:root {
  color-scheme: dark;
  --background: #05070c;
  --panel: #0c111b;
  --panel-strong: #111927;
  --line: rgba(148, 163, 184, 0.2);
  --text: #f4f7fb;
  --muted: #9aa7ba;
  --cyan: #00d4ff;
  --green: #26d98a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(0, 212, 255, 0.1), transparent 34rem),
    var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 8px 12px;
  color: #001116;
  background: var(--cyan);
  transform: translateY(-160%);
}

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

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.brand span {
  color: var(--cyan);
}

nav,
.actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

nav a:not(.button) {
  color: var(--muted);
  font-size: 14px;
}

.hero {
  padding: 92px 0 70px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 920px;
  margin-bottom: 24px;
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.6rem, 4vw, 2.75rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.lede {
  max-width: 760px;
  margin-bottom: 30px;
  color: #c6d0df;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid rgba(0, 212, 255, 0.5);
  border-radius: 8px;
  color: #001116;
  background: var(--cyan);
  font-weight: 850;
}

.button-small {
  min-height: 38px;
  padding-inline: 14px;
  font-size: 13px;
}

.text-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.boundary-note {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 72px;
}

.facts article,
.risk {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
}

.facts article {
  min-width: 0;
  padding: 24px;
}

.facts span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.facts strong {
  display: block;
  margin-bottom: 8px;
  font-size: 19px;
}

.facts p,
.content,
.risk p {
  color: var(--muted);
}

.facts p {
  margin-bottom: 0;
  font-size: 14px;
}

.section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 7vw, 92px);
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.content p,
.content li {
  max-width: 700px;
}

.content ul,
.content ol {
  padding-left: 22px;
}

.content li + li {
  margin-top: 10px;
}

.risk {
  margin: 60px 0 80px;
  padding: clamp(28px, 6vw, 58px);
}

.risk p {
  max-width: 760px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

footer a {
  color: var(--cyan);
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    padding-block: 20px;
  }

  nav a:not(.button) {
    display: none;
  }

  .hero {
    padding: 64px 0 48px;
  }

  .facts,
  .section {
    grid-template-columns: 1fr;
  }

  .facts {
    margin-bottom: 42px;
  }

  .section {
    gap: 12px;
    padding: 48px 0;
  }
}

@media (max-width: 420px) {
  .site-header,
  main,
  footer {
    width: min(100% - 24px, 1120px);
  }

  .site-header {
    gap: 12px;
  }

  .brand {
    font-size: 17px;
  }

  .button-small {
    min-height: 44px;
    padding-inline: 12px;
  }

  h1 {
    font-size: 2.55rem;
  }

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

  .actions .button {
    width: 100%;
  }
}