:root {
  --ink: #111111;
  --paper: #ffffff;
  --cream: #f2efe6;
  --rule: #b6b6b6;
  --muted: #4a4a4a;
  --code-bg: #f5f5f5;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: "STIX Two Text", Times, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1.5;
  text-align: justify;
  hyphens: auto;
}

.page {
  max-width: 1100px;
  margin: 36px auto 64px;
  padding: 40px 48px 60px;
  background: var(--paper);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.paper-header {
  text-align: center;
  margin-bottom: 16px;
}

.paper-header h1 {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 8px;
}

.authors,
.affiliation,
.date {
  margin: 2px 0;
  font-size: 14px;
  color: var(--muted);
}

.paper-header hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 16px 0 0;
}

.abstract {
  margin: 18px 0 24px;
  padding: 0 24px;
}

.abstract h2 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
}

.paper-body {
  column-count: 2;
  column-gap: 32px;
  column-rule: 1px solid var(--rule);
}

.paper-body section {
  break-inside: avoid;
  margin-bottom: 12px;
}

.paper-body h2 {
  font-size: 15px;
  font-weight: 600;
  margin: 12px 0 6px;
  text-align: left;
}

.paper-body p {
  margin: 0 0 10px;
}

pre,
code {
  font-family: "IBM Plex Mono", "Courier New", monospace;
  font-size: 13px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  padding: 10px 12px;
  overflow: auto;
  margin: 8px 0 12px;
}

.references {
  column-span: all;
  font-size: 13px;
  margin-top: 8px;
}

.references h2 {
  margin: 16px 0 8px;
}

.references p {
  margin: 0 0 6px;
  padding-left: 18px;
  text-indent: -18px;
}

@media (max-width: 800px) {
  .page {
    margin: 0;
    padding: 28px 20px 40px;
    box-shadow: none;
  }

  .paper-body {
    column-count: 1;
    column-rule: none;
  }

  .abstract {
    padding: 0;
  }
}