:root {
  color-scheme: dark;
  background: #05080f;
  color: #f8fafc;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
}

body {
  margin: 0;
  background: #05080f;
  color: #f8fafc;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 5;
  padding: 0.7rem 1rem;
  background: #f8fafc;
  color: #05080f;
  transform: translateY(-200%);
}

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

.landing-shell {
  width: min(100%, 1440px);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
  border-inline: 1px solid #1e293b;
  overflow: hidden;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.4rem clamp(1.25rem, 4vw, 4rem);
  color: #9ca3af;
  font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-header {
  border-bottom: 1px solid #1e293b;
}

.site-footer {
  border-top: 1px solid #1e293b;
}

.brand {
  color: #f8fafc;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  text-transform: none;
}

.landing {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 560px;
  padding: clamp(4rem, 9vw, 8rem) clamp(1.25rem, 8vw, 8rem);
  isolation: isolate;
}

.landing::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(color-mix(in srgb, #1e293b 48%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, #1e293b 48%, transparent) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black, transparent 70%);
}

.accent {
  position: absolute;
  z-index: -1;
  width: min(52vw, 680px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: color-mix(in srgb, #3b82f6 14%, transparent);
  filter: blur(90px);
}

.landing-copy {
  width: min(100%, 850px);
  text-align: center;
}

h1 {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(4.5rem, 14vw, 11rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.9;
}

.short-line {
  max-width: 560px;
  margin: 2rem auto 0;
  color: #f8fafc;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.65;
}

.introduction {
  max-width: 640px;
  margin: 0.8rem auto 0;
  color: #9ca3af;
  font-size: 0.95rem;
  line-height: 1.65;
}

.scope-list {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.scope-list li {
  padding: 0.55rem 0.75rem;
  border: 1px solid #1e293b;
  color: #93c5fd;
  font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  font-size: 0.64rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 52px;
  margin-top: 2rem;
  padding: 0.9rem 1.25rem;
  background: #3b82f6;
  color: white;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: color-mix(in srgb, #3b82f6 84%, white);
  transform: translateY(-2px);
}

.layout-proof .landing-copy {
  text-align: left;
}

.layout-proof .short-line,
.layout-proof .introduction {
  margin-inline: 0;
}

.layout-proof .scope-list {
  justify-content: flex-start;
}

.layout-system .accent {
  transform: translateX(22%);
}

.layout-studio .accent {
  transform: translate(-22%, 8%);
}

@media (max-width: 680px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .landing {
    min-height: 480px;
  }

  .layout-proof .landing-copy {
    text-align: center;
  }

  .layout-proof .landing-copy p {
    margin-inline: auto;
  }

  .scope-list,
  .layout-proof .scope-list {
    align-items: center;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}