body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b0b0b;
  color: white;
}

.container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: #111;
  padding: 20px;
}

.sidebar h2 {
  color: gold;
  margin-bottom: 30px;
}

.sidebar a {
  display: block;
  color: white;
  text-decoration: none;
  padding: 10px 0;
  opacity: 0.8;
}

.sidebar a:hover, .sidebar a.active {
  color: gold;
  opacity: 1;
}

.main {
  flex: 1;
  padding: 40px;
}

.hero {
  text-align: center;
  margin-top: 120px;
}

.hero h1 {
  font-size: 50px;
  color: gold;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 20px;
  background: gold;
  color: black;
  text-decoration: none;
  font-weight: bold;
}

.card {
  background: #1a1a1a;
  padding: 15px;
  margin: 10px 0;
  border-left: 3px solid gold;
}