/* ============================
   通用授权管理系统 — Premium UI
   ============================ */

:root {
  --bg: #f1f5f9; --card-bg: #fff; --text: #1e293b; --text-secondary: #64748b; --text-muted: #94a3b8; --border: #e2e8f0;
  --primary: #6366f1; --primary-hover: #4f46e5; --primary-light: #eef2ff;
  --success: #10b981; --success-light: #d1fae5;
  --warning: #f59e0b; --warning-light: #fef3c7;
  --danger: #ef4444; --danger-light: #fee2e2;
  --sidebar-w: 170px; --topbar-h: 56px;
  --radius: 10px; --shadow: 0 1px 3px rgba(0,0,0,.06); --shadow-md: 0 4px 12px rgba(0,0,0,.08);
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif; background:var(--bg); color:var(--text); min-height:100vh; line-height:1.5; }
a { color:var(--primary); text-decoration:none; }
.hidden { display:none !important; }

/* ====== Login ====== */
.login-page { min-height:100vh; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg, #0f172a 0%, #1e293b 40%, #312e81 100%); padding:20px; position:relative; overflow:hidden; }
.login-page::before { content:''; position:absolute; inset:0; background:radial-gradient(ellipse at 30% 50%, rgba(99,102,241,.15) 0%, transparent 60%); }
.login-card { position:relative; background:rgba(255,255,255,.95); backdrop-filter:blur(20px); border-radius:20px; padding:44px 40px; width:100%; max-width:420px; box-shadow:0 25px 80px rgba(0,0,0,.3); }
.login-card .logo { text-align:center; margin-bottom:28px; }
.login-card .logo .icon-wrap { display:inline-flex; align-items:center; justify-content:center; width:72px; height:72px; border-radius:18px; background:linear-gradient(135deg, #6366f1, #8b5cf6); color:#fff; font-size:32px; margin-bottom:12px; box-shadow:0 8px 24px rgba(99,102,241,.35); }
.login-card .logo h1 { font-size:22px; font-weight:800; letter-spacing:-.5px; }
.login-card .logo p { font-size:13px; color:var(--text-muted); margin-top:4px; }
.form-group { margin-bottom:18px; }
.form-group label { display:block; font-size:12px; font-weight:600; color:var(--text-secondary); margin-bottom:6px; letter-spacing:.3px; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:10px 14px; border:1.5px solid var(--border); border-radius:8px; font-size:13px; color:var(--text); background:#fff; transition:border .2s,box-shadow .2s; outline:none; font-family:inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(99,102,241,.12); }
.form-group textarea { resize:vertical; min-height:60px; }

.btn { display:inline-flex; align-items:center; justify-content:center; gap:6px; padding:10px 20px; border-radius:8px; font-size:13px; font-weight:600; border:none; cursor:pointer; transition:all .2s; font-family:inherit; }
.btn-primary { background:linear-gradient(135deg, #6366f1, #4f46e5); color:#fff; box-shadow:0 4px 12px rgba(99,102,241,.35); }
.btn-primary:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(99,102,241,.45); }
.btn-primary:disabled { opacity:.5; cursor:not-allowed; transform:none; }
.btn-outline { background:#fff; color:var(--text-secondary); border:1.5px solid var(--border); }
.btn-outline:hover { background:var(--bg); }
.btn-danger { background:var(--danger); color:#fff; }
.btn-danger:hover { background:#dc2626; }
.btn-success { background:var(--success); color:#fff; }
.btn-success:hover { background:#059669; }
.btn-sm { padding:6px 12px; font-size:11px; border-radius:6px; }
.btn-block { width:100%; }
.btn-icon { width:34px; height:34px; padding:0; border-radius:8px; }

