:root {
  --ink: #08192c;
  --ink-soft: #42546a;
  --blue: #0a5ce5;
  --blue-dark: #0648af;
  --ice: #eaf2fc;
  --paper: #f4f6f8;
  --line: #c9d2dc;
  --white: #ffffff;
  --error: #a12622;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 14px;
  left: 18px;
  padding: 10px 14px;
  transform: translateY(-170%);
  background: var(--ink);
  color: white;
  text-decoration: none;
}

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

:focus-visible {
  outline: 3px solid #5c9cfb;
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  text-decoration: none;
}

.brand-name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.055em;
}

.brand-name > span:first-child {
  color: var(--blue);
}

.tm {
  margin-left: 2px;
  color: inherit;
  font-size: 0.4em;
  vertical-align: super;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav a {
  color: #263b53;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav .nav-contact {
  color: var(--blue);
}

.desktop-nav .nav-contact {
  border-bottom: 2px solid var(--blue);
}

.mobile-nav {
  position: relative;
  display: none;
}

.mobile-nav summary {
  padding: 8px 12px;
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav nav {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  min-width: 225px;
  padding: 8px;
  border: 1px solid var(--line);
  background: white;
  box-shadow: 0 18px 42px rgba(8, 25, 44, 0.14);
}

.mobile-nav nav a {
  display: block;
  padding: 11px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.audience-line,
.section-label {
  margin-bottom: 20px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.hero-layout {
  display: grid;
  min-height: 610px;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 54px;
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 68px 0 72px;
}

.hero h1 {
  max-width: 650px;
  margin-bottom: 26px;
  font-size: clamp(52px, 5.1vw, 76px);
  font-weight: 800;
  line-height: 0.99;
  letter-spacing: -0.06em;
}

.hero h1 span {
  display: block;
  color: var(--blue);
}

.hero-lead {
  max-width: 590px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.67;
}

.hero-contact,
.cta-link {
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 3px solid var(--blue);
}

.hero-contact:hover,
.cta-link:hover {
  color: var(--blue);
}

.hero-vehicle {
  position: relative;
  min-height: 610px;
  margin: 0;
  background: var(--ink);
}

.hero-vehicle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.hero-vehicle figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 14px 18px;
  background: rgba(8, 25, 44, 0.92);
  color: white;
  font-size: 14px;
  font-weight: 700;
}

.definition {
  padding-block: 36px;
  border-bottom: 1px solid var(--line);
}

.definition-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
}

.definition-layout .section-label {
  margin: 5px 0 0;
}

.definition-layout > p:last-child {
  max-width: 830px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.definition-layout strong {
  color: var(--ink);
}

.purpose-section {
  padding-block: 110px;
  background: var(--paper);
}

.purpose-layout,
.statement-layout,
.development-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 100px;
}

.purpose-layout h2,
.system-intro h2,
.statement-layout h2,
.development-layout h2,
.cta-layout h2,
.contact-hero h1,
.contact-aside h2,
.success-panel h2 {
  letter-spacing: -0.055em;
}

.purpose-layout h2 {
  max-width: 520px;
  margin: 0;
  font-size: clamp(44px, 4.8vw, 62px);
  line-height: 1.02;
}

.purpose-copy {
  max-width: 660px;
}

.purpose-copy p {
  color: var(--ink-soft);
  font-size: 17px;
}

.purpose-copy p + p {
  margin-top: 22px;
}

.purpose-copy .purpose-statement {
  margin-bottom: 30px;
  color: var(--ink);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.plain-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 800;
  text-underline-offset: 5px;
}

.system-section {
  padding-block: 104px 112px;
  background: var(--ink);
  color: white;
}

.section-label-light {
  color: #86b8ff;
}

.system-intro {
  display: grid;
  grid-template-columns: 1fr 0.64fr;
  gap: 90px;
  align-items: end;
  margin-bottom: 64px;
}

.system-intro h2 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(42px, 4.8vw, 60px);
  line-height: 1.03;
}

.system-intro > p {
  margin: 0 0 4px;
  color: #b9c6d5;
  font-size: 17px;
}

.system-roles {
  border-top: 1px solid rgba(255, 255, 255, 0.28);
}

.system-row {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 60px;
  align-items: center;
  min-height: 102px;
  padding: 22px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.system-row a,
.system-row strong {
  font-size: clamp(22px, 2.5vw, 31px);
  font-weight: 800;
  letter-spacing: -0.045em;
}

