/* ── STILREFERENZ ── */
.sref-slot {
  width: 100%;
  aspect-ratio: 4/3;
  border: 1px solid var(--border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: var(--xlight);
  transition: border-color 0.15s;
  display: block;
  margin-bottom: 2px;
}
.sref-slot:hover {
  border-color: var(--mid);
}
.sref-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
}
.sref-empty span {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mid);
}
.sref-filled {
  position: absolute;
  inset: 0;
  display: none;
}
.sref-filled img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* Filigran-Kreuz — zwei 1px Diagonalen via Gradient, wie die A/B-Linie */
.sref-clear {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 16px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-size: 0;
  opacity: 0;
  transition: opacity 0.15s;
}
.sref-clear::before,
.sref-clear::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.sref-clear::before {
  background: linear-gradient(
    to bottom right,
    transparent calc(50% - 0.5px),
    var(--black) calc(50% - 0.5px),
    var(--black) calc(50% + 0.5px),
    transparent calc(50% + 0.5px)
  );
}
.sref-clear::after {
  background: linear-gradient(
    to top right,
    transparent calc(50% - 0.5px),
    var(--black) calc(50% - 0.5px),
    var(--black) calc(50% + 0.5px),
    transparent calc(50% + 0.5px)
  );
}
.sref-filled:hover .sref-clear {
  opacity: 1;
}
.sref-clear:hover {
  opacity: 0.5 !important;
}
.sref-hint {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--light);
  margin-top: 4px;
  display: block;
}

#section-sref {
  padding-top: 6px;
}