*{box-sizing:border-box}body{margin:0;font-family:-apple-system,system-ui,Segoe UI,sans-serif;color:#222;background:#FAF7F2}
header{background:#2E7D6B;color:#fff;padding:18px 16px}header a{color:#fff;text-decoration:none;margin-right:14px;font-weight:600}
header b{font-size:20px;display:block;margin-bottom:6px}
main{max-width:980px;margin:auto;padding:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{background:#fff;border-radius:14px;padding:16px;box-shadow:0 1px 4px #0001}
.card h3{margin:0 0 6px;font-size:17px}.preco{font-size:22px;font-weight:700;color:#2E7D6B}
.btn{display:inline-block;background:#2E7D6B;color:#fff;padding:10px 16px;border-radius:10px;text-decoration:none;font-weight:600;border:0;font-size:15px}
.btn.off{background:#aaa}
label{display:block;margin:10px 0 4px;font-weight:600}input{width:100%;padding:10px;border:1px solid #ccc;border-radius:8px;font-size:16px}
.res{background:#E8F3EF;border-radius:10px;padding:14px;margin-top:14px;font-size:17px}
.ad{border:1px dashed #ccc;color:#aaa;text-align:center;padding:20px;margin:18px 0;border-radius:10px;font-size:12px}
footer{color:#888;font-size:12px;text-align:center;padding:30px}