.recursive-fm-page {
  --accent: #b59cff;
  --accent-soft: color-mix(in oklab, #b59cff 55%, transparent);
  --accent-glow: color-mix(in oklab, #b59cff 22%, transparent);
  --recursive-fm-carrier: #5fe8c4;
  --recursive-fm-entry: #7db4ff;
  --recursive-fm-turn: #b59cff;
  --recursive-fm-output: #fff3d6;
  --recursive-fm-warning: #ffb86b;
}

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

.recursive-fm-stage .stage-wrap {
  background:
    linear-gradient(color-mix(in oklab, var(--accent) 2.5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--recursive-fm-carrier) 2%, transparent) 1px, transparent 1px),
    radial-gradient(ellipse at 52% 43%, color-mix(in oklab, var(--accent) 8%, transparent), transparent 49%),
    var(--bg-deep);
  background-size: 44px 44px, 44px 44px, auto, auto;
}

.recursive-fm-page #stage {
  cursor: default;
}

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

.recursive-fm-heading p,
.recursive-fm-heading span {
  margin: 0;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.recursive-fm-heading p {
  color: var(--accent);
}

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

.recursive-fm-heading span {
  margin-top: 3px;
  color: var(--faint);
  letter-spacing: 0.11em;
}

.recursive-fm-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(--recursive-fm-entry) 24%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--recursive-fm-output) 12%, transparent);
  background: linear-gradient(
    90deg,
    color-mix(in oklab, var(--bg-deep) 94%, transparent),
    color-mix(in oklab, var(--bg-deep) 78%, transparent),
    color-mix(in oklab, var(--bg-deep) 94%, transparent)
  );
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  pointer-events: none;
}

.recursive-fm-signal-graph::before {
  position: absolute;
  z-index: 1;
  top: 7px;
  left: 10px;
  color: var(--recursive-fm-entry);
  content: "ACTUAL SIGNAL PATH · SINE × MODULATION + BIAS → NEXT OSCILLATOR FREQUENCY";
  font-size: 7px;
  letter-spacing: 0.12em;
  opacity: 0.78;
}

.recursive-fm-signal-graph svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.recursive-fm-signal-graph .recursive-fm-flow-compact {
  display: none;
}

.recursive-fm-compact-node rect {
  fill: color-mix(in oklab, var(--bg-deep) 90%, transparent);
  stroke: var(--recursive-fm-turn);
  stroke-width: 1.3;
}

.recursive-fm-compact-node.is-carrier rect {
  stroke: var(--recursive-fm-carrier);
}

.recursive-fm-compact-node.is-entry rect {
  stroke: var(--recursive-fm-entry);
}

.recursive-fm-compact-node.is-output rect {
  fill: color-mix(in oklab, var(--recursive-fm-output) 8%, var(--bg-deep));
  stroke: var(--recursive-fm-output);
}

.recursive-fm-compact-title,
.recursive-fm-compact-value,
.recursive-fm-compact-caption,
.recursive-fm-compact-arrow {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  text-anchor: middle;
}

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

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

.recursive-fm-compact-arrow {
  fill: var(--recursive-fm-entry);
  font-size: 15px;
}

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

.recursive-fm-signal-wire,
.recursive-fm-bias-wire {
  fill: none;
  stroke: var(--recursive-fm-entry);
  stroke-width: 1.6;
  opacity: 0.92;
}

.recursive-fm-bias-wire {
  stroke: var(--recursive-fm-carrier);
  stroke-dasharray: 3 3;
  opacity: 0.72;
}

#recursiveFmArrow path {
  fill: var(--recursive-fm-entry);
}

.recursive-fm-block-title,
.recursive-fm-block-value,
.recursive-fm-operator-title,
.recursive-fm-operator-value,
.recursive-fm-bus-label,
.recursive-fm-output-node text {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  text-anchor: middle;
}

.recursive-fm-modulator rect,
.recursive-fm-bias rect {
  fill: color-mix(in oklab, var(--bg-deep) 92%, transparent);
  stroke-width: 1.3;
}

