:root {
  color-scheme: light dark;
  --page: #f7f8fc;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #ffffff;
  --text: #111a2d;
  --muted: #526078;
  --line: rgba(17, 26, 45, 0.12);
  --blue: #0969da;
  --cyan: #00a9d6;
  --coral: #ef5f7a;
  --focus: #005fcc;
  --shadow: 0 20px 60px rgba(15, 35, 70, 0.10);
  --max: 72rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #050b18;
    --surface: rgba(12, 23, 43, 0.82);
    --surface-solid: #0c172b;
    --text: #f4f7ff;
    --muted: #adb9cf;
    --line: rgba(218, 228, 255, 0.16);
    --blue: #66aaff;
    --cyan: #45d7ef;
    --coral: #ff8a9e;
    --focus: #77b7ff;
    --shadow: 0 24px 72px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, color-mix(in srgb, var(--cyan) 13%, transparent), transparent 32rem),
    radial-gradient(circle at 95% 20%, color-mix(in srgb, var(--coral) 11%, transparent), transparent 28rem),
    var(--page);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 0.13em; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  border-radius: 0.25rem;
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.2rem;
}
img { display: block; max-width: 100%; }
.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: 1rem;
  transform: translateY(-180%);
  padding: 0.65rem 0.9rem;
  background: var(--surface-solid);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
}
.skip-link:focus { transform: none; }
.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--page) 86%, transparent);
  backdrop-filter: blur(18px);
}
.nav-shell {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  width: min(calc(100% - 2rem), var(--max));
  min-height: 4.7rem;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand img { width: 2.15rem; height: 2.15rem; border-radius: 0.7rem; }
.nav-links { display: flex; align-items: center; gap: 1.1rem; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 0.92rem; font-weight: 650; text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--text); }
.language { padding-left: 1rem; border-left: 1px solid var(--line); }
main { min-height: 70vh; }
.hero, .page-hero, .content, .footer-shell {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(15rem, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 6rem);
  min-height: 40rem;
  padding-block: 5rem;
}
.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.035em; }
h1 { max-width: 14ch; margin: 0; font-size: clamp(2.8rem, 5vw, 4.5rem); text-wrap: balance; }
.page-hero h1 { max-width: 18ch; font-size: clamp(2.35rem, 6vw, 4.7rem); }
h2 { margin: 3.5rem 0 1rem; font-size: clamp(1.55rem, 3vw, 2.35rem); }
h3 { margin: 0.5rem 0; font-size: 1.12rem; }
.lede { max-width: 39rem; margin: 1.5rem 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.28rem); }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface);
  font-size: 0.9rem;
  font-weight: 650;
}
.status-pill::before { width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--coral); content: ""; }
.app-icon-wrap { position: relative; width: min(100%, 24rem); margin: auto; }
.app-icon-wrap::before {
  position: absolute;
  inset: 12%;
  z-index: -1;
  border-radius: 38%;
  background: linear-gradient(135deg, var(--cyan), var(--coral));
  filter: blur(3.5rem);
  opacity: 0.42;
  content: "";
}
.app-icon { border-radius: 22%; box-shadow: var(--shadow); }
.content { padding-bottom: 6rem; }
.section-intro { max-width: 45rem; color: var(--muted); }
.feature-grid, .fact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 4rem;
}
.card {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: 0 12px 36px rgba(15, 35, 70, 0.05);
}
.card p { margin: 0.55rem 0 0; color: var(--muted); }
.card .number { color: var(--coral); font-size: 0.78rem; font-weight: 850; letter-spacing: 0.12em; }
.callout {
  margin: 3rem 0;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border: 1px solid color-mix(in srgb, var(--cyan) 40%, var(--line));
  border-radius: 1.4rem;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 10%, var(--surface)), color-mix(in srgb, var(--coral) 7%, var(--surface)));
}
.callout h2 { margin-top: 0; }
.page-hero { padding: 5.2rem 0 2.4rem; }
.content-narrow { max-width: 49rem; }
.content-narrow p, .content-narrow li { color: var(--muted); }
.content-narrow strong { color: var(--text); }
.meta { margin-top: 1rem; color: var(--muted); font-size: 0.92rem; }
.toc { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; margin: 1.5rem 0 2.5rem; padding: 1rem 0; border-block: 1px solid var(--line); }
.toc a { font-size: 0.9rem; font-weight: 650; }
.data-table { width: 100%; border-collapse: collapse; margin: 1.25rem 0 2rem; }
.data-table th, .data-table td { padding: 0.85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { color: var(--text); font-size: 0.88rem; }
.data-table td { color: var(--muted); }
.faq { margin: 1rem 0; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; color: var(--text); font-weight: 720; }
.faq p { margin: 0.8rem 0 0; }
.contact-box { margin-top: 3rem; padding: 1.6rem; border: 1px solid var(--line); border-radius: 1.2rem; background: var(--surface); }
.contact-box a { font-size: 1.08rem; font-weight: 750; }
.site-footer { border-top: 1px solid var(--line); background: color-mix(in srgb, var(--surface-solid) 54%, transparent); }
.footer-shell { display: grid; grid-template-columns: 1fr auto; gap: 2rem; padding-block: 2.5rem; }
.footer-shell p { margin: 0; color: var(--muted); font-size: 0.88rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.7rem 1rem; justify-content: flex-end; }
.footer-links a { color: var(--muted); font-size: 0.88rem; }
.not-found { display: grid; place-content: center; min-height: 65vh; text-align: center; }
.not-found h1 { max-width: none; font-size: clamp(4rem, 18vw, 10rem); color: var(--blue); }

@media (max-width: 52rem) {
  .nav-shell { flex-wrap: wrap; padding-block: 0.8rem; }
  .nav-links { order: 2; width: 100%; gap: 0.8rem 1rem; overflow-x: auto; padding-bottom: 0.2rem; }
  .language { margin-left: auto; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-block: 3.5rem; }
  .app-icon-wrap { width: min(66vw, 17rem); }
  .feature-grid, .fact-grid { grid-template-columns: 1fr; }
  .footer-shell { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 30rem) {
  .nav-links a { font-size: 0.84rem; }
  .language { padding-left: 0.7rem; }
  .data-table { display: block; overflow-x: auto; }
}

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

@media (forced-colors: active) {
  .card, .callout, .contact-box { border: 1px solid CanvasText; }
  .status-pill::before { background: Highlight; }
}