/* Variables definition */

body {
  --body_font-family: "YakuHanJPs","Segoe UI","-apple-system","BlinkMacSystemFont","Roboto", "Hiragino Sans","Noto Sans CJK JP", sans-serif;
  --pre_font-family: monospace;
}

.site_container {
  --container_box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.6);
}

.site_header_container {
  --header_background-color: #404040;
  --site-logo_color: #FFFFFF;
  --site-tagline_color: #D6D6D6;
  --site-navigation_color: #FFFFFF;
}

.site_footer_container {
  --footer_background-color: #404040;
  --footer-text_color: #D6D6D6;
  --footer-link_color: #FFFFFF;
  --footer-link_text-decoration-color: #808080;
  --footer-link_text-decoration-color_active: #FFFFFF;
}

.site_main_container {
  --main_background-color: #F0F0F0;

  --a_color: #4060F0;
  --a_color_selected: #D04040;
  --img_box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.6);
  --img_box-shadow_selected: 0px 0px 4px rgba(0, 0, 0, 0.8);

  --taxonomy-button_color: #000000;
  --taxonomy-button_background-color: #FFFFFF;
  --taxonomy-button_color_selected: #000000;
  --taxonomy-button_background-color_selected: #E8E8E8;

  --card_background-color: #FFFFFF;

  --page-list-timestamp_color: #585858;
  --page-list-title_color: #000000;
  --pagination-button_box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.6);
  --pagination-button_background-color: #F0F0F0;
  --pagination-button_color: #000000;
  --pagination-button_background-color_active: #404040;
  --pagination-button_color_active: #FFFFFF;
  --pagination-button_background-color_disabled: #F0F0F0;
  --pagination-button_color_disabled: #A0A0A0;

}

.single_container {
  --toc_color: #404040;
  --toc_background-color_selected: #F0F0F0;
  --toc_color_selected: #000000;

  --code_background-color: #F0F0F0;
  --codeblock-title_background-color: #D0D0D0;
  --codeblock-title_color: #000000;
  --blockquote_color: #404040;
  --th_background-color: #F0F0F0;
  --pre_color: #FFFFFF;
  --pre_background-color: #202020;
  --summary_background-color_selected: #F0F0F0;
  --figcaption_color: #585858;
}

.list_container {
  --page_timestamps_color: #585858;
}

/* HTML tag*/

html {
  scroll-behavior: smooth;
}

body {
  -webkit-text-size-adjust: 100%;
  overflow-y: scroll;
  margin: 0px;
  font-family: var(--body_font-family);
}

a {
  word-break: break-all;
  text-decoration: none;
  color: var(--a_color);
}

a:link {
}

a:visited {
}

a:hover {
  text-decoration: underline;
  color: var(--a_color_selected);
}

a:active {
  text-decoration: underline;
  color: var(--a_color_selected);
}

/* for Article */

h1 {
  margin-block-start: 0.4em;
  margin-block-end: 0.4em;
  font-size: 1.6em;
  line-height: 1.5em;
}

h2 {
  margin-block-start: 1.6em;
  margin-block-end: 1em;
  padding-inline-start: 12px;
  border-bottom: #808080 solid 2px;
  border-left: #808080 solid 6px;
  font-size: 1.4em;
  line-height:1.5em;
}

h3 {
  margin-block-start: 1.6em;
  margin-block-end: 1em;
  padding-inline-start: 12px;
  border-bottom: #808080 solid 1px;
  font-size: 1.2em;
  line-height:1.5em;
}

h4 {
  margin-block-start: 1.2em;
  margin-block-end: 1em;
  font-size: 1em;
  line-height:1.5em;
}

h5 {
  margin-block-start: 1em;
  margin-block-end: 1em;
  font-size: 0.8em;
  line-height:1.5em;
}

h6 {
  margin-block-start: 1em;
  margin-block-end: 1em;
  font-size: 0.6em;
  line-height:1.5em;
}

code {
  padding: 0px 4px;
  border: solid 1px #C0C0C0;
  border-radius: 4px;
  background-color: var(--code_background-color);
  font-family: inherit;
  font-size: 0.9em;
}

