:root {
  --ink: #102c35;
  --deep: #0b232b;
  --cream: #f7f8f4;
  --cyan: #b7f1de;
  --teal: #126b65;
  --muted: #b7cbd0;
  --line-dark: rgba(16,44,53,.14);
  --line-light: rgba(242,249,246,.18);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; color: var(--ink); background: var(--cream); font: 16px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex="0"]:focus-visible { outline: 3px solid #c25727; outline-offset: 5px; }
img { display: block; max-width: 100%; }
svg { display: block; }
figure, h1, h2, h3, p { margin: 0; }
button { font: inherit; }
[hidden] { display: none !important; }
em { font-weight: inherit; }
.shell { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 12px 20px; background: var(--cyan); color: var(--ink); transform: translateY(-180%); border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }
.eyebrow { font: 11px/1.6 var(--mono); letter-spacing: .1em; font-weight: 600; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(247,248,244,.96); border-bottom: 1px solid var(--line-dark); backdrop-filter: blur(16px); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; position: relative; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; font-size: 23px; line-height: 1.05; letter-spacing: .055em; font-weight: 750; }
.wordmark-sub { display: block; margin-top: 6px; font: 9px/1.3 var(--mono); letter-spacing: .13em; }
.brand-mark { width: 38px; height: 38px; color: var(--teal); }
.site-header nav { display: flex; align-items: center; gap: 8px; }
.site-header nav a { padding: 10px 15px; font-size: 13px; border-radius: 8px; transition: background-color .2s, color .2s; }
.site-header nav a:hover, .site-header nav a[aria-current="location"] { color: var(--teal); background: #e8f0ea; }
.site-header nav .nav-download { margin-left: 10px; border: 1px solid var(--line-dark); }
.nav-download span { padding-left: 14px; }
.menu-toggle { display: none; }
.hero { padding-top: 76px; background: radial-gradient(ellipse at 85% 20%, #e6f1e9, transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.07fr 1fr; gap: 64px; align-items: center; }
.hero-copy .eyebrow { display: flex; align-items: center; gap: 9px; color: var(--teal); margin-bottom: 26px; font-size: 10px; letter-spacing: .04em; }
.status-dot { width: 7px; height: 7px; flex-shrink: 0; background: var(--teal); border-radius: 50%; box-shadow: 0 0 0 5px #e2ede5; margin-inline: 5px; }
h1 { font-size: clamp(48px, 5.05vw, 72px); line-height: 1.08; font-weight: 580; letter-spacing: -.055em; text-wrap: balance; }
h1 em { font-family: var(--serif); color: var(--teal); }
.hero-intro { max-width: 470px; margin-top: 26px; color: #486168; font-size: 17px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; justify-content: space-between; align-items: center; gap: 22px; padding: 13px 18px; border: 1px solid transparent; border-radius: 9px; font-size: 13px; font-weight: 600; transition: background-color .2s, transform .2s, box-shadow .2s; }
.button span { font-size: 19px; font-weight: 400; }
.button-cyan { background: var(--ink); color: #fff; }
.button-cyan:hover { background: var(--teal); box-shadow: 0 6px 20px #102c3515; }
.button-outline { border-color: var(--line-dark); }
.button-outline:hover { background: #fff; }
.hero-note { margin-top: 20px; font-size: 12px; color: #587075; }
.hero-model { color: var(--ink); background: #fff; border: 1px solid var(--line-dark); border-radius: 18px; overflow: hidden; box-shadow: 0 22px 60px -35px #123b4855; }
.model-topline { display: flex; justify-content: space-between; gap: 16px; padding: 17px 22px; border-bottom: 1px solid var(--line-dark); font: 10px/1.5 var(--mono); letter-spacing: .035em; }
.model-topline span:last-child { color: var(--teal); }
.cad-window { position: relative; overflow: hidden; background: #f4f9fc; }
.vehicle-window { aspect-ratio: 1.43; }
.vehicle-window img { width: 100%; height: 100%; object-fit: contain; }
.image-cross { display: none; }
.hero-model figcaption { padding: 18px 22px; border-top: 1px solid var(--line-dark); font-size: 11px; line-height: 1.7; color: #587075; }
