@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url("assets/fonts/source-serif-4/SourceSerif4Variable-Roman.woff2")
    format("woff2");
}

@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url("assets/fonts/source-serif-4/SourceSerif4Variable-Italic.woff2")
    format("woff2");
}

:root {
  --yp-serif: "Source Serif 4", "Songti SC", STSong, SimSun, serif;
  --yp-ink: #3f352f;
  --yp-muted: #75675d;
  --yp-paper: #f7f1e8;
  --yp-surface: #fffaf2;
  --yp-accent: #a8654a;
  --yp-accent-dark: #70473a;
  --yp-accent-soft: #ead8cb;
  --yp-sage: #7f8a72;
  --yp-ochre: #b37b4d;
  --yp-rule: #e4d6c8;
  --bs-body-bg: var(--yp-paper);
  --bs-body-color: var(--yp-ink);
  --bs-primary: var(--yp-accent);
  --bs-link-color: var(--yp-accent);
  --bs-link-hover-color: var(--yp-accent-dark);
  --bs-border-color: var(--yp-rule);
}

body {
  color: var(--yp-ink);
  background: var(--yp-paper);
  font-family: var(--yp-serif);
  font-optical-sizing: auto;
  font-weight: 450;
  line-height: 1.72;
}

.navbar {
  background: linear-gradient(110deg, #59473d, #806354);
  box-shadow: 0 1px 0 rgb(255 255 255 / 12%);
}

.navbar-brand {
  padding-block: 0.25rem;
}

.navbar-brand .navbar-title {
  display: none;
}

.navbar-logo,
.navbar-brand img {
  display: block;
  width: auto;
  height: 54px;
  max-height: 54px;
}

h1,
h2,
h3 {
  color: #493a32;
  font-weight: 600;
  letter-spacing: -0.015em;
}

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

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

.bg-primary .navbar-nav .show > .nav-link,
.bg-primary .navbar-nav .nav-link.active,
.bg-primary .navbar-nav .nav-link:hover,
.bg-primary .navbar-nav .nav-link:focus {
  color: #f0d5c7 !important;
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link,
.list-group-item.active,
.dropdown-item.active,
.dropdown-item:active {
  color: var(--yp-surface);
  border-color: var(--yp-accent);
  background-color: var(--yp-accent);
}

.quarto-listing-category .category.active {
  padding-inline: 0.35rem;
  border-radius: 0.25rem;
  color: var(--yp-accent-dark);
  background: var(--yp-accent-soft);
}

.page-link {
  color: var(--yp-accent-dark);
  border-color: var(--yp-rule);
  background-color: var(--yp-surface);
}

.page-link:hover,
.page-link:focus {
  color: var(--yp-accent-dark);
  border-color: #d2b7a5;
  background-color: #f0e2d6;
  box-shadow: 0 0 0 0.2rem rgb(168 101 74 / 18%);
}

.page-item.active .page-link {
  color: var(--yp-surface);
  border-color: var(--yp-accent);
  background-color: var(--yp-accent);
}

.page-item.disabled .page-link {
  color: #9c8d82;
  border-color: var(--yp-rule);
  background-color: #f1e9df;
}

.btn-primary {
  border-color: var(--yp-accent);
  background-color: var(--yp-accent);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  border-color: var(--yp-accent-dark);
  background-color: var(--yp-accent-dark);
}

.quarto-title .quarto-categories .quarto-category,
.listing-category {
  border-color: #d8c5b4;
  color: var(--yp-accent-dark);
  background: #fbf4eb;
}

.quarto-listing-grid .card {
  border: 1px solid var(--yp-rule);
  border-radius: 0.75rem;
  background: var(--yp-surface);
  box-shadow: 0 5px 18px rgb(92 68 52 / 6%);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.quarto-listing-grid .card:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 24px rgb(92 68 52 / 12%);
}

pre,
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

blockquote {
  border-left-color: var(--yp-accent);
  color: var(--yp-muted);
}

div.sourceCode,
pre.sourceCode {
  border-color: #dfd0c2;
  background: #f3eadf;
}

table > thead {
  background: #f1e7db;
}

.sidebar nav[role="doc-toc"] ul > li > a.active,
.sidebar-navigation .active {
  color: var(--yp-accent-dark);
  font-weight: 650;
}

.page-footer {
  border-top: 1px solid var(--yp-rule);
  color: var(--yp-muted);
}

#quarto-appendix.default .quarto-appendix-contents {
  border-color: var(--yp-rule);
  background: var(--yp-surface);
}

#quarto-appendix.default .quarto-appendix-heading {
  color: var(--yp-accent-dark);
}

/* Home portal */

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin: 0 0 3rem;
}

.portal-card {
  position: relative;
  display: flex;
  min-height: 330px;
  flex-direction: column;
  padding: clamp(1.6rem, 3.5vw, 2.5rem);
  overflow: hidden;
  border: 1px solid var(--yp-rule);
  border-radius: 1rem;
  color: var(--yp-ink);
  background: var(--yp-surface);
  box-shadow: 0 10px 30px rgb(92 68 52 / 8%);
  text-decoration: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.portal-card::after {
  position: absolute;
  right: -3.5rem;
  bottom: -4rem;
  width: 12rem;
  height: 12rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--card-accent) 10%, transparent);
  content: "";
  transition: transform 220ms ease;
}

.portal-card:hover,
.portal-card:focus-visible {
  border-color: color-mix(in srgb, var(--card-accent) 55%, #fffaf2);
  color: var(--yp-ink);
  box-shadow: 0 18px 42px rgb(92 68 52 / 15%);
  outline: none;
  transform: translateY(-4px);
}

.portal-card:hover::after,
.portal-card:focus-visible::after {
  transform: scale(1.15);
}

.portal-card-notes {
  --card-accent: var(--yp-sage);
  background: linear-gradient(145deg, #fffaf2 0%, #f3f3e9 100%);
}

.portal-card-essais {
  --card-accent: var(--yp-ochre);
  background: linear-gradient(145deg, #fffaf2 0%, #fbefe1 100%);
}

.portal-index {
  color: var(--card-accent);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.portal-rule {
  width: 2.8rem;
  height: 2px;
  margin: 1.25rem 0 2.4rem;
  background: var(--card-accent);
}

.portal-card h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.portal-card p {
  max-width: 30rem;
  margin: 0;
  color: var(--yp-muted);
  font-size: 1.05rem;
}

.portal-card .portal-quote {
  color: #6b4b35;
  font-family: var(--yp-serif);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-style: italic;
  line-height: 1.55;
}

.portal-action {
  z-index: 1;
  margin-top: auto;
  padding-top: 2.5rem;
  color: var(--card-accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.essais-opening {
  max-width: 700px;
  margin-top: 2.5rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--yp-ochre);
  color: var(--yp-muted);
  font-family: var(--yp-serif);
  font-size: 1.1rem;
}

@media (min-width: 992px) {
  main.content {
    max-width: 920px;
  }
}

@media (max-width: 767.98px) {
  body {
    line-height: 1.65;
  }

  .quarto-title h1 {
    font-size: 1.8rem;
  }

  .portal-grid {
    grid-template-columns: 1fr;
  }

  .portal-card {
    min-height: 280px;
  }
}