/* ---------------------------------------------------------------
   Professional article styling for the TS attribution explainer
   --------------------------------------------------------------- */

:root {
  --accent: #2c5f7c;
  --accent-dark: #1d4256;
  --text-body: #2b2f33;
  --text-muted: #5f6b72;
  --border-soft: #e2e6e9;
  --bg-soft: #f7f9fa;
}

body {
  color: var(--text-body);
  font-size: 1.08rem;
  line-height: 1.72;
}

/* Title block ---------------------------------------------------- */

#title-block-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--accent);
}

#title-block-header .title {
  font-weight: 700;
  color: var(--accent-dark);
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

#title-block-header .subtitle {
  color: var(--text-muted);
  font-weight: 400;
}

#title-block-header.quarto-title-block.default .quarto-title-meta-author {
  display: block;
}

.quarto-title-meta-author .quarto-title-meta-heading {
  display: none;
}

.quarto-title-meta-contents {
  font-size: 0.92em;
  line-height: 1.4;
}

.quarto-title-meta-contents p.author {
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 0.15em;
}

.quarto-title-meta-contents p.affiliation {
  color: var(--text-muted);
  margin-bottom: 0;
}

#title-block-header .quarto-title-meta {
  margin-top: 0.5rem;
  color: var(--text-muted);
}

#title-block-header .quarto-title-meta .quarto-title-meta-heading {
  margin-top: 0;
}

/* Headings --------------------------------------------------------*/

h2 {
  color: var(--accent-dark);
  font-weight: 700;
  margin-top: 3rem;
  padding-top: 0.25rem;
  border-top: 1px solid var(--border-soft);
}

h1 + h2,
#title-block-header + h2 {
  border-top: none;
}

h3 {
  color: var(--accent);
  font-weight: 600;
  margin-top: 2.25rem;
}

/* Section lead sentence ------------------------------------------ */

.lead-sentence {
  font-size: 1.22rem;
  font-style: italic;
  color: var(--accent-dark);
  font-weight: 500;
  line-height: 1.5;
  margin: 0.25rem 0 1.5rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--accent);
}

/* Abstract callout -------------------------------------------------*/

div.callout-note.callout-style-default {
  border-left-color: var(--accent);
}

div.callout-note .callout-title-container {
  font-weight: 700;
  color: var(--accent-dark);
}

/* Figures -----------------------------------------------------------*/

.quarto-figure {
  margin: 2.25rem auto;
  text-align: center;
}

.quarto-figure img {
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(30, 40, 50, 0.08);
  padding: 0.75rem;
  background: #fff;
  max-width: 100%;
  height: auto;
}

/* Model equations ---------------------------------------------------*/

.equation-block {
  margin: 1.5rem 0;
}

/* References --------------------------------------------------------*/

#references ol,
#refs ol {
  padding-left: 1.4rem;
}

#references li,
#refs li {
  margin-bottom: 0.6rem;
  color: var(--text-body);
}

/* Funding / disclosures section -------------------------------------*/

#funding-and-disclosures {
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* Table of contents ---------------------------------------------------*/

#TOC {
  font-size: 0.92rem;
}

#TOC .toc-active {
  color: var(--accent);
  font-weight: 600;
}

/* Links --------------------------------------------------------------*/

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

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