:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-card:#273549;--bg-card-hover:#334155;--text-main:#f8fafc;--text-muted:#94a3b8;--border-color:#334155;--accent-primary:#38bdf8;--accent-success:#10b981;--accent-warning:#f59e0b;--accent-danger:#ef4444;--accent-info:#6366f1;--shadow-sm:0 1px 3px 0 #0003;--shadow-md:0 4px 6px -1px #0000004d, 0 2px 4px -2px #0000004d;--shadow-lg:0 10px 15px -3px #0006, 0 4px 6px -4px #0006;--radius-sm:6px;--radius-md:10px;--radius-lg:16px}body.light-theme{--bg-primary:#f1f5f9;--bg-secondary:#fff;--bg-card:#f8fafc;--bg-card-hover:#edf2f7;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d;--shadow-lg:0 10px 15px -3px #00000014}*{box-sizing:border-box;letter-spacing:-.01em;margin:0;padding:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}body{background-color:var(--bg-primary);color:var(--text-main);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5}.loading-overlay{background:var(--bg-primary);z-index:999999;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.spinner{border:4px solid #38bdf826;border-top:4px solid var(--accent-primary);border-radius:50%;width:50px;height:50px;animation:.8s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.app-wrapper,.app-container{min-height:100vh;display:flex}.app-content-wrapper{flex-direction:column;flex:1;min-width:0;display:flex;overflow-x:hidden}.sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--border-color);z-index:99;flex-direction:column;flex-shrink:0;width:260px;transition:all .25s cubic-bezier(.4,0,.2,1);display:flex}.sidebar-header{border-bottom:1px solid var(--border-color);align-items:center;gap:12px;padding:20px 18px;display:flex}.logo-icon{color:#fff;border-radius:var(--radius-md);background:linear-gradient(135deg,#0284c7,#6366f1);justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;display:flex;box-shadow:0 4px 10px #0284c74d}.logo-text h2{font-size:15px;font-weight:700;line-height:1.2}.logo-text span{color:var(--text-muted);font-size:11px}.sidebar-menu{flex-direction:column;flex:1;gap:4px;padding:14px 10px;display:flex;overflow-y:auto}.nav-item{color:var(--text-muted);border-radius:var(--radius-md);cursor:pointer;background:0 0;border:none;align-items:center;gap:12px;padding:10px 14px;font-size:13.5px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover{background-color:var(--bg-card);color:var(--text-main)}.nav-item.active{color:var(--accent-primary);border-left:3px solid var(--accent-primary);background:#38bdf81f;font-weight:600}.nav-item i{text-align:center;width:18px;font-size:15px}.sidebar-footer{border-top:1px solid var(--border-color);padding:14px}.building-info{color:var(--text-muted);align-items:center;gap:6px;margin-bottom:10px;font-size:11.5px;display:flex}.btn-theme-toggle{background-color:var(--bg-card);border:1px solid var(--border-color);width:100%;color:var(--text-main);border-radius:var(--radius-sm);cursor:pointer;justify-content:center;align-items:center;gap:8px;padding:8px 12px;font-size:12.5px;font-weight:500;transition:background .2s;display:flex}.btn-theme-toggle:hover{background-color:var(--bg-card-hover)}.top-nav,.top-header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:50;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex;position:sticky;top:0}.mobile-menu-btn{border:1px solid var(--border-color);color:var(--text-main);border-radius:var(--radius-sm);cursor:pointer;background:0 0;padding:6px 10px;font-size:16px;display:none}.page-title h1{font-size:18px;font-weight:700}.page-title p{color:var(--text-muted);margin-top:2px;font-size:12px}.btn{border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:600;line-height:1.2;transition:all .15s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-sm{padding:5px 