:root {
  color-scheme: light;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-500: #767676;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --surface: #ffffff;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --landing-measure: 42rem;
  --page-width: 72rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--gray-800);
  background: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  min-width: 0;
  margin: 0;
  padding-inline: max(0px, calc(env(safe-area-inset-left) - 1rem)) max(0px, calc(env(safe-area-inset-right) - 1rem));
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  font-size: 1rem;
  line-height: 1.6;
  background: #ffffff;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.18em;
  overflow-wrap: anywhere;
  touch-action: manipulation;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.shell {
  width: min(100% - 2rem, var(--page-width));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: max(0.5rem, calc(env(safe-area-inset-top) + 0.5rem));
  left: max(0.5rem, calc(env(safe-area-inset-left) + 0.5rem));
  z-index: 10;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  color: #ffffff;
  background: var(--gray-900);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--gray-200);
  background: #ffffff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
}

.brand {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--gray-900);
  font-weight: 700;
  text-decoration: none;
}

.brand-icon,
.download-icon {
  display: block;
  flex: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem 1rem;
}

nav a {
  min-width: 1.5rem;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--gray-700);
}

nav a[aria-current="page"] {
  color: var(--gray-900);
  font-weight: 600;
}

nav a:hover,
.brand:hover,
.utility-page > p > a:not(.button):hover,
.legal-page li > a:hover {
  color: var(--gray-900);
}

main {
  min-height: 60dvh;
  padding-block: 4rem 5rem;
}

.prose {
  max-width: 70ch;
  margin-inline: auto;
}

.prose > :first-child {
  margin-top: 0;
}

.landing {
  width: 100%;
}

.landing-region {
  min-width: 0;
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1rem, 4vw, 3.5rem);
}

.landing-region > p,
.landing-region > h2,
.landing-founder > h3,
.landing-founder > p,
.landing-judgment > p,
.landing-close > p,
.landing-close > h2,
.landing-close section > p,
.landing-close section > h2 {
  max-width: var(--landing-measure);
  margin-inline: 0;
}

.landing-hero {
  padding-top: 0;
}

.landing-hero,
.landing-founder,
.landing-differences,
.landing-close {
  background: var(--surface);
}

.landing-hero-copy,
.evidence-copy {
  min-width: 0;
  max-width: var(--landing-measure);
}

.landing-hero h1 {
  max-width: 13ch;
}

.landing-overload {
  background: var(--gray-50);
}

.landing-founder h3 {
  margin-top: 3rem;
  padding-left: 1rem;
  border-left: 3px solid var(--gray-200);
}

.landing-differences > h2 {
  max-width: var(--landing-measure);
  margin: 0 0 2.5rem;
}

.evidence-band {
  display: grid;
  gap: 2rem;
  align-items: start;
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--gray-200);
}

.evidence-band h3 {
  margin-top: 0;
}

.product-evidence {
  min-width: 0;
  margin: 0;
}

.product-evidence img {
  display: block;
  width: 100%;
  max-width: 33.75rem;
  height: auto;
  margin-inline: auto;
}

.product-evidence figcaption {
  width: 100%;
  max-width: 33.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.25rem 0.75rem;
  margin: 0.625rem auto 0;
  color: var(--gray-600);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.product-evidence figcaption a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--gray-600);
  font-size: 0.75rem;
  font-weight: 500;
}

.product-evidence figcaption span {
  color: var(--gray-500);
  font-size: 0.75rem;
  font-weight: 400;
}

.landing-judgment {
  background: var(--gray-100);
}

.landing-close {
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.landing-close h2 {
  margin-top: 3rem;
}

