:root {
  --case-ink: #0b0b0b;
  --case-paper: #f6f4ef;
  --case-reading-alt: #ded9d0;
  --case-accent-motion: #54873a;
  --case-accent-ink: #3e642f;
  --case-accent-dark: #b1cc9e;
  --case-danger: #eb4242;
  --case-danger-on-dark: #ffb4b4;
  --case-rule: #c9c5bc;
  --case-rule-strong: #7b766d;
  --case-muted: #5b5750;
  --case-dark-muted: #c8c5be;
  --case-target: 44px;
  --case-gutter: clamp(1rem, 3vw, 3rem);
  --case-ease: cubic-bezier(.16, 1, .3, 1);
  --case-progress-scale: 0;
  --case-media-stage: #e9e6df;
  --case-media-stage-border: rgb(11 11 11 / .14);
  --case-media-screen-border: rgb(255 255 255 / .16);
  --case-media-radius: clamp(12px, 1.15vw, 20px);
  --case-media-inner-radius: clamp(8px, .78vw, 14px);
  --case-media-inset: clamp(12px, 1.55vw, 28px);
  --case-media-stage-shadow:
    0 1px 2px rgb(11 11 11 / .12),
    0 18px 48px rgb(11 11 11 / .12);
  --case-media-screen-shadow:
    0 1px 2px rgb(11 11 11 / .2),
    0 10px 28px rgb(11 11 11 / .2);
  color-scheme: light;
  font-family: Arial, Helvetica, sans-serif;
  scroll-behavior: auto;
  scroll-padding-bottom: 1rem;
  scroll-padding-top: 5.5rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 320px;
  background: var(--case-paper);
  color: var(--case-ink);
}

body {
  overflow-x: clip;
}

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

a {
  color: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--case-ink);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px #fff;
}

.skip-link {
  position: fixed;
  top: .5rem;
  left: .75rem;
  z-index: 200;
  display: inline-flex;
  min-height: var(--case-target);
  align-items: center;
  padding: .65rem 1rem;
  background: var(--case-paper);
  color: var(--case-ink);
  font-weight: 800;
  transform: translateY(-180%);
  transition: transform .2s var(--case-ease);
}

.skip-link:focus {
  top: .75rem;
  transform: translateY(0);
  transition: none;
}

.case-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 180;
  height: 4px;
  background: color-mix(in srgb, var(--case-rule) 65%, transparent);
  pointer-events: none;
}

.case-progress i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--case-accent-motion);
  transform: scaleX(var(--case-progress-scale));
  transform-origin: left;
  will-change: transform;
}

.case-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  min-height: 4.5rem;
  padding: .75rem var(--case-gutter);
  border-bottom: 1px solid var(--case-rule);
  background: color-mix(in srgb, var(--case-paper) 93%, transparent);
  backdrop-filter: blur(14px);
}

.case-brand {
  display: inline-flex;
  min-height: var(--case-target);
  min-width: 0;
  align-items: center;
  gap: .45rem;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: -.025em;
  text-decoration: none;
}

.case-brand b {
  overflow: hidden;
  color: var(--case-muted);
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case-header > p {
  margin: 0;
  color: var(--case-muted);
  font-size: .75rem;
  font-weight: 800;
}

.case-header nav {
  display: flex;
  grid-column: 1 / -1;
  margin-top: .5rem;
  border: 1px solid var(--case-ink);
  border-radius: 999px;
  overflow: visible;
}

.case-header nav a {
  position: relative;
  display: inline-flex;
  flex: 1 1 0;
  min-width: 0;
  min-height: var(--case-target);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .14rem;
  padding-inline: .7rem;
  border-left: 1px solid var(--case-ink);
  font-size: .75rem;
  font-weight: 900;
  text-decoration: none;
}

.case-header nav a span {
  color: var(--case-muted);
  font-size: .75rem;
  letter-spacing: .05em;
}

.case-header nav a b {
  max-width: 100%;
  font-size: .75rem;
  line-height: 1.1;
  text-align: center;
  text-wrap: balance;
}

.case-header nav a:is(:hover, :focus-visible) span {
  color: #c8c5be;
}

.case-header nav a:first-child {
  border-left: 0;
  border-radius: 999px 0 0 999px;
}

.case-header nav a:last-child {
  border-radius: 0 999px 999px 0;
}

.case-header nav a:focus-visible {
  z-index: 2;
}

.case-header nav a:is(:hover, :focus-visible) {
  background: var(--case-ink);
  color: var(--case-paper);
}

.chapter-rail {
  position: static;
  z-index: 120;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  padding-bottom: env(safe-area-inset-bottom);
  border-top: 1px solid var(--case-ink);
  background: var(--case-paper);
}

.chapter-rail a {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 48px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .12rem;
  border-left: 1px solid var(--case-rule);
  padding: .2rem .08rem;
  font-size: .75rem;
  font-weight: 900;
  text-decoration: none;
}

.chapter-rail a:first-child {
  border-left: 0;
}

.chapter-rail a b {
  max-width: 100%;
  font-size: .75rem;
  line-height: 1.05;
  overflow-wrap: anywhere;
  text-align: center;
}

.chapter-rail a[aria-current="true"] {
  background: var(--case-reading-alt);
  color: var(--case-ink);
  box-shadow: inset 0 -4px 0 var(--case-accent-motion);
}

.chapter-rail a[aria-current="true"] b {
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

.chapter-rail a[aria-current="true"]:focus-visible {
  box-shadow: inset 0 -4px 0 var(--case-accent-motion), inset 0 0 0 3px #fff;
}

