:root {
  color-scheme: light;
  --ink: #1f252b;
  --muted: #66727f;
  --line: #dfe6ec;
  --soft: #f4f8fb;
  --blue: #0879b5;
  --blue-dark: #075b88;
  --blue-soft: #dff1fb;
  --green: #287f65;
  --paper: #ffffff;
  --shadow: 0 18px 50px rgba(31, 37, 43, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid #f2b647;
  outline-offset: 4px;
}

.skip-link {
  background: var(--ink);
  color: #fff;
  left: 16px;
  padding: 10px 14px;
  position: fixed;
  top: -80px;
  z-index: 100;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 24px;
  grid-template-columns: auto 1fr auto;
  min-height: 72px;
  padding: 0 6vw;
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand,
.footer-brand {
  align-items: center;
  display: inline-flex;
  gap: 11px;
}

.brand {
  font-size: 18px;
  font-weight: 780;
  text-decoration: none;
}

.brand-icon {
  border-radius: 10px;
  height: 36px;
  width: 36px;
}

.site-header nav,
.site-footer nav {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 680;
  gap: 22px;
}

.site-header nav {
  justify-content: flex-end;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--ink);
}

.header-cta {
  background: var(--blue);
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-weight: 760;
  padding: 10px 14px;
  text-decoration: none;
}

main {
  overflow: hidden;
}

.hero {
  align-items: start;
  display: grid;
  gap: 54px;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.72fr);
  min-height: 760px;
  padding: 58px 6vw 64px;
}

.hero-copy {
  max-width: 820px;
}

.hero-icon {
  border-radius: 24px;
  box-shadow: var(--shadow);
  display: block;
  height: 96px;
  margin-bottom: 26px;
  width: 96px;
}

.eyebrow,
.feature-kicker {
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 12px;
}

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

h1 {
  font-size: clamp(62px, 8vw, 108px);
  letter-spacing: 0;
  line-height: 0.92;
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(34px, 4.4vw, 60px);
  letter-spacing: 0;
  line-height: 1.02;
  margin-bottom: 22px;
  max-width: 980px;
}

h3 {
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 10px;
}

.hero-promise {
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 740;
  line-height: 1.08;
  margin-bottom: 22px;
  max-width: 780px;
}

.lead,
.section-lead {
  color: var(--muted);
  line-height: 1.52;
}

.lead {
  font-size: clamp(18px, 1.8vw, 23px);
  max-width: 760px;
}

.section-lead {
  font-size: 18px;
  max-width: 800px;
}

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

.hero-actions {
  margin-top: 30px;
}

.button {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 760;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  text-decoration: none;
}

.primary {
  background: var(--blue);
  color: #fff;
}

.primary:hover,
.header-cta:hover {
  background: var(--blue-dark);
}

.secondary {
  border: 1px solid #c8d3db;
  color: var(--ink);
}

.beta-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  margin: 14px 0 0;
}

.phone-preview {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.phone-top {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 6px;
  padding-bottom: 18px;
}

.phone-top span {
  font-size: 17px;
  font-style: italic;
}

.phone-top strong {
  font-size: 34px;
  line-height: 1;
}

.memory-preview {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding: 20px 0;
}

.memory-preview p {
  font-size: 18px;
  line-height: 1.42;
  margin-bottom: 14px;
}

.route-thumb,
.memory-photo {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.route-thumb {
  aspect-ratio: 2.46 / 1;
  margin-bottom: 12px;
}

.memory-photo {
  aspect-ratio: 2.2 / 1;
}

.preview-meta {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  font-weight: 700;
  gap: 8px;
}

.preview-meta span {
  background: var(--soft);
  border-radius: 999px;
  padding: 6px 10px;
}

.image-note {
  color: var(--muted);
  display: block;
  font-size: 12px;
  font-weight: 650;
  margin-top: 8px;
}

.preview-actions {
  color: var(--blue-dark);
  display: flex;
  font-size: 13px;
  font-weight: 780;
  justify-content: space-between;
  padding-top: 15px;
}

.section {
  border-top: 1px solid var(--line);
  padding: 82px 6vw;
}

.section-heading {
  margin-bottom: 34px;
  max-width: 980px;
}

.section-heading.compact {
  margin-bottom: 30px;
}

.feature-section,
.purpose-section,
.history-section,
.faq-section {
  background: #fff;
}

