:root {
  color-scheme: dark;
  --bg: #080b10;
  --bg-deep: #05070a;
  --surface: #0d1219;
  --surface-raised: #111821;
  --surface-glass: rgb(13 18 25 / 82%);
  --text: #f4f7f7;
  --text-soft: #cbd5d7;
  --muted: #8c9b9f;
  --accent: #8bf1df;
  --accent-bright: #c4fff5;
  --accent-ink: #06251f;
  --blue: #7ea7ff;
  --line: rgb(190 216 219 / 13%);
  --line-strong: rgb(190 216 219 / 24%);
  --grid: rgb(179 215 216 / 4.8%);
  --glow: rgb(73 228 205 / 13%);
  --danger: #ff9c9c;
  --success: #8bf1df;
  --shadow: 0 30px 90px rgb(0 0 0 / 28%);
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --container: 1180px;
  --header-height: 78px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f7f6;
  --bg-deep: #e9f0ee;
  --surface: #f9fbfa;
  --surface-raised: #ffffff;
  --surface-glass: rgb(246 250 249 / 86%);
  --text: #0e191b;
  --text-soft: #34464a;
  --muted: #617276;
  --accent: #087f73;
  --accent-bright: #05665d;
  --accent-ink: #ffffff;
  --blue: #406bc0;
  --line: rgb(22 58 61 / 13%);
  --line-strong: rgb(22 58 61 / 24%);
  --grid: rgb(31 99 97 / 5.5%);
  --glow: rgb(13 149 129 / 10%);
  --danger: #a42929;
  --success: #087f73;
  --shadow: 0 30px 90px rgb(33 57 55 / 13%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
  background: var(--bg);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

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

[hidden] {
  display: none !important;
}

:root:not([data-lang="en"]) .lang-en,
:root[data-lang="en"] .lang-ru {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 11px 15px;
  transform: translateY(-150%);
  border: 1px solid var(--accent);
  border-radius: 10px;
  background: var(--surface-raised);
  color: var(--text);
  text-decoration: none;
  transition: transform .2s ease;
}

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

.site-shell {
  position: relative;
  isolation: isolate;
  overflow: clip;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 8%, var(--glow), transparent 30rem),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 44px 44px, 44px 44px, auto;
}

.site-shell::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 10rem;
  left: -18rem;
  width: 42rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(83 126 255 / 7%), transparent 68%);
  pointer-events: none;
}

.container {
  width: min(var(--container), calc(100% - 56px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgb(8 11 16 / 0%);
  transition: border-color .3s ease, background .3s ease, box-shadow .3s ease;
}

:root[data-theme="light"] .site-header {
  background: rgb(243 247 246 / 0%);
}

.site-header.is-scrolled,
.site-header.menu-open {
  border-bottom-color: var(--line);
  background: var(--surface-glass);
  box-shadow: 0 12px 30px rgb(0 0 0 / 8%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
  backdrop-filter: blur(18px) saturate(135%);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 30px;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(2, 7px);
  grid-template-rows: repeat(2, 7px);
  gap: 3px;
  width: 24px;
  height: 24px;
  padding: 2px;
  transform: rotate(45deg);
}

.brand-mark i {
  display: block;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}

.brand-mark i:first-child,
.brand-mark i:last-child {
  border-color: var(--accent);
  background: var(--accent);
}

.brand:hover .brand-mark i:first-child {
  transform: translate(-1px, -1px);
}

.brand:hover .brand-mark i:last-child {
  transform: translate(1px, 1px);
}

.brand-name {
  font-size: 17px;
  font-weight: 620;
  letter-spacing: -.035em;
}

.brand-name > span {
  color: var(--muted);
  font-weight: 430;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  padding-block: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 480;
  text-decoration: none;
  transition: color .2s ease;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--accent);
  transition: transform .25s var(--ease);
}

.desktop-nav a:hover,
.desktop-nav a.is-active {
  color: var(--text);
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgb(255 255 255 / 1.5%);
  color: var(--text-soft);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}

.control:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: var(--surface-raised);
  color: var(--text);
}

.language-control {
  min-width: 44px;
  padding-inline: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
}

.icon-control {
  width: 44px;
  padding: 0;
}

.icon-control svg {
  width: 18px;
  height: 18px;
}

:root[data-theme="dark"] .theme-icon-moon,
:root[data-theme="light"] .theme-icon-sun {
  display: none;
}

