/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Base ── */
html { scroll-behavior: smooth; }

body {
  font-family: 'Esteban', serif;
  font-weight: 400;
  color: #000;
  background: #fcfcfc;
  min-height: 100vh;
}

/* ── Accessibilité ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: #4305d4;
  color: #fff;
  padding: 8px 16px;
  font-size: 14px;
  font-family: 'Esteban', serif;
  text-decoration: none;
  z-index: 999;
}
.skip-link:focus { top: 0; }

:focus-visible {
  outline: 2px solid #4305d4;
  outline-offset: 3px;
}

a { color: #4305d4; }
a:hover { color: #FB06FF; }

/* ── Header / Nav ── */
body > header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: #fcfcfc;
  z-index: 100;
}

body > header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 41px;
}

.nav-home {
  font-family: 'Esteban', serif;
  font-size: 14px;
  color: #000;
  text-decoration: none;
}
.nav-home:hover { color: #FB06FF; }

/* ── TOC ── */
.toc-btn {
  font-family: 'Esteban', serif;
  font-size: 20px;
  color: #000;
  text-decoration: none;
  line-height: 1;
}

.toc-close {
  font-family: 'Esteban', serif;
  font-size: 20px;
  color: #000;
  background: none;
  border: none;
  padding: 0;
  line-height: 1;
  cursor: pointer;
}

.toc-page {
  padding-top: clamp(80px, 7.3vw, 93px);
  padding-bottom: 80px;
  padding-left: 41px;
  padding-right: 41px;
}

.toc-section { margin-bottom: 40px; }

.toc-section-title {
  font-family: 'Esteban', serif;
  font-size: 14px;
  font-weight: 400;
  color: rgba(0,0,0,0.4);
  margin-bottom: 12px;
}

.toc-list {
  list-style: none;
}

.toc-link {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  text-decoration: none;
  color: #000;
}
.toc-link:hover .toc-item-title { color: #FB06FF; }

.toc-coming {
  opacity: 0.3;
  cursor: default;
}
.toc-coming .toc-item-title::after {
  content: ' — À venir';
  font-size: 0.75em;
}

.toc-item-num {
  font-family: 'Esteban', serif;
  font-size: 14px;
  color: rgba(0,0,0,0.3);
  min-width: 28px;
  flex-shrink: 0;
}

.toc-item-title { font-size: clamp(17px, 1.9vw, 24px); }

/* ── Page (main) ── */
main { display: block; }

/* ── Home ── */
.home-wrap {
  /* Décalage gauche proportionnel : 19.8vw = 253px à 1280px */
  padding-top: clamp(80px, 14vw, 180px);
  padding-bottom: clamp(60px, 9.4vw, 120px);
  padding-left: clamp(20px, 19.8vw, 253px);
  padding-right: 20px;
  max-width: 1101px; /* 253 + 848 */
}

.definition {
  font-size: clamp(20px, 5.5vw, 38px);
  line-height: 1.55;
  color: #000;
  margin-bottom: clamp(32px, 4.4vw, 56px);
}

.term-link {
  color: #4305d4;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.term-link:hover { color: #FB06FF; }

.def-num {
  color: #4305d4;
  font-size: 0.645em;
  vertical-align: super;
  line-height: 0;
}

.voila {
  font-size: clamp(16px, 2.5vw, 24px);
  line-height: 1.5;
  color: #000;
  margin-bottom: clamp(20px, 2.8vw, 36px);
}

.home-body {
  font-size: clamp(16px, 2.5vw, 24px);
  line-height: 1.5;
  color: #000;
}
.home-body p + p { margin-top: 1em; }

/* ── Page de contenu ── */
.page-wrap {
  /* Colonne centrée de 540px, avec 20px de marge min de chaque côté */
  max-width: 580px;
  margin: 0 auto;
  padding-top: clamp(80px, 7.3vw, 93px);
  padding-bottom: 120px;
  padding-left: 20px;
  padding-right: 20px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: clamp(40px, 4.3vw, 55px);
}

