/* Lista de carreras */
.carreras-lista {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  padding: 25px 12px 0px;
  margin-bottom: 110px;
}

.carrera {
  background: linear-gradient(135deg, #e0f2ff, #f8fbff);
  border-left: 5px solid #00ccff;
  border-radius: 10px;
  padding: 18px;
  width: 230px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.carrera:hover {
  transform: translateY(-5px);
}

.carrera h3 {
  color: #003366;
  font-weight: 600;
  margin-bottom: 6px;
}

.carrera p {
  color: #444;
  margin-bottom: 0;
}

/* Imágenes de carrera mejoradas */
.imagen-carrera {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 8px;
  max-height: 180px;
}

/* Sección de pensum */
.descarga-pensum {
  text-align: center;
  padding: 12px 0;
  font-size: 16px;
}

.boton-pensum {
  display: inline-block;
  background-color: #00ccff;
  color: white;
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.boton-pensum:hover {
  background-color: #0099cc;
}

/* Footer responsivo */
.pie-institucional {
  background-color: #002244;
  color: white;
  text-align: center;
  padding: 18px 10px 24px;
  font-size: 14px;
  width: 100%;
  box-shadow: 0 -2px 6px rgba(0,0,0,0.3);
  position: relative;
  margin-top: 60px;
}

@media (min-height: 800px) {
  .pie-institucional {
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 1000;
    margin-top: 0;
  }
}

/* Redes sociales */
.redes-sociales {
  margin-top: 10px;
}

.redes-sociales a {
  margin: 0 8px;
  display: inline-block;
  transition: transform 0.2s ease;
}

.redes-sociales img {
  width: 24px;
  height: 24px;
  filter: brightness(0) invert(1);
}

.redes-sociales a:hover {
  transform: scale(1.2);
}

/* Mensaje institucional */
.mensaje-institucional {
  background-color: #eaf4ff;
  border-left: 6px solid #00ccff;
  margin: 30px auto;
  padding: 22px 28px;
  width: 92%;
  max-width: 900px;
  border-radius: 10px;
  box-shadow: 2px 2px 12px rgba(0,0,0,0.05);
  font-size: 1.1em;
  line-height: 1.6;
  color: #002244;
}

.mensaje-institucional ul {
  list-style: none;
  padding-left: 0;
  margin-top: 10px;
}

.mensaje-institucional li {
  margin: 8px 0;
  padding-left: 1em;
  position: relative;
}

.mensaje-institucional li::before {
  content: "📌";
  position: absolute;
  left: 0;
}

/* Layout y tarjetas más amplias */
.header {
  padding: 8px 20px;
  min-height: 80px;
}

.footer {
  padding: 10px 20px;
  min-height: 60px;
}

.carrera-card {
  width: 280px;
  min-height: 260px;
  padding: 12px;
  font-size: 15px;
}

.carrera-card img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  max-height: 180px;
}

/* Modo responsivo para móviles */
@media (max-width: 600px) {
  .carrera {
    width: 90%;
    margin: 0 auto;
  }

  .carrera-card {
    width: 95%;
    font-size: 14px;
  }

  .imagen-carrera {
    max-height: 140px;
  }

  .pie-institucional {
    font-size: 13px;
    padding-bottom: 30px;
  }
}

@media (min-height: 500px) {
  .mensaje-institucional {
    margin-bottom: 80px;
  }
}

@media (max-height: 700px) {
  .carreras-lista {
    margin-bottom: 80px;
  }
}


/* 🧠 Footer inteligente */
.pie-institucional {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #002244;
  color: white;
  text-align: center;
  padding: 18px 10px 24px;
  font-size: 14px;
  z-index: 1000;
  box-shadow: 0 -2px 6px rgba(0,0,0,0.3);
  transition: transform 0.3s ease;
}

.pie-institucional.oculto {
  transform: translateY(100%);
}