:root {
  color-scheme: light;
  --canvas: #f3efe6;
  --canvas-light: #faf7f0;
  --paper: #eee8dc;
  --paper-deep: #d8d0c1;
  --ink: #151713;
  --ink-soft: #41453f;
  --ink-muted: #646861;
  --hairline: #c9c1b3;
  --hairline-soft: #ded7ca;
  --mineral: #214c39;
  --mineral-bright: #326a50;
  --amber: #bb7816;
  --amber-text: #8f5600;
  --slate: #606561;
  --breaking: #9c4d3d;
  --focus: #0c5f94;
  --paper-translucent: rgba(250, 247, 240, 0.78);
  --paper-faint: rgba(250, 247, 240, 0.38);
  --ink-faint: rgba(21, 23, 19, 0.08);
  --mineral-faint: rgba(33, 76, 57, 0.12);
  --amber-faint: rgba(187, 120, 22, 0.14);
  --shadow-paper: 0 1.75rem 4rem rgba(56, 48, 36, 0.14);
  --shadow-surface: 0 1rem 2.5rem rgba(56, 48, 36, 0.12), inset 0 1px rgba(250, 247, 240, 0.82);
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
  --font-body: "Avenir Next", Avenir, "Segoe UI", system-ui, sans-serif;
  --font-mono: SFMono-Regular, "Cascadia Code", "Roboto Mono", monospace;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --content: min(90rem, calc(100% - 2 * var(--gutter)));
  --motion-micro: 160ms cubic-bezier(.22, .75, .2, 1);
  --motion-standard: 280ms cubic-bezier(.22, .75, .2, 1);
  --motion-emphasis: 560ms cubic-bezier(.16, 1, .3, 1);
}

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

html {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-width: 20rem;
  background:
    radial-gradient(circle at 72% 8%, var(--paper-faint), transparent 38rem),
    radial-gradient(circle at 10% 80%, var(--amber-faint), transparent 42rem),
    var(--canvas);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.65;
}

body::before {
  position: fixed;
  z-index: 10;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--ink);
  color: var(--canvas-light);
  transform: translateY(-200%);
}

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

.shell {
  width: var(--content);
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--hairline-soft);
}

.nav {
  display: flex;
  min-height: 5.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.wordmark {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2vw, 2rem);
  letter-spacing: 0.08em;
  line-height: 1;
  text-decoration: none;
}

.wordmark::after {
  position: absolute;
  width: 0;
  height: 1px;
  margin-top: 2.25rem;
  background: var(--mineral);
  content: "";
  transition: width var(--motion-micro);
}

.wordmark:hover::after {
  width: 3rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 3rem);
}

.nav-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-links a::after {
  width: 0;
  height: 1px;
  margin-top: 1.75rem;
  background: var(--mineral);
  content: "";
  transition: width var(--motion-micro);
}

.nav-links a:hover::after {
  width: 1.5rem;
}

.action {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border: 0;
  background: var(--mineral);
  color: var(--canvas-light);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color var(--motion-micro);
}

.action:hover {
  background: var(--mineral-bright);
}

.action svg {
  width: 1.2rem;
  transition: transform var(--motion-micro);
}

.action:hover svg {
  transform: translateX(3px);
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-bottom: 1px solid var(--amber);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 0 var(--space-6);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow::after {
  width: 2.5rem;
  height: 2px;
  background: var(--amber);
  content: "";
}

.display,
.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  text-wrap: balance;
}

.display {
  max-width: 11ch;
  font-size: clamp(3.5rem, 7.4vw, 7.6rem);
  letter-spacing: -0.045em;
  line-height: 0.91;
}

.section-title {
  max-width: 12ch;
  font-size: clamp(2.8rem, 5.6vw, 5.8rem);
  letter-spacing: -0.04em;
  line-height: 0.96;
}

.lead {
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  letter-spacing: -0.01em;
  line-height: 1.55;
}

