:root {
  color-scheme: dark;
  --page: #070d14;
  --page-deep: #05090f;
  --surface: #0d1722;
  --surface-strong: #111e2b;
  --text: #edf7fb;
  --muted: #a6b7c2;
  --line: rgba(189, 224, 238, 0.16);
  --line-strong: rgba(117, 222, 255, 0.34);
  --cyan: #64dcff;
  --cyan-strong: #28c7f4;
  --cyan-soft: rgba(100, 220, 255, 0.11);
  --lime: #a9ef4d;
  --lime-soft: rgba(169, 239, 77, 0.12);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 2%, rgba(40, 199, 244, 0.12), transparent 29rem),
    radial-gradient(circle at 5% 34%, rgba(36, 95, 128, 0.12), transparent 25rem),
    linear-gradient(180deg, var(--page) 0%, var(--page-deep) 100%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

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

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: #02131a;
  background: var(--cyan);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-180%);
}

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

.shell {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(189, 224, 238, 0.09);
  background: rgba(7, 13, 20, 0.76);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  font-weight: 780;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 39px;
  height: 39px;
  place-items: center;
  border: 1px solid rgba(100, 220, 255, 0.4);
  border-radius: 11px;
  color: var(--cyan);
  background: var(--cyan-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  font-weight: 750;
}

.header-actions,
.main-nav,
.language-switch {
  display: flex;
  align-items: center;
}

.header-actions {
  gap: 22px;
}

.main-nav {
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.mobile-nav {
  display: none;
}

.main-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  text-underline-offset: 5px;
}

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

.language-switch {
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.025);
}

.language-switch a {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  border-radius: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.language-switch a[aria-current="page"] {
  color: #02151d;
  background: var(--cyan);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  min-height: 680px;
  align-items: center;
  gap: clamp(40px, 7vw, 88px);
  padding: clamp(72px, 10vw, 126px) 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: 0 0 18px currentColor;
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(48px, 6.6vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.048em;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.lede {
  max-width: 650px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  font-weight: 760;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  border-color: var(--line-strong);
  background: rgba(100, 220, 255, 0.08);
  transform: translateY(-2px);
}

.button.primary {
  border-color: var(--cyan);
  color: #02151d;
  background: var(--cyan);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #8ae6ff;
}

.button.lime {
  border-color: var(--lime);
  color: #0b1803;
  background: var(--lime);
}

.button.lime:hover,
.button.lime:focus-visible {
  background: #bcff65;
}

.hero-visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 32px;
  overflow: hidden;
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.025) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.025) 75%),
    linear-gradient(45deg, rgba(255, 255, 255, 0.025) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.025) 75%),
    radial-gradient(circle at 50% 55%, rgba(100, 220, 255, 0.12), transparent 48%),
    #0a121b;
  background-position: 0 0, 16px 16px, center;
  background-size: 32px 32px, 32px 32px, auto;
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 1.08;
  object-fit: contain;
  padding: clamp(18px, 3vw, 38px);
  filter: drop-shadow(0 25px 28px rgba(0, 0, 0, 0.52));
}

.hero-visual figcaption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  left: 18px;
  color: #9eb0ba;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  text-align: center;
}

.section {
  padding: clamp(82px, 11vw, 136px) 0;
  border-top: 1px solid rgba(189, 224, 238, 0.09);
}

.section-intro {
  max-width: 700px;
  margin-bottom: 46px;
}

.section-intro > p:last-child,
.muted {
  color: var(--muted);
}

.product-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(36px, 7vw, 82px);
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(169, 239, 77, 0.22);
  border-radius: 30px;
  background:
    radial-gradient(circle at 88% 4%, rgba(169, 239, 77, 0.1), transparent 24rem),
    linear-gradient(145deg, rgba(15, 25, 22, 0.96), rgba(8, 15, 16, 0.98));
  box-shadow: var(--shadow);
}

