:root {
  --stage: #f6f2e9;
  --stage-deep: #e8e1d4;
  --panel: #f4f1e9;
  --paper: #fffdf7;
  --ink: #202328;
  --muted: #656b68;
  --graphite: #282c31;
  --graphite-deep: #141719;
  --forest: #263d2b;
  --forest-deep: #15251b;
  --coral: #ff704d;
  --coral-deep: #c9432a;
  --violet: #7368ff;
  --signal: #bbff5a;
  --cyan: #62e7f2;
  --amber: #ffbc58;
  --danger: #ff4f63;
  --line: rgba(32, 35, 40, .22);
  --dark-line: rgba(255, 255, 255, .14);
  --shadow: 0 24px 70px rgba(39, 37, 31, .16), 0 4px 0 rgba(32, 35, 40, .12);
  --chamfer: 24px 7px 24px 7px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--stage);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background-color: var(--stage);
  background-image:
    radial-gradient(circle at 7% 2%, rgba(255, 255, 255, .96), transparent 31rem),
    radial-gradient(circle at 92% 18%, rgba(98, 231, 242, .1), transparent 34rem),
    radial-gradient(circle at 52% 62%, rgba(187, 255, 90, .08), transparent 38rem),
    linear-gradient(rgba(246, 242, 233, .18), rgba(246, 242, 233, .32)),
    url("../timeline/assets/graph-paper-yuppy.png");
  background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, repeat;
  background-size: auto, auto, auto, 100% 100%, 128px 128px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

[hidden] { display: none !important; }

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

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 11px 15px;
  color: #10170a;
  border-radius: 4px 12px 4px 12px;
  background: var(--signal);
  font: 900 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
  transform: translateY(-180%);
  transition: transform .18s ease;
}

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

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px clamp(14px, 2.5vw, 38px);
  color: #f4f5f2;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  background:
    radial-gradient(circle at 70% -100%, rgba(187, 255, 90, .15), transparent 48%),
    linear-gradient(135deg, #30353a, var(--graphite-deep));
  box-shadow: 0 12px 36px rgba(20, 23, 25, .24), inset 0 1px rgba(255, 255, 255, .16);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  flex: 0 0 auto;
  color: inherit;
  font: 900 clamp(34px, 4vw, 56px)/1 Arial, Helvetica, sans-serif;
  letter-spacing: -.09em;
  text-decoration: none;
}

.portrait-letter {
  width: .9em;
  height: 1.05em;
  display: inline-block;
  overflow: hidden;
  position: relative;
  border: 2px solid currentColor;
  background: var(--violet);
  transform: translateY(.1em);
}

.portrait-o { border-radius: 50%; }
.portrait-d { margin-left: .12em; border-radius: 2px 50% 50% 2px; }

.portrait-letter img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.portrait-o img { object-position: 0 50%; }
.portrait-d img { object-position: 50% 24%; }

.brand-punctuation {
  margin-left: .08em;
  color: var(--signal);
  font-size: .54em;
  letter-spacing: -.04em;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.system-state,
.header-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 12px 3px 12px 3px;
  background: rgba(8, 12, 10, .34);
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .11em;
  text-transform: uppercase;
  white-space: nowrap;
}

.system-state { color: #dbe2dc; }

.system-light {
  width: 9px;
  height: 9px;
  display: inline-block;
  flex: 0 0 auto;
  border: 1px solid #e8ffc6;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(187, 255, 90, .86);
  animation: calm-pulse 1.8s ease-in-out infinite;
}

.header-link {
  color: #f4f5f2;
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease, transform .18s ease;
}

.header-link:hover,
.header-link:focus-visible {
  color: var(--signal);
  border-color: rgba(187, 255, 90, .55);
  outline: none;
  transform: translateY(-1px);
}

main { padding: 0 clamp(8px, 1.5vw, 24px) clamp(38px, 5vw, 72px); }

.intro {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(420px, .85fr) minmax(480px, 1.15fr);
  align-items: center;
  gap: clamp(20px, 3vw, 48px);
  margin: 0 auto;
  padding: clamp(16px, 2vw, 26px) 4px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: #38502e;
  font: 900 12px/1.25 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.eyebrow-light {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(187, 255, 90, .2), 0 0 16px rgba(104, 163, 26, .55);
}

.eyebrow-light-cyan {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(98, 231, 242, .18), 0 0 16px rgba(28, 148, 158, .48);
}

.intro h1 {
  max-width: 980px;
  margin: 0;
  font: 900 clamp(44px, 5vw, 78px)/.86 Arial, Helvetica, sans-serif;
  letter-spacing: -.085em;
}

.intro h1 em {
  color: var(--coral);
  font-style: normal;
}

.intro-copy {
  max-width: 680px;
  padding-bottom: 6px;
  color: var(--muted);
  font-size: clamp(15px, 1.15vw, 18px);
  line-height: 1.42;
}

.intro-copy > p { margin: 0; }

.simulation-warning {
  margin-top: 10px !important;
  padding: 9px 12px;
  color: #292414;
  border-left: 5px solid var(--amber);
  border-radius: 2px 12px 12px 2px;
  background: rgba(255, 188, 88, .2);
  font-size: 13px;
  line-height: 1.45;
}

.simulator-shell {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(370px, 430px);
  align-items: start;
  gap: clamp(14px, 2vw, 28px);
  margin: 0 auto;
}

.stage-column {
  min-width: 0;
  display: grid;
  gap: clamp(10px, 1.2vw, 18px);
}

.viewport-panel,
.sequence-panel,
.facecut-panel,
.inspector,
.model-notes {
  border: 1px solid rgba(32, 35, 40, .22);
  border-radius: var(--chamfer);
  box-shadow: var(--shadow);
}

.viewport-panel {
  overflow: clip;
  color: #f4f5f2;
  border-color: rgba(255, 255, 255, .14);
  background: var(--graphite-deep);
}

.viewport-toolbar {
  min-height: 62px;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto auto auto;
  align-items: center;
  gap: 14px;
  padding: 9px 11px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: linear-gradient(180deg, #33393d, #24292c);
}