.artifact {
  position: relative;
  min-height: 31rem;
  perspective: 70rem;
  color: var(--mineral);
}

.surface-layer {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(31rem, 78vw);
  aspect-ratio: 1.28;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 18% 7% 16% 8% / 12% 16% 8% 15%;
  background:
    radial-gradient(circle at 72% 28%, var(--paper-translucent), transparent 36%),
    linear-gradient(145deg, var(--paper-translucent), var(--paper-faint));
  box-shadow: var(--shadow-surface);
  transform: translate(-42%, -54%) rotateX(62deg) rotateZ(-7deg) translateZ(calc(var(--layer) * 2.75rem));
  transform-style: preserve-3d;
  animation: artifact-settle var(--motion-emphasis) both;
  animation-delay: calc(var(--layer) * 70ms);
}

.surface-layer svg {
  width: 100%;
  height: 100%;
  opacity: calc(0.38 + var(--layer) * 0.12);
}

.surface-layer path,
.surface-layer circle {
  vector-effect: non-scaling-stroke;
}

.surface-layer .contour {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1;
}

.surface-layer .trace {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.surface-layer .node {
  fill: var(--canvas-light);
  stroke: currentColor;
  stroke-width: 2;
}

.surface-version {
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.receipt {
  position: relative;
  width: min(100%, 38rem);
  padding: clamp(1.5rem, 4vw, 3.5rem);
  background:
    linear-gradient(110deg, var(--canvas-light), var(--paper));
  box-shadow: var(--shadow-paper);
}

.receipt::before,
.partner-note::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(var(--ink-faint) 0.55px, transparent 0.55px);
  background-size: 4px 4px;
  content: "";
  opacity: 0.35;
}

.receipt-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.verdict-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.verdict-row {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  align-items: center;
  min-height: 4.25rem;
  border-top: 1px dashed var(--hairline);
}

.verdict-row:last-child {
  border-bottom: 1px dashed var(--hairline);
}

.verdict-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--font-mono);
}

.verdict-row strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
}

.verdict-row small {
  display: block;
  color: var(--ink-muted);
}

.verdict-safe { color: var(--mineral); }
.verdict-caution { color: var(--amber-text); }
.verdict-unknown { color: var(--slate); }
.verdict-breaking { color: var(--breaking); }

.evidence {
  margin-top: var(--space-6);
  border-bottom: 1px solid var(--hairline);
}

.evidence summary {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}

.evidence summary::-webkit-details-marker {
  display: none;
}

.evidence summary::after {
  width: 0.65rem;
  height: 0.65rem;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  content: "";
  transform: rotate(45deg);
  transition: transform var(--motion-standard);
}

.evidence[open] summary::after {
  transform: rotate(225deg);
}

.evidence p {
  margin: 0;
  padding: 0 0 var(--space-4);
  color: var(--ink-muted);
}

.lineage {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding-top: var(--space-12);
}

.lineage::before {
  position: absolute;
  top: 1.65rem;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--hairline);
  content: "";
}

.release {
  position: relative;
  min-width: 0;
}

.release::before {
  position: absolute;
  top: -2rem;
  left: var(--space-4);
  width: 0.65rem;
  height: 0.65rem;
  border: 1px solid var(--mineral);
  border-radius: 50%;
  background: var(--canvas);
  content: "";
}

.release-meta {
  margin-bottom: var(--space-3);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.release-surface {
  position: relative;
  aspect-ratio: 0.78;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 1.5rem 0.35rem 1.25rem 0.5rem;
  background:
    repeating-radial-gradient(circle at 20% 95%, transparent 0 1.65rem, var(--hairline-soft) 1.7rem 1.76rem),
    linear-gradient(145deg, var(--canvas-light), var(--paper));
  box-shadow: var(--shadow-surface);
}

.release-surface svg {
  position: absolute;
  inset: 10%;
  width: 80%;
  height: 80%;
  color: var(--mineral);
}

.release-change {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.release-change::before {
  width: 0.6rem;
  height: 0.6rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
}

