:root {
  --bg: #070914;
  --bg-soft: #0b1020;
  --panel: rgba(12, 16, 29, 0.78);
  --ink: #f1f4fb;
  --muted: #97a1bb;
  --line: rgba(101, 130, 209, 0.18);
  --line-strong: rgba(66, 219, 226, 0.34);
  --accent: #43dbe2;
  --accent-2: #4b7dff;
  --success: #27dd86;
  --warning: #ffbf47;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --max-width: 1280px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 50% 0%, rgba(67, 219, 226, 0.12), transparent 24%),
    linear-gradient(rgba(87, 107, 173, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 107, 173, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, #060810 0%, #090d18 100%);
  background-size: auto, 40px 40px, 40px 40px, auto;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

code,
pre,
.mono,
.site-nav,
.eyebrow,
.hero-tag,
.button,
.pill,
.section-index,
.kicker,
.download-link,
.doc-meta span,
.status-item,
.toc a {
  font-family: "Oxanium", "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.app-shell {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 72px;
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 14px 18px;
  position: sticky;
  top: 10px;
  z-index: 20;
  border: 1px solid var(--line);
  background: rgba(6, 9, 18, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 12px rgba(67, 219, 226, 0.18));
}

.brand-stack {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-stack strong {
  font-size: 1.04rem;
  font-weight: 700;
}

.brand-stack span,
.site-nav a,
.hero-copy p,
.hero-panel p,
.card p,
.content p,
.content li,
.footer,
.download-link,
.section-intro,
.doc-intro,
.toc span {
  color: var(--muted);
}

.site-nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 0.84rem;
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  gap: 24px;
  padding: 42px 0 28px;
}

.hero-copy,
.hero-panel,
.status-strip,
.card,
.content-card,
.callout,
.toc,
.download-list,
.footer-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 600;
}

.hero-tag {
  display: inline-flex;
  width: fit-content;
  min-height: 38px;
  align-items: center;
  padding: 0 16px;
  margin-bottom: 18px;
  border: 1px solid rgba(67, 219, 226, 0.25);
  background: rgba(10, 22, 30, 0.52);
  color: var(--accent);
  box-shadow: inset 0 0 18px rgba(67, 219, 226, 0.08);
}

.hero h1,
.section-heading h2,
.footer-card h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4.7vw, 4.35rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero h1 {
  max-width: 12ch;
}

.hero-copy .lead {
  max-width: 44rem;
  margin: 22px 0 0;
  font-size: 1.08rem;
  line-height: 1.78;
}

.hero-actions,
.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  font-size: 0.84rem;
  font-weight: 700;
}

.button-primary {
  background: linear-gradient(135deg, rgba(15, 164, 255, 0.94), rgba(67, 219, 226, 0.9));
  color: #031019;
  box-shadow: 0 0 26px rgba(52, 181, 255, 0.24);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--line);
  color: var(--ink);
}

.hero-meta,
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.pill {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid rgba(67, 219, 226, 0.2);
  background: rgba(67, 219, 226, 0.05);
  color: var(--accent);
  font-size: 0.72rem;
}

.hero-panel {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.hero-panel .panel-label,
.kicker {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
}

.hero-panel strong {
  font-size: 1.18rem;
  line-height: 1.35;
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.hero-stat-grid article {
  padding: 14px;
  border: 1px solid rgba(67, 219, 226, 0.12);
  background: rgba(8, 13, 24, 0.74);
}

.hero-stat-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 0.95;
}

.hero-stat-grid span {
  color: var(--muted);
  line-height: 1.5;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 16px 18px;
  margin-bottom: 20px;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
  font-size: 0.74rem;
  color: rgba(241, 244, 251, 0.84);
}

.status-item strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px rgba(39, 221, 134, 0.52);
}

.section {
  padding: 44px 0 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 24px;
}

.section-index {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 700;
  color: rgba(241, 244, 251, 0.84);
}

.section-index::after {
  content: "";
  display: block;
  width: 1px;
  height: 64px;
  margin-left: 4px;
  background: var(--line);
}

.section-intro {
  max-width: 52rem;
  margin: -6px 0 0;
  line-height: 1.78;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  padding: 22px;
  overflow: hidden;
}

.card::before,
.content-card::before,
.callout::before,
.download-list::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(67, 219, 226, 0.08), transparent 36%);
  pointer-events: none;
}