.toolbar-identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 13px;
}

.toolbar-identity > span:last-child { min-width: 0; }
.toolbar-identity strong,
.toolbar-identity small { display: block; }
.toolbar-identity strong { letter-spacing: -.01em; }
.toolbar-identity small { margin-top: 4px; color: #9da6a0; font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.module-number {
  min-width: 31px;
  height: 31px;
  display: inline-grid;
  place-items: center;
  color: var(--graphite-deep);
  border-radius: 50%;
  background: var(--signal);
  font: 950 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  box-shadow: 0 0 16px rgba(187, 255, 90, .34);
}

.mode-switch,
.camera-controls {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px 3px 12px 3px;
  background: rgba(3, 6, 5, .36);
}

.mode-button,
.camera-controls button {
  min-height: 34px;
  padding: 8px 10px;
  color: #adb5b0;
  border: 0;
  border-radius: 8px 2px 8px 2px;
  background: transparent;
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
  cursor: pointer;
}

.mode-button:hover,
.mode-button:focus-visible,
.camera-controls button:hover,
.camera-controls button:focus-visible {
  color: #fff;
  outline: 1px solid rgba(98, 231, 242, .54);
}

.mode-button.is-active {
  color: #161c11;
  background: var(--signal);
  box-shadow: inset 0 1px rgba(255, 255, 255, .7), 0 0 15px rgba(187, 255, 90, .22);
}

.viewport {
  height: clamp(470px, 60svh, 760px);
  min-height: 440px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 60%, rgba(76, 117, 73, .22), transparent 34%),
    linear-gradient(180deg, #1c2b27, #101714 72%);
}

#treeCanvas {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
  z-index: 1;
  outline: none;
  touch-action: none;
  cursor: grab;
}

#treeCanvas:active { cursor: grabbing; }
#treeCanvas:focus-visible { box-shadow: inset 0 0 0 3px var(--cyan); }
body[data-tool-mode="place"] #treeCanvas { cursor: crosshair; }

.loading-state,
.runtime-error {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 9px;
  position: absolute;
  z-index: 5;
  inset: 0;
  padding: 30px;
  text-align: center;
  background: radial-gradient(circle, #253832, #101714 70%);
}

.loading-state strong,
.runtime-error strong { font: 800 clamp(25px, 3vw, 42px)/1 Arial, Helvetica, sans-serif; letter-spacing: -.04em; }
.loading-state > span:last-child,
.runtime-error span { max-width: 520px; color: #aeb7b1; line-height: 1.5; }

.loading-orbit {
  width: 54px;
  height: 54px;
  border: 2px solid rgba(187, 255, 90, .18);
  border-top-color: var(--signal);
  border-radius: 50%;
  animation: spin 1.1s linear infinite;
}

.runtime-error { color: #fff; background: linear-gradient(135deg, #442325, #171516); }
.runtime-error strong { color: var(--coral); }

.phase-badge {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: static;
  padding: 8px 11px;
  color: #e8eee9;
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 12px 3px 12px 3px;
  background: rgba(9, 13, 11, .56);
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
  pointer-events: none;
}

.phase-badge > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px rgba(187, 255, 90, .8);
}

.scene-hud {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: center;
  gap: 7px 14px;
  padding: 11px 13px;
  color: #aeb7b1;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 0;
  background: #202628;
  font: 750 12px/1.15 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  pointer-events: none;
}

.scene-hud strong { color: #f5f7f5; font-size: 13px; text-align: right; }
.scene-hud-left,
.scene-hud-right { position: static; text-align: left; }
.hud-divider { display: none; }

.axis-glyph {
  width: auto;
  min-height: 78px;
  display: grid;
  place-items: center;
  align-content: center;
  position: static;
  color: #dbe2de;
  border-left: 1px solid rgba(255, 255, 255, .1);
  background: #202628;
  font: 900 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.axis-glyph svg {
  width: 58px;
  height: 58px;
  display: block;
  overflow: visible;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, .58));
}

.axis-glyph line {
  stroke-width: 2.2;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.axis-glyph text {
  dominant-baseline: middle;
  text-anchor: middle;
  fill: currentColor;
  font: 950 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.axis-origin { fill: #f5f7f5; stroke: rgba(9, 13, 11, .9); stroke-width: 1.2; }
#axisXLine { stroke: var(--cyan); }
#axisXLabel { fill: var(--cyan); }
#axisYLine { stroke: var(--signal); }
#axisYLabel { fill: var(--signal); }
#axisZLine { stroke: var(--coral); }
#axisZLabel { fill: var(--coral); }

.axis-caption {
  display: block;
  margin-top: -2px;
  color: #9ba6a0;
  text-align: center;
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.vector-guide {
  width: auto;
  overflow: hidden;
  position: static;
  color: #ecf3ee;
  border: 1px solid rgba(98, 231, 242, .3);
  border-radius: 0;
  background: #111918;
}

.vector-guide header,
.vector-guide > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.vector-guide header { border-bottom: 1px solid rgba(255, 255, 255, .1); }
.vector-guide header span { color: #9ba9a1; }
.vector-guide header strong { color: var(--signal); }
.vector-guide canvas { width: 100%; height: 138px; display: block; }
.vector-guide > div { color: #acb8b0; border-top: 1px solid rgba(255, 255, 255, .1); }

.motion-interlock {
  max-width: none;
  display: grid;
  gap: 5px;
  grid-column: 1 / -1;
  position: static;
  padding: 12px 15px;
  color: #21170c;
  border: 1px solid #ffe0ad;
  border-radius: 0;
  background: var(--amber);
  box-shadow: 0 0 30px rgba(255, 188, 88, .38);
  font: 850 12px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .07em;
  text-transform: uppercase;
  animation: interlock-flash .72s ease-in-out 3;
  pointer-events: none;
}

.motion-interlock strong { font-size: 14px; }
.motion-interlock span { opacity: .76; }

.instrument-deck {
  display: grid;
  gap: 1px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .12);
}

.instrument-readouts {
  display: grid;
  grid-template-columns: minmax(210px, .72fr) minmax(420px, 1.28fr) 118px;
  gap: 1px;
  background: rgba(255, 255, 255, .1);
}