.rhiza {
  position: relative;
  display: grid;
  grid-template-columns: minmax(15rem, 0.8fr) minmax(24rem, 1.4fr) minmax(18rem, 0.9fr);
  gap: var(--space-8);
  align-items: center;
}

.rhiza-source {
  position: relative;
  display: grid;
  width: 13rem;
  aspect-ratio: 1;
  place-items: center;
  margin-inline: auto;
}

.rhiza-source::before,
.rhiza-source::after {
  position: absolute;
  width: 7.5rem;
  aspect-ratio: 1.25;
  border: 1px solid var(--hairline);
  border-radius: 1.25rem 0.4rem 1.1rem 0.55rem;
  background: var(--paper-translucent);
  box-shadow: var(--shadow-surface);
  content: "";
  transform: rotate(12deg) translate(0.75rem, -0.5rem);
}

.rhiza-source::after {
  transform: rotate(-7deg) translate(-0.65rem, 0.7rem);
}

.rhiza-source span {
  position: relative;
  z-index: 2;
  color: var(--mineral);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.rhiza-lines {
  width: 100%;
  min-height: 30rem;
  color: var(--mineral);
}

.rhiza-lines .branch {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.rhiza-lines .branch-accent {
  stroke: var(--amber);
}

.rhiza-lines circle {
  fill: var(--canvas-light);
  stroke: currentColor;
  stroke-width: 1.5;
}

.surface-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.surface-list li {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--hairline);
}

.surface-list span {
  color: var(--amber-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.surface-list strong {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.15;
}

.partner-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.partner-note {
  position: relative;
  min-height: 19rem;
  padding: var(--space-8) var(--space-6);
  background: linear-gradient(125deg, var(--canvas-light), var(--paper));
  box-shadow: var(--shadow-paper);
}

.partner-note:nth-child(1) { transform: translateY(1.75rem) rotate(-1.2deg); }
.partner-note:nth-child(2) { transform: rotate(0.75deg); }
.partner-note:nth-child(3) { transform: translateY(2.5rem) rotate(-0.4deg); }

.partner-note span {
  position: relative;
  color: var(--amber-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.partner-note h3 {
  position: relative;
  margin: var(--space-8) 0 var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.35rem);
  font-weight: 400;
  line-height: 1.06;
}

.partner-note p {
  position: relative;
  color: var(--ink-soft);
}

.showcase-main {
  width: var(--content);
  margin-inline: auto;
  padding: var(--space-20) 0 var(--space-32);
}

.showcase-intro {
  max-width: 54rem;
  margin-bottom: var(--space-20);
}

.showcase-section {
  padding: var(--space-20) 0;
  border-top: 1px solid var(--hairline);
}

.showcase-section > h2 {
  margin: 0 0 var(--space-10);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
}

.showcase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
}

.showcase-actions > * {
  flex: 0 0 auto;
}

.hero,
.story-section,
.closing {
  position: relative;
  overflow: clip;
}

.hero {
  min-height: calc(100svh - 5.75rem);
  padding: clamp(4.5rem, 9vw, 9rem) 0 var(--space-24);
}

.hero-grid,
.decision-grid,
.archive-intro,
.partner-intro,
.closing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.82fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero .lead {
  margin: var(--space-8) 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  margin-top: var(--space-10);
}

.hero-artifact {
  min-height: 40rem;
}

.hero-artifact .surface-layer {
  width: min(42rem, 84vw);
}

.hero-artifact .surface-layer:nth-child(1) {
  filter: saturate(0.75);
  opacity: 0.62;
}

.hero-artifact .surface-layer:nth-child(2) {
  margin: 0.8rem 0 0 -0.7rem;
}

.hero-artifact .surface-layer:nth-child(3) {
  margin: -0.3rem 0 0 0.9rem;
}

.story-section {
  padding: clamp(6rem, 12vw, 11rem) 0;
  border-top: 1px solid var(--hairline);
}

