/* Estilos generales */
.card-body {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 25px;
    margin: 20px auto;
    max-width: 900px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }

  .subtitle {
    color: #555;
    font-size: 14px;
    display: block;
    margin-bottom: 20px;
    line-height: 1.5;
  }

  .subtitle a {
    color: #900000;
    text-decoration: none;
    font-weight: 600;
  }

  .subtitle a:hover {
    text-decoration: underline;
  }

  /* Estilos para el formulario */
  .form-horizontal {
    margin-top: 15px;
  }

  .form-group.row {
    margin-bottom: 20px;
    align-items: center;
  }

  .form-control-label {
    color: #344050;
    font-weight: 600;
    font-size: 14px;
    padding-right: 15px;
    text-align: right;
  }

  .form-control {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 10px 15px;
    font-size: 14px;
    color: #344050;
    background-color: #f9fafc;
    transition: all 0.3s;
    width: 100%;
  }

  .form-control:focus {
    border-color: #900000;
    box-shadow: 0 0 0 0.2rem rgba(44, 123, 229, 0.25);
    background-color: #fff;
    outline: 0;
  }

  /* Estilos para las tablas de ensayos */
  table-responsive {
    margin-top: 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}
th {
    background-color: #f2f2f2;
}
.form-control {
    width: 100%;
    padding: 8px;
    margin: 5px 0;
    box-sizing: border-box;
}
.btn {
    padding: 10px 15px;
    margin: 10px 5px;
    cursor: pointer;
}
.btn-primary {
    background-color: #900000;
    color: white;
    border: none;
}
.btn-secondary {
    background-color: #6c757d;
    color: white;
    border: none;
}
.hidden {
    display: none;
}