.diagnostic-workbench {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(220px, .72fr) minmax(0, 2.28fr);
  gap: 1px;
  background: rgba(255, 255, 255, .1);
}

.viewport-control-dock {
  display: grid;
  grid-template-columns: minmax(260px, 1.05fr) minmax(300px, 1.15fr) minmax(240px, .9fr);
  gap: 1px;
  overflow: hidden;
  position: sticky;
  z-index: 8;
  bottom: 0;
  color: #eef3ef;
  border-top: 1px solid rgba(255, 255, 255, .18);
  border-bottom: 1px solid rgba(0, 0, 0, .36);
  background: rgba(255, 255, 255, .14);
  box-shadow: 0 -16px 38px rgba(0, 0, 0, .3);
}

.dock-group {
  min-width: 0;
  padding: 10px 12px 11px;
  scroll-snap-align: start;
  background:
    radial-gradient(circle at 100% 0, rgba(98, 231, 242, .08), transparent 48%),
    linear-gradient(145deg, #2a3032, #181c1e);
}

.dock-heading {
  min-height: 17px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  color: #f4f7f4;
}

.dock-heading h3,
.dock-heading strong,
.dock-heading > span {
  margin: 0;
  font: 900 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.dock-heading > span { color: var(--signal); }
.dock-heading strong,
.dock-heading h3 + span { color: #bac4be; font-size: 11px; }
.dock-trigger .dock-heading h3 { color: var(--amber); }
.dock-trigger .dock-heading > span { color: var(--amber); }
.dock-replay .dock-heading h3 { color: var(--cyan); }

.dock-action-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.1fr .85fr;
  gap: 6px;
}

.viewport-control-dock .sample-action,
.viewport-control-dock .run-action,
.viewport-control-dock .secondary-action,
.viewport-control-dock .primary-action {
  min-width: 0;
  min-height: 50px;
  padding: 8px 9px;
  border-radius: 11px 3px 11px 3px;
}

.viewport-control-dock .sample-action {
  color: #f4f7f4;
  border-color: rgba(187, 255, 90, .28);
  background: rgba(7, 11, 9, .48);
}

.viewport-control-dock .sample-action span { font-size: 13px; }
.viewport-control-dock .sample-action small { margin-top: 2px; font-size: 12px; }
.viewport-control-dock .sample-action.is-active { color: #101b14; background: var(--cyan); }

.viewport-control-dock .dock-reset {
  color: #c5cdc8;
  border-color: rgba(255, 255, 255, .16);
  background: rgba(255, 255, 255, .06);
  font-size: 12px;
  line-height: 1.25;
}

.viewport-control-dock .dock-trigger {
  background:
    radial-gradient(circle at 18% 0, rgba(255, 112, 77, .2), transparent 55%),
    linear-gradient(145deg, #30292a, #1a1b1c);
}

.dock-trigger-body {
  display: grid;
  grid-template-columns: minmax(142px, .9fr) minmax(108px, 1.1fr);
  align-items: center;
  gap: 10px;
}

.viewport-control-dock .gas-trigger {
  min-height: 50px;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  padding: 7px 9px;
  border-radius: 12px 3px 12px 3px;
}

.viewport-control-dock .trigger-icon { width: 32px; height: 32px; border-width: 1px; }
.viewport-control-dock .trigger-icon i { width: 15px; height: 6px; }
.viewport-control-dock .gas-trigger > span:last-child { gap: 3px; }
.viewport-control-dock .gas-trigger strong { font-size: 14px; }
.viewport-control-dock .gas-trigger small { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.viewport-control-dock .back-progress { margin-top: 0; }
.viewport-control-dock .trigger-meta { margin-top: 6px; }
.viewport-control-dock .trigger-meta button { min-height: 30px; padding: 5px 7px; font-size: 12px; }

.dock-replay .replay-scrubber {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  margin-top: 0;
}

.dock-replay .replay-scrubber > span { font-size: 12px; white-space: nowrap; }
.dock-replay .replay-scrubber input { min-width: 0; }
.dock-replay .replay-actions { grid-template-columns: .8fr 1.2fr; gap: 6px; margin-top: 6px; }
.dock-replay .replay-actions .secondary-action,
.dock-replay .replay-actions .primary-action { min-height: 31px; padding-block: 6px; }

.diagnostic-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  color: #edf3ef;
  border-top: 1px solid rgba(255, 255, 255, .13);
  background: rgba(255, 255, 255, .11);
}

.diagnostic-view {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: linear-gradient(160deg, #1d2825, #111816);
}

.diagnostic-view figcaption {
  min-height: 35px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px 7px;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.diagnostic-view figcaption strong { color: var(--signal); font-size: 14px; }
.diagnostic-view:nth-of-type(2) figcaption strong { color: var(--cyan); }
.diagnostic-view:nth-of-type(3) figcaption strong { color: var(--coral); }
.diagnostic-view figcaption span { min-width: 0; overflow: hidden; color: #939f98; text-overflow: ellipsis; white-space: nowrap; }

.diagnostic-canvas-shell {
  height: clamp(112px, 13vw, 158px);
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(98, 231, 242, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(98, 231, 242, .045) 1px, transparent 1px),
    radial-gradient(circle at 50% 74%, rgba(187, 255, 90, .08), transparent 45%),
    #0d1412;
  background-size: 18px 18px, 18px 18px, auto, auto;
}

.diagnostic-view canvas { width: 100%; height: 100%; display: block; position: relative; z-index: 1; }

.diagnostic-axis {
  position: absolute;
  z-index: 2;
  right: 7px;
  bottom: 6px;
  color: rgba(232, 239, 234, .62);
  font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
  pointer-events: none;
}

.diagnostic-view > p {
  margin: 0;
  padding: 7px 9px 8px;
  overflow: hidden;
  color: #849089;
  border-top: 1px solid rgba(255, 255, 255, .07);
  font: 750 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.viewport-foot {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 14px;
  color: #9ea7a1;
  border-top: 1px solid rgba(255, 255, 255, .11);
  background: #202528;
  font: 750 11px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.legend { display: inline-flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 7px; }
.legend i { width: 8px; height: 8px; display: inline-block; border-radius: 50%; }
.legend-coral { background: var(--coral); }
.legend-cyan { background: var(--cyan); }
.legend-lime { background: var(--signal); }

