:root { color-scheme: light; }

html {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
  font-size: 14px;
}

body {
  margin: 0;
  background: #fff;
  color: #000;
  line-height: 1.75;
}

main {
  max-width: 720px;
  margin: 40px auto;
  padding: 0 18px;
}

h1 { font-size: 22px; margin: 0 0 10px; }
h2 { font-size: 18px; margin: 28px 0 10px; }
h3 { font-size: 16px; margin: 22px 0 8px; }

p, ol { margin: 0 0 16px; }
ol { padding-left: 1.3em; }

ul {
  list-style: none;
  padding-left: 0;
  margin: 0 0 16px;
}

ul > li {
  position: relative;
  padding-left: 1.2em;
  margin: 0;
}

ul > li + li {
  margin-top: 6px;
}

ul > li::before {
  content: "-";
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0.7;
}

ul ul {
  margin-top: 2px;
  margin-left: 1.2em;
}

ul ul > li {
  position: relative;
  padding-left: 1.2em;
  margin: 0;
}

ul ul > li + li {
  margin-top: 4px;
}

ul ul > li::before {
  content: "-";
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0.6;
}

li > p:first-child {
  margin-bottom: 0;
}

img { width: 100%; height: auto; }

a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

::selection { background: #e8e8e8; }

.meta { 
  margin-right: 12px;
}
.page-meta { margin-bottom: 24px; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Noto Sans Mono", monospace;
}

code:not([class]) {
  font-size: 0.9em;
  padding: 0.1em 0.4em;
  background: #e8e8e8aa;
}

pre {
  font-size: 12px;
  padding: 16px;
  margin: 18px 0 24px;
  overflow-x: auto;
  border: 1px solid #eee;
}

table {
  width: 100%;
  margin: 18px 0 24px;
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}

th, td {
  border-top: 1px solid #000;
  border-bottom: 1px solid #000;
  padding: 7px;
  text-align: left;
}

blockquote {
  border-left: 1px solid #000;
  padding-left: 15px;
  margin: 18px 0;
}

.footer {
  max-width: 720px;
  margin: 40px auto 20px;
  padding: 0 18px;
  opacity: 0.75;
}

.footer-inner {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #ffffff;
  padding-top: 14px;
}

.footer-right a {
  margin-left: 12px;
}