.cascading-am-page {
  --accent: #c084fc;
  --accent-soft: color-mix(in oklab, #c084fc 55%, transparent);
  --accent-glow: color-mix(in oklab, #c084fc 20%, transparent);
  --cascading-am-root: #67e8f9;
  --cascading-am-mid: #c084fc;
  --cascading-am-carrier: #f472b6;
  --cascading-am-conn: #a78bfa;
  --cascading-am-output: #ffe4f6;
  --cascading-am-warning: #fbbf8a;
}

.cascading-am-shell {
  grid-template-columns: minmax(0, 1fr) clamp(350px, 27vw, 410px);
}

.cascading-am-stage .stage-wrap {
  background:
    repeating-linear-gradient(
      118deg,
      transparent 0,
      transparent 43px,
      color-mix(in oklab, var(--cascading-am-mid) 3.5%, transparent) 44px,
      transparent 45px
    ),
    linear-gradient(color-mix(in oklab, var(--cascading-am-root) 2.5%, transparent) 1px, transparent 1px),
    radial-gradient(circle at 68% 30%, color-mix(in oklab, var(--cascading-am-carrier) 8%, transparent), transparent 42%),
    var(--bg-deep);
  background-size: auto, 52px 52px, auto, auto;
}

.cascading-am-page #stage {
  cursor: default;
}

.cascading-am-heading {
  position: absolute;
  z-index: 2;
  top: clamp(38px, 7vh, 72px);
  left: clamp(20px, 4vw, 58px);
  display: grid;
  pointer-events: none;
  gap: 5px;
}

.cascading-am-heading p {
  margin: 0;
  color: var(--cascading-am-root);
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cascading-am-heading h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(25px, 4vw, 52px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1;
}

/* Preserve the PM sibling’s violet chain geometry for the AM variant. */

.cascading-am-signal-graph {
  position: absolute;
  z-index: 4;
  right: clamp(12px, 2vw, 28px);
  bottom: clamp(16px, 3%, 28px);
  left: clamp(12px, 2vw, 28px);
  height: clamp(150px, 29%, 220px);
  overflow: hidden;
  border-top: 1px solid color-mix(in oklab, var(--cascading-am-conn) 34%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--cascading-am-output) 13%, transparent);
  background:
    linear-gradient(120deg, color-mix(in oklab, var(--cascading-am-mid) 4%, transparent), transparent 42%),
    color-mix(in oklab, var(--bg-deep) 88%, transparent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.24);
  pointer-events: none;
}

.cascading-am-signal-graph::before {
  position: absolute;
  z-index: 1;
  top: 7px;
  left: 10px;
  color: var(--cascading-am-root);
  content: "AMPLITUDE PATH · EACH SINE MODULATES THE NEXT OPERATOR’S GAIN";
  font-size: 7px;
  letter-spacing: 0.12em;
  opacity: 0.82;
}

.cascading-am-signal-graph svg {
  display: block;
  width: 100%;
  height: 100%;
}

.cascading-am-signal-graph .cascading-am-flow-compact {
  display: none;
}

.cascading-am-stage-node rect,
.cascading-am-index-block rect,
.cascading-am-output-node rect,
.cascading-am-junction circle {
  fill: color-mix(in oklab, var(--bg-deep) 91%, transparent);
}

.cascading-am-stage-node rect {
  stroke: var(--cascading-am-mid);
  stroke-width: 1.45;
}

.cascading-am-stage-node.is-root rect {
  stroke: var(--cascading-am-root);
}

.cascading-am-stage-node.is-carrier rect {
  fill: color-mix(in oklab, var(--cascading-am-carrier) 8%, var(--bg-deep));
  stroke: var(--cascading-am-carrier);
  stroke-width: 1.8;
}

.cascading-am-stage-title,
.cascading-am-stage-value,
.cascading-am-index-label,
.cascading-am-index-value,
.cascading-am-output-label,
.cascading-am-output-value,
.cascading-am-compact-title,
.cascading-am-compact-value,
.cascading-am-compact-caption,
.cascading-am-compact-arrow,
.cascading-am-junction text {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  text-anchor: middle;
}

.cascading-am-stage-title,
.cascading-am-index-label {
  fill: var(--ink);
  font-size: 7.5px;
  font-weight: 600;
}

.cascading-am-stage-value,
.cascading-am-index-value {
  fill: var(--muted);
  font-size: 6.5px;
}

.cascading-am-amplitude-wire,
.cascading-am-control-wire {
  fill: none;
  stroke: var(--cascading-am-conn);
  stroke-width: 1.55;
}

.cascading-am-control-wire {
  stroke: var(--cascading-am-root);
  stroke-dasharray: 3 3;
  opacity: 0.56;
}

.cascading-am-index-block rect {
  stroke: var(--cascading-am-conn);
  stroke-width: 1.25;
}

.cascading-am-junction circle {
  stroke: var(--cascading-am-carrier);
  stroke-width: 1.2;
}

.cascading-am-junction text {
  fill: var(--cascading-am-carrier);
  font-size: 10px;
}

#cascadingAmArrow path {
  fill: var(--cascading-am-output);
}

.cascading-am-output-node rect {
  stroke: var(--cascading-am-output);
}

.cascading-am-output-label {
  fill: var(--cascading-am-output);
  font-size: 9px;
}

