.receipt { margin: 22px 0; padding: 18px; border: 1px solid #ccd9ce; border-radius: 12px; background: #f0f6ee; }
.receipt h3 { font-size: 16px; margin: 0 0 8px; }
.receipt p { font-size: 12px; line-height: 1.7; }
.whatsapp { background: #1b7044; }
.whatsapp:hover { background: #145633; }