:root {
  color-scheme: dark;
  --ink: #111412;
  --ink-soft: #181c19;
  --paper: #f2f0e9;
  --paper-muted: #acaea5;
  --paper-faint: #777d73;
  --signal: #d8f36a;
  --line: rgba(242, 240, 233, 0.16);
  --line-strong: rgba(242, 240, 233, 0.3);
  --max-width: 1180px;
  --narrow-width: 820px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 75% 5%, rgba(216, 243, 106, 0.08), transparent 28rem),
    var(--ink);
  color: var(--paper);
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 5px;
}

.site-shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.site-shell-narrow {
  width: min(calc(100% - 48px), var(--narrow-width));
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  color: var(--paper);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
  text-decoration: none;
}

.wordmark span {
  color: var(--signal);
}

.wordmark-small {
  font-size: 0.95rem;
}

.site-nav,
.footer-nav,
.hero-actions,
.error-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a,
.footer-nav a,
.text-link {
  color: var(--paper-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 180ms ease;
}

.site-nav a:hover,
.footer-nav a:hover,
.text-link:hover {
  color: var(--signal);
}

.hero {
  min-height: 650px;
  align-items: center;
  padding: 96px 0 112px;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(40px, 8vw, 140px);
}

.hero-copy {
  max-width: 690px;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--signal);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.98;
}

h1 {
  max-width: 760px;
  margin-bottom: 32px;
  font-size: clamp(4.2rem, 11vw, 9.4rem);
}

h2 {
  margin-bottom: 28px;
  font-size: clamp(3rem, 7vw, 6.8rem);
}

h3 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1;
}

.hero-lede,
.signal-intro p,
.ratio-callout p,
.legal-document > p,
.support-document > p,
.error-content > p {
  color: var(--paper-muted);
  font-size: clamp(1rem, 1.6vw, 1.22rem);
  line-height: 1.6;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

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

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

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

.button-light:hover {
  background: var(--signal);
}

.hero-clock {
  display: flex;
  justify-content: flex-end;
}

.clock-face {
  display: flex;
  width: min(100%, 330px);
  aspect-ratio: 1;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(216, 243, 106, 0.12), rgba(255, 255, 255, 0));
}

.clock-label,
.clock-caption,
.card-topline,
.card-footer {
  color: var(--paper-faint);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.clock-face strong {
  margin: auto 0 14px;
  color: var(--signal);
  font-size: clamp(3.5rem, 8vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.1em;
  line-height: 0.9;
}

.clock-rule {
  display: block;
  width: 100%;
  height: 1px;
  margin-bottom: 12px;
  background: var(--line-strong);
}

.clock-caption {
  max-width: 130px;
  line-height: 1.45;
}

.signal-section {
  align-items: end;
  padding: 100px 0 56px;
  border-top: 1px solid var(--line);
}

.signal-section h2 {
  margin-bottom: 0;
}

.signal-intro {
  max-width: 390px;
  padding-bottom: 8px;
}

.signal-intro p {
  margin-bottom: 24px;
}

.signal-intro p:last-child {
  margin-bottom: 0;
  color: var(--paper);
}

.lane-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding-bottom: 140px;
}

.lane-card {
  min-height: 360px;
  padding: 28px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.lane-card-signal {
  background: var(--signal);
  color: var(--ink);
}

.lane-card-noise {
  background: var(--ink-soft);
}

.lane-card-signal .card-topline,
.lane-card-signal .card-footer {
  color: rgba(17, 20, 18, 0.58);
}

.card-topline,
.card-footer {
  display: flex;
  justify-content: space-between;
}

.lane-card p {
  max-width: 340px;
  margin-bottom: 42px;
  color: inherit;
  opacity: 0.72;
}

.status-dot {
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: currentColor;
}

.card-footer {
  justify-content: flex-start;
}

.ratio-callout {
  align-items: center;
  padding: 100px 0 140px;
  border-top: 1px solid var(--line);
}

