/* ─── et-famille.css — en-tête, fil d'Ariane et pied communs ────────────────
   Famille Excellence Tertiaire (site principal, Observatoire des Immeubles
   Serviciels, Observatoire des Bureaux Opérés). Porté depuis
   observatoire-serviciel/public/index.html (styles .et-site-header), couleurs
   passées en variables. Chargé par toutes les pages de l'Observatoire ;
   comportement (menu mobile, déroulants) dans et-famille.js.
──────────────────────────────────────────────────────────────────────────── */
:root {
  --et-navy:      #1e3a8a;   /* bleu marine du site principal */
  --et-navy-ink:  #1e3a5f;
  --et-gold:      #8A6420;   /* or assombri : 5,4:1 sur blanc (texte 13 px) */
  --et-gold-line: #b8882a;   /* or d'origine, décoratif uniquement */
  --et-linkedin:  #0077b5;
  --et-linkedin-dark: #005582;
  --et-header-h:  70px;
}

body { padding-top: var(--et-header-h); }
section[id], [id="classement"], .tabs-wrap { scroll-margin-top: calc(var(--et-header-h) + 16px); }

.et-site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 950;
  background: #fff;
  box-shadow: 0 1px 20px rgba(0,0,0,.06);
  font-family: 'Inter', system-ui, sans-serif;
}
.et-nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--et-header-h);
}
.et-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: var(--et-navy);
  font-weight: 700;
  font-size: 1rem;
  white-space: nowrap;
}
.et-logo img { width: 46px; height: 46px; object-fit: contain; }
.et-logo-text { font-family: 'Playfair Display', Georgia, serif; }
.et-nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0; padding: 0;
  gap: 1rem;
  flex-wrap: nowrap;
}
.et-nav-menu > li { position: relative; }
.et-nav-menu a,
.et-dropdown-toggle {
  text-transform: uppercase;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--et-gold);
  text-decoration: none;
  white-space: nowrap;
  padding-bottom: 2px;
  position: relative;
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  line-height: inherit;
}
.et-nav-menu > li > a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--et-gold-line);
  transition: width .25s ease;
}
.et-nav-menu > li > a:hover::after,
.et-nav-menu > li > a.active::after { width: 100%; }
.et-nav-menu a.active,
.et-dropdown-toggle.active { color: var(--et-navy); font-weight: 700; }
.et-nav-dropdown > a::after { content: none !important; }
.et-caret { font-size: .65em; opacity: .6; margin-left: 2px; }
.et-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  min-width: 220px;
  padding: .5rem 0;
  margin: 0;
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0,0,0,.1);
  border-top: 2px solid var(--et-gold-line);
  z-index: 951;
  list-style: none;
  text-align: center;
}
/* Pont invisible : le survol ne se perd pas entre le déclencheur et le menu */
.et-dropdown-menu::before { content: ''; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.et-nav-dropdown:hover .et-dropdown-menu,
.et-nav-dropdown:focus-within .et-dropdown-menu,
.et-nav-dropdown.is-open .et-dropdown-menu { display: block; }
/* Refermé par Échap alors que le focus reste sur le déclencheur */
@media (min-width: 901px) {
  .et-nav-dropdown.is-dismissed .et-dropdown-menu { display: none; }
}
.et-dropdown-menu li { margin: 0; }
.et-dropdown-menu a {
  display: block;
  padding: .65rem 1.2rem;
  font-size: .78rem;
  font-weight: 600;
  color: var(--et-navy-ink) !important;
  white-space: nowrap;
}
.et-dropdown-menu a[aria-current="page"] { background: rgba(30,58,138,.06); }
.et-dropdown-menu a:hover,
.et-dropdown-menu a:focus-visible { background: rgba(30,58,138,.06); color: var(--et-gold) !important; }
.et-nav-menu a:focus-visible,
.et-dropdown-toggle:focus-visible,
.et-mobile-toggle:focus-visible,
.et-linkedin-btn:focus-visible { outline: 2px solid var(--et-navy); outline-offset: 3px; border-radius: 3px; }
.et-linkedin-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: var(--et-linkedin);
  color: #fff !important;
  border-radius: 6px;
  text-decoration: none !important;
  font-weight: 600;
  font-size: .84rem;
  white-space: nowrap;
  transition: background .2s;
  margin-left: 1rem;
}
.et-linkedin-btn:hover { background: var(--et-linkedin-dark); }
.et-mobile-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: rgba(30,58,138,.08);
  border: 1px solid rgba(30,58,138,.25);
  border-radius: 12px;
  cursor: pointer;
  font-size: 24px;
  color: var(--et-navy);
  line-height: 1;
  flex-shrink: 0;
}
@media (max-width: 1100px) {
  .et-nav-menu { gap: .75rem; }
  .et-linkedin-btn { display: none; }
}
@media (max-width: 900px) {
  .et-nav-container { padding: 0 1rem; }
  .et-logo-text { display: none; }
  .et-mobile-toggle { display: flex; }
  .et-nav-menu {
    position: fixed;
    top: var(--et-header-h); right: -100%;
    width: 75%; max-width: 300px;
    height: calc(100vh - var(--et-header-h));
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    box-shadow: -2px 0 14px rgba(0,0,0,.12);
    transition: right .3s ease;
    z-index: 949;
    overflow-y: auto;
    visibility: hidden;
  }
  .et-nav-menu.active { right: 0; visibility: visible; }
  .et-nav-menu a, .et-dropdown-toggle { font-size: 1.05rem !important; }
  .et-caret { display: none; }
  .et-dropdown-menu {
    display: block;
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: .25rem 0 0 1.2rem;
    min-width: auto;
    text-align: left;
  }
  .et-dropdown-menu::before { display: none; }
  .et-dropdown-menu a { padding: .4rem 0; text-align: left; font-size: .95rem !important; }
}

/* ─── Fil d'Ariane ────────────────────────────────────────────────────────── */
.et-breadcrumb {
  background: var(--et-crumb-bg, #fff);
  border-bottom: 1px solid rgba(0,0,0,.06);
  font-family: 'Inter', system-ui, sans-serif;
}
.et-breadcrumb ol {
  max-width: 1400px;
  margin: 0 auto;
  padding: 8px 48px;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--et-crumb-ink, #5b5550);
}
.et-breadcrumb li + li::before { content: '›'; margin-right: 6px; opacity: .7; }
.et-breadcrumb a { color: var(--et-navy); text-decoration: none; }
.et-breadcrumb a:hover { text-decoration: underline; }
.et-breadcrumb [aria-current="page"] { font-weight: 600; }
@media (max-width: 768px) { .et-breadcrumb ol { padding: 8px 16px; } }

/* ─── Pied de page commun (pages secondaires) ──────────────────────────── */
.et-footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 13px;
  line-height: 1.6;
}
.et-footer-legal a { text-decoration: none; }
.et-footer-legal a:hover { text-decoration: underline; }

@media print {
  .et-site-header, .et-breadcrumb { display: none; }
  body { padding-top: 0; }
}