:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4a9af5;
    --bg: #f5f7fa;
    --card-bg: #fff;
    --text: #1a1a2e;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --accent: #8b5cf6;
    --sidebar-bg: #1a1a2e;
    --sidebar-text: rgba(255,255,255,0.85);
    --sidebar-text-muted: rgba(255,255,255,0.6);
    --sidebar-hover: rgba(255,255,255,0.08);
    --sidebar-active: rgba(255,255,255,0.12);
    --sidebar-header-text: #fff;
    --sidebar-width: 280px;
    --topbar-height: 60px;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; background:var(--bg); color:var(--text); line-height:1.5; overflow-x:hidden; }
a { color:var(--primary); text-decoration:none; }
a:hover { text-decoration:underline; }

/* Sidebar */
.overlay-sidebar { position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,0.5); z-index:999; display:none; }
.overlay-sidebar.active { display:block; }
.sidebar { position:fixed; top:0; left:0; width:var(--sidebar-width); height:100vh; background:var(--sidebar-bg); color:var(--sidebar-text); z-index:1000; display:flex; flex-direction:column; transition:transform 0.3s ease; overflow-y:auto; overflow-x:hidden; }
.sidebar-header { padding:20px; display:flex; align-items:center; gap:12px; border-bottom:1px solid rgba(255,255,255,0.1); flex-shrink:0; }
.tenant-icon { width:42px; height:42px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:16px; color:#fff; flex-shrink:0; }
.tenant-info h3 { font-size:14px; font-weight:600; color:var(--sidebar-header-text); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.tenant-info p { font-size:11px; color:var(--sidebar-text-muted); margin-top:2px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sidebar-nav { flex:1; padding:8px 0; overflow-y:auto; }
.nav-item { padding:10px 20px; cursor:pointer; display:flex; align-items:center; gap:10px; font-size:13.5px; color:var(--sidebar-text); transition:all 0.15s; white-space:nowrap; }
.nav-item:hover { background:var(--sidebar-hover); }
.nav-item.active { background:var(--sidebar-active); font-weight:600; color:var(--sidebar-header-text); }
.nav-icon { font-size:14px; width:20px; text-align:center; flex-shrink:0; }
.nav-collapsible-header { padding:10px 20px; cursor:pointer; display:flex; align-items:center; justify-content:space-between; font-size:13.5px; color:var(--sidebar-text); transition:all 0.15s; user-select:none; }
.nav-collapsible-header:hover { background:var(--sidebar-hover); }
.nav-collapsible-header .arrow { font-size:10px; transition:transform 0.2s; }
.nav-collapsible-header.open .arrow { transform:rotate(180deg); }
.nav-collapsible-menu { max-height:0; overflow:hidden; transition:max-height 0.3s ease; }
.nav-collapsible-menu.open { max-height:500px; }
.nav-sub-item { padding:9px 20px 9px 50px; cursor:pointer; display:flex; align-items:center; gap:10px; font-size:13px; color:var(--sidebar-text-muted); transition:all 0.15s; white-space:nowrap; }
.nav-sub-item:hover { background:var(--sidebar-hover); color:var(--sidebar-text); }
.nav-sub-item.active { background:var(--sidebar-active); font-weight:600; color:var(--sidebar-header-text); }
.nav-divider { height:1px; background:rgba(255,255,255,0.1); margin:8px 20px; }
.sidebar-footer { padding:16px 20px; border-top:1px solid rgba(255,255,255,0.1); flex-shrink:0; }
.admin-info { display:flex; align-items:center; gap:10px; }
.admin-avatar { width:36px; height:36px; border-radius:50%; background:var(--primary); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:14px; color:#fff; flex-shrink:0; }
.admin-details p { font-size:12px; color:var(--sidebar-text); font-weight:500; }
.admin-details span { font-size:11px; color:var(--sidebar-text-muted); }

/* Main Content */
.main-content { margin-left:var(--sidebar-width); min-height:100vh; transition:margin 0.3s ease; }
.topbar { height:var(--topbar-height); background:var(--card-bg); border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; padding:0 24px; position:sticky; top:0; z-index:100; box-shadow:var(--shadow); }
.topbar-left { display:flex; align-items:center; gap:12px; }
.topbar-left h2 { font-size:18px; font-weight:600; }
.topbar-right { display:flex; align-items:center; gap:10px; }
.theme-dot { width:12px; height:12px; border-radius:50%; }
.tenant-badge { font-size:12px; padding:4px 10px; background:var(--bg); border-radius:20px; font-weight:500; color:var(--text-muted); }
.menu-toggle { display:none; background:none; border:none; font-size:22px; cursor:pointer; color:var(--text); padding:4px 8px; }
.page-content { padding:24px; }

/* Cards */
.card { background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow); margin-bottom:20px; overflow:hidden; }
.card-header { padding:16px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.card-header h3 { font-size:15px; font-weight:600; }
.card-body { padding:20px; }
.card-body.no-pad { padding:0; }

