:root {
  color-scheme: light dark;
  --page: #f7f9fc;
  --surface: #ffffff;
  --surface-alt: #edf2f8;
  --text: #202d3d;
  --muted: #526176;
  --line: #cbd5e2;
  --accent: #2359b4;
  --button: #215dba;
  --logo-blend: normal;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #10151b;
    --surface: #17202d;
    --surface-alt: #1c293b;
    --text: #e8edf2;
    --muted: #acbdd0;
    --line: #344356;
    --accent: #a8caff;
    --button: #215dba;
    --logo-blend: screen;
  }
}
* { box-sizing: border-box; }
html { scroll-padding-top: 110px; }
body { margin: 0; background: var(--page); color: var(--text); font-size: 16px; line-height: 1.65; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 5px; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
.container { width: min(1152px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; top: 10px; left: 16px; padding: 10px 18px; background: var(--surface); z-index: 20; transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; background: var(--page); border-bottom: 1px solid var(--line); z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 90px; gap: 24px; }
.brand { width: 224px; display: block; flex-shrink: 0; }
.brand picture { display: block; height: 58px; overflow: hidden; }
.brand img { display: block; width: 224px; height: auto; transform: translateY(-8px); mix-blend-mode: var(--logo-blend); }
.header-inner nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.header-inner nav a { color: var(--muted); text-decoration: none; }
.header-inner nav a:hover, .header-inner nav a[aria-current] { color: var(--text); }
.account-link { border: 1px solid var(--line); padding: 7px 16px; border-radius: 4px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 60px; padding-block: 86px 72px; align-items: center; }
.eyebrow { color: var(--accent); text-transform: uppercase; font-size: 11px; font-weight: 650; letter-spacing: .14em; margin: 0 0 23px; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(38px, 3.4vw, 52px); font-weight: 550; letter-spacing: -.055em; }
h1 span { color: var(--accent); }
h2 { font-size: clamp(30px, 3.1vw, 43px); font-weight: 500; letter-spacing: -.035em; }
h3 { font-size: 21px; font-weight: 550; letter-spacing: -.015em; }
h4 { font-size: 14px; font-weight: 650; letter-spacing: .01em; }
p { margin: 18px 0 0; }
.hero-description { font-size: 18px; line-height: 1.75; color: var(--muted); max-width: 640px; margin-top: 28px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px 28px; margin-top: 32px; font-size: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 48px; padding: 12px 20px; border-radius: 4px; text-decoration: none; font-weight: 550; }
.primary { background: var(--button); color: #fff; border: 1px solid var(--button); }
.primary:hover { background: #174b99; }
.text-link { font-weight: 500; }
.hero-note { border-block: 1px solid var(--line); padding-block: 25px; }
.note-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; font-weight: 600; font-size: 18px; }
.status-dot { width: 7px; height: 7px; background: var(--accent); border-radius: 50%; }
.status-label { margin-left: auto; font-size: 11px; font-weight: 450; color: var(--muted); border: 1px solid var(--line); padding: 3px 7px; border-radius: 3px; }
.note-kicker { font-size: 12px; color: var(--muted); margin-top: 24px; }
.question-list { list-style: none; padding: 0; margin: 16px 0 0; }
.question-list li { display: flex; align-items: baseline; gap: 18px; padding-block: 14px; border-bottom: 1px solid var(--line); font-size: 16px; }
.number { font-size: 11px; font-family: ui-monospace, monospace; color: var(--accent); }
.note-foot { color: var(--muted); font-size: 13px; margin-top: 22px; }
.section-nav { display: flex; gap: 12px 28px; flex-wrap: wrap; border-block: 1px solid var(--line); padding-block: 22px; font-size: 12px; }
.section-nav a { color: var(--muted); text-decoration: none; }
.section-nav a:hover { color: var(--accent); }
.platform-status { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 70px; margin-top: 72px; padding: 40px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.platform-status h2 { font-size: 30px; }
.status-copy { display: grid; gap: 28px; }
.status-copy h3 { font-size: 17px; }
