.whatsapp-contact{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:80;display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid #fff;border-radius:999px;background:#146c43;color:#fff!important;font:600 16px/1.2 Arial,sans-serif;text-decoration:none!important;box-shadow:0 4px 16px #0003}
.whatsapp-contact{pointer-events:auto;touch-action:manipulation;cursor:pointer;isolation:isolate}
.whatsapp-contact:hover{background:#0e5433}.whatsapp-contact:focus-visible{outline:3px solid #ec4a30;outline-offset:4px}
@media(max-width:600px){.whatsapp-contact{right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));padding:0 18px}}
@media print{.whatsapp-contact{display:none}}
#whatsapp-dialog{width:min(480px,calc(100% - 24px));margin:auto;padding:22px;border:1px solid #ccc;border-radius:10px;background:#fff;color:#171717;max-height:80vh;overflow:auto;font:16px/1.6 Arial,sans-serif}
#whatsapp-dialog::backdrop{background:#0009}.wa-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.wa-heading h2{font-size:20px;margin:0;letter-spacing:normal}
#wa-number{display:block;width:100%;box-sizing:border-box;margin:16px 0;font:600 22px/1.4 Arial,sans-serif;color:#171717;background:#f5f5f2;border:1px solid #ccc;padding:12px;-webkit-user-select:text;user-select:text}
.wa-actions{display:flex;flex-wrap:wrap;gap:10px}#whatsapp-dialog button,#whatsapp-dialog a{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border:1px solid #888;background:#fff;color:#171717;font:inherit;font-size:15px;text-decoration:none;cursor:pointer}
#whatsapp-dialog #wa-app{background:#146c43;color:white;border-color:#146c43}.wa-help{font-size:14px;color:#555}.wa-heading button{white-space:nowrap}