* {
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
  appearance: none;
  box-sizing: border-box;
}

::selection {
  color: #fff;
  background: #000c;
}

html {
  font-size: 15px;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  text-rendering: optimizeLegibility;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  overscroll-behavior: contain;
  cursor: crosshair;
}
body {
  font: 1rem/1.5 var(--font-sans);
  font-feature-settings: var(--font-feature);
  color: var(--color-n00);
  background: #fff;
  transition: .2s ease-in;
  transition-property: color, background, opacity;
}
h1, h2, h3, h4, h5, h6 {
  font-size: 1rem;
  font-weight: 500;
}

.loading {
  opacity: 0;
  pointer-events: none;
}
#page {
  display: grid;
  grid-template-rows: 4rem 1fr;
  height: 100dvh;
}
#page > header {
  position: sticky;
  top: 0;
  padding: 1rem 1.5rem;
  background: var(--color-n10);
  box-shadow: 0 1px var(--color-n07), 0 0 1rem var(--color-n07);
  z-index: 9;
}
header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}
header span {
  width: 2rem;
  height: 2rem;
}
header strong {
  font-weight: 600;
  color: var(--color-p05);
}
header h1 {
  margin-inline-end: auto;
  font-size: 1.25rem;
}
main {
  display: flex;
  width: 100%;
  transition: var(--transition);
  transition-property: opacity;
}
section {
  flex: 1;
  position: relative;
  display: grid;
  grid-template-rows: 1.5rem 1fr;
  padding: 1.5rem 1.5rem 0;
  box-shadow: 1px 0 var(--color-n07);
  overflow: hidden;
  transition: var(--transition);
  transition-property: flex, padding, width, opacity, transform;
  z-index: 6;
}
section::after, section header::after {
  content: "";
  display: block;
  position: absolute;
  left: 1px;
  right: 1px;
  bottom: -2rem;
  height: 2rem;
  background: linear-gradient(to bottom, var(--color-n10) 10%, transparent 100%);
  pointer-events: none;
}
section::after {
  bottom: 0;
  background: linear-gradient(to top, var(--color-n10) 10%, transparent 100%);
}
section header + * {
  padding: 1.5rem 0;
  height: var(--height);
  overflow: hidden auto;
}
section h2 {
  font-weight: 400;
  color: var(--color-n06);
  transition: var(--transition);
  transition-property: color;
}
section:hover h2 {
  color: var(--color-n03);
}
section:focus-within h2 {
  color: var(--color-p07);
}
section h3 {
  margin: 1rem 0 .5rem;
}
textarea {
  font: 1rem/1.5 var(--font-mono);
  resize: none;
}
pre {
  font-family: var(--font-mono);
}
code {
  padding: 0 .3rem;
  font: .9rem var(--font-mono);
  color: var(--color-n02);
  background: var(--color-n08);
  border-radius: 2px;
}
button {
  position: relative;
  z-index: 6;
}
button, label {
  display: flex;
  padding: .5rem;
  color: var(--color-n02);
  background: transparent;
  border: 1px solid var(--color-n06);
  border-radius: .25rem;
  cursor: pointer;
  transition: var(--transition);
  transition-property: color, background, opacity;
}
button:hover, label:hover {
  background: var(--color-n09);
}
button.active {
  color: var(--color-p06);
  background: var(--color-n09);
}
path {
  transition: var(--transition);
  transition-property: transform, opacity;
}
[aria-label="copy"] path:last-child {
  opacity: 0;
}
[aria-label="copy"].active path:last-child {
  opacity: 1;
}
section:has(pre:empty) button {
  opacity: 0;
}
input {
  position: absolute;
  visibility: hidden;
  pointer-events: none;
}
ul {
  padding: 0 0 0 1rem;
  list-style: "- ";
}
li::marker {
  color: var(--color-p06);
}
svg {
  display: inline;
  vertical-align: -10%;
  transform-origin: 50% 53.7%;
  transition: var(--transition);
  transition-property: transform;
}
a {
  color: var(--color-p06);
  transition: var(--transition);
  transition-property: color;
}
a:hover svg {
  transform: rotate(216deg);
}

:checked + #page label path:last-child {
  transform: translateX(2px);
}
@media (min-width: 1180px) {
  :checked + #page section:last-child {
    flex: 0;
    padding-inline: 0;
    width: 0;
    opacity: 0;
  }
}

:root {
  --height: calc(100dvh - 7rem);
  --font-sans: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", sans-serif;
  --font-feature: "ss01", "cv06", "cv11";
  --ch: 200;
  --color-n00: hsl(240 10  20);
  --color-n01: hsl(240 10  30);
  --color-n02: hsl(240  5  40);
  --color-n03: hsl(240  5  50);
  --color-n04: hsl(240  5  60);
  --color-n05: hsl(240  5  70);
  --color-n06: hsl(240 10  80);
  --color-n07: hsl(240 10  90);
  --color-n08: hsl(240 15  94);
  --color-n09: hsl(240 15  98);
  --color-n10: hsl(240 20 100);
  --color-n1a: hsl(240 20 100 / 10);
  --color-p0a: hsl(var(--ch) 90 50 / .1);
  --color-p05: hsl(var(--ch) 90 50);
  --color-p06: hsl(var(--ch) 80 60);
  --color-p07: hsl(var(--ch) 80 70);
  --color-p08: hsl(var(--ch) 80 80);
  --color-p09: hsl(var(--ch) 70 90);
  --color-p10: hsl(var(--ch) 70 95);
  --transition: .2s ease-in;
}

@media (max-width: 1179px) {
  :root {
    --height: calc(50dvh - 4.5rem);
  }
  body {
    overflow: hidden;
  }
  main {
    display: block;
  }
  section {
    padding: 1rem 1.5rem 0;
    box-shadow: 0 1px var(--color-n07);
  }
  section:last-child {
    position: absolute;
    top: 4rem;
    right: 0;
    height: calc(100dvh - 4rem);;
    background: var(--color-n10);
  }
  section header + * {
    padding: 1rem 0;
  }
  section article {
    height: auto;
  }
  section h2 {
    color: var(--color-n02);
  }
  textarea, pre {
    font-size: .9rem;
  }
  :checked + #page section:last-child {
    transform: translateX(100%);
  }
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: local("InterVariable"), local("Inter Variable"), url("https://rsms.me/inter/font-files/InterVariable.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  src: url("https://fonts.gstatic.com/s/jetbrainsmono/v23/tDbV2o-flEEny0FZhsfKu5WU4xD7OwE.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}