blockquote {
  margin-inline-start: 1em;
  margin-inline-end: 1em;
  padding-inline-start: 1em;
  padding-inline-end: 1em;
  border-left: solid 4px #A0A0A0;
  color: var(--blockquote_color);
}

table {
  display: block;
  overflow-x: auto;
  margin: 1em;
  padding: 0.5em;
  border-collapse: collapse;
}

th, td {
  padding: 2px 8px;
  border: solid 1px #C0C0C0;
}

th {
  background-color: var(--th_background-color);
}

.codeblock-title {
  display: inline-block;
  position: relative;
  margin: 0em;
  padding: 0em 0.5em;

  font-family: var(--pre_font-family);
  font-size: 1em;
  line-height: 1.5em;
  color: var(--codeblock-title_color);
  background-color: var(--codeblock-title_background-color);
}

.codeblock-content > div > pre {
  margin-top: -1.68em;
  padding-top: 2em;
}

.codeblock > div > pre {
}

pre {
  overflow-x: auto;
  margin: 1em 0em;
  padding: 1em;

  line-height: 1.2em;
  font-family: var(--pre_font-family);
  font-size: 1em;
  color: var(--pre_color);
  background-color: var(--pre_background-color);
}

pre > code {
  padding: unset;
  border: unset;
  border-radius: unset;
  font-size: unset;
  background-color: unset;
}

ul {
}

ol {
}

li:has( input )::marker {
  content: none;
}

hr {
}

img {
  max-width: 100%;
}

details {
  margin: 0.5em;
  padding: 4px;
  border-radius: 4px;
  border: solid 1px #C0C0C0;
}

summary {
  padding-inline-start: 8px;
  border-radius: 4px;
  cursor: pointer;
}

details[open] > summary {
  background-color: var(--summary_background-color_selected);
}

summary:hover {
  background-color: var(--summary_background-color_selected);
}

figure {
  margin: 1em;
}

a > img {
  box-shadow: var(--img_box-shadow);
}

a > img:hover {
  box-shadow: var(--img_box-shadow_selected);
}

sup {
  line-height: 0;
  vertical-align: baseline;
  position: relative;
  top: -0.4em;
  font-size: 0.8em;
}

figcaption {
  font-size: 0.9em;
  color: var(--figcaption_color);
}

.footnotes {
  font-size: 0.9em;
}

/* Global */

html, body, .site_container {
  height: 100%;
}

.site_container {
  display: flex;
  flex-direction: column;
}

.site_header_container {
  flex: 0 0 auto;
  z-index: 1;
}

.site_main_container {
  flex: 1 1 auto;
  z-index: 0;
  background-color: var(--main_background-color);
}

.site_footer_container {
  flex: 0 0 auto;
  z-index: 1;
}

.content_area {
  max-width: 1600px;
  margin-left: auto;
  margin-right: auto;
}


/* Component */

.card {
  max-width: 1200px;
  margin: 12px 12px;
  padding: 16px 16px;
  border-radius: 4px;
  box-shadow: var(--container_box-shadow);
  background-color: var(--card_background-color);
}

.taxonomy_list {
  padding-inline-start: 0px;
  list-style: none;
  font-size: 0.9em;
  margin-block-start: 0px;
  margin-block-end: 0px;
}

.taxonomy_list_item {
  display: inline-block;
}

.taxonomy_button {
  padding: 0px 8px;
  border: solid 1px #C0C0C0;
  border-radius: 6px;
  background-color: var(--taxonomy-button_background-color);
  color: var(--taxonomy-button_color);
  line-height: 1.8em;
}

.taxonomy_button:hover {
  background-color: var(--taxonomy-button_background-color_selected);
  color: var(--taxonomy-button_color_selected);
}

.has_icon::before {
  display: inline-block;
  content: "";
  width: 1em;
  height: 1em;
  margin-right: 0.5em;
  background-size: contain;
  background-repeat: no-repeat;
}

