/* Press PDF Export — Default PDF Stylesheet */

/* === Base === */
:root {
  --text-color: #1a1a1a;
  --bg-color: #ffffff;
  --code-bg: #f5f5f5;
  --border-color: #e0e0e0;
  --accent-color: #7c3aed;
}

@page {
  size: A4;
  margin: 25mm;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 11pt;
  line-height: 1.6;
  color: var(--text-color);
  max-width: 100%;
}

/* === Headings === */
h1, h2, h3, h4, h5, h6 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.3;
  page-break-after: avoid;
}

h1 {
  font-size: 2em;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.3em;
}

h2 {
  font-size: 1.5em;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.2em;
}

h3 { font-size: 1.25em; }
h4 { font-size: 1.1em; }
h5 { font-size: 1em; }
h6 { font-size: 0.9em; color: #666; }

/* === Paragraphs === */
p {
  margin: 0.8em 0;
  orphans: 3;
  widows: 3;
}

/* === Links === */
a {
  color: var(--accent-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* === Images === */
img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1em auto;
  border-radius: 4px;
}

/* Pandoc-style image attributes */
img[width] {
  display: inline-block;
}

figure {
  margin: 1.5em 0;
  text-align: center;
  page-break-inside: avoid;
}

figcaption {
  font-size: 0.9em;
  color: #666;
  margin-top: 0.5em;
}

/* === Code === */
code {
  font-family: "Fira Code", "JetBrains Mono", "SF Mono", "Cascadia Code", Consolas, monospace;
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1em;
  overflow-x: auto;
  page-break-inside: avoid;
  margin: 1em 0;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.85em;
  line-height: 1.5;
}

/* Pandoc code blocks */
.sourceCode {
  background: var(--code-bg);
}

pre.sourceCode {
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

/* === Blockquotes === */
blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--accent-color);
  background: #f8f8f8;
  color: #555;
}

blockquote p {
  margin: 0.3em 0;
}

/* === Callouts (Obsidian-style) === */
.callout {
  margin: 1.5em 0;
  padding: 1em;
  border-radius: 8px;
  border-left: 4px solid;
  page-break-inside: avoid;
}

.callout-title {
  font-weight: 600;
  font-size: 1.05em;
  margin-bottom: 0.5em;
}

.callout-body {
  font-size: 0.95em;
}

.callout-body p {
  margin: 0.3em 0;
}

/* Callout type colors */
.callout-note { border-color: #448aff; background: #e8f0fe; }
.callout-note .callout-title { color: #1a73e8; }

.callout-tip { border-color: #00bfa5; background: #e0f7fa; }
.callout-tip .callout-title { color: #00897b; }

.callout-important { border-color: #7c4dff; background: #ede7f6; }
.callout-important .callout-title { color: #651fff; }

.callout-warning { border-color: #ff9100; background: #fff3e0; }
.callout-warning .callout-title { color: #e65100; }

.callout-caution { border-color: #ff5252; background: #ffebee; }
.callout-caution .callout-title { color: #d50000; }

.callout-abstract { border-color: #448aff; background: #e8eaf6; }
.callout-abstract .callout-title { color: #283593; }

.callout-info { border-color: #448aff; background: #e3f2fd; }
.callout-info .callout-title { color: #1565c0; }

.callout-todo { border-color: #448aff; background: #e8f0fe; }
.callout-todo .callout-title { color: #1a73e8; }

.callout-example { border-color: #7c4dff; background: #f3e5f5; }
.callout-example .callout-title { color: #7b1fa2; }

.callout-quote { border-color: #9e9e9e; background: #fafafa; }
.callout-quote .callout-title { color: #616161; }

.callout-success { border-color: #00c853; background: #e8f5e9; }
.callout-success .callout-title { color: #2e7d32; }

.callout-question { border-color: #ff6d00; background: #fff8e1; }
.callout-question .callout-title { color: #e65100; }

.callout-failure { border-color: #ff1744; background: #fce4ec; }
.callout-failure .callout-title { color: #c62828; }

.callout-danger { border-color: #d50000; background: #ffebee; }
.callout-danger .callout-title { color: #b71c1c; }

.callout-bug { border-color: #f44336; background: #fbe9e7; }
.callout-bug .callout-title { color: #bf360c; }

/* === Tables === */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  page-break-inside: avoid;
}

thead {
  background: #f0f0f0;
}

th, td {
  padding: 0.5em 0.8em;
  border: 1px solid var(--border-color);
  text-align: left;
}

th {
  font-weight: 600;
}

tbody tr:nth-child(even) {
  background: #fafafa;
}

/* === Lists === */
ul, ol {
  margin: 0.5em 0;
  padding-left: 2em;
}

li {
  margin: 0.3em 0;
}

li > ul, li > ol {
  margin: 0.2em 0;
}

/* Task lists */
li.task-list-item {
  list-style: none;
  margin-left: -1.5em;
}

li.task-list-item input[type="checkbox"] {
  margin-right: 0.5em;
}

/* === Horizontal Rule === */
hr {
  border: none;
  border-top: 2px solid var(--border-color);
  margin: 2em 0;
}

/* === Math === */
.math-display {
  margin: 1.5em 0;
  text-align: center;
  overflow-x: auto;
}

.math-inline {
  font-style: italic;
}

/* === Mark (highlights) === */
mark {
  background: #fff176;
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

/* === Superscript / Subscript === */
sup { font-size: 0.75em; vertical-align: super; }
sub { font-size: 0.75em; vertical-align: sub; }

/* === Print adjustments === */
@media print {
  body {
    font-size: 10pt;
  }

  h1, h2, h3 {
    page-break-after: avoid;
  }

  pre, blockquote, table, .callout, figure {
    page-break-inside: avoid;
  }

  a {
    color: var(--accent-color);
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #999;
  }
}