/* Hallmark · macrostructure: Feature Stack · hero: H1 Marquee · section: S3 Sticky Pinned
 * theme: logo-led monochrome · genre: editorial · tone: human, restrained, exact · anchor: black pause bars
 * pre-emit critique: P5 H5 E5 S5 R5 V5 · contrast: pass (40–41) · slop: pass (42–45)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · mobile: pass (34, 49, 50–57)
 * display: General Sans · body: SF Pro system
 * nav: N12 Banner + retract · CTA: C1 Outlined Chip · footer: Ft1 Mast-headed
 * studied: TapOut (primary narrative) + ScreenZen (secondary clarity) · original product UI only
 */

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

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-block-start: calc(var(--bar-height) + var(--space-lg));
}

body {
  min-inline-size: 20rem;
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

p,
h1,
h2,
h3,
figure,
ol,
ul {
  margin: 0;
}

h1,
h2,
h3 {
  min-inline-size: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
  text-wrap: balance;
}

h1 {
  font-size: var(--text-display);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

h2 {
  max-inline-size: 18ch;
  font-size: clamp(2.25rem, 4.8vw, 4.3rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h3 {
  font-size: clamp(1.45rem, 2.7vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

mark {
  background: transparent;
  color: var(--color-accent-deep);
}

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  border: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-modal);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-control);
  background: var(--color-panel);
  color: var(--color-panel-ink);
  white-space: nowrap;
  transform: translateY(-160%);
}

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

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

.shell {
  inline-size: min(100%, var(--shell));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

/* N12 · a real beta announcement, then a quiet working nav. */
.site-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky-nav);
  background: var(--color-paper);
  transition: transform var(--dur-short) var(--ease-out);
}

.site-nav.is-compact {
  transform: translateY(calc(-1 * var(--banner-height)));
}

.site-nav.is-dismissed {
  transform: none;
}

.site-nav.is-dismissed .site-nav__banner {
  display: none;
}

.site-nav__banner {
  position: relative;
  display: grid;
  place-items: center;
  min-block-size: var(--banner-height);
  padding-inline: calc(var(--page-gutter) + var(--space-xl));
  background: var(--color-panel);
  color: var(--color-panel-ink);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.2;
  text-align: center;
}

.site-nav__banner p,
.site-nav__banner a {
  white-space: nowrap;
}

.banner-wide {
  display: none;
}

.site-nav__banner a {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  text-decoration-color: var(--color-accent);
}

.banner-dismiss {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: max(var(--space-xs), env(safe-area-inset-right));
  display: grid;
  place-items: center;
  inline-size: 44px;
  block-size: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-panel-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  cursor: pointer;
}

.site-nav__bar {
  min-block-size: var(--bar-height);
  border-block-end: 1px solid var(--color-rule);
  background: var(--color-paper);
}

.site-nav__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  min-block-size: var(--bar-height);
  gap: var(--space-md);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-block-size: 44px;
  justify-self: start;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  letter-spacing: -0.022em;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark__icon {
  inline-size: 1.28rem;
  block-size: 2rem;
  border-radius: 0;
}

.site-nav__links {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding: 0;
  list-style: none;
}

.site-nav__links a {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.nav-cta,
.button,
.copy-button,
.outlined-chip,
.site-footer__links a {
  white-space: nowrap;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 44px;
  padding-inline: var(--space-md);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-control);
  background: var(--color-ink);
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}

.hero-marquee {
  display: flex;
  align-items: flex-end;
  min-block-size: clamp(29rem, 69svh, 42rem);
  padding-block: var(--space-2xl) var(--space-3xl);
}

.hero-marquee h1 {
  max-inline-size: 13.5ch;
  animation: hero-settle var(--dur-long) var(--ease-out) both;
}

.intro-rail {
  border-block: 1px solid var(--color-panel-2);
  background: var(--color-panel);
  color: var(--color-panel-ink);
}

.intro-rail__inner {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-xl);
}

.intro-rail__inner > p {
  max-inline-size: 41ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.1vw, 2.65rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.intro-rail__action {
  display: grid;
  align-content: end;
  justify-items: start;
  gap: var(--space-md);
}

.intro-rail__action > span {
  max-inline-size: 34ch;
  color: var(--color-panel-ink);
  font-size: var(--text-sm);
}

.button,
.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 52px;
  padding-inline: var(--space-lg);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-control);
  background: var(--color-ink);
  color: var(--color-paper);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}

.intro-rail .button {
  border-color: var(--color-panel-ink);
  background: var(--color-panel-ink);
  color: var(--color-panel);
}

