/* ============================================================
   Ehrhart's volume conjecture — explainer
   Palette derived from engineering quadrille paper + prussian ink.
   ============================================================ */

:root {
  --paper:   #E7ECE2;
  --ink:     #0E2129;
  --lattice: #AFC1AE;
  --solid:   #12566E;
  --signal:  #B3123F;
  --wash:    #D9E2D4;

  --ink-70: color-mix(in srgb, var(--ink) 70%, var(--paper));
  --ink-50: color-mix(in srgb, var(--ink) 50%, var(--paper));
  --rule:   color-mix(in srgb, var(--lattice) 80%, var(--ink) 6%);

  /* the one global lattice metric: background dot pitch, in px.
     Figures draw one lattice unit every 3 cells, so their dots
     land exactly on the page plane's dots. */
  --cell: 22px;

  --display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --body:    "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --measure: 62ch;
  --gutter: clamp(16px, 4vw, 48px);
  --rail: 5rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(17px, 0.55rem + 0.7vw, 19px);
  line-height: 1.72;
  font-variant-numeric: oldstyle-nums proportional-nums;
  -webkit-font-smoothing: antialiased;
}

/* the page plane ------------------------------------------------ */
#plane {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.page { position: relative; z-index: 1; }

/* skip link ----------------------------------------------------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 99;
  font-family: var(--mono);
  font-size: 0.8rem;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

/* typography ---------------------------------------------------- */
h1, h2, h3, .display {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.018em;
  line-height: 1.06;
  font-variant-numeric: lining-nums tabular-nums;
}

h1 {
  font-size: clamp(2.6rem, 1.2rem + 6.2vw, 5.4rem);
  margin: 0 0 0.4em;
  text-wrap: balance;
}
h2 {
  font-size: clamp(1.6rem, 1rem + 2.2vw, 2.5rem);
  margin: 0 0 0.9rem;
  text-wrap: balance;
}
h3 {
  font-family: var(--display);
  font-size: clamp(1.12rem, 0.9rem + 0.8vw, 1.38rem);
  margin: 2.6rem 0 0.55rem;
  letter-spacing: -0.008em;
}
h4 {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-70);
  margin: 2rem 0 0.5rem;
}

p { margin: 0 0 1.1em; }
a { color: var(--solid); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--signal); }

strong { font-weight: 600; }
em { font-style: italic; }

.lede {
  font-size: clamp(1.12rem, 0.95rem + 0.75vw, 1.42rem);
  line-height: 1.5;
  color: var(--ink);
  max-width: 40ch;
}

.mono { font-family: var(--mono); font-variant-numeric: lining-nums tabular-nums; }

/* layout -------------------------------------------------------- */
.wrap {
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: 2.25rem;
  padding-block: clamp(3rem, 7vw, 6.5rem);
  border-top: 1px solid var(--rule);
}
.section > .rail {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink-50);
  padding-top: 0.55rem;
}
.section > .rail span {
  position: sticky;
  top: 1.25rem;
  display: block;
}
.col { min-width: 0; }
.col > p,
.col > ul,
.col > ol,
.col > h3,
.col > h4,
.col > .eq,
.col > .note,
.col > blockquote { max-width: var(--measure); }

@media (max-width: 860px) {
  .section { grid-template-columns: 1fr; row-gap: 0.35rem; }
  .section > .rail span { position: static; }
  :root { --rail: 0rem; }
}

/* hero ---------------------------------------------------------- */
.hero {
  padding-block: clamp(3.5rem, 9vw, 8rem) clamp(2.5rem, 5vw, 4.5rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; }
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 1.4rem;
}
.hero h1 .thin { display: block; color: var(--ink-70); }

.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.9rem; }
.btn {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-decoration: none;
  padding: 0.68rem 1.05rem;
  border: 1px solid var(--ink);
  color: var(--paper);
  background: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.btn:hover { background: var(--signal); border-color: var(--signal); color: var(--paper); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* scope card ---------------------------------------------------- */
.scope {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  backdrop-filter: blur(2px);
  padding: clamp(1.1rem, 2.5vw, 1.7rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.2rem 2rem;
}
.scope > div > .k {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 0.35rem;
}
.scope p { margin: 0; font-size: 0.95rem; line-height: 1.55; }

