.renderer-proof {
  --renderer-panel: rgba(16, 18, 22, 0.86);
  width: min(calc(100% - var(--page-gutter) - var(--page-gutter)), 100rem);
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.renderer-proof[data-renderer-surface="play"] {
  padding-top: var(--page-intro-space);
  padding-bottom: clamp(1rem, 3vw, 2rem);
}

.renderer-proof[data-renderer-surface="embedded"] {
  width: 100%;
}

.renderer-intro {
  max-width: 48rem;
}

.renderer-intro h1 {
  max-width: 13ch;
  font-size: clamp(2.6rem, 7vw, 5.25rem);
}

.renderer-intro > p:last-child {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.renderer-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--renderer-panel);
}

.renderer-controls label {
  min-width: min(100%, 12rem);
  flex: 1 1 12rem;
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.renderer-controls select {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 2.25rem 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: #171a20;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
}

.renderer-controls select:focus-visible,
.renderer-canvas:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.renderer-status {
  min-height: 1.5em;
  margin: -0.75rem 0 0;
  color: var(--muted);
}

.renderer-proof[data-renderer-surface="play"]:not([aria-busy="true"]):not([data-renderer-error="true"]) .renderer-status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.renderer-proof[data-renderer-error="true"] .renderer-status {
  color: #f1c4bd;
}

.renderer-canvas {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #090b0f;
  scrollbar-gutter: stable;
  -webkit-overflow-scrolling: touch;
}

.renderer-canvas .fretboard-svg {
  width: 100%;
  height: auto;
  display: block;
}

.fretboard-note-marker-root {
  fill: var(--color-theory-root-note);
  stroke: var(--color-theory-root-outline);
}

.fretboard-note-marker-scale {
  fill: var(--color-theory-scale-tone);
  stroke: var(--color-theory-scale-outline);
}

.fretboard-note-marker-chord {
  fill: var(--color-theory-chord-tone);
  stroke: var(--color-theory-chord-outline);
}

.fretboard-note-label-root,
.fretboard-note-label-chord {
  fill: var(--color-theory-accent-label);
}

.fretboard-note-label-scale {
  fill: var(--color-theory-scale-label);
}

.renderer-summary {
  display: grid;
  grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1.3fr);
  gap: 1.5rem 3rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--renderer-panel);
}

.renderer-summary-eyebrow {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.renderer-summary h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.025em;
}

.renderer-summary dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
}

.renderer-summary dl div {
  min-width: 0;
}

.renderer-summary dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.renderer-summary dd {
  margin: 0.25rem 0 0;
  overflow-wrap: anywhere;
  font-weight: 650;
}

.renderer-semantic-detail {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 60rem) {
  .renderer-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 40rem) {
  .renderer-controls {
    display: grid;
    grid-template-columns: 1fr;
  }

  .renderer-controls label {
    width: 100%;
  }

  .renderer-canvas .fretboard-svg {
    width: var(--renderer-phone-min-width);
    max-width: none;
  }

  .renderer-summary dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 22rem) {
  .renderer-summary dl {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .renderer-canvas {
    scroll-behavior: auto;
  }
}