/*
 * Academic Marp (acarp) Theme
 * Version: 1.0.0
 * License: MIT
 * Repository: https://git.samsci.com/cgit.cgi/acarp-marp-theme/
 * 
 * A minimal, grid-based theme for Marp presentations designed for academic content.
 * Grid-only layouts - no flexbox, no utility classes, explicit contracts.
 */

/* @theme acarp */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:wght@400;700&display=swap');

/* Import syntax highlighting theme */
@import url('https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.9.0/build/styles/github.min.css');

/* Academic Marp (acarp) Theme Base
   Grid-only layout system. No flexbox. No utility classes.
   Explicit grid contracts for all layouts.
*/

:root {
  --slide-width: 1280px;
  --slide-height: 720px;
  --padding: 70px;
  --title-top: 40px;
  --color-background: #fdfcff;
  --color-background-code: #f2f1f4;
  --color-foreground: #202228;
  --color-highlight: #009dd5;
  --color-highlight-hover: #087eaa;
  --color-highlight-heading: #33b1dd;
}

/* Base section styling */
section {
  /* Visual appearance */
  background: var(--color-background);
  color: var(--color-foreground);
  
  /* Layout and positioning */
  display: block;
  position: relative;
  width: var(--slide-width);
  height: var(--slide-height);
  padding: 30px var(--padding);
  z-index: 0;
  
  /* Typography */
  font-family: 'EB Garamond', 'Times New Roman', serif;
  font-size: 28px;
  letter-spacing: 1px;
  line-height: 1.4;
  
  /* Text behavior */
  text-align: left;
  word-wrap: break-word;
}

/* Just change the color and styling of Marp's default pagination */
section::after {
  color: #888888 !important;
  font-size: 18px !important;
  font-family: 'EB Garamond', 'Times New Roman', serif !important;
}

/* Hide pagination on title slides */
section.title::after {
  display: none !important;
}

/* Logo support - top right corner */
section:not(.title)::before {
  content: '';
  position: absolute;
  top: var(--logo-top, 20px);
  right: var(--logo-right, 20px);
  width: var(--logo-width, 100px);
  height: var(--logo-height, 40px);
  background-image: var(--logo-image, none);
  background-repeat: no-repeat;
  background-position: right center;
  background-size: contain;
  opacity: var(--logo-opacity, 0.7);
  z-index: 1;
}



section:not([data-marpit-pagination])::after {
  display: none;
}

/* Typography */
/* Remove top margin from first element and last element */
section > *:first-child,
section[data-header] > :nth-child(2) {
  margin-top: 0;
}

section > *:last-child,
section[data-footer] > :nth-last-child(2) {
  margin-bottom: 0;
}

/* Paragraph and blockquote spacing */
section p, section blockquote {
  margin: 0 0 15px;
}

/* Heading spacing and sizing */
section h1, section h2, section h3, section h4, section h5, section h6 {
  margin: 15px 0 30px;
}

/* Highlight styling for bold text in headings */
section h1 strong, section h2 strong, section h3 strong,
section h4 strong, section h5 strong, section h6 strong {
  color: var(--color-highlight-heading);
  font-weight: inherit;
}

/* Auto-scaling constraint for headings */
section h1::part(auto-scaling),
section h2::part(auto-scaling),
section h3::part(auto-scaling),
section h4::part(auto-scaling),
section h5::part(auto-scaling),
section h6::part(auto-scaling) {
  max-height: 660px;
}

/* Heading font sizes */
section h1 { font-size: 2.2em; }
section h2 { font-size: 1.8em; }
section h3 { font-size: 1.5em; }
section h4 { font-size: 1.3em; }
section h5 { font-size: 1.1em; letter-spacing: 1px; }
section h6 { font-size: 0.9em; letter-spacing: 1px; }

/* Code and preformatted text */
/* Inline code styling */
code {
  font-family: Monaco, monospace;
  letter-spacing: 0;
}

/* Background for inline code */
section > code,
section *:not(pre) > code {
  background: var(--color-background-code);
  color: var(--color-foreground);
  margin: -0.2em 0.2em 0.2em;
  padding: 0.15em 0.3em;
  border-radius: 2px;
  font-size: 0.85em;
  border: 1px solid rgba(0, 0, 0, 0.08);
  font-family: Monaco, monospace;
  letter-spacing: -0.02em;
}

