body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  color: white;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.35);
  z-index: -1;
}

body::after {
  content: '';
  background: url('https://web.big-bang.cl/wp-content/uploads/2020/03/fondo2-1400x588.jpg') no-repeat center center fixed;
  background-size: cover;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -2;
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px 10px 10px;
  text-align: center;
}

.logo {
  height: 200px;
  margin-bottom: 10px;
}

.titulo {
  background-color: rgba(16, 10, 46, 0.6);
  padding: 15px 30px;
  border-radius: 10px;
  font-size: 1.8rem;
  color: #00ffcc;
}

.main-opciones {
  max-width: 800px;
  margin: 40px auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
  padding: 20px;
}

.opcion-box {
  background-color: rgba(0, 191, 255, 0.8);
  text-decoration: none;
  color: white;
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  transition: transform 0.3s, background-color 0.3s;
}

.opcion-box p {
  font-size: 1rem;
  font-weight: normal;
  margin: 10px 0 0;
}

.opcion-box:hover {
  background-color: rgba(0, 191, 255, 1);
  transform: scale(1.05);
}
.opcion-box i {
  margin-bottom: 10px;
  color: #fff;
}