/* Native CSS. DeepSeek-inspired restraint, with VisionOS photography and branding.
   Design dials: variance 4 / motion 2 / density 3.
   Shapes: 12px controls, 24px media/panels. Theme follows system preference. */
:root {
  color-scheme: light dark;
  --page: #fafbfe;
  --surface: #f0f3f9;
  --panel: #fdfdff;
  --ink: #172238;
  --muted: #526078;
  --accent: #365ed6;
  --accent-hover: #264bb6;
  --on-accent: #fdfdff;
  --tint: #e9efff;
  --line: #d6dce9;
  --media: #e8ebf1;
  --radius: 24px;
  --control-radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: var(--page); color: var(--ink); font: 18px/1.65 'Avenir Next', Avenir, 'Segoe UI', sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: 5px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 4px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3, .wordmark { font-weight: 600; letter-spacing: -.045em; line-height: 1.1; }
h1 { font-size: clamp(54px, 5.8vw, 84px); }
h2 { font-size: clamp(36px, 4.1vw, 58px); text-wrap: balance; }
h3 { font-size: 27px; letter-spacing: -.03em; line-height: 1.25; }
p { text-wrap: pretty; }
img { display: block; max-width: 100%; }
figure img { width: 100%; border-radius: var(--radius); background: var(--media); }
figcaption { margin-top: 12px; color: var(--muted); font-size: 14px; }
.wrap { width: min(100% - 112px, 1280px); margin-inline: auto; }
.site-header { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 9px; font-size: 26px; text-decoration: none; flex-shrink: 0; }
.wordmark img { object-fit: contain; flex-shrink: 0; }
.site-header nav { display: flex; align-items: center; gap: 27px; font-size: 14px; font-weight: 500; }
.site-header nav > a:not(.button) { display: inline-flex; min-height: 44px; align-items: center; text-decoration: none; }
.site-header nav > a:hover { color: var(--accent); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 52px; padding: 13px 24px; border: 1px solid transparent; border-radius: var(--control-radius); background: var(--accent); color: var(--on-accent); font-size: 16px; font-weight: 600; line-height: 1.5; text-decoration: none; transition: background .2s ease, transform .2s ease; }
.button:hover { background: var(--accent-hover); }
.button:active { transform: scale(.98); }
.button.small { min-height: 44px; padding: 10px 16px; font-size: 14px; gap: 18px; }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button.secondary:hover { background: var(--tint); border-color: var(--accent); }
.text-link { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; font-size: 16px; font-weight: 600; }
.hero { display: grid; grid-template-columns: 1.12fr 1fr; gap: 64px; align-items: center; padding-block: 48px 64px; }
.hero-copy { padding-bottom: 28px; }
.eyebrow { color: var(--accent); font-size: 12px; text-transform: uppercase; letter-spacing: .13em; font-weight: 700; margin-bottom: 26px; }
.hero h1 span, .mission h2 span { color: var(--accent); }
.lead { color: var(--muted); max-width: 490px; margin-top: 28px; font-size: 20px; line-height: 1.65; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px 28px; margin-top: 32px; }
.hero-photo img { height: 530px; object-fit: cover; object-position: center 48%; }
.section { padding-block: 96px; }
.surface { background: var(--surface); }
.section-label { color: var(--accent); font-size: 16px; font-weight: 600; margin-bottom: 22px; }
.mission { text-align: center; border-top: 1px solid var(--line); padding-block: 88px 100px; }
.mission-statement { max-width: 860px; margin: 30px auto 20px; font-size: clamp(22px, 2.1vw, 28px); line-height: 1.5; letter-spacing: -.02em; }
.mission-detail { max-width: 760px; margin-inline: auto; color: var(--muted); }
.section-heading { max-width: 800px; margin-bottom: 48px; }
.section-heading > p:not(.eyebrow) { color: var(--muted); margin-top: 24px; max-width: 650px; }
.guidance-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 72px; align-items: center; }
.guidance-photo img { height: 540px; object-fit: cover; object-position: center 56%; }
.reach-steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 36px; }
.reach-steps li { display: grid; grid-template-columns: 34px 1fr; gap: 20px; }
.step-index { font-size: 14px; color: var(--accent); font-weight: 600; padding-top: 5px; }
.reach-steps h3 { margin-bottom: 12px; }
.reach-steps p { color: var(--muted); font-size: 17px; }
.prototype-note { color: var(--muted); font-size: 14px; max-width: 740px; margin-top: 32px; }
.capability-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.capability { padding: 36px; border-radius: var(--radius); }
.capability h3 { margin-bottom: 16px; }
.capability > p:not(.example):not(.section-label) { color: var(--muted); }
.capability .example { font-size: 22px; color: var(--accent); margin-bottom: 48px; letter-spacing: -.025em; }
.scene { background: var(--tint); }
.recall { background: var(--surface); }