.sequence-panel {
  padding: clamp(15px, 1.7vw, 22px);
  background: rgba(255, 253, 247, .94);
}

.panel-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 14px;
}

.panel-heading > div:first-child {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  align-items: center;
}

.panel-heading .module-number { grid-row: 1 / span 2; }
.panel-heading p { margin: 0; color: var(--muted); font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.panel-heading h2 { margin: 5px 0 0; font: 800 clamp(25px, 3vw, 40px)/.95 Arial, Helvetica, sans-serif; letter-spacing: -.045em; }

.sequence-tools { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.sequence-progress { display: grid; flex: 0 0 auto; text-align: right; }
.sequence-progress span { font: 900 23px/1 Arial, Helvetica, sans-serif; letter-spacing: -.04em; }
.sequence-progress small { margin-top: 4px; color: var(--muted); font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.sample-action {
  min-height: 48px;
  display: grid;
  gap: 4px;
  padding: 9px 12px;
  color: #f3f5f2;
  border: 1px solid rgba(32, 35, 40, .18);
  border-radius: 12px 3px 12px 3px;
  background: var(--graphite);
  text-align: left;
  cursor: pointer;
}

.sample-action span { font: 900 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }
.sample-action small { color: #aeb7b1; font: 750 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .05em; text-transform: uppercase; }
.sample-action:hover,
.sample-action:focus-visible { color: var(--signal); border-color: var(--violet); outline: none; }
.sample-action.is-active { color: #101b14; border-color: #55a3ab; background: var(--cyan); }
.sample-action.is-active small { color: rgba(16, 27, 20, .67); }

.keyframe-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.keyframe {
  min-width: 0;
  min-height: 94px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  align-items: start;
  gap: 8px 9px;
  padding: 12px;
  color: var(--ink);
  border: 1px solid rgba(32, 35, 40, .18);
  border-radius: 14px 3px 14px 3px;
  background: #eeece5;
  text-align: left;
}

button.keyframe { cursor: pointer; }
button.keyframe:disabled { opacity: .48; cursor: not-allowed; }
button.keyframe:hover:not(:disabled),
button.keyframe:focus-visible { border-color: var(--violet); outline: none; }
.keyframe.is-current { border-color: var(--violet); box-shadow: inset 0 0 0 2px rgba(115, 104, 255, .18); }
.keyframe.is-locked { color: #18210d; border-color: #739f32; background: rgba(187, 255, 90, .22); }
.keyframe.is-active-gate { color: #1c1a10; border-color: #b07820; background: rgba(255, 188, 88, .23); }
.keyframe.is-complete { color: #152126; border-color: #3d98a0; background: rgba(98, 231, 242, .2); }
.keyframe.is-failed { color: #481720; border-color: var(--danger); background: rgba(255, 79, 99, .18); }

.keyframe-index {
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: var(--graphite);
  font: 900 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.keyframe strong,
.keyframe small { display: block; }
.keyframe strong { overflow: hidden; font-size: 13px; line-height: 1.15; text-overflow: ellipsis; }
.keyframe small { margin-top: 4px; color: var(--muted); font-size: 12px; line-height: 1.2; }
.keyframe i { grid-column: 1 / -1; align-self: end; color: var(--muted); font: normal 850 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.facecut-panel {
  overflow: hidden;
  padding: clamp(15px, 1.7vw, 22px);
  background:
    radial-gradient(circle at 96% 5%, rgba(255, 188, 88, .14), transparent 34%),
    rgba(255, 253, 247, .96);
}

.compact-heading { align-items: center; }
.compact-heading .run-action { min-width: 190px; }

.facecut-body {
  display: grid;
  grid-template-columns: minmax(280px, .9fr) minmax(320px, 1.1fr);
  gap: 16px;
}

.facecut-diagram,
.facecut-results {
  min-width: 0;
  border: 1px solid rgba(32, 35, 40, .16);
  border-radius: 16px 4px 16px 4px;
  background: #ede9df;
}

.facecut-results { padding: 16px; }

.facecut-diagram {
  overflow: hidden;
  color: #edf3ef;
  background: #111918;
  border-color: rgba(98, 231, 242, .22);
}

.cut-plan-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 43px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  font: 850 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.cut-plan-heading strong { color: var(--signal); font-size: 10px; text-align: right; }

.facecut-diagram canvas {
  display: block;
  width: 100%;
  height: clamp(270px, 28vw, 360px);
  background: #0d1513;
}

.cut-plan-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 13px;
  padding: 10px 12px 12px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: rgba(237, 243, 239, .78);
  font: 750 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.cut-plan-legend span { display: flex; align-items: center; gap: 7px; min-width: 0; }
.cut-plan-legend i { width: 12px; height: 12px; flex: 0 0 auto; border: 1px solid rgba(255, 255, 255, .3); }
.cut-plan-face { background: #ff704d; }
.cut-plan-hinge { background: #bbff5a; }
.cut-plan-back { background: #62e7f2; }
.cut-plan-intact { background: #c99356; }

.validation-banner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  padding: 13px;
  border: 1px solid rgba(32, 35, 40, .16);
  border-radius: 12px 3px 12px 3px;
  background: rgba(255, 255, 255, .56);
}

.validation-banner > span { width: 11px; height: 11px; grid-row: 1 / span 2; margin-top: 2px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 12px rgba(255, 188, 88, .62); }
.validation-banner strong { font-size: 13px; }
.validation-banner small { color: var(--muted); font-size: 12px; line-height: 1.35; }
.validation-banner[data-state="passed"] { border-color: rgba(74, 137, 32, .48); background: rgba(187, 255, 90, .2); }
.validation-banner[data-state="passed"] > span { background: var(--signal); }
.validation-banner[data-state="failed"] { border-color: rgba(255, 79, 99, .52); background: rgba(255, 79, 99, .14); }
.validation-banner[data-state="failed"] > span { background: var(--danger); box-shadow: 0 0 12px rgba(255, 79, 99, .6); }