.hero-model figcaption span { display: block; }
.model-caption-title { color: var(--ink); font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.model-specs { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); background: #fafbf8; }
.model-specs div { display: flex; flex-direction: column; gap: 3px; padding: 14px 22px; }
.model-specs div + div { border-left: 1px solid var(--line-dark); }
.model-specs span { font: 9px/1.5 var(--mono); color: #587075; }
.model-specs strong { font-size: 22px; font-weight: 550; }
.hero-foot { display: flex; justify-content: space-between; gap: 20px; margin-top: 72px; padding: 22px 0; border-top: 1px solid var(--line-dark); font: 10px/1.5 var(--mono); letter-spacing: .06em; color: #587075; }
.section-cream { background: var(--cream); color: var(--ink); }
.project { padding: 104px 0; background: #fff; }
.section-heading .eyebrow { margin-bottom: 20px; color: var(--teal); }
h2 { font-size: clamp(34px, 3.5vw, 50px); line-height: 1.15; letter-spacing: -.04em; font-weight: 550; text-wrap: balance; }
.project-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; margin: 36px 0 56px; }
.large-copy { font-size: 22px; line-height: 1.6; letter-spacing: -.02em; }
.body-copy { font-size: 15px; line-height: 1.85; color: #486168; }
.body-copy p + p { margin-top: 16px; }
.design-detail { display: grid; grid-template-columns: 1.15fr 1fr; gap: 64px; align-items: center; padding-top: 50px; border-top: 1px solid var(--line-dark); }
.detail-window { position: relative; aspect-ratio: 920 / 430; background: #fff; overflow: hidden; border: 1px solid var(--line-dark); border-radius: 14px; }
.detail-window img { position: absolute; width: 139.1305%; height: auto; max-width: none; left: -28.2609%; top: -58.14%; }
.detail-figure figcaption { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 18px; padding-top: 14px; font: 9px/1.5 var(--mono); letter-spacing: .02em; color: #587075; }
.detail-copy .eyebrow { color: var(--teal); margin-bottom: 14px; }
h3 { font-size: 30px; line-height: 1.2; font-weight: 550; letter-spacing: -.03em; }
.detail-copy > p:not(.eyebrow) { font-size: 15px; margin-top: 20px; color: #486168; }
.text-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid currentColor; padding-bottom: 5px; font-size: 13px; font-weight: 600; }
.text-link:hover { color: var(--teal); }
.text-link span { font-size: 18px; transition: transform .2s; }
.detail-copy > .text-link { margin-top: 22px; }
.development-note { margin-top: 28px; padding: 18px; display: flex; gap: 12px; background: #f2f6f1; border-radius: 10px; }
.note-marker { font-size: 24px; line-height: 1; color: var(--teal); }
.development-note p { font-size: 12px; line-height: 1.8; color: #486168; }
.development-note strong { display: block; color: var(--ink); margin-bottom: 4px; }
.journal-section { padding: 96px 0; background: var(--deep); color: var(--cream); }
.heading-inline { display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.heading-inline > p { font-size: 14px; line-height: 1.8; max-width: 360px; color: #486168; }
.journal-section .heading-inline > p { color: var(--muted); }
.journal-section .eyebrow { color: var(--cyan); }
.journal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px; }
.journal-entry { display: flex; flex-direction: column; padding: 20px 24px 24px; border: 1px solid var(--line-light); border-radius: 16px; background: #123039; transition: transform .25s, border-color .25s, background-color .25s; overflow: hidden; }
.entry-image { overflow: hidden; border-radius: 9px; aspect-ratio: 16 / 8; margin-bottom: 22px; background: #fff; }
.entry-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.2,.7,.2,1); }
.entry-top, .entry-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; font: 10px/1.5 var(--mono); letter-spacing: .06em; }
.entry-top { color: var(--cyan); }
.entry-top span:last-child { font-size: 23px; transition: transform .2s; }
.journal-entry h3 { font-size: clamp(27px, 2.7vw, 36px); margin-top: 14px; }
