<?php
header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');
echo json_encode([
    "valor_cota_centavos" => 299,
    "min_qtd" => 6,
    "sorteio_data" => "auto",  // ← Automático!
    "combos" => [
        ["qtd" => 6, "destaque" => false],
        ["qtd" => 10, "destaque" => true, "label" => "Mais vendido"],
        ["qtd" => 15, "destaque" => false],
        ["qtd" => 20, "destaque" => false]
    ]
]);