.landing-close > h2:first-child {
  margin-top: 0;
}

.download-heading {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.download-heading h1 {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--gray-900);
  line-height: 1.2;
  text-wrap: balance;
}

h1 {
  margin: 0.5rem 0 1.5rem;
  font-size: clamp(2.25rem, 6vw, 4rem);
  letter-spacing: -0.035em;
}

h2 {
  margin: 4rem 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.25rem;
}

p,
ul,
dl {
  margin-block: 0 1.5rem;
}

.eyebrow {
  margin-bottom: 0.5rem;
  color: var(--gray-600);
  font-size: 0.875rem;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.eyebrow em {
  font-style: normal;
}

.audience {
  margin-bottom: 0.75rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-block: 2rem 1.5rem;
}

.hero-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(9rem, auto);
  gap: 1.5rem;
  align-items: start;
  margin-block: 1.5rem 0;
}

.hero-action-group {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.action-support,
.hero-actions #purchase-status {
  margin: 0;
  color: var(--gray-600);
  font-size: 0.875rem;
  line-height: 1.5;
}

.hero-actions #purchase-status {
  flex-basis: auto;
}

.button,
button[aria-disabled="true"] {
  min-width: 1.5rem;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  padding: 0.625rem 1.25rem;
  font: inherit;
  font-weight: 600;
}

.button-primary {
  border: 1px solid var(--accent);
  color: #ffffff;
  background: var(--accent);
  text-decoration: none;
}

.button-primary:hover {
  border-color: var(--accent-dark);
  color: #ffffff;
  background: var(--accent-dark);
}

.button-primary:active {
  color: #ffffff;
  background: #1e40af;
}

button[aria-disabled="true"] {
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  background: var(--gray-100);
  cursor: not-allowed;
  font-weight: 400;
}

#purchase-status {
  flex-basis: 100%;
  color: var(--gray-600);
  font-size: 0.875rem;
}

.download-url,
code {
  overflow-wrap: anywhere;
}

.utility-page > p > a,
.legal-page li > a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.release-facts {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  background: var(--gray-50);
}

.release-facts div {
  min-width: 0;
}

.release-facts dt {
  color: var(--gray-600);
  font-size: 0.875rem;
  font-weight: 600;
}

.release-facts dd {
  margin: 0.25rem 0 0;
}

.release-list {
  margin-block: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.release-list h2 {
  margin-top: 0;
}

.legal-page ul {
  padding-left: 1.5rem;
}

.site-footer {
  border-top: 1px solid var(--gray-200);
  padding-block: 2rem;
  color: var(--gray-600);
  font-size: 0.875rem;
}

.related-product {
  margin: 0;
  padding-inline: clamp(1rem, 4vw, 3.5rem);
  color: var(--gray-600);
  font-size: 0.875rem;
}

@media (max-width: 40rem) {
  .shell {
    width: min(100% - 1.5rem, var(--page-width));
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  nav {
    justify-content: flex-start;
    width: 100%;
    gap: 0.5rem 0.75rem;
  }

  nav a,
  .brand,
  .button,
  button[aria-disabled="true"] {
    min-height: 2.75rem;
  }

  main {
    padding-block: 3rem 4rem;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-action-group {
    width: 100%;
  }

  .landing-region {
    padding-inline: 1rem;
  }

  .product-evidence img {
    height: 18rem;
    object-fit: cover;
    object-position: left top;
  }

  .button,
  button[aria-disabled="true"] {
    width: 100%;
  }
}

@media (min-width: 64rem) {
  .evidence-band:not(.evidence-band-text-only) {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(22rem, 1fr);
  }

  .landing-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.38fr) minmax(22rem, 1fr);
    gap: clamp(2rem, 3vw, 3.5rem);
    align-items: start;
  }

  .landing-hero h1 {
    max-width: none;
    font-size: clamp(2.75rem, 4vw, 3.25rem);
  }

  .landing-hero .product-evidence img {
    aspect-ratio: 1.35 / 1;
    object-fit: cover;
    object-position: left top;
  }

  .evidence-band:not(.evidence-band-text-only) {
    gap: clamp(2rem, 3vw, 3.5rem);
  }

}