* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif; background:#0b0b1a; color:#e0e0ff; min-height:100vh; }
body.login-page { display:flex; align-items:center; justify-content:center; }
.login-card { background:#151530; border-radius:16px; padding:2.5rem; width:400px; max-width:90vw; border:1px solid #2d2d5e; box-shadow:0 0 30px rgba(100,60,255,0.15); }
.login-header { font-size:1.5rem; font-weight:700; margin-bottom:2rem; text-align:center; color:#a78bfa; text-shadow:0 0 20px rgba(167,139,250,0.3); }
.login-error { background:rgba(239,68,68,0.2); color:#ef4444; padding:0.75rem; border-radius:8px; margin-bottom:1rem; text-align:center; }
.hidden { display:none !important; }
.navbar { background:#151530; padding:0.75rem 1.5rem; display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid #2d2d5e; position:sticky; top:0; z-index:100; flex-wrap:wrap; gap:0.5rem; box-shadow:0 2px 20px rgba(100,60,255,0.1); }
.nav-brand { font-size:1.2rem; font-weight:700; color:#a78bfa; white-space:nowrap; text-shadow:0 0 10px rgba(167,139,250,0.2); }
.nav-links { display:flex; gap:0.25rem; flex-wrap:wrap; }
.nav-links a { color:#8888bb; text-decoration:none; font-size:0.8rem; padding:0.4rem 0.6rem; border-radius:6px; transition:all 0.2s; white-space:nowrap; }
.nav-links a:hover, .nav-links a.active { color:#a78bfa; background:rgba(167,139,250,0.1); }
.nav-right { display:flex; align-items:center; gap:1rem; }
.nav-user { color:#8888bb; font-size:0.85rem; }
.container { max-width:1600px; margin:0 auto; padding:1.5rem; }
.stats-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr)); gap:1rem; margin-bottom:1.5rem; }
.stat-card { background:#151530; border-radius:12px; padding:1.25rem; border:1px solid #2d2d5e; transition:all 0.3s; }
.stat-card:hover { border-color:#a78bfa; box-shadow:0 0 20px rgba(167,139,250,0.1); }
.stat-value { font-size:2rem; font-weight:700; color:#a78bfa; }
.stat-label { color:#8888bb; margin-top:0.25rem; font-size:0.8rem; }
.section { background:#151530; border-radius:12px; padding:1.5rem; margin-bottom:1.5rem; border:1px solid #2d2d5e; }
.section h2 { margin-bottom:1rem; font-size:1.15rem; color:#e0e0ff; display:flex; align-items:center; gap:0.5rem; }
.data-table { width:100%; border-collapse:collapse; font-size:0.85rem; }
.data-table th { text-align:left; padding:0.6rem 0.75rem; color:#8888bb; font-size:0.75rem; text-transform:uppercase; letter-spacing:0.05em; border-bottom:1px solid #2d2d5e; }
.data-table td { padding:0.6rem 0.75rem; border-bottom:1px solid #1a1a3e; }
.data-table tr:hover td { background:rgba(167,139,250,0.05); }
.data-table .truncate { max-width:250px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.badge { display:inline-block; padding:0.2rem 0.6rem; border-radius:999px; font-size:0.7rem; font-weight:600; }
.badge-success { background:rgba(34,197,94,0.2); color:#22c55e; }
.badge-warning { background:rgba(234,179,8,0.2); color:#eab308; }
.badge-danger { background:rgba(239,68,68,0.2); color:#ef4444; }
.badge-info { background:rgba(167,139,250,0.2); color:#a78bfa; }
.btn { padding:0.5rem 1rem; border:none; border-radius:8px; font-size:0.85rem; cursor:pointer; transition:all 0.2s; text-decoration:none; display:inline-flex; align-items:center; gap:0.4rem; }
.btn-primary { background:#7c3aed; color:white; }
.btn-primary:hover { background:#6d28d9; box-shadow:0 0 15px rgba(124,58,237,0.3); }
.btn-danger { background:#ef4444; color:white; }
.btn-danger:hover { background:#dc2626; }
.btn-success { background:#22c55e; color:white; }
.btn-success:hover { background:#16a34a; }
.btn-sm { padding:0.3rem 0.6rem; font-size:0.75rem; }
.btn-full { width:100%; justify-content:center; padding:0.75rem; }
.form-group { margin-bottom:1rem; }
