@font-face {
  font-family: "InterVariable";
  src: url("../fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGroteskVariable.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #020607;
  --panel: rgba(7, 20, 24, 0.84);
  --panel-strong: rgba(8, 25, 29, 0.96);
  --line: rgba(129, 235, 211, 0.18);
  --line-strong: rgba(129, 235, 211, 0.38);
  --text: #f4f5ef;
  --muted: #a8b5b3;
  --green: #62e8c6;
  --cyan: #00d9ff;
  --teal: #1effe1;
  --warning: #f0b94f;
  --shadow: 0 32px 100px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 78% -8%, rgba(0, 217, 255, 0.14), transparent 30%),
    radial-gradient(circle at 6% 24%, rgba(98, 232, 198, 0.10), transparent 25%),
    linear-gradient(180deg, #020607 0%, #071318 52%, #020607 100%);
  color: var(--text);
  font-family: "InterVariable", Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.014) 1px, transparent 1px);
  background-size: 62px 62px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--warning);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: none;
}

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

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(2, 8, 10, 0.88);
  backdrop-filter: blur(22px);
}

.site-header .shell,
.site-footer .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-header .shell {
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 16px;
  font-weight: 650;
  text-decoration: none;
}

.brand svg {
  width: 31px;
  fill: none;
  stroke: var(--green);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.8;
}

.brand b {
  color: var(--green);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  color: #c8d3d0;
  font-size: 13px;
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  background: rgba(98, 232, 198, 0.09);
  color: var(--green);
}

.hero {
  padding: clamp(72px, 10vw, 130px) 0 58px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", "InterVariable", sans-serif;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  max-width: 900px;
  margin: 24px 0 20px;
  font-size: clamp(44px, 7vw, 84px);
}

h1 em {
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.hero > p,
.hero .shell > p {
  max-width: 760px;
  margin: 0;
  color: #c6d3d0;
  font-size: clamp(17px, 2vw, 21px);
}

.updated {
  display: block;
  margin-top: 24px;
  color: #778b87;
  font-size: 12px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 44px;
  align-items: start;
  padding-bottom: 100px;
}

.content {
  display: grid;
  gap: 18px;
}

.card,
.contact-card,
.toc {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, var(--panel), rgba(3, 11, 14, 0.82));
  box-shadow: var(--shadow);
}

.card {
  padding: clamp(24px, 4vw, 38px);
}

.card h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 3vw, 36px);
}

.card h3 {
  margin: 26px 0 10px;
  color: #e8efed;
  font-size: 20px;
}

.card p,
.card li,
.card dd {
  color: #bdcac7;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card a,
.contact-card a {
  color: var(--green);
  text-underline-offset: 4px;
}

.card ul,
.card ol {
  display: grid;
  gap: 9px;
  padding-left: 22px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.product-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
}

.product-card.meshmess {
  border-color: rgba(0, 217, 255, 0.28);
}

.product-card small {
  color: var(--green);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.product-card.meshmess small {
  color: var(--cyan);
}

.product-card h2,
.product-card h3 {
  margin: 12px 0 10px;
}

.product-card p {
  margin: 0;
  color: var(--muted);
}

.warning {
  border-color: rgba(240, 185, 79, 0.30);
  background: rgba(240, 185, 79, 0.06);
}

.warning strong {
  color: #f6d38c;
}

.data-table {
  display: grid;
  gap: 1px;
  margin-top: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--line);
}

.data-table > div {
  display: grid;
  grid-template-columns: minmax(150px, 0.7fr) minmax(0, 1.3fr);
  gap: 18px;
  padding: 16px 18px;
  background: var(--panel-strong);
}

.data-table dt {
  color: #eef5f2;
  font-weight: 700;
}

.data-table dd {
  margin: 0;
}

.toc {
  position: sticky;
  top: 100px;
  padding: 20px;
}

.toc strong {
  display: block;
  margin-bottom: 10px;
  color: #eaf0ee;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.toc a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.toc a:hover {
  color: var(--green);
}

.contact-card {
  padding: 28px;
  border-color: var(--line-strong);
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 217, 255, 0.14), transparent 34%),
    linear-gradient(145deg, rgba(13, 36, 40, 0.94), rgba(3, 11, 14, 0.90));
}

.contact-card h2 {
  margin: 0 0 10px;
}

.contact-card p {
  margin: 0;
  color: #c4d0cd;
}

.contact-card .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 20px;
  padding: 0 18px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  color: #03221d;
  font-weight: 750;
  text-decoration: none;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 32px 0 42px;
  color: #82938f;
  font-size: 12px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #bdcac7;
  text-underline-offset: 4px;
}

@media (max-width: 860px) {
  .page-layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    order: -1;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(calc(100% - 30px), 1120px);
  }

  .site-header .shell,
  .site-footer .shell {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header .shell {
    min-height: auto;
    padding-block: 14px;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav a {
    flex: 1;
    justify-content: center;
  }

  .hero {
    padding-top: 62px;
  }

  .data-table > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

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