.product-visual {
  margin: 0;
  border: 1px solid rgba(169, 239, 77, 0.17);
  border-radius: 22px;
  overflow: hidden;
  background: #0b120f;
}

.product-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-copy .eyebrow {
  color: var(--lime);
}

.product-copy > p:not(.eyebrow) {
  color: var(--muted);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin: 26px 0 32px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 19px;
  color: #dbe7e0;
  font-size: 14px;
}

.feature-list li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--lime);
  content: "";
}

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

.principle {
  min-height: 225px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(14, 24, 35, 0.7);
}

.principle-number {
  display: block;
  margin-bottom: 38px;
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
}

.principle p {
  margin-bottom: 0;
  color: var(--muted);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(40px, 9vw, 110px);
}

.about-grid h2 {
  max-width: 430px;
}

.about-copy {
  max-width: 690px;
  color: var(--muted);
  font-size: 18px;
}

.contact-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: clamp(30px, 5vw, 58px);
  border: 1px solid var(--line-strong);
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(100, 220, 255, 0.11), rgba(16, 30, 42, 0.48));
}

.contact-panel h2 {
  max-width: 670px;
  margin-bottom: 12px;
}

.contact-panel p {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  padding: 34px 0 42px;
  border-top: 1px solid rgba(189, 224, 238, 0.09);
  color: var(--muted);
  font-size: 13px;
}

.footer-row,
.footer-links {
  display: flex;
  align-items: center;
}

.footer-row {
  justify-content: space-between;
  gap: 24px;
}

.footer-links {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

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

.legal-page main {
  min-height: calc(100vh - 174px);
}

.legal {
  width: min(780px, calc(100% - 40px));
  margin-inline: auto;
  padding: clamp(72px, 10vw, 120px) 0;
}

.legal .eyebrow {
  margin-bottom: 18px;
}

.legal h1 {
  margin-bottom: 20px;
  font-size: clamp(44px, 7vw, 72px);
}

.legal h2 {
  margin-top: 52px;
  font-size: clamp(27px, 4vw, 36px);
  letter-spacing: -0.035em;
}

.legal h3 {
  margin-top: 32px;
}

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

.legal strong {
  color: var(--text);
}

.legal a {
  color: var(--cyan);
  text-underline-offset: 4px;
}

.legal-note {
  margin: 28px 0 46px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(100, 220, 255, 0.055);
}

.legal address {
  color: var(--muted);
  font-style: normal;
}

@media (max-width: 860px) {
  .main-nav {
    display: none;
  }

  .mobile-nav {
    display: flex;
    gap: 8px;
    padding-bottom: 12px;
    overflow-x: auto;
    color: var(--muted);
    font-size: 13px;
    scrollbar-width: none;
  }

  .mobile-nav::-webkit-scrollbar {
    display: none;
  }

  .mobile-nav a {
    display: inline-flex;
    min-height: 44px;
    flex: 0 0 auto;
    align-items: center;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    text-decoration: none;
  }

  .mobile-nav a:hover,
  .mobile-nav a:focus-visible {
    color: var(--text);
    border-color: var(--line-strong);
  }

  .hero,
  .product-panel,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    gap: 54px;
  }

  .hero-visual {
    width: min(620px, 100%);
    margin-inline: auto;
  }

  .product-copy {
    order: -1;
  }

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

  .principle {
    min-height: auto;
  }

  .principle-number {
    margin-bottom: 24px;
  }

  .contact-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .shell,
  .legal {
    width: min(100% - 28px, 1160px);
  }

  .topbar {
    min-height: 74px;
  }

  .header-actions {
    gap: 10px;
  }

  .brand > span:last-child {
    display: none;
  }

  .hero {
    padding: 64px 0 78px;
  }

  h1 {
    font-size: clamp(43px, 14vw, 62px);
  }

  .hero-visual figcaption {
    position: static;
    padding: 0 16px 16px;
  }

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

  .product-panel {
    padding: 22px;
    border-radius: 23px;
  }

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

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

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}