/* a-terra-forge - Universal document-oriented markdown site generator */
/* Copyright (c) Kouji Matsui. (@kekyo@mi.kekyo.net) */
/* Under MIT. */
/* https://github.com/kekyo/a-terra-forge */

/* ==================================================================== */
/* Common color variables */

/* Global variables */
:root {
  /* Primary accent color */
  --primary-rgb: 208, 48, 48;
  /* Secondary accent color */
  --secondary-rgb: 64, 255, 64;
  /* Inline code accent color */
  --inline-code-rgb: 255, 0, 128;
  /* Header (H1) icon (default: activity) */
  --header-icon-default: '\F438';
  /* Max document area width  */
  --docs-max-width: 90rem;
}

:root {
  --primary: rgb(var(--primary-rgb));
  --primary-alpha-25: color-mix(in srgb, var(--primary) 25%, transparent);
  --primary-alpha-50: color-mix(in srgb, var(--primary) 50%, transparent);
  --primary-alpha-75: color-mix(in srgb, var(--primary) 75%, transparent);
  --primary-tint-12: color-mix(in srgb, var(--primary) 12%, white);
  --primary-tint-30: color-mix(in srgb, var(--primary) 30%, white);
  --primary-tint-38: color-mix(in srgb, var(--primary) 38%, white);
  --primary-tint-69: color-mix(in srgb, var(--primary) 69%, white);
  --primary-shade-69: color-mix(in srgb, var(--primary) 69%, black);

  --secondary: rgb(var(--secondary-rgb));
  --secondary-alpha-25: color-mix(in srgb, var(--secondary) 25%, transparent);
  --secondary-alpha-50: color-mix(in srgb, var(--secondary) 50%, transparent);
  --secondary-alpha-75: color-mix(in srgb, var(--secondary) 75%, transparent);

  --inline-code: rgb(var(--inline-code-rgb));

  --badge-bg: var(--primary-alpha-50);
  --badge-color: var(--primary-tint-69);

  --panel-surface: var(--panel-surface-base);
  --panel-border: var(--panel-border-base);
  --panel-shadow: var(--panel-shadow-base);
  --panel-ink: var(--panel-ink-base);
  --panel-muted: color-mix(in srgb, var(--panel-ink) 70%, transparent);
  --panel-link: var(--panel-link-base);
  --panel-preview-bg: var(--panel-preview-bg-base);
  --panel-preview-border: var(--panel-border);
  --panel-padding: 0.9rem 1.2rem;
  --panel-media-max-height: 20rem;
}

@supports (color: oklch(from black l c h)) {
  :root {
    --primary-tint-12: oklch(from var(--primary) calc(l + 0.35) calc(c * 0.12) h);
    --primary-tint-30: oklch(from var(--primary) calc(l + 0.27) calc(c * 0.30) h);
    --primary-tint-38: oklch(from var(--primary) calc(l + 0.24) calc(c * 0.40) h);
    --primary-tint-69: oklch(from var(--primary) calc(l + 0.11) calc(c * 0.72) h);
    --primary-shade-69: oklch(from var(--primary) calc(l - 0.14) calc(c * 0.74) h);
  }
}

/* Light theme */
:root[data-bs-theme="light"] {
  --inline-code-color: color-mix(in srgb, var(--inline-code) 65%, #303030c0);
  --inline-code-bg: color-mix(in srgb, var(--inline-code) 8%,  #ffffffc0);

  --panel-surface-base: var(--primary-tint-12);
  --panel-border-base: var(--primary-tint-38);
  --panel-shadow-base: 0 0 4rem rgba(0, 0, 0, 0.4);
  --panel-ink-base: #102640;
  --panel-link-base: var(--primary-shade-69);
  --panel-preview-bg-base: var(--panel-surface-base);
}

/* Dark theme */
:root[data-bs-theme="dark"] {
  --inline-code-color: color-mix(in srgb, var(--inline-code) 50%, #ffffffe0);
  --inline-code-bg: color-mix(in srgb, var(--inline-code) 5%,  #50505060);

  --panel-surface-base: color-mix(
    in srgb,
    var(--primary) 22%,
    var(--bs-body-bg)
  );
  --panel-border-base: color-mix(
    in srgb,
    var(--primary-tint-69) 49%,
    var(--bs-body-bg)
  );
  --panel-shadow-base: 0 0 4rem rgba(0, 0, 0, 0.7);
  --panel-ink-base: #f5f8ff;
  --panel-link-base: var(--primary-tint-30);
  --panel-preview-bg-base: var(--panel-surface-base);
}