/* ====== Admin Layout ====== */
.admin-layout { display:flex; min-height:100vh; }
.sidebar { position:fixed; left:0; top:0; bottom:0; width:var(--sidebar-w); background:#fff; border-right:1px solid var(--border); display:flex; flex-direction:column; z-index:200; transition:transform .3s; }
.sidebar-brand { padding:18px 20px; display:flex; align-items:center; gap:10px; border-bottom:1px solid var(--border); }
.sidebar-brand .brand-icon { width:38px; height:38px; border-radius:10px; background:linear-gradient(135deg, #6366f1, #8b5cf6); color:#fff; display:flex; align-items:center; justify-content:center; font-size:18px; }
.sidebar-brand h2 { font-size:15px; font-weight:700; letter-spacing:-.3px; }
.sidebar-section { padding:12px 14px; font-size:10px; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; }
.sidebar-nav { flex:1; overflow-y:auto; padding:0 10px; }
.sidebar-nav .nav-item { display:flex; align-items:center; gap:10px; padding:10px 12px; margin-bottom:2px; border-radius:8px; cursor:pointer; font-size:13px; font-weight:500; color:var(--text-secondary); transition:all .15s; border:none; background:none; width:100%; text-align:left; }
.sidebar-nav .nav-item:hover { background:var(--bg); color:var(--text); }
.sidebar-nav .nav-item.active { background:var(--primary-light); color:var(--primary); font-weight:600; }
.sidebar-nav .nav-item i { width:20px; text-align:center; font-size:14px; }
.sidebar-nav .nav-item .nav-badge { margin-left:auto; font-size:10px; padding:1px 6px; border-radius:8px; background:var(--danger-light); color:#991b1b; }
.sidebar-footer { padding:12px; border-top:1px solid var(--border); }
.sidebar-footer .user-info { display:flex; align-items:center; gap:10px; padding:8px; }
.sidebar-footer .user-avatar { width:32px; height:32px; border-radius:8px; background:var(--primary-light); color:var(--primary); display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:700; }
.sidebar-footer .user-name { font-size:12px; font-weight:600; }
.sidebar-footer .user-role { font-size:10px; color:var(--text-muted); }

.main-content { flex:1; margin-left:var(--sidebar-w); min-height:100vh; }
.topbar { position:sticky; top:0; background:rgba(255,255,255,.85); backdrop-filter:blur(12px); height:var(--topbar-h); display:flex; align-items:center; justify-content:space-between; padding:0 24px; border-bottom:1px solid var(--border); z-index:100; }
.topbar h3 { font-size:15px; font-weight:700; }
.topbar-actions { display:flex; align-items:center; gap:10px; }
.container { max-width:1200px; margin:0 auto; padding:24px; }

/* ====== Stats ====== */
.stat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:24px; }
.stat-card { background:#fff; border-radius:var(--radius); padding:18px 20px; box-shadow:var(--shadow); display:flex; align-items:center; gap:14px; transition:transform .15s,box-shadow .15s; }
.stat-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.stat-card .stat-icon { width:46px; height:46px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:20px; flex-shrink:0; }
.stat-card.total .stat-icon { background:var(--primary-light); color:var(--primary); }
.stat-card.active .stat-icon { background:var(--success-light); color:var(--success); }
.stat-card.expiring .stat-icon { background:var(--warning-light); color:var(--warning); }
.stat-card.apps .stat-icon { background:#ede9fe; color:#7c3aed; }
.stat-info h4 { font-size:26px; font-weight:800; letter-spacing:-.5px; line-height:1; }
.stat-info p { font-size:11px; color:var(--text-secondary); margin-top:3px; }

/* ====== Cards ====== */
.card { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); margin-bottom:20px; }
.card-header { padding:14px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.card-header h3 { font-size:14px; font-weight:600; }
.card-body { padding:20px; }
.card-body.no-pad { padding:0; }

/* ====== App Grid ====== */
.app-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:14px; margin-bottom:20px; }
.app-card { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); padding:20px; cursor:pointer; transition:all .2s; border:2px solid transparent; position:relative; }
.app-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); border-color:var(--primary); }
.app-card.active-app { border-color:var(--primary); box-shadow:0 0 0 3px rgba(99,102,241,.12); }
.app-card .app-icon { width:44px; height:44px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:20px; margin-bottom:12px; background:linear-gradient(135deg, #6366f1, #8b5cf6); color:#fff; }
.app-card h4 { font-size:14px; font-weight:700; margin-bottom:4px; }
.app-card p { font-size:11px; color:var(--text-muted); line-height:1.4; }
.app-card .app-meta { margin-top:10px; display:flex; gap:8px; align-items:center; }
.app-card .app-actions { position:absolute; top:14px; right:14px; display:flex; gap:4px; opacity:0; transition:opacity .2s; }
.app-card:hover .app-actions { opacity:1; }

/* ====== Table ====== */
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; }
table th { padding:10px 14px; text-align:left; border-bottom:2px solid var(--border); font-size:11px; font-weight:600; color:var(--text-secondary); text-transform:uppercase; letter-spacing:.5px; background:#f8fafc; white-space:nowrap; }
table td { padding:10px 14px; border-bottom:1px solid var(--border); font-size:12px; }
table tr:hover td { background:#f8fafc; }

