:root {
  --bg: #020817;
  --bg-soft: #07111f;
  --panel: rgba(9, 19, 35, 0.72);
  --panel-strong: rgba(12, 25, 47, 0.88);
  --border: rgba(160, 214, 255, 0.16);
  --text: #e6f5ff;
  --muted: #93aeca;
  --accent: #65f0ff;
  --accent-strong: #25b7ff;
  --accent-warm: #ffb86b;
  --shadow: 0 30px 120px rgba(0, 0, 0, 0.42);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1180px;
  --font-display: "Segoe UI", "Avenir Next", "Trebuchet MS", sans-serif;
  --font-body: "Segoe UI", "Avenir Next", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: radial-gradient(circle at top, rgba(31, 98, 136, 0.28), transparent 34%), var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-bg,
.starfield {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.site-bg {
  z-index: -3;
  opacity: 0.95;
  background:
    radial-gradient(circle at 20% 20%, rgba(33, 186, 255, 0.16), transparent 18%),
    radial-gradient(circle at 80% 18%, rgba(255, 184, 107, 0.14), transparent 16%),
    radial-gradient(circle at 60% 65%, rgba(81, 255, 196, 0.12), transparent 20%),
    linear-gradient(180deg, #081224 0%, #020817 45%, #030711 100%);
}

.site-bg-services {
  background:
    radial-gradient(circle at 15% 10%, rgba(67, 217, 255, 0.18), transparent 20%),
    radial-gradient(circle at 80% 18%, rgba(255, 153, 120, 0.12), transparent 18%),
    linear-gradient(180deg, #07111f 0%, #020710 100%);
}

.site-bg-advantages {
  background:
    radial-gradient(circle at 35% 0%, rgba(101, 240, 255, 0.12), transparent 24%),
    radial-gradient(circle at 75% 22%, rgba(82, 255, 188, 0.14), transparent 18%),
    linear-gradient(180deg, #04111d 0%, #020711 100%);
}

.site-bg-updates {
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 184, 107, 0.12), transparent 22%),
    radial-gradient(circle at 80% 16%, rgba(101, 240, 255, 0.16), transparent 18%),
    linear-gradient(180deg, #08101e 0%, #040711 100%);
}

.site-bg-contact,
.site-bg-legal {
  background:
    radial-gradient(circle at 18% 14%, rgba(84, 204, 255, 0.13), transparent 20%),
    radial-gradient(circle at 84% 18%, rgba(255, 187, 122, 0.12), transparent 18%),
    linear-gradient(180deg, #07111f 0%, #040915 100%);
}

.starfield {
  z-index: -2;
  opacity: 0.65;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1rem 0;
  transition: background 200ms ease, backdrop-filter 200ms ease, border-color 200ms ease;
}

.topbar.is-scrolled {
  background: rgba(2, 8, 23, 0.62);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(160, 214, 255, 0.08);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.95rem 1.2rem;
  border: 1px solid rgba(160, 214, 255, 0.08);
  border-radius: 999px;
  background: rgba(9, 16, 30, 0.45);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand strong,
.brand em {
  display: block;
}

.brand strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand em {
  color: var(--muted);
  font-style: normal;
  font-size: 0.82rem;
}

.main-nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.main-nav a {
  position: relative;
  padding: 0.35rem 0;
  color: var(--muted);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transition: transform 180ms ease;
}

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

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

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.3rem;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  background: rgba(7, 17, 31, 0.8);
  color: var(--text);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: currentColor;
}

.hero {
  position: relative;
  padding: 5.6rem 0 4rem;
}

.hero-home {
  min-height: 92vh;
  display: grid;
  align-items: center;
}

.hero-grid,
.hero-inner-grid,
.two-column,
.footer-grid,
.contact-grid,
.roadmap-grid,
.card-grid-2,
.feature-grid,
.matrix-grid,
.timeline-grid,
.news-list {
  display: grid;
  gap: 1.5rem;
}

.hero-single {
  grid-template-columns: 1fr;
}

.contact-hero-copy {
  max-width: 760px;
}

.advantages-hero-copy {
  max-width: 860px;
}

.advantages-hero-copy h1 {
  max-width: 16ch;
  font-size: clamp(2.4rem, 4.4vw, 4rem);
  line-height: 0.98;
}

.hero-grid {
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
}

.hero-copy h1,
.hero-inner h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.hero-inner h1 {
  font-size: clamp(2.4rem, 4.8vw, 4.4rem);
}

.lead {
  color: #c3d8eb;
  font-size: 1.12rem;
  max-width: 60ch;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.84rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0.9rem 1.45rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, #21d6ff, #2e83ff 55%, #8af2ff);
  color: #01111d;
  box-shadow: 0 18px 50px rgba(37, 183, 255, 0.34);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 2.2rem 0 0;
  list-style: none;
}