.menu-control,
.mobile-nav {
  display: none;
}

.menu-lines {
  position: relative;
  width: 17px;
  height: 12px;
}

.menu-lines i {
  position: absolute;
  left: 0;
  width: 17px;
  height: 1px;
  background: currentColor;
  transition: transform .25s ease, top .25s ease;
}

.menu-lines i:first-child {
  top: 3px;
}

.menu-lines i:last-child {
  top: 9px;
}

.menu-control[aria-expanded="true"] .menu-lines i:first-child {
  top: 6px;
  transform: rotate(45deg);
}

.menu-control[aria-expanded="true"] .menu-lines i:last-child {
  top: 6px;
  transform: rotate(-45deg);
}

.button {
  position: relative;
  display: inline-flex;
  isolation: isolate;
  align-items: center;
  justify-content: center;
  gap: 11px;
  min-height: 48px;
  overflow: hidden;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 13px;
  font-size: 13px;
  font-weight: 620;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s ease, background .24s ease, color .24s ease;
}

.button::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -80%;
  left: -30%;
  width: 35%;
  height: 260%;
  transform: rotate(20deg) translateX(-200%);
  background: linear-gradient(90deg, transparent, rgb(255 255 255 / 28%), transparent);
  transition: transform .55s var(--ease);
}

.button:hover::before {
  transform: rotate(20deg) translateX(480%);
}

.button:hover {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(0);
}

.button svg {
  width: 18px;
  height: 18px;
  transition: transform .24s var(--ease);
}

.button:hover svg {
  transform: translate(2px, -1px);
}

.button-accent {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  box-shadow: 0 14px 38px rgb(76 220 198 / 12%), inset 0 1px 0 rgb(255 255 255 / 32%);
  color: var(--accent-ink);
}

:root[data-theme="light"] .button-accent {
  background: linear-gradient(135deg, #13998b, var(--accent));
}

.button-accent:hover {
  box-shadow: 0 18px 45px rgb(76 220 198 / 19%), inset 0 1px 0 rgb(255 255 255 / 32%);
}

.button-quiet {
  border-color: var(--line-strong);
  background: linear-gradient(135deg, rgb(255 255 255 / 4%), transparent), var(--surface-glass);
  color: var(--text);
}

.button-quiet:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 12px 35px rgb(0 0 0 / 10%);
}

.button-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.button-small {
  min-height: 44px;
  padding-inline: 15px;
  border-radius: 11px;
  font-size: 12px;
}

.button:disabled,
.button[aria-disabled="true"] {
  transform: none;
  opacity: .48;
  box-shadow: none;
  cursor: not-allowed;
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 78px 0 100px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(390px, .9fr);
  align-items: center;
  gap: clamp(48px, 7vw, 92px);
}

.eyebrow,
.kicker {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 22px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .14em;
  line-height: 1.45;
  text-transform: uppercase;
}

.eyebrow::before,
.kicker::before {
  content: "";
  flex: 0 0 auto;
  width: 28px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--text);
  font-size: clamp(44px, 5.9vw, 72px);
  font-weight: 410;
  letter-spacing: -.06em;
  line-height: .99;
}

.hero h1 em {
  color: var(--accent);
  font-style: normal;
}

.hero-lead {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.assurances {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 34px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.assurances > span {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding-right: 13px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.assurances > span + span {
  padding-left: 13px;
  border-left: 1px solid var(--line);
}

.assurances i {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 5px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 9px var(--accent);
}

.architecture {
  position: relative;
  min-height: 500px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgb(255 255 255 / 3%), transparent 52%),
    var(--surface);
  box-shadow: var(--shadow);
}

.architecture::before {
  content: "";
  position: absolute;
  inset: -30%;
  background: conic-gradient(from 150deg, transparent, var(--glow), transparent 32%);
  opacity: .55;
  animation: ambient-spin 18s linear infinite;
}

.diagram-head,
.diagram-foot {
  position: absolute;
  z-index: 5;
  right: 19px;
  left: 19px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.diagram-head {
  top: 18px;
}

.diagram-foot {
  bottom: 18px;
}

.diagram-live {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--accent);
}

.diagram-live > i,
.node-status {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 11px var(--accent);
  animation: status-pulse 2.8s ease-in-out infinite;
}

.topology {
  position: absolute;
  inset: 50px 15px 44px;
}

.topology::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 50%;
  width: 42%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 70%);
  filter: blur(5px);
}

.topology-lines {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.line-base {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.line-signal {
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-dasharray: 3 97;
  stroke-dashoffset: 0;
  filter: drop-shadow(0 0 4px var(--accent));
  animation: signal-run 3.2s linear infinite;
}