.chapter-rail a:focus-visible {
  outline-offset: -6px;
  box-shadow: inset 0 0 0 3px #fff;
}

main {
  padding-bottom: 0;
}

.pulse {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--case-rule);
}

.pulse-label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .25rem 1rem;
  align-content: start;
  padding: 1rem var(--case-gutter);
  border-bottom: 1px solid currentColor;
  font-size: .75rem;
  letter-spacing: .035em;
}

.pulse-label span,
.pulse-label strong {
  font-weight: 900;
}

.pulse-label small {
  grid-column: 2;
  color: var(--case-muted);
  opacity: 1;
  font-size: .75rem;
}

.pulse--pressure .pulse-label small {
  color: var(--case-muted);
}

.pulse--decisions .pulse-label small,
.pulse--proof .pulse-label small {
  color: var(--case-dark-muted);
}

.pulse-body {
  padding: clamp(4rem, 9vw, 8rem) var(--case-gutter);
}

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

.pulse h1,
.pulse h2,
.pulse h3 {
  font-family: "Arial Narrow", "Helvetica Neue Condensed", Arial, sans-serif;
  letter-spacing: -.065em;
}

.pulse h1,
.pulse h2 {
  overflow-wrap: anywhere;
}

.pulse h1 {
  max-width: 10ch;
  margin-bottom: clamp(2rem, 6vw, 5rem);
  font-size: clamp(3.5rem, 14vw, 10rem);
  font-stretch: condensed;
  font-weight: 900;
  line-height: .78;
  text-wrap: balance;
}

.pulse h2 {
  max-width: 11ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 9vw, 8rem);
  font-weight: 900;
  line-height: .82;
  text-wrap: balance;
}

.pulse-transition {
  max-width: 62ch;
  margin-bottom: clamp(3rem, 7vw, 6rem);
  color: var(--case-muted);
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  font-weight: 700;
  line-height: 1.45;
}

.pulse h3 {
  margin-bottom: 1rem;
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 900;
  line-height: .92;
}

.case-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: clamp(3rem, 8vw, 7rem);
  font-size: .75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.case-kicker span,
.case-kicker b {
  padding: .55rem .8rem;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.case-kicker b {
  background: var(--case-tone);
  color: var(--case-ink);
}

.case-synopsis,
.lead {
  max-width: 30ch;
  margin-bottom: clamp(3rem, 8vw, 7rem);
  font-size: clamp(1.65rem, 4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -.045em;
  line-height: 1.02;
}

.position-grid,
.pressure-grid,
.proof-boundary {
  display: grid;
  gap: 1px;
  border: 1px solid var(--case-rule);
  background: var(--case-rule);
}

.position-grid article,
.pressure-grid article,
.proof-boundary > article {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--case-paper);
}

.position-grid span,
.pressure-grid span,
.proof-boundary > article > span,
.artifact-copy > span,
.signal-card > span,
.validation-card > span {
  display: block;
  margin-bottom: 1.25rem;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.position-grid strong {
  display: block;
  margin-bottom: .8rem;
  font-size: 1.12rem;
}

.position-grid p,
.pressure-grid p,
.pressure-grid li,
.artifact-copy p,
.signal-card p,
.validation-card p,
.proof-boundary li,
.reflection-grid p,
.source-note p,
.source-note li {
  max-width: 68ch;
  margin-bottom: 0;
  color: var(--case-muted);
  font-size: .96rem;
  line-height: 1.55;
}

.pulse--pressure {
  background: var(--case-reading-alt);
  color: var(--case-ink);
}

.pulse--pressure .pulse-label {
  border-color: var(--case-rule-strong);
}

.pulse--pressure .pulse-label span,
.pulse--pressure .artifact-copy > span {
  color: var(--case-accent-ink);
}

.pulse--pressure .pressure-grid {
  border-color: var(--case-rule-strong);
  background: var(--case-rule-strong);
}

.pulse--pressure .pressure-grid article {
  background: var(--case-paper);
}

.pulse--pressure .pressure-grid :is(p, li) {
  color: var(--case-muted);
}

.pulse--pressure .pulse-transition,
.pulse--pressure .artifact-copy p {
  color: var(--case-muted);
}

.pressure-grid ul {
  margin-bottom: 0;
  padding-left: 1.15rem;
}

.pressure-grid li + li {
  margin-top: .6rem;
}

.pressure-grid__stakes {
  background: var(--case-paper) !important;
  color: var(--case-ink);
}

.pressure-grid__stakes p {
  color: var(--case-ink) !important;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
}

.signal-track {
  display: grid;
  gap: 1px;
  margin-bottom: clamp(3rem, 7vw, 6rem);
  border: 1px solid var(--case-rule);
  background: var(--case-rule);
}

.signal-card {
  position: relative;
  min-height: 16rem;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--case-paper);
}

.signal-card strong {
  display: block;
  margin-bottom: 1.5rem;
  color: var(--case-ink);
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(2.35rem, 3vw, 4rem);
  letter-spacing: -.07em;
  line-height: .8;
  overflow-wrap: anywhere;
}

.signal-card > span {
  color: var(--case-accent-ink);
}

.signal-card small {
  display: block;
  margin-top: 1.5rem;
  color: var(--case-muted);
  font-size: .75rem;
  line-height: 1.4;
}

