body {
  margin: 0;
  font-family: Arial;
  background: linear-gradient(135deg, #000, #111);
  color: white;
}

a {
  color: white;
  text-decoration: none;
}

a:hover {
  color: #00ff88;
}

button {
  padding: 12px 25px;
  background: #00ff88;
  border: none;
  cursor: pointer;
  border-radius: 6px;
  transition: 0.2s;
}

button:hover {
  transform: scale(1.05);
}

.hero {
  text-align: center;
  padding: 100px 20px;
}

h1 {
  font-size: 50px;
  color: #00ff88;
}

p {
  color: #aaa;
}

.nav {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  background: #111;
  border-bottom: 1px solid #222;
}

.box {
  border: 1px solid #333;
  padding: 20px;
  width: 200px;
  border-radius: 10px;
}

.box:hover {
  border-color: #00ff88;
}