@font-face {
  font-family: Manrope;
  src: url("assets/manrope-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
}
:root {
  --white: oklch(1 0 0);
  --ink: oklch(0.2 0.014 150);
  --muted: oklch(0.45 0.018 150);
  --green: oklch(0.39 0.102 150);
  --green-light: oklch(0.95 0.025 150);
  --lime: oklch(0.91 0.15 130);
  --line: oklch(0.87 0.011 150);
  --surface: oklch(0.975 0.003 150);
  --radius: 12px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --z-nav: 20;
  --type-body: 1rem;
  --type-note: 0.875rem;
  --type-label: 0.8125rem;
  --touch-target: 44px;
}
* {
  box-sizing: border-box;
}
.hero-copy,
.hero-visual {
  min-width: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Manrope, Arial, sans-serif;
  font-size: var(--type-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
  min-height: var(--touch-target);
}
svg {
  display: block;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 5px;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.035em;
}
::selection {
  background: var(--lime);
  color: var(--ink);
}
.container {
  width: min(1240px, calc(100% - 96px));
  margin-inline: auto;
}
.icon-library {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.icon {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.6;
  stroke-linecap: square;
  flex-shrink: 0;
}
.skip-link {
  position: fixed;
  left: 16px;
  top: -100px;
  background: var(--green);
  color: var(--white);
  padding: 12px 20px;
  z-index: 30;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 29px;
  letter-spacing: -0.04em;
  font-weight: 800;
  line-height: 1;
}
.wordmark .domain {
  margin-left: -9px;
  font-size: 15px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  align-self: end;
  padding-bottom: 3px;
}
.wordmark .brand-mark {
  color: var(--green);
  margin-right: 2px;
}
nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  font-weight: 650;
}
nav a {
  display: flex;
  align-items: center;
  min-height: var(--touch-target);
  transition: color 0.2s;
}
nav a:hover {
  color: var(--green);
}
nav .nav-guide {
  border: 1px solid var(--line);
  padding: 10px 18px;
  border-radius: 6px;
}
.menu-toggle {
  display: none;
}
.hero {
  display: grid;
  grid-template-columns: 1.13fr 1fr;
  gap: 84px;
  align-items: center;
  padding-block: 88px 80px;
}
.hero-label {
  display: flex;
  gap: 9px;
  align-items: center;
  font-size: 13px;
  font-weight: 650;
}
.mini-mark {
  font-size: 25px;
  color: var(--green);
  line-height: 1;
}
.hero h1 {
  font-size: clamp(2.8rem, 4.7vw, 4.4rem);
  font-weight: 750;
  margin: 26px 0;
  line-height: 1.07;
}
.hero h1 span {
  color: var(--green);
}
.hero-intro {
  font-size: 21px;
  font-weight: 550;
  line-height: 1.5;
  letter-spacing: -0.02em;
}
.hero-description {
  color: var(--muted);
  font-size: 16px;
  margin-top: 18px;
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 27px;
  margin-top: 30px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 23px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  min-height: 48px;
  border: 0;
  transition:
    background 0.2s,
    transform 0.3s var(--ease);
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  background: var(--green);
  color: var(--white);
}
.button-primary:hover {
  background: oklch(0.3 0.09 150);
}
.text-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-color: var(--line);
}
.text-link:hover {
  text-decoration-color: var(--green);
}
.project-status {
  font-size: var(--type-label);
  color: var(--muted);
  margin-top: 23px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.hero-visual {
  position: relative;
  padding: 30px 24px 0;
  background: var(--green-light);
  border-radius: var(--radius);
}
.visual-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 650;
  padding: 0 4px 17px;
}
.example-label {
  color: var(--muted);
  font-size: var(--type-label);
  font-weight: 500;
}
.action-example {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--white);
  padding: 20px;
  border-radius: 8px;
}
.avatar {
  width: 38px;
  height: 38px;
  background: oklch(0.89 0.05 150);
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 700;
  color: var(--green);
  flex-shrink: 0;
}
.action-example strong {
  font-size: var(--type-label);
}
.action-example p {
  font-size: 14px;
  line-height: 1.5;
  margin-top: 3px;
}
.approval-bridge {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 25px 7px;
  font-size: var(--type-label);
  color: var(--green);
  font-weight: 650;
}
.approval-bridge > span:nth-child(2) {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.approval-bridge .icon {
  width: 20px;
  height: 20px;
}
.bridge-line {
  height: 1px;
  background: oklch(0.7 0.07 150);
  flex: 1;
}
.receipt-preview {
  background: var(--green);
  color: var(--white);
  padding: 25px 27px 0;
  border-radius: 10px;
  transform: rotate(-2deg);
  transform-origin: 50% 0;
  box-shadow: 0 6px 8px oklch(0.2 0.01 150 / 0.12);
}
.receipt-top {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
}
.receipt-top .brand-mark {
  width: 24px;
  height: 24px;
  stroke-width: 2;
}
.receipt-version {
  margin-left: auto;
  font-size: var(--type-label);
  opacity: 0.8;
}
.receipt-result {
  display: flex;
  align-items: center;
  gap: 17px;
  margin: 27px 0 26px;
}
.receipt-result h2 {
  font-size: 31px;
  line-height: 1.14;
  font-weight: 600;
}
.check-disc {
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  border: 1px solid oklch(1 0 0 / 0.4);