/* Stats Grid */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr)); gap:16px; margin-bottom:24px; }
.stat-card { background:var(--card-bg); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); cursor:pointer; transition:transform 0.2s, box-shadow 0.2s; border-left:4px solid transparent; }
.stat-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-lg); }
.stat-card.primary { border-left-color:var(--primary); }
.stat-card.success { border-left-color:var(--success); }
.stat-card.warning { border-left-color:var(--warning); }
.stat-card.danger { border-left-color:var(--danger); }
.stat-card.info { border-left-color:var(--info); }
.stat-card.accent { border-left-color:var(--accent); }
.stat-icon { font-size:24px; margin-bottom:8px; }
.stat-value { font-size:22px; font-weight:700; color:var(--text); }
.stat-label { font-size:12px; color:var(--text-muted); margin-top:4px; }

/* Tables */
.table-wrap { overflow-x:auto; border-radius:12px; -webkit-overflow-scrolling:touch; }
table { width:100%; border-collapse:collapse; table-layout:auto; background:#fff; }
thead tr { background:linear-gradient(135deg, #1E3A5F 0%, #7C3AED 100%); }
th { padding:14px 16px; text-align:left; font-size:12px; font-weight:700; color:#fff; text-transform:uppercase; letter-spacing:0.5px; white-space:nowrap; min-width:80px; }
td { padding:12px 16px; border-bottom:1px solid #E2E8F0; font-size:13.5px; word-wrap:break-word; overflow-wrap:break-word; max-width:250px; vertical-align:middle; }
tbody tr:nth-child(even) { background:#F8FAFC; }
tbody tr:nth-child(odd) { background:#FFFFFF; }
tbody tr:hover { background:#EFF6FF; transition:background 0.2s; }
tbody tr { border-left:3px solid transparent; transition:all 0.2s; }
tbody tr:hover { border-left:3px solid #3B82F6; }
@media(max-width:768px){ th{padding:10px 8px;font-size:11px;min-width:60px} td{padding:8px;font-size:12px;max-width:160px} }
.text-center { text-align:center; }
.text-right { text-align:right; }
.text-muted { color:var(--text-muted); }
.text-sm { font-size:12px; }
.fw-600 { font-weight:600; }

/* Badges */
.badge { display:inline-block; padding:3px 10px; border-radius:20px; font-size:11px; font-weight:600; white-space:nowrap; }
.badge-success { background:rgba(16,185,129,0.12); color:#059669; }
.badge-danger { background:rgba(239,68,68,0.12); color:#dc2626; }
.badge-warning { background:rgba(245,158,11,0.12); color:#d97706; }
.badge-info { background:rgba(59,130,246,0.12); color:#2563eb; }
.badge-accent { background:rgba(139,92,246,0.12); color:#7c3aed; }
.badge-primary { background:rgba(26,115,232,0.12); color:#1a73e8; }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:6px; padding:8px 16px; border:none; border-radius:8px; font-size:13px; font-weight:500; cursor:pointer; transition:all 0.15s; white-space:nowrap; }
.btn:hover { opacity:0.9; transform:translateY(-1px); }
.btn-primary { background:var(--primary); color:#fff; }
.btn-success { background:var(--success); color:#fff; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-warning { background:var(--warning); color:#fff; }
.btn-info { background:var(--info); color:#fff; }
.btn-secondary { background:var(--bg); color:var(--text); border:1px solid var(--border); }
.btn-sm { padding:5px 12px; font-size:12px; }
.btn-lg { padding:12px 24px; font-size:15px; }
.btn-block { width:100%; }
.w-full { width:100%; }

/* Forms */
.form-group { margin-bottom:16px; }
.form-group label { display:block; font-size:13px; font-weight:500; color:var(--text-muted); margin-bottom:6px; }
.form-control { width:100%; padding:10px 14px; border:1px solid var(--border); border-radius:8px; font-size:14px; transition:border-color 0.15s; background:var(--card-bg); color:var(--text); }
.form-control:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(26,115,232,0.12); }
textarea.form-control { resize:vertical; min-height:80px; }
select.form-control { cursor:pointer; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

/* Toggle Switch */
.toggle-row { display:flex; align-items:center; justify-content:space-between; padding:14px 0; border-bottom:1px solid var(--border); }
.toggle-row:last-child { border-bottom:none; }
.toggle-label { font-size:14px; font-weight:500; }
.toggle-desc { font-size:12px; color:var(--text-muted); margin-top:2px; }
.switch { position:relative; display:inline-block; width:44px; height:24px; flex-shrink:0; }
.switch input { opacity:0; width:0; height:0; }
.slider { position:absolute; cursor:pointer; top:0; left:0; right:0; bottom:0; background:#ccc; transition:0.3s; border-radius:24px; }
.slider:before { position:absolute; content:""; height:18px; width:18px; left:3px; bottom:3px; background:#fff; transition:0.3s; border-radius:50%; }
input:checked + .slider { background:var(--primary); }
input:checked + .slider:before { transform:translateX(20px); }