.recursive-fm-modulator rect {
  stroke: var(--recursive-fm-entry);
}

.recursive-fm-bias rect {
  stroke: var(--recursive-fm-carrier);
}

.recursive-fm-block-title {
  fill: var(--ink);
  font-size: 8px;
  font-weight: 600;
}

.recursive-fm-block-value {
  fill: var(--muted);
  font-size: 8px;
}

.recursive-fm-input-junction circle {
  fill: var(--bg-deep);
  stroke: var(--recursive-fm-entry);
  stroke-width: 2;
}

.recursive-fm-input-junction text {
  fill: var(--recursive-fm-entry);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 700;
  text-anchor: middle;
}

.recursive-fm-operator rect {
  fill: color-mix(in oklab, var(--bg-deep) 90%, transparent);
  stroke: var(--recursive-fm-turn);
  stroke-width: 1.5;
}

.recursive-fm-operator.is-carrier rect {
  stroke: var(--recursive-fm-carrier);
}

.recursive-fm-operator.is-audible rect {
  fill: color-mix(in oklab, var(--recursive-fm-output) 8%, var(--bg-deep));
  stroke: var(--recursive-fm-output);
  stroke-width: 1.8;
}

.recursive-fm-operator-title {
  fill: var(--ink);
  font-size: 10px;
  font-weight: 600;
}

.recursive-fm-operator-value {
  fill: var(--muted);
  font-size: 9px;
}

.recursive-fm-tap {
  fill: none;
  stroke: var(--faint);
  stroke-dasharray: 3 4;
  stroke-width: 1;
  opacity: 0.2;
}

.recursive-fm-tap.is-open {
  stroke: var(--recursive-fm-output);
  stroke-dasharray: none;
  stroke-width: 1.8;
  opacity: 1;
}

.recursive-fm-tap-switch {
  fill: var(--bg-deep);
  stroke: var(--faint);
  opacity: 0.35;
}

.recursive-fm-tap-switch.is-open {
  fill: var(--recursive-fm-output);
  stroke: var(--recursive-fm-output);
  opacity: 1;
}

.recursive-fm-output-bus,
.recursive-fm-audio-edge {
  fill: none;
  stroke: var(--recursive-fm-output);
  stroke-width: 1.25;
  opacity: 0.72;
}

.recursive-fm-bus-label {
  fill: var(--faint);
  font-size: 9px;
  text-anchor: start;
}

.recursive-fm-output-node rect {
  fill: color-mix(in oklab, var(--recursive-fm-output) 8%, var(--bg-deep));
  stroke: var(--recursive-fm-output);
}

.recursive-fm-output-node text {
  fill: var(--recursive-fm-output);
  font-size: 10px;
}

.recursive-fm-output-node .recursive-fm-output-value {
  fill: var(--muted);
  font-size: 9px;
}

.recursive-fm-scope-labels {
  position: absolute;
  z-index: 2;
  right: clamp(18px, 3vw, 40px);
  bottom: 20px;
  left: clamp(20px, 4vw, 58px);
  display: flex;
  color: var(--faint);
  justify-content: space-between;
  font-size: 7px;
  letter-spacing: 0.15em;
  pointer-events: none;
}

.recursive-fm-panel {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--accent) 3%, transparent), transparent 270px),
    var(--panel);
}

.recursive-fm-presets {
  --accent: #5fe8c4;
  --accent-soft: color-mix(in oklab, #5fe8c4 55%, transparent);
  --accent-glow: color-mix(in oklab, #5fe8c4 20%, transparent);
}

.recursive-fm-structure {
  --accent: #b59cff;
  --accent-soft: color-mix(in oklab, #b59cff 55%, transparent);
  --accent-glow: color-mix(in oklab, #b59cff 20%, transparent);
}

.recursive-fm-performance {
  --accent: #ffb86b;
  --accent-soft: color-mix(in oklab, #ffb86b 55%, transparent);
  --accent-glow: color-mix(in oklab, #ffb86b 18%, transparent);
}

