html {
  scroll-behavior: smooth;
}

#top {
  position: absolute;
  top: 0;
  height: 0;
  overflow: hidden;
}

body {
  max-width: 720px;
  margin: auto;
  padding: 20px;
  overflow-wrap: break-word;
  text-align: left;
  font-family: Verdana, "PingFang SC", sans-serif;
  line-height: 1.6;
  background-color: white;
  color: black;
}

a {
  color: dodgerblue;
  text-decoration: none;
}

header a {
  font-weight: bold;
  margin-right: 10px;
}

img {
  display: block;
  margin: auto;
  max-width: 100%;
}

img.fit {
  max-height: 720px;
}

@media (min-width: 1040px) {
  img.pano {
    max-width: none;
    width: 1000px;
    margin-left: -140px;
  }
}

img.pair {
  max-height: 720px;
  margin-bottom: 10px;
}

img.pair:last-child {
  margin-bottom: 0;
}

@media (min-width: 1130px) {
  div.pair_h {
    display: flex;
    gap: 10px;
    justify-content: center;
  }

  div.pair_h img.pair {
    max-width: none;
    max-height: 720px;
    margin-bottom: 0;
  }
}

span.image-title {
  display: block;
  margin: 5px 5px 0 0;
  text-align: right;
  color: gray;
  font-style: italic;
}

table {
  min-width: 50%;
  max-width: 100%;
  margin: auto;
}

mark {
  background-color: lemonchiffon;
  padding: 0 5px;
  border-radius: 5px;
}

code {
  font-family: Menlo, Monaco, "Courier New", monospace;
  font-size: smaller;
  background-color: rgba(211, 211, 211, 0.65);
  margin: 0 2px;
  border-radius: 2px;
}

pre code {
  display: block;
  background-color: whitesmoke;
  overflow-x: auto;
  white-space: pre-wrap;
  border-radius: 10px;
  padding: 20px;
}

blockquote {
  border-left: 2px solid lightgray;
  padding-left: 20px;
  font-style: italic;
}

small p.tags a {
  margin-right: 10px;
}

footer {
  text-align: center;
  padding: 20px;
}

footer a {
  font-weight: bold;
}

span.date {
  font-style: italic;
  color: dimgray;
  font-family: Menlo, Monaco, "Courier New", monospace;
}

ul.page-list {
  list-style-type: none;
  padding: unset;
}

ul.page-list li {
  display: flex;
}

ul.page-list li span {
  flex: 0 0 130px;
}

ul.page-list li a:visited {
  color: mediumpurple;
}

ul.tags li.tag {
  margin-bottom: 20px;
  font-weight: bold;
}

ul.tags li.tag ul {
  font-weight: normal;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: #323232;
    color: lightgray;
  }

  a {
    color: lightblue;
  }

  mark {
    color: lightgray;
    background-color: darkgoldenrod;
  }

  code {
    background-color: #646464;
  }

  pre code {
    background-color: #646464;
  }

  ul.page-list li a:visited {
    color: plum;
  }
}