/* -------------------------------------------------------
   Subpage theme — overrides cosmo to match index style
   ------------------------------------------------------- */

:root {
  --text: #333;
  --link: #0072C6;
  --link-hover: #005A9E;
  --border: #e0e0e0;
  --toc-active: #0072C6;
}

/* --- Typography --- */
body {
  font-family: Arial, sans-serif;
  color: var(--text);
  background: #fff;
}

h1, h2, h3, h4, h5, h6 {
  font-family: Arial, sans-serif;
  color: var(--text);
}

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

/* --- Navbar --- */
.navbar {
  background: #fff !important;
  border-bottom: 1px solid var(--border);
  box-shadow: none;
}

.navbar-brand,
.navbar .nav-link {
  color: var(--text) !important;
  font-family: Arial, sans-serif;
  font-size: 0.95rem;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--link) !important;
}

/* --- Main content width --- */
#quarto-content > * {
  max-width: 860px;
}

.page-columns .column-page-left,
.page-columns .column-body {
  max-width: 860px;
}

/* Title block */
#title-block-header h1.title {
  font-size: 1.6rem;
  margin-bottom: 0.2em;
}

#title-block-header .author,
#title-block-header .date {
  font-size: 0.9rem;
  color: #666;
}

/* --- TOC sidebar --- */
#quarto-margin-sidebar {
  font-family: Arial, sans-serif;
  font-size: 0.85rem;
}

#quarto-margin-sidebar .sidebar-title-text,
#quarto-margin-sidebar .toc-title {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #666;
  margin-bottom: 0.5rem;
}

#TOC a,
.sidebar-navigation a {
  color: var(--text);
}

#TOC a:hover,
.sidebar-navigation a:hover {
  color: var(--link);
}

#TOC a.active,
.sidebar-navigation a.active {
  color: var(--toc-active);
  font-weight: 600;
}

#TOC ul {
  padding-left: 0.8rem;
}

/* --- Prose --- */
p {
  line-height: 1.7;
}

blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  color: #555;
  font-style: italic;
  margin-left: 0;
}

/* Code blocks */
pre, code {
  font-size: 0.88rem;
  background: #f5f5f5;
  border: 1px solid var(--border);
  border-radius: 3px;
}

pre {
  padding: 0.75rem 1rem;
}

/* Horizontal rule used as section separator */
hr {
  border: none;
  border-top: 2px solid var(--border);
  margin: 2rem 0;
}

/* --- Footer --- */
#quarto-appendix,
.quarto-secondary-nav {
  font-size: 0.85rem;
  color: #888;
}

/* --- Mobile --- */
@media (max-width: 767px) {
  body { font-size: 15px; }
  .navbar-brand { font-size: 1rem; }
}