.face-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin: 10px 0 0;
}

.face-stats > div { padding: 11px; border-radius: 11px 3px 11px 3px; background: rgba(255, 255, 255, .58); }
.face-stats dt { color: var(--muted); font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }
.face-stats dd { margin: 7px 0 0; font: 950 22px/1 Arial, Helvetica, sans-serif; letter-spacing: -.04em; }
.reference-note { margin: 12px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.reference-note a,
.safety-copy a { color: #4d42d3; font-weight: 800; text-underline-offset: 3px; }

.inspector {
  max-height: calc(100svh - 28px);
  overflow-x: hidden;
  overflow-y: auto;
  position: sticky;
  top: 14px;
  background: rgba(247, 244, 236, .98);
  scrollbar-color: #8e958e transparent;
}

.inspector-section {
  padding: 20px;
  border-bottom: 1px solid rgba(32, 35, 40, .16);
}

.inspector-section:last-child { border-bottom: 0; }

.active-frame {
  color: #f5f7f4;
  background:
    radial-gradient(circle at 100% 0, rgba(115, 104, 255, .28), transparent 48%),
    linear-gradient(145deg, #30353a, #171a1c);
}

.inspector-kicker,
.section-title-row,
.contact-readout,
.range-control > span,
.moment-readout > div,
.moment-readout > p {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.inspector-kicker {
  color: #adb5b0;
  font: 850 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.inspector-kicker strong {
  color: var(--graphite-deep);
  padding: 7px 9px;
  border-radius: 50%;
  background: var(--signal);
}

.active-frame h2 { margin: 17px 0 8px; font: 800 26px/.98 Arial, Helvetica, sans-serif; letter-spacing: -.035em; }
.active-frame > p { margin: 0 0 17px; color: #bec5c0; font-size: 13px; line-height: 1.5; }

.position-controls {
  min-width: 0;
  display: grid;
  gap: 0;
  margin: 0 0 17px;
  padding: 12px 13px 14px;
  border: 1px solid rgba(115, 104, 255, .23);
  border-radius: 13px 3px 13px 3px;
  background: rgba(115, 104, 255, .055);
}

.position-controls legend {
  padding: 0 7px;
  color: #5b55b6;
  font: 900 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.position-controls .range-control:first-of-type { margin-top: 6px; }

.contact-readout {
  padding: 11px 12px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 11px 3px 11px 3px;
  background: rgba(4, 7, 5, .32);
  font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.contact-readout strong { margin-left: auto; color: var(--signal); font-size: 14px; }
.contact-readout i { color: #bac2bd; font-style: normal; }

.section-title-row { margin-bottom: 16px; }
.section-title-row h2 { margin: 0; font: 850 17px/1 Arial, Helvetica, sans-serif; letter-spacing: -.02em; }
.section-title-row > span { color: var(--muted); font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.range-control {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.range-control > span { font-size: 12px; }
.range-control strong { font-weight: 720; }
.range-control output { color: #374439; font: 900 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

input[type="range"] {
  width: 100%;
  height: 18px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .22);
}

input[type="range"]::-webkit-slider-thumb {
  width: 17px;
  height: 17px;
  margin-top: -6px;
  appearance: none;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--graphite);
  box-shadow: 0 2px 5px rgba(0, 0, 0, .32), 0 0 0 2px var(--violet);
}

input[type="range"]::-moz-range-track { height: 5px; border: 0; border-radius: 5px; background: linear-gradient(90deg, var(--violet), var(--cyan)); }
input[type="range"]::-moz-range-thumb { width: 15px; height: 15px; border: 2px solid #fff; border-radius: 50%; background: var(--graphite); box-shadow: 0 0 0 2px var(--violet); }
input[type="range"]:focus-visible { outline: 2px solid var(--violet); outline-offset: 5px; }

.keyboard-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.control-note {
  margin: 12px 0 0;
  padding: 9px 10px;
  color: #465149;
  border-left: 3px solid var(--cyan);
  background: rgba(98, 231, 242, .09);
  font-size: 12px;
  line-height: 1.45;
}

.control-note strong { color: var(--ink); }

.pose-actions,
.physics-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: 16px;
}

.primary-action,
.run-action,
.secondary-action {
  min-height: 43px;
  padding: 10px 13px;
  border-radius: 12px 3px 12px 3px;
  font: 900 12px/1.1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color .18s ease, background .18s ease, border-color .18s ease, transform .18s ease;
}

.primary-action,
.run-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #121a0b;
  border: 1px solid #d9ff9f;
  background: var(--signal);
  box-shadow: 0 0 18px rgba(187, 255, 90, .24), inset 0 1px rgba(255, 255, 255, .7);
}

.secondary-action {
  color: var(--ink);
  border: 1px solid rgba(32, 35, 40, .23);
  background: #ebe8df;
}

.active-frame .secondary-action { color: #f2f5f2; border-color: rgba(255, 255, 255, .2); background: rgba(255, 255, 255, .08); }
.preset-button { width: 100%; }

.primary-action:hover,
.primary-action:focus-visible,
.run-action:hover,
.run-action:focus-visible,
.secondary-action:hover,
.secondary-action:focus-visible {
  border-color: var(--coral);
  outline: none;
  transform: translateY(-1px);
}

button:disabled {
  opacity: .42;
  filter: grayscale(.5);
  cursor: not-allowed;
  transform: none !important;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin: 0;
}

.metric-grid > div {
  padding: 11px;
  border: 1px solid rgba(32, 35, 40, .16);
  border-radius: 11px 3px 11px 3px;
  background: rgba(255, 255, 255, .52);
}

.metric-grid dt { color: var(--muted); font: 800 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }
.metric-grid dd { margin: 7px 0 0; font: 900 19px/1 Arial, Helvetica, sans-serif; letter-spacing: -.035em; }
.metric-grid .metric-wide { grid-column: 1 / -1; }
.metric-grid .metric-wide dd { font-size: 16px; }
#motionOnsetMetric { font-size: 15px; }

