.contenido-externo {
  overflow: hidden;
  transition: height 0.6s ease;
  position: relative;
}

.contenido-interno {
  opacity: 1;
  transition: opacity 0.3s ease;
}

.gradiente {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to bottom, #ffffff00 0%, #fdc95c 100%);
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.contenido-externo.expandido .gradiente {
  opacity: 0;
}

.btn-toggle {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 16px;
    background-color: #007bff00;
    color: #eb5d40;
    border: none;
    cursor: pointer;
    border-radius: 0;
    font-size: 14px;
    border-top: 1px solid #eb5d40;
    width: 100%;
}

.btn-toggle:hover {
  background-color: #0000000f;
}

.btn-toggle:active,
.btn-toggle:focus {
  outline: none;
}