/* Shared site styles. Appearance and feature classes live on the html element. */
/* Native HTML/CSS examples retain their authored colors and light canvas. */
:where(.site-native) {
  color-scheme: only light;
}
:where(.site-article, .site-columns) {
  color-scheme: only light;
  --site-text: #333;
  --site-muted: #666;
  --site-strong: #000;
  --site-menu-hover: #fff;
  --site-inverse: #ccc;
  --site-surface: #fff;
  --site-panel: #ccc;
  --site-band: #999;
  --site-deep-surface: #666;
  --site-frame: #333;
  --site-border: #666;
  --site-rule: #999;
  --site-wallpaper: url(../img/wp/wall.gif);
  --site-link: #33c;
  --site-visited: #399;
  --site-hover: #c66;
  --site-active: #039;
  --site-red: #f36;
  --site-yellow: #f90;
  --site-blue: #00f;
  --site-cyan: #0ff;
  --site-purple: #f0f;
  --site-green: #0f0;
}
/* CSS alone follows OS changes, including before hydration. Print stays light. */
@media screen and (prefers-color-scheme: dark) {
  :where(.site-article, .site-columns) {
    color-scheme: dark;
    --site-text: #e3e7ed;
    --site-muted: #bbc4d0;
    --site-strong: #f4f6fa;
    --site-menu-hover: #f4f6fa;
    --site-inverse: #e3e7ed;
    --site-surface: #181e26;
    --site-panel: #232c37;
    --site-band: #303b49;
    --site-deep-surface: #303b49;
    --site-frame: #758294;
    --site-border: #758294;
    --site-rule: #536171;
    --site-wallpaper: none;
    --site-link: #9bbcff;
    --site-visited: #b9a7ed;
    --site-hover: #ffabb8;
    --site-active: #9fdbff;
    --site-red: #ff829c;
    --site-yellow: #ffbb66;
    --site-blue: #8eb4ff;
    --site-cyan: #6fdfed;
    --site-purple: #eda2f5;
    --site-green: #a0da85;
  }
  /* Explicit foreground samples need the same white canvas as the lesson. */
  :where(.site-content) #contents td[style^='color:'] {
    background: #fff;
    color-scheme: only light;
  }
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* Content layout and responsive advertisements. */
:where(.site-content) .content-columns {
  display: flex;
  align-items: stretch;
}
:where(.site-content) .content-columns > main {
  min-width: 0;
  flex: 1;
}

/* Restore the shared style1 header background for all top pages, including
   consistent border rendering under automatic dark mode. */
:where(.site-content) #main.content-top {
  background: var(--site-panel);
}
:where(.site-content) .content-top #header {
  background: transparent;
}

/* Let the article fill the taller column and keep the page label below it. */
:where(.site-content) .content-top .content-columns > main {
  flex: 0 0 calc(100% - 162px);
  display: flex;
  flex-direction: column;
  background: var(--site-surface);
}
:where(.site-content) .content-top #menu {
  flex: 0 0 162px;
}
:where(.site-content) .content-top #contents {
  flex: 1;
  display: flow-root;
}
:where(.site-content) .content-top #contents .thr {
  float: left;
  width: 160px;
  margin: 0 0 16px;
}
:where(.site-content) .content-top #contents .hal {
  float: left;
  width: 240px;
  margin: 0 0 16px;
}
:where(.site-content) .content-top #contents .xyz {
  clear: both;
  margin: 0;
  line-height: normal;
  color: var(--site-inverse);
  text-align: center;
}
:where(.site-content) .content-top #contents ul {
  margin: 0 0 0 36px;
  line-height: 1.5em;
}
:where(.site-content) .content-top #contents .fl {
  list-style: square;
  margin: 5px 36px 30px;
}
:where(.site-content) .content-top .content-columns > main > #co {
  margin: 0;
  line-height: normal;
}
:where(.site-content) .content-detail #footer #mn,
:where(.site-content) .content-detail #footer #lf {
  /* The legacy ad's 60px bottom margin already includes this separation. */
  margin-top: 0;
}
:where(.site-content) .content-site img {
  max-width: 100%;
}
:where(.site-content) .content-site #contents #ad1 {
  width: auto;
  height: auto;
}
:where(.site-content) .content-site .adsense-main {
  margin: 5px 20px 60px;
  min-height: 280px;
}
:where(.site-content) .content-site .adsbygoogle {
  width: 100%;
}
:where(.site-content) .content-site #menu #am1.adsense-main {
  width: auto;
  height: auto;
  /* A defined 150 × 300 slot avoids auto-selected tall sidebar units. */
  min-height: 300px;
  margin: 8px 6px 30px;
}

