:root {
  color-scheme: light;
  --ink: #080a09;
  --ink-soft: #111512;
  --paper: #f4f5f0;
  --white: #fbfcf8;
  --orange: #ff4b13;
  --orange-light: #ffb36a;
  --blue: #2454ff;
  --yellow: #ffd23e;
  --green: #2ac169;
  --red: #da2d2d;
  --muted: #666c67;
  --rule: rgba(8, 10, 9, 0.24);
  --shell: min(1320px, calc(100vw - 48px));
  --font: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --step--1: clamp(0.75rem, 0.72rem + 0.14vw, 0.84rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.12rem + 0.65vw, 1.68rem);
  --step-2: clamp(1.8rem, 1.44rem + 1.8vw, 3rem);
  --step-3: clamp(2.7rem, 1.82rem + 4.4vw, 5.8rem);
  --step-4: clamp(3.4rem, 1.7rem + 6vw, 7.5rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body,
button,
a {
  font-family: var(--font);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

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

button {
  font: inherit;
}

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

::selection {
  background: var(--yellow);
  color: var(--ink);
}

h1,
h2,
h3,
p,
dl,
dd,
ol,
ul {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: -0.045em;
  line-height: 0.96;
}

h1,
h2 {
  font-weight: 900;
}

h3 {
  font-weight: 800;
}

em {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 16px;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  transform: translateY(-180%);
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid var(--ink);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  line-height: 1;
  text-decoration: none;
}

.wordmark-plus {
  margin-inline: 0.28em;
  color: var(--orange);
  font-size: 1.4em;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: var(--step--1);
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:not(.nav-source) {
  border-bottom: 2px solid transparent;
}

.site-nav a:not(.nav-source):hover {
  border-bottom-color: var(--orange);
}

.nav-source {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink);
  padding: 8px 14px;
  background: var(--ink);
  color: var(--white);
}

.nav-toggle {
  display: none;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-toggle-mark {
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  background: var(--orange);
  border-radius: 50%;
}

.hero {
  border-bottom: 1px solid var(--ink);
  padding: clamp(72px, 9vw, 110px) 0 clamp(64px, 9vw, 120px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(320px, 4fr);
  align-items: end;
  gap: clamp(48px, 8vw, 120px);
}

.kicker,
.section-number,
.flow-kind,
.sample-label,
.object-tag,
.role-index,
.footer-label {
  font-size: var(--step--1);
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 30px;
}

.status-dot {
  width: 11px;
  height: 11px;
  border: 1px solid var(--ink);
  background: var(--orange);
  border-radius: 50%;
}

.hero h1 {
  max-width: 12.2ch;
  margin-bottom: 34px;
  font-size: var(--step-4);
}

.hero h1 em {
  display: block;
  color: var(--orange);
}

.hero-lede {
  max-width: 750px;
  margin-bottom: 36px;
  font-size: var(--step-1);
  line-height: 1.35;
}

.hero-actions,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  padding: 14px 20px;
  font-size: var(--step--1);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-ink {
  background: var(--ink);
  color: var(--white);
}

.button-paper {
  background: transparent;
  color: var(--ink);
}

.button-paper:hover {
  background: var(--white);
}

.hero-object {
  position: relative;
}

.adcard-sample {
  border: 2px solid var(--ink);
  background: var(--white);
}

.sample-header,
.sample-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sample-header {
  border-bottom: 2px solid var(--ink);
  background: var(--orange);
}

.sample-header p,
.sample-footer p {
  margin: 0;
}

.sample-body {
  min-height: 270px;
  padding: 34px 24px 48px;
}

.sample-label {
  margin-bottom: 34px;
  color: var(--muted);
}

.sample-body h2 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 4.2rem);
}

.sample-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--ink);
}

.sample-meta div {
  min-width: 0;
  padding: 14px 12px;
}

.sample-meta div + div {
  border-left: 1px solid var(--ink);
}

.sample-meta dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sample-meta dd {
  overflow-wrap: anywhere;
  font-size: 0.78rem;
  font-weight: 780;
}

.sample-footer {
  justify-content: flex-start;
  border-top: 2px solid var(--ink);
  background: var(--yellow);
}

.seal {
  display: inline-grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  font-size: 1.3rem;
}

.object-caption {
  max-width: 36ch;
  margin: 12px 0 0 auto;
  color: var(--muted);
  font-size: var(--step--1);
}

.manifesto {
  border-bottom: 1px solid var(--ink);
  background: var(--white);
  padding: clamp(56px, 7vw, 96px) 0;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 2fr 5fr 5fr;
  gap: 32px;
}

