.section{
  display:none;
  padding:70px 0;
}

.section.active{
  display:block;
}

.section-header {
  padding: 5px 50px;
  border-radius: 12px;
  text-align:center;
  margin-bottom:50px;
}


.section-header h2{
  font-size:2.1rem;
  color:#0b2a4a;
  margin-bottom:10px;
}

.subtitle{
  color:#5f6f82;
  font-size:1rem;
}

.highlight-box{
  background:#f1f6fb;
  border-left:6px solid #0b2a4a;
  border-radius:12px;
  padding:25px;
  margin-bottom:50px;
  display:flex;
  gap:20px;
  align-items:flex-start;
}

.highlight-box svg{
  width:40px;
  height:40px;
  stroke:#0b2a4a;
  stroke-width:1.6;
  flex-shrink:0;
}

.highlight-box p{
  margin:0;
  color:#2c3e50;
  line-height:1.6;
}

.grid.two-cols{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:30px;
}

.info-card{
  background:#ffffff;
  border-radius:16px;
  padding:30px;
  box-shadow:0 10px 25px rgba(0,0,0,.08);
}

.info-card h3{
  margin-top:0;
  margin-bottom:15px;
  color:#0b2a4a;
}

.info-card p{
  color:#444;
  line-height:1.6;
}

.list-check{
  list-style:none;
  padding:0;
  margin:0;
}

.list-check li{
  padding-left:28px;
  margin-bottom:12px;
  position:relative;
}

.list-check li::before{
  content:"✓";
  position:absolute;
  left:0;
  color:#0b2a4a;
  font-weight:bold;
}

.center{
  text-align:center;
  margin-top:50px;
}

.btn-outline{
  background:none;
  border:2px solid #0b2a4a;
  color:#0b2a4a;
  padding:12px 28px;
  border-radius:30px;
  font-size:.95rem;
  cursor:pointer;
  transition:.25s;
}

.btn-outline:hover{
  background:#0b2a4a;
  color:#fff;
}

.section-light{
  background:#f4f6f8;
}

.section-header.dark h2,
.section-header.dark .subtitle{
  color:#0b2a4a;
}

.utilities-grid{
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}

.utility-card{
  background:#fff;
  border-radius:16px;
  padding:30px;
  text-align:center;
  text-decoration:none;
  color:#1f2937;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
  transition:.25s ease;
}

.utility-card:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 40px rgba(0,0,0,.12);
}

.utility-icon{
  font-size:42px;
  margin-bottom:14px;
}

.utility-card h3{
  margin:10px 0;
  color:#0b2a4a;
}

.utility-card p{
  font-size:.95rem;
  opacity:.85;
}

.mail-grid{
  margin-top:50px;
}

.subsitios-grid{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:20px;
}

/* Card */
.subsitio-card{
  text-align:center;
  width:280px;          /* tamaño consistente */
}

/* Link = card completa */
.subsitio-card a{
  display:flex;
  flex-direction:column;
  align-items:center;
  height:100%;
  padding:30px 22px;

  border-radius:14px;
  background:#f7f7f7;
  text-decoration:none;

  color:#1f2937;
  box-shadow:0 8px 22px rgba(0,0,0,.08);
  transition:all .3s ease;
}

/* Hover azul institucional */
.subsitio-card a:hover{
  background:#003366;
  color:#ffffff;
  transform:translateY(-6px);
  box-shadow:0 16px 40px rgba(0,0,0,.18);
}

/* Ícono */
.subsitio-card i{
  font-size:42px;
  margin-bottom:15px;
  color:#003366;
  transition:color .3s ease;
}

/* Título */
.subsitio-card h2{
  font-size:18px;
  margin:0;
  color:#003366;
  transition:color .3s ease;
}

/* Texto */
.subsitio-card p{
  font-size:14px;
  line-height:1.45;
  margin-top:10px;
  color:#555;
  transition:color .3s ease;
}

/* Hover: todo en blanco */
.subsitio-card a:hover i,
.subsitio-card a:hover h2,
.subsitio-card a:hover p{
  color:#ffffff;
}

/* Mobile */
@media (max-width:768px){
  .subsitio-card{
    width:100%;
    max-width:340px;
  }
}


/* =========================
   UTILIDADES
   ========================= */

/* contenedor general */
.container{
  max-width:1200px;
  margin:auto;
  padding:0 20px;
}

/* header oscuro sobre fondo claro */
.section-header.dark h2{
  color:#ffffff;
}

.section-header.dark .subtitle{
  color:#d1d9e6;
}

/* grid de utilidades */
.utilities-grid{
  margin-top:40px;
  margin-bottom:50px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:25px;
}

/* cards de utilidades */
.utility-card{
  background:#ffffff;
  border-radius:16px;
  padding:28px 24px;
  text-align:center;
  text-decoration:none;
  color:var(--texto);

  box-shadow:0 10px 30px rgba(0,0,0,.08);
  transition:all .25s ease;
}

.utility-card:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 40px rgba(0,0,0,.15);
}

.utility-card h3{
  margin:14px 0 8px;
  color:var(--azul);
  font-size:1.15rem;
}

.utility-card p{
  margin:0;
  font-size:.95rem;
  color:#475569;
  line-height:1.4;
}

/* icono grande */
.utility-icon{
  font-size:2.2rem;
  line-height:1;
}

/* grid de correos */
.mail-grid{
  margin-top:30px;
  margin-bottom:50px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:30px;
}

/* listas */
.list{
  padding-left:18px;
  margin:0;
}

.list li{
  margin-bottom:8px;
  font-size:.95rem;
  color:#334155;
}

/* botón volver */
.center{
  text-align:center;
  margin-top:40px;
}

.btn-outline{
  background:transparent;
  border:2px solid var(--azul);
  color:var(--azul);
  padding:10px 22px;
  border-radius:999px;
  font-size:.95rem;
  font-weight:500;
  cursor:pointer;
  transition:all .2s ease;
}

.btn-outline:hover{
  background:var(--azul);
  color:#fff;
}

/* responsive */
@media (max-width:768px){

  .utilities-grid,
  .mail-grid{
    gap:20px;
  }

  .utility-card{
    padding:24px 18px;
  }

  .utility-icon{
    font-size:2rem;
  }
}