.story-section .lead {
  margin: var(--space-8) 0 0;
}

.decision-copy {
  align-self: start;
  padding-top: var(--space-10);
}

.decision-copy .quiet-note {
  max-width: 34rem;
  margin: var(--space-10) 0 0;
  padding: var(--space-6) 0 var(--space-6) var(--space-6);
  border-left: 2px solid var(--amber);
  color: var(--ink-soft);
}

.decision-receipt {
  justify-self: end;
}

.archive-intro {
  align-items: end;
}

.archive-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 var(--space-8);
  margin: 0;
  padding: 0;
  list-style: none;
}

.archive-list li {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
}

.archive-list code {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--amber-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.archive-lineage {
  margin-top: var(--space-20);
}

.lineage-trace {
  position: absolute;
  z-index: 3;
  top: 8.5rem;
  right: 1rem;
  left: 1rem;
  width: calc(100% - 2rem);
  height: 12rem;
  overflow: visible;
  color: var(--mineral);
  filter: drop-shadow(0 0.35rem 0.6rem rgba(33, 76, 57, 0.1));
  pointer-events: none;
}

.lineage-trace path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  vector-effect: non-scaling-stroke;
}

.lineage-trace circle {
  fill: var(--canvas-light);
  stroke: currentColor;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.archive-lineage .release:nth-child(2) {
  transform: translateY(var(--space-6));
}

.archive-lineage .release:nth-child(4) {
  transform: translateY(var(--space-10));
}

.horizon-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-10);
  margin-bottom: var(--space-20);
}

#horizon .rhiza {
  margin-top: var(--space-12);
}

#horizon .surface-list p {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
  line-height: 1.5;
}

.horizon-intro .lead {
  max-width: 31rem;
}

.horizon-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: horizon;
}

.horizon-item {
  display: grid;
  grid-template-columns: 4rem minmax(13rem, 0.65fr) minmax(17rem, 1fr);
  gap: var(--space-8);
  align-items: baseline;
  padding: var(--space-8) 0;
  border-top: 1px solid var(--hairline);
  counter-increment: horizon;
}

.horizon-item:last-child {
  border-bottom: 1px solid var(--hairline);
}

.horizon-item::before {
  color: var(--amber-text);
  content: "L" counter(horizon, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.horizon-item:first-child::before {
  content: "L0";
}

.horizon-item:nth-child(2)::before {
  content: "L1";
}

.horizon-item:nth-child(3)::before {
  content: "L2";
}

.horizon-item:nth-child(4)::before {
  content: "L3";
}

.horizon-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.8vw, 2.5rem);
  font-weight: 400;
  line-height: 1.05;
}

.horizon-item p {
  max-width: 40rem;
  margin: 0;
  color: var(--ink-soft);
}

.partner-intro {
  align-items: end;
  margin-bottom: var(--space-20);
}

.partner-copy {
  max-width: 34rem;
}

.partner-copy p {
  color: var(--ink-soft);
}

.partner-copy .launch-note {
  color: var(--mineral);
  font-weight: 600;
}

.partner-cta {
  display: flex;
  justify-content: center;
  margin-top: var(--space-24);
}

.closing {
  padding: clamp(7rem, 15vw, 14rem) 0 var(--space-20);
  background:
    radial-gradient(circle at 85% 90%, var(--mineral-faint), transparent 33rem),
    linear-gradient(180deg, transparent, var(--paper-faint));
}

.closing-grid {
  align-items: end;
}

.closing-statement {
  max-width: 13ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.8vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.93;
  text-wrap: balance;
}

.closing-aside {
  padding-bottom: var(--space-4);
}

.closing-aside p {
  max-width: 29rem;
  margin: 0 0 var(--space-8);
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
}

.closing-artifact {
  position: relative;
  z-index: 0;
  height: 13rem;
  margin: var(--space-20) calc(-1 * var(--gutter)) calc(-1 * var(--space-24));
  color: var(--mineral);
  opacity: 0.52;
}

