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

body {
  line-height: 1.6;
  background: #0f172a;
  color: #fff;
}

header {
  background: #020617;
  padding: 20px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  color: #38bdf8;
}

nav a {
  color: #fff;
  margin-left: 20px;
  text-decoration: none;
  transition: 0.3s;
}

nav a:hover {
  color: #38bdf8;
}

.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  height: 80vh;
  padding: 20px;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  max-width: 600px;
  margin-bottom: 30px;
  color: #cbd5f5;
}

.btn {
  background: #38bdf8;
  color: #000;
  padding: 12px 25px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s;
}

.btn:hover {
  background: #0ea5e9;
}

.features {
  padding: 60px 50px;
  text-align: center;
}

.features h2 {
  margin-bottom: 40px;
}

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

.card {
  background: #020617;
  padding: 25px;
  border-radius: 10px;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

footer {
  background: #020617;
  padding: 20px;
  text-align: center;
  margin-top: 50px;
  color: #94a3b8;
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 2rem;
  }
}