/* Academic Paper Styling */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,600;1,400&family=Source+Code+Pro&display=swap');

:root {
  --text-color: #1a1a1a;
  --link-color: #0066cc;
  --bg-color: #ffffff;
  --border-color: #e0e0e0;
  --code-bg: #f5f5f5;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 12pt;
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

body {
  font-family: 'EB Garamond', Georgia, 'Times New Roman', serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

/* Title */
header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

h1.title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

/* Headings */
h1, h2, h3, h4 {
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  line-height: 1.3;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }
h4 { font-size: 1rem; font-style: italic; }

/* Paragraphs */
p {
  margin: 0.8em 0;
  text-align: justify;
  hyphens: auto;
}

/* Abstract */
#abstract {
  background: #fafafa;
  padding: 1rem 1.5rem;
  border-left: 3px solid #666;
  margin: 1.5rem 0;
}

#abstract h2 {
  font-size: 1rem;
  margin-top: 0;
}

/* Lists */
ul, ol {
  margin: 0.8em 0;
  padding-left: 2em;
}

li {
  margin: 0.3em 0;
}

/* Code */
code {
  font-family: 'Source Code Pro', 'Consolas', monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

pre {
  background: var(--code-bg);
  padding: 1em;
  overflow-x: auto;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

pre code {
  padding: 0;
  background: none;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 0.95em;
}

th, td {
  padding: 0.5em 0.75em;
  text-align: left;
  border: 1px solid var(--border-color);
}

th {
  background: #f5f5f5;
  font-weight: 600;
}

caption {
  font-style: italic;
  margin-bottom: 0.5em;
}

/* Figures */
figure {
  margin: 1.5em 0;
  text-align: center;
}

figure img {
  max-width: 100%;
  height: auto;
}

figcaption {
  font-size: 0.9em;
  font-style: italic;
  margin-top: 0.5em;
  color: #555;
}

/* Blockquotes */
blockquote {
  margin: 1em 2em;
  padding-left: 1em;
  border-left: 2px solid var(--border-color);
  font-style: italic;
  color: #555;
}

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

a:hover {
  text-decoration: underline;
}

/* Math */
.math {
  font-family: 'Times New Roman', serif;
}

/* Table of Contents */
nav#TOC {
  background: #fafafa;
  padding: 1rem 1.5rem;
  margin: 1rem 0 2rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

nav#TOC > ul {
  margin: 0;
  padding-left: 1.5em;
}

nav#TOC a {
  color: var(--text-color);
}

/* References */
.references {
  font-size: 0.95em;
}

.references p {
  text-align: left;
  margin: 0.5em 0;
  padding-left: 2em;
  text-indent: -2em;
}

/* Keywords */
.keywords {
  font-size: 0.9em;
  margin-top: 1rem;
}

/* Print styles */
@media print {
  body {
    max-width: none;
    padding: 0;
    font-size: 11pt;
  }

  nav#TOC {
    page-break-after: always;
  }

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

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

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

  a[href^="http"]::after {
    content: none;
  }
}

@page {
  size: A4;
  margin: 2.5cm;
}