/* --- Estilo general --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Arial, sans-serif;
}

body {
  background: #303845; /* fondo gris azulado */
  color: #4E4D5E;      /* gris oscuro */
  line-height: 1.5;
  padding: 0; 
}

/* --- Header --- */
header {
  text-align: center;
  padding: 30px 15px;
  background: #102E58; /* azul oscuro */
  color: #fff;
  position: relative;
}

header .logo {
  max-width: 320px;
  margin-bottom: 15px;
}

header h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

header p {
  font-size: 1rem;
  opacity: 0.9;
}

/* --- Grid principal --- */
main.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 30px;
  justify-content: center;   /* Centra los elementos en filas incompletas */
}

/* --- Cards estándar --- */
.card {
  background: #fff;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  text-decoration: none;
  color: #4E4D5E; /* texto gris oscuro */
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out, background 0.3s;
}

.card i {
  color: #2A77AE; /* azul medio */
  margin-bottom: 10px;
}

.card h2 {
  margin: 10px 0 5px 0;
  font-size: 1.2rem;
}

.card p {
  font-size: 0.95rem;
  color: #4E4D5E;
}

.card:hover {
  background: #e9f4fb;         /* azul muy claro */
  border: 1px solid #2A77AE;   /* azul medio */
  transform: translateY(-4px);
  box-shadow: 0 6px 10px rgba(0,0,0,0.15);
}

/* --- Grupo de tarjetas --- */
.card-group {
  background: #fff;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.2s ease-in-out;
}

.card-group i {
  color: #2A77AE;
  margin-bottom: 10px;
}

.card-group h2 {
  margin: 10px 0 5px 0;
  font-size: 1.3rem;
}

.card-group p {
  color: #4E4D5E;
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.card-group:hover {
  transform: translateY(-3px);
}

/* --- Subcards en cuadrícula --- */
.subcards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  width: 100%;
  margin-top: 10px;
}

/* --- Subcards en lista vertical --- */
.subcards-vertical {
  list-style: none;
  padding: 0;
  margin: 10px 0 0 0;
  width: 100%;
  text-align: left;
}

.subcards-vertical li {
  margin-bottom: 8px;
}

/* --- Estilo común para subcards --- */
.subcards a,
.subcards-vertical a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #fff;
  border-radius: 15px;
  padding: 15px;
  font-size: 0.95rem;
  text-decoration: none;
  color: #4E4D5E;
  border: 1px solid #ddd;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out, background 0.3s;
}

.subcards a i,
.subcards-vertical a i {
  color: #2A77AE;
}

.subcards a:hover,
.subcards-vertical a:hover {
  background: #e9f4fb;      /* azul claro */
  border-color: #2A77AE;
  color: #102E58;
  transform: translateY(-2px);
  box-shadow: 0 6px 10px rgba(0,0,0,0.15);
}

/* --- Botón de regreso --- */
.back-link {
  display: inline-block;
  margin-top: 15px;
  padding: 8px 14px;
  background-color: #2A77AE; /* azul medio */
  color: #fff !important;
  border: none;
  border-radius: 25px;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.3s ease;
  font-size: 0.9rem;
}

.back-link i {
  margin-right: 6px;
}

.back-link:hover {
  background-color: #102E58; /* azul oscuro */
  color: #fff !important;
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 20px;
  background: #102E58; /* azul oscuro */
  color: #fff;
  margin-top: 20px;
}

footer .footer-img {
  max-width: 80px;
  margin-bottom: 10px;
}

/* --- Extra: destacar con #B59BA3 (resaltados suaves) --- */
.highlight {
  background: #B59BA3;
  color: #fff;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.85rem;
}
.grid-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;   /* Centra los botones sobrantes */
}