body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  color: #fff;
  text-align: center;
  background-attachment: fixed;
  background-size: cover;
}

.logo {
  width: 120px;
  margin: 20px auto;
  display: block;
}

.button-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-bottom: 30px;
}

.button {
  background-color: #ffffff;
  color: #000000;
  border: none;
  padding: 18px 35px;
  font-size: 22px;
  font-weight: bold;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.button:hover {
  background-color: #e0e0e0;
  transform: scale(1.05);
}

.portada {
  width: 90%;
  max-width: 800px;
  margin: 30px auto;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin: 40px auto;
  max-width: 1000px;
}

.grid img {
  width: 45%;
  max-width: 400px;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

/* Responsivo para móviles */
@media (max-width: 768px) {
  .button {
    font-size: 18px;
    padding: 14px 24px;
  }

  .grid img {
    width: 90%;
  }
}