.is_icon::before {
  display: inline-block;
  content: "";
  width: 1em;
  height: 1em;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.is_icon:hover {
  background-color: rgba(0, 0, 0, 0.2);
}

.icon_calendar::before {
  background-image: url("/images/icon_calendar.svg");
}

.icon_reload::before {
  background-image: url("/images/icon_reload.svg");
}

.icon_category::before {
  background-image: url("/images/icon_folder.svg");
}

.icon_tag::before {
  background-image: url("/images/icon_tag.svg");
}

.icon_github::before {
  background-image: url("/images/icon_github.svg");
}

.icon_rss::before {
  background-image: url("/images/icon_rss.svg");
}

.icon_menu::before {
  background-image: url("/images/icon_menu.svg");
}

/* Header */

.site_header_container {
  box-shadow: var(--container_box-shadow);
  background-color: var(--header_background-color);
}

.header_body {
  color: var(--header_color);
}

.menu_trigger {
  display: none;
}

.header_main_container {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.logo_container {
  flex: 1 1 auto;
  margin: 4px 16px;
}

.site_logo {
  display: inline-block;
  margin: 4px;
}

.site_logo > a {
  padding: 4px;
  font-size: 1.8rem;
  color: var(--site-logo_color);
}

.site_tagline {
  display: inline-block;
  font-size: 1rem;
  color: var(--site-tagline_color);
}

.menu_button_container {
  flex: 0 0 auto;
  display: none;
}

.menu_button {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 4px;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
}

.menu_button::before {
  height: 1.4em;
  width: 1.4em;
}

.menu_container {
  display: flex;
  flex-direction: row;
  margin: 4px 16px;
}

.site_navigation_container {
  flex: 0 1 auto;
  text-align: center;
  border-right: solid 1px #C0C0C0;
}

.navigation_list {
  display: flex;
  flex-direction: row;
  justify-content: start;
  margin: 0px;
  padding: 0px 12px;
  list-style:none;
}

.navigation_item {
  padding: 4px 8px;
}

.navigation_item:last-of-type {
  border-right: none;
}

.navigation_item > a {
  padding: 4px;
  font-size: 1.4rem;
  color: var(--site-navigation_color);
}

.social_container {
  flex: 0 1 auto;
  text-align: center;
}

.social_list {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin: 0px;
  padding: 0px 8px;
  list-style: none;
}

.social_item {
  padding: 4px;
}

.social_item > a {
  padding: 4px;
  font-size: 1.4rem;
}


/* Footer */

.site_footer_container {
  box-shadow: var(--container_box-shadow);
  background-color: var(--footer_background-color);
}

.footer_body {
  padding: 8px 16px;
  font-size: 0.8rem;
  color: var(--footer-text_color);
}

.footer_body > a {
  color: var(--footer-link_color);
  text-decoration: underline;
  text-decoration-color: var(--footer-link_text-decoration-color);
}

.footer_body > a:hover {
  text-decoration-color: var(--footer-link_text-decoration-color_active);
}


/* Single Page */

.single_container {
  display: flex;
  flex-direction: column;
}

.single_main_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.article_main_container {
  flex: 1 1 auto;
  max-width: calc( 100% - 56px - 320px);
}

.article_header {
  padding: 8px;
  border-bottom: solid 3px #C0C0C0;
}

.article_body {
  padding: 16px;
  line-height: 1.6em;
}

.article_aside_container {
  flex: 0 0 320px;
}

.article_meta_container {
  font-size: 0.9em;
}

.article_meta_list {
  display: block;
  margin-block-start: 0px;
  margin-block-end: 0px;
}

.article_meta_item {
  border-bottom: dashed 1px #C0C0C0;
}

.article_meta_item:last-of-type {
  border-bottom: none;
}

.article_meta_item {
  padding: 8px 8px;
}

.article_meta_item.title {
  display: none;
}

.article_meta_item.timestamp {
  display: flex;
  flex-direction: row;
}

.article_meta_item.timestamp > dt {
  flex: 0 0 auto;
  text-align: left;
}

.article_meta_item.timestamp > dd {
  flex: 1 1 auto;
  margin-inline-start: 0px;
  text-align: right;
}

