/* --- Section 1: Pandoc Layout Helpers --- */
span.smallcaps { font-variant: small-caps; }
span.underline { text-decoration: underline; }
div.column { display: inline-block; vertical-align: top; width: 50%; }
div.hanging-indent { margin-left: 1.5em; text-indent: -1.5em; }
ul.task-list { list-style: none; }

/* --- Section 2: Code Blocks & Containers --- */
div.sourceCode { margin: 1rem 0; }
pre.sourceCode, 
pre:not(.sourceCode) { 
  margin: 10px; 
  padding: 16px 10px 8px 10px; 
  border: 2px solid silver; 
  background-color: ghostwhite; 
  border-radius: 0.25rem;
  /* 横スクロールが必要な場合のための保険 */
  overflow-x: auto; 
}

code { 
  white-space: pre-wrap; 
  word-wrap: break-word; 
}

pre > code.sourceCode > span { 
  display: inline-block; 
  line-height: 1.25; 
}

/* --- Section 3: Line Numbers (pre.numberSource) --- */
pre.numberSource { 
  margin-left: 3em; 
  border-left: 1px solid #aaaaaa; 
  padding-left: 4px; 
}
pre.numberSource code { counter-reset: source-line 0; }
pre.numberSource code > span { position: relative; left: -4em; counter-increment: source-line; }
pre.numberSource code > span > a:first-child::after { 
  content: counter(source-line);
  position: relative; left: -1em; text-align: right; vertical-align: baseline;
  border: none; display: inline-block;
  -webkit-touch-callout: none; -webkit-user-select: none;
  -khtml-user-select: none; -moz-user-select: none;
  -ms-user-select: none; user-select: none;
  padding: 0 4px; width: 4em;
  color: #aaaaaa;
}

/* --- Section 4: Tables, Images, Figures --- */
table { 
  margin-left: auto; 
  margin-right: auto; 
  border-collapse: collapse; 
  border: 1px solid #ccc; 
  margin-bottom: 1rem;
}
th { 
  padding: 2px 6px; 
  border: 1px solid #ccc; 
  background-color: ghostwhite; 
}
td { 
  padding: 2px 6px; 
  border: 1px solid #ccc; 
}
img { 
  display: block; 
  margin-left: auto; 
  margin-right: auto; 
  max-width: 100%; 
  height: auto; 
}
figcaption { text-align: center; margin-top: 0.5rem; color: #666; }

/* --- Section 5: Print Adjustments --- */
@media print {
  pre > code.sourceCode { white-space: pre-wrap; }
  pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
}