.masking-demo {
  margin: 1.5rem 0 1.75rem;
  padding: 1.15rem;
  border: 1px solid rgba(93, 90, 163, 0.2);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(93, 90, 163, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(247, 241, 231, 0.94));
  box-shadow: var(--shadow);
}

.masking-print-static {
  display: none;
}

.masking-demo__header,
.masking-demo__toolbar,
.masking-demo__panel-title,
.masking-demo__row-button,
.masking-demo__step-button,
.masking-demo__step-label,
.masking-demo__mask-chip,
.masking-demo__matrix th,
.masking-demo__legend-item {
  font-family: "IBM Plex Sans", sans-serif;
}

.masking-demo__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.9rem;
  align-items: start;
}

.masking-demo__eyebrow {
  margin: 0 0 0.15rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--optional);
}

.masking-demo__title {
  margin: 0;
  font-size: 1.32rem;
  font-family: "Fraunces", "Source Serif 4", serif;
  font-weight: 700;
  line-height: 1.15;
}

.masking-demo__step-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.masking-demo__step-label {
  min-width: 7.2rem;
  margin: 0;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.masking-demo__step-button,
.masking-demo__row-button {
  border: 1px solid rgba(31, 38, 48, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease,
    box-shadow 140ms ease;
}

.masking-demo__step-button {
  min-width: 4.5rem;
  padding: 0.65rem 0.95rem;
}

.masking-demo__toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.masking-demo__row-button {
  padding: 0.55rem 0.85rem;
}

.masking-demo__row-button[aria-pressed="true"] {
  border-color: rgba(13, 107, 99, 0.34);
  background: rgba(13, 107, 99, 0.12);
  color: var(--accent-strong);
  box-shadow: 0 10px 24px rgba(13, 107, 99, 0.12);
}

.masking-demo__step-button:hover,
.masking-demo__step-button:focus-visible,
.masking-demo__row-button:hover,
.masking-demo__row-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(13, 107, 99, 0.32);
  background: rgba(13, 107, 99, 0.08);
  outline: none;
}

.masking-demo__step-button:disabled {
  cursor: default;
  opacity: 0.42;
  transform: none;
  box-shadow: none;
}

.masking-demo__status {
  margin: 1rem 0 0;
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius-small);
  border: 1px solid rgba(13, 107, 99, 0.16);
  background: rgba(13, 107, 99, 0.06);
  color: var(--ink);
}

.masking-demo__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.35fr) minmax(15rem, 0.85fr);
  gap: 1rem;
  align-items: start;
  margin-top: 1rem;
}

.masking-demo__sidebar,
.masking-demo__legend {
  display: grid;
  gap: 0.85rem;
}

.masking-demo__panel {
  padding: 0.95rem 1rem;
  border-radius: var(--radius-small);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
}

.masking-demo__panel-title {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.masking-demo__mask {
  display: grid;
  gap: 0.55rem;
}

.masking-demo__mask-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  background: rgba(17, 24, 39, 0.04);
  font-size: 0.9rem;
  font-weight: 600;
}

.masking-demo__mask-chip.is-padding-chip {
  border-color: rgba(93, 90, 163, 0.38);
  background: rgba(93, 90, 163, 0.14);
  color: #4f4a89;
}

.masking-demo__result {
  margin: 0;
  color: var(--ink);
  line-height: 1.55;
}

.masking-demo__matrix-shell {
  padding: 0.85rem;
  border-radius: var(--radius-small);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
}

.masking-demo__matrix {
  margin: 0;
  table-layout: fixed;
  background: transparent;
}

.masking-demo__matrix thead th {
  border-bottom: 1px solid var(--line);
  background: rgba(13, 107, 99, 0.09);
  color: var(--accent-strong);
}

.masking-demo__matrix th,
.masking-demo__matrix td {
  text-align: center;
  vertical-align: middle;
}

.masking-demo__matrix td {
  position: relative;
  font-family: "IBM Plex Mono", monospace;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  transition: transform 220ms ease, opacity 220ms ease, background 220ms ease,
    color 220ms ease, box-shadow 220ms ease;
}

.masking-demo__matrix [data-masking-col-label].is-padding-col {
  background: rgba(93, 90, 163, 0.16);
  color: #4f4a89;
}

.masking-demo__matrix [data-masking-row-label].is-current {
  background: rgba(13, 107, 99, 0.14);
  color: var(--accent-strong);
}

.masking-demo__matrix [data-masking-row-label].is-padding-row {
  background: rgba(93, 90, 163, 0.18);
  color: #4f4a89;
}

.masking-demo__matrix tr.is-current-row td {
  background: rgba(13, 107, 99, 0.05);
}

.masking-demo__matrix td.is-current-row {
  transform: translateY(-2px);
  box-shadow: inset 0 0 0 1px rgba(13, 107, 99, 0.12);
}

.masking-demo__matrix td.is-masked-causal {
  background: rgba(191, 90, 54, 0.14);
  color: #934128;
  opacity: 0.42;
  text-decoration: line-through;
}

.masking-demo__matrix td.is-masked-padding,
.masking-demo__matrix tr.is-padding-row td {
  background: rgba(93, 90, 163, 0.16);
  color: #4f4a89;
  opacity: 0.38;
  text-decoration: line-through;
}

.masking-demo__matrix td.is-row-masked {
  background: rgba(93, 90, 163, 0.16);
  color: #4f4a89;
  opacity: 0.24;
  text-decoration: line-through;
}

.masking-demo__matrix td.is-allowed {
  background: rgba(13, 107, 99, 0.16);
  color: var(--accent-strong);
  opacity: 1;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px rgba(13, 107, 99, 0.24);
}

.masking-demo__legend-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.8rem 0.9rem;
  border-radius: var(--radius-small);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
  color: var(--ink);
}

.masking-demo__swatch {
  width: 1rem;
  height: 1rem;
  border-radius: 0.3rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
}

.masking-demo__swatch--active {
  background: rgba(13, 107, 99, 0.12);
}

.masking-demo__swatch--allowed {
  background: rgba(13, 107, 99, 0.22);
}

.masking-demo__swatch--causal {
  background: rgba(191, 90, 54, 0.18);
}

.masking-demo__swatch--padding {
  background: rgba(93, 90, 163, 0.18);
}

.masking-demo figcaption {
  margin-top: 0.95rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}