:root {
  color-scheme: dark;
  --color-background: #070c14;
  --color-surface: #0b1420;
  --color-text: #eef4fb;
  --color-muted: #8fa1b6;
  --color-accent: #62aee8;
  --color-line: rgba(127, 161, 194, 0.08);
  --page-gutter: clamp(1.25rem, 4vw, 4rem);
}

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

html {
  background: var(--color-background);
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% 46%, rgba(44, 107, 157, 0.16), transparent 36rem),
    linear-gradient(145deg, var(--color-surface), var(--color-background) 58%);
  color: var(--color-text);
}

body::before,
body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
}

body::before {
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-position: center;
  background-size: clamp(2.5rem, 5vw, 4rem) clamp(2.5rem, 5vw, 4rem);
  mask-image: radial-gradient(circle at center, black, transparent 76%);
}

body::after {
  background: radial-gradient(circle at 50% 42%, rgba(75, 156, 218, 0.1), transparent 24rem);
  animation: ambient-glow 10s ease-in-out infinite alternate;
}

.page-shell {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 100vh;
  min-height: 100svh;
}

.hero {
  display: grid;
  place-items: center;
  align-content: center;
  width: min(100%, 64rem);
  margin-inline: auto;
  padding: clamp(3rem, 9vh, 7rem) var(--page-gutter) clamp(2rem, 5vh, 4rem);
  text-align: center;
}

.mark {
  display: grid;
  width: clamp(7rem, 18vw, 10rem);
  margin-bottom: clamp(2rem, 5vh, 3.5rem);
  place-items: center;
  color: var(--color-accent);
  filter: drop-shadow(0 0 1.5rem rgba(98, 174, 232, 0.18));
}

.mark__symbol {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  animation: symbol-breathe 10s ease-in-out infinite alternate;
}

.mark__frame,
.mark__network,
.mark__core {
  fill: none;
  stroke: currentColor;
}

.mark__frame {
  stroke-width: 1.5;
}

.mark__network {
  stroke-width: 1.6;
}

.mark__network path {
  fill: none;
}

.mark__network circle,
.mark__core-dot {
  fill: currentColor;
  stroke: none;
}

.mark__core {
  stroke-width: 2;
}

.hero__content {
  width: 100%;
}

h1,
p {
  margin-block: 0;
}

h1 {
  margin-right: -0.16em;
  font-size: clamp(2.25rem, 14vw, 6.75rem);
  font-weight: 560;
  letter-spacing: 0.16em;
  line-height: 0.95;
}

.hero__identity {
  margin-top: clamp(1rem, 2.5vh, 1.5rem);
  color: var(--color-accent);
  font-size: clamp(0.78rem, 1.8vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero__status {
  margin-top: clamp(2.2rem, 6vh, 4rem);
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
  font-weight: 420;
  letter-spacing: 0.025em;
}

.hero__statement {
  max-width: 42rem;
  margin: 0.8rem auto 0;
  color: var(--color-muted);
  font-size: clamp(0.9rem, 2vw, 1.05rem);
}

.site-footer {
  padding: 1.5rem var(--page-gutter) max(1.5rem, env(safe-area-inset-bottom));
  color: var(--color-muted);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-align: center;
}

@keyframes ambient-glow {
  from {
    opacity: 0.62;
  }

  to {
    opacity: 1;
  }
}

@keyframes symbol-breathe {
  from {
    transform: scale(0.99);
  }

  to {
    transform: scale(1.01);
  }
}

@media (max-width: 30rem) {
  h1 {
    margin-right: -0.11em;
    letter-spacing: 0.11em;
  }

  .hero__identity {
    letter-spacing: 0.14em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}