:root {
  --bg: #f8f7f2;
  --surface: #ffffff;
  --ink: #161614;
  --muted: #76746c;
  --faint: #9d9b92;
  --line: #e6e4dc;
  --line-strong: #d8d6cc;
  --signal: #2b5fe3;
  --signal-soft: #eef2fe;
  --warn: #9a5b00;
  --warn-soft: #fbf3e2;
  --sans: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--signal); text-underline-offset: 0.2em; }
a:focus-visible {
  outline: 3px solid #8eabff;
  outline-offset: 3px;
}
.visually-hidden {
  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: 16px;
  top: 12px;
  z-index: 100;
  padding: 9px 13px;
  color: #fff;
  background: var(--ink);
  border-radius: 7px;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.landing-shell,
.site-nav {
  width: min(100% - 48px, 760px);
  margin-inline: auto;
}

.site-header { padding-top: 28px; }
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0;
}
.brand {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}
.nav-links { display: flex; align-items: center; gap: 18px; }
.nav-links a {
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
}
.nav-links a:hover { color: var(--ink); }
.nav-links .nav-action {
  padding: 8px 12px;
  background: var(--signal);
  border: 1px solid var(--signal);
  border-radius: 7px;
  color: #fff;
}
.nav-links .nav-action:hover { background: #1f4fd0; border-color: #1f4fd0; color: #fff; }

.landing-hero { padding: 72px 0 56px; }
.hero-grid { display: grid; gap: 34px; }
.hero-kicker,
.section-kicker,
.card-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero-kicker { margin: 0 0 14px; color: var(--faint); }
.hero-title {
  max-width: 700px;
  margin: 0 0 14px;
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
}
.hero-title em { color: inherit; font-style: normal; }
.hero-lede {
  max-width: 67ch;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  transition: background 0.12s, border-color 0.12s, transform 0.04s;
}
.button:hover { border-color: var(--ink); }
.button:active { transform: translateY(1px); }
.button-primary,
.hero-actions .button-primary,
.action-button {
  background: var(--signal);
  border-color: var(--signal);
  color: #fff;
}
.button-primary:hover,
.hero-actions .button-primary:hover,
.action-button:hover {
  background: #1f4fd0;
  border-color: #1f4fd0;
  color: #fff;
}
.hero-actions .button-ghost { background: transparent; color: var(--ink); }
.hero-note { margin: 13px 0 0; color: var(--faint); font-size: 12px; }

.decision-card {
  padding: 18px;
  background: var(--warn-soft);
  border: 1px solid #f0dcb0;
  border-radius: 9px;
}
.decision-card .card-kicker { margin: 0 0 8px; color: var(--warn); }
.decision-card dl { margin: 0; }
.decision-card dl > div {
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid #ead8ae;
}
.decision-card dt { color: var(--warn); font-size: 17px; font-weight: 600; }
.decision-card dd { margin: 0; color: #6b4a12; font-size: 13px; }
.decision-card a { display: inline-block; margin-top: 13px; font-size: 12px; }

.awareness-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 16px;
}
.section-head { margin-bottom: 26px; }
.section-kicker { margin: 0 0 10px; color: var(--signal); }
.section-title {
  max-width: 680px;
  margin: 0;
  font-size: 27px;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.section-intro { max-width: 67ch; margin: 12px 0 0; color: var(--muted); }

.fact-grid { display: grid; gap: 10px; }
.fact-card {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
}
.fact-card .card-kicker { margin: 0 0 9px; color: var(--faint); }
.fact-card h3,
.research-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.fact-card p,
.research-card p { margin: 0; color: var(--muted); font-size: 13.5px; }
.source-line { margin: 18px 0 0; color: var(--faint); font-size: 12px; }

.research-section { background: transparent; }
.research-grid { border-top: 1px solid var(--line-strong); }
.research-card { padding: 20px 0; border-bottom: 1px solid var(--line); }
.research-card .card-kicker { margin: 0 0 9px; color: var(--faint); }
.research-card a { display: inline-block; margin-top: 10px; font-size: 12px; }

.question-list { margin: 0; padding: 0; list-style: none; counter-reset: questions; }
.question-list li {
  counter-increment: questions;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.5;
}
.question-list li::before {
  content: "0" counter(questions);
  padding-top: 2px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.bottom-line { padding: 0 0 56px; }
.bottom-line .landing-shell {
  padding: 22px;
  background: var(--signal-soft);
  border: 1px solid #d4ddfb;
  border-radius: 9px;
}
.bottom-line blockquote {
  max-width: 680px;
  margin: 0;
  color: #234fb8;
  font-size: 23px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.015em;
}
.bottom-line p { max-width: 67ch; margin: 12px 0 0; color: #405eaa; font-size: 13.5px; }

.action-bridge { padding: 56px 0; background: var(--surface); border-top: 1px solid var(--line); }
.action-bridge-inner { display: grid; gap: 22px; }
.action-bridge h2 {
  margin: 0;
  font-size: 27px;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.action-bridge p { max-width: 67ch; margin: 12px 0 0; color: var(--muted); }
.action-button { width: fit-content; }
.action-privacy { max-width: 64ch !important; margin-top: 10px !important; color: var(--faint) !important; font-size: 12px !important; }

.site-footer { padding: 28px 0 36px; border-top: 1px solid var(--line); }
.footer-inner { display: grid; gap: 8px; color: var(--faint); font-size: 11px; }
.footer-inner p { max-width: 64ch; margin: 0; }
.prose-page { padding: 64px 0 80px; }
.prose-page h1 {
  max-width: 680px;
  margin: 0 0 14px;
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
}
.prose-page .lede { max-width: 66ch; margin: 0 0 36px; color: var(--muted); font-size: 16px; }
.prose-section { max-width: 66ch; padding: 24px 0; border-top: 1px solid var(--line); }
.prose-section h2 { margin: 0 0 10px; font-size: 20px; line-height: 1.3; }
.prose-section p { margin: 0 0 12px; color: var(--muted); }
.prose-section p:last-child { margin-bottom: 0; }

@media (max-width: 620px) {
  .landing-shell,
  .site-nav { width: min(100% - 36px, 760px); }
  .site-header { padding-top: 20px; }
  .nav-links { gap: 10px; }
  .nav-links a:not(.nav-action) { display: none; }
  .landing-hero { padding: 48px 0 44px; }
  .prose-page { padding: 48px 0 64px; }
  .prose-page h1 { font-size: 30px; }
  .hero-title { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .decision-card dl > div { grid-template-columns: 78px 1fr; gap: 12px; }
  .awareness-section,
  .action-bridge { padding: 44px 0; }
  .section-title,
  .action-bridge h2 { font-size: 24px; }
  .bottom-line { padding-bottom: 44px; }
  .bottom-line .landing-shell { padding: 18px; }
  .bottom-line blockquote { font-size: 20px; }
  .action-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}