/* Hallmark · genre: atmospheric · macrostructure: Map / Diagram · hero: H9 custom illustration (Tier B SVG instrument) · nav: N10 · footer: Ft5
 * theme: custom · vibe: "observatory void, bone light, ember signal" · paper: oklch(13% 0.008 65) · accent: oklch(72% 0.14 50)
 * display: Geist 200 · body: Geist 400 · mono: Geist Mono · axes: dark / geometric-sans / warm
 * motion: load reveal · scroll-linked orbit + drift (≥40rem) · readout crossfade · studied: no · context: user + inferred
 */
/* home sections only — tokens.css + site.css load first */

/* ---------- hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-xl) var(--page-pad) var(--space-2xl);
  view-timeline-name: --hero;
}
.hero::before {
  /* bloom 1 — behind the instrument */
  content: "";
  position: absolute;
  z-index: -2;
  inset: -10% -10% 30% 30%;
  background: radial-gradient(closest-side, var(--color-glow), transparent 72%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  z-index: -1;
  inset: auto 0 0 0;
  height: 42%;
  overflow: hidden;
  perspective: 480px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to top, black 10%, transparent 92%);
  mask-image: linear-gradient(to top, black 10%, transparent 92%);
}
.hero-grid::before {
  content: "";
  position: absolute;
  inset: 0 -60% -40% -60%;
  background-image: linear-gradient(var(--color-grid) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  transform-origin: 50% 0%;
  transform: rotateX(72deg);
  opacity: 0.55;
}
.hero-grid::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.35;
}
.stage {
  position: relative;
  order: -1;
  justify-self: center;
  width: min(74%, 22rem);
  margin-block: var(--space-lg) var(--space-xs);
}
.stage picture { position: relative; z-index: 1; }
.aperture-mark { width: 100%; height: auto; }
.stage__orbits {
  position: absolute;
  z-index: 0;
  left: 50.8%;
  top: 48.7%;
  width: 172%;
  height: auto;
  aspect-ratio: 1;
  translate: -50% -50%;
  overflow: visible;
  pointer-events: none;
}
.orb { transform-box: view-box; transform-origin: 50% 50%; }
.orb circle, .orb path, .orb line { fill: none; stroke: var(--color-rule); stroke-width: 1; vector-effect: non-scaling-stroke; }
.orb--crosshair path { stroke: var(--color-rule-2); }
.orb--c line { stroke: var(--color-grid); }
.orb .orb__node { fill: var(--color-ink-2); stroke: none; }
.orb .orb__node--lit { fill: var(--color-accent); }
.orb--a { transform: rotate(calc(var(--spin) * 1.6)); }
.orb--b { transform: rotate(calc(var(--spin) * -1)); }
.orb--c { transform: rotate(calc(var(--spin) * 0.45)); }

.hero__copy { display: grid; gap: var(--space-lg); min-width: 0; }
.hero__kicker {
  color: var(--color-muted);
  font: 500 var(--text-2xs)/1.2 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero__title {
  font: 200 var(--text-display)/1.02 var(--font-display);
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.hero__moves, .hero__remains { display: block; }
.hero__moves-inner { display: inline-block; }
.hero__remains { color: var(--color-ink-2); }
.hero__remains::after {
  /* the reference: a fixed accent tick */
  content: "";
  display: inline-block;
  width: 0.14em;
  height: 0.14em;
  margin-inline-start: 0.12em;
  border-radius: 50%;
  background: var(--color-accent);
  vertical-align: 0.12em;
}
.hero__lede { max-width: 54ch; color: var(--color-ink-2); font-size: var(--text-md); line-height: 1.55; }
.doors { display: grid; border-bottom: 1px solid var(--color-rule); }
.door {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  grid-template-areas: "glyph label arrow" "glyph text arrow";
  column-gap: var(--space-md);
  row-gap: var(--space-3xs);
  align-items: center;
  padding: var(--space-md) var(--space-2xs);
  border-top: 1px solid var(--color-rule);
  text-decoration: none;
}
.door__glyph { grid-area: glyph; width: 40px; height: 40px; color: var(--color-ink-2); stroke-width: 1.15; transition: color var(--dur-short) var(--ease-out); }
.door__label { grid-area: label; color: var(--color-muted); font: 500 var(--text-2xs)/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; }
.door__text { grid-area: text; font-size: var(--text-md); line-height: 1.3; }
.door__arrow { grid-area: arrow; color: var(--color-muted); font-size: var(--text-md); transition: transform var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out); }
@media (hover: hover) {
  .door:hover .door__glyph, .door:hover .door__arrow { color: var(--color-accent); }
  .door:hover .door__arrow { transform: translateX(4px); }
}
.hero__foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xs) var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-rule-2);
  color: var(--color-muted);
  font: 400 var(--text-xs)/1.4 var(--font-mono);
  letter-spacing: 0.04em;
}
.hero__foot a { color: var(--color-ink-2); text-decoration: none; white-space: nowrap; }
.hero__foot a:hover { color: var(--color-accent); }