/* Authored style1 book pages retain their 482px body and 162px work menu. */
:where(.site-content) .content-sidebar .content-columns > main {
  flex: 0 0 482px;
}
:where(.site-content) .content-sidebar #contents {
  display: flow-root;
}
:where(.site-content) .content-sidebar #menu {
  flex: 0 0 162px;
}

/* Non-top pages without an ad retain margin collapse into the footer. */
:where(.site-content) .content-no-ads:not(.content-top) .content-columns,
:where(.site-content)
  .content-no-ads:not(.content-top)
  .content-columns
  > main {
  display: contents;
}
:where(.site-content) .content-no-ads.content-detail #footer #lf {
  margin-top: 2em;
}
:where(.site-content) .content-site #contents iframe {
  border: none;
  vertical-align: bottom;
}

/* Original stylesheet pages keep intrinsic image widths in automatic tables. */
:where(.site-content) .content-intrinsic-images img {
  max-width: none;
}

/* Common typography, frames and page-specific article/column rules. */

:where(.site-article, .site-columns) body {
  margin: 0;
  padding: 0;
  color: var(--site-text);
  background: var(--site-surface) var(--site-wallpaper);
  font:
    100% 'ＭＳ ゴシック',
    Osaka,
    sans-serif;
}

:where(.site-article, .site-columns) h2 {
  margin: 1px;
  font-size: 12px;
  border: solid 2px var(--site-border);
  color: var(--site-text);
  background: var(--site-band);
}
:where(.site-article, .site-columns) em {
  font-style: normal;
  color: var(--site-red);
}
:where(.site-article, .site-columns) img {
  margin: 0;
  border: none;
}
:where(.site-article) pre {
  margin: 12px 36px;
  padding: 0;
  border: solid 2px var(--site-rule);
  color: var(--site-strong);
  background: var(--site-panel);
}
:where(.site-article, .site-columns) a:link {
  color: var(--site-link);
  text-decoration: none;
}
:where(.site-article, .site-columns) a:visited {
  color: var(--site-visited);
  text-decoration: none;
}
:where(.site-article, .site-columns) a:hover {
  color: var(--site-hover);
  text-decoration: underline;
}
:where(.site-article, .site-columns) a:active {
  color: var(--site-active);
  text-decoration: underline;
}

:where(.site-article, .site-columns) #main {
  width: 644px;
  margin: 0 auto;
  padding: 0;
  border-style: solid;
  border-width: 4px 1px;
  font-size: 0.75em;
}

:where(.site-article) #main {
  border-color: var(--site-border);
  color: var(--site-text);
  background: var(--site-surface);
}

:where(.site-columns) #main {
  border-color: var(--site-border);
  color: var(--site-text);
  background: var(--site-panel);
}

:where(.site-article, .site-columns) #header {
  margin: 1px 1px 0;
}

:where(.site-article) #header {
  border: solid 2px var(--site-frame);
  background: var(--site-panel);
}

:where(.site-columns) #header {
  border: solid 2px var(--site-frame);
}
:where(.site-article, .site-columns) #header h1 {
  margin: 0;
  padding: 16px;
  font-size: 16px;
  text-align: center;
}
:where(.site-article, .site-columns) #header p {
  margin: 0;
  font-size: 12px;
  text-align: right;
}

:where(.site-article) #body {
  display: flex;
}
:where(.site-article) .top {
  width: 482px;
  display: flex;
  flex-direction: column;
}
:where(.site-article) .top > * {
  flex-shrink: 0;
}
:where(.site-article) #contents.top #co {
  margin-top: auto;
}
:where(.site-article, .site-columns) #contents {
  color: var(--site-text);
  background: var(--site-surface);
}

