:root {
  color-scheme: dark;
  --basalt: #15100d;
  --basalt-deep: #0d0b09;
  --surface: #211914;
  --surface-raised: #2b2018;
  --surface-control: #17120f;
  /* Both boundary tokens retain at least 3:1 against every adjacent surface. */
  --line: #9b7655;
  --line-soft: #89684a;
  --paper: #f4ead8;
  --sand: #e4d2b3;
  --muted: #c6b291;
  --rust: #d67843;
  --rust-deep: #74371f;
  --ochre: #efbd62;
  --cyan: #72d6e8;
  --green: #a8d780;
  --danger: #ff9b89;
  --shadow: 0 1.25rem 3.5rem #00000066;
  --inset: inset 0 1px #ffffff12, inset 0 -1rem 2rem #00000024;
  --font: "Trebuchet MS", Tahoma, system-ui, sans-serif;
  --display: Georgia, "Times New Roman", serif;
  --mono: "Courier New", ui-monospace, monospace;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --radius: 0.35rem;
  --control-size: 2.75rem;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-width: 20rem;
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  min-height: 100vh;
  margin: 0;
  color: var(--sand);
  background:
    radial-gradient(circle at 78% -8%, #d6784333, transparent 34rem),
    radial-gradient(circle at 8% 18%, #72d6e812, transparent 28rem),
    linear-gradient(180deg, #101514 0, var(--basalt) 29rem, var(--basalt-deep) 100%);
  font-family: var(--font);
  line-height: 1.5;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(#ffffff08 1px, transparent 1px),
    linear-gradient(90deg, #ffffff08 1px, transparent 1px);
  background-size: 4rem 4rem;
  mask-image: linear-gradient(to bottom, black, transparent 68%);
}

button,
input,
select {
  font: inherit;
}

button,
select,
input[type="checkbox"],
input[type="range"] {
  cursor: pointer;
}

button:disabled,
select:disabled,
input:disabled {
  cursor: not-allowed;
}

a {
  color: var(--paper);
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

::selection {
  color: var(--basalt-deep);
  background: var(--ochre);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-3);
  left: var(--space-3);
  min-height: var(--control-size);
  padding: 0.65rem var(--space-4);
  color: var(--basalt-deep);
  background: var(--paper);
  font-weight: 800;
  transform: translateY(calc(-100% - 2rem));
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.site-header,
.review-shell,
.site-footer {
  width: min(94rem, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: clamp(5.5rem, 9vw, 8rem) var(--space-6);
}

.title-block {
  max-width: 52rem;
}

.eyebrow,
.section-kicker,
.control-label {
  margin: 0;
  color: var(--ochre);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-block: var(--space-2) var(--space-3);
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(2.5rem, 7vw, 5.7rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.035em;
}

h2 {
  margin: var(--space-1) 0 0;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.1;
}

h3 {
  margin: 0;
  color: var(--paper);
  font-size: 0.95rem;
}

.lede {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.page-links {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.page-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-size);
  padding: 0.65rem var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #211914d9;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}

/* The shared MixMash bar injects its own visual treatment. Keep its compact
   chrome, but raise every control to the same 44px target used by this page. */
body .mixnav a,
body .mixnav button {
  min-width: var(--control-size);
  min-height: var(--control-size);
  border-color: var(--line);
  justify-content: center;
}

body .mixnav a:hover,
body .mixnav button:hover {
  border-color: var(--cyan);
}

.review-shell {
  display: grid;
  gap: var(--space-4);
}

.review-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(19rem, 22rem);
  gap: var(--space-4);
  align-items: start;
}

body[data-review-scope="artist-test"] .review-workspace {
  grid-template-columns: 1fr;
}

.panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #2b2018f2, #1a1410f7);
  box-shadow: var(--shadow), var(--inset);
}

.panel-heading {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  border-bottom: 1px solid var(--line-soft);
}

.panel-note {
  max-width: 24rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.stage-heading {
  align-items: flex-end;
}

.stage-statuses {
  display: grid;
  min-width: min(100%, 23rem);
  gap: var(--space-2);
}

.status-line {
  display: block;
  min-height: 2rem;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--line-soft);
  border-left-width: 0.25rem;
  color: var(--muted);
  background: var(--surface-control);
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.35;
}

.status-line[data-state="loading"] {
  border-left-color: var(--ochre);
}

.status-line[data-state="ready"] {
  border-left-color: var(--green);
  color: var(--green);
}

.status-line[data-state="blocked"],
.status-line[data-state="error"] {
  border-left-color: var(--danger);
  color: var(--danger);
}

.status-line[data-state="playing"] {
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.scene-stage {
  margin: 0;
  padding: var(--space-4);
}