.form-group label { display:block; margin-bottom:0.4rem; color:#8888bb; font-size:0.85rem; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:0.65rem; background:#0b0b1a; border:1px solid #2d2d5e; border-radius:8px; color:#e0e0ff; font-size:0.9rem; }
.form-group input:focus { outline:none; border-color:#a78bfa; box-shadow:0 0 10px rgba(167,139,250,0.2); }
.card-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(320px, 1fr)); gap:1rem; margin-bottom:1.5rem; }
.device-card { background:#151530; border-radius:12px; padding:1.25rem; border:1px solid #2d2d5e; cursor:pointer; transition:all 0.2s; }
.device-card:hover { border-color:#a78bfa; box-shadow:0 0 20px rgba(167,139,250,0.1); }
.device-card h3 { color:#a78bfa; margin-bottom:0.5rem; font-size:1rem; }
.device-card .info-row { display:flex; justify-content:space-between; padding:0.2rem 0; font-size:0.8rem; }
.device-card .info-row .label { color:#8888bb; }
.device-card .info-row .value { color:#e0e0ff; }
.empty-state { text-align:center; padding:3rem; color:#8888bb; }
.filter-bar { display:flex; gap:0.75rem; margin-bottom:1rem; flex-wrap:wrap; align-items:center; }
.filter-bar select, .filter-bar input { padding:0.5rem; background:#0b0b1a; border:1px solid #2d2d5e; border-radius:8px; color:#e0e0ff; min-width:180px; font-size:0.85rem; }
.filter-bar input { min-width:200px; flex:1; }
.modal-overlay { position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.7); display:flex; align-items:center; justify-content:center; z-index:200; }
.modal { background:#151530; border-radius:12px; padding:2rem; min-width:350px; max-width:90vw; max-height:85vh; overflow-y:auto; border:1px solid #2d2d5e; box-shadow:0 0 40px rgba(100,60,255,0.2); }
.modal h3 { margin-bottom:1.25rem; color:#a78bfa; }
.modal-actions { display:flex; gap:0.75rem; justify-content:flex-end; margin-top:1.25rem; }
.tabs { display:flex; gap:0.25rem; margin-bottom:1rem; border-bottom:1px solid #2d2d5e; padding-bottom:0.5rem; flex-wrap:wrap; }
.tab { padding:0.5rem 1rem; border-radius:8px 8px 0 0; cursor:pointer; color:#8888bb; font-size:0.85rem; transition:all 0.2s; }
.tab:hover { color:#e0e0ff; background:rgba(167,139,250,0.05); }
.tab.active { color:#a78bfa; background:rgba(167,139,250,0.1); border-bottom:2px solid #a78bfa; }
#map { height:450px; border-radius:12px; margin-bottom:1rem; border:1px solid #2d2d5e; }
.chart-container { height:250px; margin-bottom:1rem; position:relative; }
.analytics-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(400px, 1fr)); gap:1rem; }
.pagination { display:flex; gap:0.5rem; align-items:center; justify-content:center; margin-top:1rem; }
.pagination button { padding:0.4rem 0.8rem; background:#151530; border:1px solid #2d2d5e; border-radius:6px; color:#8888bb; cursor:pointer; }
.pagination button:hover { border-color:#a78bfa; color:#a78bfa; }
.pagination .page-info { color:#8888bb; font-size:0.85rem; }
.export-bar { display:flex; gap:0.5rem; margin-bottom:1rem; flex-wrap:wrap; }
.online-indicator { width:10px; height:10px; border-radius:50%; display:inline-block; margin-right:6px; }
.online { background:#22c55e; box-shadow:0 0 8px rgba(34,197,94,0.5); }
.offline { background:#ef4444; box-shadow:0 0 8px rgba(239,68,68,0.5); }
.pulse-online { animation:pulse-online 2s infinite; }
.pulse-offline { animation:pulse-offline 2s infinite; }
@keyframes pulse-online { 0%,100%{box-shadow:0 0 8px rgba(34,197,94,0.5)} 50%{box-shadow:0 0 16px rgba(34,197,94,0.8)} }
@keyframes pulse-offline { 0%,100%{box-shadow:0 0 8px rgba(239,68,68,0.5)} 50%{box-shadow:0 0 16px rgba(239,68,68,0.8)} }
.toast-container { position:fixed; top:1rem; right:1rem; z-index:9999; display:flex; flex-direction:column; gap:0.5rem; }