/* ==================================================================== */
/* Common bootstrap variable delegation */

/* Primary/secondary base color definitions */
:root {
  --bs-primary-rgb: var(--primary-rgb);
  --bs-secondary-rgb: var(--secondary-rgb);
}

/* Common color definitions */
:root {
  --bs-primary: rgb(var(--bs-primary-rgb));
  --bs-secondary: rgb(var(--bs-secondary-rgb));
  --bs-link-color-rgb: var(--bs-primary-rgb);
  --bs-link-hover-color-rgb: var(--bs-primary-rgb);
  --bs-focus-ring-color: color-mix(
    in srgb,
    var(--bs-primary) 25%,
    transparent
  );
}

/* Light theme */
:root[data-bs-theme="light"] {
  --bs-link-color: var(--bs-primary);
  --bs-link-hover-color: var(--primary-shade-69);
  --bs-primary-text-emphasis: var(--primary-shade-69);
  --bs-primary-bg-subtle: var(--primary-tint-69);
  --bs-primary-border-subtle: var(--primary-tint-38);
  --bs-secondary-text-emphasis: color-mix(in srgb, var(--bs-secondary) 70%, black);
  --bs-secondary-bg-subtle: color-mix(in srgb, var(--bs-secondary) 16%, white);
  --bs-secondary-border-subtle: color-mix(
    in srgb,
    var(--bs-secondary) 35%,
    white
  );
}

/* Dark theme */
:root[data-bs-theme="dark"] {
  --bs-body-bg: #141414;
  --bs-body-bg-rgb: 20, 20, 20;
  --bs-body-color: #e4e4e4;
  --bs-body-color-rgb: 228, 228, 228;
  --bs-emphasis-color: #f2f2f2;
  --bs-secondary-color: #e4e4e4c0;
  --bs-tertiary-color: #e4e4e470;
  --bs-secondary-bg: #1c1c1c;
  --bs-tertiary-bg: #262626;
  --bs-secondary-bg-rgb: 28, 28, 28;
  --bs-tertiary-bg-rgb: 38, 38, 38;
  --bs-border-color: #404040;
  --bs-border-color-translucent: rgba(255, 255, 255, 0.12);
  --bs-link-color: var(--primary-tint-30);
  --bs-link-hover-color: var(--primary-tint-69);
  --bs-primary-text-emphasis: var(--primary-tint-30);
  --bs-primary-bg-subtle: color-mix(
    in srgb,
    var(--bs-primary) 20%,
    var(--bs-body-bg)
  );
  --bs-primary-border-subtle: color-mix(
    in srgb,
    var(--bs-primary) 35%,
    var(--bs-body-bg)
  );
  --bs-secondary-text-emphasis: color-mix(
    in srgb,
    var(--bs-secondary) 70%,
    white
  );
  --bs-secondary-bg-subtle: color-mix(
    in srgb,
    var(--bs-secondary) 20%,
    var(--bs-body-bg)
  );
  --bs-secondary-border-subtle: color-mix(
    in srgb,
    var(--bs-secondary) 35%,
    var(--bs-body-bg)
  );
}

/* -------------------------------------------------------------------- */
/* HACK: Bootstrap color override patch */

/* Bootstrap 5.3.0 ships hard-coded #0d6efd values in several components.
 * Keep this block isolated so it can be removed once Bootstrap is fully
 * driven by theme variables. */

.form-check-input:focus,
.form-check-input:focus-visible {
  border-color: var(--bs-primary);
  box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
  outline: 0;
}

.form-switch .form-check-input {
  background-size: 1em 1em;
}

.form-switch .form-check-input:focus:not(:checked),
.form-switch .form-check-input:focus-visible:not(:checked) {
  --bs-form-switch-bg: radial-gradient(
    circle,
    rgba(var(--bs-primary-rgb), 0.7) 0.35em,
    transparent 0.36em
  );
}

.form-check-input:checked,
.form-check-input[type="checkbox"]:indeterminate {
  background-color: var(--bs-primary);
  border-color: var(--bs-primary);
}

.form-range::-webkit-slider-thumb {
  background-color: var(--bs-primary);
}

.form-range::-moz-range-thumb {
  background-color: var(--bs-primary);
}

.btn-primary {
  --bs-btn-bg: var(--bs-primary);
  --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: color-mix(in srgb, var(--bs-primary) 85%, black);
  --bs-btn-hover-border-color: color-mix(in srgb, var(--bs-primary) 80%, black);
  --bs-btn-active-bg: color-mix(in srgb, var(--bs-primary) 75%, black);
  --bs-btn-active-border-color: color-mix(in srgb, var(--bs-primary) 70%, black);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
  --bs-btn-disabled-bg: var(--bs-primary);
  --bs-btn-disabled-border-color: var(--bs-primary);
}

