:root {
  --public-header-height: 69px;
  --public-primary: #101722;
  --public-primary-hover: #17243a;
  --public-focus: #00b4ff;
  --public-ink: #17171f;
  --public-muted: #596579;
  --public-line: rgba(37, 99, 235, 0.14);
}

html {
  scroll-padding-top: calc(var(--public-header-height) + 1.5rem);
}

.site-nav {
  width: min(calc(100% - 48px), 1260px);
  min-height: var(--public-header-height);
  padding-block: 0.5rem;
}

.site-nav::before {
  background: rgba(245, 249, 255, 0.9);
  border-bottom-color: rgba(37, 99, 235, 0.1);
  box-shadow: 0 10px 28px rgba(31, 67, 112, 0.07);
}

.site-nav .brand-logo {
  width: 88px;
}

.nav-links {
  gap: 0.08rem;
  border-color: rgba(37, 99, 235, 0.12);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 30px rgba(31, 67, 112, 0.08);
}

.nav-links a,
.nav-login,
.button,
.compare-page .compare-cta {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
}

.nav-links a {
  padding-inline: 0.9rem;
}

.nav-login {
  min-height: 40px;
  padding-inline: 0.75rem;
  border: 0;
  border-radius: 999px;
  color: var(--public-ink);
  background: transparent;
}

.nav-login:hover {
  color: var(--public-ink);
  background: rgba(255, 255, 255, 0.72);
}

.button.primary,
.compare-page .compare-cta {
  border: 1px solid var(--public-primary);
  border-radius: 999px;
  color: #ffffff;
  background: var(--public-primary);
  box-shadow: 0 12px 28px rgba(9, 17, 31, 0.2);
}

.button.primary:hover,
.compare-page .compare-cta:hover {
  color: #ffffff;
  border-color: rgba(0, 180, 255, 0.58);
  background: var(--public-primary-hover);
  box-shadow: 0 16px 34px rgba(9, 17, 31, 0.24);
  transform: translateY(-1px);
}

.button:focus-visible,
.nav-login:focus-visible,
.nav-links a:focus-visible,
.compare-page .compare-cta:focus-visible {
  outline-color: color-mix(in srgb, var(--public-focus) 48%, transparent);
}

.button.secondary {
  border-color: rgba(37, 99, 235, 0.14);
  background: rgba(255, 255, 255, 0.78);
}

.button.secondary:hover {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.12);
}

.hero-shell .hero-copy h1,
.about-intro h1,
.compare-page .compare-hero h1 {
  color: var(--public-ink);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.03em;
}

.hero-shell .hero-copy h1 {
  font-size: clamp(3rem, 4.2vw, 4rem);
}

.about-intro h1 {
  font-size: clamp(2.75rem, 4vw, 3.4rem);
}

.compare-page .compare-hero h1 {
  font-size: clamp(2.75rem, 4vw, 3.4rem);
}

.hero-shell .hero-copy p,
.about-intro p,
.compare-page .compare-hero p {
  color: var(--public-muted);
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 1.6;
}

.scroll-story {
  grid-template-columns: minmax(320px, 0.62fr) minmax(0, 1.38fr);
  scroll-margin-top: calc(var(--public-header-height) + 1.5rem);
}

.story-copy {
  top: calc(var(--public-header-height) + 1.5rem);
}

.story-copy h2 {
  max-width: 10ch;
  font-size: clamp(2.6rem, 3.75vw, 3.35rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
}

.story-copy p {
  max-width: 31ch;
  font-size: clamp(1rem, 1.2vw, 1.08rem);
  line-height: 1.62;
}

.section-header h2,
.about-section-head h2,
.compare-page .compare-differences > h2,
.compare-page .compare-benefits > h2,
.compare-page .compare-faq > h2 {
  letter-spacing: -0.025em;
}

.signal-section,
.assistant-section,
.stack-section,
.faq-section,
.privacy-section,
.ready-section,
.about-intro {
  scroll-margin-top: calc(var(--public-header-height) + 1.5rem);
}

.about-page {
  background: #f5f9ff;
}

.compare-page .compare-cta {
  min-height: 48px;
  padding-inline: 1.25rem;
}

@media (max-width: 900px) {
  .story-copy {
    top: auto;
  }
}

@media (max-width: 680px) {
  :root {
    --public-header-height: 64px;
  }

  .site-nav {
    width: calc(100% - 24px);
    min-height: var(--public-header-height);
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.55rem;
    padding-block: 0.45rem;
  }

  .site-nav .brand-logo {
    width: 78px;
  }

  .nav-links a {
    padding-inline: 0.62rem;
    font-size: 0.76rem;
  }

  .site-nav .nav-links {
    order: initial;
    grid-column: auto;
    justify-self: end;
    width: auto;
    max-width: 100%;
    padding: 0.2rem;
    overflow: visible;
  }

  .hero,
  .signal-section,
  .analytics-showcase,
  .scroll-story,
  .more-section,
  .stack-section,
  .faq-section,
  .privacy-section,
  .ready-section {
    width: auto;
    max-width: none;
    margin-inline: 12px;
  }

  .about-intro,
  .about-story-card,
  .about-beliefs,
  .about-action-grid {
    width: auto;
    max-width: none;
    margin-inline: 18px;
  }

  .site-nav .nav-links a[href*="how-it-works"] {
    display: none;
  }

  .hero-shell .hero-copy h1,
  .about-intro h1,
  .compare-page .compare-hero h1 {
    letter-spacing: -0.022em;
  }

  .hero-shell .hero-copy h1 {
    font-size: clamp(2rem, 9vw, 2.55rem);
  }

  .about-intro h1,
  .compare-page .compare-hero h1 {
    font-size: clamp(2.15rem, 10vw, 2.65rem);
  }

  .about-intro h1 {
    width: 100%;
    max-width: 100%;
  }

  .scroll-story {
    grid-template-columns: 1fr;
  }

  .story-copy h2 {
    max-width: 12ch;
    font-size: clamp(2.2rem, 9.5vw, 2.7rem);
  }
}