/* inrae-book (moulinet) — habillage SIC² (#56).
   Les couleurs/polices de base sont dans theme.scss (variables Bootstrap) ;
   ici : mise en page, lisibilité, navigation. */

:root {
  --sic-teal: #00a3a6;
  --sic-teal-dark: #007e80;
  --sic-night: #275662;
  --sic-ink: #1d2b36;
  --sic-muted: #5f6b73;
  --sic-line: #e3e8eb;
  --sic-soft: #f6f8f9;
}

/* ------------------------------------------------------------ Navbar */
.navbar {
  border-bottom: 3px solid var(--sic-teal);
  box-shadow: 0 1px 6px rgba(29, 43, 54, 0.06);
}
.navbar-brand .navbar-title {
  font-family: "Raleway", sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--sic-night);
}
.navbar-brand img {
  max-height: 34px;
}
.navbar .nav-link {
  font-weight: 500;
}
.navbar .nav-link.active {
  color: var(--sic-teal-dark) !important;
  box-shadow: inset 0 -3px 0 var(--sic-teal);
}
/* sélecteur de langue (babelquarto) : sobre, comme un lien de navbar */
/* … et placé à droite de la navbar (babelquarto l'insère en tête de la liste) */
.navbar .navbar-nav.me-auto {
  flex-grow: 1;
}
.navbar .navbar-nav.me-auto > li:has(#languages-links-parent) {
  order: 99;
  margin-left: auto;
}
.navbar .babelquarto-languages-button {
  border: 1px solid var(--sic-line) !important;
  border-radius: 999px;
  padding: 0.25rem 0.85rem;
  background: #fff !important;
  color: var(--sic-ink) !important;
  font-size: 0.9rem;
  box-shadow: none !important;
}
.navbar .babelquarto-languages-button:hover {
  border-color: var(--sic-teal) !important;
  color: var(--sic-teal-dark) !important;
}

/* ------------------------------------------------------------ Sidebar
   Arborescence : groupes de 1er niveau en « cartes » séparées, sous-niveaux
   reliés par un filet vertical (au lieu d'une indentation en escalier),
   page courante en pastille turquoise. */
#quarto-sidebar {
  background: linear-gradient(180deg, #f7fafb 0%, #f2f6f7 100%);
  border-right: 1px solid var(--sic-line);
  font-size: 0.9rem;
  padding: 1.25rem 0.6rem 2rem 0.75rem !important;
  scrollbar-width: thin;
  scrollbar-color: #c9d3d8 transparent;
}
#quarto-sidebar::-webkit-scrollbar { width: 6px; }
#quarto-sidebar::-webkit-scrollbar-thumb { background: #c9d3d8; border-radius: 3px; }

.sidebar-navigation .sidebar-menu-container > ul {
  margin: 0;
}
.sidebar-navigation .sidebar-item {
  margin: 0;
}
.sidebar-navigation .sidebar-item-container {
  display: flex;
  align-items: center;
  border-radius: 6px;
  transition: background-color 0.12s;
}
.sidebar-navigation .sidebar-item-container:hover {
  background: rgba(0, 163, 166, 0.07);
}
.sidebar-navigation .sidebar-item-container > a.sidebar-link {
  flex: 1;
  padding: 0.32rem 0.55rem;
  color: #46545e;
  line-height: 1.35;
}
.sidebar-navigation .sidebar-item-container > a.sidebar-link:hover {
  color: var(--sic-teal-dark);
}

/* chevrons : discrets, pivotent à l'ouverture */
.sidebar-navigation .sidebar-item-toggle {
  padding: 0.25rem 0.45rem;
  color: #9aa7af;
}
/* (la rotation à l'ouverture est celle de Quarto) */
.sidebar-navigation .sidebar-item-toggle i {
  font-size: 0.7rem;
}
.sidebar-navigation .sidebar-item-container:hover .sidebar-item-toggle {
  color: var(--sic-teal-dark);
}