.family { border: 1px solid var(--line); }
.family .text-link { margin-top: 20px; }
.control { align-self: center; padding-inline: 40px; }
.fine-print { font-size: 14px; margin-top: 20px; }
.technology-details { max-width: 980px; }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 23px; list-style: none; cursor: pointer; font-size: 23px; font-weight: 500; letter-spacing: -.02em; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--accent); font-size: 28px; font-weight: 400; flex-shrink: 0; }
details[open] summary::after { content: '−'; }
summary:hover { color: var(--accent); }
.detail-content { max-width: 760px; color: var(--muted); padding: 0 32px 24px 0; }
.detail-content p + p { margin-top: 12px; }
.hardware-gallery { margin-top: 64px; }
.hardware-gallery > h3 { margin-bottom: 28px; }
.gallery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.gallery-grid img { height: 500px; object-fit: contain; }
.story { max-width: 1000px; }
.story-copy { margin-top: 32px; max-width: 760px; }
.story-copy p { color: var(--muted); margin-bottom: 20px; }
.story-copy .statement { font-size: 24px; color: var(--ink); line-height: 1.5; }
.contact { text-align: center; background: var(--tint); }
.contact-logo { margin: 0 auto 24px; }
.contact h2 { margin-bottom: 24px; }
.contact p { color: var(--muted); }
.contact .button { margin-top: 32px; }
.contact .contact-note { font-size: 13px; margin-top: 16px; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding-block: 44px; }
.site-footer p { color: var(--muted); font-size: 14px; margin-top: 16px; }
.footer-links { display: flex; gap: 28px; font-size: 15px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; }
.skip-link { position: absolute; top: 12px; left: 20px; padding: 12px 20px; background: var(--ink); color: var(--page); transform: translateY(-200%); z-index: 1; }
.skip-link:focus { transform: none; }
.accessibility-content { max-width: 820px; padding-block: 64px 96px; }
.accessibility-content h1 { font-size: clamp(38px, 5vw, 60px); margin-bottom: 32px; }
.accessibility-content h2 { font-size: 28px; margin: 40px 0 20px; }
.accessibility-content p, .accessibility-content li { color: var(--muted); }
.accessibility-content li { margin-bottom: 12px; }
@media (prefers-color-scheme: dark) {
  :root { --page: #111722; --surface: #192231; --panel: #1d2738; --ink: #edf1fb; --muted: #b6c1d5; --accent: #9bb5ff; --accent-hover: #bdd0ff; --on-accent: #101d3b; --tint: #1c2b47; --line: #3a485f; --media: #242f40; }
}
@media (max-width: 1100px) {
  .wrap { width: calc(100% - 64px); }
  .site-header nav { gap: 18px; font-size: 13px; }
  .hero { gap: 36px; }
  .hero-photo img { height: 490px; }
  .hero h1 { font-size: 64px; }
  .guidance-layout { gap: 40px; }
  .guidance-photo img { height: 520px; }
}
@media (max-width: 900px) {
  .site-header { flex-wrap: wrap; padding-block: 18px; gap: 12px; }
  .site-header nav { width: 100%; justify-content: space-between; }
  .hero h1 { font-size: 54px; }
  .hero { gap: 28px; }
  .hero .lead { font-size: 18px; }
  .hero-photo img { height: 450px; }
}
@media (max-width: 767px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { padding-block: 16px; }
  .site-header nav { flex-wrap: wrap; justify-content: flex-start; gap: 4px 22px; }
  .site-header .button { margin-block: 4px; }
  .hero { grid-template-columns: 1fr; padding-block: 32px 48px; gap: 32px; }
  .hero-copy { padding: 0; }
  .hero h1 { font-size: clamp(44px, 9.4vw, 68px); }
  .hero .eyebrow { font-size: 11px; margin-bottom: 20px; }
  .hero .lead { max-width: 540px; font-size: 19px; margin-top: 24px; }
  .hero-photo img { height: 460px; }
  .actions { gap: 12px 24px; margin-top: 28px; }
  .section { padding-block: 64px; }
  .mission { text-align: left; }
  .mission-statement { font-size: 23px; }
  .section-heading { margin-bottom: 32px; }
  .guidance-layout, .capability-grid, .gallery-grid { grid-template-columns: 1fr; }
  .guidance-layout { gap: 36px; }
  .guidance-photo img { height: 420px; }
  .reach-steps { gap: 30px; }
  .reach-steps li { grid-template-columns: 26px 1fr; gap: 14px; }
  .capability { padding: 28px; }
  .capability .example { margin-bottom: 32px; }
  .control { padding: 24px 4px 0; }
  summary { font-size: 20px; }
  .gallery-grid img { height: auto; aspect-ratio: 3 / 4; }
  .hardware-gallery { margin-top: 48px; }
  .story-copy .statement { font-size: 22px; }
  .site-footer { flex-direction: column; align-items: flex-start; padding-block: 32px; }
}
@media (max-width: 380px) {
  .hero h1 { font-size: 44px; }
  .site-header nav { gap: 4px 18px; }
  .button { padding-inline: 20px; }
  .hero-photo img { height: 380px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
@media (forced-colors: active) {
  .button, .capability { border: 1px solid ButtonText; }
  a:focus-visible, summary:focus-visible { outline-color: Highlight; }
}