/* equations ----------------------------------------------------- */
.eq {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.2rem;
  align-items: center;
  gap: 0.5rem;
  margin: 1.7rem 0;
  padding: 0.2rem 0;
}
.eq > .eq__body { min-width: 0; overflow-x: auto; overflow-y: hidden; padding-block: 0.25rem; }
.eq > .eqn {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-50);
  text-align: right;
  font-variant-numeric: lining-nums;
}
.eq--plain { grid-template-columns: minmax(0, 1fr); }

.katex { font-size: 1.055em; }
.katex-display { margin: 0; }
.katex-display > .katex { white-space: normal; }
p .katex, li .katex, td .katex, .cap .katex, .readout .katex { font-size: 1.02em; }

/* tables -------------------------------------------------------- */
.tbl-wrap { overflow-x: auto; margin: 1.6rem 0; max-width: var(--measure); }
table {
  border-collapse: collapse;
  width: 100%;
  font-family: var(--mono);
  font-size: 0.86rem;
  font-variant-numeric: lining-nums tabular-nums;
}
caption {
  caption-side: bottom;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-50);
  padding-top: 0.7rem;
  line-height: 1.5;
}
th, td { padding: 0.5rem 0.9rem 0.5rem 0; text-align: left; border-bottom: 1px solid var(--rule); }
thead th {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-50);
  border-bottom-color: var(--ink);
}
/* formulas must not be uppercased: (n+1)ⁿ/n! is not (N+1)ⁿ/N! */
th .formula, td .formula { text-transform: none; letter-spacing: 0; }
.swatch { vertical-align: middle; margin-right: 0.6rem; overflow: visible; }
td .who {
  display: block;
  font-size: 0.72rem;
  color: var(--ink-50);
  margin: 0.15rem 0 0 2.2rem;
}
tbody tr:last-child td { border-bottom: 1px solid var(--ink); }
td.num { text-align: right; padding-right: 1.4rem; }
th.num { text-align: right; padding-right: 1.4rem; }
tr.is-key td { background: color-mix(in srgb, var(--signal) 8%, transparent); color: var(--signal); }

/* lists --------------------------------------------------------- */
.checks { list-style: none; padding: 0; margin: 1.4rem 0; }
.checks li {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr);
  gap: 0.7rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.checks li::before {
  content: "✓";
  font-family: var(--mono);
  color: var(--signal);
  font-size: 0.95rem;
}
.checks .sub {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-50);
  margin-top: 0.2rem;
  line-height: 1.55;
}

ul.plain { padding-left: 1.15rem; }
ul.plain li { margin-bottom: 0.7em; }

/* timeline ------------------------------------------------------ */
.timeline { margin: 1.8rem 0 0; max-width: 46rem; }
.timeline ol { list-style: none; margin: 0; padding: 0; }
.timeline li {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0 1.4rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.timeline li:first-child { border-top: 1px solid var(--ink); }
.timeline .yr {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-50);
  font-variant-numeric: lining-nums tabular-nums;
  padding-top: 0.15rem;
}
.timeline .who { font-weight: 600; }
.timeline .what { margin: 0.15rem 0 0; font-size: 0.97rem; line-height: 1.55; }
.timeline .bound {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-50);
  margin-top: 0.3rem;
  display: block;
}
.timeline li.is-now { border-bottom: 1px solid var(--ink); }
.timeline li.is-now .yr { color: var(--signal); }
.timeline li.is-now .who { color: var(--signal); }
@media (max-width: 560px) {
  .timeline li { grid-template-columns: 1fr; }
  .timeline .yr { padding-bottom: 0.3rem; }
}

/* moves --------------------------------------------------------- */
.move { border-top: 1px solid var(--rule); padding-top: 1.7rem; margin-top: 2.6rem; }
.move:first-of-type { border-top: 1px solid var(--ink); }
.move__no {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 0.5rem;
}
.move h3 { margin-top: 0; }
.move > p, .move > ul, .move > ol { max-width: var(--measure); }
.move .plain-version {
  border-left: 2px solid var(--lattice);
  padding-left: 1.05rem;
  color: var(--ink-70);
  font-size: 0.97rem;
  max-width: var(--measure);
  margin: 1.1rem 0;
}
.move .plain-version .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-50);
  display: block;
  margin-bottom: 0.2rem;
}
.hinge {
  border: 1px solid var(--signal);
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
  max-width: var(--measure);
  background: color-mix(in srgb, var(--signal) 5%, transparent);
}
.hinge .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 0.35rem;
}
.hinge p { margin: 0; font-size: 0.97rem; line-height: 1.6; }

