body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
}

header {
  background: #1e293b;
  padding: 15px;
  position: sticky;
  top: 0;
}

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

nav h1 {
  margin: 0;
  font-size: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 15px;
  font-weight: bold;
}

.hero {
  padding: 60px 20px;
  text-align: center;
}

.hero h2 {
  font-size: 32px;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 20px;
  background: #38bdf8;
  color: black;
  border-radius: 8px;
  text-decoration: none;
}

.section {
  padding: 40px 20px;
}

.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
}

#menu-btn {
  font-size: 24px;
  background: none;
  border: none;
  color: white;
}

#mobile-menu {
  display: none;
  flex-direction: column;
  background: #1e293b;
  padding: 10px;
}

#mobile-menu a {
  padding: 10px;
}