:root {
  --brand: #1f3a5f;
  --brand-strong: #102845;
  --accent: #d97706;
  --accent-soft: #fef3c7;
  --panel: #f8fafc;
  --panel-strong: #eef3f8;
  --text: #1f2937;
  --muted: #5f6f82;
  --border: #dfe7ef;
  --shadow: rgba(15, 23, 42, 0.08);
}

body {
  color: var(--text);
  background: #ffffff;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}

.navbar {
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px var(--shadow);
  background: rgba(255, 255, 255, 0.96);
}

.navbar-title {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--brand-strong);
}

.navbar .nav-link,
.navbar .nav-item {
  font-weight: 500;
}

#quarto-document-content {
  max-width: 1100px;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  margin: 0 auto;
}

.quarto-title-block {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.quarto-title {
  color: var(--brand-strong);
  font-weight: 800;
}

.sidebar nav[role="doc-toc"] {
  padding-top: 0.75rem;
}

.card-grid,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.resource-group {
  margin: 2rem 0;
}

.resource-group > h3,
.resource-group > h4 {
  margin-bottom: 0.85rem;
  color: var(--brand-strong);
}

.session-card,
.resource-card {
  background: linear-gradient(180deg, #ffffff 0%, var(--panel) 100%);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1.4rem 1.25rem;
  box-shadow: 0 8px 18px var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-bottom: 1rem;
}

.session-card:hover,
.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 22px rgba(31, 58, 95, 0.1);
}

.session-card h3,
.resource-card h3,
.session-card h4,
.resource-card h4 {
  color: var(--brand);
  margin-top: 0;
}

.resource-card ul {
  margin-bottom: 0;
  padding-left: 1.1rem;
}

.card-grid a,
.resource-grid a,
.main-content a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0.35rem;
  padding: 0.8rem 1rem;
  color: var(--text);
}

pre,
code {
  font-size: 0.93em;
}

main.content .math.display {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

pre {
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: #f7f8fa;
}

code {
  color: var(--brand-strong);
}

.table {
  width: 100%;
  overflow-x: auto;
}

main.content img {
  display: block;
  width: 85%;
  max-width: 100%;
  height: auto;
  margin: 1rem auto;
}

main.content .quarto-figure {
  width: 100%;
  max-width: 100%;
  margin: 1rem auto;
}

main.content .quarto-figure > figure {
  display: block;
  width: 100%;
  max-width: 100%;
}

main.content .quarto-figure figcaption {
  width: 85%;
  max-width: 100%;
  margin: 0 auto 1rem;
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .session-card,
  .resource-card {
    padding: 1rem;
  }

  .navbar .navbar-brand {
    font-size: 1rem;
  }
}

/* Keep the reading column inside Quarto's responsive grid. */
#quarto-content > *, main.content, .cell, .cell-output, .cell-output-display,
.cell-output-stdout, .sourceCode, .session-card, .resource-card {
  min-width: 0;
  max-width: 100%;
}
main.content { overflow-wrap: anywhere; }
.cell-output-stdout, .cell-output-stderr { overflow-x: auto; }
pre { max-width: 100%; overflow-x: auto; }
.cell-output-stdout pre { white-space: pre; }
div.sourceCode { overflow-x: auto; }
main.content table { display: block; max-width: 100%; overflow-x: auto; }
.navbar .nav-link, .navbar .navbar-brand, .navbar #quarto-search,
.navbar .quarto-search-button { color: var(--brand-strong); }
.navbar .nav-link:hover, .navbar .nav-link:focus,
.navbar .nav-link.active { color: var(--brand); text-decoration: underline; }
.navbar { --bs-navbar-color: #102845; --bs-navbar-active-color: #102845;
  --bs-navbar-hover-color: #1f3a5f; --bs-navbar-toggler-border-color: #5f6f82; }
main.content a:not(.btn), .sidebar-item a { color: var(--brand); }
.btn-primary { background-color: var(--brand); border-color: var(--brand); color: white; }
.btn-primary:hover, .btn-primary:focus { background-color: var(--brand-strong); color: white; }
.btn-outline-primary { color: var(--brand); border-color: var(--brand); }
.btn-outline-primary:hover { background-color: var(--brand); color: white; }
main.content .btn { white-space: normal; margin: .25rem .3rem .25rem 0; }
main.content h1, main.content h2, main.content h3 { color: var(--brand-strong); }
@media (prefers-reduced-motion: reduce) {
  .session-card, .resource-card { transition: none; }
}