/* ====== Badges ====== */
.badge { display:inline-block; padding:3px 10px; border-radius:12px; font-size:10px; font-weight:600; }
.badge-success { background:var(--success-light); color:#065f46; }
.badge-danger { background:var(--danger-light); color:#991b1b; }
.badge-warning { background:var(--warning-light); color:#92400e; }
.badge-info { background:var(--info); color:#fff; --info: #3b82f6; }

/* ====== Code ====== */
.code-display { font-family:'SF Mono','Fira Code','Courier New',monospace; font-size:13px; font-weight:700; color:var(--primary); letter-spacing:1px; background:var(--primary-light); padding:6px 10px; border-radius:6px; }

/* ====== Form Row ====== */
.form-row { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.form-hint { font-size:11px; color:var(--text-muted); margin-top:6px; display:flex; align-items:center; gap:4px; }
.form-hint code { background:var(--primary-light); padding:1px 5px; border-radius:3px; font-size:10px; }

/* ====== Modal ====== */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.5); display:flex; align-items:center; justify-content:center; z-index:1000; padding:20px; }
.modal { background:#fff; border-radius:14px; box-shadow:0 20px 60px rgba(0,0,0,.2); width:100%; max-width:500px; max-height:85vh; display:flex; flex-direction:column; }
.modal-header { padding:14px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; flex-shrink:0; }
.modal-header h3 { font-size:14px; font-weight:600; }
.modal-close { background:none; border:none; font-size:18px; color:var(--text-muted); cursor:pointer; }
.modal-body { padding:20px; overflow-y:auto; }
.modal-footer { padding:12px 20px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:8px; }

/* ====== Tabs ====== */
.tabs { display:flex; gap:0; border-bottom:2px solid var(--border); margin-bottom:16px; }
.tab-btn { padding:8px 16px; cursor:pointer; font-size:12px; font-weight:600; color:var(--text-secondary); border:none; background:none; border-bottom:2px solid transparent; margin-bottom:-2px; transition:all .2s; }
.tab-btn:hover { color:var(--text); }
.tab-btn.active { color:var(--primary); border-bottom-color:var(--primary); }

/* ====== Empty State ====== */
.empty-state { text-align:center; padding:40px; color:var(--text-muted); font-size:13px; }
.empty-state i { display:block; font-size:36px; margin-bottom:10px; opacity:.3; }

/* ====== Toast ====== */
#toast-container { position:fixed; top:16px; right:16px; z-index:9999; }
.toast { padding:10px 16px; border-radius:8px; color:#fff; font-size:12px; margin-bottom:6px; box-shadow:0 4px 12px rgba(0,0,0,.15); animation:slideIn .3s ease; display:flex; align-items:center; gap:6px; max-width:380px; }
.toast.success { background:var(--success); }
.toast.error { background:var(--danger); }
.toast.warning { background:var(--warning); }
.toast.info { background:#3b82f6; }
@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }

/* ====== Pagination ====== */
.pagination { display:flex; justify-content:center; align-items:center; gap:4px; padding:12px 0; }
.pagination button { width:32px; height:32px; border:1px solid var(--border); background:#fff; border-radius:6px; font-size:12px; cursor:pointer; color:var(--text-secondary); transition:all .15s; }
.pagination button:hover { background:var(--bg); border-color:var(--primary); color:var(--primary); }
.pagination button.active { background:var(--primary); color:#fff; border-color:var(--primary); font-weight:600; }
.pagination button:disabled { opacity:.4; cursor:not-allowed; }
.pagination span { padding:0 4px; color:var(--text-muted); }

/* ====== Hamburger Menu ====== */
.btn-menu-toggle { display:none; width:34px; height:34px; padding:0; align-items:center; justify-content:center; border-radius:8px; background:transparent; border:1.5px solid var(--border); color:var(--text-secondary); font-size:16px; cursor:pointer; }
.btn-menu-toggle:hover { background:var(--bg); color:var(--text); }
.sidebar-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:199; }

/* ====== Responsive ====== */
@media (max-width:1024px) { .stat-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:768px) {
  .btn-menu-toggle { display:inline-flex; }
  .sidebar { transform:translateX(-100%); transition:transform .25s ease; }
  .sidebar.open { transform:translateX(0); box-shadow:4px 0 24px rgba(0,0,0,.15); }
  .sidebar-overlay.show { display:block; }
  .main-content { margin-left:0; }
  .stat-grid { grid-template-columns:1fr; }
  .app-grid { grid-template-columns:1fr; }
  .form-row { grid-template-columns:1fr; }
  .container { padding:14px; }
  .login-card { padding:32px 24px; }
}