/* ------------------------
   Police et couleurs globales
------------------------ */
body {
  font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2c3e50;
  background-color: #fdfdfd;
  padding: 10px;
}

/* ------------------------
   Titres
------------------------ */
h1 {
  font-size: 30px;
  color: #2d572c; /* vert forêt */
  border-bottom: 3px solid #88c999;
  padding-bottom: 10px;
  margin-top: 40px;
}

h2 {
  font-size: 24px;
  color: #388e3c;
  border-left: 5px solid #a5d6a7;
  padding-left: 10px;
  margin-top: 30px;
}

h3 {
  font-size: 20px;
  color: #00796b;
  margin-top: 25px;
}

h4, h5 {
  color: #00695c;
}

/* ------------------------
   Liens
------------------------ */
a {
  color: #2e7d32;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ------------------------
   Paragraphes et blocs
------------------------ */
p {
  margin-bottom: 1.2em;
}

blockquote {
  font-style: italic;
  color: #555;
  border-left: 4px solid #81c784;
  padding-left: 12px;
  background-color: #f1f8e9;
  margin: 20px 0;
}

/* ------------------------
   Encadrés personnalisés
------------------------ */
.note, .tip, .warning {
  border-left: 6px solid;
  padding: 12px 18px;
  margin: 20px 0;
  border-radius: 5px;
  background-color: #f4fdf4;
}

.note {
  border-color: #81c784;
  background-color: #edf7ed;
}

.tip {
  border-color: #4caf50;
  background-color: #e8f5e9;
}

.warning {
  border-color: #e65100;
  background-color: #fff3e0;
}

/* ------------------------
   Blocs de code
------------------------ */
pre {
  background-color: #f4f4f4;
  border-left: 5px solid #66bb6a;
  padding: 10px;
  font-size: 14px;
  overflow-x: auto;
  border-radius: 4px;
}

/* ------------------------
   Tableaux
------------------------ */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-size: 15px;
}

th, td {
  border: 1px solid #ccc;
  padding: 8px;
}

th {
  background-color: #e8f5e9;
  color: #2e7d32;
}

/* ------------------------
   Espacement général
------------------------ */
ul {
  margin-left: 1.5em;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

/* ===== BASE ===== */
body {
  font-family: 'Segoe UI', 'Roboto', sans-serif;
  background-color: #f8f9fa;
  color: #2c3e50;
  line-height: 1.6;
}

/* ===== HEADINGS ===== */
h1, h2, h3, h4 {
  color: #0077b6;
  font-weight: 600;
  border-bottom: 1px solid #e1e1e1;
  padding-bottom: 4px;
}

h1 {
  font-size: 2em;
}
h2 {
  font-size: 1.6em;
}
h3 {
  font-size: 1.3em;
}

/* ===== LINKS ===== */
a {
  color: #0077b6;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== NAVIGATION (toc) ===== */
#book-menu {
  background-color: #e0f7fa;
  color: #004d61;
}

.toc a {
  color: #0077b6;
}

.toc a:hover {
  background-color: #d0ebff;
  font-weight: bold;
}

/* ===== CODE BLOCKS ===== */
pre, code {
  background-color: #f4f4f4;
  border-radius: 5px;
  padding: 2px 6px;
  font-family: 'Fira Code', monospace;
  color: #343a40;
}

/* ===== TABLES ===== */
table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 1em;
}

th, td {
  padding: 0.6em;
  border: 1px solid #dee2e6;
}

th {
  background-color: #0077b6;
  color: white;
  font-weight: 600;
}

tr:nth-child(even) {
  background-color: #f1f1f1;
}

/* ===== BLOCKQUOTES ===== */
blockquote {
  border-left: 4px solid #0077b6;
  background-color: #eef8fb;
  padding: 0.8em 1em;
  font-style: italic;
  color: #333;
}

/* ===== TOOLBAR / HEADER ===== */
#book-header {
  background-color: #0077b6 !important;
  color: white;
}

/* ===== SEARCH BAR ===== */
#book-search-input {
  border: 1px solid #ccc;
  padding: 6px;
  font-size: 1em;
  border-radius: 4px;
}

/* ===== CUSTOM BUTTON STYLE (optional) ===== */
.btn {
  background-color: #0077b6;
  color: white;
  border: none;
  padding: 8px 16px;
  margin-top: 10px;
  border-radius: 4px;
  cursor: pointer;
}

