/* admin.css — Admin 后台 Minimalist Modern 布局
   靛蓝 #6366F1 · 暖白 #FAFAFA · 纯白卡片
   认证页：左右分栏（左品牌+特性 / 右表单）
   后台页：顶部导航 + Bento 网格 */

/* ---------- Admin 认证页：左右分栏 ---------- */
.admin-auth-page{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.admin-auth-info{display:flex;flex-direction:column;justify-content:center;padding:48px 56px;background:linear-gradient(135deg,#6366f1 0%,#818cf8 60%,#a5b4fc 100%);color:#fff;position:relative;overflow:hidden}
.admin-auth-info::before{content:"";position:absolute;top:-120px;right:-120px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.08)}
.admin-auth-info::after{content:"";position:absolute;bottom:-80px;left:-80px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.06)}
.admin-auth-info-brand{display:flex;align-items:center;gap:12px;margin-bottom:40px;position:relative;z-index:1}
.admin-auth-info-brand .brand-mark{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2)}
.admin-auth-info-brand .brand-mark img{width:28px;height:28px}
.admin-auth-info-brand span{font-size:18px;font-weight:700;color:#fff}
.admin-auth-info-title{font-size:36px;font-weight:800;line-height:1.25;margin:0 0 16px;position:relative;z-index:1}
.admin-auth-info-desc{font-size:15px;line-height:1.7;color:rgba(255,255,255,.85);margin:0 0 36px;max-width:420px;position:relative;z-index:1}
.admin-auth-info-features{display:grid;gap:16px;position:relative;z-index:1}
.admin-auth-info-feature{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;background:rgba(255,255,255,.1);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12)}
.admin-auth-info-feature-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.15);font-size:16px;font-weight:700;flex-shrink:0}
.admin-auth-info-feature-text{font-size:13.5px;line-height:1.4;color:rgba(255,255,255,.9)}
.admin-auth-info-feature-text strong{display:block;font-size:14px;font-weight:600;color:#fff;margin-bottom:2px}

.admin-auth-form-side{display:flex;align-items:center;justify-content:center;padding:40px 32px;background:#fafafa}
.admin-auth-card{width:min(440px,100%);background:#fff;border:1px solid #e2e8f0;border-radius:20px;box-shadow:0 12px 40px rgba(15,23,42,.08);padding:36px 32px}
.admin-auth-brand{display:flex;align-items:center;gap:10px;margin-bottom:28px;font-weight:700;font-size:15px;color:#0f172a}
.admin-auth-brand .brand-mark{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:#f8fafc;border:1px solid #e2e8f0}
.admin-auth-brand .brand-mark img{width:24px;height:24px}
.admin-auth-title{font-size:24px;font-weight:700;color:#0f172a;margin:0 0 6px}
.admin-auth-desc{font-size:14px;color:#64748b;margin:0 0 24px;line-height:1.6}
.admin-auth-form{display:grid;gap:16px}

/* ---------- Admin 后台布局：顶部导航 + Bento 网格 ---------- */
.admin-layout{min-height:100vh;background:#fafafa}

/* top navigation */
.admin-topnav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;height:64px;border-bottom:1px solid #e2e8f0;background:#fff;position:sticky;top:0;z-index:50;box-shadow:0 1px 3px rgba(15,23,42,.04)}
.admin-topnav-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:#0f172a;text-decoration:none;flex-shrink:0}
.admin-topnav-brand .brand-mark{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.15)}
.admin-topnav-brand .brand-mark img{width:24px;height:24px}
.admin-topnav-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.admin-topnav-nav a{display:inline-flex;align-items:center;padding:8px 16px;border-radius:10px;color:#64748b;font-size:13.5px;font-weight:500;text-decoration:none;transition:all .18s ease}
.admin-topnav-nav a:hover{background:#f8fafc;color:#0f172a}
.admin-topnav-nav a.active{background:rgba(99,102,241,.1);color:#6366f1;font-weight:600}
.admin-topnav-foot{display:flex;align-items:center;gap:8px;flex-shrink:0}
.admin-topnav-foot a{display:inline-flex;align-items:center;padding:7px 14px;border-radius:10px;color:#64748b;font-size:13px;font-weight:500;text-decoration:none;transition:all .18s ease}
.admin-topnav-foot a:hover{background:#f8fafc;color:#0f172a}

/* main content */
.admin-main{padding:24px 28px;min-width:0;max-width:1400px;margin:0 auto}
.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.admin-topbar h1{font-size:22px;font-weight:700;color:#0f172a;margin:0}
.admin-topbar .muted{font-size:13px;color:#64748b;margin:0}
.admin-topbar-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:#94a3b8}