.btn-outline-primary {
  --bs-btn-color: var(--bs-primary);
  --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-bg: var(--bs-primary);
  --bs-btn-hover-border-color: var(--bs-primary);
  --bs-btn-active-bg: var(--bs-primary);
  --bs-btn-active-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
  --bs-btn-disabled-color: var(--bs-primary);
  --bs-btn-disabled-border-color: var(--bs-primary);
}

.dropdown-menu {
  --bs-dropdown-link-active-bg: var(--bs-primary);
}

.nav-pills {
  --bs-nav-pills-link-active-bg: var(--bs-primary);
}

.pagination {
  --bs-pagination-active-bg: var(--bs-primary);
  --bs-pagination-active-border-color: var(--bs-primary);
  --bs-pagination-focus-box-shadow: 0 0 0 0.25rem
    rgba(var(--bs-primary-rgb), 0.25);
}

.list-group {
  --bs-list-group-active-bg: var(--bs-primary);
  --bs-list-group-active-border-color: var(--bs-primary);
}

.progress {
  --bs-progress-bar-bg: var(--bs-primary);
}

.badge {
  --bs-badge-color: var(--badge-color);
  background-color: var(--badge-bg);
  color: var(--badge-color);
}

.badge:hover {
  color: var(--badge-color);
}

/* ==================================================================== */
/* HTML root, body */

html,
body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  margin: 0;
}

/* -------------------------------------------------------------------- */
/* Navigation bar */

.navbar .navbar-toggler {
  border: 0;
  box-shadow: none;
}

.navbar .navbar-toggler:focus,
.navbar .navbar-toggler:focus-visible,
.navbar .navbar-toggler:active {
  border: 0;
  box-shadow: none;
  outline: none;
}

.navbar .nav-link {
  margin-left: 0.4rem;
  margin-right: 0.4rem;
  padding-left: 0.8rem;
  padding-right: 0.8rem;
}

.navbar .nav-link.active {
  position: relative;
  margin-left: 0.4rem;
  margin-right: 0.4rem;
  padding-left: 0.8rem;
  padding-right: 0.8rem;
  z-index: 0;
}

.navbar .nav-link.active::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--bs-navbar-padding-y));
  bottom: calc(-1 * var(--bs-navbar-padding-y));
  left: 0;
  right: 0;
  z-index: -1;
}

.navbar .nav-category-label {
  cursor: default;
}

.navbar .nav-item-nested {
  margin-bottom: 0.25rem;
}

.navbar .nav-submenu {
  margin: 0 0 0.25rem;
  padding-left: 1rem;
}

.navbar .nav-submenu .nav-link {
  margin-left: 0;
  margin-right: 0;
}

.navbar .dropdown-item.active,
.navbar .dropdown-item:active {
  color: inherit;
}

[data-bs-theme="light"] .navbar .nav-link.active::before {
  background-color: rgba(0, 0, 0, 0.2);
}

[data-bs-theme="light"] .navbar .dropdown-item.active,
[data-bs-theme="light"] .navbar .dropdown-item:active {
  background-color: rgba(0, 0, 0, 0.2);
}

[data-bs-theme="light"] .navbar.bg-body-tertiary {
  background-color: color-mix(
    in srgb,
    var(--bs-body-bg) 92%,
    black
  ) !important;
}

[data-bs-theme="dark"] .navbar .nav-link.active::before {
  background-color: rgba(255, 255, 255, 0.14);
}

[data-bs-theme="dark"] .navbar .dropdown-item.active,
[data-bs-theme="dark"] .navbar .dropdown-item:active {
  background-color: rgba(255, 255, 255, 0.14);
}

/* For narrow width (phone) */
@media (max-width: 575.98px) {
  .navbar .container-fluid {
    justify-content: flex-start;
  }

  .navbar .nav-link.active::before {
    top: 0;
    bottom: 0;
  }
}

/* For narrow width (phone) */
@media (min-width: 576px) {
  .navbar .navbar-collapse {
    min-width: 0;
  }

  .navbar .navbar-nav {
    flex-wrap: nowrap;
    min-width: 0;
  }

  .navbar .navbar-nav > .nav-item {
    min-width: 0;
    flex: 0 1 auto;
  }

  .navbar .navbar-nav > .nav-item > .nav-link {
    min-width: 0;
    display: flex;
    align-items: center;
  }