@media (min-width: 60rem) {
  .hero {
    grid-template-columns: minmax(0, 8fr) minmax(0, 5fr);
    grid-template-areas: "copy stage" "foot foot";
    column-gap: var(--space-2xl);
    align-items: center;
  }
  .hero__copy { grid-area: copy; }
  .stage { grid-area: stage; order: 0; width: min(100%, 30rem); margin: 0; }
  .hero__foot { grid-area: foot; }
  .doors { max-width: 40rem; }
}

/* ---------- method ---------- */
.method {
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-3xl) var(--page-pad);
  border-top: 1px solid var(--color-rule-2);
}
.method__mark { width: min(44vw, 14rem); }
.method__zero { width: 100%; height: auto; overflow: visible; }
.method__zero path { fill: none; }
.mz__frame { stroke: var(--color-muted); stroke-width: 1; vector-effect: non-scaling-stroke; }
.mz__ring { stroke: var(--color-ink); stroke-width: 3.2; stroke-linecap: round; }
.mz__highway { stroke: var(--color-accent); stroke-width: 2.9; stroke-dasharray: 7.2 7.2; stroke-dashoffset: 0; }
.mz__highway.is-revealed { animation: passage 4800ms linear 1 both; }
@keyframes passage { to { stroke-dashoffset: -57.6; } }
.method__copy { display: grid; gap: var(--space-lg); min-width: 0; }
.method h2 { font: 200 var(--text-2xl)/1.08 var(--font-display); letter-spacing: -0.03em; overflow-wrap: anywhere; }
.method h2 span { display: block; color: var(--color-ink-2); }
.method__lines { display: grid; gap: var(--space-2xs); font-size: var(--text-md); color: var(--color-muted); }
.method__lines li::before { content: "— "; color: var(--color-muted); }
.method__lines .lit { color: var(--color-ink); }
.method__lines .lit::before { content: "● "; color: var(--color-accent); font-size: 0.7em; vertical-align: 0.15em; }
.method__doctrine { max-width: 34ch; font-size: var(--text-lg); line-height: 1.4; }
.method__prose { display: grid; gap: var(--space-md); max-width: 60ch; color: var(--color-ink-2); }
@media (min-width: 60rem) {
  .method { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); column-gap: var(--space-2xl); align-items: start; }
  .method__mark { width: 100%; max-width: 22rem; position: sticky; top: 120px; }
}

/* ---------- evidence · orbital map ---------- */
.evidence { padding: var(--space-3xl) var(--page-pad); border-top: 1px solid var(--color-rule-2); }
.evidence__head { display: grid; gap: var(--space-sm); max-width: 44rem; }
.evidence__head h2 { font: 200 var(--text-2xl)/1.05 var(--font-display); letter-spacing: -0.03em; }
.evidence__head p { color: var(--color-ink-2); font-size: var(--text-md); }

