:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #050706;
  color: #f5f5f2;
  --background: #050706;
  --surface: #0d100f;
  --surface-raised: #141816;
  --border: #292e2b;
  --text: #f5f5f2;
  --muted: #a5aaa7;
  --subtle: #727874;
  --accent: #7ce3b1;
  --accent-strong: #a3f0ca;
  --accent-ink: #06130d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 80% -10%, rgba(50, 126, 91, 0.2), transparent 34rem),
    radial-gradient(circle at -10% 34rem, rgba(26, 83, 59, 0.12), transparent 30rem),
    var(--background);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
}

::selection {
  background: rgba(124, 227, 177, 0.28);
  color: #fff;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 10;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.shell {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  padding: 26px 0 0;
  border-bottom: 1px solid rgba(41, 46, 43, 0.72);
  background: rgba(5, 7, 6, 0.74);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  min-width: 0;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: #fff;
  font-size: 0.84rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-decoration: none;
}

.language-nav {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.language-nav a {
  color: var(--subtle);
  font-size: 0.78rem;
  text-decoration: none;
}

.language-nav a:hover,
.language-nav a:focus-visible,
.language-nav a[aria-current="page"] {
  color: #fff;
  text-decoration: underline;
}

.section-nav {
  display: flex;
  gap: 26px;
  margin-top: 22px;
}

.section-nav a {
  position: relative;
  padding: 0 0 14px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 620;
  text-decoration: none;
}

.section-nav a:hover,
.section-nav a:focus-visible,
.section-nav a[aria-current="page"] { color: #fff; }

.section-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  border-radius: 999px 999px 0 0;
  background: var(--accent);
  content: "";
}

main { padding: 64px 0 76px; }

.document { padding: 0; }

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: #fff;
  font-weight: 650;
  line-height: 1.16;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(2.55rem, 8vw, 4.25rem);
  letter-spacing: -0.05em;
  overflow-wrap: anywhere;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  letter-spacing: -0.01em;
}

h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

p { margin: 0; }

.lede {
  max-width: 690px;
  color: #bdc2bf;
  font-size: clamp(1.02rem, 2vw, 1.18rem);
}

.notice {
  margin: 28px 0 0;
  color: var(--subtle);
  font-size: 0.88rem;
}

.document section {
  padding: 30px 0;
  border-top: 1px solid var(--border);
}

.document section:first-of-type { margin-top: 32px; }

.document section p { color: #c7ccc9; }

footer {
  padding: 0 0 40px;
  color: var(--subtle);
  font-size: 0.78rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 20px;
}

@media (max-width: 560px) {
  .shell { width: min(820px, calc(100% - 32px)); }
  header { padding-top: 20px; }
  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .language-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 7px 12px;
  }
  .section-nav { margin-top: 18px; }
  main { padding-top: 44px; }
  .document section { padding: 26px 0; }
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

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