.button:active,
.copy-button:active,
.nav-cta:active,
.outlined-chip:active {
  transform: translateY(1px);
}

.button[disabled],
.copy-button[disabled] {
  opacity: 0.55;
  cursor: wait;
}

.problem {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl) var(--space-3xl);
}

.problem__head {
  display: grid;
  align-content: start;
  gap: var(--space-lg);
}

.problem__head > p {
  max-inline-size: 48ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.problem__notes {
  display: grid;
}

.problem__notes article {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-xl);
  border-block-start: 1px solid var(--color-rule);
}

.problem__notes article:last-child {
  border-block-end: 1px solid var(--color-rule);
}

.problem__notes h3 {
  font-size: clamp(1.45rem, 2.4vw, 1.95rem);
}

.problem__notes p {
  max-inline-size: 52ch;
  color: var(--color-ink-2);
}

.mechanism {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-3xl) var(--space-4xl);
}

.mechanism__sticky {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: var(--space-lg);
}

.mechanism__sticky > p {
  max-inline-size: 46ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.outlined-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 44px;
  padding-inline: var(--space-md);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-ink);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}

.mechanism__stack {
  display: grid;
  gap: var(--space-lg);
  min-inline-size: 0;
}

.mechanism-card {
  display: grid;
  align-content: space-between;
  gap: var(--space-xl);
  min-inline-size: 0;
  padding: clamp(var(--space-lg), 5vw, var(--space-2xl));
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper-raised);
  color: var(--color-ink);
}

.mechanism-card--ladder {
  background: var(--color-sun);
}

.mechanism-card--demo {
  background: var(--color-panel);
  color: var(--color-panel-ink);
}

.mechanism-card--return {
  background: var(--color-peach);
}

.mechanism-card__copy {
  display: grid;
  gap: var(--space-md);
}

.mechanism-card__copy h3 {
  max-inline-size: 15ch;
}

.mechanism-card__copy p {
  max-inline-size: 53ch;
  color: var(--color-ink-2);
}

.mechanism-card--demo .mechanism-card__copy p {
  color: var(--color-panel-ink);
}

.allowance-line {
  display: grid;
  gap: var(--space-md);
}

.allowance-line > div:first-child {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
}

.allowance-line strong,
.pause-ladder strong,
.pause-demo__dial span {
  font-variant-numeric: tabular-nums;
}

.allowance-line strong {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1;
}

.allowance-line__track {
  block-size: 0.7rem;
  overflow: hidden;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-round);
  background: var(--color-paper-2);
}

.allowance-line__track span {
  display: block;
  inline-size: 76%;
  block-size: 100%;
  background: var(--color-ink);
}

.pause-ladder {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: 1px solid var(--color-ink);
}

.pause-ladder span {
  display: grid;
  align-content: center;
  min-inline-size: 0;
  min-block-size: 8rem;
  padding: var(--space-sm);
  border-inline-end: 1px solid var(--color-ink);
  font-size: var(--text-sm);
  text-align: center;
}

.pause-ladder span:last-child {
  border-inline-end: 0;
}

.pause-ladder strong {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.9;
}

.pause-demo {
  display: grid;
  justify-items: start;
  gap: var(--space-md);
}

.pause-demo__dial {
  position: relative;
  display: grid;
  place-items: center;
  inline-size: clamp(8rem, 28vw, 11rem);
  aspect-ratio: 1;
}

.pause-demo__dial svg {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  transform: rotate(-90deg);
}

.pause-demo__track,
.pause-demo__progress {
  fill: none;
  stroke-width: 2;
}

.pause-demo__track {
  stroke: var(--color-panel-2);
}

.pause-demo__progress {
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: calc(100 - var(--progress, 0));
  transition: stroke-dashoffset 900ms var(--ease-in-out);
}

.pause-demo__dial span {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
}

.demo-note {
  min-block-size: 1.6em;
  color: var(--color-panel-ink);
  font-size: var(--text-sm);
}

.mechanism-card--demo .button {
  border-color: var(--color-panel-ink);
  background: var(--color-panel-ink);
  color: var(--color-panel);
}

.return-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.return-path span {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  padding-inline: var(--space-sm);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-control);
  font-weight: 600;
  white-space: nowrap;
}

.return-path i {
  font-style: normal;
}

.privacy-band {
  background: var(--color-panel);
  color: var(--color-panel-ink);
}

.privacy-band__inner {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl);
}

.privacy-band__copy {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: var(--space-xl);
}

.privacy-band__copy > p {
  max-inline-size: 54ch;
  font-size: var(--text-md);
}

