:root{text-rendering:optimizeLegibility;--header-height: 40px;--sidebar-width: 350px}*{box-sizing:border-box}body{margin:0;overflow:hidden;background-color:#f8f9fa;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}#root{display:flex;flex-direction:column;height:100vh;overflow:hidden}.header{height:var(--header-height);background-color:#2c3e50;color:#fff;padding:0 15px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 2px 4px #0000001a;z-index:100;flex-shrink:0}.chart-container{flex:1;display:flex;overflow:hidden}.chart-area{flex:1;background-color:#fff;overflow:hidden}.settings-sidebar{width:var(--sidebar-width);background-color:#f8f9fa;border-left:1px solid #dee2e6;padding:15px;overflow-y:auto;flex-shrink:0}.sidebar-title{font-size:1.2rem;font-weight:600;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid #dee2e6;color:#2c3e50}.btn-primary{background-color:#3498db;border-color:#3498db}.btn-primary:hover{background-color:#2980b9;border-color:#2980b9}.timeframe-btn{background-color:#e9ecef;border:1px solid #ced4da;color:#495057;padding:5px 10px;border-radius:4px;margin:0 3px;cursor:pointer;transition:all .2s}.timeframe-btn.active{background-color:#3498db;color:#fff;border-color:#3498db}.timeframe-btn:hover{background-color:#dee2e6}.chart-title{font-size:1.1rem;font-weight:600;color:#fff}.chart-controls{display:flex;gap:10px}.control-btn{background-color:#e9ecef;border:none;width:36px;height:36px;border-radius:4px;align-items:center;justify-content:center;cursor:pointer;color:#495057}.control-btn:hover{background-color:#dee2e6}input[type=number]{width:5em}.realtime-connection-off{color:red;font-weight:700}.realtime-connection-on{color:#27ae60;font-weight:700}.auth-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;z-index:1050;display:flex;align-items:center;justify-content:center}.auth-modal-dialog{background:#fff;border-radius:8px;width:100%;max-width:420px;box-shadow:0 10px 30px #0000004d;color:#212529}