:where(.site-columns) #contents {
  float: left;
  width: 482px;
  margin: 0;
  padding: 0;
}
:where(.site-article, .site-columns) #contents h2 {
  padding: 2px 17px;
}
:where(.site-article, .site-columns)
  #contents
  :is(table, .ls, .ml, .lv)
  :is(th, td):has(> h2) {
  padding: 0;
  border: hidden;
  background: transparent;
}
:where(.site-article, .site-columns) #contents table h2 {
  margin: 1px 0;
  text-align: start;
}
:where(.site-article, .site-columns) #contents h3 {
  margin: 12px 20px 0;
  padding: 0;
  border-bottom: solid 2px var(--site-border);
  color: var(--site-muted);
  background: var(--site-surface);
  font-size: 1em;
}
:where(.site-article) #contents p {
  margin: 0.5em 24px;
  line-height: 1.4em;
}
:where(.site-article, .site-columns) #contents ul {
  list-style: circle;
  padding: 0;
}
:where(.site-article) #contents ul {
  margin: 0.5em 36px;
  line-height: 1.6em;
}
:where(.site-columns) #contents ul {
  margin: 0 0 0 36px;
  line-height: 1.5em;
}
:where(.site-article) #contents ol {
  margin: 1em 20px;
  padding: 0;
}
:where(.site-article) #contents ol li {
  margin: 0 12px 1em;
  padding: 0;
}
:where(.site-article) #contents dl {
  margin: 12px 20px;
  padding: 0;
}
:where(.site-article) #contents dt {
  margin: 0;
  padding: 0 8px;
  border-left: solid 4px var(--site-border);
}
:where(.site-article) #contents dd {
  margin: 0.5em 12px 2em;
  line-height: 1.5em;
}
:where(.site-article) #contents .re {
  margin: 0 0 0 24px;
}
:where(.site-columns) #contents .re {
  margin: 1em 2em 1.5em;
  line-height: 1.5em;
  text-indent: 1em;
}
:where(.site-article) #contents .ls,
:where(.site-article) #contents .lv {
  width: 642px;
  margin: 0 auto;
  border-collapse: collapse;
  font-size: 12px;
}
:where(.site-article) #contents .ml {
  width: 480px;
  margin: 0 1px;
  border-collapse: collapse;
  font-size: 12px;
}
:where(.site-article) #contents th {
  padding: 1px 6px;
  border-style: solid none;
  border-width: 2px;
  border-color: var(--site-rule);
  color: var(--site-muted);
  background: var(--site-panel);
  text-align: left;
}
:where(.site-article) #contents .ls td,
:where(.site-article) #contents .ml td {
  padding: 4px 0 4px 6px;
  border-bottom: solid 1px var(--site-rule);
}
:where(.site-article) #contents .lv td {
  padding: 0 0 0 6px;
  border-right: solid 1px var(--site-rule);
  vertical-align: top;
}
:where(.site-article) #contents .tt {
  background: var(--site-deep-surface);
  color: var(--site-inverse);
}
:where(.site-article, .site-columns) #contents .ri {
  text-align: right;
}
:where(.site-columns) #contents .ri {
  margin: 0;
  padding: 0 2em 0 0;
  line-height: 1.5em;
}
:where(.site-article) #contents .cn {
  text-align: center;
  text-indent: 0;
}
:where(.site-article, .site-columns) #contents #co {
  margin: 0;
}
:where(.site-article, .site-columns) #contents #ad1 {
  width: 336px;
  height: 280px;
  margin: 5px 20px 60px;
}
:where(.site-article) #contents #ad3 {
  width: 468px;
  height: 60px;
  margin: 30px 20px;
}

:where(.site-article, .site-columns) #menu {
  width: 162px;
  color: var(--site-muted);
  background: var(--site-panel);
  font-size: 12px;
}

:where(.site-columns) #menu {
  float: right;
}
:where(.site-article, .site-columns) #menu h2 {
  padding: 2px 3px;
}
:where(.site-article, .site-columns) #menu h3 {
  margin: 0;
  padding: 2px 6px;
  color: var(--site-inverse);
  background: var(--site-band);
  font-size: 12px;
}
:where(.site-article, .site-columns) #menu ul {
  margin: 0 0 12px;
  padding: 0;
}
:where(.site-article, .site-columns) #menu ul li {
  list-style: square;
  margin: 0 0 0 18px;
  padding: 0;
  line-height: 1.35em;
}
:where(.site-article, .site-columns) #menu ul li a {
  display: block;
  width: 144px;
  margin: 0;
  padding: 0;
  color: var(--site-strong);
  line-height: 1.35em;
}
:where(.site-article, .site-columns) #menu ul li a:hover {
  color: var(--site-menu-hover);
  background: var(--site-deep-surface);
}
:where(.site-article, .site-columns) #menu #ad2 {
  width: 160px;
  height: 560px;
}
:where(.site-article, .site-columns) #menu #am1 {
  width: 120px;
  height: 90px;
  margin: 0 13px 30px;
}
:where(.site-article, .site-columns) #menu #am2 {
  width: 120px;
  height: 240px;
  margin: 0 16px;
}

