@font-face { font-family: 'Newsreader'; font-style: normal; font-weight: 400; font-display: swap; src: url('assets/fonts/newsreader-regular.ttf') format('truetype'); }
@font-face { font-family: 'Newsreader'; font-style: italic; font-weight: 400; font-display: swap; src: url('assets/fonts/newsreader-italic.ttf') format('truetype'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400; font-display: swap; src: url('assets/fonts/plex-sans-regular.ttf') format('truetype'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600; font-display: swap; src: url('assets/fonts/plex-sans-semibold.ttf') format('truetype'); }
:root {
  color-scheme: light;
  --ink: #26364b;
  --muted: #677489;
  --blue: #4168b8;
  --line: #e3e8ef;
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--ink);
  background: #fff;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 40px; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 6px; }
::selection { background: #dbe6ff; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 10; padding: 12px 20px; background: #fff; }
.skip-link:focus { top: 12px; }
.header, .footer { max-width: 1200px; margin: auto; display: flex; align-items: center; justify-content: space-between; padding: 26px 40px; gap: 24px; }
.header { position: relative; z-index: 1; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 21px; line-height: 1; letter-spacing: -1.1px; flex-shrink: 0; }
.brand-mark { width: 32px; height: 32px; display: block; flex-shrink: 0; }
.brand-mark img { display: block; width: 100%; height: 100%; object-fit: contain; transform: scale(1.45); mix-blend-mode: multiply; }
nav { display: flex; align-items: center; gap: 32px; font-size: 13px; color: #617087; }
nav a { white-space: nowrap; transition: color .2s; }
nav a:hover, .footer>a:last-child:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 6px; }
.nav-github { padding: 10px 0; }
.nav-github span { margin-left: 6px; }
.hero { min-height: 730px; position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 10%, #fafcfe 100%); }
#data-field { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; max-width: 1200px; margin: auto; padding: 143px 40px 160px; pointer-events: none; }
.hero-copy a { pointer-events: auto; }
.eyebrow { font-size: 11px; font-weight: 400; letter-spacing: 1.8px; line-height: 1.6; color: var(--blue); margin: 0 0 26px; }
.hero-eyebrow { font-size: 11px; letter-spacing: 2px; margin-bottom: 29px; }
h1 { font-family: 'Newsreader', Georgia, serif; font-size: clamp(60px, 5.7vw, 84px); line-height: 1.09; font-weight: 400; letter-spacing: -2.6px; margin: 0 0 28px; }
.title-line { display: block; width: fit-content; animation: line-in .9s both; }
.title-line + .title-line { color: var(--blue); animation-delay: .12s; }
.hero-description { font-size: 17px; line-height: 1.8; color: #65768d; margin: 0; max-width: 470px; }
.desktop-break { display: none; }
.hero-actions { display: flex; align-items: center; gap: 36px; margin-top: 34px; }
.button { display: inline-flex; justify-content: space-between; align-items: center; gap: 26px; padding: 12px 0; min-height: 46px; font-size: 15px; line-height: 1.5; border-bottom: 1px solid #9baabc; transition: border-color .2s, color .2s; }
.button span { display: inline-block; font-size: 17px; transition: transform .25s; }
.button-primary { color: var(--ink); }
.button-secondary { color: #68788d; border-color: transparent; gap: 12px; }
.button:hover { color: var(--blue); border-color: var(--blue); }
.button:hover span { transform: translate(3px, -3px); }
.hero-actions .button-primary:hover span { transform: translateY(3px); }
.field-caption { position: absolute; left: 60%; right: 4%; bottom: 155px; text-align: center; font-size: 10px; letter-spacing: 2px; color: #8a98aa; }
.hero-footnote { position: absolute; bottom: 35px; left: max(40px, calc((100% - 1120px) / 2)); right: max(40px, calc((100% - 1120px) / 2)); display: flex; justify-content: space-between; gap: 20px; padding-top: 18px; border-top: 1px solid var(--line); color: #8390a2; font-size: 11px; }