.cascading-am-output-value {
  fill: var(--muted);
  font-size: 8px;
}

.cascading-am-compact-node rect {
  fill: color-mix(in oklab, var(--bg-deep) 91%, transparent);
  stroke: var(--cascading-am-mid);
  stroke-width: 1.3;
}

.cascading-am-compact-node.is-root rect {
  stroke: var(--cascading-am-root);
}

.cascading-am-compact-node.is-carrier rect {
  stroke: var(--cascading-am-carrier);
}

.cascading-am-compact-title {
  fill: var(--ink);
  font-size: 8px;
  font-weight: 600;
}

.cascading-am-compact-value {
  fill: var(--muted);
  font-size: 6.5px;
}

.cascading-am-compact-arrow {
  fill: var(--cascading-am-conn);
  font-size: 15px;
}

.cascading-am-compact-caption {
  fill: var(--faint);
  font-size: 6px;
  letter-spacing: 0.04em;
  text-anchor: start;
}

.cascading-am-panel {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--cascading-am-mid) 4%, transparent), transparent 270px),
    var(--panel);
}

.cascading-am-presets {
  --accent: #67e8f9;
  --accent-soft: color-mix(in oklab, #67e8f9 55%, transparent);
  --accent-glow: color-mix(in oklab, #67e8f9 18%, transparent);
}

.cascading-am-structure {
  --accent: #c084fc;
  --accent-soft: color-mix(in oklab, #c084fc 55%, transparent);
  --accent-glow: color-mix(in oklab, #c084fc 20%, transparent);
}

.cascading-am-preset-grid {
  display: grid;
  padding: 3px;
  border: 1px solid var(--line-strong);
  background: var(--bg-deep);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px;
}

.cascading-am-preset-grid button {
  min-height: 42px;
  padding: 7px 8px;
  border: 1px solid transparent;
  cursor: pointer;
  color: var(--muted);
  background: transparent;
  font-size: 9px;
  letter-spacing: 0.035em;
}

.cascading-am-preset-grid button:hover,
.cascading-am-preset-grid button:focus-visible {
  border-color: var(--line-strong);
  color: var(--ink);
}

.cascading-am-preset-grid button[aria-pressed="true"] {
  border-color: var(--accent-soft);
  color: var(--accent);
  background: var(--accent-glow);
}

.cascading-am-preset-description {
  min-height: 2.9em;
  margin: 10px 0 3px;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.5;
}

.cascading-am-control-note {
  display: block;
  margin: -8px 0 12px;
  color: var(--faint);
  font-size: 7px;
  letter-spacing: 0.055em;
  line-height: 1.45;
  text-transform: uppercase;
}

.cascading-am-taper-hint {
  margin: -8px 0 14px;
  color: var(--faint);
  font-size: 7px;
  letter-spacing: 0.055em;
}

.cascading-am-taper-hint b {
  color: var(--cascading-am-root);
  font-weight: 500;
}

.cascading-am-ledger {
  margin-top: 16px;
}

.cascading-am-ledger > span {
  grid-template-columns: 68px minmax(0, 1fr);
}

.cascading-am-ledger code {
  color: color-mix(in oklab, var(--ink) 86%, var(--cascading-am-mid));
  font-variant-numeric: tabular-nums;
}

.cascading-am-safety-note {
  margin: -4px 0 11px;
  padding: 10px 11px;
  border-left: 1px solid var(--cascading-am-warning);
  color: var(--muted);
  background: color-mix(in oklab, var(--cascading-am-warning) 4%, transparent);
  font-size: 8px;
  line-height: 1.55;
}

.cascading-am-page .audio-error {
  margin: 11px 0 4px;
  color: #ffb2a8;
  font-size: 9px;
  line-height: 1.5;
}

.cascading-am-audio-glyph {
  color: var(--cascading-am-root);
  font-size: 19px;
}

@media (max-width: 960px) {
  .cascading-am-shell {
    grid-template-columns: 1fr;
    grid-template-rows: clamp(360px, 50dvh, 460px) minmax(0, 1fr);
  }

  .cascading-am-heading {
    top: 28px;
  }

  .cascading-am-heading h1 {
    font-size: clamp(24px, 6vw, 40px);
  }
}

@media (max-width: 650px) {
  .cascading-am-heading {
    top: 20px;
    left: 16px;
  }

  .cascading-am-heading p,
  .cascading-am-stage .stage-meta {
    display: none;
  }

  .cascading-am-signal-graph {
    right: 5px;
    bottom: 8px;
    left: 5px;
    height: clamp(0px, calc(100% - 274px), 132px);
  }

  .cascading-am-signal-graph::before {
    top: 4px;
    font-size: 6px;
  }

  .cascading-am-signal-graph .cascading-am-flow-detailed {
    display: none;
  }

  .cascading-am-signal-graph .cascading-am-flow-compact {
    display: block;
  }
}

@media (max-width: 390px) {
  .cascading-am-preset-grid {
    grid-template-columns: 1fr;
  }

  .cascading-am-preset-grid button {
    min-height: 38px;
  }
}