.line-signal-b {
  animation-delay: -.8s;
}

.line-signal-c {
  animation-delay: -1.6s;
}

.line-signal-d {
  animation-delay: -2.4s;
}

.topology-orbit {
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 50%;
  border: 1px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
}

.orbit-one {
  width: 68%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
}

.orbit-two {
  width: 45%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-style: dashed;
  animation: orbit-spin 24s linear infinite;
}

.system-node,
.system-core {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--surface-raised);
  box-shadow: 0 10px 30px rgb(0 0 0 / 10%);
  transition: transform .25s var(--ease), border-color .25s ease, box-shadow .25s ease;
}

.system-node {
  width: 128px;
  min-height: 80px;
  padding: 15px;
  border-radius: 13px;
}

.system-node:hover {
  z-index: 4;
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 18px 38px rgb(0 0 0 / 16%), 0 0 24px var(--glow);
}

.system-node .node-status {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 4px;
  height: 4px;
}

.system-node strong,
.system-core strong {
  color: var(--text);
  font-size: 12px;
  font-weight: 620;
}

.system-node small,
.system-core small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.node-network {
  top: 9%;
  left: 1%;
}

.node-compute {
  top: 9%;
  right: 1%;
}

.node-security {
  bottom: 9%;
  left: 1%;
}

.node-monitoring {
  right: 1%;
  bottom: 9%;
}

.node-compute .node-status {
  animation-delay: -.7s;
}

.node-security .node-status {
  animation-delay: -1.4s;
}

.node-monitoring .node-status {
  animation-delay: -2.1s;
}

.system-core {
  top: 50%;
  left: 50%;
  align-items: center;
  width: 156px;
  min-height: 132px;
  padding: 20px;
  transform: translate(-50%, -50%);
  border-color: var(--accent);
  border-radius: 17px;
  box-shadow: 0 0 52px var(--glow), 0 18px 40px rgb(0 0 0 / 16%);
  text-align: center;
}

.system-core:hover {
  transform: translate(-50%, calc(-50% - 3px));
  box-shadow: 0 0 72px color-mix(in srgb, var(--glow) 130%, transparent), 0 22px 45px rgb(0 0 0 / 19%);
}

.core-glyph {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 6px);
  gap: 4px;
  margin-bottom: 16px;
}

.core-glyph i {
  width: 6px;
  height: 20px;
  border: 1px solid var(--accent);
  border-radius: 2px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  animation: core-bars 1.8s ease-in-out infinite;
}

.core-glyph i:nth-child(2) {
  animation-delay: -.6s;
}

.core-glyph i:nth-child(3) {
  animation-delay: -1.2s;
}

.section {
  padding: 104px 0;
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .46fr);
  align-items: end;
  gap: 70px;
  margin-bottom: 50px;
}

.section-heading h2,
.ai-copy h2,
.about-intro h2,
.contact-copy h2 {
  max-width: 760px;
  margin: 0;
  color: var(--text);
  font-size: clamp(34px, 4.3vw, 52px);
  font-weight: 420;
  letter-spacing: -.05em;
  line-height: 1.06;
}

.section-heading > p,
.about-intro > p,
.contact-copy > p,
.ai-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.service-card {
  position: relative;
  isolation: isolate;
  min-height: 245px;
  overflow: hidden;
  padding: 27px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(145deg, transparent 20%, rgb(255 255 255 / 2.5%));
  transition: background .3s ease, transform .3s var(--ease);
}

.service-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -5rem;
  bottom: -5rem;
  width: 12rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 68%);
  opacity: 0;
  transition: opacity .3s ease, transform .5s var(--ease);
}

.service-card:hover {
  z-index: 2;
  background: var(--surface);
  transform: translateY(-4px);
}

.service-card:hover::before {
  transform: translate(-1rem, -1rem);
  opacity: 1;
}

.service-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 47px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .1em;
}

.service-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--accent);
  transition: border-color .3s ease, background .3s ease, transform .3s var(--ease);
}

.service-icon svg {
  width: 20px;
  height: 20px;
}

.service-card:hover .service-icon {
  transform: rotate(-4deg) scale(1.04);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: var(--glow);
}

.service-card h3 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 19px;
  font-weight: 590;
  letter-spacing: -.025em;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.ai-feature {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(430px, 1.1fr);
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background:
    radial-gradient(circle at 8% 12%, var(--glow), transparent 36%),
    var(--surface);
  box-shadow: 0 30px 80px rgb(0 0 0 / 12%);
}

