:root {
  --ink: #202228;
  --muted: #59616c;
  --paper: #f8f7f3;
  --white: #fff;
  --line: #d8d9d5;
  --purple: #6840c8;
  --lavender: #bda6f8;
  --wash: #eee9f7;
  --dark: #24272e;
  --radius: 16px;
  --width: 1248px;
  --space: clamp(24px, 5vw, 72px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
::selection { background: #d6c6f4; color: var(--ink); }
a { color: inherit; text-underline-offset: 5px; text-decoration-thickness: 1px; }
a:hover { color: var(--purple); }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button, summary { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--purple); outline-offset: 5px; }
.demo :focus-visible, .contact :focus-visible { outline-color: var(--lavender); }
img, svg { max-width: 100%; }
img { display: block; height: auto; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 550; letter-spacing: -.045em; line-height: 1.12; }
p + p { margin-top: 16px; }
.wrap { width: min(var(--width), calc(100% - var(--space) * 2)); margin-inline: auto; }
.eyebrow { font-size: 13px; font-weight: 650; line-height: 1.6; letter-spacing: .09em; text-transform: uppercase; }
.section-number { color: var(--purple); font-size: 13px; font-weight: 650; font-variant-numeric: tabular-nums; }
.skip-link { position: absolute; z-index: 20; top: 12px; left: 20px; padding: 12px 20px; background: var(--white); transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { min-height: 108px; display: flex; align-items: center; gap: 30px; }
.brand { flex-shrink: 0; }
.brand img { width: 220px; height: 52.8px; }
.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: 30px; }
.desktop-nav a { font-size: 14px; font-weight: 600; text-decoration: none; padding-block: 14px; }
.desktop-nav a[aria-current="page"], .footer-nav a[aria-current="page"], .mobile-menu a[aria-current="page"] { color: var(--purple); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.header-contact { font-size: 14px; font-weight: 650; text-decoration: none; border: 1px solid #999da4; padding: 11px 20px; border-radius: 6px; white-space: nowrap; }
.header-contact:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }
.mobile-menu { display: none; }
.hero { padding-block: 76px 70px; position: relative; }
.hero .eyebrow { max-width: 600px; color: var(--muted); }
.hero-heading { margin-top: 25px; display: flex; justify-content: space-between; gap: 24px; align-items: center; }
h1 { font-size: clamp(52px, 7.4vw, 106px); font-weight: 520; }
h1 span { color: var(--muted); }
.observation-point { flex: 0 0 100px; height: 100px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; margin-right: 30px; }
.observation-point::after { content: ""; width: 30px; height: 30px; background: var(--purple); border-radius: 50%; }
.hero-bottom { display: grid; grid-template-columns: 1.15fr 1fr; gap: 70px; margin-top: 34px; align-items: end; }
.hero-lead { color: var(--muted); font-size: 19px; max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: end; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; min-height: 50px; padding: 12px 20px; border: 1px solid var(--ink); border-radius: 6px; background: var(--ink); color: var(--white); text-decoration: none; font-size: 14px; font-weight: 650; line-height: 1.5; }
.button:hover { background: var(--purple); border-color: var(--purple); color: var(--white); }
.button:active { transform: translateY(1px); }
.button-secondary { background: transparent; color: var(--ink); border-color: #999da4; }
.status { margin-top: 36px; color: var(--muted); font-size: 13px; display: flex; align-items: baseline; gap: 10px; }
.status::before { content: ""; flex: 0 0 6px; height: 6px; border-radius: 50%; background: var(--purple); }
.products { border-top: 1px solid var(--line); padding-block: 30px 76px; }
.section-heading { display: flex; align-items: start; gap: 30px; justify-content: space-between; margin-bottom: 45px; }
.section-heading .eyebrow { color: var(--muted); }
.section-heading > p { color: var(--muted); font-size: 15px; max-width: 350px; }
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.product { padding-top: 26px; border-top: 2px solid var(--ink); min-width: 0; }
.product-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
.stage { color: var(--muted); font-size: 13px; }
.product h2 { font-size: clamp(30px, 3vw, 42px); margin-bottom: 8px; }
.product-type { color: var(--purple); font-size: 15px; font-weight: 600; margin-bottom: 20px; }
