body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #0c0c0c;
  color: white;
}

header {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  background-color: #121212;
  position: sticky;
  top: 0;
  z-index: 10;
}

header img {
  height: 40px;
  margin-right: 30px;
}

nav {
  display: flex;
  gap: 25px;
  align-items: center;
}

nav a {
  color: #c2f8d3;
  text-decoration: none;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

main {
  display: flex;
  padding: 20px;
}

.contenido {
  flex: 1;
}

.publicidad {
  width: 160px;
  background-color: #2c2c2c;
  margin-left: 20px;
  padding: 10px;
  text-align: center;
  font-size: 14px;
}

h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 15px;
  padding: 15px 0;
  -webkit-overflow-scrolling: touch;
}

.slider::-webkit-scrollbar {
  display: none;
}

.recuadro {
  flex: 0 0 30%; /* 3 recuadros por fila en PC */
  height: 250px;
  background-color: #1f1f1f;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
  transition: transform 0.3s ease;
}

.recuadro:hover {
  transform: scale(1.03);
}

/* Barra horizontal de publicidad al final */
.publi-horizontal {
  background-color: #2c2c2c;
  padding: 12px;
  text-align: center;
  margin-top: 30px;
  border-radius: 4px;
}

/* Scroll suave para sliders */
.slider::-webkit-scrollbar {
  height: 6px;
}
.slider::-webkit-scrollbar-thumb {
  background: #555;
  border-radius: 10px;
}
.logo {
  height: 50px;
  margin: 0 20px 0 10px;
  object-fit: contain;
  filter: drop-shadow(0px 1px 3px rgba(0, 0, 0, 0.5));
}
@media (max-width: 768px) {
  .recuadro {
    flex: 0 0 80%; /* 1.5 recuadros en pantalla en móviles */
  }
}
/* Publicidad vertical solo en PC */
.publi-vertical {
  display: none;
}

@media (min-width: 1024px) {
  .contenedor-principal {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }

  .contenido-principal {
    flex: 1;
  }

  .publi-vertical {
    display: block;
    width: 160px;
    background-color: #1e1e1e;
    margin-left: 20px;
    padding: 10px;
    border-radius: 6px;
    color: white;
    text-align: center;
    position: sticky;
    top: 90px;
  }
}