/* figures ------------------------------------------------------- */
.figure {
  margin: 2.4rem 0;
  max-width: var(--measure);
}
.figure--wide { max-width: none; }
.figure--bleed { max-width: none; }
@media (min-width: 861px) {
  .figure--wide { margin-inline: 0 calc(-1 * var(--rail) / 2); }
  .figure--bleed { margin-left: calc(-1 * var(--rail) - 2.25rem); }
}

.figure__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.5rem;
  margin-bottom: 0.9rem;
}
.figure__id {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: var(--ink);
  padding: 0.15rem 0.42rem;
}
.figure__title {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-70);
}
.figure figcaption {
  font-family: var(--mono);
  font-size: 0.775rem;
  line-height: 1.6;
  color: var(--ink-70);
  margin-top: 0.85rem;
  max-width: 68ch;
}
.figure figcaption b { color: var(--ink); font-weight: 500; }

.stage {
  position: relative;
  width: 100%;
}
.stage svg { display: block; width: 100%; height: auto; overflow: visible; }
.stage canvas { display: block; width: 100%; }

/* the shared drawing language for all figures */
.lat-dot        { fill: var(--lattice); }
.lat-dot--out   { fill: var(--lattice); }
.lat-dot--bdy   { fill: none; stroke: var(--solid); stroke-width: 1.4; }
.lat-dot--in    { fill: var(--signal); }
.body-fill      { fill: var(--solid); fill-opacity: 0.12; }
.body-stroke    { fill: none; stroke: var(--solid); stroke-width: 2; stroke-linejoin: round; }
.axis-line      { stroke: var(--ink); stroke-width: 1; }
.grid-line      { stroke: var(--rule); stroke-width: 1; }
.tick-txt       { font-family: var(--mono); font-size: 11px; fill: var(--ink-50); font-variant-numeric: lining-nums tabular-nums; }
.mark-txt       { font-family: var(--mono); font-size: 12px; fill: var(--ink); font-variant-numeric: lining-nums tabular-nums; }
.mark-txt--sig  { fill: var(--signal); }
.lead-line      { stroke: var(--ink-50); stroke-width: 1; stroke-dasharray: 2 3; }

.handle .knob {
  fill: var(--paper);
  stroke: var(--solid);
  stroke-width: 2;
}
.handle:hover .knob { stroke-width: 3; }
.handle:focus-visible .knob { stroke: var(--signal); stroke-width: 3; }

.invalid .body-stroke { stroke: var(--signal); }
.invalid .body-fill   { fill: var(--signal); fill-opacity: 0.10; }

/* figure controls ----------------------------------------------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  align-items: center;
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule);
}
.ctl { display: flex; align-items: center; gap: 0.55rem; flex: 1 1 210px; min-width: 0; }
.ctl label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--ink-70);
  white-space: nowrap;
}
.ctl output {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink);
  min-width: 3.6rem;
  font-variant-numeric: lining-nums tabular-nums;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 90px;
  min-width: 80px;
  height: 22px;
  background: transparent;
  cursor: pointer;
  margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 2px; background: var(--ink-50);
}
input[type="range"]::-moz-range-track { height: 2px; background: var(--ink-50); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px; height: 15px; margin-top: -6.5px;
  background: var(--paper);
  border: 2px solid var(--solid);
  border-radius: 50%;
}
input[type="range"]::-moz-range-thumb {
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--solid);
}
input[type="range"]:focus-visible::-webkit-slider-thumb { border-color: var(--signal); }
input[type="range"]:focus-visible::-moz-range-thumb { border-color: var(--signal); }

.presets { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-70);
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
}

