* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
}

body {
  background-color: #fff;
  color: #000;
  line-height: 1.6;
  font-size: 16px;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

button, .btn {
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  border-radius: 4px;
  text-align: center;
}

.btn {
  background-color: #000;
  color: #fff;
  transition: 0.3s;
}

.btn:hover {
  background-color: #333;
}

.btn-outline {
  background: transparent;
  border: 2px solid #000;
}

.btn-outline:hover {
  background: #000;
  color: #fff;
}

document.addEventListener('DOMContentLoaded', function() {
  const whatsappIcon = document.querySelector('.whatsapp-icon');
  if (whatsappIcon) {
    setTimeout(() => {
      whatsappIcon.style.display = 'flex'; // show after 5 seconds
      whatsappIcon.style.opacity = 0;
      whatsappIcon.style.transition = 'opacity 0.5s ease-in-out';
      requestAnimationFrame(() => { whatsappIcon.style.opacity = 1; });
    }, 5000);
  }
});