.privacy-facts {
  display: grid;
  inline-size: 100%;
  padding: 0;
  border-block-start: 1px solid var(--color-panel-2);
  list-style: none;
}

.privacy-facts li {
  padding-block: var(--space-sm);
  border-block-end: 1px solid var(--color-panel-2);
}

.outlined-chip--dark {
  border-color: var(--color-panel-ink);
  color: var(--color-panel-ink);
}

.faq {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl);
}

.faq__head {
  display: grid;
  gap: var(--space-lg);
}

.faq__head p {
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.faq-list {
  border-block-start: 1px solid var(--color-rule);
}

.faq-list details {
  border-block-end: 1px solid var(--color-rule);
}

.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-block-size: 4.5rem;
  padding-block: var(--space-md);
  padding-inline-end: var(--space-xs);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--color-accent-deep);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-inline-size: 65ch;
  padding-block-end: var(--space-xl);
  color: var(--color-ink-2);
}

.beta-band {
  border-block-start: 1px solid var(--color-rule);
  background: var(--color-paper-2);
}

.beta-band__inner {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl);
}

.beta-copy {
  display: grid;
  align-content: start;
  gap: var(--space-lg);
}

.beta-copy > p {
  max-inline-size: 48ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.beta-copy__note {
  display: grid;
  gap: var(--space-xs);
  max-inline-size: 46ch;
  padding-block: var(--space-lg);
  border-block: 1px solid var(--color-rule);
}

.beta-copy__note span {
  color: var(--color-ink-2);
}

.application-form {
  display: grid;
  gap: var(--space-md);
  align-content: start;
  padding: clamp(var(--space-lg), 4vw, var(--space-xl));
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper-raised);
}

.field {
  display: grid;
  gap: var(--space-xs);
}

.field label {
  font-weight: 600;
}

.field input,
.field select,
.field textarea {
  inline-size: 100%;
  min-block-size: 52px;
  padding-inline: var(--space-md) var(--space-xl);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-control);
  outline: 2px solid transparent;
  outline-offset: 1px;
  background: var(--color-paper);
  color: var(--color-ink);
}

.field textarea {
  min-block-size: 7rem;
  padding-block: var(--space-sm);
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline-color: var(--color-focus);
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--color-error);
  background: var(--color-error-soft);
}

.field input:disabled,
.field select:disabled,
.field textarea:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.field__helper {
  min-block-size: 1.5em;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.field__helper[data-state="error"],
.form-status[data-state="error"] {
  color: var(--color-error);
}

.form-consent {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-sm);
  min-block-size: 44px;
  padding-block: var(--space-xs);
  cursor: pointer;
}

.form-consent input {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  margin-block-start: var(--space-3xs);
  accent-color: var(--color-accent-deep);
}

.form-consent input[aria-invalid="true"] {
  outline: 2px solid var(--color-error);
  outline-offset: 2px;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.copy-button {
  border-color: var(--color-rule);
  background: transparent;
  color: var(--color-ink);
}

.form-status {
  min-block-size: 1.6em;
  color: var(--color-neutral);
  font-size: var(--text-sm);
}

.form-status[data-state="success"] {
  color: var(--color-success);
}

.site-footer {
  border-block-start: 1px solid var(--color-rule);
  background: var(--color-paper);
}

.site-footer > .shell {
  padding-block: var(--space-3xl) max(var(--space-xl), env(safe-area-inset-bottom));
}

.footer-mast {
  display: block;
  max-inline-size: 100%;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: clamp(3.75rem, 13vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.065em;
  line-height: 0.9;
  text-decoration: none;
}

.site-footer__meta {
  display: grid;
  gap: var(--space-xl);
  margin-block-start: var(--space-xl);
  padding-block-start: var(--space-lg);
  border-block-start: 1px solid var(--color-rule);
}

.site-footer__meta > p {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 500;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  align-items: center;
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

.site-footer__links a {
  display: inline-flex;
  align-items: center;
  min-inline-size: 44px;
  min-block-size: 44px;
}

/* Quiet utility pages use the same material and type, without borrowing the home layout. */
.page-hero {
  display: grid;
  gap: var(--space-lg);
  max-inline-size: 58rem;
  padding-block: var(--space-4xl) var(--space-3xl);
}

.page-hero h1,
.not-found h1 {
  max-inline-size: 12ch;
}

.page-hero > p:last-child,
.not-found > p {
  max-inline-size: 52ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.status-line,
.not-found__code {
  color: var(--color-neutral);
  font-size: var(--text-sm);
  font-weight: 600;
}

