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

body {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #f1f5f9;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 10%;
}

header h1 {
  font-weight: 700;
  font-size: 24px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #cbd5f5;
  transition: 0.3s;
}

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

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 10%;
  text-align: center;
}

.hero-text {
  max-width: 600px;
}

.hero h2 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  color: #cbd5f5;
  margin-bottom: 30px;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: #38bdf8;
  color: #0f172a;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

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

.features {
  padding: 60px 10%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
  transition: transform 0.3s;
}

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

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