.toast { padding:0.75rem 1.25rem; border-radius:8px; color:white; font-size:0.85rem; animation: slideIn 0.3s ease; box-shadow:0 4px 12px rgba(0,0,0,0.3); }
.toast-success { background:#7c3aed; }
.toast-error { background:#ef4444; }
@keyframes slideIn { from{transform:translateX(100%);opacity:0} to{transform:translateX(0);opacity:1} }
.device-card-header { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:0.5rem; }
.device-card-header h3 { margin-bottom:0 !important; }
.btn:active { transform:scale(0.96); }
select { cursor:pointer; }
select option { background:#151530; color:#e0e0ff; }
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background:#0b0b1a; }
::-webkit-scrollbar-thumb { background:#2d2d5e; border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:#a78bfa; }
/* Mobile hamburger */
.mobile-menu-btn { display:none; background:none; border:none; color:#94a3b8; font-size:1.5rem; cursor:pointer; padding:0.25rem; line-height:1; }
.nav-top-row { display:flex; align-items:center; gap:0.5rem; width:100%; }
@media (max-width:768px) {
  .mobile-menu-btn { display:block; }
  .navbar { padding:0.5rem 0.75rem; gap:0.25rem; flex-direction:column; }
  .nav-links { display:none; width:100%; flex-direction:column; gap:0; }
  .nav-links.mobile-open { display:flex; }
  .nav-links a { padding:0.6rem 0.75rem; border-radius:0; border-bottom:1px solid #1e293b; font-size:0.85rem; }
  .nav-right { width:auto; gap:0.5rem; }
  .container { padding:0.5rem; }
  .stats-grid { grid-template-columns:1fr 1fr; gap:0.5rem; }
  .stat-card { padding:0.75rem; }
  .stat-value { font-size:1.4rem; }
  .stat-label { font-size:0.7rem; }
  .section { padding:0.75rem; border-radius:8px; margin-bottom:0.75rem; }
  .section h2 { font-size:1rem; margin-bottom:0.75rem; }
  .data-table { font-size:0.75rem; }
  .data-table th, .data-table td { padding:0.4rem 0.5rem; }
  .data-table .truncate { max-width:120px; }
  .card-grid { grid-template-columns:1fr; gap:0.5rem; }
  .device-card { padding:0.75rem; }
  .device-card .info-row { font-size:0.75rem; }
  .filter-bar { flex-direction:column; gap:0.5rem; }
  .filter-bar select, .filter-bar input { min-width:100%; width:100%; }
  .tabs { gap:0; overflow-x:auto; flex-wrap:nowrap; -webkit-overflow-scrolling:touch; }
  .tab { padding:0.4rem 0.75rem; font-size:0.75rem; white-space:nowrap; }
  .modal { padding:1.25rem; min-width:auto; width:95vw; max-height:80vh; }
  .modal-actions { flex-direction:column; gap:0.5rem; }
  .modal-actions .btn { width:100%; justify-content:center; }
  #map { height:250px; }
  .chart-container { height:180px; }
  .analytics-grid { grid-template-columns:1fr; gap:0.75rem; }
  .analytics-grid .section { padding:0.75rem; }
  .pagination { gap:0.25rem; }
  .pagination button { padding:0.3rem 0.6rem; font-size:0.75rem; }
  .login-card { padding:1.5rem; }
  .login-header { font-size:1.25rem; }
  .btn { font-size:0.8rem; padding:0.4rem 0.75rem; }
  .btn-sm { font-size:0.7rem; padding:0.25rem 0.5rem; }
  .form-group input, .form-group select { padding:0.5rem; font-size:0.8rem; }
  .nav-brand { font-size:1rem; }
  .nav-user { font-size:0.75rem; max-width:100px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  [style*="overflow-x:auto"] { max-width:100vw; }
  .export-bar { flex-wrap:wrap; }
  .export-bar .btn { flex:1; min-width:0; }
}
@media (max-width:480px) {
  .stats-grid { grid-template-columns:1fr 1fr; gap:0.4rem; }
  .stat-value { font-size:1.2rem; }
  .container { padding:0.4rem; }
  .section { padding:0.6rem; }
  .data-table th, .data-table td { padding:0.3rem 0.4rem; font-size:0.7rem; }
  .data-table .truncate { max-width:80px; }
  .btn { font-size:0.75rem; padding:0.35rem 0.6rem; }
}