.article_meta_item.taxonomy {
  display: flex;
  flex-direction: column;
}

.article_meta_item.taxonomy > dt {
  flex: 0 0 auto;
  text-align: left;
}

.article_meta_item.taxonomy > dd {
  flex: 1 1 auto;
  margin-inline-start: 16px;
  margin-block-start: 8px;
  margin-block-end: 8px;
}

.article_toc_container {
  position: sticky;
  top: 12px;
  font-size: 0.9em;
}

.article_toc {
  max-height: calc(100vh - 56px);
  overflow-y: auto;
}

.toc_header {
  padding: 8px 8px;
  font-size: 1em;
  font-size: 1.1em;
}

.toc_body {
  padding-inline-start: 8px;
}

#TableOfContents > ul {
  list-style: none;
  margin-block-start: 8px;
  margin-block-end: 8px;
  padding-inline-start: 16px;
  font-size: 1em;
}

#TableOfContents > ul ul {
  list-style: none;
  margin-block-start: 0px;
  margin-block-end: 0px;
  padding-inline-start: 16px;
  font-size: 0.9em;
}

#TableOfContents a {
  display: block;
  border-radius: 4px;
  padding: 4px 4px 4px 4px;
  text-decoration: none;
  color: var(--toc_color);
}

#TableOfContents a:hover {
  background-color: var(--toc_background-color_selected);
  color: var(--toc_color_selected);
}


/* List Page*/

.list_container {
  display: flex;
  flex-direction: column;
}

.list_main_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.section_main_container {
  flex: 1 1 auto;
}

.section_header {
  padding: 8px;
}

.section_body {
  border-bottom: solid 2px #C0C0C0;
}

.page_list {
  padding-inline-start: 20px;
}

.page_list_item {
  display: flex;
  flex-direction: column;
  padding: 8px 8px;
  border-bottom: dashed 1px #C0C0C0;
}

.page_list_item:last-of-type {
  border-bottom: none;
}

.page_list_item > .page_timestamps {
  display: flex;
  flex-direction: row;
  margin: 4px 4px;
  font-size: 0.9em;
  color: var(--page_timestamps_color);
}

.page_timestamps > time {
  margin-right: 1em;
}

.page_list_item > .page_title {
  margin: 4px 4px;
  font-size: 1.2em;
  font-weight: 700;
  color: var(--page-list-title_color);
}

.page_list_item > .page_taxonomies {
  display: flex;
  flex-direction: row;
  justify-content: start;
  margin: 4px 4px;
}

.page_list_item > .page_taxonomies .taxonomy_list::after {
  content: "/";
  margin: 0px 4px;
}

.page_list_item > .page_taxonomies .taxonomy_list:last-of-type::after {
  content: none;
  margin: 0px 0px;
}

.page_list_item > .page_summary {
  font-size: 0.9em;
}

.page_list_item > .page_summary > p {
  margin: 4px 20px;
}

.pagination {
  display: flex;
  flex-direction: row;
  justify-content: start;
  padding-inline-start: 20px;
  list-style: none;
}

.pagination > li {
  flex: none;
  margin: 4px;
}

.pagination > li > a {
  display: inline-block;
  padding: 6px 6px;
  border: solid 1px #A0A0A0;
  border-radius: 4px;
  font-size: 1em;
  text-decoration: none;
  background-color: var(--pagination-button_background-color);
  color: var(--pagination-button_color);
  text-align: center;
}

.pagination > .active > a,
.pagination > li > a:hover {
  box-shadow: none;
  background-color: var(--pagination-button_background-color_active);
  color: var(--pagination-button_color_active);
}

.pagination > .disabled > a {
  box-shadow: none;
  background-color: var(--pagination-button_background-color_disabled);
  color: var(--pagination-button_color_disabled);
}

.pagination > .disabled > a:hover {
  background-color: var(--pagination-button_background-color_disabled);
  color: var(--pagination-button_color_disabled);
}


/* Home Page */

.homepage_container {
  display: flex;
  flex-direction: column;
}

.homepage_main_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.home_main_container {
  flex: 1 1 auto;
}