.journal-entry > p { color: var(--muted); font-size: 14px; line-height: 1.8; max-width: 430px; margin: 16px 0 28px; }
.entry-bottom { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line-light); }
.entry-bottom span:last-child { font: italic 25px/1 var(--serif); color: var(--muted); }
.image-credit { text-align: right; margin-top: 16px; font-size: 10px; color: var(--muted); }
.image-credit a { text-decoration: underline; text-underline-offset: 3px; }
.mission-section { background: #e7f1e9; padding: 100px 0; }
.mission-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.mission-title .eyebrow { margin-bottom: 30px; color: var(--teal); }
.mission-title h2 { line-height: 1.2; }
.mission-title em { font-family: var(--serif); color: var(--teal); }
.mission-copy .large-copy { margin-bottom: 28px; }
.mission-item { display: flex; gap: 20px; padding: 23px 0; border-top: 1px solid var(--line-dark); }
.mission-item > span { font: 11px/1.5 var(--mono); padding-top: 4px; color: var(--teal); }
.mission-item h3 { font-size: 21px; }
.mission-item p { font-size: 14px; margin-top: 10px; line-height: 1.8; color: #486168; }
.mission-copy > .text-link { margin-top: 12px; }
.downloads-section { padding: 96px 0 80px; }
.download-list { margin-top: 40px; display: grid; gap: 12px; }
.download-row { display: grid; grid-template-columns: 70px 1fr auto; gap: 26px; align-items: center; border: 1px solid var(--line-dark); border-radius: 12px; padding: 24px; background: #fff; transition: border-color .2s, transform .2s; }
.file-type { font: 10px/1.5 var(--mono); text-align: center; padding: 12px 4px; border-radius: 7px; color: var(--teal); background: #edf4ef; }
.file-copy strong { display: block; font-size: 20px; font-weight: 550; letter-spacing: -.02em; }
.file-copy > span { display: block; margin-top: 4px; font-size: 13px; color: #486168; }
.download-action { display: flex; align-items: center; gap: 24px; font: 10px/1.5 var(--mono); }
.download-action span { font-size: 23px; }
.archive-note { margin-top: 20px; color: #587075; font-size: 12px; }
.site-footer { padding-top: 48px; background: var(--ink); color: var(--cream); }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-bottom: 36px; }
.footer-top p { font-size: 28px; line-height: 1.1; letter-spacing: .03em; font-weight: 650; }
.footer-top p span { font: 10px/1.4 var(--mono); letter-spacing: .12em; }
.footer-top .text-link { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px 30px; border-top: 1px solid var(--line-light); padding-block: 22px; color: var(--muted); font: 9px/1.6 var(--mono); }
.footer-bottom a { color: var(--cream); }
.footer-bottom a:hover { color: var(--cyan); }
.reading-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 50; pointer-events: none; }
.reading-progress span { display: block; height: 100%; background: var(--teal); transform: scaleX(0); transform-origin: left; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .button:hover { transform: translateY(-2px); }
  .journal-entry:hover { transform: translateY(-5px); border-color: #5e9a92; background: #173b43; }
  .journal-entry:hover .entry-image img { transform: scale(1.035); }
  .journal-entry:hover .entry-top span:last-child, .text-link:hover span { transform: translateX(4px); }
  .download-row:hover { transform: translateX(4px); border-color: #6c9f91; }
}
@media (max-width: 1100px) {
  .shell { width: calc(100% - 64px); }
  .hero-grid { gap: 32px; }
  .hero { padding-top: 54px; }
  h1 { font-size: clamp(43px, 5.5vw, 64px); }
  .hero-intro { font-size: 16px; }
  .project-intro, .design-detail, .mission-grid { gap: 40px; }
  .site-header nav a { padding-inline: 10px; }
  .model-specs div { padding-inline: 16px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 90px; }
  .shell { width: calc(100% - 40px); }
  .header-inner { min-height: 72px; flex-wrap: wrap; gap: 0; padding-block: 14px; }
  .wordmark { font-size: 21px; }
  .brand-mark { width: 34px; height: 34px; }
  .site-header nav { width: 100%; flex-wrap: wrap; gap: 4px; margin-top: 14px; }