:where(.site-article, .site-columns) #footer {
  font-size: 12px;
}

:where(.site-columns) #footer {
  clear: both;
  margin: 0;
}
:where(.site-article) #footer #mn {
  margin: 2em 0;
  text-align: center;
}
:where(.site-article) #footer #lf {
  margin: 2em 0 0;
}
:where(.site-article) #footer #cr {
  margin: 0;
  padding: 16px;
  color: var(--site-inverse);
  background: var(--site-deep-surface);
  text-align: center;
}
:where(.site-article) #footer #cr a {
  color: var(--site-inverse);
}
@media print {
  :where(.site-article) #contents #ad1,
  :where(.site-article) #contents #ad2 {
    display: none;
  }
}
:where(.site-columns) #contents .thr {
  float: left;
  width: 160px;
  margin: 0 0 16px;
}
:where(.site-columns) #contents .hal {
  float: left;
  width: 240px;
  margin: 0 0 16px;
}
:where(.site-columns) #contents .xyz {
  clear: both;
  margin: 0;
  color: var(--site-inverse);
  background: var(--site-surface);
  text-align: center;
}
:where(.site-columns) #contents ul li ul {
  list-style: square;
  margin: 0 0 0 12px;
}
:where(.site-columns) #contents .fl {
  list-style: square;
  margin: 5px 36px 30px;
}
:where(.site-columns) #contents .im {
  margin: 1em 3em 1.5em;
}
:where(.site-columns) #footer p {
  margin: 0;
  padding: 16px;
  color: var(--site-inverse);
  background: var(--site-deep-surface);
  text-align: center;
}
:where(.site-columns) #footer a {
  color: var(--site-inverse);
}
/* Optional compact tables and color labels; enabled only where authored. */
:where(.site-compact-tables) #contents table {
  width: 442px;
  margin: 20px auto;
  border-collapse: collapse;
  font-size: 12px;
}
:where(.site-compact-tables) #contents th {
  padding: 1px 6px;
  border-style: solid none;
  border-width: 2px;
  border-color: var(--site-rule);
  color: var(--site-muted);
  background: var(--site-panel);
  text-align: left;
}
:where(.site-compact-tables) #contents td {
  padding: 4px 6px;
  border-bottom: solid 1px var(--site-rule);
}
:where(.site-compact-tables) #lin td {
  padding: 2px 6px;
}
:where(.site-compact-tables) #lin .ban {
  width: 200px;
  padding: 2px 0;
}
:where(.site-compact-tables) #lin .ban a.nb {
  display: block;
  width: 196px;
  border: solid 2px var(--site-panel);
  line-height: 36px;
  text-align: center;
}
:where(.site-color-labels) #le {
  float: left;
  width: 320px;
  margin: 0;
  border-right: solid 1px var(--site-rule);
}
:where(.site-color-labels) #ri {
  float: right;
  width: 320px;
  margin: 0;
  border-left: solid 1px var(--site-rule);
}
:where(.site-color-labels) .xyz {
  clear: both;
  margin: 0;
}
:where(.site-color-labels) .red {
  color: var(--site-red);
}
:where(.site-color-labels) .yel {
  color: var(--site-yellow);
}
:where(.site-color-labels) .blu {
  color: var(--site-blue);
}
:where(.site-color-labels) .wat {
  color: var(--site-cyan);
}
:where(.site-color-labels) .pur {
  color: var(--site-purple);
}
:where(.site-color-labels) .gre {
  color: var(--site-green);
}
/* Community pages share the same responsive ad stylesheet. */
/* Height must grow with the responsive creative. Never crop an ad. */
:where(.site-community) .adsense-main,
:where(.site-community) #contents #ad1.adsense-main {
  box-sizing: border-box;
  width: calc(100% - 40px);
  height: auto;
  min-height: 280px;
  margin: 5px 20px 60px;
}
:where(.site-community) .adsense-main > .adsbygoogle {
  display: block;
}
@media print {
  :where(.site-community) .adsense-main {
    display: none;
  }
}