/* ==========================================================================
   En-tete (barre de navigation) : une seule ligne, tout centre, hauteurs regulieres.
   Charge APRES style.css et porte-notes-lien.css : il les surcharge sans les modifier.
   - chaque lien est une pastille encadree de 40 px (meme hauteur et meme rayon que
     « Cours en ligne », la langue et S'inscrire), ecart identique entre toutes
   - hierarchie : liens neutres, « Cours en ligne » en accent, S'inscrire seul bouton plein
   - animations (transform, opacity, box-shadow, 220 ms) coupees en mouvement reduit
   - menu burger : seuils calcules par langue (libelles de longueurs differentes)
   ========================================================================== */

.site-header {
  --g: 10px;         /* ecart unique entre pastilles et entre elements de la barre */
  --pad: 12px;       /* marge interne horizontale des pastilles de lien */
  --fs: 13.5px;
  --ligne: rgba(139, 126, 90, 0.34);
  --accent: #B85C38;
}

.site-header .header-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  gap: var(--g);
  height: 76px;
  max-width: 1560px;
  padding: 0 24px;
  box-sizing: border-box;
}

/* ----- logo ----- */
.site-header .brand { flex: none; gap: 12px; margin-right: 6px; }
.site-header .brand-mark { width: 42px; height: 42px; flex: none; }
.site-header .brand-text { min-width: 0; line-height: 1.15; }
.site-header .brand-name { white-space: nowrap; font-size: 19px; line-height: 1.1; }
.site-header .brand-sub {
  display: none;
  white-space: nowrap;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  margin-top: 3px;
}

/* ----- barre : liens et pastille collés au groupe de droite ----- */
.site-header .main-nav {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--g);
}

/* ----- liens : pastilles encadrees ----- */
.site-header .main-nav a:not(.nav-externe) {
  position: relative;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  height: 40px;
  padding: 0 var(--pad);
  border: 1px solid var(--ligne);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  color: #2E1F1A;
  font-size: var(--fs);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.22s ease, box-shadow 0.22s ease, color 0.22s ease;
}
/* fond qui se remplit depuis le bas */
.site-header .main-nav a:not(.nav-externe)::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(184, 92, 56, 0.13);
  transform: scaleY(0);
  transform-origin: 50% 100%;
  transition: transform 0.22s ease;
}
/* bordure d'accent : un anneau qui apparait en fondu (remplace le soulignement d'origine) */
.site-header .main-nav a:not(.nav-externe)::after {
  content: '';
  position: absolute;
  inset: 0;
  left: 0; right: 0; top: 0; bottom: 0;
  width: auto; height: auto;
  border-radius: inherit;
  background: none;
  box-shadow: inset 0 0 0 1px var(--accent);
  opacity: 0;
  transition: opacity 0.22s ease;
  pointer-events: none;
}
.site-header .main-nav a:not(.nav-externe):hover,
.site-header .main-nav a:not(.nav-externe):focus-visible {
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(184, 92, 56, 0.2);
}
.site-header .main-nav a:not(.nav-externe):hover::before,
.site-header .main-nav a:not(.nav-externe):focus-visible::before { transform: scaleY(1); }
.site-header .main-nav a:not(.nav-externe):hover::after,
.site-header .main-nav a:not(.nav-externe):focus-visible::after { opacity: 1; }
.site-header .main-nav a:not(.nav-externe):active { transform: scale(0.97); box-shadow: none; transition-duration: 0.1s; }
.site-header .main-nav a:not(.nav-externe):focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* page courante (aria-current) : accent, fond leger, bordure d'accent */
.site-header .main-nav a:not(.nav-externe)[aria-current] {
  color: var(--accent);
  font-weight: 600;
  border-color: var(--accent);
  background: rgba(184, 92, 56, 0.1);
}

/* ----- trois elements de droite : 40 px, meme rayon ----- */
.site-header .main-nav a.nav-externe,
.site-header .lang-switcher > summary,
.site-header .nav-cta {
  box-sizing: border-box;
  height: 40px;
  border-radius: 999px;
  font-size: var(--fs);
  line-height: 1;
  white-space: nowrap;
}
.site-header .main-nav a.nav-externe { flex: none; align-self: center; margin-left: 0; padding: 0 14px 0 16px; }
.site-header .nav-cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  font-weight: 600;
}

/* ----- selecteur de langue : pilule claire, drapeau et nom sur UNE ligne ----- */
.site-header .header-inner .lang-switcher {
  flex: none;
  margin: 0;
  align-self: center;
  position: relative !important;
}
.site-header .lang-switcher > summary {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 7px !important;
  min-width: 112px;
  padding: 0 12px !important;
  background: rgba(255, 255, 255, 0.7) !important;
  color: #2E1F1A !important;
  border: 1px solid rgba(46, 31, 26, 0.22);
  border-radius: 999px !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
  list-style: none;
}
.site-header .lang-switcher > summary::-webkit-details-marker { display: none; }
.site-header .lang-switcher > summary:hover { border-color: var(--accent); }
.site-header .lang-switcher > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.site-header .lang-switcher #langCurrent { white-space: nowrap; }
.site-header .lang-switcher > summary > span:last-child {
  font-size: 11px !important;
  line-height: 1;
  color: var(--accent);
  opacity: 1 !important;
  transition: transform 0.2s ease;
}
.site-header .lang-switcher[open] > summary > span:last-child { transform: rotate(180deg); }
.site-header .lang-switcher > div {
  top: calc(100% + 8px) !important;
  background: #FAF6EE !important;
  border: 1px solid rgba(46, 31, 26, 0.14);
  box-shadow: 0 10px 28px rgba(46, 31, 26, 0.14) !important;
  backdrop-filter: none !important;
  border-radius: 14px !important;
  padding: 6px !important;
  min-width: 170px !important;
}
.site-header .lang-switcher > div a { color: #2E1F1A !important; border-radius: 8px !important; font-size: 13.5px !important; }
.site-header .lang-switcher > div a:hover { background: rgba(184, 92, 56, 0.1) !important; }
.site-header .lang-switcher > div a[aria-current="true"] { color: var(--accent) !important; font-weight: 700 !important; }

.site-header .burger { display: none; flex: none; width: 40px; height: 40px; }

/* ----- reduction progressive avant le burger : marge interne, ecart, police ----- */
@media (max-width: 1499px) {
  .site-header { --pad: 10px; --g: 8px; --fs: 13px; }
  .site-header .header-inner { padding: 0 20px; }
  .site-header .main-nav a.nav-externe { padding: 0 12px 0 14px; }
  .site-header .nav-cta { padding: 0 16px; }
  .site-header .lang-switcher > summary { min-width: 104px; padding: 0 10px !important; font-size: 12.5px !important; }
}
@media (max-width: 1419px) {
  .site-header { --pad: 8px; --g: 6px; }
  .site-header .header-inner { padding: 0 16px; }
  .site-header .brand { gap: 10px; margin-right: 0; }
  .site-header .main-nav a.nav-externe { padding: 0 10px 0 12px; }
  .site-header .nav-cta { padding: 0 14px; }
  .site-header .lang-switcher > summary { min-width: 96px; padding: 0 8px !important; gap: 5px !important; }
}

/* ----- mouvement reduit : pas de deplacement, seulement les changements de couleur ----- */
@media (prefers-reduced-motion: reduce) {
  .site-header .main-nav a:not(.nav-externe),
  .site-header .main-nav a:not(.nav-externe)::before,
  .site-header .main-nav a:not(.nav-externe)::after { transition: none; }
  .site-header .main-nav a:not(.nav-externe):hover,
  .site-header .main-nav a:not(.nav-externe):focus-visible,
  .site-header .main-nav a:not(.nav-externe):active { transform: none; box-shadow: none; }
}

/* ----- menu burger. Le seuil depend de la langue (libelles plus ou moins longs) : il a ete
   mesure langue par langue, et la langue active est lue sur <html lang> que i18n.js met a jour.
   Au-dessous du seuil la barre complete ne tiendrait pas sur une ligne. ----- */
/* fr, tr : burger sous 1230 px */
@media (max-width: 1229px) {
  html:is(:lang(fr), :lang(tr)) .site-header { --g: 8px; }
  html:is(:lang(fr), :lang(tr)) .site-header .header-inner { gap: 12px; padding: 0 20px; height: 68px; }
  html:is(:lang(fr), :lang(tr)) .site-header .brand { margin-right: auto; }
  html:is(:lang(fr), :lang(tr)) .site-header .burger { display: flex; order: 5; }
  html:is(:lang(fr), :lang(tr)) .site-header .lang-switcher { order: 3 !important; }
  html:is(:lang(fr), :lang(tr)) .site-header .nav-cta { order: 4; display: inline-flex; padding: 0 18px; }
  html:is(:lang(fr), :lang(tr)) .site-header .brand-sub { display: block; }
  html:is(:lang(fr), :lang(tr)) .site-header .main-nav { display: none; }
  html:is(:lang(fr), :lang(tr)) .site-header .main-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 8px;
    padding: 14px 20px 20px;
    background: #FAF6EE;
    border-bottom: 1px solid rgba(139, 126, 90, 0.18);
    box-shadow: 0 14px 30px rgba(46, 31, 26, 0.1);
  }
  html:is(:lang(fr), :lang(tr)) .site-header .main-nav.is-open a:not(.nav-externe),
  html:is(:lang(fr), :lang(tr)) .site-header .main-nav.is-open a.nav-externe {
    height: 46px;
    font-size: 15px;
    justify-content: center;
    align-self: stretch;
    padding: 0 20px;
  }
  html:is(:lang(fr), :lang(tr)) .site-header .main-nav.is-open a.nav-externe { margin-top: 6px; }
}
/* en : burger sous 1280 px */
@media (max-width: 1279px) {
  html:is(:lang(en)) .site-header { --g: 8px; }
  html:is(:lang(en)) .site-header .header-inner { gap: 12px; padding: 0 20px; height: 68px; }
  html:is(:lang(en)) .site-header .brand { margin-right: auto; }
  html:is(:lang(en)) .site-header .burger { display: flex; order: 5; }
  html:is(:lang(en)) .site-header .lang-switcher { order: 3 !important; }
  html:is(:lang(en)) .site-header .nav-cta { order: 4; display: inline-flex; padding: 0 18px; }
  html:is(:lang(en)) .site-header .brand-sub { display: block; }
  html:is(:lang(en)) .site-header .main-nav { display: none; }
  html:is(:lang(en)) .site-header .main-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 8px;
    padding: 14px 20px 20px;
    background: #FAF6EE;
    border-bottom: 1px solid rgba(139, 126, 90, 0.18);
    box-shadow: 0 14px 30px rgba(46, 31, 26, 0.1);
  }
  html:is(:lang(en)) .site-header .main-nav.is-open a:not(.nav-externe),
  html:is(:lang(en)) .site-header .main-nav.is-open a.nav-externe {
    height: 46px;
    font-size: 15px;
    justify-content: center;
    align-self: stretch;
    padding: 0 20px;
  }
  html:is(:lang(en)) .site-header .main-nav.is-open a.nav-externe { margin-top: 6px; }
}
/* it : burger sous 1310 px */
@media (max-width: 1309px) {
  html:is(:lang(it)) .site-header { --g: 8px; }
  html:is(:lang(it)) .site-header .header-inner { gap: 12px; padding: 0 20px; height: 68px; }
  html:is(:lang(it)) .site-header .brand { margin-right: auto; }
  html:is(:lang(it)) .site-header .burger { display: flex; order: 5; }
  html:is(:lang(it)) .site-header .lang-switcher { order: 3 !important; }
  html:is(:lang(it)) .site-header .nav-cta { order: 4; display: inline-flex; padding: 0 18px; }
  html:is(:lang(it)) .site-header .brand-sub { display: block; }
  html:is(:lang(it)) .site-header .main-nav { display: none; }
  html:is(:lang(it)) .site-header .main-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 8px;
    padding: 14px 20px 20px;
    background: #FAF6EE;
    border-bottom: 1px solid rgba(139, 126, 90, 0.18);
    box-shadow: 0 14px 30px rgba(46, 31, 26, 0.1);
  }
  html:is(:lang(it)) .site-header .main-nav.is-open a:not(.nav-externe),
  html:is(:lang(it)) .site-header .main-nav.is-open a.nav-externe {
    height: 46px;
    font-size: 15px;
    justify-content: center;
    align-self: stretch;
    padding: 0 20px;
  }
  html:is(:lang(it)) .site-header .main-nav.is-open a.nav-externe { margin-top: 6px; }
}
/* de : burger sous 1320 px */
@media (max-width: 1319px) {
  html:is(:lang(de)) .site-header { --g: 8px; }
  html:is(:lang(de)) .site-header .header-inner { gap: 12px; padding: 0 20px; height: 68px; }
  html:is(:lang(de)) .site-header .brand { margin-right: auto; }
  html:is(:lang(de)) .site-header .burger { display: flex; order: 5; }
  html:is(:lang(de)) .site-header .lang-switcher { order: 3 !important; }
  html:is(:lang(de)) .site-header .nav-cta { order: 4; display: inline-flex; padding: 0 18px; }
  html:is(:lang(de)) .site-header .brand-sub { display: block; }
  html:is(:lang(de)) .site-header .main-nav { display: none; }
  html:is(:lang(de)) .site-header .main-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 8px;
    padding: 14px 20px 20px;
    background: #FAF6EE;
    border-bottom: 1px solid rgba(139, 126, 90, 0.18);
    box-shadow: 0 14px 30px rgba(46, 31, 26, 0.1);
  }
  html:is(:lang(de)) .site-header .main-nav.is-open a:not(.nav-externe),
  html:is(:lang(de)) .site-header .main-nav.is-open a.nav-externe {
    height: 46px;
    font-size: 15px;
    justify-content: center;
    align-self: stretch;
    padding: 0 20px;
  }
  html:is(:lang(de)) .site-header .main-nav.is-open a.nav-externe { margin-top: 6px; }
}
/* es, pt : burger sous 1330 px */
@media (max-width: 1329px) {
  html:is(:lang(es), :lang(pt)) .site-header { --g: 8px; }
  html:is(:lang(es), :lang(pt)) .site-header .header-inner { gap: 12px; padding: 0 20px; height: 68px; }
  html:is(:lang(es), :lang(pt)) .site-header .brand { margin-right: auto; }
  html:is(:lang(es), :lang(pt)) .site-header .burger { display: flex; order: 5; }
  html:is(:lang(es), :lang(pt)) .site-header .lang-switcher { order: 3 !important; }
  html:is(:lang(es), :lang(pt)) .site-header .nav-cta { order: 4; display: inline-flex; padding: 0 18px; }
  html:is(:lang(es), :lang(pt)) .site-header .brand-sub { display: block; }
  html:is(:lang(es), :lang(pt)) .site-header .main-nav { display: none; }
  html:is(:lang(es), :lang(pt)) .site-header .main-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 8px;
    padding: 14px 20px 20px;
    background: #FAF6EE;
    border-bottom: 1px solid rgba(139, 126, 90, 0.18);
    box-shadow: 0 14px 30px rgba(46, 31, 26, 0.1);
  }
  html:is(:lang(es), :lang(pt)) .site-header .main-nav.is-open a:not(.nav-externe),
  html:is(:lang(es), :lang(pt)) .site-header .main-nav.is-open a.nav-externe {
    height: 46px;
    font-size: 15px;
    justify-content: center;
    align-self: stretch;
    padding: 0 20px;
  }
  html:is(:lang(es), :lang(pt)) .site-header .main-nav.is-open a.nav-externe { margin-top: 6px; }
}
@media (max-width: 700px) {
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .brand-sub { display: none; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .header-inner { gap: 10px; padding: 0 16px; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .brand { gap: 10px; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .brand-mark { width: 38px; height: 38px; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .brand-name { font-size: 17px; white-space: normal; line-height: 1.1; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .lang-switcher > summary { min-width: 0; padding: 0 12px !important; }
  html:is(:lang(fr), :lang(en), :lang(it), :lang(es), :lang(pt), :lang(de), :lang(tr)) .site-header .nav-cta { display: none; }
}