.holding-visual {
  overflow: hidden;
  margin-top: 9px;
  border: 1px solid rgba(32, 35, 40, .16);
  border-radius: 11px 3px 11px 3px;
  background: #20282a;
}

.holding-visual canvas {
  width: 100%;
  height: 108px;
  display: block;
}

.holding-visual > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 8px 9px;
  color: #aab4ae;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font: 750 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.holding-visual i { color: var(--cyan); font-style: normal; }
.holding-visual i:last-child { color: var(--coral); }
.holding-visual strong { color: #f2f5f3; }

.moment-readout {
  margin-top: 15px;
  padding: 13px;
  border: 1px solid rgba(32, 35, 40, .16);
  border-radius: 13px 3px 13px 3px;
  background: #eae7de;
}

.moment-readout > div { color: var(--muted); font-size: 12px; }
.moment-readout > div strong { color: var(--ink); font: 850 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.moment-track { height: 7px; overflow: hidden; margin: 6px 0 10px; border-radius: 8px; background: rgba(32, 35, 40, .14); }
.moment-track i { width: 14%; height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--coral)); transition: width .24s ease; }
.moment-track-hinge i { width: 100%; background: linear-gradient(90deg, #7cb43b, var(--signal)); }
.moment-readout > p { margin: 12px 0 0; padding-top: 10px; border-top: 1px solid rgba(32, 35, 40, .14); font-size: 11px; }
.moment-readout > p strong { color: #3e6720; font: 950 16px/1 Arial, Helvetica, sans-serif; }

.physics-actions { grid-template-columns: minmax(0, 1fr) auto; }

.trigger-console {
  color: #f3f5f2;
  background:
    radial-gradient(circle at 100% 0, rgba(255, 112, 77, .25), transparent 48%),
    linear-gradient(145deg, #32373a, #171a1c);
}

.trigger-console .section-title-row > span { color: var(--amber); }
.trigger-console > p { margin: -4px 0 14px; color: #b9c1bc; font-size: 11px; line-height: 1.45; }

.gas-trigger {
  width: 100%;
  min-height: 78px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 13px;
  padding: 12px;
  color: #fff;
  border: 1px solid rgba(255, 208, 196, .58);
  border-radius: 18px 4px 18px 4px;
  background: linear-gradient(135deg, #f25336, #b92f25);
  box-shadow: inset 0 1px rgba(255, 255, 255, .36), 0 10px 24px rgba(129, 36, 27, .28);
  text-align: left;
  cursor: pointer;
  touch-action: none;
}

.gas-trigger.is-active { transform: translateY(2px) scale(.992); filter: saturate(1.25); box-shadow: inset 0 3px 9px rgba(66, 8, 3, .38), 0 0 22px rgba(255, 112, 77, .45); }
.gas-trigger:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.gas-trigger > span:last-child { display: grid; gap: 5px; }
.gas-trigger strong { font: 950 19px/1 Arial, Helvetica, sans-serif; letter-spacing: -.03em; }
.gas-trigger small { color: rgba(255, 255, 255, .72); font: 800 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.trigger-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, .65);
  border-radius: 50%;
  background: rgba(24, 10, 7, .24);
}

.trigger-icon i { width: 19px; height: 8px; display: block; border-radius: 8px 2px 8px 2px; background: #fff; transform: rotate(-24deg); }
.back-progress { height: 9px; overflow: hidden; margin-top: 12px; border-radius: 9px; background: rgba(255, 255, 255, .13); }
.back-progress i { width: 0; height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, var(--signal), var(--amber), var(--coral)); box-shadow: 0 0 12px rgba(255, 188, 88, .5); transition: width .1s linear; }
.trigger-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 8px; }
.trigger-meta output { color: var(--signal); font: 950 14px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.trigger-meta button { min-height: 32px; padding: 7px 9px; color: #dce3de; border: 1px solid rgba(255, 255, 255, .18); border-radius: 9px 2px 9px 2px; background: rgba(255, 255, 255, .07); font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; cursor: pointer; }

.outcome-section { background: linear-gradient(145deg, rgba(98, 231, 242, .08), transparent 55%); }
.outcome-section[data-outcome="success"] { background: linear-gradient(145deg, rgba(187, 255, 90, .19), rgba(98, 231, 242, .08)); }
.outcome-section[data-outcome="standing"] { background: linear-gradient(145deg, rgba(255, 188, 88, .2), transparent); }
.metric-caveat { margin: 9px 0 0; color: var(--muted); font-size: 11px; line-height: 1.4; }
.replay-scrubber { display: grid; gap: 8px; margin-top: 14px; color: var(--muted); font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }
.replay-actions { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 8px; margin-top: 12px; }
.replay-action { width: 100%; }

.analyzing { display: inline-flex; align-items: center; gap: 6px; }
.analyzing i { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 9px rgba(98, 231, 242, .8); animation: calm-pulse 1.25s ease-in-out infinite; }

.event-log {
  max-height: 144px;
  display: grid;
  gap: 8px;
  overflow: auto;
  margin: 0;
  padding: 0;
  list-style: none;
  scrollbar-color: #a9afa9 transparent;
}

.event-log li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 9px;
  color: #4e5551;
  font-size: 10px;
  line-height: 1.35;
}

.event-log time { color: #767d78; font: 750 8px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }

.model-notes {
  width: min(1680px, calc(100% - clamp(24px, 6vw, 96px)));
  margin: clamp(42px, 6vw, 86px) auto 0;
  padding: clamp(26px, 4vw, 58px);
  background: rgba(255, 253, 247, .93);
}

.notes-heading {
  display: grid;
  grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr);
  align-items: end;
  gap: 24px;
  margin-bottom: 28px;
}

.notes-heading .eyebrow { margin: 0; }
.notes-heading h2 { margin: 0; font: 900 clamp(42px, 6vw, 84px)/.86 Arial, Helvetica, sans-serif; letter-spacing: -.065em; }

.note-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.note-grid article {
  min-height: 210px;
  padding: 23px;
  border: 1px solid rgba(32, 35, 40, .18);
  border-radius: 18px 4px 18px 4px;
  background: #eeece4;
}

