:root {
  color-scheme: light dark;
  --page: oklch(96.8% 0.012 132);
  --surface: oklch(99% 0.006 132);
  --surface-raised: oklch(93.5% 0.014 132);
  --ink: oklch(20% 0.018 132);
  --ink-muted: oklch(42% 0.018 132);
  --ink-faint: oklch(58% 0.016 132);
  --line: oklch(82% 0.02 132);
  --line-strong: oklch(64% 0.035 132);
  --accent: oklch(47% 0.075 132);
  --accent-dark: oklch(30% 0.055 132);
  --code-bg: oklch(18% 0.018 132);
  --code-ink: oklch(92% 0.012 132);
  --code-muted: oklch(72% 0.03 132);
  --focus: oklch(56% 0.11 132);
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --font-body: "Iosevka Aile", "Input Sans", "Avenir Next", "Segoe UI", sans-serif;
  --font-code: "Berkeley Mono", "Iosevka", "CommitMono", "SFMono-Regular", ui-monospace, monospace;
  font-family: var(--font-body);
  font-kerning: normal;
  font-size: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: oklch(15.5% 0.012 132);
    --surface: oklch(20.5% 0.014 132);
    --surface-raised: oklch(25% 0.018 132);
    --ink: oklch(91% 0.014 132);
    --ink-muted: oklch(72% 0.016 132);
    --ink-faint: oklch(55% 0.018 132);
    --line: oklch(32% 0.018 132);
    --line-strong: oklch(45% 0.028 132);
    --accent: oklch(70% 0.075 132);
    --accent-dark: oklch(78% 0.07 132);
    --code-bg: oklch(12% 0.012 132);
    --code-ink: oklch(88% 0.014 132);
    --code-muted: oklch(66% 0.028 132);
    --focus: oklch(78% 0.09 132);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  color: var(--ink);
  background:
    linear-gradient(90deg, color-mix(in oklch, var(--line) 40%, transparent) 1px, transparent 1px),
    linear-gradient(0deg, color-mix(in oklch, var(--line) 35%, transparent) 1px, transparent 1px),
    var(--page);
  background-size: 5rem 5rem;
}

body,
button,
textarea {
  font: 1rem/1.5 var(--font-body);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.375rem;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
  font-weight: 720;
  text-transform: lowercase;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

button {
  width: 100%;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button:not(:disabled):hover,
.link-button:hover {
  border-color: var(--accent-dark);
  background: var(--surface-raised);
}

button:not(:disabled):active,
.link-button:active {
  transform: translateY(1px);
}

:focus-visible {
  outline: 3px solid color-mix(in oklch, var(--focus) 82%, transparent);
  outline-offset: 3px;
}

textarea {
  width: 100%;
  min-height: 8rem;
  resize: vertical;
  padding: var(--space-sm);
  border: 1px solid var(--line);
  border-radius: 0.375rem;
  color: var(--ink);
  background: var(--surface);
  font-family: var(--font-code);
  font-size: 0.875rem;
  line-height: 1.5;
}

textarea::placeholder {
  color: var(--ink-muted);
}

pre {
  margin: 0;
}

code,
pre {
  font-family: var(--font-code);
  font-variant-ligatures: none;
  font-variant-numeric: tabular-nums;
}

.masthead,
.site-shell,
.footer {
  width: min(72rem, calc(100vw - 2rem));
  margin-inline: auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-md);
}

.brand,
nav,
.repo-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: var(--space-xs);
  font-weight: 820;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border: 1px solid var(--ink);
  border-radius: 0.25rem;
  color: var(--surface);
  background: var(--ink);
  font-family: var(--font-code);
  font-size: 0.9rem;
  line-height: 1;
}

nav {
  gap: var(--space-2xs);
}

nav a {
  min-height: 2.5rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.25rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

nav a:hover {
  color: var(--ink);
  background: var(--surface-raised);
}

.site-shell {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-xl) var(--space-3xl);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-lg) var(--space-xl);
  border-block: 1px solid var(--line);
}

