* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}
    
body {
  background: #0f172a;
  color: white;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  background: rgba(0,0,0,0.3);
}

header h1 {
  color: #22c55e;
}

header a {
  color: white;
  text-decoration: none;
  margin-left: 20px;
}

.hero {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
}

.hero h2 {
  font-size: 40px;
  margin-bottom: 20px;
}

.hero p {
  color: #cbd5e1;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 15px 25px;
  border-radius: 10px;
  text-decoration: none;
  margin: 10px;
  transition: 0.3s;
}

.btn-download {
  background: #22c55e;
  color: white;
}

.btn-download:hover {
  background: #16a34a;
  transform: scale(1.05);
}

.btn-whatsapp {
  background: #25D366;
  color: white;
}

.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: scale(1.05);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  padding: 50px;
}

.card {
  background: rgba(255,255,255,0.05);
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.1);
}

.card h3 {
  margin-bottom: 10px;
  color: #22c55e;
}

footer {
  text-align: center;
  padding: 20px;
  color: #94a3b8;
  margin-top: 30px;
}

@media(max-width: 600px){
  .hero h2 {
    font-size: 28px;
  }
}