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

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 30px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav h1 {
  font-size: 32px;
}

nav a {
  color: white;
  margin-left: 44px;
  text-decoration: none;
  font-size: 18px;
  transition: 0.3s;
}

nav a:hover {
  color: #22c55e;
}

nav a.active {
  color: #22c55e;
  border-bottom: 2px solid #22c55e;
  padding-bottom: 2px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #22c55e;
  font-weight: bold;
}

.logo img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

.logo span {
  display: flex;
  align-items: center;
}

.card {
  background: #111;
  padding: 20px;
  border-radius: 12px;
  margin: 10px;
}

.center {
  text-align: center;
}

.hero {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-size: cover;
  background-position: center;
}

.overlay {
  background: rgba(0,0,0,0.7);
  padding: 40px;
  border-radius: 16px;
}