.intro-copy {
  display: grid;
  gap: var(--space-sm);
  max-width: 46rem;
}

.kicker,
.label,
.panel-index,
.token-label,
.status,
.file-label {
  font-family: var(--font-code);
  font-variant-numeric: tabular-nums;
}

.kicker,
.label,
.token-label {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 720;
  text-transform: lowercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 18ch;
  font-size: clamp(2.4rem, 7.5vw, 5.6rem);
  font-weight: 860;
  line-height: 0.93;
  text-transform: lowercase;
}

h2 {
  font-size: 1.25rem;
  font-weight: 820;
  line-height: 1.15;
  text-transform: lowercase;
}

h3 {
  font-size: 1rem;
  font-weight: 820;
  line-height: 1.2;
  text-transform: lowercase;
}

.intro-lede,
.section-note p,
.command-strip p,
.briefing p,
.panel-heading p,
.capabilities p {
  color: var(--ink-muted);
}

.intro-lede {
  max-width: 58ch;
  font-size: 1.125rem;
  line-height: 1.6;
}

.repo-actions {
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.link-button.primary {
  border-color: var(--accent-dark);
  color: var(--surface);
  background: var(--accent-dark);
}

.link-button.primary:hover {
  color: var(--surface);
  background: var(--ink);
}

.install-block {
  display: grid;
  gap: var(--space-md);
  max-width: 46rem;
  padding: var(--space-md);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: color-mix(in oklch, var(--surface) 82%, transparent);
}

.install-block pre,
.command-strip pre,
.progress {
  overflow-x: auto;
  border-radius: 0.375rem;
  color: var(--code-ink);
  background: var(--code-bg);
  font-size: 0.875rem;
  line-height: 1.6;
}

.install-block pre,
.command-strip pre {
  padding: var(--space-md);
}

.install-block pre code,
.command-strip pre code {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-md);
}

.capabilities article {
  display: grid;
  gap: var(--space-xs);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line-strong);
}

.capabilities span {
  color: var(--ink-faint);
  font-family: var(--font-code);
  font-size: 0.78rem;
}

.briefing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr));
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  border-block: 1px solid var(--line);
}

.briefing article {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
  max-width: 42rem;
}

.section-note {
  display: grid;
  gap: var(--space-xs);
  max-width: 50rem;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr));
  gap: var(--space-lg);
}

.demo-panel {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
  padding: var(--space-md);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: color-mix(in oklch, var(--surface) 92%, transparent);
}

.panel-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-sm);
  min-height: 4.75rem;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--line);
}

.panel-index {
  display: inline-grid;
  place-items: center;
  width: 3.25rem;
  height: 1.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.25rem;
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 760;
}

.token-label {
  display: block;
  margin-top: var(--space-xs);
}

.file-label,
.status {
  min-height: 1.5rem;
  color: var(--ink-muted);
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

.progress {
  min-height: 5rem;
  padding: var(--space-sm);
  white-space: pre;
}

.command-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--space-lg);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--line);
}

.command-strip article {
  display: grid;
  gap: var(--space-sm);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: space-between;
  padding-block: var(--space-lg) max(var(--space-lg), env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.footer a {
  color: var(--accent-dark);
  font-weight: 760;
}

@media (min-width: 46rem) {
  .intro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }

  .install-block {
    grid-column: 1 / -1;
    grid-template-columns: minmax(12rem, 0.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 64rem) {
  .site-shell {
    gap: var(--space-3xl);
  }

  .demo-panel {
    padding: var(--space-lg);
  }
}

@media (max-width: 42rem) {
  .masthead {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }

  nav a {
    min-height: 2.75rem;
  }

  .repo-actions,
  .link-button {
    width: 100%;
  }

  .panel-heading,
  .command-strip {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}