:root {
  color-scheme: dark;
  --ink: #eef7ff;
  --muted: #9fb2cc;
  --navy: #061127;
  --blue: #0b63ff;
  --cyan: #20dcff;
  --line: rgba(153, 213, 255, 0.14);
  --panel: rgba(9, 28, 59, 0.62);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 80% 8%, rgba(16, 109, 255, 0.17), transparent 32rem),
    radial-gradient(circle at 10% 78%, rgba(32, 220, 255, 0.1), transparent 28rem),
    var(--navy);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  opacity: 0.45;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

body::after {
  position: fixed;
  top: 20%;
  left: -10%;
  z-index: -1;
  width: 24rem;
  height: 24rem;
  content: "";
  border-radius: 50%;
  background: rgba(0, 153, 255, 0.16);
  filter: blur(90px);
}

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 10px 14px;
  border-radius: 10px;
  color: #041025;
  font-weight: 800;
  text-decoration: none;
  background: var(--cyan);
  transform: translateY(-160%);
}

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

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.86rem;
  font-weight: 750;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  box-shadow: 0 0 22px rgba(32, 220, 255, 0.34);
}

.top-contact {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 160ms ease;
}

.top-contact:hover,
.top-contact:focus-visible {
  color: var(--cyan);
}

main {
  padding: 72px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(36px, 7vw, 96px);
  align-items: center;
  min-height: 560px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 30px;
  height: 1px;
  content: "";
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.5rem, 9vw, 7.4rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

h1 span {
  display: block;
  color: transparent;
  background: linear-gradient(92deg, #ffffff 10%, #74eaff 52%, #3a7bff 100%);
  background-clip: text;
  -webkit-background-clip: text;
}

.intro {
  max-width: 660px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.75;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid rgba(111, 226, 255, 0.45);
  border-radius: 999px;
  color: #041025;
  font-weight: 800;
  text-decoration: none;
  background: linear-gradient(120deg, #72efff, #5c8fff);
  box-shadow: 0 12px 32px rgba(0, 122, 255, 0.24);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 170, 255, 0.34);
}

.logo-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
}

.logo-stage::before,
.logo-stage::after {
  position: absolute;
  content: "";
  border-radius: 50%;
}

.logo-stage::before {
  width: 90%;
  aspect-ratio: 1;
  border: 1px solid rgba(75, 208, 255, 0.18);
  box-shadow:
    inset 0 0 70px rgba(11, 99, 255, 0.09),
    0 0 100px rgba(11, 99, 255, 0.11);
}

.logo-stage::after {
  width: 68%;
  aspect-ratio: 1;
  border: 1px dashed rgba(112, 229, 255, 0.16);
  animation: orbit 36s linear infinite;
}

.logo-stage img {
  position: relative;
  z-index: 1;
  width: min(100%, 390px);
  border-radius: 25%;
  filter: drop-shadow(0 26px 48px rgba(0, 80, 255, 0.35));
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 52px;
}

.principle {
  min-height: 190px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(15, 44, 82, 0.62), var(--panel));
  backdrop-filter: blur(12px);
}

.number {
  display: block;
  margin-bottom: 42px;
  color: var(--cyan);
  font: 700 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.14em;
}

h2 {
  margin: 0 0 9px;
  font-size: 1.15rem;
}

.principle p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  margin-top: 86px;
  padding: 36px 0 44px;
  border-top: 1px solid var(--line);
}

.footer-brand {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 750;
  letter-spacing: -0.035em;
}

.footer-brand small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  align-items: center;
  justify-content: flex-end;
}

.legal-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  text-underline-offset: 5px;
}

.legal-link:hover,
.legal-link:focus-visible {
  color: var(--cyan);
}

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

@media (max-width: 900px) {
  main {
    padding-top: 48px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .logo-stage {
    order: -1;
    min-height: 300px;
  }

  .logo-stage img {
    width: min(76vw, 310px);
  }

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

  .principle {
    min-height: auto;
  }

  .number {
    margin-bottom: 28px;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 28px, 1120px);
  }

  header {
    min-height: 72px;
  }

  .top-contact {
    display: none;
  }

  h1 {
    font-size: clamp(3.3rem, 19vw, 5rem);
  }

  main {
    padding-top: 36px;
  }

  .hero {
    gap: 24px;
  }

  .actions,
  .button {
    width: 100%;
  }

  .button {
    padding-inline: 18px;
  }

  footer {
    grid-template-columns: 1fr;
    align-items: start;
  }

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

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

  .logo-stage::after {
    animation: none;
  }

  .button {
    transition: none;
  }
}