  border-radius: 50%;
  flex-shrink: 0;
  color: var(--lime);
}
.receipt-fields {
  margin: 0;
}
.receipt-fields > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: var(--type-label);
  padding: 11px 0;
  border-top: 1px solid oklch(1 0 0 / 0.2);
  flex-wrap: wrap;
}
.receipt-fields dt {
  color: oklch(0.84 0.025 150);
  flex-shrink: 0;
}
.receipt-fields dd {
  margin: 0;
  text-align: right;
  font-weight: 500;
}
.receipt-bottom {
  display: flex;
  align-items: center;
  gap: 9px;
  border-top: 1px solid oklch(1 0 0 / 0.2);
  padding: 14px 0;
  font-size: var(--type-label);
  color: oklch(0.89 0.02 150);
}
.receipt-bottom .icon {
  width: 15px;
  height: 15px;
}
.visual-caption {
  font-size: var(--type-label);
  text-align: center;
  padding: 22px 0 15px;
  color: var(--muted);
}
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 36px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-inner .wordmark {
  font-size: 25px;
}
.footer-inner p,
.footer-inner > a:last-child {
  font-size: var(--type-label);
  color: var(--muted);
}
@media (min-width: 1500px) {
  .hero {
    padding-block: 100px;
  }

}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 40px;
  }

  nav {
    gap: 20px;
  }
  .receipt-preview {
    padding: 22px 20px 0;
  }
  .receipt-result h2 {
    font-size: 27px;
  }
  .hero-actions {
    gap: 20px;
  }
  .text-link {
    font-size: 13px;
  }
  .hero-visual {
    padding: 24px 18px 0;
  }
}
@media (max-width: 800px) {
  .container {
    width: calc(100% - 40px);
  }
  .header-inner {
    height: 76px;
  }
  .wordmark {
    font-size: 26px;
  }
  .wordmark .brand-mark {
    width: 29px;
    height: 29px;
  }
  .menu-toggle {
    display: flex;
    gap: 18px;
    align-items: center;
    background: none;
    border: 1px solid var(--line);
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 13px;
    font-weight: 650;
  }
  .menu-toggle span {
    font-size: 20px;
    line-height: 1;
  }
  nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
  }
  nav.is-open {
    display: flex;
  }
  nav a {
    padding: 12px 0;
  }
  nav .nav-guide {
    margin-block: 10px 0;
    text-align: center;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-block: 52px;
    gap: 45px;
  }
  .hero h1 {
    margin-block: 24px;
  }
  .hero-copy {
    max-width: 570px;
  }
  .hero-intro {
    font-size: 20px;
  }
  .hero-description {
    font-size: 16px;
    max-width: 52ch;
  }
  .hero-visual {
    max-width: 540px;
    width: 100%;
    justify-self: center;
    padding: 24px 24px 0;
  }
  .receipt-result h2 {
    font-size: 32px;
  }
  .footer-inner {
    flex-wrap: wrap;
  }
  .footer-inner p {
    order: 3;
    flex-basis: 100%;
  }
  .project-status {
    font-size: var(--type-label);
  }
}
@media (max-width: 400px) {
  .hero-actions {
    gap: 17px;
    flex-wrap: wrap;
  }
  .hero-visual {
    padding: 22px 16px 0;
  }
  .action-example {
    padding: 15px;
    gap: 11px;
  }
  .action-example p {
    font-size: var(--type-label);
  }
  .receipt-preview {
    padding-inline: 18px;
  }
  .receipt-result h2 {
    font-size: 27px;
  }
  .approval-bridge {
    gap: 8px;
  }
  .project-status {
    font-size: var(--type-label);
  }
}
.section-space {
  padding-block: 92px;
  scroll-margin-top: 20px;
}
.section-heading {
  display: grid;
  grid-template-columns: 1.13fr 1fr;
  gap: 84px;
  align-items: end;
  margin-bottom: 48px;
}
.section-heading h2,
.principles h2,
.faq h2 {
  font-size: clamp(2.4rem, 4.3vw, 3.7rem);
  font-weight: 650;
}
.section-heading > p,
.section-heading > div > p {
  color: var(--muted);
  max-width: 47ch;
  font-size: 16px;
}
.small-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
}
.section-footnote {
  font-size: var(--type-label);
  color: var(--muted);
  margin-top: 24px;
}
.use-cases {
  padding-top: 44px;
}
.case-explorer {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}
.case-options {
  display: flex;
  flex-direction: column;
}
.case-option {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  text-align: left;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 24px 22px;
  transition:
    background 0.2s,
    color 0.2s;
}
.case-option:first-child {
  border-top: 1px solid var(--line);
}
.case-option > span:first-child {
  font-size: 25px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.025em;
}
.case-number {
  font-size: var(--type-label);
  color: var(--muted);
}
.case-option.is-active {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
  border-radius: 6px;
}
.case-option.is-active .case-number {
  color: oklch(0.9 0.02 150);
}
.case-option:not(.is-active):hover {
  background: var(--green-light);
}
.case-detail {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 35px 38px;
}
.case-detail h3 {
  font-size: 33px;
  margin: 18px 0;
  max-width: 20ch;
  line-height: 1.2;
}
.case-detail > p {
  font-size: 15px;
  color: var(--muted);
}
.case-action {
  padding: 22px 0;
  border-block: 1px solid var(--line);
  margin: 26px 0 18px;
}
.case-action > span {
  font-size: var(--type-label);
  color: var(--muted);
  display: block;
  margin-bottom: 5px;
}
.case-action > strong {
  font-size: 13px;
  font-weight: 650;
}
.case-action > p {
  font-size: 19px;
  line-height: 1.5;
  margin-top: 10px;
  letter-spacing: -0.02em;
}
.case-detail .case-boundary {
  font-size: var(--type-label);
  margin-bottom: 22px;