.product-copy { max-width: 470px; color: var(--muted); }
.product-context { font-size: 14px; color: var(--muted); margin-top: 20px; }
.text-link { display: inline-flex; align-items: center; gap: 16px; padding-block: 12px; font-size: 14px; font-weight: 650; margin-top: 12px; }
.product-process { margin-top: 23px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 1.9; letter-spacing: .02em; }
.demo { background: var(--dark); color: var(--white); padding-block: 68px; }
.demo-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: end; margin-bottom: 42px; }
.demo .eyebrow { color: var(--lavender); margin-bottom: 20px; }
.demo h2 { font-size: clamp(32px, 4vw, 52px); max-width: 600px; }
.demo-intro { color: #c1c5ce; max-width: 470px; font-size: 16px; }
.illustration { border: 1px solid #4c515c; border-radius: var(--radius); }
.illustration-caption { padding: 19px 24px; border-bottom: 1px solid #4c515c; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; color: #d5c5fb; font-size: 13px; }
.illustration-body { display: grid; grid-template-columns: 1.05fr 1fr; }
.observation-map { position: relative; display: flex; flex-direction: column; justify-content: center; padding: 32px; background: #292c34; border-radius: 0 0 0 var(--radius); }
.observation-map svg { display: block; width: 100%; height: auto; }
.map-key { color: #c1c5ce; display: flex; flex-wrap: wrap; gap: 14px 24px; font-size: 13px; margin-top: 20px; }
.map-key span { display: flex; align-items: center; gap: 9px; }
.key-dot { width: 8px; height: 8px; background: #cbb3ff; border-radius: 50%; }
.key-ring { width: 14px; height: 14px; border: 1px solid #cbb3ff; border-radius: 50%; }
.workflow { list-style: none; padding: 12px 32px; margin: 0; }
.workflow li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; padding-block: 22px; }
.workflow li + li { border-top: 1px solid #4c515c; }
.workflow .step { color: var(--lavender); font-size: 13px; padding-top: 4px; }
.workflow h3 { font-size: 20px; letter-spacing: -.02em; margin-bottom: 8px; }
.workflow p { color: #c1c5ce; font-size: 14px; }
.demo-boundary { margin-top: 24px; display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; }
.demo-boundary strong { font-size: 15px; font-weight: 550; color: #e1d5fb; }
.demo-boundary p { font-size: 13px; color: #c1c5ce; }
.approach { padding-block: 78px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.approach h2 { font-size: clamp(32px, 4vw, 50px); max-width: 450px; margin-top: 20px; }
.approach-copy { color: var(--muted); }
.approach-copy strong { color: var(--ink); font-weight: 600; }
.research-note { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.research-note h3 { color: var(--ink); font-size: 19px; letter-spacing: -.02em; margin-bottom: 10px; }
.research-note p { font-size: 15px; }
.faq { border-top: 1px solid var(--line); padding-block: 30px 58px; }
.faq > h2 { font-size: 24px; margin-bottom: 20px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 18px 4px; font-size: 16px; font-weight: 550; }
.faq details p { color: var(--muted); padding: 0 4px 22px; max-width: 800px; font-size: 15px; }
.contact { background: var(--ink); color: var(--white); padding-block: 62px; }
.contact-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 72px; }
.contact .eyebrow { color: var(--lavender); margin-bottom: 22px; }
.contact h2 { font-size: clamp(32px, 4vw, 50px); max-width: 570px; margin-bottom: 22px; }
.contact p { color: #c1c5ce; max-width: 540px; font-size: 16px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-block: 22px; }
.contact .button { color: var(--ink); background: var(--white); border-color: var(--white); }
.contact .button:hover { background: #ded0fb; border-color: #ded0fb; color: var(--ink); }
.email-address { display: block; width: fit-content; font-size: clamp(16px, 1.7vw, 21px); overflow-wrap: anywhere; color: var(--white); }
.contact a:hover { color: #ded0fb; }
.copy-email { border: 0; border-bottom: 1px solid #9b9fa8; background: transparent; color: #e1d5fb; padding: 8px 0; font-size: 14px; margin-top: 9px; }
.copy-email:hover { color: var(--white); }
.contact .contact-note, .contact .copy-status { font-size: 13px; margin-top: 15px; }
.copy-status:empty { display: none; }
.site-footer { padding-block: 34px 28px; }
.footer-top { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; justify-content: space-between; padding-bottom: 30px; }
