* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  background: #111;
  color: #f0f0f0;
  line-height: 1.6;
  padding: 20px;
}

.topo {
  text-align: center;
  margin-bottom: 40px;
  animation: fadeInDown 1s ease-out;
}

.topo h1 {
  font-size: 2.5em;
  color: #00ffff;
}

.menu {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
}

.menu a {
  color: #fff;
  text-decoration: none;
  background-color: #333;
  padding: 8px 16px;
  border-radius: 5px;
  transition: 0.3s;
}

.menu a:hover {
  background-color: #00ffff;
  color: #000;
}

main {
  max-width: 800px;
  margin: 0 auto;
}

.secao {
  margin-bottom: 50px;
  padding: 20px;
  background: #1a1a1a;
  border-left: 5px solid #00ffff;
  border-radius: 5px;
}

/* Footer */
.rodape {
  text-align: center;
  font-size: 0.9em;
  color: #777;
  margin-top: 60px;
}

/* Animações */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeInDown 1s ease forwards;
}

.slide-up {
  animation: slideUp 1s ease forwards;
}