.canvas-frame {
  width: 100%;
  /* The frame's two 1px borders sit outside the renderer's exact 940px view. */
  max-width: calc(940px + 2px);
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(45deg, #17120f 25%, transparent 25%, transparent 75%, #17120f 75%),
    linear-gradient(45deg, #17120f 25%, #100d0b 25%, #100d0b 75%, #17120f 75%);
  background-position: 0 0, 0.5rem 0.5rem;
  background-size: 1rem 1rem;
  box-shadow: inset 0 0 0 1px #ffffff0a, inset 0 0 4rem #00000066;
}

#goldenCanvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 940 / 620;
  image-rendering: pixelated;
}

#canvasDescription {
  width: 100%;
  max-width: 940px;
  margin: var(--space-3) auto 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.playback-bar {
  display: grid;
  grid-template-columns: auto minmax(14rem, 1fr);
  gap: var(--space-5);
  align-items: end;
  padding: var(--space-4);
  border-top: 1px solid var(--line-soft);
  background: #17120fcc;
}

.playback-actions {
  display: grid;
  gap: var(--space-2);
}

.button {
  min-height: var(--control-size);
  padding: 0.65rem var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  background: linear-gradient(180deg, #4b3524, #2d2118);
  box-shadow: inset 0 1px #ffffff14, inset 0 -0.4rem 0.9rem #00000026;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.button-primary {
  border-color: var(--rust);
  background: linear-gradient(180deg, #8b4327, var(--rust-deep));
}

.button[aria-pressed="true"] {
  border-color: var(--cyan);
  background: linear-gradient(180deg, #2f6d76, #204850);
}

.button:disabled {
  border-color: var(--line-soft);
  color: #988a76;
  background: #241d18;
  box-shadow: none;
  opacity: 0.8;
}

.scrubber-control {
  display: grid;
  grid-template-columns: auto minmax(8rem, 1fr) 3.5rem;
  gap: var(--space-3);
  align-items: center;
}

.scrubber-control label,
.select-control > span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
}

#timeScrubber {
  width: 100%;
  min-height: var(--control-size);
  margin: 0;
  accent-color: var(--rust);
}

#timeReadout {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.sequence-panel {
  position: sticky;
  top: var(--space-4);
}

.sequence-panel .panel-heading {
  display: grid;
}

.beat-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: var(--space-2) var(--space-4);
  list-style: none;
}

.beat-list li {
  position: relative;
}

.beat-list li:not(:last-child)::after {
  position: absolute;
  z-index: 0;
  top: 2.75rem;
  bottom: -0.4rem;
  left: 1.15rem;
  width: 1px;
  content: "";
  background: var(--line-soft);
}

.beat-button {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  width: 100%;
  min-height: 4.6rem;
  padding: var(--space-3) var(--space-2);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--sand);
  background: transparent;
  text-align: left;
}

.beat-index {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  background: var(--surface-control);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.beat-copy {
  display: grid;
  gap: 0.15rem;
}

.beat-copy strong {
  color: var(--paper);
  font-size: 0.88rem;
}

.beat-copy small {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.4;
}

.beat-button[aria-current="step"] {
  border-color: var(--ochre);
  background: linear-gradient(90deg, #efbd6219, transparent);
  box-shadow: inset 0.25rem 0 var(--ochre);
}

.beat-button[aria-current="step"]::after {
  position: absolute;
  top: 0.35rem;
  right: 0.45rem;
  content: "Current";
  color: var(--ochre);
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.beat-button[aria-current="step"] .beat-index {
  border-color: var(--ochre);
  color: var(--basalt-deep);
  background: var(--ochre);
}

.sequence-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--line-soft);
}

.operator-grid {
  display: grid;
  grid-template-columns: minmax(21rem, 1.08fr) minmax(20rem, 0.92fr) minmax(21rem, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.control-group,
.review-checklist {
  min-width: 0;
  margin: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--line-soft);
  background: #17120f99;
}

.control-group legend,
.review-checklist legend {
  padding-inline: var(--space-2);
  color: var(--ochre);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.select-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.select-control {
  display: grid;
  gap: var(--space-2);
  min-width: 0;
}

select {
  width: 100%;
  min-height: var(--control-size);
  padding: 0.55rem 2.2rem 0.55rem var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  background: var(--surface-control);
}

.overlay-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
}

.check-control,
.review-checklist label {
  display: flex;
  min-width: 0;
  min-height: var(--control-size);
  align-items: flex-start;
  gap: var(--space-3);
  padding: 0.65rem var(--space-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface-control);
}

.check-control input,
.review-checklist input {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  margin: 0.15rem 0 0;
  accent-color: var(--rust);
}

.check-control span,
.review-checklist label span {
  display: grid;
  min-width: 0;
  gap: 0.1rem;
}

.check-control strong,
.review-checklist label strong {
  color: var(--paper);
  font-size: 0.8rem;
}

.check-control small,
.review-checklist label small {
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.35;
}

.overlay-wide {
  grid-column: 1 / -1;
}

.telemetry-card {
  margin: var(--space-4);
  border: 1px solid var(--line-soft);
  background: var(--surface-control);
}