.map { position: relative; margin-top: var(--space-xl); }
.map__rings, .map__core, .map__readout { display: none; }
.map__group { margin-top: var(--space-xl); }
.map__legend h3 {
  display: flex;
  align-items: center;
  gap: 0.6em;
  color: var(--color-ink);
  font: 500 var(--text-xs)/1.3 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.map__legend p { max-width: 52ch; margin-top: var(--space-2xs); color: var(--color-muted); font-size: var(--text-sm); }
.legend-swatch { width: 22px; height: 0; border-top: 1px solid var(--color-ink-2); }
.legend-swatch--outer { border-top-style: dashed; }
.legend-swatch--inner-a, .legend-swatch--inner-b { border-top-style: dotted; border-top-width: 2px; }
.ring { margin-top: var(--space-md); border-top: 1px solid var(--color-rule-2); }
.node__link {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-areas: "g name" "g meta";
  column-gap: var(--space-md);
  row-gap: var(--space-3xs);
  align-items: center;
  padding: var(--space-sm) var(--space-2xs);
  border-bottom: 1px solid var(--color-rule-2);
  text-decoration: none;
}
.node__glyph { grid-area: g; display: grid; place-items: center; width: 44px; height: 44px; color: var(--color-ink-2); transition: color var(--dur-short) var(--ease-out), box-shadow var(--dur-short) var(--ease-out); }
.node__glyph .glyph { width: 38px; height: 38px; }
.node__name { grid-area: name; font-size: var(--text-md); font-weight: 500; line-height: 1.25; }
.node__meta { grid-area: meta; display: flex; flex-wrap: wrap; gap: 0.15em 0.9em; color: var(--color-muted); font-size: var(--text-sm); line-height: 1.4; }
.node__status { font: 400 var(--text-2xs)/1.6 var(--font-mono); letter-spacing: 0.02em; }
.node__evidence { display: none; }
@media (hover: hover) {
  .node__link:hover .node__glyph { color: var(--color-accent); }
}