.signal-feature {
  max-width: 100rem;
}

.pulse--decisions {
  background: var(--case-ink);
  color: var(--case-paper);
}

.pulse--decisions .pulse-label {
  border-color: #444;
}

.pulse--decisions .pulse-transition,
.pulse--proof .pulse-transition {
  color: #c8c5be;
}

.decision-list {
  border-top: 1px solid #444;
}

.decision-card {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1.25rem;
  padding: clamp(1.5rem, 4vw, 3.5rem) 0;
  border-bottom: 1px solid #444;
}

.decision-card > div:last-child {
  grid-column: 2;
}

.decision-card > span {
  color: var(--case-accent-dark);
  font-weight: 900;
}

.decision-card small {
  display: block;
  margin-bottom: .75rem;
  color: #aaa69d;
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.decision-card p {
  max-width: 62ch;
  color: #c8c5be;
  line-height: 1.55;
}

.decision-card__rejected {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #444;
}

.decision-card__rejected strong,
.validation-card p strong {
  display: block;
  margin-bottom: .45rem;
  color: var(--case-accent-dark);
  font-size: .75rem;
  letter-spacing: .06em;
}

.artifact-group + .artifact-group {
  margin-top: clamp(5rem, 10vw, 10rem);
  padding-top: clamp(3rem, 7vw, 6rem);
  border-top: 1px solid var(--case-rule);
}

.pulse--proof .artifact-copy p {
  color: #c8c5be;
}

.pulse--proof .artifact-copy > span {
  color: var(--case-accent-dark);
}

.artifact-copy {
  max-width: 44rem;
  margin-bottom: 2rem;
}

.artifact-copy-grid {
  display: grid;
  gap: 1px;
  margin-bottom: clamp(3rem, 7vw, 6rem);
  border: 1px solid var(--case-rule);
  background: var(--case-rule);
}

.artifact-copy-grid .artifact-copy {
  max-width: none;
  margin: 0;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--case-paper);
}

.media-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
}

.media-grid[data-media-layout="comparison"] {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
}

.media-grid[data-media-layout="phones"] {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  align-items: stretch;
}

.media-grid[data-media-layout="phones"] > .case-media[data-orientation="landscape"] {
  grid-column: 1 / -1;
}

.media-grid > .case-media--compact {
  width: min(100%, 22rem);
  justify-self: center;
}

.case-media {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  margin: 0;
}

.case-media__stage {
  position: relative;
  display: grid;
  padding: var(--case-media-inset);
  place-items: center;
  border: 1px solid var(--case-media-stage-border);
  border-radius: var(--case-media-radius);
  background: var(--case-media-stage);
  box-shadow: var(--case-media-stage-shadow);
  overflow: hidden;
}

.case-media__stage img {
  width: 100%;
  height: auto;
  border: 1px solid var(--case-media-screen-border);
  border-radius: var(--case-media-inner-radius);
  background: #0d0d0d;
  box-shadow: var(--case-media-screen-shadow);
  object-fit: contain;
  object-position: center;
  overflow: hidden;
}

.case-media[data-orientation="portrait"] img {
  width: min(100%, 20.75rem);
  max-width: 100%;
  max-height: none;
  aspect-ratio: var(--case-media-portrait-ratio, 1170 / 2532);
}

.case-media__fallback {
  position: absolute;
  inset: 0;
  display: none;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 2rem;
  align-content: center;
  justify-items: center;
  color: #fff;
  overflow: auto;
  text-align: center;
}

.case-media__fallback strong,
.case-media__fallback span,
.case-media__fallback small {
  display: block;
  max-width: 26rem;
}

.case-media__fallback strong {
  margin-bottom: 1rem;
  color: var(--case-danger-on-dark);
}

.case-media__fallback small {
  margin-top: .75rem;
  color: #aaa;
}

.case-media[data-media-recovery-layout="shallow"] .case-media__fallback {
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto minmax(0, 1fr);
  align-content: stretch;
  align-items: center;
  justify-items: start;
  gap: .3rem .65rem;
  padding: .25rem .65rem;
  overflow: hidden;
  text-align: left;
}

.case-media[data-media-recovery-layout="shallow"] .case-media__fallback strong {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  line-height: 1.1;
}

.case-media[data-media-recovery-layout="shallow"] .case-media__fallback span {
  min-height: 0;
  max-height: 100%;
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  overflow: auto;
  font-size: clamp(.75rem, 2.8vw, .82rem);
  line-height: 1.2;
}

.case-media[data-media-recovery-layout="shallow"] .case-media__retry {
  grid-column: 2;
  grid-row: 1 / -1;
  align-self: center;
  margin: 0;
  padding-inline: .75rem;
  white-space: nowrap;
}

.case-media__retry {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  justify-self: center;
  margin-top: 1rem;
  padding: .65rem 1rem;
  border: 2px solid var(--case-danger-on-dark);
  border-radius: 999px;
  background: transparent;
  color: #fff;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.case-media[data-media-retrying="true"] .case-media__retry {
  cursor: wait;
  opacity: .72;
}

.case-media[data-media-error="true"] img {
  visibility: hidden;
}

.case-media[data-media-error="true"] .case-media__stage {
  border-color: #343434;
  background: #151515;
  box-shadow: none;
}

.case-media[data-media-error="true"] .case-media__fallback {
  display: grid;
}

.case-media figcaption {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: .8rem;
  padding-top: .8rem;
}

.case-media__caption-copy {
  display: grid;
  gap: .45rem;
}

.case-media figcaption span {
  color: var(--case-accent-ink);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .05em;
}

.case-media figcaption p {
  max-width: 62ch;
  margin-bottom: 0;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.4;
}