  .navbar .navbar-nav > .nav-item > .nav-link .nav-link-label {
    min-width: 0;
    flex: 1 1 auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* -------------------------------------------------------------------- */
/* Document root, article structures */

.docs-outer {
  flex: 1 1 auto;
  overflow: auto;
  min-height: 0;
  padding: 1em 2em 0 2em;
}

/* For narrow width (phone) */
@media (max-width: 575.98px) {
  .docs-outer {
    padding: 0.5em 1em 0 1em;
  }
}

.docs {
  max-width: var(--docs-max-width);
  margin-inline: auto;
}

/* Non-commit article indicator */
.article-entry--dirty {
  background-color: rgba(7, 77, 255, 0.2);
}

/* Non-commit article indicator */
.article-entry--no-git {
  background-color: rgba(7, 77, 255, 0.2);
}

/* Metadata list */
.entry-meta {
  color: var(--bs-secondary-color);
  font-size: 0.93rem;
  line-height: 1.15rem;
}

/* Metadata list */
.entry-meta p {
  display:inline;
  margin: 0;
  padding: 0 0.7rem 0 0;
}

.entry-body > :first-child {
  margin-top: 0;
}

.entry-body {
  display: flow-root;
}

/* -------------------------------------------------------------------- */
/* Inline code */

.entry-body :not(pre) > code {
  color: var(--inline-code-color);
  background-color: var(--inline-code-bg);
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
}

/* -------------------------------------------------------------------- */
/* Header signatures */

.entry-body h1,
.entry-body h2,
.entry-body h3,
.entry-body h4,
.entry-body h5,
.entry-body h6 {
  clear: both;
}

h1 {
  position: relative;
  margin-left: 0.4em;  /* For H1 icon */
  padding-top: 0.4rem;
  padding-left: 1em;  /* For H1 icon */
  padding-bottom: 0.6rem;
  border-bottom: 0.15rem solid var(--primary-alpha-50);
  --heading-anchor-left: -1.6em;  /* For H1 link icon */
  --heading-anchor-size: 1em;  /* For H1 link icon */
  --heading-anchor-hitbox: 0.5em;  /* For H1 link icon */
}

/* Display H1 icon */
h1::before {
  position: absolute;
  left: -0.4em;
  top: 0.6rem;
  font-family: "bootstrap-icons";
  font-size: 1em;
  line-height: 1;
  color: var(--primary);
  content: var(--header-icon, var(--header-icon-default));
}

h1.heading-has-link::before {
  content: none;
}

h1.heading-has-link > .heading-link::before {
  position: absolute;
  left: -0.4em;
  top: 0.6rem;
  font-family: "bootstrap-icons";
  font-size: 1em;
  line-height: 1;
  color: var(--primary);
  content: var(--header-icon, var(--header-icon-default));
}

h2 {
  position: relative;
  margin-bottom: 1rem;
  padding-top: 0.4rem;
  padding-left: 0.9rem;
  padding-bottom: 0.4rem;
  border-left: 0.7rem solid var(--primary-alpha-75);
  --heading-anchor-left: -1.5em;  /* For H2 link icon */
  --heading-anchor-size: 1em;  /* For H2 link icon */
  --heading-anchor-hitbox: 0.4em;  /* For H2 link icon */
}

h3 {
  margin-bottom: 0.9rem;
  padding-top: 0.4rem;
  padding-left: 0.65rem;
  padding-bottom: 0.4rem;
  border-left: 0.5rem solid var(--primary-alpha-75);
}

h4 {
  margin-bottom: 0.8rem;
  padding-top: 0.35rem;
  padding-left: 0.6rem;
  padding-bottom: 0.35rem;
  border-left: 0.45rem solid var(--primary-alpha-75);
}

h5 {
  margin-bottom: 0.7rem;
  padding-top: 0.3rem;
  padding-left: 0.5rem;
  padding-bottom: 0.3rem;
  border-left: 0.4rem solid var(--primary-alpha-75);
}

h6 {
  margin-bottom: 0.6rem;
  padding-top: 0.23rem;
  padding-left: 0.48rem;
  padding-bottom: 0.23rem;
  border-left: 0.38rem solid var(--primary-alpha-75);
}

/* -------------------------------------------------------------------- */
/* Heading permalinks */

.entry-header {
  margin-bottom: 0.75rem;
}

.entry-header h2 {
  margin: 0;
}

.heading-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.heading-link:hover,
.heading-link:focus-visible {
  color: inherit;
  text-decoration: none;
}

.entry-header h1 .heading-link,
.entry-header h2 .heading-link,
.entry-meta a {
  color: inherit;
  text-decoration: none;
}