.note-grid article > span { color: var(--coral); font: 950 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.note-grid h3 { margin: 36px 0 10px; font: 850 clamp(24px, 2.4vw, 34px)/.96 Arial, Helvetica, sans-serif; letter-spacing: -.04em; }
.note-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

.safety-copy {
  margin: 18px 0 0;
  padding: 16px 18px;
  color: #39291e;
  border: 1px solid rgba(255, 112, 77, .38);
  border-radius: 12px 3px 12px 3px;
  background: rgba(255, 112, 77, .12);
  font-size: 12px;
  line-height: 1.5;
}

footer {
  display: grid;
  grid-template-columns: auto minmax(220px, 1fr) auto;
  align-items: center;
  gap: 30px;
  padding: 28px clamp(18px, 4vw, 62px);
  color: #b7c0ba;
  background: linear-gradient(135deg, #2a3033, #141719);
  box-shadow: inset 0 1px rgba(255, 255, 255, .12);
}

.footer-brand { color: #f5f6f3; font-size: clamp(27px, 3vw, 42px); }
.footer-brand .portrait-letter { border-width: 1.5px; }
footer p { max-width: 560px; margin: 0; font-size: 11px; line-height: 1.45; }
footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 14px 22px; }
footer nav a { font-size: 12px; text-underline-offset: 4px; }
footer nav a:hover,
footer nav a:focus-visible { color: var(--signal); outline: none; }

.noscript {
  margin: 0;
  padding: 16px;
  color: #fff;
  background: var(--danger);
  text-align: center;
  font-weight: 800;
}

body[data-phase="cutting"] .system-light,
body[data-phase="face-cutting"] .system-light,
body[data-phase="back-cutting"] .system-light,
body[data-phase="standing"] .system-light { background: var(--amber); border-color: #ffe3b7; box-shadow: 0 0 13px rgba(255, 188, 88, .9); }
body[data-phase="face-failed"] .system-light { background: var(--danger); border-color: #ffd0d6; box-shadow: 0 0 16px rgba(255, 79, 99, 1); }
body[data-phase="yielding"] .system-light,
body[data-phase="falling"] .system-light { background: var(--coral); border-color: #ffd0c5; box-shadow: 0 0 16px rgba(255, 112, 77, 1); }
body[data-phase="settled"] .system-light,
body[data-phase="replay-ready"] .system-light { background: var(--cyan); border-color: #d9fbff; box-shadow: 0 0 15px rgba(98, 231, 242, .9); }
body[data-phase="replaying"] .system-light { background: var(--violet); border-color: #e2dfff; box-shadow: 0 0 15px rgba(115, 104, 255, .92); }
body[data-runtime="error"] .system-light { background: var(--danger); border-color: #ffd0d6; box-shadow: 0 0 14px rgba(255, 79, 99, .9); }

body[data-phase="face-failed"] .phase-badge > span { background: var(--danger); box-shadow: 0 0 12px rgba(255, 79, 99, .9); }
body[data-phase="cutting"] .phase-badge > span,
body[data-phase="face-cutting"] .phase-badge > span,
body[data-phase="back-cutting"] .phase-badge > span,
body[data-phase="standing"] .phase-badge > span { background: var(--amber); box-shadow: 0 0 12px rgba(255, 188, 88, .9); }
body[data-phase="yielding"] .phase-badge > span,
body[data-phase="falling"] .phase-badge > span { background: var(--coral); box-shadow: 0 0 12px rgba(255, 112, 77, .9); }
body[data-phase="settled"] .phase-badge > span,
body[data-phase="replay-ready"] .phase-badge > span { background: var(--cyan); box-shadow: 0 0 12px rgba(98, 231, 242, .9); }
body[data-phase="replaying"] .phase-badge > span { background: var(--violet); box-shadow: 0 0 12px rgba(115, 104, 255, .9); }

@keyframes calm-pulse {
  0%, 100% { opacity: .64; transform: scale(.86); }
  50% { opacity: 1; transform: scale(1.08); }
}

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes interlock-flash {
  0%, 100% { transform: translateY(0); filter: saturate(1); }
  50% { transform: translateY(-2px); filter: saturate(1.32) brightness(1.08); }
}

@media (max-width: 1280px) {
  .simulator-shell { grid-template-columns: minmax(0, 1fr) 350px; }
  .viewport-toolbar { grid-template-columns: minmax(180px, 1fr) auto auto; }
  .camera-controls { grid-column: 1 / -1; justify-self: end; margin-top: -4px; }
  .viewport-control-dock { grid-template-columns: minmax(240px, 1fr) minmax(285px, 1.12fr) minmax(220px, .9fr); }
  .instrument-readouts { grid-template-columns: minmax(190px, .7fr) minmax(340px, 1.3fr) 106px; }
  .diagnostic-workbench { grid-template-columns: 210px minmax(0, 1fr); }
  .keyframe-track { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .keyframe-gate { min-height: 76px; }
  .note-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .system-state > span:last-child { display: none; }
}

@media (max-width: 980px) {
  .site-header { min-height: 76px; }
  .brand { font-size: clamp(34px, 7vw, 56px); }
  .intro { grid-template-columns: 1fr; align-items: start; gap: 24px; }
  .intro-copy { max-width: 760px; }
  .simulator-shell { display: flex; flex-direction: column; }
  .stage-column { display: contents; }
  .viewport-panel { order: 1; }
  .inspector { order: 2; }
  .sequence-panel { order: 3; }
  .facecut-panel { order: 4; }
  .intro { grid-template-columns: 1fr; gap: 10px; }
  .intro-copy { max-width: none; }
  .facecut-body { grid-template-columns: 1fr 1fr; }
  .inspector { max-height: none; overflow: visible; position: static; display: grid; grid-template-columns: 1fr 1fr; }
  .inspector-section { border-right: 1px solid rgba(32, 35, 40, .16); }
  .active-frame { grid-column: 1 / -1; }
  .event-section { grid-column: 1 / -1; }
  .model-notes { width: 100%; }
  .viewport-control-dock { grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); overflow: hidden; }
  .dock-sequence { grid-column: 1 / -1; }
  .dock-action-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .dock-trigger-body { grid-template-columns: minmax(0, 1fr); }
  footer { grid-template-columns: auto 1fr; }
  footer nav { grid-column: 1 / -1; justify-content: flex-start; }
}

