/* ETH — Éther Fluide · grammaire commune « constellation », déclinaison brume/corail.
   Zéro JavaScript requis. Sombre via prefers-color-scheme. Fontes : piles système. */
:root {
  --papier: #dbe0d6;
  --papier2: #e8ece4;
  --encre: #162238;
  --encre2: #45525c;
  --etoile: #c56e51;
  --second: #4b7080;
  --filet: rgba(22, 34, 56, .18);
  --filet-fort: rgba(22, 34, 56, .34);
  --serif: 'Iowan Old Style', 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, serif;
  --mono: 'Cascadia Mono', Consolas, 'Courier New', monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --papier: #0e1724;
    --papier2: #152134;
    --encre: #dde3e4;
    --encre2: #a4b1b6;
    --etoile: #d98a70;
    --second: #7fa3b4;
    --filet: rgba(221, 227, 228, .16);
    --filet-fort: rgba(221, 227, 228, .32);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--papier);
  color: var(--encre);
  font: 400 17px/1.78 var(--serif);
}
a { color: var(--encre); text-decoration-color: var(--filet-fort); text-underline-offset: .2em; }
a:hover { color: var(--etoile); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--etoile); outline-offset: 3px; }

.skip-link {
  position: fixed; left: 1rem; top: -4rem; z-index: 10;
  padding: .55rem .9rem; background: var(--encre); color: var(--papier);
  font: 600 .72rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.etiquette, .voix-label, .folio, .statut-strip, .kicker, .sommaire-titre {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .64rem;
  font-weight: 600;
}

/* ——— masthead ——— */
.masthead {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: .5rem 2rem;
  padding: 1.1rem clamp(1.25rem, 5vw, 3rem) 0;
}
.brand { text-decoration: none; font: 600 .72rem/1.5 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.topnav { display: flex; gap: 1.6rem; font: 400 .68rem/1.5 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.topnav a { text-decoration: none; border-bottom: 1px solid var(--filet-fort); padding-bottom: .15em; }
.statut-strip {
  display: flex; flex-wrap: wrap; gap: .3rem 1.6rem;
  width: 100%;
  margin-top: .9rem; padding: .7rem 0;
  border-top: 1px solid var(--filet); border-bottom: 1px solid var(--filet);
  color: var(--encre2); font-weight: 400; letter-spacing: .12em;
}
.statut-strip span::before { content: "◇"; margin-right: .5rem; color: var(--etoile); }

.page { max-width: 46rem; margin-inline: auto; padding-inline: clamp(1.25rem, 5vw, 2rem); }

/* ——— seuil ——— */
.seuil { padding-top: clamp(3.5rem, 9vh, 6.5rem); }
.kicker { color: var(--etoile); margin: 0 0 1.1rem; }
.seuil h1 {
  margin: 0 0 1.4rem;
  font: 400 clamp(3rem, 8vw, 4.8rem)/1 var(--serif);
  letter-spacing: -.02em;
}
.seuil h1 em { font-style: italic; color: var(--second); padding-left: 1.2em; }
.these {
  margin: 0; max-width: 30rem;
  font-style: italic; font-size: clamp(1.1rem, 2vw, 1.3rem); line-height: 1.5;
  color: var(--second);
}
.seuil-grille { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 240px); gap: 2.5rem 3.5rem; align-items: end; }

/* figure : les lignes — verticales fluides, densités variables */
.figure-lignes { position: relative; height: 280px; overflow: hidden; }
.figure-lignes span {
  position: absolute; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(180deg, transparent, var(--second) var(--pic, 40%), transparent);
}
.figure-lignes span.encre { background: linear-gradient(180deg, transparent, var(--encre) var(--pic, 40%), transparent); }

.intro {
  margin: 2.6rem 0 0; max-width: 34rem;
  font-size: 1.0625rem; color: var(--encre2);
}
.entree { margin: 2.2rem 0 0; font-size: .95rem; }
.entree a { text-decoration: none; border-bottom: 1px solid var(--filet-fort); }

/* régime de lecture — contrat riche */
.regime-lecture {
  margin: clamp(3rem, 7vh, 4.5rem) 0 0;
  padding: 1.4rem 0 0;
  border-top: 1px solid var(--filet);
}
.regime-lecture .etiquette { color: var(--second); margin: 0 0 .8rem; display: block; }
.regime-lecture h2 {
  margin: 0 0 1rem;
  font: 400 clamp(1.4rem, 3vw, 1.8rem)/1.2 var(--serif); letter-spacing: -.01em;
}
.regime-lecture p { margin: 0 0 .8rem; max-width: 34rem; font-size: .95rem; color: var(--encre2); }
.regime-lecture p strong { color: var(--encre); font-weight: 600; }
.regime-note { font-style: italic; }

