:root {
  color-scheme: light;
  --blue: #2465df;
  --blue-dark: #174bac;
  --paper: #f4f7fa;
  --white: #ffffff;
  --ink: #17354d;
  --muted: #536b7e;
  --line: #dde7ef;
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 1.5rem;
}
body {
  margin: 0;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-underline-offset: 0.22em;
}
p {
  line-height: 1.65;
  margin: 0 0 1.25rem;
}
h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
}
h1,
h2 {
  letter-spacing: -0.045em;
  font-weight: 700;
}
h2 {
  font-size: clamp(2rem, 3.7vw, 3.1rem);
}
h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}
.shell {
  width: min(1160px, calc(100% - 80px));
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  top: 0.8rem;
  left: 1rem;
  padding: 1rem;
  z-index: 5;
  background: var(--white);
  transform: translateY(-180%);
}
.skip-link:focus {
  transform: translateY(0);
}
.site-header {
  background: var(--paper);
}
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding-block: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand img {
  width: 40px;
  border-radius: 11px;
}
.brand span,
.footer-brand {
  font-size: 2rem;
  font-weight: 750;
  letter-spacing: -0.065em;
}
nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
}
nav a {
  display: flex;
  align-items: center;
  min-height: 44px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}
nav a:hover,
.credit a:hover {
  color: var(--blue);
  text-decoration: underline;
}
.hero {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-block: 72px 104px;
}
.availability {
  color: var(--blue-dark);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 25px;
}
h1 {
  font-size: clamp(3rem, 5.8vw, 4.8rem);
}
.intro {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 31rem;
  margin-block: 26px 32px;
}
.primary-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 56px;
  padding: 15px 25px;
  border-radius: 13px;
  color: var(--white);
  background: var(--blue);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
}
.primary-link:hover {
  background: var(--blue-dark);
}
.hero-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 20px;
  margin-bottom: 0;
}
.hero-mark {
  padding: 12px;
}
.hero-mark img {
  width: 100%;
  border-radius: 24%;
}
.project-section {
  background: var(--white);
  padding-block: 88px;
}
.project-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
}
.project-copy {
  font-size: 1.05rem;
  color: var(--muted);
}
.project-copy p:last-child {
  margin-bottom: 0;
}
.project-intent {
  color: var(--ink);
}
.vehicles-section {
  padding-block: 74px 54px;
  background: var(--blue);
  color: var(--white);
}
.vehicles-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 3rem;
}
.vehicles-heading h2 {
  max-width: 24rem;
}
.vehicles-heading > p {
  max-width: 27rem;
  font-size: 1rem;
  margin: 0;
}
.vehicle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 42px;
  list-style: none;
  padding: 0;
  margin: 55px 0 34px;
}
.vehicle-list li {
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  padding-top: 26px;
}
.vehicle-list h3 {
  font-weight: 500;
}
.vehicle-speed {
  font-size: 4rem;
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: -0.045em;
  margin-block: 20px;
}
.vehicle-speed span {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0;
}
.vehicle-list li > p:last-child {
  max-width: 18rem;
  margin-bottom: 0;
}
.vehicles-note {
  font-size: 0.9rem;
  margin-bottom: 0;
}
.preview-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  padding-block: 100px;
}
.preview-copy h2 {
  margin-bottom: 30px;
}
.preview-copy > p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 30rem;
}
.prototype-note {
  padding-left: 24px;
  border-left: 3px solid var(--blue);
  margin-top: 36px;
  max-width: 30rem;
}
.prototype-note h3 {
  margin-bottom: 12px;
}
.prototype-note p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}
.prototype-figure {
  margin: 0;
  justify-self: center;