.case-media figcaption small {
  max-width: 70ch;
  color: var(--case-muted);
  font-size: .75rem;
  line-height: 1.45;
}

.pulse--pressure .case-media__caption-copy > span {
  color: var(--case-accent-ink);
}

.pulse--pressure .case-media__caption-copy > small {
  color: var(--case-muted);
}

.case-media--diagram {
  color: var(--case-ink);
}

.case-media--diagram .kinetic-diagram {
  color: var(--case-paper);
}

.pulse--proof .case-media--diagram {
  color: var(--case-paper);
}

.pulse--proof .case-media figcaption span {
  color: var(--case-accent-dark);
}

.pulse--proof .case-media figcaption small {
  color: #aaa69d;
}

.kinetic-diagram {
  position: relative;
  display: grid;
  min-height: clamp(22rem, 55vw, 42rem);
  align-content: space-between;
  gap: 2rem;
  padding: clamp(1.5rem, 5vw, 4rem);
  border: 1px solid #3e3e3e;
  background: var(--case-ink);
  color: var(--case-paper);
  overflow: hidden;
}

.kinetic-diagram::before {
  position: absolute;
  z-index: 0;
  inset: auto -10% 16%;
  height: 1px;
  background: var(--case-accent-motion);
  content: "";
  transform: rotate(-5deg);
}

.kinetic-diagram__head {
  position: relative;
  z-index: 2;
  display: grid;
  gap: .65rem;
}

.kinetic-diagram__head span {
  color: var(--case-accent-dark);
  font-size: .75rem;
  font-weight: 900;
}

.kinetic-diagram__head strong {
  min-width: 0;
  max-width: 100%;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(2rem, 5vw, 4.5rem);
  letter-spacing: -.06em;
  line-height: .82;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

.kinetic-diagram ol {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: #454545;
  list-style: none;
}

.kinetic-diagram li {
  min-height: 7rem;
  padding: 1rem;
  background: var(--case-ink);
}

.kinetic-diagram li strong,
.kinetic-diagram li span {
  display: block;
}

.kinetic-diagram li strong {
  margin-bottom: .7rem;
  color: var(--case-paper);
  font-size: clamp(1.5rem, 4vw, 3rem);
  line-height: .9;
}

.kinetic-diagram li span {
  color: #b9b5ad;
  font-size: .75rem;
  line-height: 1.35;
}

.kinetic-diagram__line {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  align-items: center;
  color: var(--case-tone);
}

.kinetic-diagram__line i {
  width: .9rem;
  aspect-ratio: 1;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.kinetic-diagram__line b {
  height: 2px;
  background: currentColor;
}

.kinetic-diagram > p {
  position: relative;
  z-index: 2;
  justify-self: start;
  max-width: 42ch;
  margin-bottom: 0;
  padding-block: .25rem;
  background: var(--case-ink);
  box-shadow: 0 0 0 .5rem var(--case-ink);
  color: #d6d2c9;
  line-height: 1.5;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  border: 0 !important;
  margin: -1px !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  white-space: nowrap !important;
}

.kinetic-diagram--inline {
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.kinetic-diagram :is(table, dl, section, article, aside, .kinetic-table-wrap, .kinetic-hybrid, .kinetic-debug, .kinetic-kill) {
  position: relative;
  z-index: 1;
}

.kinetic-diagram__purpose {
  position: relative;
  z-index: 2;
  justify-self: start;
  max-width: 42ch;
  margin: 0;
  padding-block: .25rem;
  background: var(--case-ink);
  box-shadow: 0 0 0 .5rem var(--case-ink);
  color: #d6d2c9;
  line-height: 1.5;
}

.kinetic-email-matrix,
.kinetic-email-client-proof,
.kinetic-email-defenses,
.kinetic-email-deploy,
.kinetic-email-command {
  position: relative;
  z-index: 1;
}

.kinetic-email-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-email-matrix__label {
  padding: .75rem;
  background: var(--case-ink);
  color: #b9b5ad;
  font-size: .58rem;
  letter-spacing: .05em;
}

.kinetic-email-family {
  display: grid;
  min-height: 7.5rem;
  align-content: space-between;
  gap: .75rem;
  padding: .85rem;
  background: #181818;
}

.kinetic-email-family span {
  color: #b9b5ad;
  font-size: .58rem;
  font-weight: 800;
  letter-spacing: .04em;
}

.kinetic-email-family i,
.kinetic-email-family b {
  display: block;
  height: .35rem;
  background: #66625b;
}

.kinetic-email-family i:nth-of-type(2) {
  width: 68%;
}

.kinetic-email-family b {
  width: 54%;
  height: 1.45rem;
  background: #7b766d;
}

.kinetic-email-family--restrained {
  box-shadow: inset .25rem 0 0 var(--case-tone);
}

.kinetic-email-family--restrained i {
  background: #aaa69d;
}

.kinetic-email-family--restrained b {
  background: var(--case-tone);
}

.kinetic-email-client-proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-email-client {
  display: grid;
  min-height: 10rem;
  align-content: space-between;
  gap: 1rem;
  padding: 1rem;
  background: var(--case-paper);
  color: var(--case-ink);
}

.kinetic-email-client:last-child {
  background: #191919;
  color: var(--case-paper);
}

.kinetic-email-client span {
  font-size: .62rem;
  font-weight: 900;
  text-transform: uppercase;
}