/* live readouts -------------------------------------------------- */
.readout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.9rem 1.4rem;
  font-family: var(--mono);
  border-top: 1px solid var(--rule);
  padding-top: 0.9rem;
  margin-top: 0.9rem;
}
/* Deliberately not uppercased: these labels carry formulas, and
   "c_K = (n! vol)^(1/n)" must not become "(N! VOL)^(1/N)". */
.readout .k {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-50);
  margin-bottom: 0.25rem;
  min-height: 2.1em;
}
.readout .v {
  font-size: 1.32rem;
  font-weight: 500;
  font-variant-numeric: lining-nums tabular-nums;
  line-height: 1.1;
  display: block;
}
.readout .v.bad { color: var(--signal); }
.readout .v.good { color: var(--solid); }
.readout .u { font-size: 0.72rem; color: var(--ink-50); display: block; margin-top: 0.2rem; }

.verdict {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.8rem;
  margin-top: 0.9rem;
  border: 1px solid var(--solid);
  color: var(--solid);
}
.verdict.bad { border-color: var(--signal); color: var(--signal); background: color-mix(in srgb, var(--signal) 6%, transparent); }

/* side-by-side (F3) --------------------------------------------- */
.duo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.6rem;
  align-items: start;
}
.duo__panel > h5 {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-70);
  margin: 0 0 0.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--rule);
}
.duo__panel .fact {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-70);
  margin-top: 0.6rem;
  line-height: 1.55;
}
.duo__panel .fact b { color: var(--ink); font-weight: 500; }

/* split figure (F4) --------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.6rem;
  align-items: center;
}
.split--stage-first { grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr); }
@media (max-width: 700px) {
  .split, .split--stage-first { grid-template-columns: 1fr; }
}

/* references ---------------------------------------------------- */
.refs { list-style: none; padding: 0; margin: 1.4rem 0 0; max-width: 52rem; }
.refs li {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0 1.2rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.94rem;
  line-height: 1.55;
}
.refs .tagno {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-50);
  padding-top: 0.18rem;
}
.refs cite { font-style: italic; }
@media (max-width: 560px) { .refs li { grid-template-columns: 1fr; gap: 0.2rem; } }

.preprint {
  border: 1px solid var(--ink);
  padding: clamp(1.2rem, 3vw, 1.9rem);
  margin: 2rem 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.2rem;
  align-items: center;
  max-width: 52rem;
  background: color-mix(in srgb, var(--paper) 80%, transparent);
}
@media (max-width: 620px) { .preprint { grid-template-columns: 1fr; } }
.preprint h3 { margin: 0 0 0.35rem; }
.preprint p { margin: 0; font-size: 0.93rem; color: var(--ink-70); }

/* tally --------------------------------------------------------- */
.tally {
  border-top: 1px solid var(--ink);
  padding-block: clamp(2.2rem, 5vw, 3.4rem) clamp(3rem, 7vw, 5rem);
}
.tally[hidden] { display: none; }

.tally__count > .k {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 0.3rem;
}
.tally__num {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.2rem, 1.2rem + 3.4vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: lining-nums tabular-nums;
  margin: 0;
}

/* notes --------------------------------------------------------- */
.note {
  font-size: 0.93rem;
  color: var(--ink-70);
  border-left: 2px solid var(--rule);
  padding-left: 1rem;
  margin: 1.4rem 0;
}

/* visually hidden ------------------------------------------------ */
.vh {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* reveal orchestration ------------------------------------------- */
.reveal { opacity: 0; transform: translateY(10px) scale(0.994); }
.reveal.in {
  opacity: 1;
  transform: none;
  transition: opacity 620ms cubic-bezier(.22,.61,.36,1),
              transform 620ms cubic-bezier(.22,.61,.36,1);
  transition-delay: var(--d, 0ms);
}
.boot .hero__col,
.boot .hero__fig { opacity: 0; }
.booted .hero__col { animation: rise 700ms cubic-bezier(.22,.61,.36,1) 120ms both; }
.booted .hero__fig { animation: rise 780ms cubic-bezier(.22,.61,.36,1) 300ms both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .boot .hero__col, .boot .hero__fig,
  .booted .hero__col, .booted .hero__fig { opacity: 1; animation: none; }
  * { scroll-behavior: auto !important; }
}