.hero-metrics li,
.feature-card,
.service-card,
.matrix-card,
.timeline-card,
.news-card,
.contact-card,
.legal-card,
.mini-card,
.quote-panel,
.glass-card {
  position: relative;
  overflow: hidden;
  padding: 1.45rem;
  background: linear-gradient(180deg, rgba(14, 25, 46, 0.92), rgba(8, 15, 28, 0.76));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-metrics li::before,
.feature-card::before,
.service-card::before,
.matrix-card::before,
.timeline-card::before,
.news-card::before,
.contact-card::before,
.legal-card::before,
.mini-card::before,
.quote-panel::before,
.glass-card::before {
  content: "";
  position: absolute;
  inset: -40% auto auto -25%;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(101, 240, 255, 0.15), transparent 68%);
  opacity: 0.7;
}

.hero-metrics strong {
  display: block;
  font-size: 2.3rem;
  line-height: 1;
  color: var(--accent-warm);
}

.hero-metrics span {
  display: block;
  margin-top: 0.55rem;
  color: var(--muted);
}

.hero-visual {
  position: relative;
  min-height: 560px;
}

.hero-panel-image,
.story-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

.floating-card {
  position: absolute;
  width: min(320px, 70%);
  backdrop-filter: blur(16px);
  animation: drift 7s ease-in-out infinite;
}

.card-a {
  top: 4%;
  right: -2%;
}

.card-b {
  left: -3%;
  bottom: 6%;
  animation-delay: -2s;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.8rem;
  padding: 0.38rem 0.8rem;
  border-radius: 999px;
  background: rgba(101, 240, 255, 0.1);
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section {
  padding: 2rem 0 5rem;
}

.section-panel .container,
.section-story .story-shell {
  padding: 2rem;
  border-radius: var(--radius-xl);
  background: rgba(5, 14, 26, 0.58);
  border: 1px solid rgba(150, 210, 255, 0.08);
  box-shadow: var(--shadow);
}

.section-head {
  margin-bottom: 2rem;
  max-width: 900px;
}

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

.matrix-grid,
.timeline-grid,
.news-list,
.contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.two-column {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.stack-cards {
  display: grid;
  gap: 1rem;
}

.mini-card span,
.news-date,
.timeline-card span {
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.timeline-card span {
  display: inline-flex;
  margin-bottom: 0.8rem;
}

.quote-panel {
  text-align: center;
  padding: 3rem 2rem;
}

.quote-mark {
  margin: 0;
  font-size: 4rem;
  line-height: 1;
  color: var(--accent);
}

blockquote {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1.25;
}

.story-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
  align-items: center;
}

.footer-grid {
  align-items: start;
}

.site-footer {
  padding: 2rem 0 2.8rem;
  border-top: 1px solid rgba(151, 207, 255, 0.08);
  background: rgba(2, 7, 18, 0.7);
}

.site-footer h3 {
  margin-top: 0;
  margin-bottom: 0.9rem;
}

.site-footer a,
.site-footer p {
  color: var(--muted);
}

.site-footer a {
  display: block;
  margin-bottom: 0.65rem;
}

.site-footer .footer-grid > div:nth-child(2) {
  column-count: 3;
  column-gap: 1.2rem;
}

.site-footer .footer-grid > div:nth-child(2) h3 {
  column-span: all;
}

.site-footer .footer-grid > div:nth-child(2) a {
  break-inside: avoid;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand {
  margin-bottom: 1rem;
}

.legal-section {
  padding-top: 0;
}

.legal-shell {
  display: grid;
  gap: 1.3rem;
}

.legal-card h2,
.service-card h2,
.timeline-card h2,
.news-card h2,
.contact-card h2,
.feature-card h3,
.matrix-card h3,
.glass-card h2,
.glass-card h3 {
  margin-top: 0;
}

.legal-card h3 {
  margin-bottom: 0.35rem;
  color: var(--text);
}

.content-block h2,
.section-head h2 {
  margin-top: 0;
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  line-height: 1.04;
}

.contact-card a,
.site-footer a:hover,
.main-nav a:hover {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal-delay-1 {
  transition-delay: 120ms;
}

.reveal-delay-2 {
  transition-delay: 240ms;
}

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

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -14px, 0);
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    padding: 1rem;
    border-radius: 24px;
    background: rgba(3, 11, 22, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

  .main-nav.is-open {
    display: flex;
  }

  .nav-shell {
    position: relative;
    border-radius: 32px;
  }

  .hero-grid,
  .hero-inner-grid,
  .two-column,
  .feature-grid,
  .matrix-grid,
  .timeline-grid,
  .news-list,
  .card-grid-2,
  .contact-grid,
  .roadmap-grid,
  .story-shell,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: auto;
    padding-bottom: 13rem;
  }

  .floating-card {
    position: absolute;
    width: min(320px, 82%);
  }

  .card-a {
    right: 0;
  }

  .card-b {
    left: 0;
    bottom: 1rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .site-footer .footer-grid > div:nth-child(2) {
    column-count: 1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 1.25rem), var(--container));
  }

  .hero {
    padding-top: 4.5rem;
  }

  .section,
  .site-footer {
    padding-bottom: 3rem;
  }

  .section-panel .container,
  .section-story .story-shell,
  .hero-metrics li,
  .feature-card,
  .service-card,
  .matrix-card,
  .timeline-card,
  .news-card,
  .contact-card,
  .legal-card,
  .mini-card,
  .quote-panel,
  .glass-card {
    padding: 1.2rem;
  }

  .brand em {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}