:root {
  color-scheme: light dark;
  --paper: #f7f7f6;
  --surface: #ffffff;
  --surface-quiet: #eeeeeb;
  --ink: #1a1714;
  --ink-soft: #45403a;
  --muted: #6f6960;
  --line: #d9d7d1;
  --line-soft: #e9e7e2;
  --accent: #a8481a;
  --accent-ink: #ffffff;
  --accent-soft: #faeee4;
  --good: #4a6b2f;
  --danger: #a3341f;
  --code-string: #7a5230;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  --page: 72rem;
  --reading: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14120f;
    --surface: #1c1917;
    --surface-quiet: #241f1b;
    --ink: #f2ede5;
    --ink-soft: #cec6ba;
    --muted: #a3988b;
    --line: #38312a;
    --line-soft: #2b2621;
    --accent: #f0a35e;
    --accent-ink: #1a1714;
    --accent-soft: #2f2116;
    --good: #afd282;
    --danger: #ef8f74;
    --code-string: #d9b98a;
  }
}

:root[data-theme="dark"] {
  --paper: #14120f;
  --surface: #1c1917;
  --surface-quiet: #241f1b;
  --ink: #f2ede5;
  --ink-soft: #cec6ba;
  --muted: #a3988b;
  --line: #38312a;
  --line-soft: #2b2621;
  --accent: #f0a35e;
  --accent-ink: #1a1714;
  --accent-soft: #2f2116;
  --good: #afd282;
  --danger: #ef8f74;
  --code-string: #d9b98a;
}

:root[data-theme="light"] {
  --paper: #f7f7f6;
  --surface: #ffffff;
  --surface-quiet: #eeeeeb;
  --ink: #1a1714;
  --ink-soft: #45403a;
  --muted: #6f6960;
  --line: #d9d7d1;
  --line-soft: #e9e7e2;
  --accent: #a8481a;
  --accent-ink: #ffffff;
  --accent-soft: #faeee4;
  --good: #4a6b2f;
  --danger: #a3341f;
  --code-string: #7a5230;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--muted) var(--paper);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent) 60%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.button {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
}

.button svg {
  width: 1rem;
  height: 1rem;
  transition: transform 160ms ease-out;
}

.button:hover svg {
  transform: translateX(0.2rem);
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.button-primary:hover {
  background: color-mix(in srgb, var(--accent) 88%, var(--ink));
  color: var(--accent-ink);
}

.button-secondary {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 3px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

p {
  margin-block: 0 1.2rem;
}

code,
pre,
.mono {
  font-family: var(--mono);
}

code {
  padding: 0.08em 0.28em;
  border-radius: 4px;
  background: var(--surface-quiet);
  color: var(--ink);
  font-size: 0.88em;
}

.wrap {
  width: min(calc(100% - 2rem), var(--page));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-180%);
  padding: 0.55rem 0.8rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line-soft);
  background: var(--paper);
}

.site-bar {
  min-height: 4rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: max-content;
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 750;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  flex: none;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.9rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  min-width: 0;
}

.site-nav a {
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  color: var(--ink-soft);
  font-size: 0.86rem;
  text-decoration: none;
}

.site-nav a:hover {
  background: var(--surface-quiet);
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 700;
}

.theme-toggle {
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.theme-icon {
  width: 1rem;
  height: 1rem;
}

.theme-icon-moon,
:root[data-theme="dark"] .theme-icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-sun {
    display: none;
  }

  :root:not([data-theme="light"]) .theme-icon-moon {
    display: block;
  }
}

.signal-rule {
  position: relative;
  height: 2px;
  overflow: hidden;
  background: var(--line-soft);
}

.signal-rule::after {
  content: "";
  position: absolute;
  inset-block: 0;
  width: 12rem;
  background: var(--accent);
  animation: signal-scan 5s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes signal-scan {
  from { transform: translateX(-12rem); }
  to { transform: translateX(calc(100vw + 12rem)); }
}

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem 2rem;
}

.footer-brand {
  font-size: 0.88rem;
}

.footer-brand .brand-mark {
  width: 1.5rem;
  height: 1.5rem;
  font-size: 0.78rem;
}

.site-footer p {
  margin: 0.8rem 0 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  gap: 0.6rem 1rem;
}

@media (max-width: 700px) {
  .site-bar {
    gap: 0.4rem 0.75rem;
    padding-block: 0.65rem 0.5rem;
  }

  .site-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    width: 100%;
    gap: 0;
  }

  .site-nav a {
    min-width: 0;
    padding: 0.25rem 0;
    font-size: clamp(0.64rem, 2.8vw, 0.78rem);
    letter-spacing: -0.01em;
    text-align: center;
  }

  .theme-toggle {
    grid-column: 3;
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .signal-rule::after {
    width: 22%;
    animation: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .signal-rule,
  .skip-link {
    display: none;
  }

  body {
    background: #fff;
    color: #111;
  }

  a {
    color: inherit;
  }
}