.section-number {
  margin-bottom: 0;
  color: var(--muted);
}

.manifesto-line {
  margin: 0;
  font-size: var(--step-2);
  font-weight: 820;
  line-height: 1.08;
}

.manifesto-line-accent {
  color: var(--orange);
}

.section {
  padding: clamp(88px, 12vw, 176px) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 2fr 10fr;
  gap: 32px;
  margin-bottom: clamp(64px, 9vw, 120px);
}

.section-heading > div {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(260px, 4fr);
  align-items: end;
  gap: 48px;
}

.section-heading h2,
.objects-intro h2,
.trust-grid h2,
.privacy-grid h2 {
  margin-bottom: 0;
  font-size: var(--step-3);
}

.section-heading p:not(.section-number) {
  max-width: 46ch;
  margin-bottom: 0;
  color: var(--muted);
}

.protocol-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
  list-style: none;
}

.protocol-flow li {
  position: relative;
  min-height: 360px;
  padding: 28px 28px 36px 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.protocol-flow li + li {
  border-left: 1px solid var(--ink);
  padding-left: 28px;
}

.flow-index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 900;
}

.protocol-flow li:nth-child(1) .flow-index {
  background: var(--orange);
}

.protocol-flow li:nth-child(2) .flow-index {
  background: var(--blue);
  color: var(--white);
}

.protocol-flow li:nth-child(3) .flow-index {
  background: var(--green);
}

.flow-kind {
  margin-bottom: 14px;
  color: var(--muted);
}

.protocol-flow h3 {
  margin-bottom: 16px;
  font-size: var(--step-2);
}

.protocol-flow p:last-child {
  max-width: 34ch;
  margin-bottom: 0;
}

.objects-section {
  border-block: 1px solid var(--ink);
  background: var(--white);
}

.objects-grid {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: clamp(56px, 10vw, 140px);
}

.objects-intro {
  position: sticky;
  top: 112px;
  align-self: start;
}

.objects-intro .section-number {
  margin-bottom: 38px;
}

.objects-intro h2 {
  margin-bottom: 30px;
}

.objects-intro > p:not(.section-number) {
  max-width: 38ch;
  color: var(--muted);
}

.text-link {
  display: inline-block;
  margin-top: 20px;
  font-weight: 800;
}

.object-list {
  border-top: 2px solid var(--ink);
}

.object-list article {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 12px 28px;
  padding: 34px 0 46px;
  border-bottom: 1px solid var(--ink);
}

.object-tag {
  grid-column: 1 / -1;
  width: fit-content;
  margin-bottom: 18px;
  border: 1px solid var(--ink);
  padding: 5px 8px;
}

.object-tag-orange {
  background: var(--orange);
}

.object-tag-blue {
  background: var(--blue);
  color: var(--white);
}

.object-tag-green {
  background: var(--green);
}

.object-list h3 {
  margin: 0;
  font-size: var(--step-2);
}

.object-list p:not(.object-tag) {
  margin-bottom: 18px;
}

.object-list a {
  grid-column: 2;
  width: fit-content;
  font-size: var(--step--1);
  font-weight: 800;
  text-transform: uppercase;
}

.trust-section {
  background: var(--blue);
  color: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: clamp(48px, 8vw, 120px);
}

.section-number-light {
  color: rgba(251, 252, 248, 0.68);
}

.trust-grid .section-number {
  margin-bottom: 38px;
}

.trust-lede {
  max-width: 52ch;
  margin-bottom: 48px;
  font-size: var(--step-1);
  line-height: 1.35;
}

.assurance-table {
  border-top: 2px solid var(--white);
}

.assurance-row {
  display: grid;
  grid-template-columns: 1.25fr 2fr 1fr;
  gap: 24px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid rgba(251, 252, 248, 0.55);
  font-size: var(--step--1);
}

.assurance-row span:first-child {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
}

.assurance-header {
  color: rgba(251, 252, 248, 0.7);
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.assurance-mark {
  display: inline-block;
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  border: 2px solid var(--white);
}

.assurance-verified {
  background: var(--green);
  border-radius: 50%;
}

.assurance-corroborated {
  background: var(--yellow);
  transform: rotate(45deg);
}

.assurance-self {
  border-radius: 50%;
  background: transparent;
}

.assurance-inconclusive {
  position: relative;
  border: 0;
}

.assurance-inconclusive::before,
.assurance-inconclusive::after {
  position: absolute;
  top: 6px;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--orange-light);
  content: "";
}

.assurance-inconclusive::before {
  transform: rotate(45deg);
}

.assurance-inconclusive::after {
  transform: rotate(-45deg);
}

.privacy-band {
  padding: clamp(72px, 10vw, 132px) 0;
  border-bottom: 1px solid var(--ink);
  background: var(--yellow);
}