.kinetic-email-client strong {
  display: grid;
  min-height: 3.25rem;
  place-items: center;
  padding: .75rem;
  background-color: #101010;
  background-image: linear-gradient(#101010, #101010);
  color: var(--case-accent-dark);
  font-size: clamp(.75rem, 2vw, 1.2rem);
  letter-spacing: .04em;
  text-align: center;
}

.kinetic-email-defenses,
.kinetic-email-deploy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: #454545;
  list-style: none;
}

.kinetic-email-defenses li,
.kinetic-email-deploy > div {
  min-height: 5rem;
  padding: 1rem;
  background: var(--case-ink);
  color: #d6d2c9;
  font-size: .68rem;
  line-height: 1.4;
}

.kinetic-email-defenses code {
  color: var(--case-accent-dark);
}

.kinetic-email-deploy dt {
  color: var(--case-paper);
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 900;
  line-height: .9;
}

.kinetic-email-deploy dd {
  margin: .7rem 0 0;
  color: #b9b5ad;
  font-size: .66rem;
  text-transform: uppercase;
}

.kinetic-email-command {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-email-command__status {
  padding: 1rem;
  border-left: 4px solid var(--case-accent-motion);
  background: var(--case-reading-alt);
  color: var(--case-ink);
  font-size: clamp(1.6rem, 5vw, 4rem);
  letter-spacing: -.04em;
  line-height: .9;
}

.kinetic-email-command__pass {
  display: grid;
  min-height: 8rem;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 1rem;
  padding: 1rem;
  background: var(--case-ink);
  border: 1px dashed var(--case-accent-dark);
}

.kinetic-email-command__pass span,
.kinetic-email-command__pass b,
.kinetic-email-command li {
  font-size: .7rem;
  letter-spacing: .04em;
}

.kinetic-email-command__pass b {
  color: var(--case-accent-dark);
}

.kinetic-email-command ol {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.kinetic-flow {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)) !important;
}

.kinetic-flow li strong {
  font-size: clamp(1.125rem, 1.5vw, 1.5rem);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.kinetic-flow li p {
  margin: .75rem 0 0;
  color: #b9b5ad;
  font-size: .82rem;
  line-height: 1.45;
}

.kinetic-flow--five {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr)) !important;
}

.kinetic-ledger,
.kinetic-denominator,
.kinetic-kill dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: #454545;
}

.kinetic-ledger > div,
.kinetic-denominator > div,
.kinetic-kill dl > div {
  min-height: 7rem;
  padding: 1rem;
  background: var(--case-ink);
}

.kinetic-ledger dt,
.kinetic-denominator dt,
.kinetic-kill dt {
  color: var(--case-paper);
  font-size: clamp(1.125rem, 2vw, 2rem);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: .95;
  overflow-wrap: anywhere;
}

.kinetic-ledger dd,
.kinetic-denominator dd,
.kinetic-kill dd {
  margin: .7rem 0 0;
  color: #c8c5be;
  font-size: .78rem;
  line-height: 1.4;
}

.kinetic-table-wrap {
  max-width: 100%;
  border: 1px solid #454545;
  overflow-x: auto;
}

.kinetic-table-wrap table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  background: var(--case-ink);
}

.kinetic-table-wrap caption {
  padding: 1rem;
  color: #b9b5ad;
  font-size: .75rem;
  font-weight: 800;
  text-align: left;
  text-transform: uppercase;
}

.kinetic-table-wrap th,
.kinetic-table-wrap td {
  padding: 1rem;
  border-top: 1px solid #454545;
  color: #d6d2c9;
  font-size: .82rem;
  line-height: 1.4;
  text-align: left;
  vertical-align: top;
}

.kinetic-table-wrap thead th {
  color: var(--case-accent-dark);
  font-size: .7rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.kinetic-table-wrap tbody th,
.kinetic-table-wrap td strong {
  color: var(--case-paper);
}

.kinetic-email-template {
  display: grid;
  max-width: 32rem;
  min-height: 28rem;
  align-content: start;
  gap: 1.2rem;
  margin-inline: auto;
  padding: clamp(1.25rem, 4vw, 3rem);
  border: 1px solid #454545;
  border-radius: 1.25rem;
  background: #050606;
}

.kinetic-email-template > span,
.kinetic-email-template > small {
  color: var(--case-accent-dark);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .05em;
}

.kinetic-email-template h4 {
  max-width: 12ch;
  margin: 2rem 0 0;
  font-size: clamp(2rem, 6vw, 4rem);
  letter-spacing: -.055em;
  line-height: .9;
}

.kinetic-email-template p {
  color: #c8c5be;
  line-height: 1.5;
}

.kinetic-email-template > strong {
  display: grid;
  min-height: 3.5rem;
  place-items: center;
  margin-top: auto;
  padding: .9rem;
  background-color: #101010;
  background-image: linear-gradient(#101010, #101010);
  color: var(--case-accent-dark);
  font-size: .82rem;
  letter-spacing: .04em;
  text-align: center;
}

.kinetic-audit-list {
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.kinetic-audit-list li strong {
  color: var(--case-paper);
  font-size: 1rem;
  letter-spacing: -.02em;
  line-height: 1.1;
}

.kinetic-audit-list li span {
  color: #c8c5be;
  font-size: .75rem;
}

.kinetic-debug {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-debug ol {
  grid-template-columns: 1fr;
}

.kinetic-debug li {
  min-height: auto;
}

.kinetic-debug li strong {
  font-size: clamp(1.1rem, 3vw, 2rem);
}

.kinetic-debug aside {
  padding: 1rem;
  background: var(--case-ink);
}

.kinetic-debug aside strong {
  color: var(--case-accent-dark);
}

.kinetic-debug aside p {
  margin: .75rem 0 0;
  color: #c8c5be;
  line-height: 1.45;
}