}
.walkthrough {
  background: var(--green);
  color: var(--white);
}
.walkthrough .section-heading > div > p {
  color: oklch(0.89 0.024 150);
}
.demo-note {
  display: block;
  font-size: var(--type-label);
  line-height: 1.6;
  color: oklch(0.86 0.025 150);
  margin-top: 14px;
}
.walkthrough-body {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.step-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-block: 10px;
}
.step-button {
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--white);
  padding: 21px 20px;
  border-radius: 8px;
  text-align: left;
  transition: background 0.2s;
}
.step-button.is-active {
  background: oklch(1 0 0 / 0.1);
  border-color: oklch(1 0 0 / 0.28);
}
.step-button:hover {
  background: oklch(1 0 0 / 0.1);
}
.step-number {
  display: grid;
  place-items: center;
  height: 40px;
  width: 40px;
  border-radius: 50%;
  border: 1px solid oklch(1 0 0 / 0.4);
  font-size: 14px;
  flex-shrink: 0;
}
.step-button.is-active .step-number {
  color: var(--green);
  background: var(--lime);
  border-color: var(--lime);
}
.step-button strong {
  font-size: 17px;
  font-weight: 600;
  display: block;
}
.step-button small {
  font-size: var(--type-label);
  color: oklch(0.86 0.024 150);
  display: block;
  margin-top: 5px;
}
.step-panel {
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  overflow: hidden;
  min-width: 0;
}
.panel-topline {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  font-size: var(--type-label);
  color: var(--muted);
}
.demo-stage {
  padding: 28px 32px;
  min-height: 460px;
}
.stage-symbol {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--green-light);
  color: var(--green);
  margin-bottom: 20px;
}
.stage-symbol .brand-mark {
  stroke-width: 1.8;
  width: 27px;
  height: 27px;
}
.demo-stage h3 {
  font-size: 30px;
  line-height: 1.15;
  font-weight: 650;
  margin-bottom: 13px;
}
.demo-stage > p {
  font-size: 14px;
  color: var(--muted);
  max-width: 52ch;
}
.stage-artifact {
  margin-top: 23px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 148px;
}
.artifact-label {
  font-size: var(--type-label);
  font-weight: 650;
  color: var(--muted);
}
.artifact-action {
  font-size: 19px;
  margin-top: 10px;
  line-height: 1.45;
  font-weight: 500;
}
.artifact-meta {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--type-label);
  color: var(--muted);
}
.artifact-meta strong {
  font-weight: 550;
  color: var(--ink);
  text-align: right;
}
.demo-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  padding: 20px 28px;
  border-top: 1px solid var(--line);
}
.demo-back {
  font-size: var(--type-label);
  font-weight: 650;
  background: transparent;
  border: 0;
  padding: 10px 0;
  min-width: 64px;
}
.demo-back:disabled {
  color: oklch(0.55 0.01 150);
  cursor: default;
}
.demo-controls .button {
  font-size: var(--type-label);
  padding: 11px 17px;
  min-height: var(--touch-target);
  min-width: 145px;
}
.step-dots {
  display: flex;
  gap: 6px;
}
.step-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line);
}
.step-dots i.is-active {
  background: var(--green);
}
.biometric-example {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-block: 7px;
}
.biometric-example .icon {
  width: 35px;
  height: 35px;
  color: var(--green);
  margin-bottom: 4px;
}
.biometric-example strong {
  font-size: 15px;
}
.biometric-example > span {
  font-size: var(--type-label);
  color: var(--muted);
}
.demo-fields {
  margin: 10px 0 0;
  font-size: var(--type-label);
}
.demo-fields > div {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding-block: 8px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.demo-fields dt {
  color: var(--muted);
  flex-shrink: 0;
}
.demo-fields dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
}
.verification-checks {
  list-style: none;
  margin: 10px 0 17px;
  padding: 0;
  font-size: var(--type-label);
}
.verification-checks li {
  display: flex;
  gap: 10px;
  margin-block: 7px;
}
.verification-checks li > span {
  color: var(--green);
  font-weight: 700;
}
.verification-checks li.is-mismatch,
.verification-checks li.is-mismatch > span {
  color: oklch(0.39 0.13 30);
}
.tamper-button {
  padding: 0;
  text-align: left;
  background: none;
  border: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: var(--type-label);
  font-weight: 650;
  color: var(--green);
}
.tamper-result {
  font-size: var(--type-label);
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.5;
}
.tamper-result.is-rejected {
  color: oklch(0.39 0.13 30);
}
.walkthrough-note {
  display: flex;
  gap: 15px;
  align-items: center;
  border-top: 1px solid oklch(1 0 0 / 0.25);
  margin-top: 40px;
  padding-top: 24px;
}
.walkthrough-note .icon {
  color: var(--lime);
  width: 20px;
  height: 20px;
}
.walkthrough-note p {
  font-size: var(--type-label);
  max-width: 72ch;
  color: oklch(0.89 0.02 150);
}
.walkthrough-note a {
  font-size: var(--type-label);
  margin-left: auto;
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.walkthrough button:focus-visible,
.walkthrough a:focus-visible {
  outline-color: var(--lime);
}
.step-panel button:focus-visible {
  outline-color: var(--green);
}
.step-enter .demo-stage {
  animation: stage-enter 0.35s var(--ease);
}
@keyframes stage-enter {
  from {
    transform: translateY(5px);
  }
  to {
    transform: translateY(0);
  }
}
.evidence-layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.evidence-layers article {