.ai-copy {
  padding: 50px;
}

.ai-copy h2 {
  font-size: clamp(31px, 3.7vw, 46px);
}

.ai-copy > p:not(.kicker) {
  margin-top: 23px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px 20px;
  margin: 29px 0 32px;
  padding: 0;
  color: var(--text-soft);
  font-size: 11px;
  line-height: 1.5;
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.feature-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  border: 1px solid var(--accent);
}

.ai-diagram {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 440px;
  overflow: hidden;
  padding: 46px 34px;
  border-left: 1px solid var(--line);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
}

.ai-diagram::before {
  content: "";
  position: absolute;
  inset: 18% 10%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 70%);
  animation: ai-glow 5s ease-in-out infinite;
}

.ai-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(100px, 1fr) 40px minmax(145px, 1.2fr) 40px minmax(100px, 1fr);
  align-items: center;
  width: 100%;
}

.ai-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 138px;
  padding: 18px 12px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface-raised);
  box-shadow: 0 16px 35px rgb(0 0 0 / 10%);
  text-align: center;
  transition: transform .25s var(--ease), border-color .25s ease;
}

.ai-node:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

.ai-node-main {
  min-height: 182px;
  border-color: var(--accent);
  box-shadow: 0 0 48px var(--glow), 0 16px 35px rgb(0 0 0 / 12%);
}

.ai-node-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  color: var(--accent);
}

.ai-node-icon svg {
  width: 20px;
  height: 20px;
}

.ai-node strong {
  color: var(--text);
  font-size: 12px;
  font-weight: 620;
  line-height: 1.4;
}

.ai-node small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .06em;
  line-height: 1.45;
  text-transform: uppercase;
}

.flow-connector {
  position: relative;
  height: 1px;
  overflow: visible;
  background: linear-gradient(90deg, var(--line-strong), var(--accent), var(--line-strong));
}

.flow-connector::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  transform: rotate(45deg);
  border-top: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
}

.flow-connector i {
  position: absolute;
  top: -2px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 12px var(--accent);
  animation: connector-packet 2.2s linear infinite;
}

.flow-connector:nth-of-type(2) i {
  animation-delay: -1.1s;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}

.delivery-grid article {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  gap: 13px;
  padding: 22px 20px;
  background: var(--bg);
}

.delivery-grid article > span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
}

.delivery-grid strong {
  display: block;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
}

.delivery-grid p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: clamp(60px, 8vw, 100px);
}

.about-intro > p:not(.kicker) {
  margin-top: 27px;
}

.principles {
  border-top: 1px solid var(--line-strong);
}

.principles article {
  display: grid;
  grid-template-columns: 45px minmax(0, 1fr);
  gap: 18px;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.principles article > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .1em;
}

.principles h3 {
  margin: 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}

.principles p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.contact-section {
  padding-bottom: 70px;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(300px, .78fr) minmax(460px, 1.22fr);
  gap: clamp(48px, 7vw, 82px);
  padding: clamp(34px, 5vw, 60px);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  background:
    radial-gradient(circle at 8% 12%, var(--glow), transparent 35%),
    linear-gradient(145deg, rgb(255 255 255 / 2%), transparent 52%),
    var(--surface);
  box-shadow: var(--shadow);
}

.contact-copy > p:not(.kicker) {
  margin-top: 24px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
  margin-top: 30px;
}

.contact-links a,
.text-link {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  text-decoration: none;
  text-underline-offset: 4px;
}

.contact-links a:hover,
.text-link:hover {
  text-decoration: underline;
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.field-wide {
  grid-column: 1 / -1;
}

.field label {
  color: var(--text-soft);
  font-size: 10px;
  font-weight: 560;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.field label small {
  color: var(--muted);
  font-size: inherit;
  font-weight: 450;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: none;
  background: var(--surface-raised);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 2%);
  color: var(--text);
  font-size: 13px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.field input {
  min-height: 48px;
  padding: 0 14px;
}

.field textarea {
  min-height: 122px;
  padding: 13px 14px;
  line-height: 1.6;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--muted);
  opacity: .66;
}

.field input:hover,
.field textarea:hover {
  border-color: var(--line-strong);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--glow), inset 0 1px 0 rgb(255 255 255 / 3%);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 12%, transparent);
}

.field-note {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.55;
}

.field-error {
  min-height: 0;
  color: var(--danger);
  font-size: 10px;
  line-height: 1.4;
}