@media (min-width: 62rem) {
  .map {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    grid-template-rows: repeat(4, auto) 1fr;
    column-gap: var(--space-2xl);
    align-items: start;
    animation: map-spin linear both;
    animation-timeline: view();
    animation-range: cover 0% cover 100%;
    animation-play-state: paused;
  }
  .map__rings { display: block; grid-column: 1; grid-row: 1 / -1; width: 100%; height: auto; aspect-ratio: 1; overflow: visible; }
  .map__rings * { fill: none; vector-effect: non-scaling-stroke; }
  .map__cross { stroke: var(--color-rule-2); stroke-width: 1; }
  .map__ring { stroke: var(--color-rule); stroke-width: 1; }
  .map__ring--outer { stroke-dasharray: 3 7; }
  .map__ring--inner { stroke-dasharray: 1 5; stroke-width: 2; stroke-linecap: round; }
  .map__ticks { stroke: var(--color-grid); stroke-width: 1; transform-box: view-box; transform-origin: 50% 50%; transform: rotate(calc(var(--spin) * -0.6)); }
  .map__core {
    display: grid;
    place-items: center;
    grid-column: 1;
    grid-row: 1 / -1;
    width: 100%;
    aspect-ratio: 1;
    pointer-events: none;
  }
  .map__core-glyph { width: 11%; height: auto; aspect-ratio: 1; color: var(--color-ink); stroke-width: 1.25; --glyph-accent: var(--color-accent); }
  .map__group { display: contents; }
  .map__legend { grid-column: 2; margin-bottom: var(--space-lg); }
  .ring {
    position: relative;
    grid-column: 1;
    grid-row: 1 / -1;
    align-self: start;
    width: 100%;
    aspect-ratio: 1;
    margin: 0;
    border: 0;
    container-type: inline-size;
    pointer-events: none;
  }
  .ring--mid { --r: 32cqi; --step: 40deg; --off: -70deg; }
  .ring--outer { --r: 46cqi; --step: 80deg; --off: -90deg; }
  .ring--inner-a { --r: 17cqi; --step: 0deg; --off: -90deg; }
  .ring--inner-b { --r: 17cqi; --step: 0deg; --off: 90deg; }
  .node {
    /* rigid rotation: every ring turns together, so spacing never collapses */
    --a: calc(var(--i) * var(--step) + var(--off) + var(--spin));
    position: absolute;
    left: 50%;
    top: 50%;
    transform-origin: 0 0;
    transform: rotate(var(--a)) translateX(var(--r)) rotate(calc(-1 * var(--a))) translate(-50%, -50%);
    pointer-events: auto;
  }
  .node__link {
    grid-template-columns: auto;
    grid-template-areas: "g" "name";
    justify-items: center;
    row-gap: var(--space-xs);
    padding: var(--space-2xs);
    border: 0;
    border-radius: var(--radius-card);
    text-align: center;
  }
  .node__glyph {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-paper);
    box-shadow: 0 0 0 1px var(--color-rule);
  }
  .node__glyph .glyph { width: 32px; height: 32px; }
  .node__name { font-size: 0.78rem; font-weight: 500; white-space: nowrap; color: var(--color-ink-2); }
  .node__meta { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .node.is-active .node__glyph, .node__link:focus-visible .node__glyph { color: var(--color-accent); box-shadow: 0 0 0 1px var(--color-accent), 0 0 0 6px var(--color-glow); }
  .node.is-active .node__name { color: var(--color-ink); }
  .map__readout {
    display: block;
    grid-column: 2;
    grid-row: 5;
    min-height: 22rem;
    padding: var(--space-lg);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius-card);
    background: var(--color-paper-2);
  }
}
@keyframes map-spin { from { --spin: -24deg; } to { --spin: 24deg; } }
.readout__hint { color: var(--color-muted); font-size: var(--text-sm); }
.readout__card { display: grid; gap: var(--space-xs); animation: fade var(--dur-short) var(--ease-out); }
.readout__group { color: var(--color-muted); font: 500 var(--text-2xs)/1.3 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; }
.readout__name { font: 300 var(--text-xl)/1.1 var(--font-display); letter-spacing: -0.02em; }
.readout__type { color: var(--color-ink-2); }
.readout__status { color: var(--color-muted); font: 400 var(--text-2xs)/1.6 var(--font-mono); }
.readout__evidence { position: relative; margin-block: var(--space-xs); overflow: hidden; border-radius: 10px; box-shadow: 0 0 0 1px var(--color-rule); aspect-ratio: 16 / 10; background: var(--color-paper-3); }
.readout__evidence img { width: 100%; height: 100%; object-fit: cover; }
.readout__evidence figcaption { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