.entry-header h1 .heading-link:hover,
.entry-header h1 .heading-link:focus-visible,
.entry-header h2 .heading-link:hover,
.entry-header h2 .heading-link:focus-visible,
.entry-body h1 .heading-link:hover,
.entry-body h1 .heading-link:focus-visible,
.entry-body h2 .heading-link:hover,
.entry-body h2 .heading-link:focus-visible,
.entry-meta a:hover,
.entry-meta a:focus-visible {
  color: var(--bs-link-hover-color);
  text-decoration: none;
}

.heading-anchor {
  position: absolute;
  left: var(--heading-anchor-left, -1.2em);
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: var(--heading-anchor-size, 0.9em);
  height: var(--heading-anchor-size, 0.9em);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  padding: 0;
  padding-right: var(--heading-anchor-hitbox, 0.4em);
  line-height: 1;
  font-size: var(--heading-anchor-size, 0.9em);
  color: var(--heading-anchor-color, var(--bs-link-color));
  text-decoration: none;
  opacity: 0;
  pointer-events: auto;
  transition: opacity 0.2s ease-in-out;
}

.heading-anchor:hover,
.heading-anchor:focus-visible {
  color: var(--bs-link-hover-color);
  opacity: 1;
  pointer-events: auto;
}

.entry-header h1:hover .heading-anchor,
.entry-header h1:focus-within .heading-anchor,
.entry-header h2:hover .heading-anchor,
.entry-header h2:focus-within .heading-anchor,
.entry-body h1:hover .heading-anchor,
.entry-body h1:focus-within .heading-anchor,
.entry-body h2:hover .heading-anchor,
.entry-body h2:focus-within .heading-anchor {
  opacity: 1;
  pointer-events: auto;
}

.heading-anchor--copied {
  color: var(--bs-success);
}

@media (max-width: 575.98px) {
  .heading-anchor {
    opacity: 1;
    pointer-events: auto;
  }
}

/* -------------------------------------------------------------------- */
/* Stream structures */

.stream-list {
  display: flex;
  flex-direction: column;
  gap: 2em;
}

.stream-entry {
  padding-bottom: 2em;
  border-bottom: 2px solid var(--primary-alpha-75);
}

.stream-entry-error {
  color: var(--bs-danger);
}

.stream-status {
  padding: 1rem 0;
  text-align: center;
  color: var(--bs-secondary-color);
}

/* Continuous stream loader detection */
.stream-sentinel {
  height: 1px;
}

/* -------------------------------------------------------------------- */
/* Blockquotes */

.entry-body blockquote {
  position: relative;
  margin: 0.75rem 0 0.75rem 2.8rem;
  padding: 0.8rem 1.5rem 0.8rem 0.7rem;
  color: var(--bs-body-color);
  border-left: 0.34rem solid var(--secondary-alpha-50);
}

.entry-body blockquote::before {
  position: absolute;
  left: -1.3em;
  top: 0;
  font-family: "bootstrap-icons";
  font-size: 2.1em;
  line-height: 1;
  color: var(--secondary-alpha-50);
  content: "\f6b0";
}

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

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

/* -------------------------------------------------------------------- */
/* oEmbed */

.oembed-container {
  max-width: 700px;
  margin: 0.75rem 0 0.75rem 0.5rem;
  position: relative;
  border-top-right-radius: 1.5rem;
  border-bottom-right-radius: 1.5rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border: 0.1rem solid var(--panel-border);
  background: var(--panel-surface);
  background-clip: padding-box;
  box-sizing: border-box;
  display: grid;
  overflow: hidden;
  color: var(--panel-ink);
  clear: both;
}

@media (min-width: 920px) {
  .entry-body .oembed-container {
    float: right;
    width: 60%;
    margin-left: 1.3rem;
  }
}

@media (min-width: 600px) {
  .oembed-container {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

.oembed-header {
  display: flex;
  flex-direction: column;
  padding: var(--panel-padding);
  gap: 0.35rem;
  min-width: 0;
  align-self: start;
}

.oembed-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
}

.oembed-description {
  font-size: 0.8rem;
  color: var(--panel-muted);
  line-height: 1.35;
}

.oembed-author {
  display: none;
}

.oembed-author,
.oembed-provider {
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--panel-muted);
}

.oembed-provider {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.oembed-provider::before {
  display: none;
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--panel-link);
}

.oembed-content {
  display: grid;
  min-width: 0;
  align-self: start;
}

.oembed-thumbnail,
.oembed-responsive-wrapper,
.oembed-responsive-content {
  border-radius: 0;
  overflow: hidden;
  background: var(--panel-preview-bg);
  background-clip: padding-box;
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  box-sizing: border-box;
  align-self: start;
}

