:root {
  --bg: #090916;
  --panel: #121225;
  --panel-2: #191933;
  --text: #f7f7ff;
  --muted: #b7b8d6;
  --line: rgba(255, 255, 255, 0.12);
  --brand: #8b5cf6;
  --brand-2: #22d3ee;
  --good: #34d399;
  --warn: #fbbf24;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(139, 92, 246, 0.35), transparent 32rem),
    radial-gradient(circle at 70% 10%, rgba(34, 211, 238, 0.18), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--brand);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(9, 9, 22, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-wrap,
.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 14px 40px rgba(139, 92, 246, 0.35);
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  font-size: 0.92rem;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
}

.hero {
  padding: 5.5rem 0 2.5rem;
}

.eyebrow {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  margin: 0 0 1rem;
  color: var(--brand-2);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 880px;
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 8vw, 5.7rem);
}

h2 {
  margin-top: 0;
  font-size: clamp(1.7rem, 4vw, 2.65rem);
}

h3 {
  font-size: 1.3rem;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.16rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  color: #090916;
  background: linear-gradient(135deg, var(--brand-2), #a7f3d0);
  border: 0;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.07);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.content-panel,
.stat {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  box-shadow: var(--shadow);
}

.card {
  padding: 1.2rem;
  text-decoration: none;
}

.card:hover {
  border-color: rgba(34, 211, 238, 0.45);
  transform: translateY(-2px);
}

.card p,
.muted {
  color: var(--muted);
}

.section {
  padding: 2.5rem 0;
}

.content-panel {
  padding: clamp(1.1rem, 3vw, 2rem);
  overflow-x: auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
}

.stat {
  padding: 1rem;
}

.stat strong {
  display: block;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.stat span {
  color: var(--muted);
  font-size: 0.9rem;
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.6rem 0 0;
}

.toc a {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
}

table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 1rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.85rem;
  text-align: left;
  vertical-align: top;
}

th {
  color: #dfe7ff;
  background: rgba(255, 255, 255, 0.08);
}

tr:last-child td {
  border-bottom: 0;
}

.code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-weight: 800;
  color: #d8b4fe;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.22rem 0.55rem;
  background: rgba(52, 211, 153, 0.13);
  color: #a7f3d0;
  font-weight: 800;
  font-size: 0.82rem;
}

.notice {
  border-left: 4px solid var(--warn);
  background: rgba(251, 191, 36, 0.11);
  padding: 1rem;
  border-radius: 1rem;
}

.source-box {
  color: var(--muted);
  font-size: 0.93rem;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding-top: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 3rem;
  padding: 2rem 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.list-check {
  padding-left: 1.1rem;
}

.list-check li {
  margin: 0.5rem 0;
}

@media (max-width: 840px) {
  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding: 1rem 0;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .grid.cards,
  .grid.two,
  .stats {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.5rem;
  }
}