blowfish/assets/css/main.css

/*! Blowfish | MIT License | https://github.com/nunocoracao/blowfish */

@config "../../tailwind.config.js";

@import "tailwindcss";
@import "./components/chroma.css" layer(utilities);
@import "./components/tabs.css" layer(utilities);
@import "./components/zen-mode.css";
@import "./components/gist.css";
@import "./components/a11y.css";
@import "./components/admonition.css" layer(components);

html:not(.dark) {
  color-scheme: light;
}

html.dark {
  color-scheme: dark;
}

body a,
body button {
  @apply transition-colors;
}

/* Staggered entrance for the landing homepage hero. Removed entirely when a
   visitor requests reduced motion. */
@keyframes landing-rise {
  from {
    opacity: 0;
    transform: translateY(0.9rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.landing-rise {
  animation: landing-rise 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.landing-rise-1 {
  animation-delay: 90ms;
}

.landing-rise-2 {
  animation-delay: 180ms;
}

.landing-rise-3 {
  animation-delay: 270ms;
}

.landing-rise-4 {
  animation-delay: 360ms;
}

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

  .landing-rise,
  .landing-rise-1,
  .landing-rise-2,
  .landing-rise-3,
  .landing-rise-4 {
    animation: none;
  }
}

button,
[role="button"] {
  cursor: pointer;
}

/* Scale SVG icons to text size */
.icon svg {
  @apply h-[1em] w-[1em];
}

/* Scale SVG logos to appropriate size */
.logo svg {
  @apply h-[5rem] w-[5rem];
}

/* Search */
#search-query::-webkit-search-cancel-button,
#search-query::-webkit-search-decoration,
#search-query::-webkit-search-results-button,
#search-query::-webkit-search-results-decoration {
  @apply hidden;
}

/* RTL support */
.prose blockquote {
  @apply rtl:pr-4 rtl:border-l-0 rtl:border-r-4;
}

.prose ul > li,
.prose ol > li {
  @apply rtl:pl-0 rtl:pr-2 rtl:mr-7;
}

.prose ol > li:before,
.prose ul > li:before {
  @apply rtl:left-auto rtl:right-1;
}

.prose thead td:first-child,
.prose thead th:first-child {
  @apply rtl:pr-0;
}

.prose thead td:last-child,
.prose thead th:last-child {
  @apply rtl:pl-0;
}

/* Adjust first child within prose */
.prose div.min-w-0.max-w-prose > *:first-child {
  @apply mt-3;
}

/* Table of Contents */
#TOCView {
  max-height: calc(100vh - 150px);
  min-height: 0;
  overflow-x: hidden;
}

.toc ul,
.toc li {
  @apply px-0 leading-snug list-none;
}

.toc ul ul {
  @apply ltr:pl-4 rtl:pr-4;
}

.toc a {
  @apply font-normal text-neutral-700 dark:text-neutral-300;
}

.toc ul > li {
  @apply rtl:mr-0;
}

/* Code Copy */
.highlight {
  @apply relative z-0;
}

.highlight-wrapper:hover > .copy-button {
  @apply visible;
}

.copy-button {
  @apply absolute top-0 right-0 z-10 invisible w-20 py-1 font-mono text-sm cursor-pointer
  opacity-90 bg-neutral-200 whitespace-nowrap rounded-bl-md rounded-tr-md text-neutral-700
  dark:bg-neutral-600 dark:text-neutral-200 overflow-hidden truncate;
}

.copy-button:hover,
.copy-button:focus,
.copy-button:active,
.copy-button:active:hover {
  @apply bg-primary-100 dark:bg-primary-600;
}

.copy-textarea {
  @apply absolute opacity-5 -z-10;
}

/* Fix long KaTeX equations on mobile (see https://katex.org/docs/issues.html#css-customization) */
.katex-display {
  overflow: auto hidden;
}

/* Fix katex overflow https://github.com/nunocoracao/blowfish/issues/2138 */
.katex-display {
  padding: 1em;
  width: calc(100% - 1em);
}

/* Fix long tables breaking out of article on mobile */
table {
  display: block;
  overflow: auto;
}

/* Fix long inline code sections breaking out of article on mobile */
code {
  word-wrap: break-word; /* All browsers since IE 5.5+ */
  overflow-wrap: break-word; /* Renamed property in CSS3 draft spec */
}

/* Fix long URLs breaking out of article bounds on mobile */
a {
  word-break: break-word;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.prose-invert .highlight pre > code {
  background-color: unset;
}

/* Custom */

pre {
  text-align: left;
}

.single_hero_round {
  max-height: 50vh;
  object-fit: cover;
}

.single_hero_background {
  width: calc(100% + 1px); /* patch for very small gap at right edge on mobile devices */
  z-index: -10;
}

.hero_gradient {
  width: 100%;
  height: 100%;
}

/* ---- Print ---- */
@page {
  margin: 2cm;
}

@media print {
  html {
    color-scheme: light only;
  }
  body {
    background: #fff !important;
    color: #111 !important;
    max-width: none !important;
    padding: 0 !important;
  }

  /* Site chrome that makes no sense on paper */
  body > header,
  #background-canvas,
  .single_hero_background,
  #scroll-to-top,
  #bmc-wbtn {
    display: none !important;
  }

  /* Flatten decoration; dark mode prints light */
  * {
    box-shadow: none !important;
    text-shadow: none !important;
  }
  main,
  article,
  .prose,
  .prose *:not(pre):not(pre *) {
    color: #111 !important;
    background: transparent !important;
  }
  pre,
  pre * {
    background: #f4f4f5 !important;
    color: #111 !important;
    white-space: pre-wrap !important;
  }

