.carreras {
  background: var(--color-secundario);
}

.blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3rem 1.5rem;
  perspective: 1200px;
}

@media (min-width: 768px) {
  .blocks {
    grid-template-columns: repeat(2, 1fr);
  }
}

.block {
  background: var(--color-secundario);
  padding: 0.5rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  height: 24rem;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s;
  cursor: pointer;
}

.block__subtitle {
  font-size: 0.875rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
  color: var(--color-principal);
}

.block__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-texto);
  line-height: 1.2;
}

.block__text {
  flex-grow: 1;
  font-size: 1rem;
  line-height: 1.6rem;
  color: #666;
  margin-bottom: 1.5rem;
}

.block__cta {
  align-self: start;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 500;
  transition: background 0.3s;
  color: #fff;
  background-color: var(--color-principal);
}

.block__cta:hover {
  background-color: var(--color-hover);
}

.block__face {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height:100%;
  backface-visibility: hidden;
}

.block__face--front {
  border-radius: 15px;
  overflow: hidden;
}

.block__face--front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.block__face--back {
  transform: rotateY(180deg);
}

.block.is-flipped {
  transform: rotateY(180deg);
}

@media (hover: hover) {
  .block:hover {
    transform: rotateY(180deg);
  }
}

.block-blue, .block-green, .block-purple, .block-orange {
  --c: var(--color-principal);
}

.block-blue .block__subtitle,
.block-green .block__subtitle,
.block-purple .block__subtitle,
.block-orange .block__subtitle {
  color: var(--c);
}

.block-blue .block__cta,
.block-green .block__cta,
.block-purple .block__cta,
.block-orange .block__cta {
  background-color: var(--c);
}

.block-blue .block__cta:hover,
.block-green .block__cta:hover,
.block-purple .block__cta:hover,
.block-orange .block__cta:hover {
  background-color: var(--color-hover);
}

.blocks-centered {
  justify-content: center;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.blocks-centered .block {
  width: 100%;
  max-width: 400px;
}

@media (min-width: 768px) {
  .blocks-centered .block {
    width: 100%;
  }
}

/* Pedagogía */
.image-overlay {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 500px;
}

.image-overlay__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-overlay__mask {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(180, 180, 180, 0.6) 40%,
    rgba(220, 220, 220, 0.6) 100%
  );
  z-index: 1;
}

.image-overlay__content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  text-align: center;
  z-index: 2;
  max-width: 1500px;
  padding: 1rem;
}

.image-overlay__content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.image-overlay__content p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 0.8rem;
}

@media (max-width: 768px) {
  .image-overlay {
    height: auto;
  }
  .image-overlay__content {
    position: static;
    transform: none;
    padding: 2rem 1rem;
    text-align: left;
  }
  .image-overlay__content h2 {
    text-align: center;
  }
  .image-overlay__img {
    height: auto;
  }
  .image-overlay__mask {
    height: fit-content;
  }
  .enfoque {
    color: var(--color-texto);
  }
}

/* Galería */
.gallery {
  background: var(--color-menu);
  display: grid;
  grid-template-areas:
    "area4 area5 area7"
    "area4 area6 area7";
  grid-template-columns: 1fr 1.5fr 1fr;
  grid-template-rows: 0.5fr 0.5fr;
  gap: 16px;
  padding: 20px;
}

.item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid #ddd;
}

.item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.item-4 { grid-area: area4; height: 600px; }
.item-5 { grid-area: area5; height: 290px; }
.item-6 { grid-area: area6; height: 290px; }
.item-7 { grid-area: area7; height: 600px; }

@media (max-width: 768px) {
  .gallery {
    grid-template-areas:
      "area4"
      "area5"
      "area6"
      "area7";
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .item {
    height: 200px;
  }
}

/* Botón ver más */
.button-container {
  text-align: center;
  margin-top: 30px;
}

.ver-mas-btn {
  display: inline-block;
  background-color: var(--color-principal);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 16px;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.ver-mas-btn:hover {
  background-color: var(--color-hover);
  transform: scale(1.05);
}

/* Carrusel sistemas */
.carousel, .sistema {
  margin-top: 2%;
  position: relative;
  left: 0px;
  overflow: hidden;
  width: 100%;
  background: var(--color-header);
  padding: 10px 0;
}

.carousel-tr {
  display: flex;
  animation: scroll 20s linear infinite;
}

.sistema-1 {
  display: flex;
}

.carousel-tr img {
  border-radius: 15px;
  width: 100px;
  height: auto;
  margin: 0 20px;
  object-fit: contain;
  transition: transform 0.8s ease;
}

.sistema-1 img {
  border-radius: 15px;
  width: 190px;
  height: auto;
  margin: 0 80px;
  object-fit: contain;
}

.carousel-tr img:hover {
  transform: scale(1.1);
}

@keyframes scroll {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}