.footer-top .brand img { width: 180px; height: 43.2px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: 14px; }
.footer-nav a { padding-block: 10px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding-top: 22px; color: var(--muted); font-size: 13px; }
.page-hero { padding-block: 66px 58px; border-bottom: 1px solid var(--line); }
.page-hero .eyebrow { color: var(--purple); margin-bottom: 24px; }
.page-hero h1 { font-size: clamp(44px, 6vw, 80px); max-width: 1100px; }
.page-lead { margin-top: 25px; max-width: 740px; color: var(--muted); font-size: 19px; }
.page-hero .hero-actions { margin-top: 28px; justify-content: start; }
.content-section { padding-block: 58px; }
.content-section + .content-section { border-top: 1px solid var(--line); }
.content-section h2 { font-size: clamp(29px, 3.4vw, 44px); margin-top: 15px; max-width: 650px; }
.content-section h3 { font-size: 23px; letter-spacing: -.025em; margin-block: 18px 14px; }
.content-section .section-heading { margin-bottom: 30px; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.prose { color: var(--muted); max-width: 720px; }
.prose h3, .prose strong { color: var(--ink); }
.prose li + li { margin-top: 8px; }
.product-family, .principle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.product-family article, .principle-grid article { border-top: 1px solid var(--line); padding-top: 22px; min-width: 0; }
.product-family .product { border-top: 2px solid var(--ink); }
.product-family p, .principle-grid p { color: var(--muted); }
.product-family .section-number, .principle-grid .section-number { color: var(--purple); }
.workflow-rail { list-style: none; margin: 0; padding: 30px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; }
.workflow-rail li { min-width: 0; }
.workflow-rail .step { color: var(--lavender); font-size: 13px; }
.workflow-rail h3 { color: var(--white); font-size: 20px; letter-spacing: -.02em; margin-block: 18px 14px; }
.workflow-rail p, .review-example p { color: #c1c5ce; font-size: 14px; }
.review-example { padding: 24px 30px; border-top: 1px solid #4c515c; }
.review-example .eyebrow { margin-bottom: 12px; color: var(--lavender); }
.review-example > p { max-width: 850px; }
.source-item { border-top: 1px solid var(--line); padding-block: 22px; }
.source-item p { color: var(--muted); }
.source-item h3 { margin-top: 14px; }
.source-item .eyebrow { color: var(--purple); }
.source-note { color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); padding-top: 22px; }
.source-date { font-size: 14px; }
.research-brief { border-top: 1px solid var(--line); padding-block: 36px 48px; }
.research-brief h2 { font-size: clamp(28px, 3vw, 38px); margin-top: 14px; }
.research-brief .section-heading { align-items: end; margin-bottom: 28px; }
.research-brief h3 { font-size: 23px; letter-spacing: -.025em; margin-block: 12px; }
.research-brief article > p:last-child { color: var(--muted); font-size: 15px; }
.research-brief .eyebrow { font-size: 12px; }
.research-brief .source-note { margin-top: 26px; }
.contact-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.contact-options article { border-top: 2px solid var(--ink); padding-top: 22px; min-width: 0; }
.contact-options p { color: var(--muted); }
.contact-options h2 { font-size: 27px; margin-block: 14px 20px; }
.contact-options .button { margin-top: 24px; }
.contact-email { background: var(--wash); padding-block: 50px; }
.contact-email .email-address { color: var(--ink); font-size: clamp(17px, 3vw, 34px); margin-top: 20px; }
.contact-email .copy-email { color: var(--purple); }
.contact-email p { color: var(--muted); }
.contact-email .copy-status { font-size: 14px; margin-top: 12px; }
.legal { max-width: 860px; padding-block: 62px; }
.legal h1 { font-size: clamp(42px, 5vw, 66px); margin-block: 20px 24px; }
.legal h2 { font-size: 27px; margin-block: 38px 16px; }
.legal p, .legal li { color: var(--muted); }
.legal li + li { margin-top: 8px; }
.legal-meta { font-size: 14px; padding-block: 18px; border-block: 1px solid var(--line); }
.rights-note { margin-block: 20px; border-left: 3px solid var(--purple); padding: 8px 20px; background: var(--wash); }
.rights-note h3 { font-size: 21px; letter-spacing: -.02em; margin-bottom: 12px; }
.error-page { min-height: 55vh; }
.error-page .hero-actions { margin-block: 28px; }
[hidden] { display: none !important; }
@media (max-width: 1050px) {
  .workflow-rail { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .desktop-nav { gap: 20px; }
