/* Global */
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top, #111 0%, #000 100%);
  color: #fff;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(0, 0, 0, 0.8);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar img {
  height: 40px;
}

.navbar a {
  margin-left: 1rem;
  text-decoration: none;
  color: #FFD700;
  font-weight: bold;
  transition: color 0.3s ease;
}

.navbar a:hover {
  color: #fff;
}

.buy-now {
  background: #FFD700;
  color: #000;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: bold;
}

/* Hero */
.hero {
  text-align: center;
  padding: 6rem 2rem;
  background: radial-gradient(circle at center, #222 0%, #000 100%);
}

.hero-logo {
  width: 140px;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 20px #FFD700);
}

h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  color: #FFD700;
  text-shadow: 0 0 15px #FFD700;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  color: #eee;
}

.cta-buttons .btn {
  display: inline-block;
  margin: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: #FFD700;
  color: #000;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-buttons .btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px #FFD700;
}

/* Features */
.features {
  padding: 4rem 2rem;
  text-align: center;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #FFD700;
  text-shadow: 0 0 10px #FFD700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #111;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card h3 {
  color: #FFD700;
}

.card p {
  color: #ddd;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.6);
}

/* How to Buy */
.how-to-buy {
  padding: 4rem 2rem;
  text-align: center;
}

.how-to-buy h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #FFD700;
  text-shadow: 0 0 10px #FFD700;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.step {
  background: #111;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
}

.step h3 {
  color: #FFD700;
}

.step p {
  color: #ddd;
}

.contract {
  margin-top: 2rem;
  font-size: 1.1rem;
  background: #111;
  padding: 1rem;
  border-radius: 8px;
  display: inline-block;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
  color: #FFD700;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.8);
  color: #FFD700;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 1s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s ease-out;
}

.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.bounce {
  animation: bounce 2s infinite;
}

.zoom {
  transition: transform 0.3s ease;
}

.zoom:hover {
  transform: scale(1.05);
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  .navbar {
    flex-direction: column;
  }
  .navbar nav {
    margin-top: 1rem;
  }
}