  border-top: 1px solid var(--line);
  padding-top: 23px;
  min-width: 0;
}
.layer-heading {
  display: flex;
  align-items: center;
  gap: 12px;
}
.layer-heading h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.layer-dot {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  border-radius: 50%;
}
.protocol-dot {
  background: var(--green);
}
.integrity-dot {
  background: oklch(0.62 0.09 150);
}
.presence-dot {
  background: transparent;
  border: 1px solid var(--green);
}
.planned-label {
  font-size: var(--type-label);
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  border: 1px solid var(--line);
  padding: 3px 7px;
  border-radius: 3px;
}
.layer-question {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin: 25px 0 17px;
  letter-spacing: -0.015em;
}
.evidence-layers article > p:not(.layer-question) {
  font-size: 14px;
  color: var(--muted);
}
.layer-type {
  display: block;
  margin-top: 25px;
  font-size: var(--type-label);
  font-weight: 650;
  color: var(--green);
}
.evidence-boundary {
  display: flex;
  align-items: start;
  gap: 45px;
  padding: 25px 0;
  border-block: 1px solid var(--line);
  margin-top: 45px;
}
.evidence-boundary strong {
  font-size: 14px;
  min-width: 220px;
}
.evidence-boundary p {
  font-size: 14px;
  color: var(--muted);
  max-width: 72ch;
}
.principles {
  background: var(--green-light);
}
.principles-layout {
  display: grid;
  grid-template-columns: 1.13fr 1fr;
  gap: 84px;
  align-items: start;
}
.principles h2 {
  max-width: 15ch;
}
.principles-intro {
  font-size: 17px;
  color: var(--muted);
  margin-block: 25px;
  max-width: 40ch;
}
.principle-list article {
  padding-block: 25px;
  border-bottom: 1px solid oklch(0.82 0.035 150);
}
.principle-list article:first-child {
  padding-top: 0;
}
.principle-list article:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.principle-list h3 {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.4;
  margin-bottom: 9px;
}
.principle-list p {
  font-size: 14px;
  color: var(--muted);
  max-width: 51ch;
}
.ecosystem-table > div {
  display: grid;
  grid-template-columns: 1fr 1.6fr 1.2fr;
  align-items: center;
  gap: 30px;
  border-top: 1px solid var(--line);
  padding-block: 24px;
}
.ecosystem-table > div:last-child {
  border-bottom: 1px solid var(--line);
}
.ecosystem-table h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.ecosystem-table p {
  font-size: 14px;
  color: var(--muted);
  max-width: 46ch;
}
.status-tag {
  font-size: var(--type-label);
  font-weight: 550;
  background: var(--green-light);
  color: var(--green);
  border-radius: 4px;
  padding: 5px 10px;
  display: inline-block;
  width: fit-content;
}
.ecosystem-table .status-tag {
  justify-self: end;
}
.status-planned {
  background: var(--surface);
  color: var(--muted);
}
.project-stage {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 30px;
  align-items: start;
}
.stage-label {
  font-size: 13px;
  font-weight: 650;
}
.project-stage p {
  font-size: 13px;
  color: var(--muted);
  max-width: 65ch;
}
.project-stage a {
  justify-self: end;
  font-size: var(--type-label);
}
.faq {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  border-top: 1px solid var(--line);
}
.faq-heading {
  position: sticky;
  top: 130px;
  align-self: start;
}
.faq-heading > p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 25px;
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list details:first-child {
  border-top: 1px solid var(--line);
}
.faq-list summary {
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  line-height: 1.5;
  padding-block: 21px;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary > span {
  font-size: 24px;
  font-weight: 400;
  color: var(--green);
  transition: transform 0.25s;
  line-height: 1;
}
.faq-list details[open] summary > span {
  transform: rotate(45deg);
}
.faq-list details > p {
  font-size: 14px;
  color: var(--muted);
  padding: 0 35px 24px 0;
  max-width: 65ch;
}
.closing {
  padding: 68px 30px 75px;
  text-align: center;
  background: var(--surface);
  margin-block: 0 80px;
  border-radius: var(--radius);
}
.closing-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  background: var(--green-light);
  border-radius: 50%;
  color: var(--green);
  margin: 0 auto 25px;
}
.closing-mark .brand-mark {
  width: 29px;
  height: 29px;
  stroke-width: 2;
}
.closing h2 {
  font-size: clamp(2.5rem, 4vw, 3.6rem);
  font-weight: 650;
}
.closing p {
  font-size: 16px;
  color: var(--muted);
  margin: 20px 0 25px;
}
.name-note {
  display: block;
  margin-top: 25px;
  color: var(--muted);
  font-size: var(--type-label);
}
.footer-links {
  display: flex;
  gap: 24px;
  font-size: var(--type-label);
  color: var(--muted);
}
.footer-links a:hover {
  color: var(--green);
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
}
.noscript-note {
  padding-block: 20px;
  color: var(--muted);
  font-size: 14px;
}
.guide-layout {
  padding-block: 64px 80px;
}
.guide-toc {
  position: sticky;
  top: 132px;
  max-height: calc(100dvh - 156px);
  overflow-y: auto;
  align-self: start;
  grid-column: 1;
  grid-row: 1 / span 14;
}
.guide-toc > summary {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
  list-style: none;
  pointer-events: none;
}
.guide-toc > summary::-webkit-details-marker {
  display: none;
}
.guide-toc nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  font-size: 13px;