.homepage_sub_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.recent_container {
  flex: 1 1 auto;
}

.recent_header {
  padding: 8px;
  font-size: 1.1em;
}

.recent_body {
  border-bottom: solid 3px #C0C0C0;
}

.mini_page_list {
  padding-inline-start: 20px;
}

.mini_page_list_item {
  display: flex;
  flex-direction: row;
  margin: 0px 0px;
  padding: 8px 8px;
  border-bottom: dashed 1px #C0C0C0;
}

.mini_page_list_item:last-of-type {
  border-bottom: none;
}

.mini_page_list_item > .page_timestamp {
  flex: 0 0 8em;
  margin: 2px 2px;
  font-size: 0.9em;
  color: var(--page-list-timestamp_color);
}

.mini_page_list_item > .page_title {
  flex: 1 1 auto;
  margin: 4px 4px;
  font-size: 1em;
}


/* Terms Page */

.terms_container {
  display: flex;
  flex-direction: column;
}

.terms_main_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.terms_main {
  flex: 1 1 auto;
}


/* 404 Page */

.notfound_container {
  display: flex;
  flex-direction: column;
}

.notfound_main_container {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.notfound_main {
  flex: 1 1 auto;
}

.notfound_header {
  padding: 8px;
  border-bottom: solid 3px #C0C0C0;
}

.notfound_body {
  padding: 16px;
}


/* Responsive */

@media screen and ( max-width: 1000px ) {

  /* Header */

  .menu_button_container {
    display: block;
  }

  .menu_container {
    flex-direction: column;
  }

  .menu_container {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    right: 0px;
    z-index: 2;
    box-shadow: var(--container_box-shadow);
    background-color: var(--header_background-color);
    transition: opacity 0.2s;
  }

  .menu_trigger:checked + .header_main_container > .menu_button_container > .menu_button {
    background-color: rgba(0, 0, 0, 0.4);
  }

  .menu_trigger:checked ~ .menu_container {
    visibility: visible;
    opacity: 0.95;
  }

  .site_navigation_container {
    border-right: none;
    border-bottom: solid 1px #C0C0C0;
  }

  .navigation_list {
    flex-direction: column;
  }

  /* Main */

  .article_main_container {
    max-width: 100%;
  }

  .single_main_container {
    flex-direction: column-reverse;
  }

  .article_header {
    display: none;
  }

  .article_aside_container {
    flex: 1 1 auto;
  }

  .article_meta_item {
    padding: 4px 8px;
    border-bottom: none;
  }

  .article_meta_key > span {
    display: none;
  }

  .article_meta_item.title {
    display: flex;
    flex-direction: row;
    border-bottom: solid 3px #C0C0C0;
    margin-block-end: 16px;
  }

  .article_meta_item.title > .article_meta_key {
    display: none;
  }

  .article_meta_item.title > .article_meta_value {
    margin-inline-start: 0px;
    margin-block-start: 0.4em;
    margin-block-end: 0.4em;
    font-size: 1.6em;
    font-weight: 700;
    line-height: 1.5em;
  }

  .article_meta_item.timestamp {
    display: inline-block;
    margin-right: 1em;
    font-size: 0.9em;
    color: #606060;
  }

  .article_meta_item.timestamp > .article_meta_key {
    display: inline-block;
  }

  .article_meta_item.timestamp > .article_meta_value {
    display: inline-block;
  }

  .article_meta_item.taxonomy {
    display: flex;
    flex-direction: row;
    justify-content: start;
  }

  .article_meta_item.taxonomy > .article_meta_key {
    flex: 0 1 auto;
  }

  .article_meta_item.taxonomy > .article_meta_value {
    flex: 1 1 auto;
    margin: 0px 0px;
  }

  .card {
    margin: 0px;
    padding: 4px;
    border-radius: 0px;
    box-shadow: none;
  }

  .article_toc {
    position: unset;
    max-height: unset;
    margin: 0px 40px;
    padding: 8px;
    border: solid 1px #C0C0C0;
  }
}