.system-row a {
  text-decoration-color: #77aaff;
  text-decoration-thickness: 1px;
  text-underline-offset: 7px;
}

.system-row p {
  max-width: 580px;
  margin: 0;
  color: #b9c6d5;
  font-size: 16px;
}

.system-current {
  border-left: 5px solid #6fa6ff;
  background: #102842;
}

.system-current p {
  color: white;
}

.not-marketplace {
  padding-block: 105px;
  background: var(--white);
}

.statement-layout h2 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(43px, 4.8vw, 61px);
  font-weight: 800;
  line-height: 1.04;
}

.statement-layout > div:last-child {
  padding-top: 44px;
  border-top: 4px solid var(--blue);
}

.statement-layout > div:last-child p {
  max-width: 680px;
  margin: 0;
  color: #31465d;
  font-size: 20px;
  line-height: 1.68;
}

.development-section {
  padding-block: 105px;
  border-block: 1px solid var(--line);
  background: var(--ice);
}

.development-layout h2 {
  max-width: 610px;
  margin: 0;
  font-size: clamp(42px, 4.6vw, 58px);
  line-height: 1.05;
}

.development-copy {
  padding-top: 42px;
  border-top: 1px solid #9bb6d4;
}

.development-copy p {
  max-width: 680px;
  color: var(--ink-soft);
  font-size: 17px;
}

.development-copy p + p {
  margin-top: 22px;
}

.contact-cta {
  padding-block: 62px;
  border-top: 8px solid var(--blue);
  background: var(--white);
}

.cta-layout {
  display: grid;
  grid-template-columns: 0.42fr 1fr auto;
  gap: 48px;
  align-items: center;
}

.cta-layout .section-label {
  margin: 0;
}

.cta-layout h2 {
  max-width: 660px;
  margin: 0;
  font-size: clamp(36px, 4vw, 50px);
  line-height: 1.05;
}

.site-footer {
  padding: 56px 0 28px;
  background: #030b15;
  color: white;
}

.site-footer .brand-name > span:first-child {
  color: #72a8ff;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.17);
}

.footer-main > div > p {
  margin: 12px 0 0;
  color: #8fa2b6;
  font-size: 14px;
}

.footer-main nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 25px;
}

.footer-main nav a {
  color: #d6e1ec;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.footer-main nav a:hover,
.footer-bottom a:hover {
  color: #7fb4ff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding-top: 25px;
  color: #8295a9;
  font-size: 12px;
}

.footer-bottom a {
  color: #bcd0e4;
  text-underline-offset: 3px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}

.button-primary {
  background: var(--blue);
  color: white;
}

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

.contact-main {
  background: var(--paper);
}

.contact-hero {
  padding-block: 82px;
  background: var(--ink);
  color: white;
}

.contact-hero-layout {
  display: grid;
  grid-template-columns: 1fr 0.62fr;
  gap: 90px;
  align-items: end;
}

.contact-hero h1 {
  max-width: 770px;
  margin: 0;
  font-size: clamp(48px, 5.5vw, 68px);
  line-height: 1;
}

.contact-hero-layout > p:last-child {
  max-width: 560px;
  margin: 0 0 4px;
  color: #bacadd;
  font-size: 18px;
}

.contact-workspace {
  padding-block: 82px 110px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.56fr 1.44fr;
  gap: 76px;
  align-items: start;
}

.contact-aside {
  position: sticky;
  top: 108px;
}

.contact-aside h2 {
  margin-bottom: 22px;
  font-size: 38px;
  font-weight: 800;
  line-height: 1.06;
}

.contact-aside > p {
  color: var(--ink-soft);
  font-size: 16px;
}

.response-note {
  margin-top: 28px;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}

.contact-form,
.success-panel {
  padding: 46px;
  border: 1px solid var(--line);
  border-top: 5px solid var(--blue);
  background: white;
}

.contact-form fieldset {
  margin: 0 0 40px;
  padding: 0 0 40px;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.contact-form legend {
  width: 100%;
  margin-bottom: 25px;
  color: var(--ink);
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.form-grid {
  display: grid;
  gap: 23px;
}

.form-grid.two-column {
  grid-template-columns: repeat(2, 1fr);
}

.field {
  display: grid;
  gap: 8px;
}

.field-wide {
  margin-top: 23px;
}

.field label {
  color: #223950;
  font-size: 14px;
  font-weight: 800;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid #aebfd1;
  border-radius: 0;
  background: #fbfdff;
  color: var(--ink);
  font: 500 16px/1.45 "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.field input,
.field select {
  min-height: 52px;
  padding: 12px 14px;
}