.ratio-mark {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--signal);
  font-size: clamp(5rem, 14vw, 12rem);
  font-weight: 500;
  letter-spacing: -0.13em;
  line-height: 0.7;
}

.ratio-slash {
  color: var(--paper-faint);
  font-size: 0.65em;
  font-weight: 300;
}

.ratio-muted {
  color: var(--paper-faint);
}

.ratio-callout p {
  max-width: 470px;
  margin-bottom: 0;
}

.closing-panel {
  min-height: 500px;
  padding: clamp(42px, 7vw, 92px);
  background: var(--signal);
  color: var(--ink);
}

.closing-panel .eyebrow {
  color: rgba(17, 20, 18, 0.58);
}

.closing-panel h2 {
  max-width: 700px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 120px;
  border-top: 1px solid var(--line);
}

.footer-note {
  color: var(--paper-faint);
  font-size: 0.76rem;
}

.legal-document,
.support-document {
  padding: 100px 0 120px;
}

.legal-document h1,
.support-document h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: clamp(3.4rem, 9vw, 7rem);
}

.document-intro {
  color: var(--paper-faint) !important;
  font-size: 0.82rem !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.legal-document > p:first-of-type,
.support-document > p:first-of-type {
  max-width: 650px;
  margin: 56px 0 80px;
}

.legal-document h2,
.support-document h2 {
  max-width: 580px;
  margin: 72px 0 16px;
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.legal-document p,
.support-document p {
  max-width: 650px;
  color: var(--paper-muted);
}

.legal-document a,
.support-document a {
  color: var(--signal);
  text-underline-offset: 4px;
}

.choice-list {
  margin: 76px 0;
  border-top: 1px solid var(--line);
}

.choice-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.choice-item h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.choice-item p {
  margin: 0;
}

.choice-index {
  color: var(--signal);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.support-email {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 88px;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.05em;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.support-card {
  min-height: 235px;
  padding: 28px;
  border: 1px solid var(--line);
}

.support-card h2 {
  margin: 48px 0 12px;
}

.support-card p {
  margin-bottom: 0;
}

.support-note {
  margin-top: 80px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.support-note .eyebrow {
  margin-bottom: 12px;
}

.support-note p:last-child {
  margin-bottom: 0;
}

.error-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.error-content {
  max-width: 650px;
  margin: auto 0;
  padding: 80px 0;
}

.error-content h1 {
  font-size: clamp(3.8rem, 10vw, 8rem);
}

.error-content > p {
  max-width: 440px;
  margin-bottom: 40px;
}

.error-nav {
  flex-wrap: wrap;
  justify-content: flex-start;
}

@media (max-width: 760px) {
  .site-shell,
  .site-shell-narrow {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-header {
    min-height: 72px;
  }

  .site-nav,
  .footer-nav {
    gap: 14px;
  }

  .hero,
  .signal-section,
  .ratio-callout {
    display: block;
    padding: 72px 0 80px;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: clamp(3.8rem, 18vw, 6rem);
  }

  h2 {
    font-size: clamp(2.8rem, 14vw, 4.6rem);
  }

  .hero-clock {
    justify-content: flex-start;
    margin-top: 72px;
  }

  .clock-face {
    width: min(100%, 280px);
  }

  .signal-intro {
    margin-top: 40px;
  }

  .lane-grid,
  .support-grid {
    grid-template-columns: 1fr;
    padding-bottom: 80px;
  }

  .ratio-callout .ratio-mark {
    margin-bottom: 72px;
  }

  .closing-panel {
    min-height: 420px;
    padding: 40px 24px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 28px 0;
  }

  .footer-nav {
    flex-wrap: wrap;
  }

  .legal-document,
  .support-document {
    padding: 72px 0 88px;
  }

  .legal-document > p:first-of-type,
  .support-document > p:first-of-type {
    margin: 44px 0 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}