  font-weight: 500;
  border-top: 1px solid var(--line);
  padding-top: 13px;
}
.guide-toc nav a {
  padding: 8px 0;
  color: var(--muted);
}
.guide-toc nav a:hover {
  color: var(--green);
}
.guide-content {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  column-gap: 88px;
  min-width: 0;
}
.guide-content > :not(.guide-toc) {
  grid-column: 2;
  min-width: 0;
}
.guide-label {
  font-size: 13px;
  color: var(--green);
  font-weight: 650;
}
.guide-intro h1 {
  font-size: clamp(3rem, 5vw, 4.7rem);
  margin: 22px 0;
  font-weight: 650;
}
.guide-content p {
  color: var(--muted);
  font-size: 15px;
  max-width: 70ch;
}
.guide-content .guide-lead {
  font-size: 22px;
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 21px;
  letter-spacing: -0.02em;
}
.guide-intro > p + p {
  margin-top: 18px;
}
.guide-status {
  margin-top: 28px;
  padding: 18px 22px;
  border-radius: 6px;
  background: var(--green-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--green);
}
.guide-status > strong {
  font-weight: 700;
}
.guide-section {
  padding-top: 50px;
  margin-top: 48px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 115px;
}
.guide-section h2 {
  font-size: 32px;
  font-weight: 650;
  margin-bottom: 24px;
}
.guide-section h3 {
  font-size: 21px;
  line-height: 1.3;
  margin: 28px 0 14px;
  font-weight: 650;
}
.guide-section > p {
  margin-block: 18px;
}
.guide-sequence {
  padding-left: 24px;
  margin: 28px 0;
}
.guide-sequence li {
  padding-left: 9px;
  margin-block: 25px;
}
.guide-sequence li::marker {
  color: var(--green);
  font-weight: 700;
  font-size: 14px;
}
.guide-sequence strong {
  font-size: 16px;
}
.guide-sequence li p {
  margin-top: 7px;
  font-size: 14px;
}
.guide-callout {
  padding: 23px 25px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-block: 28px;
}
.guide-callout > strong {
  font-size: 14px;
}
.guide-callout p {
  margin-top: 9px;
  font-size: 14px;
}
.code-example {
  background: var(--green);
  color: var(--white);
  border-radius: 8px;
  margin-block: 25px;
  overflow: hidden;
}
.code-example > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 15px 22px;
  border-bottom: 1px solid oklch(1 0 0 / 0.2);
  font-size: var(--type-label);
  color: oklch(0.9 0.02 150);
}
.code-example button {
  font-size: var(--type-label);
  padding: 5px 9px;
  border: 1px solid oklch(1 0 0 / 0.3);
  border-radius: 4px;
  background: none;
  color: var(--white);
  white-space: nowrap;
}
.code-example button:focus-visible {
  outline-color: var(--lime);
}
pre {
  margin: 0;
  overflow: auto;
  padding: 25px 22px;
  font-size: var(--type-label);
  line-height: 1.9;
  tab-size: 2;
}
code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.85em;
}
pre code {
  font-size: inherit;
}
.guide-definition-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.guide-definition-row strong {
  font-size: 13px;
}
.guide-definition-row p {
  font-size: 14px;
}
.responsibility-list article {
  margin-block: 25px;
}
.responsibility-list h3 {
  font-size: 18px;
  margin: 0 0 9px;
}
.responsibility-list p {
  font-size: 14px;
}
.guide-bullets {
  padding-left: 20px;
  color: var(--muted);
  font-size: 15px;
}
.guide-bullets li {
  margin-block: 16px;
  padding-left: 5px;
}
.guide-bullets strong {
  color: var(--ink);
  font-weight: 600;
}
.boundary-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-block: 25px;
}
.boundary-table > div {
  padding: 22px;
  background: var(--surface);
  border-radius: 8px;
}
.boundary-table strong {
  font-size: 14px;
}
.boundary-table p {
  font-size: 14px;
  margin-top: 12px;
}
.implementation-status {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-block: 28px;
}
.implementation-status > div {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.implementation-status h3 {
  font-size: 18px;
  margin: 17px 0 12px;
}
.implementation-status p {
  font-size: 14px;
}
.status-date {
  font-size: var(--type-label) !important;
}
.glossary {
  margin: 0;
}
.glossary > div {
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}
.glossary dt {
  font-size: 15px;
  font-weight: 650;
  margin-bottom: 7px;
}
.glossary dd {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  max-width: 65ch;
}
.guide-end {
  background: var(--green-light);
  padding: 35px;
  border-radius: 8px;
  margin-top: 50px;
}
.guide-end h2 {
  font-size: 28px;
  margin-bottom: 16px;
}
.guide-end p {
  font-size: 14px;
  max-width: 55ch;
  margin-bottom: 24px;
}
@media (max-width: 1100px) {
  .section-heading,
  .principles-layout {
    gap: 40px;
  }
  .case-explorer,
  .walkthrough-body,
  .faq {
    gap: 35px;
  }
  .section-space {
    padding-block: 75px;
  }
  .use-cases {
    padding-top: 32px;
  }
  .case-detail {
    padding: 28px;
  }
  .case-detail h3 {
    font-size: 29px;
  }
  .case-option > span:first-child {
    font-size: 23px;
  }
  .demo-stage {
    padding: 25px;
    min-height: 480px;
  }
  .demo-stage h3 {
    font-size: 27px;
  }
  .demo-controls {
    padding: 18px 24px;
    gap: 10px;
  }
  .step-button {
    padding: 20px 15px;
    gap: 15px;
  }
  .step-button strong {
    font-size: 15px;
  }
  .step-button small {
    font-size: var(--type-label);
  }
  .evidence-layers {
    gap: 25px;
  }
  .layer-question {
    font-size: 16px;
  }
  .ecosystem-table > div {
    gap: 20px;
    grid-template-columns: 1fr 1.4fr 1.25fr;
  }
  .guide-content {
    grid-template-columns: 185px minmax(0, 1fr);