.status-copy p:not(.status-tag) { font-size: 14px; line-height: 1.75; color: var(--muted); margin-top: 10px; }
.status-tag { font-size: 10px; color: var(--accent); text-transform: uppercase; letter-spacing: .12em; font-weight: 650; margin: 0 0 12px; }
.planned { color: var(--muted); }
.section { margin-top: 88px; padding-top: 72px; border-top: 1px solid var(--line); }
.two-column { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 85px; }
.prose { color: var(--muted); }
.prose p:first-child { margin-top: 0; }
.section-heading { max-width: 740px; }
.section-heading > p:not(.eyebrow) { color: var(--muted); margin-top: 24px; max-width: 690px; }
.reasoning-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 38px 0 0; border-block: 1px solid var(--line); }
.reasoning-grid > div { padding: 24px; border-right: 1px solid var(--line); }
.reasoning-grid > div:first-child { padding-left: 0; }
.reasoning-grid > div:last-child { border-right: 0; }
.reasoning-grid dt { font-weight: 550; }
.reasoning-grid dt span { display: block; font-family: ui-monospace, monospace; font-size: 11px; font-weight: normal; color: var(--accent); margin-bottom: 10px; }
.reasoning-grid dd { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.section-afterword { max-width: 800px; color: var(--muted); font-size: 14px; margin-top: 27px; }
.evidence-panel { margin-top: 38px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.case-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 30px; border-bottom: 1px solid var(--line); }
.case-header h3 { font-size: 24px; }
.assessment-label { font-size: 12px; line-height: 1.7; color: var(--accent); border-left: 2px solid var(--accent); padding-left: 14px; flex-shrink: 0; }
.case-scope { display: grid; grid-template-columns: 1fr 1.2fr 1fr; gap: 28px; background: var(--surface-alt); padding: 24px 30px; border-bottom: 1px solid var(--line); }
.case-scope p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.case-scope strong { display: block; margin-bottom: 8px; color: var(--text); font-weight: 550; }
.case-body { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; padding: 30px; }
.evidence-records dl { margin: 24px 0 0; }
.evidence-records dl > div + div { margin-top: 26px; }
.evidence-records dt { font-size: 14px; font-weight: 550; }
.evidence-records dd { margin: 10px 0 0 43px; color: var(--muted); font-size: 14px; }
.reference { display: inline-block; color: var(--accent); font: 11px ui-monospace, monospace; margin-right: 12px; }
.scope-note { color: var(--muted); font-size: 12px; line-height: 1.75; }
.case-assessment h4:not(:first-child) { margin-top: 24px; }
.case-assessment p { color: var(--muted); font-size: 14px; margin-top: 9px; }
.next-step { border-top: 1px solid var(--line); padding: 25px 30px; }
.next-step > p:not(.scope-note) { max-width: 900px; font-size: 14px; margin-top: 10px; }
.next-step .eyebrow { font-size: 10px; }
.learning-loop { margin-top: 38px; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.loop-tabs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.loop-tabs button { position: relative; text-align: left; background: var(--surface); color: var(--muted); border: 0; border-right: 1px solid var(--line); border-bottom: 3px solid transparent; padding: 22px 20px; font-size: 13px; cursor: pointer; line-height: 1.55; }
.loop-tabs button:last-child { border-right: 0; }
.loop-tabs button span { display: block; color: var(--accent); font: 11px ui-monospace, monospace; margin-bottom: 14px; }
.loop-tabs button:not(:last-child)::after { content: "→"; position: absolute; right: 18px; top: 17px; color: var(--muted); }
.loop-tabs button[aria-selected="true"] { background: var(--surface-alt); color: var(--text); border-bottom-color: var(--accent); }
.loop-tabs button:hover { color: var(--text); background: var(--surface-alt); }
.loop-tabs button:focus-visible { outline-offset: -5px; z-index: 1; }
.loop-panel { padding: 30px; border-top: 1px solid var(--line); background: var(--surface); min-height: 170px; }
.loop-panel h3 { font-size: 21px; }
.loop-panel p { color: var(--muted); max-width: 800px; font-size: 14px; margin-top: 15px; }
.loop-panel:focus-visible { outline-offset: -5px; }
