:root {
  --page-gutter: clamp(24px, 5vw, 72px);
  --header-height: 72px;
  --grid-size: 64px;
  --ring-line: rgba(151, 164, 184, 0.28);
  --ring-shadow: rgba(5, 7, 10, 0.72);
  --ring-opacity: 0.62;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink-1000);
}

body {
  position: relative;
  min-height: 100svh;
  margin: 0;
  overflow: hidden;
  background: var(--ink-1000);
  color: var(--fg);
  isolation: isolate;
}

body::after {
  position: fixed;
  z-index: -1;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0.1), var(--ink-1000) 92%);
  content: "";
  pointer-events: none;
}

.grid-bg {
  position: fixed;
  z-index: -3;
  inset: 0;
  background-image:
    linear-gradient(rgba(151, 164, 184, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 164, 184, 0.045) 1px, transparent 1px);
  background-position: center;
  background-size: var(--grid-size) var(--grid-size);
  -webkit-mask-image: radial-gradient(ellipse at 35% 50%, black 0%, transparent 72%);
  mask-image: radial-gradient(ellipse at 35% 50%, black 0%, transparent 72%);
  pointer-events: none;
}

.site-header,
.site-footer,
.hero {
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 0 var(--page-gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  text-decoration: none;
}

.brand:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 6px;
}

.brand img {
  display: block;
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.brand-name,
.hero-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
}

.brand-name {
  font-size: 16px;
  line-height: 1;
}

.brand-dim {
  color: var(--slate-400);
}

.hero {
  display: grid;
  align-items: center;
  min-height: calc(100svh - var(--header-height) - 57px);
  padding: 0 var(--page-gutter);
}

.hero-name {
  width: min(900px, 70vw);
  margin: 0;
  font-size: clamp(3.75rem, 10vw, 9.5rem);
  line-height: 0.94;
  animation: page-in var(--dur-slowest) var(--ease-out) both;
}

.ring-field {
  position: fixed;
  z-index: 0;
  top: 50%;
  right: -19vw;
  width: min(78vw, 760px);
  aspect-ratio: 1;
  color: var(--ring-line);
  opacity: var(--ring-opacity);
  transform: translateY(-47%);
  pointer-events: none;
}

.ring-field svg {
  display: block;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 0.9;
}

.ring-field svg line {
  stroke-dasharray: 2 13;
}

.ring-point {
  fill: var(--accent);
  stroke: none;
}

.ring-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 29%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 14px 28px var(--ring-shadow));
}

.ring-core img {
  display: block;
  width: 100%;
  height: auto;
}

.site-footer {
  display: flex;
  align-items: center;
  min-height: 57px;
  padding: 16px var(--page-gutter) 20px;
  border-top: 1px solid var(--border);
  color: var(--fg-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
}

.not-found {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: var(--page-gutter);
  text-align: center;
}

.not-found img {
  width: 72px;
  height: 72px;
  margin-bottom: var(--space-6);
}

.not-found-code {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: var(--tracking-caps);
}

.not-found h1 {
  margin: var(--space-3) 0 var(--space-6);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, var(--fs-44));
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
}

.not-found a {
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: var(--fs-14);
}

.not-found a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 6px;
}

@keyframes page-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 64px;
    --grid-size: 48px;
  }

  .hero {
    min-height: calc(100svh - var(--header-height) - 57px);
    padding-bottom: 18vh;
  }

  .hero-name {
    width: min(100%, 540px);
    font-size: clamp(2.5rem, 13vw, 6rem);
  }

  .ring-field {
    top: 53%;
    right: -46vw;
    width: 125vw;
    opacity: 0.52;
  }
}

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