.oembed-thumbnail img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover !important;
  align-self: start;
}

.oembed-content > img {
  border-radius: 0;
  background: var(--panel-preview-bg);
  background-clip: padding-box;
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  box-sizing: border-box;
}

@supports selector(.oembed-content:has(> *)) {
  .oembed-content:has(
      > :not(.oembed-thumbnail):not(.oembed-external-link):not(a):not(style)
    )
    .oembed-thumbnail {
    display: none;
  }
}

.oembed-iframe-container {
  border-radius: inherit;
  overflow: hidden;
}

.oembed-container a {
  color: var(--panel-link);
  text-decoration: none;
}

.oembed-container a:hover,
.oembed-container a:focus-visible {
  text-decoration: underline;
}

.oembed-external-link {
  position: static;
}

.oembed-external-link a {
  position: absolute;
  inset: 0;
  z-index: 2;  /* Under embedded contents */
  display: block;
  color: transparent;
  text-decoration: none;
  text-indent: -9999px;
  overflow: hidden;
  white-space: nowrap;
}

.oembed-external-link a:focus-visible {
  outline: 2px solid var(--panel-link);
  outline-offset: 2px;
}

.oembed-responsive-wrapper {
  position: relative;
  z-index: 3;  /* Over link area (.oembed-external-link) */
}

/* -------------------------------------------------------------------- */
/* Cards */

.card-container {
  max-width: 700px;
  margin: 0.75rem 0 0.75rem 0.5rem;
  border-top-right-radius: 1.5rem;
  border-bottom-right-radius: 1.5rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border: 0.1rem solid var(--panel-border);
  background-clip: padding-box;
  background: var(--panel-surface);
  box-sizing: border-box;
  overflow: hidden;
  color: var(--panel-ink);
  clear: both;
}

@media (min-width: 920px) {
  .entry-body .card-container {
    float: right;
    width: 60%;
    margin-left: 1.3rem;
  }
}

.card-link {
  display: grid;
  color: inherit;
  text-decoration: none;
}

@media (min-width: 600px) {
  .card-link {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

.card-body {
  display: flex;
  flex-direction: column;
  padding: var(--panel-padding);
  gap: 0.35rem;
  min-width: 0;
  order: 1;
  align-self: start;
}

.card-image {
  border-radius: 0;
  overflow: hidden;
  background: var(--panel-preview-bg);
  background-clip: padding-box;
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  box-sizing: border-box;
  order: 2;
  align-self: start;
}

.card-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover !important;
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
}

.card-description {
  font-size: 0.8rem;
  color: var(--panel-muted);
  line-height: 1.35;
}

.card-provider {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--panel-muted);
}

.card-favicon {
  width: 1rem !important;
  height: 1rem !important;
  border-radius: 0.2rem;
  flex: 0 0 auto;
  display: inline-block !important;
}

.card-image + .card-body .card-favicon {
  display: none !important;
}

@supports selector(.card-container:has(.card-image)) {
  .card-container:has(.card-image) .card-favicon {
    display: none !important;
  }
}

.card-field {
  font-size: 0.85rem;
  color: var(--panel-muted);
  line-height: 1.3;
}

.card-field .field-label {
  font-weight: 600;
  color: var(--panel-ink);
}

.card-content,
.card-external-link {
  font-size: 0.85rem;
}

.card-external-link {
  color: var(--panel-link);
  text-decoration: none;
}

.card-external-link:hover,
.card-external-link:focus-visible {
  text-decoration: underline;
}

/* -------------------------------------------------------------------- */
/* Mermaid diagrams */

:root[data-bs-theme="light"] .beautiful-mermaid-wrapper {
  --mdc-bm-bg: var(--panel-preview-bg) !important;
  --mdc-bm-fg: var(--panel-ink) !important;
  --mdc-bm-line: var(--primary-shade-69) !important;
  --mdc-bm-accent: var(--primary) !important;
  --mdc-bm-muted: var(--primary-tint-69) !important;
  --mdc-bm-surface: var(--primary-tint-30) !important;
  --mdc-bm-border: var(--primary-tint-38) !important;
}

:root[data-bs-theme="dark"] .beautiful-mermaid-wrapper {
  --mdc-bm-bg: var(--panel-preview-bg) !important;
  --mdc-bm-fg: var(--panel-ink) !important;
  --mdc-bm-line: var(--primary-tint-38) !important;
  --mdc-bm-accent: var(--primary-tint-30) !important;
  --mdc-bm-muted: var(--primary-tint-69) !important;
  --mdc-bm-surface: var(--primary-alpha-50) !important;
  --mdc-bm-border: var(--primary-tint-38) !important;
}

