/* ════════════════════════════════════════════════════════════ */
/* CSS PARA AULAS EM CONSTRUÇÃO (FUTURAS - Ex: Aula 02+)         */
/* ════════════════════════════════════════════════════════════ */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111110;
  color: #e8e8e4;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: #161614;
  border: 1px solid #2a2a28;
  border-radius: 16px;
  padding: 3rem 3.5rem;
  max-width: 520px;
  width: 90%;
  text-align: center;
}

.back {
  display: inline-block;
  font-size: 12px;
  color: #555;
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.15s;
}

.back:hover {
  color: #4da6ff;
}

.num {
  font-size: 11px;
  font-weight: 500;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.titulo {
  font-size: 20px;
  font-weight: 500;
  color: #e8e8e4;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

.data {
  font-size: 14px;
  color: #555;
  margin-bottom: 2.5rem;
}

.badge {
  display: inline-block;
  background: #1c1c1a;
  color: #555;
  font-size: 12px;
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 2.5rem;
  border: 1px solid #2a2a28;
}

.em-progresso {
  font-size: 13px;
  color: #444;
  font-style: italic;
}

.dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #333;
  margin: 0 3px;
  animation: pulse 1.4s ease-in-out infinite;
}

.dot:nth-child(2) {
  animation-delay: 0.2s;
}

.dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes pulse {
  0%,
  80%,
  100% {
    opacity: 0.2;
    transform: scale(0.8);
  }
  40% {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 640px) {
  .card {
    padding: 2rem 1.5rem;
  }

  .titulo {
    font-size: 18px;
  }
}