body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: #f4f4f4;
}
header {
  background: linear-gradient(135deg, #25d366, #128c7e);
  padding: 20px;
  color: white;
  text-align: center;
}
header h1 {
  margin: 0;
  font-size: 2.5em;
}
.slider {
  background: #fff;
  overflow: hidden;
  white-space: nowrap;
  padding: 10px 0;
  font-size: 1.2em;
  color: #128c7e;
  animation: slide 25s linear infinite;
}
@keyframes slide {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}
.packages {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 40px 20px;
  gap: 30px;
}
.card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  padding: 25px;
  max-width: 350px;
  flex: 1;
  transition: 0.3s;
  border-top: 5px solid #25d366;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.card:hover {
  transform: translateY(-10px);
}
.card h2 {
  font-size: 1.8em;
  color: #128c7e;
}
.price {
  font-size: 1.5em;
  font-weight: bold;
  color: #25d366;
}
.features {
  list-style: none;
  padding: 0;
  line-height: 1.6;
  color: #444;
}
.features li::before {
  content: '✅ ';
  color: #25d366;
}
.order-btn {
  background: #25d366;
  color: white;
  padding: 12px;
  text-align: center;
  font-weight: bold;
  border-radius: 10px;
  text-decoration: none;
  transition: 0.3s;
}
.order-btn:hover {
  background: #128c7e;
}
.footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 20px;
  font-size: 0.9em;
}
.powered {
  margin-top: 10px;
  color: #25d366;
}
@media (max-width: 768px) {
  .packages {
    flex-direction: column;
    align-items: center;
  }
}