.series-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.15rem 0 0.35rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.07em;
}

.series-controls label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.5rem 0.68rem;
  border: 1px solid var(--line);
  background: rgba(18, 12, 8, 0.28);
  cursor: pointer;
  user-select: none;
}

.series-controls label:hover,
.series-controls label:has(input:focus-visible) {
  border-color: var(--gold);
}

.series-controls label:has(input:focus-visible) {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.series-controls input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  cursor: pointer;
}

.series-controls input:focus-visible {
  outline: none;
}

.series-toggle-site input { accent-color: var(--gold); }
.series-toggle-game input { accent-color: var(--red); }
.series-toggle-merch input { accent-color: var(--teal); }

.legend-swatch {
  width: 1.45rem;
  height: 0.22rem;
  border-radius: 99px;
}

.legend-site { background: var(--gold); }
.legend-game { background: var(--red); }
.legend-merch { background: var(--teal); }

.series-controls input:not(:checked) + .legend-swatch {
  opacity: 0.2;
}

@media (max-width: 640px) {
  .series-controls {
    gap: 0.45rem;
  }

  .series-controls label {
    flex: 1 1 auto;
    justify-content: center;
    padding-inline: 0.42rem;
    font-size: 0.72rem;
  }

  .series-controls .legend-swatch {
    display: none;
  }
}