.privacy-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: clamp(48px, 8vw, 120px);
}

.privacy-grid .section-number {
  margin-bottom: 38px;
  color: var(--ink);
}

.forbidden-list {
  margin: 28px 0 30px;
  padding: 0;
  border-top: 2px solid var(--ink);
  list-style: none;
}

.forbidden-list li {
  position: relative;
  padding: 14px 44px 14px 0;
  border-bottom: 1px solid var(--ink);
  font-size: var(--step-1);
  font-weight: 800;
}

.forbidden-list li::after {
  position: absolute;
  top: 50%;
  right: 4px;
  width: 20px;
  height: 2px;
  background: var(--red);
  content: "";
  transform: rotate(-45deg);
}

.privacy-note {
  max-width: 52ch;
  margin-bottom: 0;
  font-weight: 700;
}

.roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 72px;
  border-block: 2px solid var(--ink);
}

.roles article {
  min-height: 290px;
  padding: 26px 28px 38px 0;
}

.roles article + article {
  border-left: 1px solid var(--ink);
  padding-left: 28px;
}

.role-index {
  margin-bottom: 76px;
  color: var(--orange);
}

.roles h3 {
  margin-bottom: 14px;
  font-size: var(--step-2);
}

.roles p:last-child {
  max-width: 36ch;
  margin-bottom: 0;
}

.developer-panel {
  display: grid;
  grid-template-columns: 7fr 4fr;
  gap: 48px;
  margin-bottom: 32px;
  padding: clamp(30px, 5vw, 64px);
  background: var(--orange);
}

.kicker-dark {
  margin-bottom: 52px;
}

.developer-panel h3 {
  max-width: 12ch;
  margin-bottom: 20px;
  font-size: var(--step-3);
}

.developer-panel p:last-child {
  max-width: 54ch;
  margin-bottom: 0;
}

.command-block {
  align-self: end;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--white);
}

.command-block pre {
  overflow-x: auto;
  margin: 0;
  padding: 24px;
  font: 700 0.88rem/1.8 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.copy-button {
  display: none;
  width: 100%;
  min-height: 48px;
  border: 0;
  border-top: 1px solid var(--white);
  padding: 10px 14px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.js .copy-button {
  display: block;
}

.copy-button:hover {
  background: var(--white);
  color: var(--ink);
}

.resource-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 2px solid var(--ink);
}

.resource-links a {
  display: flex;
  min-height: 90px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--ink);
  padding: 18px 0;
  text-decoration: none;
}

.resource-links a:nth-child(odd) {
  padding-right: 24px;
}

.resource-links a:nth-child(even) {
  border-left: 1px solid var(--ink);
  padding-left: 24px;
}

.resource-links a:hover strong {
  color: var(--orange);
}

.resource-links span {
  color: var(--muted);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.resource-links strong {
  text-align: right;
}

.closing {
  background: var(--ink);
  color: var(--white);
  padding: clamp(88px, 12vw, 176px) 0;
}

.closing-grid {
  display: grid;
  grid-template-columns: 2fr 10fr;
  gap: 32px;
}

.closing h2,
.closing > p,
.closing-actions {
  grid-column: 2;
}

.closing h2 {
  max-width: 13ch;
  margin-bottom: 42px;
  font-size: var(--step-3);
}

.closing h2 em {
  color: var(--orange);
}

.closing-grid > p:not(.section-number) {
  max-width: 54ch;
  margin-bottom: 36px;
  color: rgba(251, 252, 248, 0.78);
  font-size: var(--step-1);
}

.button-orange {
  border-color: var(--orange);
  background: var(--orange);
  color: var(--ink);
}

.button-dark-outline {
  border-color: var(--white);
  color: var(--white);
}

.button-dark-outline:hover {
  background: var(--white);
  color: var(--ink);
}

.site-footer {
  border-top: 1px solid var(--white);
  background: var(--ink);
  color: var(--white);
  padding: 44px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 3fr 2fr 2fr 3fr;
  gap: 36px;
  font-size: var(--step--1);
}

.wordmark-footer {
  margin-bottom: 14px;
  color: var(--white);
}

.footer-label {
  margin-bottom: 12px;
  color: rgba(251, 252, 248, 0.56);
}

.footer-grid p {
  margin-bottom: 0;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: 8px 18px;
  text-align: right;
}

.footer-meta p {
  flex-basis: 100%;
}

.spec-page {
  background: var(--paper);
}

.spec-hero {
  border-bottom: 2px solid var(--ink);
  padding: clamp(72px, 10vw, 132px) 0;
}

