@font-face {
  font-family: Geist;
  src: url('/fonts/geist-400.woff2') format('woff2');
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: Geist;
  src: url('/fonts/geist-600.woff2') format('woff2');
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

:root {
  color-scheme: dark light;
  --bg: light-dark(#f5f7f9, #090c11);
  --surface-1: light-dark(#ffffff, #11141a);
  --surface-2: light-dark(#f2f3f7, #181c22);
  --line: light-dark(#808693, #747b87);
  --line-soft: light-dark(#dbdee3, #2a2e36);
  --ink: light-dark(#131822, #eceef3);
  --ink-2: light-dark(#3f4550, #bdc1c9);
  --ink-3: light-dark(#5a616c, #9ca2ab);
  --accent: #eeb154;
  --accent-ink: light-dark(#8b5500, #f2b966);
  --success: light-dark(#007653, #56d1a3);
  --aurora-1: light-dark(#9ce1d7, #008479);
  --aurora-2: light-dark(#b2c2f9, #3a4aa7);
  --aurora-3: light-dark(#d8c7f9, #6e3ead);
  --danger: light-dark(#ba2b2e, #f97770);
  --page: min(72rem, calc(100% - 2rem));
  font-family: Geist, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 280px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(
      circle at 14% 2%,
      color-mix(in srgb, var(--aurora-1) 18%, transparent),
      transparent 24rem
    ),
    radial-gradient(
      circle at 86% 18%,
      color-mix(in srgb, var(--aurora-2) 14%, transparent),
      transparent 28rem
    ),
    var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--accent-ink);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.13em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent-ink);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  inset: 0.75rem auto auto 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.625rem;
  transform: translateY(-160%);
  background: var(--accent);
  color: #281601;
  font-weight: 600;
}

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

.site-header,
.site-footer,
.page-main,
.landing-main {
  width: var(--page);
  margin-inline: auto;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
}

.brand img {
  width: 2rem;
  height: 2rem;
}

.header-nav,
.footer-nav,
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.header-nav a,
.footer-nav a {
  color: var(--ink-2);
  font-size: 0.875rem;
  font-weight: 600;
}

.button,
.header-cta {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-1);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

.button-primary,
.header-cta {
  border-color: var(--accent);
  background: var(--accent);
  color: #281601;
}

.landing-main {
  padding-block: clamp(2rem, 6vw, 5.5rem) 4rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.92fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  min-height: min(44rem, calc(100vh - 7rem));
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--accent-ink);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.18;
  text-wrap: balance;
}

h1 {
  margin: 0;
  font-size: clamp(2.65rem, 9vw, 6.8rem);
  letter-spacing: -0.055em;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3.3rem);
  letter-spacing: -0.035em;
}

h3 {
  margin: 0;
  font-size: 1.1rem;
}

p,
li,
dd {
  color: var(--ink-2);
}

.lede {
  max-width: 64ch;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-visual {
  position: relative;
  min-height: 29rem;
}

.screenshot {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--surface-1);
  box-shadow: 0 1.5rem 4rem rgb(0 0 0 / 24%);
}

.screenshot img {
  display: block;
  width: 100%;
  height: auto;
}

.screenshot-wide {
  position: absolute;
  inset: 1rem 0 auto 0;
}

.screenshot-phone {
  position: absolute;
  z-index: 1;
  width: 38%;
  inset: auto 5% 0 auto;
}

.section {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(18rem, 1fr);
  gap: 1.5rem 4rem;
  margin-bottom: 2rem;
}

.section-intro p {
  margin-top: 0.4rem;
}

.feature-grid,
.privacy-grid,
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card,
.notice,
.legal-review,
.credits-list > div {
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: 1px solid var(--line-soft);
  border-radius: 1rem;
  background: color-mix(in srgb, var(--surface-1) 92%, transparent);
}

.card p {
  margin-bottom: 0;
}

.feature-number {
  display: block;
  margin-bottom: 1rem;
  color: var(--success);
  font:
    600 0.75rem/1 Geist,
    system-ui,
    sans-serif;
  letter-spacing: 0.1em;
}

.privacy-band,
.cta-band {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 6vw, 4rem);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--aurora-1) 18%, transparent), transparent 45%),
    var(--surface-1);
}

.cta-band {
  text-align: center;
}

.cta-band .button-row {
  justify-content: center;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
  max-width: 52rem;
  margin-inline: auto;
}

details {
  border: 1px solid var(--line-soft);
  border-radius: 0.875rem;
  background: var(--surface-1);
}

summary {
  padding: 1rem 1.15rem;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}

details p {
  margin: 0;
  padding: 0 1.15rem 1.15rem;
}

.page-main {
  display: grid;
  grid-template-columns: minmax(11rem, 15rem) minmax(0, 46rem);
  justify-content: center;
  gap: clamp(2rem, 7vw, 6rem);
  padding-block: clamp(2rem, 6vw, 4.5rem);
}

.page-heading {
  grid-column: 1 / -1;
  max-width: 46rem;
  margin-left: min(21rem, 24%);
}

.page-heading h1,
.error-page h1 {
  font-size: clamp(2.4rem, 7vw, 4.8rem);
}

.toc {
  position: sticky;
  top: 1rem;
  align-self: start;
  padding: 1rem;
  border-left: 1px solid var(--line);
}

.toc strong {
  display: block;
  margin-bottom: 0.5rem;
}

.toc a {
  display: block;
  padding-block: 0.3rem;
  color: var(--ink-2);
  font-size: 0.875rem;
}

.prose {
  min-width: 0;
}

.prose h2 {
  margin-block: 3rem 0.8rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  letter-spacing: -0.02em;
  scroll-margin-top: 2rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose code {
  overflow-wrap: anywhere;
}

.legal-review {
  border-color: var(--accent-ink);
}

.legal-review strong {
  color: var(--ink);
}

.credits-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
}

.credits-list dt {
  color: var(--ink);
  font-weight: 600;
}

.credits-list dd {
  margin: 0.25rem 0 0;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.5rem 2rem;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-3);
  font-size: 0.875rem;
}

.error-page {
  max-width: 48rem;
  min-height: calc(100vh - 12rem);
  padding-block: clamp(4rem, 15vw, 10rem);
}

@media (max-width: 760px) {
  .header-nav a:not(.header-cta) {
    display: none;
  }

  .hero,
  .section-intro,
  .page-main {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: clamp(18rem, 78vw, 29rem);
  }

  .feature-grid,
  .privacy-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .page-heading,
  .page-main > * {
    grid-column: 1;
    margin-left: 0;
  }

  .toc {
    position: static;
    border: 1px solid var(--line-soft);
    border-radius: 0.875rem;
  }

  .toc a {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
  }

  .site-footer {
    display: grid;
  }
}

@media (max-width: 359px) {
  :root {
    --page: calc(100% - 1.25rem);
  }

  .site-header {
    gap: 0.5rem;
  }

  .header-cta {
    min-height: 2.5rem;
    padding-inline: 0.75rem;
    font-size: 0.8125rem;
  }

  .hero-visual {
    min-height: 16rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media (forced-colors: active) {
  .button,
  .header-cta,
  .card,
  .notice,
  .legal-review,
  details,
  .screenshot {
    border-color: ButtonText;
  }
}