*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f2f1ef;--sidebar-bg:#1a1a2e;--sidebar-text:#c8c8d8;--sidebar-active:#1565c0;--card-bg:#fff;--text-primary:#1a1a1a;--text-secondary:#888;--accent-blue:#1565c0;--accent-green:#4caf50;--accent-red:#c62828;--accent-orange:#e65100;--border:#ebebeb;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}body{font-family:var(--font);background:var(--bg);color:var(--text-primary);min-height:100dvh}.admin-shell{min-height:100dvh;display:flex}.sidebar{background:var(--sidebar-bg);z-index:10;flex-direction:column;flex-shrink:0;width:220px;min-height:100dvh;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{border-bottom:1px solid #ffffff14;align-items:center;gap:10px;padding:20px 20px 16px;display:flex}.sidebar-logo-text{color:#fff;font-size:16px;font-weight:700}.sidebar-logo-badge{background:var(--accent-blue);color:#fff;border-radius:4px;margin-left:auto;padding:2px 6px;font-size:10px;font-weight:600}.sidebar-nav{flex:1;padding:12px 0}.sidebar-item{color:var(--sidebar-text);cursor:pointer;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:11px 20px;font-size:14px;font-weight:500;text-decoration:none;transition:background .15s;display:flex}.sidebar-item:hover{color:#fff;background:#ffffff0f}.sidebar-item.active{color:#fff;border-right:3px solid var(--accent-blue);background:#1565c040}.sidebar-footer{border-top:1px solid #ffffff14;padding:16px 20px}.sidebar-logout{color:var(--sidebar-text);cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;padding:0;font-size:13px;display:flex}.sidebar-logout:hover{color:#fff}.main-content{flex:1;min-height:100dvh;margin-left:220px;padding:28px 28px 40px}.page-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.page-title{font-size:22px;font-weight:700}.page-subtitle{color:var(--text-secondary);margin-top:2px;font-size:13px}.card{background:var(--card-bg);border-radius:12px;margin-bottom:16px;padding:20px}.stat-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin-bottom:24px;display:grid}.stat-card{background:var(--card-bg);border-radius:12px;padding:18px 20px}.stat-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;font-size:12px;font-weight:500}.stat-value{margin-top:4px;font-size:28px;font-weight:700}.stat-value.blue{color:var(--accent-blue)}.stat-value.green{color:var(--accent-green)}.stat-value.red{color:var(--accent-red)}.stat-value.orange{color:var(--accent-orange)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);border-bottom:1px solid var(--border);padding:10px 14px;font-size:11px}td{border-bottom:1px solid var(--border);vertical-align:middle;padding:13px 14px}tr:last-child td{border-bottom:none}tr:hover td{background:#fafafa}.badge{border-radius:20px;align-items:center;gap:4px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge.active{color:#2e7d32;background:#e8f5e9}.badge.inactive{color:#c62828;background:#fce4ec}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;padding:9px 16px;font-size:14px;font-weight:600;transition:opacity .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-blue);color:#fff}.btn-primary:hover:not(:disabled){opacity:.88}.btn-outline{color:var(--text-primary);border:1.5px solid var(--border);background:0 0}.btn-outline:hover{background:var(--bg)}.btn-danger{color:var(--accent-red);border:1.5px solid var(--accent-red);background:0 0}.btn-danger:hover{background:#fce4ec}.btn-sm{padding:5px 11px;font-size:12px}.btn-icon{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;border-radius:6px;align-items:center;padding:5px;display:inline-flex}.btn-icon:hover{background:var(--bg);color:var(--text-primary)}.form-group{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.form-label{font-size:13px;font-weight:600}.form-input{border:1.5px solid var(--border);background:#fff;border-radius:8px;outline:none;width:100%;padding:10px 12px;font-size:14px;transition:border-color .15s}.form-input:focus{border-color:var(--accent-blue)}.form-hint{color:var(--text-secondary);font-size:12px}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.form-check{cursor:pointer;align-items:center;gap:8px;font-size:14px;display:flex}.modal-overlay{z-index:100;background:#00000073;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:14px;width:100%;max-width:540px;max-height:90dvh;padding:28px;overflow-y:auto}.modal-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.modal-title{font-size:18px;font-weight:700}.modal-actions{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.alert{border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:14px}.alert.error{color:var(--accent-red);background:#fce4ec}.alert.success{color:#2e7d32;background:#e8f5e9}.alert.info{color:#1565c0;background:#e3f2fd}.login-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100dvh;display:flex}.login-box{background:#fff;border-radius:16px;width:100%;max-width:380px;padding:36px 32px}.login-logo{text-align:center;margin-bottom:28px}.login-logo h1{margin-top:8px;font-size:20px;font-weight:700}.login-logo small{color:var(--text-secondary);font-size:12px}.chart-container{width:100%}.chart-header-meta{text-align:right;color:var(--text-secondary);margin-bottom:4px;font-size:11px}.time-scale-bar{border-top:1px solid var(--border);gap:4px;padding:12px 16px;display:flex}.time-scale-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;flex:1;padding:6px;font-size:12px;font-weight:600}.time-scale-btn.active{background:var(--accent-blue);color:#fff}.filter-bar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;display:flex}.search-input{border:1.5px solid var(--border);border-radius:8px;outline:none;flex:1;min-width:180px;padding:9px 12px;font-size:14px}.search-input:focus{border-color:var(--accent-blue)}.device-meta{flex-wrap:wrap;gap:24px;margin-bottom:20px;display:flex}.device-meta-item{flex-direction:column;gap:2px;display:flex}.device-meta-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;font-size:11px}.device-meta-value{font-size:15px;font-weight:600}.chart-tooltip{background:#1a1a1aeb;border-radius:8px;padding:8px 12px}.chart-tooltip-label{color:#ccc;margin-bottom:2px;font-size:11px}.chart-tooltip-value{color:#fff;font-size:14px;font-weight:700}.empty-state{text-align:center;color:var(--text-secondary);padding:40px;font-size:14px}.skeleton{background:#ececec;border-radius:6px;animation:1.2s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.skeleton-row{height:44px;margin-bottom:8px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}