span:not(.admin-logo),.admin-nav-item span:not(.admin-nav-item svg),
  .admin-sidebar-footer .admin-user-info span,.admin-sidebar-footer .btn{display:none}
  .admin-sidebar-footer{justify-content:center}
  .admin-main{margin-left:60px;padding:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}