body{color:#1f2937;background-color:#f3f4f6;margin:0;padding:0;font-family:system-ui,-apple-system,sans-serif}main{max-width:800px;margin:0 auto;padding:1rem}button{color:#fff;cursor:pointer;background-color:#10b981;border:none;border-radius:4px;padding:.5rem 1rem;font-weight:700}button:hover{background-color:#059669}button.danger{background-color:#ef4444}input[type=text],input[type=number],textarea,select{box-sizing:border-box;border:1px solid #d1d5db;border-radius:4px;width:100%;padding:.5rem}