  /* Links stay useful on paper */
  a {
    text-decoration: underline;
  }
  .prose a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #555;
    word-break: break-all;
  }

  /* Sensible page flow */
  pre,
  blockquote,
  table,
  figure,
  img {
    break-inside: avoid;
  }
  h1,
  h2,
  h3,
  h4 {
    break-after: avoid;
  }
  img {
    max-width: 100% !important;
  }
}

/* Background hero: feature image dissolves into the global background */
.hero-canvas-fade {
  -webkit-mask-image: linear-gradient(to bottom, black 20%, transparent 92%);
  mask-image: linear-gradient(to bottom, black 20%, transparent 92%);
}

/* Shortcode grids: a lone trailing card stretches across the full row */
@media (min-width: 640px) and (max-width: 1023.98px) {
  .grid-balance > :last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}
@media (min-width: 1024px) {
  .grid-balance-3 > :last-child:nth-child(3n + 1) {
    grid-column: 1 / -1;
  }
  .grid-balance-4 > :last-child:nth-child(4n + 1) {
    grid-column: 1 / -1;
  }
}

.thumbnail_card {
  aspect-ratio: var(--thumbnail-aspect-ratio, 1.5);
  height: auto;
}

.thumbnail_card_related {
  aspect-ratio: var(--thumbnail-aspect-ratio, 1.5);
  height: auto;
}

.thumbnail {
  width: 300px;
  min-height: 180px;
}

@variant max-md {
  .thumbnail {
    width: 100%;
  }
}

.thumbnail-shadow {
  box-shadow: 5px 5px 20px 1px rgba(0, 0, 0, 0.3);
}

/* placeholder for gallery/carousel */
@variant max-md {
  .width-patch {
    width: 80vw;
  }
}
@variant min-md {
  .width-patch {
    width: 65ch;
  }
}

.anchor {
  display: block;
  position: relative;
  top: -150px;
  height: 0px;
  visibility: hidden;
}

/* Offset scroll position to avoid header overlap */
[id^="fn"],
[id^="fnref"] {
  scroll-margin-top: 145px;
}

/* patch for skip to main content */
#main-content {
  scroll-margin-top: -125px;
}

@variant sm {
  .article {
    flex-wrap: wrap;
  }
}

@variant md {
  .article {
    flex-wrap: nowrap;
  }
}

.medium-zoom-image--opened {
  z-index: 100;
}

@layer utilities {
  .bf-border-color {
    @apply border-neutral-300 dark:border-neutral-700;
  }

  .bf-border-color-hover {
    @apply hover:border-primary-600 dark:hover:border-primary-400;
  }

  .bf-icon-color-hover {
    @apply hover:text-primary-600 dark:hover:text-primary-400;
  }

  .bf-scrollbar {
    &::-webkit-scrollbar-track {
      background-color: var(--scrollbar-track);
      border-radius: var(--scrollbar-track-radius);
    }
    &::-webkit-scrollbar-thumb {
      background-color: var(--scrollbar-thumb);
      border-radius: var(--scrollbar-thumb-radius);
    }
    &::-webkit-scrollbar-corner {
      background-color: var(--scrollbar-corner);
      border-radius: var(--scrollbar-corner-radius);
    }
    @supports (-moz-appearance:none) {
      scrollbar-width: thin;
      scrollbar-color: var(--scrollbar-thumb, initial) var(--scrollbar-track, initial);
    }
    &::-webkit-scrollbar {
      display: block;
      width: 8px;
      height: 8px;
    }
    --scrollbar-thumb: oklch(70.8% 0 0);
    --scrollbar-track: oklch(92.2% 0 0);
    &:is(.dark *) {
      --scrollbar-thumb: oklch(43.9% 0 0);
    }
    &:is(.dark *) {
      --scrollbar-track: oklch(26.9% 0 0);
    }
  }
}

@layer base {
  * {
    @supports (-moz-appearance:none) {
      scrollbar-color: initial;
      scrollbar-width: initial;
    }
  }
}

/* Prevent body scroll when mobile menu is open */
body:has(#mobile-menu-toggle:checked) {
  overflow: hidden;
}

/* Reset body position for desktop after it was modified on mobile */
@media (min-width: 853px) {
  body:has(#mobile-menu-toggle:checked) {
    overflow: visible;
  }
}

/* Hide buy me a coffee in mobile menu */
#bmc-wbtn {
  z-index: 50 !important;
}

.nested-menu {
  position: relative;
}

.menuhide {
  position: absolute;
  z-index: 1000;
  width: max-content;
  max-width: min(20rem, calc(100vw - 2rem));

  opacity: 0;
  visibility: hidden;

  transition:
    visibility 0.3s,
    opacity 0.3s ease-in-out;
}

/* A backdrop-filter turns the header pill into a containing block for
   position:fixed descendants, which would trap the fullscreen mobile menu
   inside it. Lift the filter while that menu is open — the fullscreen
   overlay covers the header anyway, so the change is invisible. */
header > div:has(.mobile-menu-fullscreen #mobile-menu-toggle:checked) {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* Dropdowns near the end of the bar open leftward so they stay on screen */
.nested-menu:nth-last-child(-n + 3) .menuhide,
.mobile-header-row .menuhide {
  inset-inline-end: 0;
}

.nested-menu:hover .menuhide,
.nested-menu:focus-within .menuhide {
  opacity: 1;
  visibility: visible;
}

.active {
  text-decoration-line: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}