/* Utilidades — visibilidad y layout */
.is-hidden {
  display: none !important;
}

.content-section.is-hidden {
  display: none !important;
}

.u-flex {
  display: flex;
}

.u-flex-wrap {
  display: flex;
  flex-wrap: wrap;
}

.u-flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.u-flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gap-5 { gap: 5px; }
.gap-6 { gap: 6px; }
.gap-8 { gap: 8px; }
.gap-10 { gap: 10px; }

.u-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}