.kinetic-order-path small {
  display: block;
  margin-top: .35rem;
  color: #b9b5ad;
  font-size: .68rem;
}

.kinetic-order-path {
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.kinetic-order-path li strong {
  font-size: clamp(1.15rem, 3vw, 2.2rem);
}

.kinetic-hybrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-hybrid article {
  min-height: 15rem;
  padding: clamp(1rem, 3vw, 2rem);
  background: var(--case-ink);
}

.kinetic-hybrid span {
  color: var(--case-accent-dark);
  font-size: .72rem;
  font-weight: 900;
}

.kinetic-hybrid strong {
  display: block;
  margin-top: 2rem;
  color: var(--case-paper);
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: -.06em;
  line-height: .85;
}

.kinetic-hybrid p {
  margin: 1rem 0 0;
  color: #c8c5be;
  line-height: 1.45;
}

.kinetic-zero {
  color: var(--case-paper) !important;
  font-size: clamp(1.25rem, 4vw, 2.5rem) !important;
  font-weight: 900;
  letter-spacing: -.04em;
}

.kinetic-kill {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: #454545;
}

.kinetic-kill > p {
  max-width: none;
  margin: 0;
  padding: clamp(1rem, 3vw, 2rem);
  background: var(--case-ink);
  box-shadow: none;
  color: var(--case-paper);
  font-size: clamp(1.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -.05em;
  line-height: .9;
}

.kinetic-kill > p:nth-child(2) {
  color: var(--case-paper);
}

.pulse--proof {
  background: var(--case-ink);
  color: var(--case-paper);
}

.pulse--proof .pulse-label {
  border-color: #444;
}

.validation-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(3rem, 7vw, 6rem);
  margin-bottom: clamp(3rem, 7vw, 6rem);
  border: 1px solid #444;
  background: #444;
}

.validation-card {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--case-ink);
}

.validation-card > span {
  color: var(--case-accent-dark);
}

.validation-card p {
  color: #c8c5be;
}

.proof-boundary {
  margin-bottom: clamp(3rem, 7vw, 6rem);
  border-color: #444;
  background: #444;
}

.proof-boundary > article {
  background: var(--case-ink);
}

.proof-boundary > article > span {
  color: var(--case-accent-dark);
}

.proof-boundary li,
.reflection-grid p {
  color: #c8c5be;
}

.proof-boundary ul {
  padding-left: 1.15rem;
}

.proof-boundary li + li {
  margin-top: .75rem;
}

.reflection-grid {
  display: grid;
  gap: 1rem;
}

.reflection-grid strong {
  display: block;
  margin-bottom: .35rem;
  color: var(--case-accent-dark);
  font-size: .75rem;
  text-transform: uppercase;
}

.source-note {
  display: grid;
  gap: 2rem;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid #444;
}

.source-note > div > span,
.source-conflicts > strong {
  display: block;
  margin-bottom: .75rem;
  color: var(--case-accent-dark);
  font-size: .75rem;
  letter-spacing: .05em;
}

.source-note ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.source-note li + li {
  margin-top: .9rem;
}

.source-note li span,
.source-note code {
  display: block;
}

.source-note code {
  margin-top: .25rem;
  color: var(--case-accent-dark);
  font-size: .75rem;
  overflow-wrap: anywhere;
}

.pulse--proof .source-note :is(p, li, li span) {
  color: var(--case-dark-muted);
}

.case-footer {
  display: grid;
  gap: 2rem;
  padding: clamp(3rem, 8vw, 7rem) var(--case-gutter) calc(clamp(3rem, 8vw, 7rem) + 48px);
  border-top: 4px solid var(--case-accent-motion);
  background: var(--case-reading-alt);
  color: var(--case-ink);
}

.case-footer > p {
  max-width: 16ch;
  margin: 0;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -.05em;
  line-height: .9;
}

.case-footer nav {
  display: grid;
  gap: 1px;
  border: 1px solid var(--case-ink);
  background: var(--case-ink);
}

.case-footer a {
  display: flex;
  min-height: 5rem;
  flex-direction: column;
  justify-content: center;
  padding: 1rem;
  background: var(--case-paper);
  text-decoration: none;
}

.case-footer a:is(:hover, :focus-visible) {
  background: var(--case-ink);
  color: var(--case-paper);
}

.case-footer a span {
  margin-bottom: .4rem;
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.case-footer a strong {
  font-size: 1.15rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity .36s var(--case-ease), transform .36s var(--case-ease);
}

[data-reveal][data-visible="true"] {
  opacity: 1;
  transform: none;
}

[data-reveal]:focus-within {
  opacity: 1;
  transform: none;
  transition: none;
}

@media (max-width: 47.999rem) and (min-height: 521px) {
  :root {
    scroll-padding-top: 7.6875rem;
  }
}

@media (max-width: 30rem) {
  .case-header {
    background: var(--case-paper);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .chapter-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .chapter-rail a b {
    overflow-wrap: normal;
    word-break: normal;
  }

  .pulse h1 {
    font-size: clamp(3.2rem, 16vw, 3.4rem);
  }

  .kinetic-ledger,
  .kinetic-denominator,
  .kinetic-kill dl,
  .kinetic-audit-list,
  .kinetic-hybrid,
  .kinetic-order-path {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 47.999rem) and (max-height: 520px) {
  :root {
    scroll-padding-top: 4rem;
  }

