html,body{margin:0;background:#1a1c16;color:#e8e4d8;font-family:Segoe UI,system-ui,sans-serif;display:flex;justify-content:center}#app{display:flex;flex-direction:column;align-items:center;padding:12px}#track-canvas{background:#3a4a2e;border:2px solid #5a5a4a;border-radius:4px}#hud{margin-top:8px;display:flex;gap:20px;font-size:14px}#hud button{background:#4a5a3a;color:#e8e4d8;border:1px solid #6a7a5a;border-radius:4px;padding:4px 10px;cursor:pointer}#hud button.active{background:#7a9a5a}#currency-label{color:#d8c878}.shop-panel{display:none;width:100%;max-width:900px;margin-top:10px;background:#23261c;border:1px solid #5a5a4a;border-radius:4px;padding:12px 16px;box-sizing:border-box}.shop-panel.open{display:flex;gap:24px;flex-wrap:wrap}.shop-section{flex:1;min-width:260px}.shop-section h3{margin:0 0 8px;font-size:14px;color:#c9c07a}.shop-hint{font-weight:400;font-size:11px;color:#8a8a6a}.shop-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px solid #3a3a2e;font-size:12px}.shop-row-info strong{font-size:13px}.shop-level{color:#8a9a6a;font-size:11px}.shop-desc{color:#a8a488;font-size:11px;max-width:320px}.shop-buy{background:#4a5a3a;color:#e8e4d8;border:1px solid #6a7a5a;border-radius:4px;padding:4px 10px;cursor:pointer;min-width:56px}.shop-buy:disabled{opacity:.4;cursor:not-allowed}.retire-btn{margin-top:10px;width:100%;background:#6a3a3a;color:#e8e4d8;border:1px solid #8a5a5a;border-radius:4px;padding:8px 10px;cursor:pointer;font-size:12px}.retire-btn:hover{background:#7a4a4a}.offline-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#141610d9;color:#e8e4d8;display:flex;align-items:center;justify-content:center;font-size:16px;border-radius:4px}#app{position:relative}