.mermaid-wrapper,
.beautiful-mermaid-wrapper {
  max-width: 700px;
  max-height: var(--panel-media-max-height);
  margin: 0.75rem 0 0.75rem 0.5rem;
  position: relative;
  border-top-right-radius: 1.5rem;
  border-bottom-right-radius: 1.5rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border: 0.1rem solid var(--panel-border);
  background: var(--panel-surface);
  background-clip: padding-box;
  box-sizing: border-box;
  display: grid;
  overflow: hidden;
  color: var(--panel-ink);
  clear: both;
}

.entry-body .mermaid-wrapper,
.entry-body .beautiful-mermaid-wrapper {
  cursor: pointer;
}

.mermaid-wrapper .mermaid {
  display: block;
  padding: 0.5rem;
  background: var(--panel-preview-bg);
  background-clip: padding-box;
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  box-sizing: border-box;
}

.beautiful-mermaid-wrapper {
  padding: var(--panel-padding);
}

.beautiful-mermaid-wrapper > svg {
  display: block;
  width: 100% !important;
  height: auto !important;
  max-width: 100% !important;
  background: var(--panel-preview-bg);
  box-shadow: none;
  box-sizing: border-box;
}

.beautiful-mermaid-wrapper.beautiful-mermaid-ascii {
  overflow: auto;
  background: var(--panel-preview-bg);
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.entry-body .mermaid-wrapper .mermaid > svg {
  width: 100% !important;
  height: auto !important;
  max-width: 100% !important;
}

@media (min-width: 920px) {
  .entry-body .mermaid-wrapper,
  .entry-body .beautiful-mermaid-wrapper {
    float: right;
    width: 60%;
    margin-left: 1.3rem;
  }
}

/* -------------------------------------------------------------------- */
/* Reference images */

p.article-image-outer {
  max-width: 700px;
  max-height: var(--panel-media-max-height);
  margin: 0.75rem 0 0.75rem 0.5rem;
  position: relative;
  border-top-right-radius: 1.5rem;
  border-bottom-right-radius: 1.5rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border: 0.1rem solid var(--panel-border);
  background: var(--panel-surface);
  background-clip: padding-box;
  box-sizing: border-box;
  display: grid;
  overflow: hidden;
  color: var(--panel-ink);
  clear: both;
}

p.article-image-outer > img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  background: var(--panel-preview-bg);
  background-clip: padding-box;
  box-shadow: 0 0 0 0.1rem var(--panel-preview-border);  /* overlapped border */
  box-sizing: border-box;
}

.entry-body p.article-image-outer,
.entry-body p.article-image-outer > img {
  cursor: pointer;
}

@media (min-width: 920px) {
  .entry-body p.article-image-outer {
    float: right;
    width: 60%;
    margin-left: 1.3rem;
  }
}

/* -------------------------------------------------------------------- */
/* Image/Mermaid graph modal */

.image-modal .image-modal-dialog {
  max-width: calc(100vw - 2rem);
  width: auto;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 920px) {
  .image-modal .image-modal-dialog {
    max-width: calc(100vw - 10rem);
  }
}

.image-modal .modal-content {
  width: 100%;
  border: 0.1rem solid var(--panel-border);
  background: var(--panel-preview-bg);
  border-radius: 0.5rem;
  box-shadow: var(--panel-shadow);
  overflow: hidden;
}

.image-modal .modal-body {
  padding: 1.5rem;
}

@media (max-width: 575.98px) {
  .image-modal .modal-body {
    padding: 0;
  }
}

.image-modal .image-modal-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: calc(100vh - 8rem);
  object-fit: contain;
  background: var(--panel-preview-bg);
}

.image-modal.image-modal--image .image-modal-dialog {
  width: fit-content;
}

.image-modal.image-modal--image .modal-content {
  width: fit-content;
}

.image-modal.image-modal--image .image-modal-image {
  width: auto;
}

.image-modal.image-modal--media .image-modal-dialog {
  width: calc(100vw - 2rem);
  max-width: calc(100vw - 2rem);
}

@media (min-width: 920px) {
  .image-modal.image-modal--media .image-modal-dialog {
    width: calc(100vw - 10rem);
    max-width: calc(100vw - 10rem);
  }
}

