/* ef2 site style, shared with titleclassifier (matched to the econometrics
   lecture notes, lecy.github.io/econometrics): navy and burnt orange, Zilla
   Slab headings, Source Sans 3 body text, quiet ruled tables. */

:root {
  --tc-ground: #ffffff;
  --tc-surface: #f3f4f6;
  --tc-ink: #1f2429;
  --tc-ink-mid: #4d565f;
  --tc-ink-soft: #6d7681;
  --tc-rule: #dcdfe4;
  --tc-rule-strong: #c3c8cf;
  --tc-accent: #bd5416;
  --tc-accent-ink: #8f3f10;
  --tc-accent-wash: #fbf0e7;
  --tc-navy: #153243;
  --tc-pumpkin: #dc965a;
  --tc-font-display: "Zilla Slab", Georgia, "Times New Roman", serif;
  --tc-font-body: "Source Sans 3", "Segoe UI", Helvetica, Arial, sans-serif;
}

[data-bs-theme="dark"] {
  --tc-ground: #15181c;
  --tc-surface: #1d2126;
  --tc-ink: #e3e6ea;
  --tc-ink-mid: #a9b2bc;
  --tc-ink-soft: #8b949e;
  --tc-rule: #2d333a;
  --tc-rule-strong: #3d444d;
  --tc-accent: #ee8b4a;
  --tc-accent-ink: #f2a771;
  --tc-accent-wash: #291d14;
  --tc-navy: #102734;
  --bs-body-bg: var(--tc-ground);
  --bs-body-color: var(--tc-ink);
  --bs-link-color: var(--tc-accent-ink);
  --bs-link-color-rgb: 242, 167, 113;
  --bs-link-hover-color: var(--tc-accent);
  --bs-border-color: var(--tc-rule);
  --bs-code-color: var(--tc-accent-ink);
}

body {
  background: var(--tc-ground);
  color: var(--tc-ink);
  font-family: var(--tc-font-body);
  font-synthesis-weight: none;
}

/* ---- navbar ---------------------------------------------------------------- */

.navbar {
  background-color: var(--tc-navy) !important;
  border-bottom: 3px solid var(--tc-accent);
}
.navbar .navbar-brand {
  font-family: var(--tc-font-display);
  font-weight: 700;
  letter-spacing: -.01em;
}
.navbar .nav-link,
.navbar .navbar-brand,
.navbar .nav-text { color: rgba(255, 255, 255, .88) !important; }
.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-item.active > .nav-link,
.navbar .nav-link.active { color: var(--tc-pumpkin) !important; }
.navbar .dropdown-menu { border-color: var(--tc-rule); }
.navbar .dropdown-item.active,
.navbar .dropdown-item:active { background-color: var(--tc-accent); }
.navbar .badge,
.navbar .version { background: rgba(255, 255, 255, .12) !important; color: #fff !important; }

/* ---- headings ---------------------------------------------------------------- */

h1, h2, h3, .h1, .h2, .h3 {
  font-family: var(--tc-font-display);
  color: var(--tc-ink);
  text-wrap: balance;
}
h1, .h1 { font-weight: 700; letter-spacing: -.015em; line-height: 1.08; }
h2, .h2 { font-weight: 600; line-height: 1.16; margin-top: 2.6rem; }
h3, .h3 { font-weight: 600; line-height: 1.24; margin-top: 2rem; }
h4, .h4 {
  font-family: var(--tc-font-body);
  font-size: .8125rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--tc-ink-soft);
  margin-top: 1.9rem;
}
.page-header {
  border-bottom: 1px solid var(--tc-rule);
  padding-bottom: 1.1rem;
  margin-bottom: 1.6rem;
}
.page-header h1 { margin-top: 1.6rem; }
.page-header .author,
.page-header .date,
.page-header small { color: var(--tc-ink-mid); }

/* ---- text ------------------------------------------------------------------- */

a { color: var(--tc-accent-ink); text-decoration-color: rgba(189, 84, 22, .35); text-underline-offset: .15em; }
a:hover { color: var(--tc-accent); text-decoration-color: currentColor; }
a:focus-visible { outline: 2px solid var(--tc-accent); outline-offset: 2px; }
strong, b { font-weight: 700; color: var(--tc-ink); }
li { margin-bottom: .35rem; }
li::marker { color: var(--tc-accent); font-weight: 600; }

blockquote {
  background: var(--tc-accent-wash);
  border-left: none;
  border-radius: 3px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--tc-ink);
}
blockquote p:last-child { margin-bottom: 0; }

/* ---- code ------------------------------------------------------------------- */

pre, div.sourceCode {
  background: var(--tc-surface) !important;
  border: none;
  border-radius: 3px;
}
pre { padding: .9rem 1.1rem; font-size: .84rem; line-height: 1.5; }
p code, li code, td code {
  background: var(--tc-surface);
  color: var(--tc-accent-ink);
  padding: .08em .3em;
  border-radius: 2px;
  font-size: .88em;
}
.btn-copy-ex { color: var(--tc-ink-soft); }

/* ---- tables ----------------------------------------------------------------- */

.contents table, main table {
  border-collapse: collapse;
  width: auto;
  min-width: min(100%, 30rem);
  font-size: .9rem;
  margin: 1.2rem 0 1.6rem;
  font-variant-numeric: tabular-nums;
}
.contents table th, .contents table td,
main table th, main table td {
  padding: .55rem .8rem;
  border: none;
  border-bottom: 1px solid var(--tc-rule);
  vertical-align: top;
  background: transparent;
}
.contents table thead th, main table thead th {
  font-size: .72rem;
  letter-spacing: .02em;
  font-weight: 700;
  color: var(--tc-ink-soft);
  border-bottom: 1.5px solid var(--tc-rule-strong);
  vertical-align: bottom;
}
.contents table tbody tr:last-child td, main table tbody tr:last-child td { border-bottom: none; }
.contents table tbody tr:hover td, main table tbody tr:hover td { background: var(--tc-accent-wash); }
table caption, .table caption {
  caption-side: top;
  text-align: left;
  font-size: .8125rem;
  letter-spacing: .02em;
  font-weight: 700;
  color: var(--tc-ink-soft);
  padding-bottom: .6rem;
}
/* the reference index keeps its own layout */
.ref-index table { min-width: 0; }

/* ---- sidebar and footer --------------------------------------------------------- */

aside h2, #toc h2, .sidebar h2 {
  font-family: var(--tc-font-body);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--tc-ink-soft);
}
#toc .nav-link.active, nav[data-toggle="toc"] .nav-link.active {
  color: var(--tc-accent-ink);
  border-left-color: var(--tc-accent) !important;
  background: transparent;
}
footer {
  border-top: 1px solid var(--tc-rule);
  color: var(--tc-ink-soft);
  font-size: .8125rem;
}

/* ---- home page -------------------------------------------------------------- */

.template-home .page-header { border-bottom: none; margin-bottom: .4rem; }
.template-home .page-header h1 { font-size: 2.6rem; margin-top: 2rem; }
.template-home main > .section > p:first-of-type strong,
.template-home main p:first-of-type > strong:only-child {
  font-family: var(--tc-font-display);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.35;
  color: var(--tc-accent-ink);
}

@media (max-width: 640px) {
  .template-home .page-header h1 { font-size: 2.1rem; }
  .contents table, main table { min-width: 0; font-size: .82rem; }
}