astro/examples/blog/public/blog.css

:root {
  --font-fallback: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji;
  --font-body: 'IBM Plex Sans', var(--font-fallback);
  --font-mono: 'IBM Plex Mono', Consolas, 'Andale Mono WT', 'Andale Mono', 'Lucida Console', 'Lucida Sans Typewriter', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono',
    'Liberation Mono', 'Nimbus Mono L', Monaco, 'Courier New', Courier, monospace;

  --color-white: #fff;
  --color-black: #000014;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  --color-blue: #3894ff;
  --color-blue-rgb: 56, 148, 255;
  --color-green: #17c083;
  --color-green-rgb: 23, 192, 131;
  --color-orange: #ff5d01;
  --color-orange-rgb: 255, 93, 1;
  --color-purple: #882de7;
  --color-purple-rgb: 136, 45, 231;
  --color-red: #ff1639;
  --color-red-rgb: 255, 22, 57;
  --color-yellow: #ffbe2d;
  --color-yellow-rgb: 255, 190, 45;
}

:root {
  color-scheme: light;
  --theme-accent: var(--color-orange);
  --theme-accent-rgb: var(--color-orange-rgb);
  --theme-accent-opacity: 0.1;
  --theme-divider: var(--color-gray-100);
  --theme-text: var(--color-gray-800);
  --theme-text-light: var(--color-gray-600);
  --theme-text-lighter: var(--color-gray-400);
  --theme-bg: var(--color-white);
  --theme-bg-offset: var(--color-gray-100);
  --theme-bg-accent: rgba(var(--theme-accent-rgb), var(--theme-accent-opacity));
  --theme-code-inline-bg: var(--color-gray-100);
  --theme-code-text: var(--color-gray-100);
  --theme-code-bg: var(--color-gray-700);
}

body {
  background: var(--theme-bg);
  color: var(--theme-text);
}

:root.theme-dark {
  color-scheme: dark;
  --theme-accent-opacity: 0.3;
  --theme-divider: var(--color-gray-900);
  --theme-text: var(--color-gray-200);
  --theme-text-light: var(--color-gray-400);
  --theme-text-lighter: var(--color-gray-600);
  --theme-bg: var(--color-black);
  --theme-bg-offset: var(--color-gray-900);
  --theme-code-inline-bg: var(--color-gray-800);
  --theme-code-text: var(--color-gray-200);
  --theme-code-bg: var(--color-gray-900);
}

::selection {
  color: var(--theme-accent);
  background-color: rgba(var(--theme-accent-rgb), var(--theme-accent-opacity));
}

* {
  box-sizing: border-box;
  margin: 0;
}

:root {
  --user-font-scale: 1rem - 16px;
  --max-width: calc(100% - 2rem);
}

@media (min-width: 50em) {
  :root {
    --max-width: 40em;
  }
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  font-size: clamp(0.875rem, 0.4626rem + 1.0309vw + var(--user-font-scale), 1.125rem);
  line-height: 1.625;
}

body {
  width: 100%;
  display: grid;
  --gutter: 0.5rem;
  --doc-padding: 2rem;
}

.layout {
  display: grid;
  grid-auto-flow: column;
  grid-template-columns: minmax(var(--gutter), 1fr) minmax(0, var(--max-width)) minmax(var(--gutter), 1fr);
  gap: 1em;
}

.layout > article {
  grid-column: 2;
}

nav ul {
  list-style: none;
  padding: 0;
}

/* Typography */
:is(h1, h2, h3, h4, h5, h6) {
  margin-bottom: 1.38rem;
  font-weight: 400;
  line-height: 1.3;
}

:is(h1, h2) {
  max-width: 40ch;
}

:is(h2, h3):not(:first-child) {
  margin-top: 3rem;
}

h1 {
  font-size: clamp(2.488rem, 1.924rem + 1.41vw, 3.052rem);
}

h2 {
  font-size: clamp(2.074rem, 1.707rem + 0.9175vw, 2.441rem);
}

h3 {
  font-size: clamp(1.728rem, 1.503rem + 0.5625vw, 1.953rem);
}

h4 {
  font-size: clamp(1.44rem, 1.317rem + 0.3075vw, 1.563rem);
}

h5 {
  font-size: clamp(1.2rem, 1.15rem + 0.125vw, 1.25rem);
}

p {
  color: var(--theme-text-light);
}

small,
.text_small {
  font-size: 0.833rem;
}

a {
  color: var(--theme-accent);
  font-weight: 400;
  text-underline-offset: 0.08em;
  text-decoration: none;
  align-items: center;
  gap: 0.5rem;
}

a > code:not([class*='language']) {
  position: relative;
  color: var(--theme-accent);
  background: transparent;
  text-underline-offset: var(--padding-block);
}

a > code:not([class*='language'])::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  background: var(--theme-accent);
  opacity: var(--theme-accent-opacity);
  border-radius: var(--border-radius);
}

a:hover,
a:focus {
  text-decoration: underline;
}

a:focus {
  outline: 2px solid currentColor;
  outline-offset: 0.25em;
}

strong {
  font-weight: 600;
  color: inherit;
}

/* Supporting Content */

code:not([class*='language']) {
  --border-radius: 3px;
  --padding-block: 0.2rem;
  --padding-inline: 0.33rem;

  font-family: var(--font-mono);
  font-size: 0.85em;
  color: inherit;
  background-color: var(--theme-code-inline-bg);
  padding: var(--padding-block) var(--padding-inline);
  margin: calc(var(--padding-block) * -1) -0.125em;
  border-radius: var(--border-radius);
}

pre > code:not([class*='language']) {
  background-color: transparent;
  padding: 0;
  margin: 0;
  border-radius: 0;
  color: inherit;
}

pre {
  position: relative;
  background-color: var(--theme-code-bg);
  color: var(--theme-code-text);
  --padding-block: 1rem;
  --padding-inline: 2rem;
  padding: var(--padding-block) var(--padding-inline);
  padding-right: calc(var(--padding-inline) * 2);
  margin-left: calc(50vw - var(--padding-inline));
  transform: translateX(-50vw);

  line-height: 1.414;
  width: calc(100vw + (var(--padding-inline) * 2));
  max-width: calc(100% + (var(--padding-inline) * 2));
  overflow-y: hidden;
  overflow-x: auto;
}

@media (min-width: 37.75em) {
  pre {
    --padding-inline: 1.25rem;
    border-radius: 8px;
  }
}

.flex {
  display: flex;
  align-items: center;
}

img.cover {
  width: 100%;
  max-height: 50vh;
  object-fit: cover;
}

blockquote {
  font-size: 1.5rem;
  --padding-block: 1rem;
  --padding-inline: 1.25rem;
  --color: var(--theme-divider);

  display: flex;
  flex-direction: column;

  padding: var(--padding-block) var(--padding-inline);
  margin-left: calc(var(--padding-inline) * -1);
  margin-right: calc(var(--padding-inline) * -1);

  background: transparent;
  border-left: calc(var(--padding-inline) / 2) solid var(--color);
  border-radius: 0;
}

blockquote .source {
  font-weight: 500;
  color: var(--color);
  font-size: 1rem;
}