/* ---------- local intelligence ---------- */
.local {
  display: grid;
  gap: var(--space-2xl);
  padding: var(--space-3xl) var(--page-pad);
  border-top: 1px solid var(--color-rule-2);
}
.local__intro { display: grid; gap: var(--space-lg); align-content: start; min-width: 0; }
.local h2 { font: 200 var(--text-display)/1 var(--font-display); letter-spacing: -0.04em; overflow-wrap: anywhere; }
.local__nvidia { display: flex; align-items: center; gap: 0.75rem; color: var(--color-ink); font: 500 var(--text-xs)/1.4 var(--font-mono); letter-spacing: 0.04em; }
.local__lede { max-width: 46ch; color: var(--color-ink-2); font-size: var(--text-md); line-height: 1.55; }
.local__intro .button { justify-self: start; }
.enclosure { display: grid; gap: var(--space-lg); min-width: 0; }
.enclosure__art { width: 100%; height: auto; overflow: visible; }
.enclosure__art * { fill: none; stroke-width: 1.4; vector-effect: non-scaling-stroke; }
.enclosure__art text { fill: var(--color-muted); stroke: none; font: 500 11px/1 var(--font-mono); letter-spacing: 0.14em; }
.enc__corner path { stroke: var(--color-ink); stroke-width: 2; stroke-linecap: square; }
.enc__graph path, .enc__graph circle { stroke: var(--color-ink-2); }
.enc__graph .enc__node { fill: var(--color-paper); stroke: var(--color-ink); stroke-width: 1.4; }
.enc__graph .enc__node--lit { fill: var(--color-accent); stroke: var(--color-accent); }
.enc__cloud path { stroke: var(--color-muted); }
.enc__cloud .enc__stop { stroke: var(--color-accent); stroke-width: 1.6; }
.enc__corner { transform-box: view-box; }
[data-reveal] .enc__corner { opacity: 0; transition: transform 900ms var(--ease-out), opacity 900ms var(--ease-out); }
[data-reveal] .enc__corner--tl { transform: translate(-34px, -34px); }
[data-reveal] .enc__corner--tr { transform: translate(34px, -34px); transition-delay: 60ms; }
[data-reveal] .enc__corner--br { transform: translate(34px, 34px); transition-delay: 120ms; }
[data-reveal] .enc__corner--bl { transform: translate(-34px, 34px); transition-delay: 180ms; }
[data-reveal].is-revealed .enc__corner { opacity: 1; transform: none; }
.enclosure__why { display: grid; gap: var(--space-2xs); color: var(--color-ink-2); font: 400 var(--text-xs)/1.5 var(--font-mono); }
.enclosure__why li::before { content: "◦ "; color: var(--color-accent); }
.local__uses { display: grid; gap: 0; border-top: 1px solid var(--color-rule); }
.local__uses li { display: grid; gap: var(--space-2xs); padding: var(--space-lg) 0; border-bottom: 1px solid var(--color-rule-2); }
.local__uses h3, .local__steps h3 { font-size: var(--text-md); font-weight: 500; line-height: 1.3; }
.local__uses p, .local__steps p { color: var(--color-ink-2); max-width: 46ch; }
.local__steps { display: grid; gap: var(--space-lg); counter-reset: none; }
/* ordinal steps: the number stacks above its heading at every width (gate 54) */
.local__steps li { position: relative; display: grid; gap: var(--space-2xs); }
.step__n { color: var(--color-accent); font: 500 var(--text-xs)/1.6 var(--font-mono); letter-spacing: 0.08em; }
@media (min-width: 42rem) {
  .local__uses { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); column-gap: var(--space-xl); }
}
@media (min-width: 62rem) {
  .local {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-areas: "intro art" "uses uses" "steps steps";
    column-gap: var(--space-2xl);
  }
  .local__intro { grid-area: intro; }
  .enclosure { grid-area: art; }
  .local__uses { grid-area: uses; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .local__uses li { padding-inline-end: var(--space-lg); border-bottom: 0; }
  .local__uses li + li { padding-inline-start: var(--space-lg); border-inline-start: 1px solid var(--color-rule-2); }
  .local__steps {
    grid-area: steps;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: var(--space-xl);
    padding-top: var(--space-xl);
    background: linear-gradient(var(--color-rule), var(--color-rule)) 0 0.55rem / 100% 1px no-repeat;
  }
  .local__steps li { padding-top: var(--space-lg); }
  .step__n { position: absolute; left: 0; top: -1.6rem; padding-inline-end: var(--space-xs); background: var(--color-paper); }
}

/* ---------- programs · T2 logo wall ---------- */
.programs { padding: var(--space-2xl) var(--page-pad) var(--space-3xl); }
.programs h2 { color: var(--color-muted); font: 500 var(--text-xs)/1.3 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; }
.programs__list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: var(--space-lg); border-top: 1px solid var(--color-rule-2); }
.programs__list li { display: grid; gap: var(--space-2xs); align-content: start; padding: var(--space-lg) var(--space-md) var(--space-lg) 0; border-bottom: 1px solid var(--color-rule-2); }
.programs__list li + li { padding-inline-start: var(--space-md); border-inline-start: 1px solid var(--color-rule-2); }
.program__logo { width: 28px; height: 28px; margin-bottom: var(--space-xs); color: var(--color-ink-2); }
.program__brand { font-weight: 500; }
.program__name { color: var(--color-muted); font: 400 var(--text-2xs)/1.5 var(--font-mono); letter-spacing: 0.02em; }
@media (min-width: 48rem) {
  .programs__list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .programs__list li { border-bottom: 0; padding-inline-start: var(--space-lg); }
  .programs__list li + li { border-inline-start: 1px solid var(--color-rule-2); }
  .programs__list li:first-child { padding-inline-start: 0; }
}

