:root{color:#1f2937;background:#f5f7fb;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0}.app{max-width:1100px;margin:0 auto;padding:24px}h1{margin:0 0 20px;font-size:28px}.filters{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:20px;display:grid}.field{flex-direction:column;gap:8px;font-weight:600;display:flex}.field select{background:#fff;border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;font-size:14px}.chart{background:#fff;border:1px solid #e5e7eb;border-radius:12px;width:100%;height:460px;padding:8px}@media (width<=900px){.filters{grid-template-columns:1fr}}