/* Bento grid */
.admin-bento{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.admin-span-12{grid-column:span 12}
.admin-span-8{grid-column:span 8}
.admin-span-6{grid-column:span 6}
.admin-span-4{grid-column:span 4}
.admin-span-3{grid-column:span 3}

/* card */
.admin-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 2px 8px rgba(15,23,42,.04);padding:24px;margin-bottom:16px}
.admin-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid #f1f5f9;flex-wrap:wrap}
.admin-card-head h2{font-size:16px;font-weight:700;color:#0f172a;margin:0}
.admin-card-head h3{font-size:15px;font-weight:600;color:#0f172a;margin:0}
.admin-card-head .muted{font-size:13px;color:#64748b;margin:0}
.admin-eyebrow{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#6366f1;margin-bottom:4px}

/* KPI grid */
.admin-kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:16px}
.admin-kpi{padding:18px;border:1px solid #e2e8f0;border-radius:14px;background:#fff;box-shadow:0 1px 3px rgba(15,23,42,.03)}
.admin-kpi span{display:block;font-size:12px;color:#64748b;margin-bottom:4px}
.admin-kpi strong{display:block;font-size:26px;font-weight:700;color:#0f172a}
.admin-kpi.accent strong{color:#6366f1}

/* chart */
.admin-chart{min-height:240px;border:1px solid #e2e8f0;border-radius:12px;background:#fff}
.admin-chart-hero{min-height:300px}

/* grid layouts */
.admin-grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.admin-grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.admin-duo{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* field */
.admin-field{display:grid;gap:6px}
.admin-field label{font-size:13px;font-weight:500;color:#334155}
.admin-field input,.admin-field textarea,.admin-field select{width:100%;padding:10px 14px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#0f172a;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease}
.admin-field input:focus,.admin-field textarea:focus,.admin-field select:focus{border-color:#6366f1;box-shadow:0 0 0 3px rgba(99,102,241,.12);outline:none}
.admin-field input[readonly]{color:#334155;background:#f8fafc}
.admin-field textarea{resize:vertical;min-height:100px}
.ticket-reply-input{width:100%;min-height:80px;padding:10px 14px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#0f172a;font-size:14px;font-family:inherit;box-sizing:border-box;resize:vertical;transition:border-color .18s ease,box-shadow .18s ease}
.ticket-reply-input:focus{border-color:#6366f1;box-shadow:0 0 0 3px rgba(99,102,241,.12);outline:none}

/* input row */
.admin-input-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.admin-input-row input,.admin-input-row select{flex:1 1 160px;min-height:38px;padding:8px 12px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#0f172a;font-size:13px}
.admin-input-row input:focus,.admin-input-row select:focus{border-color:#6366f1;box-shadow:0 0 0 3px rgba(99,102,241,.12);outline:none}

/* buttons */
.admin-btn-primary{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:1px solid #6366f1;border-radius:10px;background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:filter .18s ease,box-shadow .18s ease;box-shadow:0 4px 14px rgba(99,102,241,.2)}
.admin-btn-primary:hover{filter:brightness(1.06);box-shadow:0 6px 20px rgba(99,102,241,.3)}
.admin-btn-primary:active{transform:translateY(1px)}
.admin-btn-primary:disabled{opacity:.5;cursor:not-allowed}
.admin-btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#0f172a;font-size:13px;font-weight:500;cursor:pointer;transition:all .18s ease}
.admin-btn-secondary:hover{border-color:#cbd5e1;background:#f8fafc}
.admin-btn-danger{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:1px solid #dc2626;border-radius:10px;background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;font-size:13px;font-weight:600;cursor:pointer;box-shadow:0 4px 14px rgba(220,38,38,.2)}
.admin-btn-danger:hover{filter:brightness(1.06)}
.admin-btn-copy{padding:8px 14px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#64748b;font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:all .18s ease}
.admin-btn-copy:hover{border-color:#6366f1;color:#6366f1}

/* range switch */
.admin-range-switch{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.admin-range-btn{padding:6px 14px;border:1px solid #e2e8f0;border-radius:8px;background:#fff;color:#64748b;font-size:12.5px;font-weight:500;cursor:pointer;transition:all .18s ease}
.admin-range-btn:hover{border-color:#cbd5e1}
.admin-range-btn.active{color:#fff;border-color:#6366f1;background:linear-gradient(135deg,#6366f1,#818cf8);box-shadow:0 2px 8px rgba(99,102,241,.25)}