.purpose-section {
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
}

.purpose-intro {
  max-width: 820px;
}

.purpose-lead {
  color: var(--muted);
  font-size: 20px;
  line-height: 1.58;
  max-width: 790px;
}

.purpose-principles {
  border-top: 1px solid var(--line);
}

.purpose-principles article {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

.purpose-principles span {
  display: block;
  font-size: 18px;
  font-weight: 780;
  margin-bottom: 6px;
}

.purpose-principles p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: 0;
}

.feature-grid,
.privacy-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.privacy-grid article,
.history-levels article {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.feature-kicker {
  display: block;
  margin-bottom: 16px;
}

.feature-card p,
.privacy-grid p,
.history-levels p,
.process-list p,
.route-caption span,
.beta-section p,
.faq-list p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
  margin-bottom: 0;
}

.process-section,
.evidence-section,
.beta-section {
  background: var(--soft);
}

.process-list {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  max-width: 980px;
  padding: 0;
}

.process-list li {
  align-items: start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 18px;
  grid-template-columns: 42px 1fr;
  padding: 20px;
}

.process-list li > span {
  align-items: center;
  background: var(--blue);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-weight: 850;
  height: 36px;
  justify-content: center;
  width: 36px;
}

.evidence-section,
.beta-section {
  align-items: start;
  display: grid;
  gap: 44px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
}

.signal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}

.signal-list span {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 690;
  padding: 9px 12px;
}

.route-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px;
}

.route-card img {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  width: 100%;
}

.route-caption {
  display: grid;
  gap: 5px;
  padding: 14px 2px 2px;
}

.route-caption strong {
  font-size: 17px;
}

.history-levels {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.history-levels span {
  color: var(--blue-dark);
  display: block;
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.07em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.privacy-section {
  background: #fff;
}

.privacy-intro {
  max-width: 940px;
}

.privacy-grid {
  margin-top: 34px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.privacy-grid article {
  background: #fff;
}

.legal-note {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  margin: 30px 0 0;
  padding-top: 22px;
}

.legal-note a {
  color: var(--blue-dark);
  font-weight: 700;
}

.beta-section {
  align-items: center;
  grid-template-columns: minmax(0, 1fr) auto;
}

.beta-section h2 {
  margin-bottom: 14px;
}

.beta-section p {
  max-width: 780px;
}

.beta-actions {
  justify-content: flex-end;
}

.faq-list {
  display: grid;
  gap: 10px;
  max-width: 960px;
}

details {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 780;
  list-style: none;
  padding: 20px 22px;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  color: var(--blue-dark);
  content: "+";
  float: right;
  font-size: 24px;
  line-height: 1;
}

details[open] summary::after {
  content: "-";
}

.faq-list p {
  padding: 0 22px 22px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  min-height: 92px;
  padding: 18px 6vw;
}

.footer-brand img {
  border-radius: 8px;
}

.footer-brand div {
  display: grid;
  gap: 2px;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 15px;
}

.footer-brand span {
  font-size: 13px;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .site-header nav {
    display: none;
  }

  .header-cta {
    justify-self: end;
  }

  .hero,
  .purpose-section,
  .evidence-section,
  .beta-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .phone-preview {
    max-width: 560px;
  }

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

  .beta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 64px;
    padding: 0 20px;
  }

  .brand {
    font-size: 17px;
  }

  .brand-icon {
    height: 34px;
    width: 34px;
  }

  .header-cta {
    padding: 9px 12px;
  }

  .hero,
  .section {
    padding-left: 22px;
    padding-right: 22px;
  }

  .hero {
    gap: 36px;
    padding-bottom: 50px;
    padding-top: 42px;
  }

  .hero-icon {
    height: 88px;
    width: 88px;
  }

  h1 {
    font-size: 64px;
  }

  h2 {
    font-size: 36px;
  }

  .hero-promise {
    font-size: 30px;
  }

  .lead {
    font-size: 18px;
  }

  .hero-actions .button,
  .beta-actions .button {
    flex: 1 1 auto;
  }

  .phone-preview {
    border-radius: 18px;
    padding: 18px;
  }

  .section {
    padding-bottom: 64px;
    padding-top: 64px;
  }

  .feature-grid,
  .privacy-grid,
  .history-levels {
    grid-template-columns: 1fr;
  }

  .process-list li {
    grid-template-columns: 38px 1fr;
    gap: 14px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    padding: 24px 22px;
  }

  .site-footer nav {
    gap: 18px;
  }
}

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