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

body {
  line-height: 1.6;
  color: #333;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

header {
  background: #111;
  color: white;
  padding: 15px 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

nav a:hover {
  color: #00bcd4;
}

.hero {
  height: 90vh;
  background: linear-gradient(135deg, #00bcd4, #3f51b5);
  color: white;
  display: flex;
  align-items: center;
  text-align: center;
}

.hero h2 {
  font-size: 3rem;
}

.hero p {
  margin: 20px 0;
  font-size: 1.2rem;
}

.btn {
  background: white;
  color: #3f51b5;
  padding: 10px 25px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.btn:hover {
  background: #eee;
}

.section {
  padding: 60px 0;
  text-align: center;
}

.light {
  background: #f4f4f4;
}

.grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 20px;
}