body,html{height:100%;display:flex;flex-direction:column}.header{background:#2c3e50;color:#fff;text-align:center;padding:10px;font-size:18px;font-weight:700;position:relative}.back-btn{position:absolute;left:10px;top:10px;background:#3498db;color:#fff;border:none;padding:5px 10px;border-radius:5px;cursor:pointer}.legend{background:#fff;padding:10px;border-radius:8px;box-shadow:0 2px 6px #0003;font-size:13px;line-height:1.5}.legend i{width:14px;height:14px;float:left;margin-right:8px;opacity:.9}.route-icon{position:absolute;bottom:20px;right:20px;z-index:1100;background:#2ecc71;color:#fff;border:none;border-radius:50%;width:50px;height:50px;cursor:pointer;font-size:24px;box-shadow:0 2px 6px #0000004d}.routing-panel{position:absolute;bottom:80px;right:20px;z-index:1000;background:#ffffffe6;padding:10px;border-radius:8px;box-shadow:0 2px 6px #0003;font-size:13px;width:260px;display:none}.routing-panel h3{margin:0 0 10px;font-size:14px;text-align:center}.btn-row{display:flex;gap:5px;margin-bottom:5px}.routing-panel button{flex:1;padding:6px;border:none;border-radius:5px;background:#3498db;color:#fff;cursor:pointer;font-size:12px}.routing-panel button.reset{background:#e74c3c}.routing-panel button.find{background:#2ecc71}.route-info{margin-top:8px;font-size:12px;color:#2c3e50;text-align:center}