/* Estilos ligeros adicionales */
body {
    min-height: 100vh;
    /*background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f8fafc 100%);*/
}
#main nav {
  background-color: #0065a0;
}
.hero {
    background-color: #ffca28;
    /*background: radial-gradient(1000px 400px at 10% 10%, rgba(13,110,253,.07), transparent),
    radial-gradient(900px 300px at 90% 20%, rgba(220,53,69,.07), transparent),
    radial-gradient(700px 300px at 50% 90%, rgba(25,135,84,.07), transparent);
    border-bottom-left-radius: 2rem;
    border-bottom-right-radius: 2rem;*/
}
.course-card {
    transition: transform .15s ease, box-shadow .15s ease;
    border: 2px solid #0065a0;
}
.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 1rem 2rem rgba(0,0,0,.08);
}
.badge-pill {
    border-radius: 50rem;
}
footer {
  background-color: #005c82;
  color: #fff;
}
.footer-mini {
    font-size: .9rem;
    opacity: .8;
}
/* ====== Personalizados ====== */
.br-amarillo {
  border: 1px solid #ffca28;
}


/* ====== biblioteca.css ====== */
.pdf-library .book-card {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

.pdf-library .book-spine {
  position: absolute;
  inset: 0 0 0 0;
  background-image:
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 0 60%, transparent 60%),
    repeating-linear-gradient(90deg, rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.04) 2px, transparent 2px, transparent 6px);
  pointer-events: none;
}

.pdf-library .doc-thumb {
  width: 46px;
  height: 58px;
  font-weight: 700;
  /*background: #f1f3f5;*/
  background-color: red;
  color: #fff;
  border: 1px solid #e5e7eb;
}

.pdf-library .card-title {
  line-height: 1.2;
}

.pdf-library .doc-card[hidden] {
  display: none !important;
}

/* Botón de filtro activo con leve realce */
.pdf-library .nav-pills .nav-link.active {
  box-shadow: 0 0.25rem 0.75rem rgba(0,0,0,.08);
}

/* Píldoras con contador */
.pdf-library .filter-count {
  background: #f8f9fa;
  color: #212529;
  margin-left: .375rem;
}

/* Estilos para Tabla usuarios de prueba */
.table-wrap {
  overflow-x: auto;
  border: 1px solid #e5e7eb;
  border-radius: .7rem;
  background: #fff;
  margin-top: 2rem;
}
.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}
.user-table th, .user-table td {
  padding: .75rem .9rem;
  border-bottom: 1px solid #eef2f7;
  text-align: left;
}
.user-table thead th {
  background: #f3f4f6;
  color: #374151;
  position: sticky; top: 0;
}
.user-table tr:last-child td { border-bottom: 0; }