.spec-hero-grid {
  display: grid;
  grid-template-columns: 7fr 4fr;
  align-items: end;
  gap: clamp(52px, 9vw, 140px);
}

.spec-hero h1 {
  margin-bottom: 0;
  font-size: var(--step-4);
}

.spec-hero h1 em {
  color: var(--orange);
}

.spec-abstract > p {
  margin-bottom: 38px;
  font-size: var(--step-1);
  line-height: 1.35;
}

.spec-abstract dl {
  margin: 0;
  border-top: 2px solid var(--ink);
}

.spec-abstract dl div {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 20px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ink);
  font-size: var(--step--1);
}

.spec-abstract dt {
  color: var(--muted);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.spec-abstract dd {
  font-weight: 750;
}

.spec-layout {
  display: grid;
  grid-template-columns: 2.5fr 8fr;
  gap: clamp(48px, 8vw, 112px);
  padding-block: clamp(72px, 10vw, 144px);
}

.spec-layout > * {
  min-width: 0;
}

.spec-toc {
  position: sticky;
  top: 110px;
  align-self: start;
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.spec-toc > p {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-toc nav {
  display: grid;
}

.spec-toc a {
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--step--1);
  font-weight: 750;
  text-decoration: none;
}

.spec-toc a:hover {
  color: var(--orange);
}

.spec-article > section {
  padding: 0 0 clamp(78px, 10vw, 132px);
  scroll-margin-top: 110px;
}

.spec-article > section + section {
  padding-top: clamp(78px, 10vw, 132px);
  border-top: 1px solid var(--ink);
}

.spec-section-index {
  margin-bottom: 30px;
  color: var(--muted);
  font-size: var(--step--1);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-article h2 {
  max-width: 15ch;
  margin-bottom: 34px;
  font-size: var(--step-3);
}

.spec-article h3 {
  font-size: var(--step-1);
}

.spec-article > section > p:not(.spec-section-index),
.spec-article > section > ul {
  max-width: 66ch;
}

.spec-lede {
  font-size: var(--step-1);
  line-height: 1.4;
}

.spec-note {
  max-width: 760px;
  margin-top: 38px;
  border: 2px solid var(--ink);
  padding: 24px;
}

.spec-note strong {
  display: block;
  margin-bottom: 10px;
  font-size: var(--step--1);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-note p {
  margin-bottom: 0;
}

.spec-note-yellow {
  background: var(--yellow);
}

.spec-note-orange {
  background: var(--orange-light);
}

.principle-list {
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
  counter-reset: principles;
  list-style: none;
}

.principle-list li {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 28px;
  padding: 20px 0 22px 52px;
  border-bottom: 1px solid var(--ink);
  counter-increment: principles;
}

.principle-list li::before {
  position: absolute;
  margin-left: -52px;
  color: var(--orange);
  content: counter(principles, decimal-leading-zero);
  font-size: 0.72rem;
  font-weight: 900;
}

.principle-list strong {
  line-height: 1.25;
}

.principle-list span {
  color: var(--muted);
}

.spec-article pre {
  overflow-x: auto;
  width: 100%;
  max-width: 760px;
  margin: 34px 0;
  border-left: 10px solid var(--orange);
  padding: 24px;
  background: var(--ink);
  color: var(--white);
  font: 650 0.84rem/1.75 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.spec-resource-link {
  display: inline-block;
  margin-top: 18px;
  font-size: var(--step--1);
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.spec-resource-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.spec-assurance {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 2px solid var(--ink);
}

.spec-assurance article {
  min-height: 230px;
  padding: 26px 26px 32px 0;
  border-bottom: 1px solid var(--ink);
}

.spec-assurance article:nth-child(even) {
  border-left: 1px solid var(--ink);
  padding-left: 26px;
}

.spec-assurance .assurance-mark {
  margin-bottom: 60px;
  border-color: var(--ink);
}

.spec-assurance h3 {
  margin-bottom: 12px;
}

.spec-assurance p {
  max-width: 36ch;
  margin-bottom: 0;
}

.spec-forbidden-list {
  max-width: 760px;
}

.disclosure-list {
  max-width: 760px;
  margin: 0;
  border-top: 2px solid var(--ink);
}

.disclosure-list div {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 28px;
  padding: 18px 0;
  border-bottom: 1px solid var(--ink);
}

.disclosure-list dt {
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.disclosure-list dd {
  color: var(--muted);
}

.spec-roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 40px 0;
  border-block: 2px solid var(--ink);
}

.spec-roles article {
  padding: 24px 24px 32px 0;
}

.spec-roles article + article {
  border-left: 1px solid var(--ink);
  padding-left: 24px;
}