.telemetry-card + .telemetry-card {
  margin-top: calc(-1 * var(--space-2));
}

.telemetry-card-warning {
  border-left: 0.25rem solid var(--ochre);
}

.telemetry-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--control-size);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line-soft);
}

.telemetry-tag,
.gate-badge {
  flex: 0 0 auto;
  padding: 0.2rem var(--space-2);
  border: 1px solid var(--line);
  color: var(--muted);
  background: #100d0b;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.telemetry-body {
  min-height: 4rem;
  padding: var(--space-3);
  color: var(--sand);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.telemetry-body dl {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-2) var(--space-3);
  margin: 0;
}

.telemetry-body dt {
  color: var(--muted);
}

.telemetry-body dd {
  margin: 0;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.empty-state {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.gate-badge[data-state="blocked"] {
  border-color: var(--danger);
  color: var(--danger);
}

.gate-badge[data-state="ready"] {
  border-color: var(--green);
  color: var(--green);
}

.review-checklist {
  display: grid;
  gap: var(--space-2);
}

#reviewHelp {
  margin: 0 0 var(--space-2);
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.review-context-status {
  margin-bottom: var(--space-2);
}

.approval-action {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4);
  padding: var(--space-4);
  border-top: 1px solid var(--line-soft);
}

.approval-reason {
  margin: 0;
  padding: var(--space-3);
  border: 1px solid var(--line-soft);
  border-left: 0.25rem solid var(--danger);
  color: var(--muted);
  background: var(--surface-control);
  font-size: 0.78rem;
  line-height: 1.5;
}

.approval-reason h3,
.approval-reason p {
  margin: 0;
}

.approval-reason h3 {
  color: var(--danger);
  font-size: 0.82rem;
}

.approval-reason p {
  margin-top: var(--space-1);
}

.approval-reason ul {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-2) 0 0;
  padding-left: 1.2rem;
}

.approval-reason strong {
  color: var(--danger);
}

.approval-reason[data-state="ready"] {
  border-left-color: var(--green);
}

.approval-reason[data-state="ready"] strong {
  color: var(--green);
}

.approval-reason[data-state="ready"] h3 {
  color: var(--green);
}

.button-approval {
  width: 100%;
}

.button-approval:not(:disabled) {
  border-color: var(--green);
  color: #10150d;
  background: var(--green);
}

.site-footer {
  padding-block: var(--space-5) 4rem;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-align: center;
}

@media (hover: hover) and (pointer: fine) {
  .page-links a:hover,
  .button:not(:disabled):hover,
  .beat-button:hover,
  .check-control:hover,
  .review-checklist label:hover {
    border-color: var(--cyan);
  }

  .beat-button:hover,
  .check-control:hover,
  .review-checklist label:hover {
    background-color: #72d6e80d;
  }
}

@media (max-width: 74rem) {
  .review-workspace {
    grid-template-columns: 1fr;
  }

  .sequence-panel {
    position: static;
  }

  .beat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
  }

  .beat-list li:not(:last-child)::after {
    display: none;
  }

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

  .approval-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 52rem) {
  .site-header,
  .stage-heading,
  .panel-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .page-links {
    justify-content: flex-start;
  }

  .stage-statuses {
    width: 100%;
  }

  .playback-bar,
  .operator-grid {
    grid-template-columns: 1fr;
  }

  .approval-panel {
    grid-column: auto;
  }

  .select-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 42.5rem) {
  .site-header,
  .review-shell,
  .site-footer {
    width: min(100% - 1rem, 94rem);
  }

  .site-header {
    display: block;
    padding-block: 5.5rem var(--space-5);
  }

  .page-links {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: var(--space-5);
  }

  .page-links a {
    justify-content: center;
  }

  .review-shell,
  .review-workspace,
  .operator-grid {
    gap: var(--space-3);
  }

  .panel-heading,
  .scene-stage,
  .playback-bar,
  .sequence-navigation {
    padding: var(--space-3);
  }

  .beat-list {
    grid-template-columns: 1fr;
    padding: var(--space-2) var(--space-3);
  }

  .beat-list li:not(:last-child)::after {
    display: block;
  }

  .scrubber-control {
    grid-template-columns: 1fr auto;
  }

  .scrubber-control label {
    grid-column: 1 / -1;
  }

  #timeScrubber {
    min-width: 0;
  }

  .overlay-grid {
    grid-template-columns: 1fr;
  }

  .overlay-wide {
    grid-column: auto;
  }

  .control-group,
  .review-checklist,
  .telemetry-card,
  .approval-action {
    margin-inline: var(--space-3);
  }

  .sequence-navigation {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .panel,
  .canvas-frame,
  .status-line,
  .telemetry-card,
  .approval-reason,
  .beat-button[aria-current="step"] {
    border-color: CanvasText;
  }

  .beat-button[aria-current="step"] {
    outline: 2px solid Highlight;
    outline-offset: -2px;
  }
}