.card h3,
.content h2,
.content h3,
.footer-card h2 {
  margin: 0 0 10px;
}

.card h3 {
  font-size: 1.3rem;
  line-height: 1.15;
}

.card p {
  margin: 0;
  line-height: 1.72;
}

.card .card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.card-link {
  color: var(--ink);
  font-weight: 700;
}

.doc-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.38fr) minmax(0, 1fr);
  gap: 18px;
}

.toc,
.download-list,
.content-card,
.footer-card {
  position: relative;
  padding: 22px;
}

.toc {
  align-self: start;
  position: sticky;
  top: 96px;
}

.toc strong {
  display: block;
  margin-bottom: 14px;
  font-size: 1rem;
}

.toc nav {
  display: grid;
  gap: 10px;
}

.toc a {
  font-size: 0.74rem;
  color: rgba(241, 244, 251, 0.82);
}

.content-card {
  overflow: hidden;
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.doc-meta span {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid rgba(67, 219, 226, 0.16);
  background: rgba(67, 219, 226, 0.04);
  color: var(--accent);
  font-size: 0.7rem;
}

.content {
  line-height: 1.8;
}

.content h2 {
  padding-top: 8px;
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  line-height: 1.1;
}

.content h3 {
  padding-top: 4px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.content p,
.content ul,
.content ol,
.content pre,
.download-list p,
.footer-card p {
  margin: 0 0 16px;
}

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

.content li + li {
  margin-top: 8px;
}

.content pre {
  overflow-x: auto;
  padding: 16px;
  border: 1px solid rgba(67, 219, 226, 0.12);
  background: rgba(8, 13, 24, 0.86);
  color: rgba(241, 244, 251, 0.92);
  line-height: 1.65;
  font-size: 0.9rem;
}

.content code {
  color: #b8ecff;
}

.content pre code {
  color: inherit;
}

.callout {
  position: relative;
  padding: 20px;
  margin: 22px 0 16px;
  overflow: hidden;
}

.callout strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1rem;
}

.callout p,
.callout li {
  color: rgba(241, 244, 251, 0.82);
}

.download-list {
  overflow: hidden;
}

.download-list strong {
  display: block;
  margin-bottom: 14px;
  font-size: 1rem;
}

.download-links {
  display: grid;
  gap: 10px;
}

.download-link {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(67, 219, 226, 0.16);
  background: rgba(67, 219, 226, 0.04);
  color: rgba(241, 244, 251, 0.88);
  font-size: 0.72rem;
}

.download-link span:last-child {
  color: var(--accent);
}

.footer-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: end;
  margin-top: 44px;
}

.footer {
  margin-top: 18px;
  text-align: center;
  font-size: 0.92rem;
}

@media (max-width: 1180px) {
  .hero,
  .doc-layout,
  .footer-card {
    grid-template-columns: 1fr;
  }

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

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

  .toc {
    position: static;
  }
}

@media (max-width: 860px) {
  .site-header,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .app-shell {
    width: min(var(--max-width), calc(100% - 24px));
    padding-bottom: 56px;
  }

  .site-header {
    gap: 16px;
    padding: 14px 14px 12px;
    top: 6px;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 12px 16px;
    font-size: 0.78rem;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 28px 0 18px;
  }

  .hero h1,
  .hero-copy .lead,
  .section-intro {
    max-width: none;
  }

  .hero-stat-grid,
  .card-grid,
  .status-strip {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 36px;
  }

  .section-heading {
    gap: 12px;
    margin-bottom: 20px;
  }

  .section-index {
    font-size: clamp(1.6rem, 7vw, 2.4rem);
  }

  .section-index::after {
    display: none;
  }

  .content-card,
  .download-list,
  .toc,
  .callout,
  .card,
  .hero-panel,
  .footer-card {
    padding: 18px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100% - 20px, var(--max-width));
    padding-top: 12px;
  }

  .site-header {
    position: static;
    padding: 12px;
  }

  .brand {
    gap: 10px;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
  }

  .brand-stack strong {
    font-size: 0.96rem;
  }

  .brand-stack span {
    font-size: 0.82rem;
  }

  .hero-actions,
  .footer-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero h1 {
    font-size: clamp(2rem, 10vw, 3.2rem);
  }

  .hero-copy .lead,
  .section-intro,
  .content p,
  .content li,
  .footer-card p {
    font-size: 0.94rem;
    line-height: 1.68;
  }

  .download-link {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px;
  }

  .section {
    padding-top: 30px;
  }

  .section-heading h2,
  .footer-card h2 {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    line-height: 1.04;
  }

  .card h3,
  .content h3 {
    font-size: 1.08rem;
  }
}