.prose {
  display: grid;
  gap: var(--space-2xl);
  max-inline-size: 48rem;
  padding-block-end: var(--space-4xl);
}

.prose section {
  display: grid;
  gap: var(--space-md);
  padding-block-start: var(--space-xl);
  border-block-start: 1px solid var(--color-rule);
}

.prose h2,
.support-grid h2 {
  max-inline-size: none;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

.prose p,
.prose li,
.support-grid p,
.support-grid li {
  max-inline-size: var(--measure);
  color: var(--color-ink-2);
}

.prose a {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
}

.support-grid {
  display: grid;
  gap: var(--space-3xs);
  padding-block-end: var(--space-3xl);
  background: var(--color-rule);
  border: 1px solid var(--color-rule);
}

.support-grid article {
  display: grid;
  align-content: start;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-paper-raised);
  color: var(--color-ink);
}

.support-grid ol {
  display: grid;
  gap: var(--space-sm);
  padding-inline-start: var(--space-lg);
}

.not-found {
  display: grid;
  align-content: center;
  justify-items: start;
  gap: var(--space-lg);
  min-block-size: 100svh;
  padding-block: var(--space-3xl);
}

@media (hover: hover) and (pointer: fine) {
  .nav-cta:hover,
  .button:hover {
    background: var(--color-accent-deep);
    color: var(--color-accent-ink);
    transform: translateY(-1px);
  }

  .intro-rail .button:hover,
  .mechanism-card--demo .button:hover {
    background: var(--color-accent-soft);
    color: var(--color-panel);
  }

  .outlined-chip:hover,
  .copy-button:hover {
    background: var(--color-ink);
    color: var(--color-paper);
    transform: translateY(-1px);
  }

  .outlined-chip--dark:hover {
    background: var(--color-panel-ink);
    color: var(--color-panel);
  }

  .site-nav__links a:hover,
  .site-footer__links a:hover,
  .site-nav__banner a:hover {
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 0.14em;
  }

  .banner-dismiss:hover {
    color: var(--color-accent-soft);
  }

  .field input:hover,
  .field select:hover,
  .field textarea:hover {
    background: var(--color-paper-2);
  }

  .faq-list summary:hover {
    color: var(--color-accent-deep);
  }
}

.site-nav__links a:active,
.site-footer__links a:active,
.site-nav__banner a:active,
.faq-list summary:active {
  color: var(--color-accent-deep);
}

.banner-dismiss:active {
  transform: translateY(1px);
}

@media (min-width: 40rem) {
  .banner-wide {
    display: inline;
  }

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

  .site-nav__links {
    display: flex;
  }

  .hero-marquee {
    min-block-size: clamp(32rem, 72svh, 47rem);
  }

  .intro-rail__inner,
  .problem,
  .privacy-band__inner,
  .faq,
  .beta-band__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .intro-rail__action {
    justify-self: end;
  }

  .mechanism-card--allowance {
    min-block-size: 25rem;
  }

  .mechanism-card--ladder {
    min-block-size: 28rem;
  }

  .mechanism-card--demo {
    min-block-size: 32rem;
  }

  .mechanism-card--return {
    min-block-size: 23rem;
  }

  .pause-demo {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "dial note"
      "dial button";
    align-items: end;
  }

  .pause-demo__dial {
    grid-area: dial;
  }

  .demo-note {
    grid-area: note;
    align-self: end;
  }

  .demo-button {
    grid-area: button;
    justify-self: start;
  }

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

  .privacy-facts li:nth-child(odd) {
    border-inline-end: 1px solid var(--color-panel-2);
    padding-inline-end: var(--space-md);
  }

  .privacy-facts li:nth-child(even) {
    padding-inline-start: var(--space-md);
  }

  .site-footer__meta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }

  .site-footer__links {
    justify-content: flex-end;
  }

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

@media (min-width: 60rem) {
  .mechanism {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(var(--space-2xl), 8vw, var(--space-4xl));
  }

  .mechanism__sticky {
    position: sticky;
    inset-block-start: calc(var(--bar-height) + var(--space-xl));
    align-self: start;
  }

  .mechanism-card {
    padding: var(--space-2xl);
  }
}

@media (min-width: 90rem) {
  .hero-marquee h1 {
    margin-inline-start: 4vw;
  }

  .problem {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--space-4xl);
  }
}

@media (pointer: coarse) {
  .nav-cta,
  .outlined-chip {
    min-block-size: 48px;
  }

  .button,
  .copy-button {
    min-block-size: 52px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.00001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.00001s !important;
  }
}

@keyframes hero-settle {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}