.field-error:empty {
  display: none;
}

.honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

.collection-notice {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.notice-icon,
.privacy-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--accent);
}

.notice-icon svg,
.privacy-mark svg {
  width: 16px;
  height: 16px;
}

.collection-notice p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.65;
}

.collection-notice a,
.consent a {
  color: var(--accent);
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  text-underline-offset: 3px;
}

.collection-notice a:hover,
.consent a:hover {
  text-decoration-color: var(--accent);
}

.consent {
  position: relative;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  color: var(--text-soft);
  font-size: 10px;
  line-height: 1.6;
  cursor: pointer;
}

.consent > input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.consent-box {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--accent-ink);
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.consent-box svg {
  width: 13px;
  height: 13px;
  stroke-width: 2;
  opacity: 0;
  transform: scale(.7);
  transition: opacity .15s ease, transform .15s ease;
}

.consent > input:checked + .consent-box {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--glow);
}

.consent > input:checked + .consent-box svg {
  opacity: 1;
  transform: scale(1);
}

.consent > input:focus-visible + .consent-box {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.consent > input[aria-invalid="true"] + .consent-box {
  border-color: var(--danger);
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 3px;
}

.form-footer p {
  max-width: 220px;
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.55;
}

.submit-button {
  min-width: 190px;
}

.button-loading {
  display: none;
  align-items: center;
  gap: 9px;
}

.inquiry-form.is-submitting .button-label,
.inquiry-form.is-submitting .submit-button > svg {
  display: none;
}

.inquiry-form.is-submitting .button-loading {
  display: inline-flex;
}

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid color-mix(in srgb, currentColor 30%, transparent);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

.form-status {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-raised);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.form-status.is-success {
  border-color: color-mix(in srgb, var(--success) 45%, var(--line));
  background: color-mix(in srgb, var(--success) 6%, var(--surface-raised));
  color: var(--success);
}

.form-status.is-error {
  border-color: color-mix(in srgb, var(--danger) 45%, var(--line));
  background: color-mix(in srgb, var(--danger) 6%, var(--surface-raised));
  color: var(--danger);
}

.privacy-bar {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  align-items: center;
  gap: 15px;
  margin-top: 30px;
  padding: 21px 23px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.privacy-mark {
  width: 38px;
  height: 38px;
}

.privacy-bar strong {
  display: block;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
}

.privacy-bar p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.site-footer {
  padding: 38px 0 44px;
}

.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 13px 22px;
  max-width: 720px;
}

.footer-links a,
.footer-cookie-settings {
  color: var(--muted);
  font-size: 10px;
  text-decoration: none;
  transition: color .2s ease;
}

.footer-cookie-settings {
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  cursor: pointer;
}

.footer-links a:hover,
.footer-cookie-settings:hover {
  color: var(--text);
}

.cookie-notice {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 120;
  width: min(430px, calc(100vw - 28px));
  padding: 20px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-raised) 96%, transparent);
  box-shadow: 0 22px 70px rgba(0, 0, 0, .35);
  backdrop-filter: blur(18px);
}

.cookie-notice[hidden] {
  display: none;
}

.cookie-notice strong {
  display: block;
  color: var(--text);
  font-size: 14px;
}

.cookie-notice p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.cookie-notice-actions {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}

.cookie-notice-actions > a {
  color: var(--muted);
  font-size: 12px;
}

.cookie-notice-button {
  min-height: 42px;
  padding: 0 20px;
}

.motion-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.motion-ready .reveal-delay-short {
  transition-delay: .08s;
}

.motion-ready .reveal-delay {
  transition-delay: .16s;
}

.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes signal-run {
  to { stroke-dashoffset: -100; }
}

@keyframes ambient-spin {
  to { transform: rotate(360deg); }
}

@keyframes orbit-spin {
  from { transform: translate(-50%, -50%) rotate(0); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes status-pulse {
  0%, 100% { opacity: .45; transform: scale(.85); }
  48% { opacity: 1; transform: scale(1.2); }
}

@keyframes core-bars {
  0%, 100% { transform: scaleY(.45); opacity: .45; }
  50% { transform: scaleY(1); opacity: 1; }
}

@keyframes ai-glow {
  0%, 100% { opacity: .65; transform: scale(.94); }
  50% { opacity: 1; transform: scale(1.05); }
}

@keyframes connector-packet {
  from { left: 0; opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  to { left: calc(100% - 4px); opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 1040px) {
  .desktop-nav {
    gap: 18px;
  }