    column-gap: 40px;
  }
  .guide-toc nav {
    font-size: var(--type-label);
  }
  .footer-inner {
    gap: 20px;
  }
  .footer-links {
    gap: 18px;
  }
  .footer-inner p {
    font-size: var(--type-label);
  }
}
@media (max-width: 800px) {
  .section-space {
    padding-block: 56px;
  }
  .section-heading {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-bottom: 32px;
  }
  .section-heading h2,
  .principles h2,
  .faq h2 {
    font-size: clamp(2.2rem, 7vw, 3rem);
  }
  .section-heading > p,
  .section-heading > div > p {
    max-width: 65ch;
    font-size: 15px;
  }
  .case-explorer {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .case-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .case-option,
  .case-option:first-child {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 16px;
    gap: 6px;
  }
  .case-option > span:first-child {
    font-size: 18px;
  }
  .case-detail {
    padding: 27px;
  }
  .case-detail h3 {
    max-width: 25ch;
    font-size: 28px;
  }
  .case-action > p {
    font-size: 19px;
  }
  .use-cases {
    padding-top: 10px;
  }
  .section-footnote {
    font-size: var(--type-label);
  }
  .walkthrough-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .step-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 0;
  }
  .step-button {
    padding: 14px 12px;
    gap: 10px;
  }
  .step-button small {
    display: none;
  }
  .step-number {
    width: 29px;
    height: 29px;
    font-size: var(--type-label);
  }
  .demo-stage {
    min-height: 420px;
    padding: 27px;
  }
  .demo-stage h3 {
    font-size: 29px;
  }
  .stage-artifact {
    min-height: 146px;
  }
  .walkthrough-note {
    align-items: start;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
  }
  .walkthrough-note p {
    flex: 1;
    min-width: 200px;
  }
  .walkthrough-note a {
    margin-left: 32px;
  }
  .panel-topline {
    padding: 17px 24px;
  }
  .demo-controls {
    padding: 18px 24px;
  }
  .evidence-layers {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .layer-question {
    margin-block: 17px 10px;
    font-size: 18px;
  }
  .layer-type {
    margin-top: 16px;
  }
  .evidence-boundary {
    flex-direction: column;
    gap: 10px;
    margin-top: 28px;
    padding-block: 22px;
  }
  .evidence-boundary strong {
    min-width: 0;
  }
  .principles-layout {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .principles h2 {
    max-width: 19ch;
  }
  .principles-intro {
    max-width: 55ch;
    font-size: 16px;
  }
  .principle-list article {
    padding-block: 22px;
  }
  .principle-list p {
    max-width: 65ch;
  }
  .ecosystem-table > div {
    grid-template-columns: 1fr auto;
    gap: 12px 20px;
    padding-block: 22px;
  }
  .ecosystem-table h3 {
    font-size: 16px;
  }
  .ecosystem-table p {
    grid-column: 1/-1;
    grid-row: 2;
    font-size: 13px;
    max-width: 65ch;
  }
  .ecosystem-table .status-tag {
    font-size: var(--type-label);
    max-width: 180px;
    text-align: right;
  }
  .project-stage {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .project-stage a {
    justify-self: start;
  }
  .faq {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .faq-heading {
    position: static;
  }
  .faq-heading > p {
    margin-top: 20px;
  }
  .faq-list summary {
    font-size: 14px;
    padding-block: 20px;
  }
  .faq-list details > p {
    font-size: 14px;
  }
  .closing {
    margin-bottom: 48px;
    padding: 45px 20px;
  }
  .closing h2 {
    font-size: 34px;
  }
  .closing p {
    font-size: 15px;
  }
  .footer-links {
    font-size: var(--type-label);
    gap: 15px;
  }
  .footer-inner p {
    font-size: var(--type-label);
  }
  .guide-layout {
    padding-block: 38px 50px;
  }
  .guide-content {
    display: block;
  }
  .guide-toc {
    position: static;
    max-height: none;
    overflow: visible;
    margin-top: 30px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .guide-toc > summary {
    display: list-item;
    list-style: disclosure-closed inside;
    pointer-events: auto;
    cursor: pointer;
    min-height: var(--touch-target);
    padding-block: 12px;
    margin: 0;
    font-size: var(--type-note);
  }
  .guide-toc[open] > summary {
    list-style-type: disclosure-open;
  }
  .guide-toc > summary::-webkit-details-marker {
    display: inline;
  }
  .guide-toc nav {
    position: static;
    display: grid;
    grid-template-columns: 1fr;
    border: 0;
    padding: 0 0 12px;
    gap: 0;
    background: none;
  }
  .guide-toc nav a {
    padding: 8px 0;
    font-size: var(--type-note);
  }
  .guide-intro h1 {
    font-size: clamp(2.8rem, 9vw, 4rem);
  }
  .guide-content .guide-lead {
    font-size: 20px;
  }
  .guide-section {
    padding-top: 35px;
    margin-top: 35px;
    scroll-margin-top: 100px;
  }
  .guide-section h2 {
    font-size: 28px;
  }
  .guide-content p {
    font-size: 14px;
  }
  .guide-definition-row {
    grid-template-columns: 120px 1fr;
    gap: 15px;
  }
  .guide-callout {
    padding: 20px;
  }
  .code-example > div {
    padding: 12px 16px;
    font-size: var(--type-label);
  }
  .code-example button {
    font-size: var(--type-label);
  }
  pre {
    padding: 20px 16px;
    font-size: var(--type-label);
  }
  .boundary-table {
    gap: 16px;
  }
  .boundary-table > div {
    padding: 18px;
  }
  .implementation-status {
    gap: 25px;
  }
  .guide-end {
    padding: 28px;
  }
  .guide-status {