/* 1er niveau : groupes en cartes */
.sidebar-navigation .sidebar-menu-container > ul > li.sidebar-item {
  background: #fff;
  border: 1px solid var(--sic-line);
  border-radius: 8px;
  margin-bottom: 0.55rem;
  padding: 0.2rem;
  box-shadow: 0 1px 2px rgba(29, 43, 54, 0.04);
}
.sidebar-navigation .sidebar-menu-container > ul > li.sidebar-item > .sidebar-item-container > a.sidebar-link {
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--sic-night);
  padding: 0.45rem 0.6rem;
}
.sidebar-navigation .sidebar-menu-container > ul > li.sidebar-item:has(> .sidebar-item-container a[aria-expanded="true"]) {
  border-color: rgba(0, 163, 166, 0.45);
}

/* sous-niveaux : filet vertical, petit retrait constant */
.sidebar-navigation ul.sidebar-section {
  margin: 0.1rem 0 0.3rem 0.6rem !important;
  padding-left: 0.45rem !important;
  border-left: 1px solid #dbe3e7;
}
.sidebar-navigation ul.sidebar-section.depth1 {
  margin-left: 0.55rem !important;
}
/* intitulés de sous-sections */
.sidebar-navigation li.sidebar-item-section > .sidebar-item-container > a.sidebar-link {
  font-weight: 600;
  color: #33424c;
}

/* page courante */
.sidebar-navigation a.sidebar-link.active {
  position: relative;
  background: rgba(0, 163, 166, 0.12);
  border-radius: 6px;
  color: var(--sic-teal-dark) !important;
  font-weight: 600;
}
.sidebar-navigation a.sidebar-link.active .menu-text {
  color: var(--sic-teal-dark) !important;
}
.sidebar-navigation ul.sidebar-section a.sidebar-link.active::before {
  content: "";
  position: absolute;
  left: calc(-0.45rem - 1px);
  top: 0.3rem;
  bottom: 0.3rem;
  width: 3px;
  border-radius: 2px;
  background: var(--sic-teal);
}

/* ------------------------------------------------------------ Titre de page */
.sic-title-block {
  margin: 0.5rem 0 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sic-line);
}
.sic-title-block h1.title {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
}
.sic-title-block .subtitle {
  margin: 0.5rem 0 0;
  color: var(--sic-muted);
  font-size: 1.15rem;
}
.quarto-title-breadcrumbs,
nav.quarto-page-breadcrumbs {
  font-size: 0.85rem;
}
.breadcrumb {
  margin-bottom: 0.25rem;
}

/* ------------------------------------------------------------ Texte */
main.content {
  font-size: 1rem;
}
main.content p,
main.content li {
  max-width: 72ch;
}
main.content h2 {
  margin-top: 2.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--sic-line);
  font-size: 1.55rem;
}
main.content h3 {
  margin-top: 1.75rem;
  font-size: 1.25rem;
}
main.content h4 {
  margin-top: 1.25rem;
  font-size: 1.05rem;
}
main.content a:not(.btn):not(.sic-card) {
  text-decoration: underline;
  text-decoration-color: rgba(0, 126, 128, 0.35);
  text-underline-offset: 0.2em;
}
main.content a:not(.btn):not(.sic-card):hover {
  text-decoration-color: currentColor;
}

/* ------------------------------------------------------------ Images */
main.content img:not(.sic-card img) {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--sic-line);
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(29, 43, 54, 0.06);
}
main.content figure figcaption,
main.content .figure-caption {
  color: var(--sic-muted);
  font-size: 0.88rem;
}

/* ------------------------------------------------------------ Tableaux */
main.content table {
  font-size: 0.9rem;
  margin: 1.25rem 0;
}
main.content table thead th {
  background: var(--sic-soft);
  border-bottom: 2px solid var(--sic-teal) !important;
  font-weight: 600;
}
main.content table td,
main.content table th {
  padding: 0.45rem 0.7rem;
  vertical-align: top;
}
main.content table tbody tr:nth-child(even) {
  background: #fafbfc;
}
/* tableaux larges : défilement horizontal plutôt que débordement */
main.content .cell-output-display,
main.content div:has(> table) {
  overflow-x: auto;
}