/* Code block styling */
pre {
  filter: drop-shadow(0 4px 4px rgba(0, 0, 0, 0.2));
  font-size: 70%;
  line-height: 1.15;
  margin: 15px 0 30px;
  text-align: left;
  padding: 0;
  overflow-x: auto;
  border-radius: 6px;
  position: relative;
}

/* Hide scrollbar when pre is inside a width-constrained container */
div[style*="max-width"] pre {
  overflow-x: hidden;
}

/* Add subtle background pattern for code blocks */
pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-highlight), var(--color-highlight-hover));
  border-radius: 6px 6px 0 0;
}

/* Code block content styling */
pre > code {
  background: var(--color-background-code);
  box-sizing: content-box;
  color: var(--color-foreground);
  display: block;
  margin: 0 auto;
  min-width: 456px;
  padding: 0.8em 1em;
  font-size: 0.9em;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Enhanced syntax highlighting for academic theme - override github theme */
pre code .hljs-keyword,
.hljs-keyword {
  color: #d73a49 !important;
  font-weight: 600 !important;
}

pre code .hljs-string,
.hljs-string {
  color: #032f62 !important;
}

pre code .hljs-comment,
.hljs-comment {
  color: #6a737d !important;
  font-style: italic;
}

pre code .hljs-number,
.hljs-number {
  color: #005cc5 !important;
}

pre code .hljs-function,
.hljs-function {
  color: #6f42c1 !important;
}

pre code .hljs-variable,
.hljs-variable {
  color: #24292e !important;
}

pre code .hljs-class,
.hljs-class {
  color: #6f42c1 !important;
  font-weight: 600 !important;
}

pre code .hljs-tag,
.hljs-tag {
  color: #22863a !important;
}

/* Language-specific highlights */
pre code .hljs-built_in,
.hljs-built_in {
  color: #e36209 !important;
}

pre code .hljs-operator,
.hljs-operator {
  color: #d73a49 !important;
}

pre code .hljs-punctuation,
.hljs-punctuation {
  color: #586069 !important;
}

/* Additional syntax elements */
pre code .hljs-title,
.hljs-title {
  color: #6f42c1 !important;
  font-weight: 600 !important;
}

pre code .hljs-params,
.hljs-params {
  color: #24292e !important;
}

pre code .hljs-attr,
.hljs-attr {
  color: #6f42c1 !important;
}

pre code .hljs-name,
.hljs-name {
  color: #22863a !important;
}

/* Math formulas */
math {
  font-size: 1.1em;
  display: block !important;
  margin: 0.8em 0 0.8em 1.5em !important;
  text-align: left !important;
}

/* MathML and Marp equation rendering */
section span[data-math],
section .math {
  display: block !important;
  margin: 0.8em 1.5em !important;
  text-align: left !important;
  padding-left: 1.5em;
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

/* Vertical spacing utilities */
.vspace-small { margin-top: 1em !important; }
.vspace-medium { margin-top: 2em !important; }
.vspace-large { margin-top: 3em !important; }
.vspace-xlarge { margin-top: 4em !important; }

/* Spacing that works on any element */
.push-down { margin-bottom: 1.5em !important; }
.push-up { margin-top: 1.5em !important; }

/* Center figures and their content */
.centered-figure {
  text-align: center;
}

/* Auto-center images that are alone in a paragraph */
section p > img:only-child {
  display: block;
  margin: 0 auto;
}

/* Citation utility - bottom left corner */
.cite {
  position: absolute;
  bottom: 30px;
  left: var(--padding);
  font-size: 0.7em;
  color: #888888;
  opacity: 0.9;
}

/* ============================================================================
   LAYOUT: title
   
   Centered title slide for cover pages.
   ============================================================================ */

section.title {
  text-align: center;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  position: relative;
}

/* Wrapper for title content to ensure proper centering */
section.title > * {
  flex: 0 0 auto;
}

section.title > h1 {
  font-size: 64px;
  margin: 0;
  padding: 0;
}

section.title > h2 {
  font-size: 24px;
  color: #666;
  margin: 0.5em 0 0 0;
  padding: 0;
  font-weight: normal;
  letter-spacing: 1px;
}

/* Images in title slides behave normally */
section.title > img {
  margin: 2em 0;
  max-width: 80%;
  height: auto;
}

/* Ensure proper title slide alignment in fullscreen mode */
div.marpit > svg > foreignObject > section.title,
svg.marpit > foreignObject > section.title,
.marpit svg > foreignObject > section.title {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

/* ============================================================================
   LAYOUT: layout-2col
   
   Two-column layout: left and right columns with title at top.
   