/* Settings Sections */
.settings-section { background:var(--card-bg); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); }
.settings-section h4 { font-size:15px; font-weight:600; margin-bottom:16px; padding-bottom:8px; border-bottom:2px solid var(--primary); display:inline-block; }

/* Schedule Grid */
.schedule-grid { display:flex; gap:6px; flex-wrap:wrap; }
.schedule-day { width:40px; height:40px; display:flex; align-items:center; justify-content:center; border-radius:8px; border:1px solid var(--border); cursor:pointer; font-size:12px; font-weight:500; transition:all 0.15s; }
.schedule-day:hover, .schedule-day.active { background:var(--primary); color:#fff; border-color:var(--primary); }

/* Pagination */
.pagination { display:flex; gap:6px; justify-content:center; margin-top:20px; flex-wrap:wrap; }
.page-btn { padding:6px 14px; border-radius:6px; border:1px solid var(--border); font-size:13px; cursor:pointer; background:var(--card-bg); color:var(--text); transition:all 0.15s; }
.page-btn:hover { border-color:var(--primary); color:var(--primary); text-decoration:none; }
.page-btn.active { background:var(--primary); color:#fff; border-color:var(--primary); }

/* Auth */
.auth-wrapper { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px; background:var(--bg); }
.auth-card { width:100%; max-width:400px; background:var(--card-bg); border-radius:var(--radius); padding:40px 32px; box-shadow:var(--shadow-lg); }
.auth-logo { text-align:center; margin-bottom:28px; }
.logo-icon { width:60px; height:60px; border-radius:14px; display:inline-flex; align-items:center; justify-content:center; font-size:28px; color:#fff; margin-bottom:12px; }
.auth-logo h1 { font-size:18px; font-weight:600; }
.auth-logo p { font-size:13px; color:var(--text-muted); margin-top:4px; }
.auth-error { display:none; padding:10px 14px; background:rgba(239,68,68,0.1); color:#dc2626; border-radius:8px; font-size:13px; margin-bottom:16px; }
.auth-error.show { display:block; }

/* Flex Utils */
.flex-between { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; }
.flex-center { display:flex; align-items:center; }
.flex-wrap { display:flex; flex-wrap:wrap; }
.gap-8 { gap:8px; }
.mb-24 { margin-bottom:24px; }
.mt-16 { margin-top:16px; }

/* Tabs */
.tabs { display:flex; gap:0; border-bottom:2px solid var(--border); margin-bottom:20px; overflow-x:auto; }
.tab { padding:10px 20px; cursor:pointer; font-size:13px; font-weight:500; color:var(--text-muted); border-bottom:2px solid transparent; margin-bottom:-2px; transition:all 0.15s; white-space:nowrap; }
.tab:hover { color:var(--text); }
.tab.active { color:var(--primary); border-bottom-color:var(--primary); font-weight:600; }

/* Search & Filters */
.filter-bar { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:20px; }
.filter-bar .form-control { max-width:180px; }
.search-bar { display:flex; align-items:center; gap:8px; }

/* Expandable Section */
.expand-header { cursor:pointer; padding:14px 16px; background:var(--bg); border-radius:8px; display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; transition:all 0.15s; }
.expand-header:hover { background:var(--border); }
.expand-header h4 { font-size:14px; font-weight:600; display:flex; align-items:center; gap:8px; }
.expand-header .arrow { transition:transform 0.2s; }
.expand-header.open .arrow { transform:rotate(180deg); }
.expand-content { max-height:0; overflow:hidden; transition:max-height 0.3s ease; }
.expand-content.open { max-height:2000px; }

/* Toast */
.toast { position:fixed; top:20px; right:20px; z-index:10000; padding:12px 20px; border-radius:8px; color:#fff; font-size:14px; box-shadow:var(--shadow-lg); animation:slideIn 0.3s ease; }
.toast-success { background:#059669; }
.toast-danger { background:#dc2626; }
@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }

/* Empty State */
.empty-state { text-align:center; padding:60px 20px; color:var(--text-muted); }
.empty-state .empty-icon { font-size:48px; margin-bottom:12px; }
.empty-state p { font-size:14px; }

/* Responsive */
@media(max-width:768px) {
    .sidebar { transform:translateX(-100%); }
    .sidebar.open { transform:translateX(0); }
    .main-content { margin-left:0; }
    .menu-toggle { display:block; }
    .page-content { padding:16px; }
    .stats-grid { grid-template-columns:repeat(2, 1fr); gap:10px; }
    .stat-card { padding:14px; }
    .stat-value { font-size:18px; }
    .form-row { grid-template-columns:1fr; }
    .topbar { padding:0 16px; }
    th, td { padding:8px 10px; font-size:12px; }
    .filter-bar .form-control { max-width:100%; }
    .filter-bar { flex-direction:column; align-items:stretch; }
}
@media(max-width:480px) {
    .stats-grid { grid-template-columns:1fr 1fr; }
    .auth-card { padding:28px 20px; }
}