/* ---------- principles ---------- */
@property --clear { syntax: "<percentage>"; inherits: true; initial-value: 0%; }
/* See clearly: live static on the black, which clears around the mark once the section is in view */
.principles { position: relative; isolation: isolate; overflow: clip; display: grid; gap: var(--space-xl); padding: var(--space-3xl) var(--page-pad); border-top: 1px solid var(--color-rule-2); view-timeline-name: --principles; }
.principles__static {
  --clear-x: 22%;
  --clear-y: 26%;
  position: absolute;
  z-index: -1;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle at var(--clear-x) var(--clear-y), transparent var(--clear), black calc(var(--clear) + 24%));
  mask-image: radial-gradient(circle at var(--clear-x) var(--clear-y), transparent var(--clear), black calc(var(--clear) + 24%));
  transition: --clear 1800ms var(--ease-out);
}
.principles.is-revealed .principles__static { --clear: 16%; }
.principles__static::before {
  content: "";
  position: absolute;
  inset: -50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.15' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23s)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  opacity: 0.16;
  mix-blend-mode: screen;
  animation: tv-static 640ms steps(1, end) infinite;
}
.principles__static::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, var(--color-scanline) 0 1px, transparent 1px 3px);
}
@keyframes tv-static {
  0% { transform: translate(0, 0); }
  14% { transform: translate(-9%, 6%); }
  28% { transform: translate(7%, -11%); }
  42% { transform: translate(-4%, 13%); }
  57% { transform: translate(12%, 3%); }
  71% { transform: translate(-13%, -5%); }
  85% { transform: translate(5%, 9%); }
}
.principles__mark { position: relative; justify-self: center; width: min(14rem, 62vw); margin: var(--space-lg) 0; }
/* the mark, redrawn as a vector: crisp at any size, parts move on their own */
.m4 { display: block; width: 100%; height: auto; overflow: visible; animation: mark-float 7s var(--ease-in-out) infinite alternate; }
.m4 * { vector-effect: non-scaling-stroke; }
.m4__dots { fill: none; stroke: var(--color-muted); stroke-width: 1.5; stroke-dasharray: 1 7; stroke-linecap: round; }
.m4__speck { fill: var(--color-ink); }
.m4__speck--ember { fill: var(--color-accent); }
.m4__rings circle { fill: none; stroke: var(--color-ink-2); stroke-width: 1.4; }
.m4__rings circle:first-child { stroke-width: 1.8; }
.m4__arc { fill: none; stroke: var(--color-ink); stroke-width: 3.2; stroke-linecap: round; }
.m4__tick { stroke: var(--color-ink); stroke-width: 1.4; }
.m4__axis { fill: none; stroke: var(--color-ink-2); stroke-width: 1.8; }
.m4__cap circle { fill: var(--color-paper); stroke: var(--color-ink); stroke-width: 1.8; }
.m4__cap .m4__cap-dot { fill: var(--color-ink); stroke: none; }
.m4__ember { fill: var(--color-accent); filter: url(#m4-glow); }
.m4__halo { fill: none; stroke: var(--color-ink); stroke-width: 1.6; }
.m4__core { fill: var(--color-ink); filter: url(#m4-glow); }
.m4__outer, .m4__spin { transform-box: view-box; transform-origin: 50% 50%; }
.m4__outer { animation: orbit-turn 90s linear infinite; }
.m4__spin { transform: rotate(var(--spin)); }
.m4__ember { animation: ember-pulse 3.6s var(--ease-in-out) infinite alternate; }
.m4__ember--axis { animation-delay: -1.8s; }
@keyframes ember-pulse { from { opacity: 0.7; } to { opacity: 1; } }
/* the mark acquires its signal: noisy and blurred, then sharp */
.js .principles:not(.is-revealed) .principles__mark .m4 { opacity: 0.25; filter: blur(8px) contrast(1.6);  animation: unveil 0s 8s forwards; }
.principles.is-revealed .principles__mark .m4 { animation: acquire 1500ms var(--ease-out) both, mark-float 7s var(--ease-in-out) 1500ms infinite alternate; }
@keyframes acquire {
  0% { opacity: 0.25; filter: blur(8px) contrast(1.6); transform: translateX(-7px); }
  8% { transform: translateX(6px); }
  14% { opacity: 0.6; transform: translateX(-4px); }
  22% { transform: translateX(2px); }
  30% { transform: none; }
  100% { opacity: 1; filter: none; transform: none; }
}
@keyframes unveil { to { opacity: 1; filter: none; } } /* safety net: never stay blurred */
@keyframes mark-float { from { transform: translateY(4px); } to { transform: translateY(-8px); } }
@keyframes orbit-turn { to { transform: rotate(360deg); } }
@keyframes principles-spin { from { --spin: -60deg; } to { --spin: 60deg; } }
.principles__copy { display: grid; gap: var(--space-xl); }
.principles h2 { font: 200 var(--text-2xl)/1.05 var(--font-display); letter-spacing: -0.03em; }
.principles h2 span { display: block; color: var(--color-ink-2); }
.principles ol { display: grid; gap: var(--space-lg); }
.principles li { display: grid; gap: var(--space-2xs); padding-top: var(--space-md); border-top: 1px solid var(--color-rule); }
.principles strong { font-weight: 500; font-size: var(--text-md); }
.principles li p { color: var(--color-ink-2); }
@media (min-width: 62rem) {
  .principles { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); align-items: center; column-gap: var(--space-2xl); }
  .principles__mark { justify-self: center; width: 100%; max-width: 20rem; margin: var(--space-xl) 0 0 var(--space-xl); }
  .principles ol { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr) minmax(0, 0.9fr); column-gap: var(--space-xl); }
}