.recursive-fm-midi-monitor {
  display: grid;
  padding: 9px 10px;
  margin-bottom: 13px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg-deep) 86%, transparent);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.recursive-fm-midi-monitor > span {
  display: grid;
  min-width: 0;
  color: var(--muted);
  font-size: 8px;
  gap: 3px;
}

.recursive-fm-midi-monitor b {
  color: var(--faint);
  font-size: 6px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.recursive-fm-midi-monitor output {
  overflow: hidden;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recursive-fm-expression-row {
  grid-column: 1 / -1;
  grid-template-columns: 54px minmax(0, 1fr) 34px !important;
  align-items: center;
}

.recursive-fm-expression-row i {
  position: relative;
  height: 3px;
  overflow: hidden;
  background: var(--line-strong);
}

.recursive-fm-expression-row i::after {
  position: absolute;
  inset: 0;
  width: calc(var(--expression, 1) * 100%);
  content: "";
  background: var(--recursive-fm-carrier);
}

.recursive-fm-midi-activity {
  color: var(--faint) !important;
  grid-column: 1 / -1;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.recursive-fm-midi-activity.is-active {
  color: var(--recursive-fm-carrier) !important;
}

.recursive-fm-adsr-preview {
  display: grid;
  margin: 2px 0 12px;
  grid-template-columns: repeat(4, 1fr);
}

.recursive-fm-adsr-preview svg {
  width: 100%;
  height: 74px;
  grid-column: 1 / -1;
}

.recursive-fm-adsr-preview path:not(.recursive-fm-adsr-grid) {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  filter: drop-shadow(0 0 5px var(--accent-glow));
}

.recursive-fm-adsr-preview .recursive-fm-adsr-grid {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1;
}

.recursive-fm-adsr-preview > span {
  margin-top: -5px;
  color: var(--faint);
  font-size: 6px;
  letter-spacing: 0.12em;
  text-align: center;
}

.recursive-fm-glide-row {
  margin: 2px 0 12px;
}

.recursive-fm-glide-row label {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  color: var(--ink);
  font-size: 9px;
  gap: 10px;
}

.recursive-fm-glide-row select {
  min-width: 106px;
  height: 30px;
  padding: 0 24px 0 8px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--ink);
  background: var(--bg-deep);
  font: inherit;
  font-size: 8px;
  text-transform: uppercase;
}

.recursive-fm-midi-map-note {
  margin-top: 3px;
  line-height: 1.65;
}

.recursive-fm-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;
}

.recursive-fm-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;
}

.recursive-fm-preset-grid button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

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

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

.recursive-fm-control-note {
  display: block;
  margin: -8px 0 12px;
  color: var(--faint);
  font-size: 7px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.recursive-fm-ledger {
  margin-top: 16px;
}

.recursive-fm-ledger > span {
  grid-template-columns: 58px minmax(0, 1fr);
}

.recursive-fm-ledger code {
  color: color-mix(in oklab, var(--ink) 88%, var(--accent));
  font-variant-numeric: tabular-nums;
}

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

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

.recursive-fm-audio-glyph {
  color: var(--accent);
  font-size: 18px;
}

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

  .recursive-fm-heading {
    top: 28px;
  }

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

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

  .recursive-fm-heading p {
    display: none;
  }

  .recursive-fm-stage .stage-meta {
    display: none;
  }

  .recursive-fm-signal-graph {
    right: 5px;
    bottom: 8px;
    left: 5px;
    /* The mobile analyser ends at y=265; retain a clear pixel at 360px. */
    height: clamp(0px, calc(100% - 274px), 132px);
  }

  .recursive-fm-signal-graph::before {
    top: 4px;
    font-size: 6px;
  }

  .recursive-fm-signal-graph .recursive-fm-flow-detailed {
    display: none;
  }

  .recursive-fm-signal-graph .recursive-fm-flow-compact {
    display: block;
  }
}

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

  .recursive-fm-preset-grid button {
    min-height: 38px;
  }
}