:root {
  --paper: #2b1e36;
  --ink: #f0e7f5;
  --muted: #c0afcd;
  --line: #594666;
  --accent: #e8ef78;
  --panel: #d8c1e9;
  --panel-ink: #3c254b;
  --panel-muted: #5b4269;
  --display: "Barlow Condensed", "Arial Narrow", Impact, sans-serif;
  --sans: "Chivo", Arial, sans-serif;
  --mono: "Chivo Mono", monospace;
  --size-hero: clamp(72px, 8.4vw, 132px);
  --size-subheader: 28px;
  --size-body: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--size-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: var(--paper); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}
.page-shell { max-width: 1600px; margin: 0 auto; padding: 0 6.25%; }
.site-header {
  height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark, h2 {
  font-family: var(--display);
  font-size: var(--size-subheader);
  font-weight: 600;
  line-height: 1.1;
}
.wordmark { display: inline-flex; align-items: center; gap: 10px; }
.wordmark-period { color: var(--accent); margin-left: -10px; }
.brand-mark { height: 28px; width: 28px; margin-right: 2px; color: var(--accent); }
.nav-cta { display: inline-block; border: 1px solid var(--line); padding: 10px 14px; }
.nav-cta:hover { background: #3d2b4b; border-color: var(--accent); }
.nav-cta span { margin-left: 12px; }
.hero {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 6%;
  align-items: center;
  padding: 64px 0 72px;
}
h1 {
  font-family: var(--display);
  font-size: var(--size-hero);
  line-height: .86;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -1.8px;
  margin: 0 0 28px;
}
h1 em { color: var(--accent); font-style: normal; }
.hero-description { max-width: 360px; color: var(--muted); margin: 0; }
.signup { margin-top: 30px; max-width: 480px; scroll-margin-top: 70px; }
.form-row {
  display: flex;
  background: #35253f;
  padding: 5px;
  border: 1px solid var(--line);
}
.form-row:focus-within { border-color: var(--ink); }
.form-row input {
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  border: 0;
  background: transparent;
  color: var(--ink);
  outline-offset: -1px;
}
.form-row input::placeholder { color: var(--muted); opacity: 1; }
.form-row button {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--paper);
  padding: 12px;
  font-weight: 500;
  cursor: pointer;
}
.form-row button:hover { background: #f5ffa1; }
.form-row button:active { transform: translateY(1px); }
.form-row button:disabled { cursor: wait; opacity: .65; }
.form-note { color: var(--muted); margin: 12px 0 0; }
.form-status { margin: 0; color: var(--accent); }
.form-status:not(:empty) { margin-top: 12px; }
.honey-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.learning-figure {
  margin: 0;
  padding: 12px;
  background: var(--panel);
  box-shadow: 9px 9px 0 #1e1427;
}
.learning-map { display: block; width: 100%; height: auto; }
.map-grid { opacity: .45; fill: var(--panel-muted); }
.learning-map > g[stroke], .learning-map marker path { stroke: var(--panel-muted); }
.learning-map > circle { fill: var(--panel); stroke: var(--panel-ink); }
.learning-map .click-node path:first-child { fill: var(--accent); }
.learning-map .click-node path:last-child { stroke: var(--panel-ink); }
.learning-map > g:last-child { stroke: var(--panel-ink); }
.approach {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 32px 0 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
h2 { text-transform: uppercase; margin: 0 0 12px; }
.method p { color: var(--muted); margin: 0; max-width: 300px; }
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 88px;
  color: var(--muted);
}
.site-footer p { margin: 0; }
.footer-note { font-family: var(--mono); }
.research-link:hover { color: var(--accent); }
.research-link span { margin-left: 6px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  padding: 12px 18px;
  background: var(--accent);
  color: var(--paper);
  z-index: 10;
}
.skip-link:focus { top: 16px; }

@media (min-width: 1600px) {
  .page-shell { padding: 0 100px; }
}
@media (max-width: 1050px) {
  .page-shell { padding: 0 5%; }
  .hero { gap: 4%; }
  .form-row { flex-direction: column; gap: 5px; }
  .form-row button { justify-content: space-between; }
  .approach { gap: 28px; }
}
@media (max-width: 760px) {
  .page-shell { padding: 0 7%; }
  .site-header { height: 88px; }
  .nav-cta { padding: 8px 10px; }
  .nav-cta span { margin-left: 6px; }
  .hero { grid-template-columns: 1fr; padding: 44px 0; gap: 36px; }
  .hero-copy { max-width: 520px; width: 100%; margin: auto; }
  h1 { letter-spacing: -.8px; }
  .learning-figure { width: min(100%, 430px); margin: 0 auto; }
  .approach { grid-template-columns: 1fr; gap: 28px; }
  .method p { max-width: 460px; }
  .site-footer { flex-wrap: wrap; padding: 24px 0; gap: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}