  .case-header {
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 4rem;
    padding-block: .5rem;
  }

  .case-brand b,
  .case-header > p,
  .pulse-label small {
    display: none;
  }

  .case-header nav {
    grid-column: auto;
    justify-self: end;
    width: min(20rem, 100%);
    margin-top: 0;
  }

  .pulse-label {
    padding-block: .65rem;
  }

  .pulse-body {
    padding-top: 1.25rem;
    padding-bottom: 3rem;
  }

  .case-kicker {
    margin-bottom: 1rem;
  }

  .pulse h1 {
    max-width: 15ch;
    margin-bottom: 1.5rem;
    font-size: clamp(2.5rem, 7.2vw, 3.15rem);
    line-height: .82;
  }
}

@media (max-width: 24.9375rem) and (max-height: 520px) {
  .case-header nav a {
    padding-inline: .25rem;
  }

  .case-header nav a b {
    display: none;
  }
}

@media (min-width: 48rem) {
  :root {
    --case-gutter: clamp(1.5rem, 3vw, 3rem);
  }

  .case-header {
    grid-template-columns: minmax(12rem, 1fr) auto minmax(22rem, auto);
  }

  .case-header > p {
    padding-inline: 1rem;
  }

  .case-header nav {
    grid-column: auto;
    margin-top: 0;
  }

  .chapter-rail {
    position: fixed;
    inset: 4.5rem auto 0 0;
    width: 5.5rem;
    grid-template-columns: 1fr;
    grid-template-rows: repeat(6, minmax(0, 1fr));
    padding-bottom: 0;
    border-top: 0;
    border-right: 1px solid var(--case-ink);
  }

  .chapter-rail a {
    min-height: var(--case-target);
    border-top: 1px solid var(--case-rule);
    border-left: 0;
  }

  .chapter-rail a:first-child {
    border-top: 0;
  }

  .chapter-rail a b {
    position: static;
    width: auto;
    height: auto;
    clip: auto;
    clip-path: none;
    overflow: visible;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
  }

  .chapter-rail a span {
    position: absolute;
    top: .35rem;
    left: .35rem;
    font-size: .75rem;
  }

  main,
  .case-footer {
    margin-left: 5.5rem;
  }

  main {
    padding-bottom: 0;
  }

  .case-footer {
    padding-bottom: clamp(3rem, 8vw, 7rem);
  }

  .position-grid,
  .pressure-grid,
  .signal-track,
  .artifact-copy-grid,
  .validation-grid,
  .proof-boundary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .position-grid article:last-child,
  .pressure-grid__stakes {
    grid-column: 1 / -1;
  }

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

  .media-grid[data-media-layout="comparison"] {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  }

  .media-grid[data-media-layout="phones"] {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  }

  .decision-card {
    grid-template-columns: 3rem minmax(0, .85fr) minmax(14rem, 1.15fr);
  }

  .decision-card > div:last-child {
    grid-column: auto;
  }

  .case-footer {
    grid-template-columns: minmax(0, 1fr) minmax(26rem, 1.4fr);
    align-items: end;
  }

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

@media (min-width: 75rem) {
  .pulse {
    grid-template-columns: minmax(12rem, 20vw) minmax(0, 1fr);
  }

  .pulse-label {
    position: sticky;
    top: 4.5rem;
    min-height: calc(100vh - 4.5rem);
    align-self: start;
    border-right: 1px solid currentColor;
    border-bottom: 0;
  }

  .pulse-label small {
    align-self: end;
    grid-column: 1 / -1;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
  }

  .position-grid,
  .pressure-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .position-grid article:last-child,
  .pressure-grid__stakes {
    grid-column: auto;
  }

  .signal-track,
  .artifact-copy-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .decision-card {
    grid-template-columns: 3rem minmax(14rem, .75fr) minmax(20rem, 1.25fr);
  }

  .artifact-group {
    display: grid;
    grid-template-columns: minmax(16rem, .45fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 6rem);
    align-items: start;
  }

  .artifact-copy {
    position: sticky;
    top: 7rem;
    margin-bottom: 0;
  }

  .artifact-group > .kinetic-diagram,
  .artifact-group > .media-grid {
    grid-column: 2;
  }

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

@media (min-width: 120rem) {
  .case-header {
    width: 120rem;
    margin-inline: auto;
  }

  .chapter-rail {
    left: calc((100vw - 120rem) / 2);
  }

  main,
  .case-footer {
    width: calc(120rem - 5.5rem);
    margin-left: calc((100vw - 120rem) / 2 + 5.5rem);
  }
}

@media (min-width: 48rem) and (max-height: 335px) {
  :root {
    scroll-padding-top: 4.5rem;
  }

  .chapter-rail {
    position: static;
    inset: auto;
    width: auto;
    max-width: 120rem;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-template-rows: 1fr;
    margin-inline: auto;
    border-top: 1px solid var(--case-ink);
    border-right: 0;
    border-bottom: 1px solid var(--case-rule);
  }

  .chapter-rail a {
    min-height: var(--case-target);
    border-top: 0;
    border-left: 1px solid var(--case-rule);
  }

  .chapter-rail a:first-child {
    border-left: 0;
  }

  .chapter-rail a b {
    writing-mode: horizontal-tb;
    transform: none;
  }

  .chapter-rail a span {
    position: static;
    font-size: .75rem;
  }

  main,
  .case-footer {
    width: min(100%, 120rem);
    margin-inline: auto;
  }

