:root {
  color-scheme: dark;
  --bg: #050506;
  --text: #f6f7f4;
  --halo: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 52% 44%, rgba(255, 255, 255, 0.09), transparent 34rem),
    linear-gradient(145deg, #010102 0%, var(--bg) 48%, #090a09 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 0%, transparent 76%);
}

#network-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  display: block;
}

.page-shell {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 4vw, 4rem);
}

.intro {
  width: min(100%, 760px);
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.logo-frame {
  position: relative;
  width: clamp(150px, 28vw, 260px);
  aspect-ratio: 1;
  margin-bottom: clamp(2rem, 5vh, 3.4rem);
}

.logo-frame::before {
  position: absolute;
  inset: -18%;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.18), transparent 52%),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.09), transparent 70%);
  filter: blur(18px);
}

.brand-logo {
  width: 100%;
  height: auto;
  display: block;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(circle at center, #000 44%, rgba(0, 0, 0, 0.9) 58%, rgba(0, 0, 0, 0.32) 70%, transparent 82%);
  mask-image: radial-gradient(circle at center, #000 44%, rgba(0, 0, 0, 0.9) 58%, rgba(0, 0, 0, 0.32) 70%, transparent 82%);
}

h1 {
  width: 100%;
  margin: 0;
  font-family: inherit;
  font-size: clamp(0.92rem, 2.2vw, 1.35rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
}

@media (max-width: 560px) {
  body {
    overflow-y: auto;
    overflow-x: hidden;
  }

  .page-shell {
    place-items: center;
    padding: 2rem 1.2rem;
  }

  .logo-frame {
    width: min(58vw, 210px);
    margin-bottom: 2.3rem;
  }

  h1 {
    font-size: clamp(0.86rem, 4.1vw, 1.05rem);
    letter-spacing: 0.18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}