.field textarea {
  min-height: 150px;
  padding: 14px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(10, 92, 229, 0.15);
  outline-offset: 0;
  background: white;
}

.consent-row {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 14px;
  cursor: pointer;
}

.consent-row input {
  width: 19px;
  height: 19px;
  accent-color: var(--blue);
}

.form-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 32px;
}

.form-submit-row p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.form-submit-row button {
  cursor: pointer;
  font-family: inherit;
}

.success-panel {
  display: flex;
  min-height: 500px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.success-panel h2 {
  max-width: 640px;
  margin-bottom: 20px;
  font-size: clamp(42px, 4.8vw, 60px);
  line-height: 1.02;
}

.success-panel > p:not(.section-label) {
  max-width: 600px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: 17px;
}

.error-summary {
  margin-bottom: 32px;
  padding: 22px;
  border: 1px solid #d58f8a;
  border-left: 5px solid var(--error);
  background: #fff5f4;
}

.error-summary h2 {
  margin-bottom: 10px;
  font-size: 20px;
}

.error-summary ul {
  margin: 0;
  padding-left: 22px;
}

.error-summary a {
  color: var(--error);
}

.field .invalid {
  border-color: var(--error);
  background: #fff8f7;
}

.field-error {
  color: var(--error);
  font-size: 13px;
  font-weight: 700;
}

.honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
  white-space: nowrap !important;
}

@media (max-width: 1000px) {
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .hero-layout,
  .purpose-layout,
  .statement-layout,
  .development-layout,
  .system-intro,
  .contact-hero-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    gap: 0;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-vehicle {
    min-height: 480px;
    margin-inline: -24px;
  }

  .definition-layout {
    grid-template-columns: 220px 1fr;
    gap: 40px;
  }

  .purpose-layout,
  .statement-layout,
  .development-layout,
  .system-intro,
  .contact-hero-layout,
  .contact-layout {
    gap: 44px;
  }

  .purpose-copy,
  .system-intro > p,
  .statement-layout > div:last-child,
  .development-copy,
  .contact-hero-layout > p:last-child {
    max-width: 760px;
  }

  .cta-layout {
    grid-template-columns: 0.35fr 1fr;
  }

  .cta-link {
    grid-column: 2;
    width: fit-content;
  }

  .contact-aside {
    position: static;
    max-width: 720px;
  }
}

@media (max-width: 700px) {
  .shell {
    width: min(calc(100% - 30px), var(--max));
  }

  .header-inner {
    min-height: 70px;
  }

  .brand-name {
    font-size: 19px;
  }

  .hero-copy {
    padding-block: 52px 58px;
  }

  .audience-line,
  .section-label {
    font-size: 12px;
  }

  .hero h1 {
    font-size: clamp(48px, 14.8vw, 66px);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-vehicle {
    min-height: 390px;
    margin-inline: -15px;
  }

  .hero-vehicle img {
    object-position: 58% center;
  }

  .definition-layout {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .definition-layout .section-label {
    margin: 0;
  }

  .definition-layout > p:last-child {
    font-size: 16px;
  }

  .purpose-section,
  .system-section,
  .not-marketplace,
  .development-section {
    padding-block: 76px;
  }

  .purpose-layout h2,
  .statement-layout h2,
  .development-layout h2,
  .system-intro h2 {
    font-size: 43px;
  }

  .purpose-copy .purpose-statement {
    font-size: 24px;
  }

  .system-row {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 22px 14px;
  }

  .statement-layout > div:last-child,
  .development-copy {
    padding-top: 28px;
  }

  .statement-layout > div:last-child p {
    font-size: 18px;
  }

  .cta-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cta-layout h2 {
    font-size: 40px;
  }

  .cta-link {
    grid-column: auto;
  }

  .footer-main,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-main nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 13px;
  }

  .contact-hero {
    padding-block: 66px;
  }

  .contact-hero h1 {
    font-size: 48px;
  }

  .contact-workspace {
    padding-block: 64px 84px;
  }

  .contact-aside h2 {
    font-size: 36px;
  }

  .contact-form,
  .success-panel {
    padding: 28px 20px;
  }

  .form-grid.two-column {
    grid-template-columns: 1fr;
  }

  .form-submit-row {
    align-items: stretch;
    flex-direction: column;
  }

  .form-submit-row p {
    order: 2;
    text-align: center;
  }

  .form-submit-row .button {
    width: 100%;
  }
}

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