:root{--bg: #f0f2f5;--bg-card: #ffffff;--bg-sidebar: #1e293b;--bg-sidebar-hover: #334155;--bg-sidebar-active: #3b82f6;--text: #1e293b;--text-secondary: #64748b;--text-sidebar: #cbd5e1;--text-sidebar-active: #ffffff;--border: #e2e8f0;--primary: #3b82f6;--primary-hover: #2563eb;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.1);--sidebar-w: 220px}*{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}a{color:var(--primary);text-decoration:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);color:var(--text-sidebar);position:fixed;top:0;left:0;bottom:0;display:flex;flex-direction:column;z-index:100}.sidebar-logo{padding:20px 16px;font-size:18px;font-weight:700;color:#fff;border-bottom:1px solid rgba(255,255,255,.1);letter-spacing:1px}.sidebar-nav{flex:1;padding:8px 0;overflow-y:auto}.sidebar-link{display:flex;align-items:center;gap:12px;padding:10px 16px;color:var(--text-sidebar);font-size:14px;transition:background .15s,color .15s;cursor:pointer}.sidebar-link:hover{background:var(--bg-sidebar-hover);color:#fff}.sidebar-link.active{background:var(--bg-sidebar-active);color:var(--text-sidebar-active)}.sidebar-icon{width:20px;text-align:center;font-size:16px}.main-content{margin-left:var(--sidebar-w);flex:1;padding:24px;min-height:100vh}.page-header{margin-bottom:24px;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}.page-header h1{font-size:24px;font-weight:600}.page-header p{color:var(--text-secondary);font-size:14px;margin-top:4px}.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.stat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;display:flex;flex-direction:column;gap:8px}.stat-card .stat-icon{font-size:28px}.stat-card .stat-value{font-size:32px;font-weight:700;line-height:1}.stat-card .stat-label{font-size:13px;color:var(--text-secondary)}.data-table{width:100%;border-collapse:collapse;font-size:14px}.data-table th{text-align:left;padding:10px 12px;background:var(--bg);font-weight:600;font-size:12px;text-transform:uppercase;color:var(--text-secondary);border-bottom:2px solid var(--border);white-space:nowrap}.data-table td{padding:10px 12px;border-bottom:1px solid var(--border)}.data-table tbody tr:hover{background:#f8fafc}.data-table tbody tr:nth-child(2n){background:#fafbfc}.data-table tbody tr:nth-child(2n):hover{background:#f1f5f9}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}.badge-online{background:#dcfce7;color:#166534}.badge-offline{background:#f1f5f9;color:#64748b}.badge-danger{background:#fef2f2;color:#991b1b}.badge-warning{background:#fffbeb;color:#92400e}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:4px 10px;font-size:12px}.input{padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:border-color .15s;width:100%}.input:focus{border-color:var(--primary)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:500;margin-bottom:4px;color:var(--text-secondary)}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.toolbar .input{max-width:400px}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-sidebar)}.login-card{background:var(--bg-card);border-radius:12px;padding:40px;width:100%;max-width:380px;box-shadow:0 4px 24px #0003}.login-card h1{font-size:22px;margin-bottom:4px}.login-card p{color:var(--text-secondary);font-size:14px;margin-bottom:24px}.login-card .btn{width:100%;justify-content:center;padding:10px;font-size:15px}.login-error{background:#fef2f2;color:#991b1b;padding:8px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:16px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200}.modal{background:var(--bg-card);border-radius:12px;padding:24px;width:100%;max-width:480px;box-shadow:0 8px 32px #0003}.modal h2{font-size:18px;margin-bottom:16px}.modal-content{background:var(--bg-card);border-radius:12px;padding:24px;width:100%;max-width:480px;box-shadow:0 8px 32px #0003}.modal-content h2{font-size:18px;margin-bottom:16px}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}.map-container{height:calc(100vh - 120px);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.map-controls{display:flex;gap:12px;align-items:center;margin-bottom:12px;flex-wrap:wrap}.audio-player{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg);border-radius:var(--radius)}.audio-player audio{flex:1;height:36px}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.metric-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.metric-card h3{font-size:13px;color:var(--text-secondary);text-transform:uppercase;margin-bottom:8px}.metric-card .metric-value{font-size:28px;font-weight:700}.chart-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}.chart-card h3{font-size:15px;margin-bottom:16px}@media (max-width: 768px){.sidebar{width:60px}.sidebar-logo{font-size:0;padding:20px 8px}.sidebar-link span:not(.sidebar-icon){display:none}.sidebar-link{justify-content:center;padding:12px 8px}.main-content{margin-left:60px;padding:16px}.stat-cards{grid-template-columns:repeat(2,1fr)}}