/* style.css — édition HTML du livre (mobile d'abord, filigrane).
   Palette : brique #C12A24 (charte), encre #1a1814, gris de la charte. */

:root {
  --encre: #1a1814;
  --brique: #c12a24;
  --grismoyen: #8a8580;
  --grisclair: #d9d4cb;
  --papier: #fdfcfa;
}

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--papier);
  color: var(--encre);
  font-family: Georgia, "Times New Roman", "Liberation Serif", serif;
  font-size: 17px;
  line-height: 1.65;
}

/* --- Filigrane : calque fixe plein écran, répété en diagonale --- */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 60;
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPSc0ODAnIGhlaWdodD0nMzIwJz48dGV4dCB4PScyNDAnIHk9JzE2MCcgdHJhbnNmb3JtPSdyb3RhdGUoLTMwIDI0MCAxNjApJyB0ZXh0LWFuY2hvcj0nbWlkZGxlJyBmb250LWZhbWlseT0nR2VvcmdpYSxzZXJpZicgZm9udC1zaXplPScxNycgZmlsbD0nIzFhMTgxNCcgZmlsbC1vcGFjaXR5PScwLjA4NSc+wqkgUsOpZ2lzIFBvcnRhbGV6IOKAlCDDqXByZXV2ZSBkZSByZWxlY3R1cmU8L3RleHQ+PC9zdmc+");
  background-size: 480px 320px;
}
@media print {
  body::after { position: absolute; min-height: 100%; }
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 16px 2rem;
}

/* --- Titres --- */
h1, h2, h3 { line-height: 1.25; font-weight: 700; }
h1 { font-size: 1.7rem; margin: 0.6rem 0 1.2rem; }
h2 { font-size: 1.25rem; margin-top: 2.2rem; }
h3 { font-size: 1.05rem; margin-top: 1.6rem; }
/* Le numéro du chapitre est porté par le surtitre (« Chapitre N ») : on
   masque le numéro que pandoc met devant le h1, mais pas ceux des sections. */
h1 > .header-section-number { display: none; }
h2 > .header-section-number, h3 > .header-section-number { color: var(--grismoyen); margin-right: 0.35em; }

.kicker {
  margin: 1.6rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grismoyen);
}

/* --- Texte --- */
p { margin: 0 0 1em; text-align: justify; hyphens: auto; -webkit-hyphens: auto; }
a { color: var(--brique); text-decoration: none; }
a:hover { text-decoration: underline; }
blockquote {
  margin: 1.2em 0 1.2em 1em;
  padding-left: 1em;
  border-left: 3px solid var(--grisclair);
  color: #3a3733;
}
.epigraph {
  margin: 0 0 2rem auto;
  max-width: 85%;
  font-style: italic;
  color: #3a3733;
  font-size: 0.95rem;
}
.epigraph p:last-child { text-align: right; font-style: normal; font-size: 0.88rem; }

/* --- Figures --- */
figure { margin: 1.8rem 0; text-align: center; }
figure img, p img { max-width: 100%; height: auto; }
figcaption {
  margin-top: 0.6rem;
  font-size: 0.86rem;
  color: #3a3733;
  text-align: left;
}

/* --- Tableaux --- */
table { border-collapse: collapse; margin: 1.5rem auto; font-size: 0.92rem; display: block; overflow-x: auto; }
th, td { padding: 0.35em 0.7em; border-bottom: 1px solid var(--grisclair); text-align: left; }
thead th { border-bottom: 2px solid var(--encre); }

/* --- Notes de bas de page --- */
a.footnote-ref { text-decoration: none; font-size: 0.8em; }
section.footnotes {
  margin-top: 3rem;
  font-size: 0.88rem;
  color: #3a3733;
}
section.footnotes::before {
  content: "Notes";
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--encre);
  margin-bottom: 0.8rem;
}
html[lang="de"] section.footnotes::before { content: "Anmerkungen"; }
html[lang="es"] section.footnotes::before { content: "Notas"; }
html[lang="it"] section.footnotes::before { content: "Note"; }
section.footnotes hr { display: none; }
section.footnotes li { margin-bottom: 0.5em; }

/* --- Bibliographie (page dédiée) --- */
#refs .csl-entry { margin-bottom: 0.7em; padding-left: 1.4em; text-indent: -1.4em; text-align: left; }

/* --- Navigation entre chapitres --- */
nav.chapnav {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0.7rem 16px;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
  font-family: system-ui, sans-serif;
}
nav.chapnav.top { border-bottom: 1px solid var(--grisclair); }
nav.chapnav.bottom { border-top: 1px solid var(--grisclair); margin-top: 2rem; }
nav.chapnav .spacer { flex: 1; }
nav.chapnav a { white-space: nowrap; }

/* --- Barre de langues --- */
nav.langbar {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0.45rem 16px 0;
  font-size: 0.78rem;
  font-family: system-ui, sans-serif;
  color: var(--grismoyen);
  text-align: right;
}
nav.langbar a { color: var(--grismoyen); }
nav.langbar strong { color: var(--encre); font-weight: 600; }

/* --- Mention traduction IA --- */
.iamention {
  margin: 1.2rem 0 0;
  font-size: 0.78rem;
  font-family: system-ui, sans-serif;
  color: var(--grismoyen);
  border: 1px solid var(--grisclair);
  border-radius: 4px;
  padding: 0.3rem 0.6rem;
  text-align: center;
}
footer.colophon .iamention { all: unset; }

footer.colophon {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1rem 16px 2.5rem;
  font-size: 0.8rem;
  color: var(--grismoyen);
  font-family: system-ui, sans-serif;
}

/* --- Couverture (index.html) --- */
.cover { text-align: center; margin: 3rem 0 2.5rem; }
.cover .titre { font-size: 1.9rem; font-weight: 700; line-height: 1.2; margin: 0 0 1rem; }
.cover .motdordre { font-style: italic; font-size: 1.05rem; color: #3a3733; margin: 0 0 1.2rem; }
.cover .auteur { font-variant: small-caps; font-size: 1.1rem; letter-spacing: 0.05em; }
.cover .exergue { margin: 2.5rem auto 0; max-width: 80%; font-style: italic; font-size: 0.92rem; color: #3a3733; }
.toc { list-style: none; padding: 0; }
.toc > li { margin: 0.45em 0; }
.toc .partie {
  margin-top: 1.6em;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grismoyen);
}
.toc .num { color: var(--grismoyen); display: inline-block; min-width: 1.7em; }