:root{color-scheme:light;font-family:system-ui,-apple-system,sans-serif}body{margin:0;background:#f7f8fa;color:#1a1a1a}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid #e2e2e2;padding:8px 12px;text-align:left;font-size:14px}th{background:#f0f1f3}.board-toolbar{display:flex;gap:12px;align-items:center;padding:16px}.route-card{border:1px solid #ddd;border-radius:8px;margin:12px 16px;overflow:hidden}.route-card-header{background:#eef2ff;padding:10px 14px;display:flex;justify-content:space-between;align-items:center}button{cursor:pointer}