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

body {
  background: #f5f7fa;
  color: #333;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 10%;
  background: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

nav a:hover {
  color: #0077ff;
}

.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(135deg, #0077ff, #00c6ff);
  color: white;
}

.hero button {
  margin-top: 20px;
  padding: 12px 25px;
  border: none;
  background: white;
  color: #0077ff;
  font-weight: bold;
  cursor: pointer;
  border-radius: 5px;
}

.features {
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 80px 10%;
}

.card {
  background: white;
  padding: 30px;
  width: 250px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
}

footer {
  text-align: center;
  padding: 20px;
  background: #222;
  color: white;
}