body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}#app-header{position:fixed;top:0;left:0;right:0;height:50px;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:space-between;align-items:center;padding:0 20px;box-shadow:0 2px 8px #0000001a;z-index:1000}#app-header h1{margin:0;font-size:18px;font-weight:600;color:#fff;display:flex;align-items:center;gap:10px}#user-info{display:flex;align-items:center;gap:15px;color:#fff;font-size:14px}#logout-btn{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease}#logout-btn:hover{background:#ffffff4d;transform:translateY(-1px)}#logout-btn:active{transform:translateY(0)}#tradingview_container{width:100%;height:calc(100vh - 50px);margin-top:50px}.loading{display:flex;justify-content:center;align-items:center;height:calc(100vh - 50px);font-size:18px;color:#666}