body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #0f0f0f;
  color: #fff;
}

header {
  background: #1a1a1a;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: #eee;
}

nav a:hover {
  color: #00ffd5;
}

.hero {
  padding: 3rem;
  text-align: center;
  background: linear-gradient(to right, #222, #111);
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero .btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background: #00ffd5;
  color: #000;
  font-weight: bold;
  border-radius: 5px;
  margin-top: 1rem;
  text-decoration: none;
}

footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  background: #111;
}