10px;font-size:12px}.btn-block{justify-content:center;width:100%}.btn-primary{color:#fff;background-color:#0284c7}.btn-primary:hover{background-color:#0369a1}.btn-success{color:#fff;background-color:#059669}.btn-success:hover{background-color:#047857}.btn-warning{color:#fff;background-color:#d97706}.btn-warning:hover{background-color:#b45309}.btn-danger{color:#fff;background-color:#dc2626}.btn-danger:hover{background-color:#b91c1c}.btn-secondary{background-color:var(--bg-card);color:var(--text-main);border-color:var(--border-color)}.btn-secondary:hover{background-color:var(--bg-card-hover)}.btn-info{color:#fff;background-color:#4f46e5}.btn-info:hover{background-color:#4338ca}.stats-grid,.kpi-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;display:grid}.stat-card,.kpi-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);align-items:center;gap:14px;padding:16px 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h2{align-items:center;gap:8px;font-size:15.5px;font-weight:700;display:flex}.table-responsive{-webkit-overflow-scrolling:touch;border-radius:var(--radius-sm);border:1px solid var(--border-color);overflow-x:auto}.data-table{border-collapse:collapse;width:100%;font-size:13px}.data-table th{background-color:var(--bg-card);color:var(--text-main);text-align:left;border-bottom:1px solid var(--border-color);white-space:nowrap;padding:10px 12px;font-weight:600}.data-table td{border-bottom:1px solid var(--border-color);vertical-align:middle;padding:9px 12px}.data-table tbody tr:hover{background-color:var(--bg-card-hover)}.form-group{margin-bottom:14px}.form-group label{color:var(--text-main);margin-bottom:6px;font-size:12.5px;font-weight:600;display:block}.form-control{background-color:var(--bg-primary);border:1px solid var(--border-color);width:100%;color:var(--text-main);border-radius:var(--radius-sm);outline:none;padding:8px 12px;font-size:13px;transition:border-color .2s,box-shadow .2s}.form-control:focus{border-color:var(--accent-primary);box-shadow:0 0 0 2px #38bdf833}.form-control-sm{padding:4px 8px;font-size:12px}.badge{border-radius:9999px;align-items:center;padding:3px 8px;font-size:11px;font-weight:600;line-height:1;display:inline-flex}.badge-success{color:#34d399;background:#10b98126;border:1px solid #10b9814d}.badge-danger{color:#f87171;background:#ef444426;border:1px solid #ef44444d}.badge-warning{color:#fbbf24;background:#f59e0b26;border:1px solid #f59e0b4d}.badge-info{color:#818cf8;background:#6366f126;border:1px solid #6366f14d}.modal{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000b3;justify-content:center;align-items:center;padding:16px;display:none;position:fixed;inset:0}.modal.active{display:flex}.modal-content{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:600px;box-shadow:var(--shadow-lg);animation:.2s ease-out modalFadeIn;overflow:hidden}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h2{font-size:16px;font-weight:700}.modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:24px}.modal-body{max-height:75vh;padding:20px;overflow-y:auto}.modal-footer{border-top:1px solid var(--border-color);justify-content:flex-end;gap:10px;padding:14px 20px;display:flex}.login-wrapper{background:radial-gradient(circle at 50% 30%,#1e293b 0%,#0f172a 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow-lg);padding:32px 28px}.login-header{text-align:center;margin-bottom:24px}.login-icon{color:#fff;background:linear-gradient(135deg,#0284c7,#6366f1);border-radius:14px;justify-content:center;align-items:center;width:56px;height:56px;margin:0 auto 12px;font-size:26px;display:flex;box-shadow:0 4px 15px #0284c766}.login-header h2{font-size:18px;font-weight:700}.login-header p{color:var(--text-muted);margin-top:4px;font-size:12px}.login-error-badge{color:#f87171;border-radius:var(--radius-sm);text-align:center;background:#ef444426;border:1px solid #ef44444d;margin-bottom:16px;padding:10px 14px;font-size:13px}.login-footer{text-align:center;color:var(--text-muted);margin-top:20px;font-size:11.5px}@media (width<=900px){.mobile-menu-btn{display:inline-flex}.sidebar{z-index:1000;width:260px;position:fixed;top:0;bottom:0;left:-280px;box-shadow:0 0 25px #0009}.sidebar.open{left:0}.sidebar-backdrop{z-index:999;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0009;position:fixed;inset:0}.dashboard-grid{grid-template-columns:1fr!important}}