.closing-artifact svg {
  width: 100%;
  height: 100%;
}

.closing-artifact .contour,
.closing-artifact .trace {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1.3;
  vector-effect: non-scaling-stroke;
}

.closing-artifact .trace {
  stroke: currentColor;
  stroke-width: 2.2;
}

.closing-artifact .node {
  fill: var(--canvas-light);
  stroke: currentColor;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.site-footer {
  margin-top: var(--space-24);
  padding-top: var(--space-8);
  border-top: 1px solid var(--hairline);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.footer-note {
  color: var(--ink-muted);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-links a {
  min-height: 2.75rem;
  align-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

.surface-layer:nth-child(1) { --layer: 0; }
.surface-layer:nth-child(2) { --layer: 1; }
.surface-layer:nth-child(3) { --layer: 2; }
.surface-layer:nth-child(4) { --layer: 3; }

@keyframes artifact-settle {
  from {
    opacity: 0;
    transform: translate(-39%, -48%) rotateX(62deg) rotateZ(-7deg) translateZ(calc(var(--layer) * 2.75rem));
  }
  to {
    opacity: 1;
    transform: translate(-42%, -54%) rotateX(62deg) rotateZ(-7deg) translateZ(calc(var(--layer) * 2.75rem));
  }
}

@media (max-width: 64rem) {
  .rhiza {
    grid-template-columns: minmax(12rem, 0.7fr) 1fr;
  }

  .surface-list {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 var(--space-8);
  }

  .hero-grid,
  .decision-grid,
  .archive-intro,
  .partner-intro,
  .closing-grid {
    grid-template-columns: 1fr;
  }

  .hero-artifact {
    min-height: 30rem;
  }

  .decision-receipt {
    justify-self: start;
  }

  .horizon-item {
    grid-template-columns: 3rem minmax(12rem, 0.75fr) 1fr;
  }
}

@media (max-width: 48rem) {
  .nav {
    min-height: 4.75rem;
  }

  .nav-links a:not(:last-child) {
    display: none;
  }

  .display,
  .section-title {
    max-width: 100%;
  }

  .display {
    font-size: clamp(2.75rem, 13vw, 4.4rem);
  }

  .section-title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .showcase-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .artifact {
    min-height: 24rem;
  }

  .lineage,
  .partner-notes,
  .surface-list {
    grid-template-columns: 1fr;
  }

  .lineage {
    gap: var(--space-10);
    padding: 0 0 0 var(--space-8);
  }

  .lineage::before {
    top: 0;
    bottom: 0;
    left: 0.25rem;
    width: 1px;
    height: auto;
  }

  .release::before {
    top: 1rem;
    left: -2.05rem;
  }

  .release-surface {
    aspect-ratio: 1.4;
  }

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

  .rhiza-lines {
    min-height: 14rem;
    transform: rotate(90deg);
  }

  .partner-note:nth-child(n) {
    min-height: 0;
    transform: none;
  }

  .hero {
    min-height: 0;
    padding-top: var(--space-16);
  }

  .hero-actions,
  .horizon-intro,
  .footer-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions {
    flex-wrap: nowrap;
  }

  .hero-artifact {
    min-height: 24rem;
  }

  .hero-artifact .surface-layer {
    width: min(31rem, 88vw);
  }

  .archive-list {
    grid-template-columns: 1fr;
  }

  .archive-lineage .release:nth-child(n) {
    transform: none;
  }

  .lineage-trace {
    display: none;
  }

  .horizon-item {
    grid-template-columns: 2.5rem 1fr;
    gap: var(--space-3) var(--space-4);
  }

  .horizon-item p {
    grid-column: 2;
  }

  .partner-cta {
    justify-content: flex-start;
  }

  .closing-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .closing-artifact {
    height: 9rem;
    margin-top: var(--space-16);
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .action:hover svg,
  .evidence summary::after {
    transform: none;
  }
}