* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; color: #222; background: #f5f5f5; }
header { background: #fff159; padding: 12px 24px; }
header h1 { margin: 0; font-size: 1.4rem; }
main { max-width: 860px; margin: 32px auto; padding: 24px; background: #fff; border-radius: 8px; }
.product { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.product img { width: 100%; border-radius: 6px; }
.price { font-size: 1.8rem; font-weight: 600; }
button { background: #009ee3; color: #fff; border: 0; border-radius: 6px; padding: 14px 24px; font-size: 1rem; cursor: pointer; }
button:disabled { opacity: .6; cursor: default; }
.error { color: #c00; }
.result h2 { margin-top: 0; }
.result.ok h2 { color: #00a650; }
.result.pending h2 { color: #f5a623; }
.result.fail h2 { color: #c00; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
dt { font-weight: 600; }
dd { margin: 0; word-break: break-all; }
@media (max-width: 640px) { .product { grid-template-columns: 1fr; } }
header { display: flex; justify-content: space-between; align-items: center; }
header a { color: #222; text-decoration: none; }
.cart-link { font-weight: 600; }
label { display: block; margin: 12px 0; }
input[type=number] { width: 72px; padding: 6px; margin-left: 8px; }
table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid #eee; }
.thumb { width: 64px; border-radius: 4px; }
button.secondary { background: #eee; color: #222; margin-bottom: 16px; }
#wallet_container { max-width: 360px; }