.hero-footnote span:first-child { letter-spacing: 1.5px; font-size: 10px; }
.section { max-width: 1200px; margin: auto; padding: 110px 40px; }
.research { display: grid; grid-template-columns: 1fr 1.25fr; gap: 96px; }
h2 { font-family: 'Newsreader', Georgia, serif; font-size: clamp(36px, 3.5vw, 48px); line-height: 1.15; font-weight: 400; letter-spacing: -1.8px; margin: 0 0 25px; }
.section-heading>p:last-child, .approach-heading>p:last-child { color: var(--muted); font-size: 16px; line-height: 1.85; max-width: 390px; }
.question { display: flex; gap: 25px; padding: 28px 0; border-top: 1px solid var(--line); }
.question:first-child { padding-top: 0; border: 0; }
.question:last-child { padding-bottom: 0; }
.question-index { padding-top: 2px; font-size: 11px; color: #91a3be; }
.topic { color: var(--blue); font-size: 10px; letter-spacing: 1.5px; margin: 0 0 10px; }
h3 { font-size: 21px; font-weight: 600; line-height: 1.5; letter-spacing: -.7px; margin: 0 0 10px; }
.question p:last-child, .steps p { font-size: 16px; color: var(--muted); line-height: 1.8; margin: 0; }
.approach { background: #f8fafc; border-top: 1px solid #edf0f5; border-bottom: 1px solid #edf0f5; }
.approach-inner { display: grid; grid-template-columns: 1fr 1.25fr; gap: 96px; }
.approach h2 span { color: var(--blue); }
.steps { list-style: none; padding: 0; margin: 0; }
.steps li { position: relative; display: flex; align-items: flex-start; gap: 25px; padding: 0 0 38px; }
.steps li:last-child { padding-bottom: 0; }
.steps li:not(:last-child)::after { content: ''; position: absolute; left: 16px; top: 38px; bottom: 6px; width: 1px; background: #d8e2ef; }
.step-number { width: 34px; height: 34px; color: var(--blue); display: grid; place-items: center; flex-shrink: 0; font-size: 12px; }
.steps h3 { margin-top: 3px; }
.connect { text-align: center; padding-top: 105px; padding-bottom: 105px; }
.connect>p:not(.eyebrow) { color: var(--muted); font-size: 14px; line-height: 1.9; margin: 0 0 24px; }
.connect h2 { font-size: clamp(36px, 3.5vw, 48px); }
.footer { border-top: 1px solid var(--line); padding-top: 28px; padding-bottom: 28px; }
.footer .brand { font-size: 17px; }
.footer .brand-mark { width: 26px; height: 26px; }
.footer p { max-width: 480px; font-size: 11px; line-height: 1.8; color: var(--muted); }
.footer>a:last-child { font-size: 12px; white-space: nowrap; }
@keyframes line-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@media (min-width: 1600px) { .hero { min-height: 800px; } .hero-copy { padding-top: 163px; } }
@media (max-width: 900px) {
  .header, .footer { padding: 24px 28px; }
  .hero { min-height: 760px; }
  .hero-copy { padding: 90px 28px 280px; }
  .field-caption { bottom: 112px; left: 32%; right: 0; }
  .hero-description { max-width: 520px; }
  .hero-footnote { left: 28px; right: 28px; }
  .section { padding: 80px 28px; }
  .research, .approach-inner { gap: 48px; grid-template-columns: 1fr; }
  .section-heading>p:last-child, .approach-heading>p:last-child { max-width: 540px; }
  .footer { flex-wrap: wrap; }
  .footer p { order: 3; flex-basis: 100%; margin: 0; }
}
@media (max-width: 480px) {
  .header { padding: 20px; flex-wrap: wrap; gap: 22px; }
  .brand { font-size: 19px; }
  nav { gap: 23px; font-size: 12px; }
  .hero-copy { padding: 70px 22px 310px; }
  h1 { font-size: clamp(37px, 9vw, 46px); letter-spacing: -1.8px; }
  .hero-description { font-size: 14px; }
  .hero-eyebrow { font-size: 9px; letter-spacing: 1.5px; }
  .hero-actions { gap: 25px; flex-wrap: wrap; }
  .button { font-size: 12px; gap: 16px; }
  .hero-footnote { left: 22px; right: 22px; flex-direction: column; gap: 8px; }
  .question { gap: 18px; }
  .section { padding: 70px 22px; }
  .connect h2 br { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .title-line { animation: none; }
  .button, .button span { transition: none; }
  .button:hover span { transform: none; }
}