   Grid contract:
   ┌─────────────────────────────┐
   │         title               │
   ├──────────────┬──────────────┤
   │              │              │
   │  left-col    │  right-col   │
   │              │              │
   ├──────────────┴──────────────┤
   │         pagination          │
   └─────────────────────────────┘
   
   Grid areas: title, left, right, footer
   Default gap: 2em
   Columns: 1fr 1fr (equal)
   ============================================================================ */

section.layout-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "title title"
    "left right"
    "buffer buffer";
  row-gap: 1em;
  column-gap: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
}

section.layout-2col > h1:first-child,
section.layout-2col > h2:first-child,
section.layout-2col > h3:first-child {
  grid-area: title;
  padding: 30px 70px 0 70px;
  margin: 15px 0 0;
  position: static;
}

section.layout-2col .left-column {
  grid-area: left;
  padding: 0 1em 0 70px;
  min-height: 0;
}

section.layout-2col .right-column {
  grid-area: right;
  padding: 0 150px 0 1em;
  min-height: 0;
}

section.layout-2col ul,
section.layout-2col ol {
  margin: 0 0 15px;
}

section.layout-2col pre {
  margin: 15px 0 15px;
}

section.layout-2col::after {
  position: absolute;
  bottom: 30px;
  right: 70px;
  color: #888888 !important;
  font-size: 18px !important;
  font-family: 'EB Garamond', 'Times New Roman', serif !important;
}

section.layout-2col img {
  max-width: 90%;
  max-height: 90%;
  height: auto;
  width: auto;
  object-fit: contain;
  display: block;
}

/* ============================================================================
   SYNTAX HIGHLIGHTING OVERRIDE
   
   Force override of highlight.js theme colors for consistent academic styling.
   ============================================================================ */

/* Base code block colors */
pre {
  --hljs-bg: var(--color-background-code) !important;
  --hljs-fg: var(--color-foreground) !important;
  background: var(--hljs-bg) !important;
}

pre code {
  background: var(--hljs-bg) !important;
  color: var(--hljs-fg) !important;
}

/* Syntax-specific colors with maximum specificity */
section pre code .token.keyword,
section pre code .hljs-keyword,
.token.keyword,
.hljs-keyword {
  color: #d73a49 !important;
  font-weight: 600 !important;
}

section pre code .token.string,
section pre code .hljs-string,
.token.string,
.hljs-string {
  color: #032f62 !important;
}

section pre code .token.comment,
section pre code .hljs-comment,
.token.comment,
.hljs-comment {
  color: #6a737d !important;
  font-style: italic !important;
}

section pre code .token.number,
section pre code .hljs-number,
.token.number,
.hljs-number {
  color: #005cc5 !important;
}

section pre code .token.function,
section pre code .hljs-function,
.token.function,
.hljs-function {
  color: #6f42c1 !important;
}

section pre code .token.class-name,
section pre code .hljs-class,
.token.class-name,
.hljs-class {
  color: #6f42c1 !important;
  font-weight: 600 !important;
}

section pre code .token.tag,
section pre code .hljs-tag,
.token.tag,
.hljs-tag {
  color: #22863a !important;
}

section pre code .token.builtin,
section pre code .hljs-built_in,
.token.builtin,
.hljs-built_in {
  color: #e36209 !important;
}

section pre code .token.operator,
section pre code .hljs-operator,
.token.operator,
.hljs-operator {
  color: #d73a49 !important;
}

section pre code .token.punctuation,
section pre code .hljs-punctuation,
.token.punctuation,
.hljs-punctuation {
  color: #586069 !important;
}

/* Additional syntax elements */
section pre code .token.title,
section pre code .hljs-title,
.token.title,
.hljs-title {
  color: #6f42c1 !important;
  font-weight: 600 !important;
}

section pre code .token.parameter,
section pre code .hljs-params,
.token.parameter,
.hljs-params {
  color: #24292e !important;
}

section pre code .token.attr-name,
section pre code .hljs-attr,
.token.attr-name,
.hljs-attr {
  color: #6f42c1 !important;
}

section pre code .token.attr-value,
section pre code .hljs-string,
.token.attr-value {
  color: #032f62 !important;
}