.sommaire { margin: clamp(3rem, 7vh, 4.5rem) 0 0; }
.sommaire-titre { color: var(--second); margin: 0 0 .9rem; display: block; }
.sommaire ol { list-style: none; margin: 0; padding: 0; }
.sommaire li { border-top: 1px solid var(--filet); }
.sommaire li:last-child { border-bottom: 1px solid var(--filet); }
.sommaire a {
  display: flex; gap: 1.2rem; align-items: baseline;
  padding: .55rem 0; text-decoration: none;
}
.sommaire .no { flex: 0 0 7rem; font: 400 .62rem/1.6 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--etoile); }
.sommaire .ti { font-size: 1.05rem; }

/* ——— chapitres ——— */
.silence {
  display: flex; justify-content: center; gap: 1.1rem;
  margin: clamp(4rem, 9vh, 6.5rem) 0;
  color: var(--etoile); font-size: .7rem;
}
.chapitre { position: relative; scroll-margin-top: 2rem; }
.folio {
  position: absolute; left: -3.4rem; top: .5rem;
  writing-mode: vertical-rl; transform: rotate(180deg);
  color: var(--etoile); font-weight: 400; letter-spacing: .22em;
}
.chapitre-index { margin: 0 0 .5rem; color: var(--etoile); }
.chapitre h2 {
  margin: 0 0 2rem;
  font: 400 clamp(1.9rem, 4.5vw, 2.5rem)/1.08 var(--serif);
  letter-spacing: -.015em;
}
.chapitre p { max-width: 34rem; }

/* régimes de voix */
.voix-label { display: block; margin: 2rem 0 .5rem; color: var(--second); }
.liaison { margin: 0 0 1rem; font-size: 1rem; line-height: 1.7; color: var(--encre2); text-wrap: pretty; }
.repere { display: block; margin: 2.6rem 0 1rem; color: var(--etoile); font: 400 .85rem/1 var(--mono); }
blockquote.citation {
  margin: 0 0 1.1rem; padding: 0; border: 0;
  font-size: 1.2rem; line-height: 1.62;
}
blockquote.citation p { margin: 0; max-width: 36rem; }
.attribution { margin: 0 0 2rem; font-style: italic; font-size: .8rem; color: var(--encre2); max-width: 36rem; }
.attribution cite { font-style: italic; }
.ancrages {
  margin: 2.2rem 0 0; padding-top: .8rem; border-top: 1px solid var(--filet);
  font: 400 .68rem/1.6 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--encre2); max-width: 36rem;
}

/* figure des axes */
figure.axes { margin: 2.4rem 0; max-width: 34rem; }
figure.axes figcaption {
  margin: 0 0 1rem;
  font: 600 .64rem/1.5 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--second);
}
.axes-diagramme { position: relative; height: 230px; border: 1px solid var(--filet); }
.axes-diagramme .ligne-v { position: absolute; left: 50%; top: 8%; bottom: 8%; width: 1px; background: var(--encre); }
.axes-diagramme .ligne-h { position: absolute; top: 50%; left: 6%; right: 6%; height: 1px; background: var(--etoile); }
.axes-diagramme .lbl {
  position: absolute; margin: 0;
  font: 400 .6rem/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--encre2);
}
.axes-diagramme .lbl-v { left: 52%; top: 10%; }
.axes-diagramme .lbl-h { right: 6%; top: 52%; }

.suivant { margin: 3rem 0 0; text-align: right; font-size: .95rem; }
.suivant a { text-decoration: none; border-bottom: 1px solid var(--filet-fort); color: var(--second); }
.suivant a:hover { color: var(--etoile); }

/* ——— pied ——— */
footer {
  margin-top: clamp(4rem, 9vh, 6.5rem);
  border-top: 1px solid var(--filet-fort);
  padding: 1.6rem clamp(1.25rem, 5vw, 3rem) 2.2rem;
  font-size: .85rem; color: var(--encre2);
}
footer p { margin: 0 0 .5rem; max-width: 46rem; }
footer strong { color: var(--encre); }
footer a { color: var(--second); }

@media (max-width: 60rem) {
  .folio { display: none; }
  .seuil-grille { grid-template-columns: 1fr; }
  .figure-lignes { max-width: 300px; height: 200px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
@media print {
  .skip-link, .topnav { display: none; }
  body { font-size: 12pt; }
}

/* blocs-source importés (V2 garnissage) */
blockquote.source-importee { margin: 2rem 0 .6rem; padding: 0 0 0 1.2rem; border: 0; border-left: 2px solid var(--etoile); max-width: 36rem; font-size: 1.05rem; line-height: 1.64; }
blockquote.source-importee p { margin: 0; }
blockquote.source-importee .voix-label { display: block; margin: 0 0 .8rem; color: var(--etoile); }
.provenance-note { font-size: .8rem; font-style: italic; max-width: 34rem; margin: 0 0 1.6rem; opacity: .75; }