body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f7f9;
  color: #333;
}

header {
  background: #0d1117;
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}

section {
  padding: 40px 20px;
  max-width: 800px;
  margin: auto;
}

.features ul {
  list-style: none;
  padding: 0;
}

.features li::before {
  content: "✅ ";
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: #2f81f7;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #1a5edb;
}

footer {
  text-align: center;
  padding: 20px;
  background: #eaeaea;
  font-size: 0.9em;
}

/* Animations */
.fade-in {
  animation: fadeIn 2s ease-in;
}

.slide-in {
  animation: slideIn 1.5s ease-out;
}

.bounce-in {
  animation: bounceIn 1.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { transform: translateX(-100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes bounceIn {
  0% { transform: scale(0.5); opacity: 0; }
  60% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); }
}