    font-size: var(--type-label);
  }
  .guide-end h2 {
    font-size: 26px;
  }
}
@media (max-width: 400px) {
  .case-option {
    padding: 14px 11px;
  }
  .case-option > span:first-child {
    font-size: 16px;
  }
  .case-detail {
    padding: 24px;
  }
  .step-button {
    padding: 12px 9px;
    gap: 8px;
  }
  .step-number {
    width: 25px;
    height: 25px;
  }
  .demo-controls {
    padding-inline: 20px;
    gap: 8px;
  }
  .demo-controls .button {
    min-width: 125px;
    padding-inline: 12px;
  }
  .demo-back {
    min-width: 55px;
  }
  .demo-stage {
    padding: 23px;
    min-height: 470px;
  }
  .stage-artifact {
    padding: 16px;
  }
  .ecosystem-table .status-tag {
    max-width: 145px;
    font-size: var(--type-label);
  }
  .footer-inner {
    align-items: start;
  }
  .footer-links {
    flex-wrap: wrap;
    max-width: 170px;
    justify-content: flex-end;
    gap: 9px 15px;
  }
  .boundary-table,
  .implementation-status {
    grid-template-columns: 1fr;
  }
  .guide-definition-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .guide-content .guide-lead {
    font-size: 18px;
  }
  .guide-intro h1 {
    font-size: 2.8rem;
  }
}
/* Prose remains comfortably readable at every breakpoint. */

.case-detail > p,
.evidence-layers article > p:not(.layer-question),
.principle-list p,
.ecosystem-table p,
.faq-list details > p,
.guide-content p,
.guide-sequence li p,
.guide-callout p,
.guide-definition-row p,
.responsibility-list p,
.boundary-table p,
.implementation-status p,
.glossary dd {
  font-size: 16px;
}
.demo-stage > p {
  font-size: 15px;
}
.project-stage p {
  font-size: 14px;
}
.guide-toc nav a {
  font-size: 14px;
}
.guide-bullets {
  font-size: 16px;
}
.case-detail .case-boundary {
  font-size: 13px;
}
.panel-topline,
.artifact-label,
.case-action > span,
.layer-type,
.walkthrough-note p,
.walkthrough-note a,
.demo-note {
  font-size: var(--type-label);
}
.demo-fields,
.verification-checks {
  font-size: var(--type-label);
}
.tamper-button,
.tamper-result {
  font-size: var(--type-label);
}
@media (max-width: 800px) {

  .case-detail > p,
  .evidence-layers article > p:not(.layer-question),
  .principle-list p,
  .ecosystem-table p,
  .faq-list details > p,
  .guide-content p {
    font-size: 16px;
  }
  .guide-content .guide-lead {
    font-size: 20px;
  }
  .demo-stage {
    min-height: 450px;
  }
  .project-stage p {
    font-size: 14px;
  }
  .hero-intro {
    font-size: 19px;
  }
}
@media (max-width: 400px) {

  .header-inner {
    gap: 12px;
  }
  .header-inner .wordmark {
    font-size: 24px;
  }
  .header-inner .brand-mark {
    width: 26px;
    height: 26px;
  }
  .demo-stage {
    min-height: 500px;
  }
}
.hero {
  padding-top: 64px;
}
.hero-intro {
  font-size: 19px;
  max-width: 45ch;
}
.approval-story {
  padding-block: 20px 70px;
}
.approval-story .section-heading {
  margin-bottom: 30px;
}
.approval-story .section-heading h2 {
  font-size: clamp(2.2rem, 3.3vw, 3rem);
}
.approval-story-boundary {
  display: flex;
  align-items: start;
  gap: 32px;
  margin-top: 30px;
  background: var(--green-light);
  padding: 24px;
  border-radius: 8px;
}
.approval-story-boundary strong {
  font-size: 14px;
  min-width: 220px;
  max-width: 25ch;
  line-height: 1.5;
}
.approval-story-boundary p {
  color: var(--muted);
  font-size: 14px;
  max-width: 75ch;
}
.receipt-check-action {
  font-size: 16px;
  font-weight: 550;
  line-height: 1.5;
  margin-top: 10px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}
.spam-economics {
  padding-block: 58px 0;
  border-top: 1px solid var(--line);
}
.spam-economics .section-heading {
  margin-bottom: 34px;
}
.spam-example {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 70px;
  padding: 36px;
  background: var(--green-light);
  border-radius: var(--radius);
}
.spam-example-copy h3 {
  margin-block: 14px;
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  line-height: 1.15;
  font-weight: 650;
}
.spam-example-copy p {
  color: var(--muted);
  font-size: 15px;
}
.spam-comparison {
  margin: 0;
  align-self: center;
}
.spam-comparison > div {
  padding-block: 25px;
  border-top: 1px solid oklch(0.8 0.035 150);
}
.spam-comparison > div:last-child {
  border-bottom: 1px solid oklch(0.8 0.035 150);
}
.spam-comparison dt {
  font-size: 15px;
  color: var(--muted);
}
.spam-comparison dd {
  margin: 6px 0 0;
  color: var(--green);
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.025em;
}
@media (max-width: 800px) {
  .hero {
    padding-top: 45px;
  }

  .approval-story {
    padding-block: 12px 45px;
  }
  .approval-story-boundary {
    flex-direction: column;
    gap: 10px;
    padding: 22px;
  }
  .approval-story-boundary strong {
    min-width: 0;
    max-width: none;
  }
  .spam-economics {
    padding-top: 40px;
  }
  .spam-example {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 26px;
  }
  .spam-example-copy h3 {
    font-size: 27px;
  }
  .spam-comparison > div {
    padding-block: 20px;
  }
  .case-option[data-case="agent"] {
    grid-column: 1 / -1;
  }
}
@media (max-width: 400px) {

  .hero-intro {
    font-size: 18px;
  }
}
@media (max-width: 800px) {
  .hero h1 {
    font-size: clamp(2.5rem, 8.4vw, 4.15rem);
  }
  .receipt-fields > div,
  .demo-fields > div {
    flex-direction: column;
    gap: 5px;
  }
  .receipt-fields dd,
  .demo-fields dd {
    text-align: left;
  }
  .footer-inner {