.image-modal.image-modal--media .modal-media-panel {
  width: 100%;
}

.image-modal .modal-media-panel {
  max-width: none;
  max-height: none;
  margin: 0;
  float: none;
}

.image-modal .modal-media-panel.beautiful-mermaid-wrapper,
.image-modal .modal-media-panel.mermaid-wrapper {
  justify-self: stretch;
  border: 0;
  box-shadow: none;
}

.image-modal .modal-media-panel.mermaid-wrapper .mermaid,
.image-modal .modal-media-panel.beautiful-mermaid-wrapper > svg,
.image-modal .modal-media-panel.beautiful-mermaid-ascii {
  box-shadow: none;
}

.image-modal .modal-media-panel .mermaid,
.image-modal .modal-media-panel > svg {
  max-height: calc(100vh - 8rem);
  height: auto;
  width: 100%;
}

.image-modal .modal-media-panel.beautiful-mermaid-ascii {
  max-height: calc(100vh - 8rem);
  overflow: hidden;
}

/* -------------------------------------------------------------------- */
/* Syntax highlighting: rehype-pretty-code, shiki */

figure[data-rehype-pretty-code-figure] {
  margin: 0.75rem 0 0.75rem 0.5rem;
}

figure[data-rehype-pretty-code-figure] pre {
  position: relative;
  padding: 1rem 0;
  border-top-right-radius: 1.5rem;
  border-bottom-right-radius: 1.5rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  overflow: auto;
  border: 1.5px solid var(--panel-border);
}

@media (min-width: 920px) {
  .entry-body figure[data-rehype-pretty-code-figure],
  .entry-body pre {
    clear: both;
  }
}

figure[data-rehype-pretty-code-figure] pre[data-theme*=" "] {
  background-color: var(--shiki-light-bg);
}

:root[data-bs-theme="dark"]
  figure[data-rehype-pretty-code-figure]
  pre[data-theme*=" "] {
  background-color: var(--shiki-dark-bg);
}

figure[data-rehype-pretty-code-figure] code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

figure[data-rehype-pretty-code-figure] code[data-theme*=" "] {
  color: var(--shiki-light);
}

:root[data-bs-theme="dark"]
  figure[data-rehype-pretty-code-figure]
  code[data-theme*=" "] {
  color: var(--shiki-dark);
}

figure[data-rehype-pretty-code-figure] code[data-theme*=" "] span {
  color: var(--shiki-light);
}

:root[data-bs-theme="dark"]
  figure[data-rehype-pretty-code-figure]
  code[data-theme*=" "] span {
  color: var(--shiki-dark);
}

figure[data-rehype-pretty-code-figure] code > [data-line] {
  padding: 0 1rem;
}

figure[data-rehype-pretty-code-figure] code[data-line-numbers] {
  counter-reset: line;
}

figure[data-rehype-pretty-code-figure]
  code[data-line-numbers]
  > [data-line]::before {
  counter-increment: line;
  content: counter(line);
  display: inline-block;
  width: 1.5rem;
  margin-right: 0.75rem;
  text-align: right;
  color: var(--bs-tertiary-color);
}

figure[data-rehype-pretty-code-figure]
  code[data-line-numbers-max-digits="2"]
  > [data-line]::before {
  width: 2rem;
}

figure[data-rehype-pretty-code-figure]
  code[data-line-numbers-max-digits="3"]
  > [data-line]::before {
  width: 2.5rem;
}

figure[data-rehype-pretty-code-figure]
  code[data-line-numbers-max-digits="4"]
  > [data-line]::before {
  width: 3rem;
}

figure[data-rehype-pretty-code-figure] [data-highlighted-line] {
  background-color: color-mix(in srgb, var(--bs-primary) 12%, transparent);
  box-shadow: inset 0.25rem 0 0
    color-mix(in srgb, var(--bs-primary) 45%, transparent);
}

figure[data-rehype-pretty-code-figure] mark[data-highlighted-chars] {
  background-color: rgba(var(--bs-warning-rgb), 0.25);
  color: inherit;
  border-radius: 0.2rem;
  padding: 0 0.15rem;
}

.code-copy-button {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  border: 1px solid var(--bs-border-color);
  background-color: rgba(var(--bs-body-bg-rgb), 0.85);
  color: var(--bs-body-color);
  border-radius: 0.35rem;
  padding: 0.2rem 0.35rem;
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
}

figure[data-rehype-pretty-code-figure] pre:hover .code-copy-button,
figure[data-rehype-pretty-code-figure] pre:focus-within .code-copy-button {
  opacity: 1;
}

.code-copy-button-copied {
  color: var(--bs-success);
  border-color: var(--bs-success);
}