  width: min(100%, 300px);
}
.phone-frame {
  border: 7px solid var(--ink);
  border-radius: 37px;
  overflow: hidden;
  background: var(--paper);
}
.phone-frame img {
  width: 100%;
}
figcaption {
  text-align: center;
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1.6;
  margin-top: 20px;
}
.capture-date {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
}
.faq-section {
  padding-block: 88px 96px;
  background: var(--white);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 6rem;
}
.faq-layout > div > p {
  color: var(--muted);
  margin-top: 25px;
  max-width: 20rem;
}
details {
  border-bottom: 1px solid var(--line);
}
details:first-child {
  border-top: 1px solid var(--line);
}
summary {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  padding: 22px 0;
  cursor: pointer;
}
summary::marker {
  color: var(--blue);
}
details > p {
  font-size: 0.98rem;
  color: var(--muted);
  margin-bottom: 24px;
}
.site-footer {
  padding-block: 32px;
}
.footer-content {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.footer-brand {
  color: var(--blue);
  text-decoration: none;
}
.footer-content p {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}
.footer-content .credit {
  margin-left: auto;
}
.legal-content {
  max-width: 780px;
  padding-block: 64px;
}
.legal-content h1 {
  font-size: clamp(2.4rem, 7vw, 4rem);
}
.legal-content section {
  margin-top: 40px;
}
.legal-content h2 {
  margin-bottom: 20px;
  font-size: 1.7rem;
}
.legal-content a {
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .shell {
    width: calc(100% - 48px);
  }
  .hero {
    gap: 2rem;
    padding-block: 54px 76px;
  }
  .hero-mark {
    padding: 0;
  }
  .project-layout,
  .preview-section,
  .faq-layout {
    gap: 3rem;
  }
  .vehicle-list {
    gap: 26px;
  }
  .vehicles-heading {
    gap: 2rem;
  }
  .footer-content {
    column-gap: 20px;
    row-gap: 14px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: calc(100% - 40px);
  }
  .header-content {
    flex-wrap: wrap;
    gap: 8px 20px;
    padding-block: 18px 12px;
  }
  .brand span {
    font-size: 1.8rem;
  }
  .brand img {
    width: 34px;
    border-radius: 9px;
  }
  nav {
    gap: 20px;
  }
  nav a {
    font-size: 0.85rem;
  }
  .hero {
    display: flex;
    flex-direction: column;
    align-items: start;
    gap: 36px;
    padding-block: 40px 58px;
  }
  h1 {
    font-size: clamp(2.6rem, 10.8vw, 4rem);
  }
  .availability {
    font-size: 0.82rem;
    margin-bottom: 20px;
  }
  .intro {
    font-size: 1.05rem;
    margin-block: 22px 25px;
  }
  .hero-note {
    max-width: 19rem;
  }
  .hero-mark {
    width: 158px;
    align-self: end;
    margin-right: 8px;
  }
  .project-section,
  .faq-section {
    padding-block: 58px;
  }
  .project-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .project-copy {
    font-size: 1rem;
  }
  .vehicles-section {
    padding-block: 55px 40px;
  }
  .vehicles-heading {
    display: block;
  }
  .vehicles-heading h2 {
    margin-bottom: 24px;
  }
  .vehicle-list {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-block: 35px 30px;
  }
  .vehicle-list li {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0 20px;
    padding-top: 20px;
  }
  .vehicle-list h3 {
    align-self: center;
  }
  .vehicle-speed {
    font-size: 2.5rem;
    margin: 0;
  }
  .vehicle-speed span {
    font-size: 1rem;
  }
  .vehicle-list li > p:last-child {
    grid-column: 1 / -1;
    max-width: 25rem;
    margin-top: 15px;
    font-size: 0.95rem;
  }
  .preview-section {
    grid-template-columns: 1fr;
    padding-block: 60px;
    gap: 40px;
  }
  .preview-copy > p {
    font-size: 1rem;
  }
  .prototype-figure {
    width: min(100%, 288px);
  }
  .faq-layout > div > p {
    max-width: none;
    margin-block: 20px 0;
  }
  .footer-content {
    align-items: start;
    gap: 12px;
  }
  .footer-content > p,
  .footer-content .credit {
    width: 100%;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}