  .header-cta {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(350px, .85fr);
    gap: 44px;
  }

  .system-node {
    width: 112px;
  }

  .ai-feature {
    grid-template-columns: 1fr;
  }

  .ai-diagram {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .contact-panel {
    grid-template-columns: minmax(250px, .7fr) minmax(420px, 1.3fr);
    gap: 40px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 72px;
  }

  .desktop-nav {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .menu-control {
    display: inline-flex;
  }

  .mobile-nav {
    display: block;
    border-top: 1px solid var(--line);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .mobile-nav-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 12px 0 18px;
  }

  .mobile-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 52px;
    padding: 0 16px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text-soft);
    font-size: 13px;
    text-decoration: none;
  }

  .mobile-nav a > span:last-child {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 8px;
  }

  .hero {
    min-height: auto;
    padding: 70px 0 86px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .architecture {
    width: min(100%, 620px);
    min-height: 520px;
  }

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

  .section-heading,
  .about-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 24px;
  }

  .about-grid,
  .contact-panel {
    gap: 48px;
  }

  .contact-copy {
    max-width: 640px;
  }
}

@media (max-width: 620px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(var(--container), calc(100% - 30px));
  }

  .header-inner {
    gap: 12px;
  }

  .brand-name {
    font-size: 15px;
  }

  .language-control,
  .icon-control {
    width: 38px;
    min-width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 10px;
  }

  .hero {
    padding: 54px 0 68px;
  }

  .hero h1 {
    font-size: clamp(38px, 11vw, 49px);
    line-height: 1.01;
  }

  .hero-lead {
    font-size: 15px;
  }

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

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

  .assurances {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .assurances > span + span {
    padding-left: 0;
    border-left: 0;
  }

  .architecture {
    min-height: 455px;
    border-radius: 18px;
  }

  .topology {
    inset: 50px 5px 42px;
  }

  .system-node {
    width: 94px;
    min-height: 72px;
    padding: 11px;
  }

  .system-node strong {
    font-size: 10px;
  }

  .system-node small {
    font-size: 6px;
  }

  .system-core {
    width: 128px;
    min-height: 116px;
    padding: 14px 10px;
  }

  .system-core strong {
    font-size: 11px;
  }

  .diagram-foot {
    font-size: 6px;
  }

  .section {
    padding: 74px 0;
  }

  .section-heading {
    margin-bottom: 35px;
  }

  .section-heading h2,
  .about-intro h2,
  .contact-copy h2 {
    font-size: clamp(31px, 9.5vw, 42px);
  }

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

  .service-card {
    min-height: 215px;
    padding: 23px;
  }

  .service-meta {
    margin-bottom: 36px;
  }

  .ai-feature {
    border-radius: 18px;
  }

  .ai-copy {
    padding: 34px 22px;
  }

  .ai-copy h2 {
    font-size: clamp(29px, 9vw, 39px);
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .ai-copy .button {
    width: 100%;
  }

  .ai-diagram {
    min-height: 570px;
    padding: 36px 24px;
  }

  .ai-flow {
    grid-template-columns: minmax(0, 220px);
    justify-content: center;
    gap: 14px;
  }

  .ai-node,
  .ai-node-main {
    min-height: 120px;
  }

  .flow-connector {
    justify-self: center;
    width: 1px;
    height: 30px;
    background: linear-gradient(var(--line-strong), var(--accent), var(--line-strong));
  }

  .flow-connector::after {
    top: auto;
    right: -3px;
    bottom: 0;
    transform: rotate(135deg);
  }

  .flow-connector i {
    top: 0;
    left: -2px;
    animation-name: connector-packet-vertical;
  }

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

  .contact-panel {
    padding: 31px 20px;
    border-radius: 18px;
  }

  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .field-wide {
    grid-column: 1;
  }

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

  .form-footer p {
    max-width: none;
  }

  .submit-button {
    width: 100%;
  }

  .privacy-bar {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .privacy-bar .text-link {
    grid-column: 2;
    justify-self: start;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .cookie-notice {
    right: 14px;
    bottom: 14px;
    padding: 17px;
  }

  .cookie-notice-actions {
    align-items: stretch;
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .cookie-notice-button {
    width: 100%;
  }
}

@keyframes connector-packet-vertical {
  from { top: 0; opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  to { top: calc(100% - 4px); opacity: 0; }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .motion-ready .reveal {
    opacity: 1;
    transform: none;
  }
}