body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: #f7f7f7;
}

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

header {
  background: #111827;
  color: white;
  padding: 20px 0;
  position: sticky;
  top: 0;
}

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

.nav a {
  color: #ddd;
  margin-left: 20px;
}


.hero {
  height: 100vh;
  background: 
    linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
    url('https://images.unsplash.com/photo-1503387762-592deb58ef4e') center/cover no-repeat;
  color: white;
  display: flex;
  align-items: center;
  text-align: center;
}


.hero h1 {
  font-size: 40px;
}

.buttons {
  margin-top: 20px;
}

.btn {
  padding: 12px 20px;
  margin: 10px;
  border-radius: 6px;
  display: inline-block;
}

.primary {
  background: #f59e0b;
  color: white;
}

.secondary {
  border: 1px solid white;
  color: white;
}

.section {
  padding: 70px 0;
}

.dark {
  background: #111827;
  color: white;
}

h2 {
  margin-bottom: 20px;
}

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

.card {
  background: white;
  padding: 20px;
  border-radius: 10px;
}

.dark .card {
  background: #1f2937;
  color: white;
}

footer {
  background: #000;
  color: white;
  text-align: center;
  padding: 15px;
}