.spec-roles h3 {
  margin-bottom: 14px;
}

.spec-roles p {
  margin-bottom: 0;
  font-size: var(--step--1);
}

.spec-final-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
}

@media (max-width: 1024px) {
  :root {
    --shell: min(100% - 40px, 960px);
  }

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

  .hero-copy {
    max-width: 900px;
  }

  .hero-object {
    width: min(100%, 610px);
    margin-left: auto;
  }

  .manifesto-grid {
    grid-template-columns: 1fr 5fr 5fr;
  }

  .section-heading,
  .closing-grid {
    grid-template-columns: 1fr 9fr;
  }

  .section-heading > div {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .objects-grid,
  .trust-grid,
  .privacy-grid {
    grid-template-columns: 1fr;
  }

  .objects-intro {
    position: static;
  }

  .objects-intro > p:not(.section-number) {
    max-width: 56ch;
  }

  .developer-panel {
    grid-template-columns: 1fr;
  }

  .command-block {
    width: min(100%, 560px);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer-meta {
    grid-column: 1 / -1;
    justify-content: flex-start;
    text-align: left;
  }

  .spec-hero-grid {
    grid-template-columns: 1fr;
  }

  .spec-abstract {
    max-width: 720px;
  }

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

  .spec-toc {
    position: static;
  }

  .spec-toc nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 24px;
  }
}

@media (max-width: 768px) {
  :root {
    --shell: min(100% - 32px, 720px);
  }

  .header-inner {
    position: relative;
  }

  .js .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 8px 18px;
  }

  .js .site-nav {
    position: fixed;
    top: 72px;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    border-bottom: 2px solid var(--ink);
    background: var(--paper);
    padding: 16px;
  }

  .js .site-nav[data-open="true"] {
    display: grid;
  }

  .js .site-nav a {
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--ink);
  }

  .js .site-nav .nav-source {
    justify-content: center;
    border: 1px solid var(--ink);
  }

  .manifesto-grid,
  .section-heading,
  .closing-grid {
    grid-template-columns: 1fr;
  }

  .manifesto-line,
  .closing h2,
  .closing-grid > p:not(.section-number),
  .closing-actions {
    grid-column: 1;
  }

  .protocol-flow,
  .roles {
    grid-template-columns: 1fr;
  }

  .protocol-flow li,
  .roles article {
    min-height: 0;
    gap: 48px;
    padding: 26px 0 36px;
  }

  .protocol-flow li + li,
  .roles article + article {
    border-top: 1px solid var(--ink);
    border-left: 0;
    padding-left: 0;
  }

  .protocol-flow li {
    display: grid;
    grid-template-columns: 48px 1fr;
  }

  .role-index {
    margin-bottom: 40px;
  }

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

  .object-list a {
    grid-column: 1;
  }

  .assurance-header {
    display: none;
  }

  .assurance-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .assurance-row span:last-child::before {
    content: "Settlement: ";
    font-weight: 800;
  }

  .resource-links {
    grid-template-columns: 1fr;
  }

  .resource-links a:nth-child(odd),
  .resource-links a:nth-child(even) {
    border-left: 0;
    padding-inline: 0;
  }

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

  .footer-grid > div:first-child,
  .footer-meta {
    grid-column: 1 / -1;
  }

  .principle-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .spec-roles {
    grid-template-columns: 1fr;
  }

  .spec-roles article + article {
    border-top: 1px solid var(--ink);
    border-left: 0;
    padding-left: 0;
  }
}

@media (max-width: 480px) {
  :root {
    --shell: calc(100% - 24px);
  }

  .header-inner {
    min-height: 64px;
  }

  .js .site-nav {
    top: 64px;
  }

  .hero {
    padding-top: 52px;
  }

  .hero-actions,
  .closing-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .sample-body {
    min-height: 230px;
  }

  .sample-meta {
    grid-template-columns: 1fr;
  }

  .sample-meta div + div {
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .protocol-flow li {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .developer-panel {
    margin-inline: -12px;
    padding: 30px 22px;
  }

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

  .footer-grid > div:first-child,
  .footer-meta {
    grid-column: 1;
  }

  .spec-toc nav,
  .spec-assurance {
    grid-template-columns: minmax(0, 1fr);
  }

  .spec-assurance article:nth-child(even) {
    border-left: 0;
    padding-left: 0;
  }

  .disclosure-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .spec-final-links {
    display: grid;
  }
}

@media (min-width: 1440px) {
  .hero h1 {
    max-width: 10.5ch;
  }

  .protocol-flow li {
    min-height: 390px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}