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .footer-links {
    max-width: none;
    justify-content: flex-start;
    gap: 0 20px;
  }
}
@media (max-width: 400px) {
  .hero h1 {
    font-size: clamp(2rem, 9.8vw, 2.8rem);
  }
  .step-list {
    grid-template-columns: 1fr;
  }
  .step-button {
    padding: 12px;
  }
}
.stage-artifact.is-phone-demo {
  padding: 8px 0 0;
  background: transparent;
  border: 0;
}
.phone-demo {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  align-items: center;
  gap: 32px;
}
.approval-phone {
  width: 216px;
  position: relative;
  padding: 7px;
  background: var(--ink);
  border-radius: 34px;
  box-shadow: 0 14px 30px oklch(0.2 0.014 150 / 0.13);
}
.phone-screen {
  position: relative;
  min-height: 346px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 17px 27px;
  background: var(--green-light);
  border-radius: 28px;
  text-align: center;
}
.phone-screen::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  width: 64px;
  height: 17px;
  border-radius: 12px;
  background: var(--ink);
  transform: translateX(-50%);
}
.phone-screen::after {
  content: "";
  position: absolute;
  bottom: 10px;
  left: 50%;
  width: 68px;
  height: 4px;
  background: var(--ink);
  border-radius: 2px;
  transform: translateX(-50%);
}
.phone-screen strong {
  font-size: var(--type-note);
  line-height: 1.4;
}
.phone-screen p {
  font-size: var(--type-label);
  line-height: 1.5;
  margin-top: 9px;
}
.phone-screen .phone-action {
  margin-top: 0;
  font-size: var(--type-note);
  font-weight: 650;
}
.phone-screen .phone-auth-method {
  font-weight: 650;
}
.face-id-visual {
  position: relative;
  flex-shrink: 0;
  width: 76px;
  height: 76px;
  margin: 25px 0 18px;
  color: var(--green);
  perspective: 220px;
}
.face-id-glyph,
.face-id-tick {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.face-id-glyph {
  opacity: 1;
  transition: opacity 180ms ease-out;
}
.face-id-orbit {
  position: absolute;
  inset: 2px;
  border: 2px solid var(--green);
  border-radius: 50%;
  opacity: 0;
}
.face-id-orbit--two {
  border-color: oklch(0.57 0.11 160);
}
.face-id-orbit--three {
  border-color: oklch(0.69 0.12 125);
}
.face-id-tick {
  opacity: 0;
}
.face-id-tick path {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}
.phone-status {
  display: block;
  color: var(--green);
  font-size: var(--type-label);
  font-weight: 650;
  line-height: 1.5;
  min-height: 2.25rem;
}
.phone-side-button {
  position: absolute;
  right: -28px;
  top: 88px;
  width: 44px;
  height: 90px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
}
.phone-side-key {
  width: 6px;
  height: 52px;
  border-radius: 3px;
  background: var(--ink);
  transition: background 150ms ease-out, transform 150ms ease-out;
}
.phone-side-button:hover .phone-side-key,
.phone-side-button:focus-visible .phone-side-key {
  background: var(--green);
}
.phone-side-button:active .phone-side-key {
  transform: translateX(-3px);
}
.phone-demo-copy {
  min-width: 0;
}
.phone-demo-copy strong {
  font-size: 18px;
  font-weight: 650;
  line-height: 1.4;
}
.phone-demo-copy p {
  margin-top: 12px;
  font-size: var(--type-note);
  line-height: 1.6;
  color: var(--muted);
}
.phone-demo-copy .phone-instruction {
  margin-top: 0;
  font-size: 18px;
  font-weight: 650;
  line-height: 1.4;
  color: var(--ink);
}
.phone-demo-copy .phone-demo-label {
  font-size: var(--type-label);
}
.phone-demo-copy .phone-status {
  margin-top: 18px;
  color: var(--green);
  font-size: var(--type-label);
}
.phone-play-button {
  margin-top: 18px;
  min-height: var(--touch-target);
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--green);
  font-size: var(--type-label);
  font-weight: 700;
}
.phone-play-button:hover {
  background: var(--green-light);
}
.phone-play-button[aria-disabled="true"],
.phone-side-button[aria-disabled="true"] {
  cursor: wait;
}
.phone-demo[data-state="pressing"] .phone-side-key {
  animation: side-key-press 180ms ease-out;
  background: var(--green);
}
.phone-demo[data-state="scanning"] .face-id-glyph,
.phone-demo[data-state="approved"] .face-id-glyph {
  opacity: 0;
}
.phone-demo[data-state="scanning"] .face-id-orbit {
  opacity: 1;
  animation: face-id-scan-one 1500ms var(--ease);
}
.phone-demo[data-state="scanning"] .face-id-orbit--two {
  animation-name: face-id-scan-two;
}
.phone-demo[data-state="scanning"] .face-id-orbit--three {
  animation-name: face-id-scan-three;
}
.phone-demo[data-state="approved"] .face-id-tick {
  opacity: 1;
}
.phone-demo[data-state="approved"] .face-id-tick path {
  stroke-dashoffset: 0;
  animation: face-id-confirm 350ms ease-out;
}
@keyframes side-key-press {
  50% { transform: translateX(-3px); }
}
@keyframes face-id-scan-one {
  from { transform: rotateX(0); }
  to { transform: rotateX(360deg); }
}
@keyframes face-id-scan-two {
  from { transform: rotateY(0); }
  to { transform: rotateY(360deg); }
}
@keyframes face-id-scan-three {
  from { transform: rotateX(0) rotateY(0); }
  to { transform: rotateX(360deg) rotateY(360deg); }
}
@keyframes face-id-confirm {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}
@media (max-width: 1100px) {
  .phone-demo {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 26px;
  }
  .phone-demo-copy {
    max-width: 36ch;
    text-align: center;
  }
  .approval-phone {
    width: min(216px, calc(100% - 36px));
    margin-right: 36px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}