  .site-header nav a { flex: 1; text-align: center; font-size: 12px; }
  .site-header nav .nav-download { margin-left: 0; }
  .has-menu .menu-toggle { display: flex; align-items: center; gap: 16px; margin-left: auto; padding: 8px 12px; border: 1px solid var(--line-dark); border-radius: 8px; background: transparent; color: var(--ink); font-size: 13px; cursor: pointer; }
  .menu-toggle span { font-size: 20px; line-height: 1.2; transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
  .has-menu nav { display: none; }
  .has-menu nav.is-open { display: flex; flex-direction: column; align-items: stretch; padding: 10px 0 2px; border-top: 1px solid var(--line-dark); }
  .has-menu nav a { text-align: left; padding: 12px; }
  .hero { padding-top: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-copy .eyebrow { font-size: 9px; margin-bottom: 22px; }
  h1 { font-size: clamp(43px, 9.5vw, 66px); max-width: 620px; }
  .hero-intro { margin-top: 22px; max-width: 500px; }
  .hero-actions { margin-top: 24px; gap: 10px; }
  .button { font-size: 12px; padding: 12px 14px; gap: 18px; }
  .hero-note { margin-top: 16px; }
  .hero-model { width: 100%; max-width: 540px; margin-inline: auto; }
  .hero-foot { margin-top: 38px; gap: 14px; font-size: 8px; }
  .hero-foot span:last-child { text-align: right; max-width: 130px; }
  .project, .journal-section, .mission-section, .downloads-section { padding-block: 60px; }
  .section-heading .eyebrow { margin-bottom: 18px; }
  h2 { font-size: clamp(32px, 7.3vw, 44px); }
  .project-intro { grid-template-columns: 1fr; gap: 22px; margin: 28px 0 36px; }
  .large-copy { font-size: 20px; }
  .design-detail { grid-template-columns: 1fr; gap: 28px; padding-top: 30px; }
  .detail-copy h3 { font-size: 29px; }
  .heading-inline { display: block; }
  .heading-inline > p { margin-top: 20px; }
  .desktop-break { display: none; }
  .journal-grid { grid-template-columns: 1fr; gap: 20px; margin-top: 30px; }
  .journal-entry { padding: 16px 18px 22px; }
  .journal-entry h3 { font-size: 30px; }
  .entry-image { margin-bottom: 18px; }
  .image-credit { text-align: left; }
  .mission-grid { grid-template-columns: 1fr; gap: 30px; }
  .mission-title .eyebrow { margin-bottom: 24px; }
  .download-list { margin-top: 30px; }
  .download-row { grid-template-columns: 48px minmax(0, 1fr) 20px; gap: 12px; padding: 20px 14px; }
  .file-type { font-size: 8px; padding-inline: 2px; }
  .file-copy strong { font-size: 17px; line-height: 1.4; }
  .file-copy > span { font-size: 12px; margin-top: 6px; }
  .download-action { font-size: 0; gap: 0; }
  .download-action span { font-size: 21px; }
  .archive-note { font-size: 11px; }
  .site-footer { padding-top: 34px; }
  .footer-top { align-items: flex-start; padding-bottom: 28px; }
  .footer-top p { font-size: 24px; }
  .footer-top p span { font-size: 9px; }
  .footer-top .text-link { font-size: 11px; gap: 9px; }
  .footer-bottom { gap: 12px 24px; font-size: 8px; }
}
@media (max-width: 360px) {
  .shell { width: calc(100% - 32px); }
  .hero-copy .eyebrow { font-size: 8px; }
  .button { gap: 12px; }
  .model-specs div { padding-inline: 12px; }
  .footer-top { display: block; }
  .footer-top .text-link { margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .site-header { position: static; background: white; }
  body, .hero, .project, .journal-section, .mission-section, .site-footer { background: #fff; color: #102c35; }
  .shell { width: 100%; }
  .site-header nav, .menu-toggle, .button, .skip-link, .hero-foot, .footer-bottom, .reading-progress { display: none !important; }
  .hero-intro, .journal-entry > p, .journal-section .eyebrow, .entry-top, .entry-bottom, .footer-top .text-link, .image-credit { color: #102c35; }
  .hero, .project, .journal-section, .mission-section, .downloads-section { padding-block: 24px; }
  h1 { font-size: 44px; }
  h1 em { color: inherit; }
  h2 { font-size: 30px; }
  .hero-grid { gap: 30px; }
  .hero-model, .download-row, .journal-entry { break-inside: avoid; box-shadow: none; }
  .journal-entry { background: white; border-color: #abc; }
}