/* ------------------------------------------------------------ Formules */
mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0;
}

/* ------------------------------------------------------------ Encadrés */
div.callout {
  border-left-width: 4px !important;
  border-radius: 4px;
}

/* ------------------------------------------------------------ Table des matières de page */
#TOC, nav#TOC {
  font-size: 0.85rem;
}
#toc-title, .toc-actions {
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
  color: var(--sic-muted);
}
#TOC .nav-link.active {
  color: var(--sic-teal-dark) !important;
  border-left-color: var(--sic-teal) !important;
}

/* ------------------------------------------------------------ Pages précédente / suivante */
.page-navigation {
  border-top: 1px solid var(--sic-line);
  margin-top: 3rem;
  padding-top: 1rem;
}
.page-navigation .nav-page a {
  font-weight: 500;
}

/* ------------------------------------------------------------ Pied de page */
.sic-footer {
  margin-top: 4rem;
  border-radius: 8px;
  padding: 2rem 1rem;
  background: var(--sic-soft);
  border-top: 1px solid var(--sic-line);
}
.sic-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem 2.5rem;
}
.sic-footer-logos {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.sic-footer-logos img {
  border: 0 !important;
  box-shadow: none !important;
}
.sic-footer-text p {
  margin: 0;
  color: var(--sic-muted);
}
.sic-footer-title {
  font-weight: 600;
}
.sic-footer-date {
  font-size: 0.85rem;
}

/* ------------------------------------------------------------ Accueil */
.sic-hero {
  padding: 2.5rem 2rem;
  margin: 0 0 2rem;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--sic-night) 0%, #1f6f78 55%, var(--sic-teal) 100%);
  color: #fff;
}
.sic-hero h1 {
  color: #fff;
  border: 0 !important;
  margin: 0 !important;
  font-size: 3rem;
  font-weight: 800;
}
.sic-hero-tagline {
  display: block;
  font-family: "Raleway", sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0.25rem 0 1rem;
}
.sic-hero p {
  max-width: 60ch;
  margin-bottom: 1.25rem;
  color: rgba(255, 255, 255, 0.92);
}
.sic-hero .btn {
  margin: 0.25rem 0.5rem 0.25rem 0;
  font-weight: 600;
  text-decoration: none !important;
}
.sic-hero .btn-light {
  color: var(--sic-night);
}
.sic-hero .btn-outline-light:hover {
  color: var(--sic-night);
}
.sic-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem;
  margin: 1rem 0 2.5rem;
}
a.sic-card {
  display: block;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--sic-line);
  border-radius: 8px;
  background: #fff;
  color: var(--sic-ink);
  text-decoration: none !important;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
a.sic-card:hover {
  border-color: var(--sic-teal);
  box-shadow: 0 4px 14px rgba(0, 126, 128, 0.12);
  transform: translateY(-2px);
}
a.sic-card .sic-card-icon {
  font-size: 1.5rem;
  color: var(--sic-teal-dark);
}
a.sic-card .sic-card-title {
  display: block;
  margin-top: 0.35rem;
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
}
a.sic-card .sic-card-text {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.88rem;
  color: var(--sic-muted);
  line-height: 1.45;
}
/* plan du site replié */
.sic-sitemap > summary {
  cursor: pointer;
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--sic-line);
  border-radius: 8px;
  background: var(--sic-soft);
}
.sic-sitemap[open] > summary {
  border-radius: 8px 8px 0 0;
}
.sic-sitemap > .sic-sitemap-body {
  padding: 0.5rem 1.25rem 1rem;
  border: 1px solid var(--sic-line);
  border-top: 0;
  border-radius: 0 0 8px 8px;
}
.sic-sitemap h3 {
  font-size: 1.05rem;
}

/* ------------------------------------------------------------ Mobile */
@media (max-width: 991.98px) {
  .sic-title-block h1.title {
    font-size: 1.65rem;
  }
  .sic-hero {
    padding: 1.75rem 1.25rem;
  }
}