:root {
  /* Typography */
  --spacing-base: 1.3em;
  --font-family-mono: "Iosevka Web", "Iosevka", "Iosevka Mono", "Iosevka Nerd Font Mono", "Fira Code", "SF Mono", "Roboto Mono", "Liberation Mono", Menlo, Consolas, monospace;
  --font-size-base: 1.0em;
  --font-size-small: 0.9em;
  --font-size-code: 0.90em;

  /* Spacing */
  --spacing-xs: calc(var(--spacing-base) * 0.25);
  --spacing-sm: calc(var(--spacing-base) * 0.5);
  --spacing-ok: calc(var(--spacing-base) * 0.75);
  --spacing-md: var(--spacing-base);
  --spacing-lg: calc(var(--spacing-base) * 2);


  /* Layout */
  --container-width: 70ch;
  --pre-border-radius: 0.75rem;
  --inline-border-radius: 0.375rem;
  --gap-base: 1em;
  --gap-small: 0.5em;
}


/* Colors */
:root  {
  --color-bg-primary: hsl(0, 0%, 99%);
  --color-bg-secondary: hsl(0, 0%, 92.3%);
  --color-text-primary: hsl(32, 100%, 30%);
  --color-text-muted: hsl(0, 0%, 43.5%);
  --color-text-less-muted: hsl(0, 0%, 23.5%);
  --color-text-more-muted: hsl(32, 30%, 53.5%);
  --color-text-code: hsl(0, 0%, 20%);
  --color-selection-bg: hsl(0, 0%, 85.8%);
}
:root[data-theme="dark"]  {
  --color-bg-primary: hsl(236, 30%, 8%);
  --color-bg-secondary: hsl(236, 40%, 20%);
  --color-text-primary: hsl(32, 100%, 66.5%);
  --color-text-muted: hsl(32, 100%, 81.5%);
  --color-text-less-muted: hsl(32, 100%, 83.5%);
  --color-text-more-muted: hsl(32, 65%, 68.5%);
  --color-text-code: var(--color-text-muted);
  --color-selection-bg: hsl(0, 0%, 14.2%);
}
:root  {
  --color-icon-fill: var(--color-text-muted);
}


/* Common component styles */
.no-scrollbar {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}

.no-scrollbar::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.list-unstyled {
  list-style: none;
  margin-left: 0;
}

.text-muted {
  color: var(--color-text-muted);
}

.no-underline {
  text-decoration: none;
  border-bottom: none;
}

::selection {
  background: var(--color-selection-bg);
  color: var(--color-text-primary);
}

* {
  margin: 0;
  padding: 0;
  font: inherit;
  color: inherit;
  box-sizing: border-box;
}

ul {
  list-style-type: disc;
  margin-left: 1.5rem;
}

ol {
  list-style-type: decimal;
  margin-left: 2.0rem;
}

ol > li::marker {
  color: var(--color-text-primary);
}

strong {
  color: var(--color-text-primary);
}

html {
  margin: 0 0 0 calc(100vw - 100%);
  -webkit-text-size-adjust: 100%;
  height: 100%;
}

body {
  font: var(--font-size-base) / var(--spacing-base) var(--font-family-mono);
  color: var(--color-text-less-muted);
  background: var(--color-bg-primary);
  min-height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: minmax(0, var(--container-width));
  justify-content: center;
  padding: var(--spacing-ok);
  gap: var(--spacing-sm);
}

.please-subscribe {
  justify-content: center;
  margin: var(--spacing-sm) var(--spacing-base);
  border-top: 1px solid var(--color-text-more-muted);
  border-bottom: 1px solid var(--color-text-more-muted);
}

a {
  text-decoration: none;
  border-bottom: 1px dotted;
}

a:hover {
  border-bottom: 1px solid;
}

p {
  hyphens: auto;
}

p,
pre {
  margin: var(--spacing-base) 0;
}

[data-theme="dark"] h1 {
  color: var(--color-text-primary);
}

h1 {
  font-size: 2em;
  font-weight: bold;
  margin: var(--spacing-base) 0;
  line-height: 1.0;
}

h1.title {
  margin: var(--spacing-xs) 0;
}

h2.subtitle {
  font-weight: normal;
  /* Grayish color */
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.0;
}

h2 {
  font-size: 1.5em;
  font-weight: normal;
  margin: var(--spacing-base) 0 0 0;
  line-height: 1.2;
  color: var(--color-text-less-muted);
}

h3,
h4,
h5 {
  margin: var(--spacing-base) 0;
  font-weight: bold;
  color: var(--color-text-primary);
}

time {
  color: var(--color-text-more-muted);
}

span.author {
  font-style: italic;
  color: var(--color-text-muted);
}

footer {
  padding: calc(var(--spacing-base) * 2) 0;
  text-align: center;
}
footer p {
  margin-bottom: 0;
}

pre {
  background: var(--color-bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--pre-border-radius);
  white-space: pre;
  word-wrap: break-word;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-code);
  color: var(--color-text-code);
  overflow: scroll;
  display: block;
}

pre::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

p > code,
li > code,
h1 > code,
h2 > code,
h3 > code,
h4 > code,
h5 > code {
  background: var(--color-bg-secondary);
  border-radius: var(--inline-border-radius);
  padding: 0.1em 0.3em;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-code);
  color: var(--color-text-code);
  white-space: nowrap;
}