  .brand img { width: 185px; height: 44.4px; }
  .header-inner { gap: 24px; }
  .hero-bottom { gap: 32px; grid-template-columns: 1fr; }
  .hero-actions { justify-content: start; }
  .observation-point { margin-right: 0; flex-basis: 70px; height: 70px; }
  .observation-point::after { width: 22px; height: 22px; }
}
@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 85px; gap: 18px; }
  .header-contact { margin-left: auto; }
  .mobile-menu { display: block; }
  .mobile-menu summary { width: 48px; min-height: 48px; display: flex; align-items: center; justify-content: center; list-style: none; cursor: pointer; font-size: 13px; font-weight: 650; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu[open] summary { color: var(--purple); text-decoration: underline; text-underline-offset: 5px; }
  .mobile-menu nav { position: absolute; top: 84px; left: var(--space); right: var(--space); z-index: 10; display: grid; padding: 14px 22px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 14px 28px #20222812; }
  .mobile-menu nav a { padding-block: 13px; font-size: 16px; text-decoration: none; }
  .product-grid, .demo-heading, .approach, .contact-inner { gap: 36px; }
  .illustration-body, .demo-boundary { grid-template-columns: 1fr; }
  .observation-map { border-radius: 0; padding: 24px; }
  .observation-map svg { max-height: 340px; }
  .demo-boundary { gap: 12px; }
  .two-column { gap: 36px; }
  .product-family, .principle-grid, .contact-options { gap: 24px; }
}
@media (max-width: 768px) {
  .product-family, .principle-grid, .contact-options { grid-template-columns: 1fr; gap: 32px; }
  .workflow-rail { grid-template-columns: 1fr; gap: 0; padding: 4px 24px; }
  .workflow-rail li { padding-block: 22px; }
  .workflow-rail li + li { border-top: 1px solid #4c515c; }
  .workflow-rail h3 { margin-block: 12px; }
}
@media (max-width: 600px) {
  :root { --space: 22px; }
  body { font-size: 16px; }
  .header-inner { min-height: 78px; gap: 8px; }
  .brand img { width: 154px; height: 36.96px; }
  .header-contact { border: 0; padding: 12px 4px; font-size: 13px; }
  .mobile-menu summary { width: 44px; min-height: 44px; }
  .mobile-menu nav { top: 77px; }
  .hero { padding-block: 48px 45px; }
  .hero .eyebrow { font-size: 11px; max-width: 290px; }
  .hero-heading { margin-top: 22px; }
  h1 { font-size: clamp(42px, 10.7vw, 62px); }
  .observation-point { display: none; }
  .hero-bottom { margin-top: 25px; gap: 25px; }
  .hero-lead { font-size: 17px; }
  .hero-actions { gap: 10px; }
  .hero-actions .button { width: 100%; justify-content: space-between; }
  .status { font-size: 12px; margin-top: 25px; }
  .section-heading { display: block; margin-bottom: 30px; }
  .section-heading > p { margin-top: 12px; }
  .product-grid, .demo-heading, .approach, .contact-inner { grid-template-columns: 1fr; gap: 36px; }
  .products { padding-block: 25px 46px; }
  .product { padding-top: 20px; }
  .product-top { margin-bottom: 18px; }
  .product h2 { font-size: 35px; }
  .product-type { margin-bottom: 15px; }
  .product-context { margin-top: 15px; }
  .demo { padding-block: 42px; }
  .demo-heading { gap: 22px; margin-bottom: 26px; }
  .demo h2, .approach h2, .contact h2 { font-size: 34px; }
  .illustration-caption { padding: 16px 18px; font-size: 13px; }
  .observation-map { padding: 18px; }
  .map-key { font-size: 12px; gap: 10px; }
  .workflow { padding: 0 18px; }
  .workflow li { gap: 9px; padding-block: 22px; }
  .workflow h3 { font-size: 19px; }
  .approach { padding-block: 46px; gap: 26px; }
  .faq { padding-bottom: 42px; }
  .contact { padding-block: 42px; }
  .contact-inner { gap: 24px; }
  .contact-actions .button { flex: 1 1 auto; padding-inline: 12px; }
  .site-footer { padding-top: 28px; }
  .footer-top { align-items: start; gap: 18px; }
  .footer-nav { gap: 4px 20px; }
  .page-hero { padding-block: 42px; }
  .page-hero h1 { font-size: clamp(38px, 10.2vw, 52px); }
  .page-lead { font-size: 17px; }
  .content-section { padding-block: 42px; }
  .two-column { grid-template-columns: 1fr; gap: 24px; }
  .content-section h2 { font-size: 32px; }
  .review-example { padding: 22px 24px; }
  .legal { padding-block: 42px; }
  .legal h2 { font-size: 25px; }
}
@media (max-width: 350px) {
  :root { --space: 16px; }
  .brand img { width: 144px; height: 34.56px; }
  .header-inner { gap: 5px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button:active { transform: none; }
}