.btn:hover {
  background-color: #005f86;
}
/* ===== ✅ Personnalisation de l’onglet latéral ===== */
#book-menu {
  background-color: #cce5ff;   /* 🌈 Change ici la couleur de fond */
  border-right: 1px solid #b3d7ff;
  padding: 10px;
  max-width: 300px;            /* Augmente la largeur si besoin */
  overflow-wrap: break-word;  /* Pour forcer le retour à la ligne */
}

.toc {
  font-size: 15px;
  line-height: 1.6;
}

.toc a {
  color: #003366 !important;
  padding: 6px 10px;
  border-radius: 4px;
  display: block;
  word-break: break-word;
}

.toc a:hover {
  background-color: #99ccff;
  font-weight: bold;
  transition: all 0.2s ease-in-out;
}

.toc .active > a {
  background-color: #3399ff;
  color: white !important;
  font-weight: bold;
}

/* ✅ Multiligne pour le titre dans le panneau latéral */
.book-title {
  white-space: normal !important;
  word-wrap: break-word;
  line-height: 1.4;
  font-size: 17px;
  font-weight: bold;
  padding-right: 10px;
  color: #002f5e;
}

/* 🔵 Forcer une nouvelle couleur de fond de l'onglet latéral */
#book-menu {
  background-color: blue !important; /* couleur bleu pâle */
  border-right: 1px solid #b3d7ff;
}

/* ✅ Forcer l'affichage du titre sur plusieurs lignes */
.book .book-summary .book-title {
  white-space: normal !important;
  overflow-wrap: break-word !important;
  font-size: 16px;
  font-weight: bold;
  line-height: 1.4;
  color: #003366;
  padding: 12px 10px;
  max-width: 100%;
}

/* 🌈 Amélioration du style des liens du sommaire */
.summary a {
  color: #003366 !important;
}

.summary a:hover {
  background-color: #cce5ff !important;
  color: #000 !important;
}

/* Pour éviter le tronquage du titre par overflow */
.book .book-summary {
  max-width: 300px;
}

/* 🔁 1. Forcer la couleur de fond de la barre latérale */
div.book-summary {
  background-color: #e0f3ff !important; /* couleur bleu clair */
  border-right: 1px solid #99cce5 !important;
}

/* 🧱 2. Corriger le style du titre principal tronqué */
.book .book-summary .book-title a {
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  font-size: 16px !important;
  font-weight: bold !important;
  line-height: 1.5 !important;
  color: #003366 !important;
  display: block !important;
  max-width: 100% !important;
  padding: 12px 14px !important;
  margin: 0 !important;
}

/* 🖌️ 3. Style des liens dans le sommaire */
.book .book-summary ul.summary li a {
  color: #003366 !important;
}

.book .book-summary ul.summary li a:hover {
  background-color: #b3dcff !important;
  color: #000 !important;
}

/* ✅ 4. Étendre la largeur de la barre latérale si nécessaire */
.book .book-summary {
  width: 280px !important;
}
.book .book-body {
  left: 280px !important;
}

/* 🧩 Empêche le titre du livre d'être tronqué */
.book .book-summary .book-title {
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  line-height: 1.4 !important;
  padding: 10px 15px !important;
  font-weight: bold !important;
  background-color: #e0f3ff !important;
}

.book .book-summary .book-title a {
  display: block !important;
  white-space: normal !important;
  overflow-wrap: break-word !important;
  word-break: break-word !important;
  font-size: 16px !important;
  color: #003366 !important;
  text-decoration: none !important;
}

.book .book-summary .book-logo img {
  border-radius: 6px;
  box-shadow: 0 0 6px rgba(0,0,0,0.15);
}

footer {
  background-color: #f4f4f4;
  color: #333;
  padding: 15px;
  font-size: 0.85em;
  border-top: 1px solid #ddd;
}

/* Couleur de fond de la barre du haut */
.book-header {
  background-color: #0077B6 !important; /* Bleu ENSAE 
  color: white !important;
}

.book-header .book-title {
  display: inline-block !important;
  color: white !important;
  font-weight: bold;
  font-size: 18px;
  padding-left: 20px;
  padding-top: 10px;
}

/* Corriger le comportement au survol */
.book-header:hover .book-title {
  display: inline-block !important;
}

.book-header .gitbook-link {
  display: none !important;
}