  .pulse-body {
    padding-top: 1rem;
  }

  .case-kicker {
    margin-bottom: 1rem;
  }

  .pulse h1 {
    font-size: clamp(3.5rem, 10vw, 7rem);
  }
}

/*
 * Safe area ownership
 *
 * Canonical cases opt into viewport-fit cover so their paper and rules can
 * reach the physical screen edge. Interactive content, focus paint, sticky
 * navigation, and reading copy remain inside the device safe area.
 */
:root {
  --case-safe-top: env(safe-area-inset-top, 0px);
  --case-safe-right: env(safe-area-inset-right, 0px);
  --case-safe-bottom: env(safe-area-inset-bottom, 0px);
  --case-safe-left: env(safe-area-inset-left, 0px);
  --case-safe-gutter-left: max(
    var(--case-gutter),
    calc(var(--case-safe-left) + .75rem)
  );
  --case-safe-gutter-right: max(
    var(--case-gutter),
    calc(var(--case-safe-right) + .75rem)
  );
  scroll-padding-top: calc(5.5rem + var(--case-safe-top));
  scroll-padding-bottom: calc(1rem + var(--case-safe-bottom));
}

.skip-link {
  top: calc(.5rem + var(--case-safe-top));
  left: calc(.75rem + var(--case-safe-left));
  transform: translateY(calc(-100% - var(--case-safe-top) - 1rem));
}

.skip-link:focus {
  top: calc(.75rem + var(--case-safe-top));
}

.case-progress {
  top: var(--case-safe-top);
}

.case-header {
  padding:
    calc(.75rem + var(--case-safe-top))
    max(var(--case-gutter), calc(var(--case-safe-right) + .75rem))
    .75rem
    max(var(--case-gutter), calc(var(--case-safe-left) + .75rem));
}

.chapter-rail {
  padding-right: var(--case-safe-right);
  padding-bottom: var(--case-safe-bottom);
  padding-left: var(--case-safe-left);
}

.pulse-label {
  padding-right: var(--case-safe-gutter-right);
  padding-left: var(--case-safe-gutter-left);
}

.pulse-body {
  padding-right: var(--case-safe-gutter-right);
  padding-left: var(--case-safe-gutter-left);
}

.case-footer {
  padding-right: var(--case-safe-gutter-right);
  padding-bottom: calc(clamp(3rem, 8vw, 7rem) + 48px + var(--case-safe-bottom));
  padding-left: var(--case-safe-gutter-left);
}

@media (max-width: 47.999rem) and (min-height: 521px) {
  :root {
    scroll-padding-top: calc(7.6875rem + var(--case-safe-top));
  }
}

@media (max-width: 47.999rem) and (max-height: 520px) {
  :root {
    scroll-padding-top: calc(4rem + var(--case-safe-top));
  }

  .case-header {
    padding:
      calc(.5rem + var(--case-safe-top))
      max(var(--case-gutter), calc(var(--case-safe-right) + .5rem))
      .5rem
      max(var(--case-gutter), calc(var(--case-safe-left) + .5rem));
  }
}

@media (min-width: 48rem) {
  :root {
    --case-safe-gutter-left: var(--case-gutter);
  }

  .chapter-rail {
    inset:
      calc(4.5rem + var(--case-safe-top))
      auto
      0
      var(--case-safe-left);
    padding-right: 0;
    padding-bottom: var(--case-safe-bottom);
    padding-left: 0;
  }

  main,
  .case-footer {
    margin-left: calc(5.5rem + var(--case-safe-left));
  }

  .case-footer {
    padding-bottom: calc(clamp(3rem, 8vw, 7rem) + var(--case-safe-bottom));
  }
}

@media (min-width: 120rem) {
  .chapter-rail {
    left: calc((100vw - 120rem) / 2);
  }

  main,
  .case-footer {
    margin-left: calc((100vw - 120rem) / 2 + 5.5rem);
  }
}

@media (min-width: 48rem) and (max-height: 335px) {
  :root {
    --case-safe-gutter-left: max(
      var(--case-gutter),
      calc(var(--case-safe-left) + .75rem)
    );
    scroll-padding-top: calc(4.5rem + var(--case-safe-top));
  }

  .chapter-rail {
    inset: auto;
    padding-right: var(--case-safe-right);
    padding-bottom: var(--case-safe-bottom);
    padding-left: var(--case-safe-left);
  }

  main,
  .case-footer {
    margin-inline: auto;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  :root,
  body {
    background: #fff !important;
    color: #0b0b0b !important;
    color-scheme: light;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  body * {
    color: #0b0b0b !important;
    text-shadow: none !important;
  }

  .pulse--decisions,
  .pulse--proof,
  .kinetic-diagram {
    background: #fff !important;
  }

  .pulse--decisions *,
  .pulse--proof *,
  .kinetic-diagram * {
    background-color: transparent !important;
    background-image: none !important;
    box-shadow: none !important;
  }

  .chapter-rail,
  .case-progress,
  .skip-link {
    display: none;
  }

  .case-header {
    position: static;
  }

  main,
  .case-footer {
    margin-left: 0;
  }

  .case-media {
    break-inside: avoid-page;
    page-break-inside: avoid;
  }

  .case-footer {
    break-inside: avoid-page;
    page-break-inside: avoid;
  }

  h1,
  h2,
  h3,
  h4 {
    break-inside: avoid-page;
    page-break-inside: avoid;
    break-after: avoid-page;
    page-break-after: avoid;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}