.terms-list {
  padding-bottom: var(--spacing-base);
}

.terms-list ul {
  list-style-type: none;
  margin-left: 0;
}

.terms-list ul li {
  display: inline-block;
  font-style: italic;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  padding: 0 3px;
}

/* Path navigation styles */
.path-nav {
  font-family: var(--font-family-mono);
  padding: var(--spacing-base) 0;
  white-space: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
  width: 100%;
  display: flex;
  /* Max separation between flex items */
  justify-content: space-between;
}

.path-nav::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.path-nav ol {
  display: flex;
  flex-wrap: nowrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.path-nav li {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.path-nav li.current {
  max-width: none; /* Allow full width for current page */
}

.path-nav li a {
  text-decoration: none;
  border-bottom: none;
  padding: 0 0.25em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.path-nav li.current a {
  color: #000;
}

.path-nav a:hover {
  text-decoration: underline;
}

/* Time list */
.time-list ul {
  list-style: none;
  margin-left: 0;
}

.time-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--gap-base);
  align-items: start;
  padding: 0 0;
}

@media (max-width: 600px) {
  .time-list li {
    gap: var(--gap-small);
  }
}

/* Main menu navigation styles */
.terminal-nav {
  font-family: var(--font-family-mono);
  margin-top: calc(var(--spacing-base) * 2);
  padding-top: var(--spacing-base);
  display: flex;
  justify-content: space-around;
  align-items: baseline
}

.terminal-nav a {
  color: var(--color-text-more-muted);
  display: inline-block;
}

.terminal-nav nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1em;
}

/* Image styles */
img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: var(--spacing-base) auto;
  border-radius: var(--pre-border-radius);
}

figure {
  margin: var(--spacing-base) 0;
  text-align: center;
}

figure img {
  margin: 0 auto;
}

figcaption {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
  margin-top: calc(var(--spacing-base) / 2);
}

/* Table styles */
table {
  width: 100%;
  margin: var(--spacing-base) 0;
  border-collapse: collapse;
}

thead th,
th {
  font-weight: bold;
  text-align: center;
  padding: var(--spacing-sm);
}

td {
  padding: var(--spacing-sm);
}

/* Typography emphasis */
strong {
  font-weight: bold;
  color: var(--color-text-primary);
}

em {
  font-style: italic;
}

/* Blockquote styles */
blockquote {
  margin: 1.5em 0px;
  padding: 0.5em 16px;
  border-left: 5px solid var(--color-text-more-muted);
}


blockquote > :first-child {
  margin-top: 0;
}

blockquote > :last-child {
  margin-bottom: 0;
}

/* Table of Contents */
.toc {
  margin: var(--spacing-base) 0;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  border-radius: var(--pre-border-radius);
  box-shadow: 0 1px 2px 0 var(--color-border);
}

.toc .toc-content a {
  text-decoration: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-small)
}

.toc .toc-content ol li {
  list-style-type: disc !important;
}

/* https://github.com/argyleink/gui-challenges/tree/main/theme-switch */
:where(html) {
  --ease-elastic-3: var(--ease-elastic-out-3);
  --ease-elastic-4: var(--ease-elastic-out-4);
  --ease-3: cubic-bezier(.25, 0, .3, 1);
  --ease-out-5: cubic-bezier(0, 0, 0, 1);
}

.theme-toggle {
  --size: 1.5rem;

  background: none;
  border: none;
  padding-top: 2px;

  inline-size: var(--size);
  block-size: var(--size);
  aspect-ratio: 1;
  border-radius: 50%;

  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;

  outline-offset: 5px;

  & > svg {
    inline-size: 100%;
    block-size: 100%;
    stroke-linecap: round;
  }
}

.sun-and-moon > :is(.moon, .sun, .sun-beams) {
  transform-origin: center;
}

.sun-and-moon > :is(.moon, .sun) {
  fill: var(--color-icon-fill);
}

.sun-and-moon > .sun-beams {
  stroke: var(--color-icon-fill);
  stroke-width: 2px;
}

[data-theme="dark"] .sun-and-moon > .sun {
  transform: scale(1.75);
}

[data-theme="dark"] .sun-and-moon > .sun-beams {
  opacity: 0;
}

[data-theme="dark"] .sun-and-moon > .moon > circle {
  transform: translateX(-7px);
}

@supports (cx: 1) {
  [data-theme="dark"] .sun-and-moon > .moon > circle {
    cx: 17;
    transform: translateX(0);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .sun-and-moon > .sun {
    transition: transform .5s var(--ease-elastic-3);
  }

  .sun-and-moon > .sun-beams {
    transition: transform .5s var(--ease-elastic-4), opacity .5s var(--ease-3);
  }

  .sun-and-moon .moon > circle {
    transition: transform .25s var(--ease-out-5);
  }

  @supports (cx: 1) {
    .sun-and-moon .moon > circle {
      transition: cx .25s var(--ease-out-5);
    }
  }

  [data-theme="dark"] .sun-and-moon > .sun {
    transition-timing-function: var(--ease-3);
    transition-duration: .25s;
    transform: scale(1.75);
  }

  [data-theme="dark"] .sun-and-moon > .sun-beams {
    transition-duration: .15s;
    transform: rotateZ(-25deg);
  }

  [data-theme="dark"] .sun-and-moon > .moon > circle {
    transition-duration: .5s;
    transition-delay: .25s;
  }
}