knowledge/themes/book/assets/_variables.scss

$padding-1: 1px;
$padding-4: 0.25rem;
$padding-8: 0.5rem;
$padding-16: 1rem;

$font-size-base: 16px;
$font-size-12: 0.75rem;
$font-size-14: 0.875rem;
$font-size-16: 1rem;

// Grayscale
$white: #ffffff;
$gray-100: #f8f9fa;
$gray-200: #e9ecef;
$gray-300: #dee2e6;
$gray-400: #ced4da;
$gray-500: #adb5bd;
$gray-600: #868e96;
$gray-700: #495057;
$gray-800: #343a40;
$gray-900: #212529;
$black: #000;

$color-link: #004ed0;
$color-visited-link: #8440f1;
$color-dark-link: $gray-900;

$body-background: white;
$body-font-color: $gray-800;
$body-font-weight: 400;

$body-min-width: 20rem;
$container-max-width: 80rem;

$header-height: 3.5rem;
$menu-width: 18rem;
$toc-width: 14rem;

$sm-breakpoint: $menu-width + $body-min-width + 5;
$md-breakpoint: $sm-breakpoint + $toc-width;