@media (max-width: 720px) {
  .site-header { min-height: 62px; gap: 10px; padding: 8px 11px; }
  .brand { font-size: clamp(29px, 9vw, 38px); }
  .header-actions { gap: 5px; }
  .system-state { min-width: 32px; min-height: 34px; justify-content: center; padding: 7px; }
  .header-link { min-height: 34px; padding: 8px; font-size: 11px; }
  .header-link-home { display: none; }
  main { padding-inline: 8px; }
  .intro { padding: 13px 4px 15px; }
  .intro h1 { font-size: clamp(42px, 13vw, 62px); }
  .intro-copy { font-size: 16px; }
  .viewport-toolbar { grid-template-columns: 1fr auto; }
  .phase-badge { grid-column: 1 / -1; grid-row: 2; justify-self: stretch; justify-content: center; }
  .toolbar-identity small { display: none; }
  .camera-controls { width: 100%; flex-wrap: wrap; justify-self: stretch; }
  .camera-controls button { flex: 1 1 calc(20% - 4px); min-width: 72px; font-size: 11px; }
  .viewport { height: 52svh; min-height: 390px; }
  .instrument-readouts { grid-template-columns: 1fr 1fr 94px; }
  .scene-hud { padding: 9px 10px; font-size: 11px; }
  .scene-hud strong { font-size: 12px; }
  .axis-glyph { width: auto; min-height: 0; }
  .axis-glyph svg { width: 46px; height: 46px; }
  .axis-caption { font-size: 9px; }
  .diagnostic-workbench { grid-template-columns: 1fr; }
  .vector-guide { display: grid; grid-template-columns: 128px minmax(0, 1fr) 128px; align-items: stretch; }
  .vector-guide header,
  .vector-guide > div { align-content: center; flex-direction: column; justify-content: center; font-size: 11px; }
  .vector-guide canvas { height: 104px; }
  .viewport-control-dock {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    overflow: hidden;
    scroll-snap-type: none;
  }
  .dock-group { padding: 8px 9px 9px; scroll-snap-align: none; }
  .dock-sequence { grid-column: 1 / -1; }
  .dock-action-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; }
  .viewport-control-dock .sample-action,
  .viewport-control-dock .run-action,
  .viewport-control-dock .secondary-action,
  .viewport-control-dock .primary-action { min-height: 42px; padding: 6px 7px; font-size: 12px; overflow-wrap: anywhere; }
  .viewport-control-dock .sample-action small { display: none; }
  .dock-heading { gap: 6px; margin-bottom: 6px; }
  .dock-heading h3,
  .dock-heading strong,
  .dock-heading > span { font-size: 12px; }
  .dock-heading h3 + span,
  .dock-heading strong { font-size: 11px; }
  .dock-trigger-body { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .viewport-control-dock .gas-trigger { min-height: 42px; }
  .viewport-control-dock .trigger-meta { margin-top: 4px; }
  .dock-replay .replay-actions { margin-top: 5px; }
  .diagnostic-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: hidden;
    scroll-snap-type: none;
  }
  .diagnostic-view { scroll-snap-align: none; }
  .diagnostic-view figcaption { min-height: 31px; padding-inline: 7px; }
  .diagnostic-view figcaption span { display: none; }
  .diagnostic-canvas-shell { height: 100px; }
  .diagnostic-view > p { padding-inline: 6px; font-size: 10px; }
  .viewport-foot { align-items: flex-start; flex-direction: column; gap: 5px; }
  .legend { justify-content: flex-start; }
  .panel-heading { align-items: flex-start; }
  .sequence-tools { align-items: flex-end; flex-direction: column; }
  .compact-heading { flex-direction: column; }
  .compact-heading .run-action { width: 100%; min-width: 0; }
  .facecut-body { grid-template-columns: 1fr; }
  .facecut-diagram canvas { height: clamp(250px, 72vw, 330px); }
  .keyframe-track { display: flex; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x mandatory; }
  .keyframe { min-width: 158px; scroll-snap-align: start; }
  .inspector { grid-template-columns: 1fr; }
  .active-frame,
  .event-section { grid-column: auto; }
  .inspector-section { border-right: 0; }
  .notes-heading { grid-template-columns: 1fr; }
  .note-grid { grid-template-columns: 1fr; }
  .note-grid article { min-height: 0; }
  .note-grid h3 { margin-top: 25px; }
  footer { grid-template-columns: 1fr; gap: 16px; }
  footer nav { grid-column: auto; }
}

@media (max-width: 410px) {
  .header-link { display: none; }
  .system-state { display: flex; }
  .viewport-toolbar { grid-template-columns: 1fr; }
  .mode-switch { justify-self: stretch; }
  .mode-button { flex: 1 1 0; }
  .camera-controls { grid-column: auto; }
  .viewport { min-height: 400px; }
  .cut-plan-heading { align-items: flex-start; }
  .cut-plan-legend { gap: 7px; }
  .instrument-readouts { grid-template-columns: 1fr 78px; }
  .scene-hud-right { grid-column: 1 / -1; grid-row: 2; }
  .scene-hud-left { grid-column: 1; grid-row: 1; }
  .axis-glyph { grid-column: 2; grid-row: 1; }
  .vector-guide { grid-template-columns: 100px minmax(0, 1fr) 100px; }
  .viewport-control-dock { grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); }
  .dock-heading { margin-bottom: 6px; }
  .dock-action-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .dock-action-grid .dock-reset { grid-column: auto; min-height: 42px; }
  .diagnostic-canvas-shell { height: 86px; }
  .diagnostic-axis { right: 4px; bottom: 4px; font-size: 8px; }
  .diagnostic-view > p { display: none; }
  .phase-badge { position: static; }
  .panel-heading { flex-direction: column; }
  .sequence-tools { width: 100%; align-items: stretch; flex-direction: row; justify-content: space-between; }
  .sample-action { min-width: 0; }
  .pose-actions,
  .physics-actions { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}