.page-title {
  font-family: 'Esteban', serif;
  font-size: clamp(32px, 8vw, 84px);
  font-weight: 400;
  line-height: 1;
  color: #000;
  flex: 1;
  hyphens: auto;
}

.page-num {
  font-family: 'Esteban', serif;
  font-size: clamp(14px, 1.9vw, 24px);
  color: #000;
  padding-top: 0.1em;
  flex-shrink: 0;
}

.page-body {
  font-size: clamp(16px, 2.5vw, 24px);
  line-height: 1.5;
  color: #000;
}
.page-body p + p { margin-top: 1em; }

.page-body a {
  color: #4305d4;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-body a:hover { color: #FB06FF; }

.body-num {
  color: #4305d4;
  font-size: 0.645em;
  vertical-align: super;
  line-height: 0;
}

/* ── Liens de navigation ── */
.next-links {
  display: none;
}

.next-link {
  font-family: 'Mansalva', cursive;
  font-size: clamp(16px, 2.5vw, 26px);
  letter-spacing: -0.78px;
  line-height: 1.2;
  color: rgba(0,0,0,0.75);
  text-decoration: none;
  display: inline-block;
}
.next-link:hover { color: #FB06FF; }

/* ── Creuser le sujet ── */
.creuser {
  margin-top: clamp(40px, 4.3vw, 55px);
  padding-top: clamp(24px, 2.5vw, 32px);
  border-top: 1px solid rgba(0,0,0,0.08);
}

.creuser-title {
  font-family: 'Esteban', serif;
  font-size: 14px;
  font-weight: 400;
  color: rgba(0,0,0,0.4);
  margin-bottom: 16px;
}

.creuser-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Signature ── */
.signature {
  font-size: 16px;
  color: #000;
  text-align: center;
  margin-top: clamp(60px, 6.25vw, 80px);
  padding-bottom: 60px;
}
.signature a { text-decoration: none; }
.signature u { text-underline-offset: 3px; }

.signature-sub {
  font-size: 13px;
  color: rgba(0,0,0,0.45);
  text-align: center;
  margin-top: 8px;
  padding-bottom: 60px;
}
.signature-sub a {
  color: rgba(0,0,0,0.45);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.signature-sub a:hover { color: #FB06FF; }

/* ── Bibliographie ── */
.bib-title {
  font-family: 'Esteban', serif;
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 400;
  color: #000;
  margin-bottom: 12px;
}

.bib-intro {
  font-size: clamp(14px, 1.5vw, 16px);
  color: rgba(0,0,0,0.5);
  margin-bottom: 48px;
}

.bib-section { margin-bottom: 40px; }

.bib-demarche {
  font-size: clamp(16px, 2.5vw, 22px);
  line-height: 1.55;
  color: #000;
  margin-bottom: 16px;
}
.bib-demarche p + p { margin-top: 1em; }

.bib-list {
  list-style: none;
}

.bib-list li {
  font-size: clamp(15px, 1.8vw, 20px);
  padding: 10px 0;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  color: #000;
}

.bib-author {
  color: rgba(0,0,0,0.45);
}

/* ── Responsive : mobile (< 640px) ── */
@media (max-width: 640px) {
  body > header nav { padding: 0 20px; }

  .toc-page { padding-left: 20px; padding-right: 20px; }

  /* Home : en dessous de 640px, clamp(20px, 19.8vw, 253px) donne ~127px —
     trop large sur petit écran, on force 20px */
  .home-wrap {
    padding-left: 20px;
    padding-right: 20px;
  }

  /* Pages internes : le clamp + max-width gèrent tout en dehors du header */
  .page-header {
    flex-direction: column-reverse;
    gap: 4px;
  }

  .page-num { padding-top: 0; }

  .toc-item-title { font-size: clamp(16px, 4.5vw, 24px); }
}