.modulo-avisos .header-institution {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 1.2rem;
    border-bottom: 4px solid var(--accent-gold);
    border-radius: 6px 6px 0 0;
  }
  .modulo-avisos .main-card {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color);
    padding: 2rem;
    margin-top: 1.5rem;
    margin-bottom: 3rem;
  }
  .modulo-avisos .page-title {
    font-weight: 700;
    color: #fff;
    background-color: var(--primary-color);
    font-size: 1.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 6px;
    padding: 14px;
  }
  .modulo-avisos .section-heading {
    color: var(--secondary-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #edf2f7;
    padding-bottom: 0.4rem;
  }
  .modulo-avisos .text-justify {
    text-align: justify;
    color: #4a5568;
    line-height: 1.7;
    font-size: 0.95rem;
  }
  .modulo-avisos .modal-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: #ffffff;
    transition: box-shadow 0.2s;
  }
  .modulo-avisos .modal-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .modulo-avisos .modal-header-custom {
    background-color: #f7fafc;
    border-bottom: 1px solid var(--border-color);
    padding: 10px 15px;
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 1rem;
  }
  .modulo-avisos .tree-container {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: #ffffff;
  }
  /* Nivel 1: Áreas principales */
  .modulo-avisos details.area-item {
    border-bottom: 1px solid #edf2f7;
    padding: 8px 16px;
  }
  .modulo-avisos details.area-item:last-child {
    border-bottom: none;
  }
  .modulo-avisos details.area-item > summary {
    font-weight: 600;
    font-size: 0.95rem;
    color: #2d3748;
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-left: 20px;
  }
  .modulo-avisos details.area-item > summary::before {
    content: "\f0da";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 2px;
    color: #718096;
    transition: transform 0.15s;
  }
  .modulo-avisos details.area-item[open] > summary::before {
    content: "\f0d7";
  }
  /* Nivel 2: Subcarpetas por modalidad */
  .modulo-avisos .doc-list {
    padding-left: 15px;
    margin-top: 8px;
  }
  .modulo-avisos details.sub-item {
    margin-bottom: 6px;
    border-left: 2px solid #e2e8f0;
    padding-left: 10px;
  }
  .modulo-avisos details.sub-item > summary {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--secondary-color);
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-left: 22px;
  }
  .modulo-avisos details.sub-item > summary::before {
    content: "\f07b"; /* Ícono de carpeta cerrada */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 2px;
    color: var(--accent-gold);
    font-size: 0.85rem;
  }
  .modulo-avisos details.sub-item[open] > summary::before {
    content: "\f07c"; /* Ícono de carpeta abierta */
  }
  .modulo-avisos .sub-doc-list {
    padding-left: 10px;
    margin-top: 4px;
    margin-bottom: 6px;
  }
  /* Archivos de PDF */
  .modulo-avisos .doc-link {
    display: flex;
    align-items: center;
    padding: 5px 10px;
    border-top: 1px solid #f7fafc;
    color: #2b6cb0;
    text-decoration: none;
    font-size: 0.88rem;
    border-radius: 4px;
  }
  .modulo-avisos .doc-link:hover {
    background-color: #ebf8ff;
    color: #2c5282;
  }
  .modulo-avisos .doc-link::before {
    content: "\f1c1";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #e53e3e;
    font-size: 0.85rem;
    margin-right: 8px;
  }