/* table */
.admin-table-box{border:1px solid #e2e8f0;border-radius:12px;overflow:auto;background:#fff}
.admin-table-box table{width:100%;border-collapse:collapse;font-size:13px}
.admin-table-box th{padding:10px 12px;text-align:left;font-weight:600;color:#64748b;background:#f8fafc;border-bottom:1px solid #e2e8f0;white-space:nowrap}
.admin-table-box td{padding:10px 12px;border-bottom:1px solid #f1f5f9;color:#0f172a}
.admin-table-box tr:hover td{background:rgba(99,102,241,.04)}
.admin-table-box tr:nth-child(even) td{background:#fafafa}

/* alert */
.admin-alert{padding:12px 14px;border-radius:10px;font-size:13px;border:1px solid #e2e8f0;background:#f8fafc;color:#334155}
.admin-alert-info{border-color:rgba(99,102,241,.2);background:rgba(99,102,241,.06);color:#6366f1}
.admin-alert-success{border-color:rgba(22,163,74,.2);background:rgba(22,163,74,.06);color:#16a34a}
.admin-alert-error{border-color:rgba(220,38,38,.2);background:rgba(220,38,38,.06);color:#dc2626}

/* empty state */
.admin-empty{padding:24px;border:1px dashed #cbd5e1;border-radius:10px;background:#f8fafc;color:#94a3b8;font-size:13px;text-align:center}

/* hr */
.admin-hr{border:0;border-top:1px solid #f1f5f9;margin:20px 0}

/* checkbox */
.admin-checkbox{display:flex;align-items:flex-start;gap:10px;cursor:pointer;padding:14px;border:1px solid #e2e8f0;border-radius:12px;background:#fff}
.admin-checkbox input{margin-top:2px;accent-color:#6366f1}
.admin-checkbox span{font-size:14px;color:#0f172a;font-weight:500}
.admin-checkbox small{display:block;font-size:12px;color:#94a3b8;margin-top:4px}

/* status badge */
.admin-status{display:inline-flex;align-items:center;padding:3px 10px;border-radius:6px;font-size:12px;font-weight:600;background:#f1f5f9;color:#64748b}
.admin-status.active{color:#16a34a;background:rgba(22,163,74,.08)}
.admin-status.banned,.admin-status.expired{color:#dc2626;background:rgba(220,38,38,.08)}
.admin-status.pending,.admin-status.frozen{color:#d97706;background:rgba(217,119,6,.08)}

/* pagination */
.admin-pagination{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:14px}
.admin-pagination button{padding:6px 12px;border:1px solid #e2e8f0;border-radius:8px;background:#fff;color:#64748b;font-size:13px;cursor:pointer}
.admin-pagination button.active{border-color:#6366f1;color:#6366f1;background:rgba(99,102,241,.06)}
.admin-pagination button:disabled{opacity:.4;cursor:not-allowed}

/* bullet list */
.admin-bullet{padding-left:20px;display:grid;gap:8px;color:#334155;font-size:13px;line-height:1.6}
.admin-bullet li::marker{color:#6366f1}

/* key item */
.admin-key-item{padding:16px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;display:grid;gap:10px}
.admin-key-code{font-family:"JetBrains Mono",Consolas,monospace;font-size:13px;color:#0f172a;word-break:break-all;padding:8px 10px;border-radius:8px;background:#f8fafc;border:1px solid #e2e8f0}

/* ticket */
.admin-ticket-item{padding:16px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;display:grid;gap:8px}

/* responsive */
@media (max-width:1024px){
  .admin-bento{grid-template-columns:repeat(6,1fr)}
  .admin-span-12{grid-column:span 6}
  .admin-span-8{grid-column:span 6}
  .admin-span-6{grid-column:span 6}
  .admin-span-4{grid-column:span 3}
  .admin-span-3{grid-column:span 3}
}
@media (max-width:768px){
  .admin-topnav{height:auto;flex-wrap:wrap;padding:12px 16px}
  .admin-topnav-nav{order:3;width:100%;justify-content:flex-start;flex-wrap:wrap;margin-top:8px}
  .admin-main{padding:16px}
  .admin-bento{grid-template-columns:1fr}
  .admin-span-12,.admin-span-8,.admin-span-6,.admin-span-4,.admin-span-3{grid-column:span 1}
  .admin-duo{grid-template-columns:1fr}
}
@media (max-width:600px){
  .admin-kpi-grid{grid-template-columns:repeat(2,1fr)}
  .admin-grid-2,.admin-grid-3{grid-template-columns:1fr}
}
@media (max-width:400px){
  .admin-kpi-grid{grid-template-columns:1fr}
}

/* motion */
@keyframes admin-rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.admin-auth-card,.admin-card,.admin-kpi{animation:admin-rise .5s cubic-bezier(.22,1,.36,1) both}
.admin-card:nth-child(2){animation-delay:.06s}
.admin-card:nth-child(3){animation-delay:.12s}
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms !important}}