style.css

body {
	padding: 2rem;
	font-family: -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
}

.whatsapp-btn-mobile {
  background: #25D366;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  bottom: 20px;
  right: 20px;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  transition: all 0.3s ease;
  z-index: 999;
}

.whatsapp-btn-mobile:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
}

@media (min-width: 768px) {
  .whatsapp-btn-mobile {
    display: none;
  }
}
h1 {
	font-size: 16px;
	margin-top: 0;
}

p {
	color: rgb(107, 114, 128);
	font-size: 15px;
	margin-bottom: 10px;
	margin-top: 5px;
}

.card {
	max-width: 620px;
	margin: 0 auto;
	padding: 16px;
	border: 1px solid lightgray;
	border-radius: 16px;
}

.card p:last-child {
	margin-bottom: 0;
}