/* ---------- closing ---------- */
.closing {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-3xl) var(--page-pad);
  border-top: 1px solid var(--color-rule-2);
}
.closing::before {
  /* bloom 2 — the horizon */
  content: "";
  position: absolute;
  z-index: -1;
  inset: 40% 0 0 0;
  background: radial-gradient(60% 80% at 20% 100%, var(--color-glow), transparent 70%);
  pointer-events: none;
}
.closing h2 { font: 200 var(--text-display)/1 var(--font-display); letter-spacing: -0.04em; overflow-wrap: anywhere; }
.closing h2 span { color: var(--color-ink-2); }
.closing__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md) var(--space-xl); }
.closing__note { color: var(--color-muted); font: 400 var(--text-xs)/1.5 var(--font-mono); letter-spacing: 0.04em; }

/* scroll-linked: the world moves, the reference remains (pointer-fine, ≥40rem) */
@media (min-width: 40rem) and (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .stage__orbits { animation: hero-spin linear both; animation-timeline: --hero; animation-range: exit 0% exit 100%; }
    .hero__moves-inner { animation: drift linear both; animation-timeline: --hero; animation-range: exit 0% exit 90%; }
    .hero-grid::before { animation: floor linear both; animation-timeline: --hero; animation-range: exit 0% exit 100%; }
    .map { animation-play-state: running; }
    .principles__mark { animation: principles-spin linear both; animation-timeline: --principles; }
  }
}
@keyframes hero-spin { to { --spin: 140deg; } }
@keyframes drift { to { translate: 26% 0; } }
@keyframes floor { to { transform: rotateX(72deg) translateY(128px); } }

@media (prefers-reduced-motion: reduce) {
  .principles__static::before, .m4, .m4__outer, .m4__ember, .principles.is-revealed .principles__mark .m4 { animation: none !important; }
  .js .principles .principles__mark .m4 { opacity: 1 !important; filter: none !important; }
  .mz__highway.is-revealed { animation: none !important; }
  [data-reveal] .enc__corner { transform: none !important; }
}