.action-sequence { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; margin-top: 26px; font-size: 12px; color: var(--accent); }
.action-sequence span[aria-hidden] { color: var(--muted); }
.ai-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 70px; }
.ai-principles { border-left: 2px solid var(--accent); padding-left: 30px; }
.ai-principles h3 { font-size: 18px; }
.ai-principles ul { padding: 0; margin: 26px 0 0; list-style: none; }
.ai-principles li { font-size: 14px; color: var(--muted); margin-top: 20px; }
.ai-principles strong { color: var(--text); font-weight: 550; }
.measure-table { margin-top: 36px; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
caption { text-align: left; color: var(--muted); font-size: 12px; margin-bottom: 15px; }
th, td { padding: 17px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead { background: var(--surface-alt); }
thead th { font-size: 12px; color: var(--accent); font-weight: 550; }
tbody th { width: 32%; font-weight: 550; padding-left: 0; }
tbody td { color: var(--muted); }
.founder-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 85px; }
.closing { margin-top: 100px; padding-block: 64px; border-block: 1px solid var(--line); }
.closing p:not(.eyebrow) { color: var(--muted); max-width: 650px; }
.site-footer { display: flex; align-items: baseline; gap: 24px; padding-block: 30px; color: var(--muted); font-size: 11px; }
.site-footer > span { font-weight: 650; color: var(--text); letter-spacing: .06em; }
.site-footer p { margin: 0; }
.site-footer a { margin-left: auto; flex-shrink: 0; }
@media (max-width: 1000px) {
  .container { width: calc(100% - 64px); }
  .hero { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 32px; }
  h1 { font-size: 44px; }
  .hero-description { font-size: 16px; }
  .platform-status, .two-column, .founder-section, .ai-section { gap: 40px; }
  .platform-status { padding: 28px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 90px; }
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 78px; gap: 12px; }
  .brand { width: 164px; }
  .brand picture { height: 44px; }
  .brand img { width: 164px; transform: translateY(-4px); }
  .header-inner nav { gap: 16px; font-size: 12px; }
  .account-link { display: none; }
  .hero { grid-template-columns: 1fr; padding-block: 50px 40px; gap: 40px; }
  h1 { font-size: clamp(35px, 7vw, 48px); }
  h2 { font-size: 32px; }
  .hero-description { margin-top: 22px; }
  .hero-actions { gap: 20px; }
  .hero-note { max-width: 520px; }
  .platform-status, .two-column, .founder-section, .ai-section { grid-template-columns: 1fr; gap: 30px; }
  .platform-status { padding: 24px; margin-top: 42px; }
  .platform-status h2 { font-size: 28px; }
  .section { margin-top: 56px; padding-top: 44px; }
  .section-heading { max-width: none; }
  .reasoning-grid { grid-template-columns: 1fr 1fr; }
  .reasoning-grid > div { padding: 20px 16px; }
  .reasoning-grid > div:nth-child(2) { border-right: 0; }
  .reasoning-grid > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .reasoning-grid > div:nth-child(3) { padding-left: 0; }
  .case-header { flex-direction: column; align-items: flex-start; padding: 24px; }
  .case-header h3 { font-size: 23px; }
  .case-scope, .case-body { grid-template-columns: 1fr; gap: 22px; padding: 24px; }
  .case-assessment { border-top: 1px solid var(--line); padding-top: 24px; }
  .next-step { padding: 24px; }
  .loop-tabs { grid-template-columns: 1fr 1fr; }
  .loop-tabs button { border-bottom-width: 2px; padding: 17px; }
  .loop-tabs button:nth-child(2n) { border-right: 0; }
  .loop-tabs button:last-child { grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .loop-panel { padding: 24px; min-height: 210px; }
  .ai-principles { padding-left: 20px; }
  th, td { padding: 14px 10px; font-size: 12px; }
  tbody th { width: 37%; }
  .closing { margin-top: 60px; padding-block: 44px; }
  .site-footer { align-items: flex-start; flex-wrap: wrap; gap: 12px; }
  .site-footer p { flex-basis: 100%; order: 3; }
}
@media (max-width: 360px) {
  .brand { width: 140px; }
  .brand img { width: 140px; transform: translateY(-1px); }
  .header-inner nav { gap: 10px; }
  .container { width: calc(100% - 32px); }
  h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }