/* =========================================================
   Menus déroulants de la navigation principale
   Partagé par toutes les pages (chargé après la feuille principale).
   ========================================================= */

.main-nav .nav-item { position: relative; }

/* Déclencheur : même rendu que les liens du menu */
.main-nav .nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  font-family: inherit;
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.56px;
  text-transform: uppercase;
  color: #1c1f40;
  white-space: nowrap;
  background: none;
  border: 0;
  cursor: pointer;
  transition: color .2s ease;
}
.main-nav .nav-link img { width: 9px; height: 5.55px; transition: transform .25s ease; }
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s cubic-bezier(.22,.61,.36,1);
}
.main-nav .nav-link:hover,
.main-nav .nav-link.is-current,
.main-nav .has-dropdown.is-open > .nav-link { color: #1e318f; }
.main-nav .nav-link.is-current::after { transform: scaleX(1); }
.main-nav .has-dropdown.is-open > .nav-link img { transform: rotate(180deg); }

/* Panneau */
.main-nav .dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 60;
  min-width: 300px;
  padding-top: 18px;                    /* pont invisible : le survol ne se perd pas */
  transform: translate(-50%, 6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s ease, transform .25s cubic-bezier(.22,.61,.36,1), visibility 0s linear .25s;
}
.main-nav .dropdown ul {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 2px;
  margin: 0;
  padding: 8px;
  list-style: none;
  background: #ffffff;
  border: 1px solid rgba(199,197,207,.4);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(28,31,64,.14);
}
.main-nav .has-dropdown.is-open > .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
  transition: opacity .2s ease, transform .25s cubic-bezier(.22,.61,.36,1), visibility 0s;
}
@media (hover: hover) and (min-width: 1024px) {
  .main-nav .has-dropdown:hover > .dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
    transition: opacity .2s ease, transform .25s cubic-bezier(.22,.61,.36,1), visibility 0s;
  }
  .main-nav .has-dropdown:hover > .nav-link { color: #1e318f; }
  .main-nav .has-dropdown:hover > .nav-link img { transform: rotate(180deg); }
}

/* Liens du panneau (on neutralise le style des liens du menu) */
.main-nav .dropdown a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 12px 14px;
  border: 0;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.3;
  letter-spacing: 0;
  text-transform: none;
  white-space: normal;
  color: #1c1f40;
  transition: background-color .2s ease, color .2s ease;
}
.main-nav .dropdown a::after { display: none; }
.main-nav .dropdown a:hover,
.main-nav .dropdown a:focus-visible { background: #f2f4fb; color: #1e318f; }
.main-nav .dropdown a.is-current { background: #eef1fb; color: #1e318f; }
.main-nav .dd-title { font-weight: 600; }
.main-nav .dd-desc { font-size: 13px; color: #5a5d7a; }

/* ---------- Tiroir mobile : accordéon ---------- */
@media (max-width: 1023px) {
  .main-nav .nav-item { position: static; }
  .main-nav .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 18px 0;
    border-bottom: 1px solid rgba(199,197,207,.4);
    text-align: left;
  }
  .main-nav .nav-link::after { display: none; }
  .main-nav .dropdown,
  .main-nav .has-dropdown.is-open > .dropdown {
    position: static;
    min-width: 0;
    padding-top: 0;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .3s cubic-bezier(.22,.61,.36,1);
  }
  .main-nav .has-dropdown.is-open > .dropdown { grid-template-rows: 1fr; }
  .main-nav .dropdown ul {
    min-height: 0;
    overflow: hidden;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
  }
  .main-nav .has-dropdown.is-open > .dropdown ul { padding: 6px 0 10px; }
  .main-nav .dropdown a { padding: 10px 12px; border-bottom: 0; }
  .main-nav .has-dropdown:not(.is-open) .dropdown a { visibility: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  .main-nav .dropdown, .main-nav .nav-link img { transition: none !important; }
}

/* Bouton « Nous contacter » du tiroir mobile : texte blanc sur fond bleu */
.main-nav a.nav-cta,
.main-nav a.nav-cta:hover { color: #ffffff; }