/* =========================================================================
   Donatien Roche — bandeau fixe + navigation
   ========================================================================= */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-inline: var(--gutter);
  background: rgba(2, 19, 34, 0.98);
  border-bottom: 1px solid rgba(188, 143, 86, 0.32);
}
@supports (backdrop-filter: blur(6px)) {
  .site-header { background: rgba(2, 19, 34, 0.9); backdrop-filter: blur(8px); }
}

/* --- Logo --- */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-on-ink);
}
.brand__mark { width: auto; height: 38px; flex: none; }
.brand__lockup { display: block; }
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1.15;
  white-space: nowrap;
}
.brand__role {
  display: block;
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-bronze);
  margin-top: 4px;
  white-space: nowrap;
}
@media (max-width: 420px) {
  .brand__name { font-size: 0.8125rem; letter-spacing: 0.14em; }
  .brand__role { font-size: 0.5625rem; }
}

/* --- Navigation bureau --- */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 1.9vw, 1.7rem);
}
.nav__link {
  position: relative;
  font-size: var(--fs-nav);
  letter-spacing: 0.1em;
  line-height: 1.16;
  text-align: center;
  text-transform: uppercase;
  color: var(--c-on-ink);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
/* libellés de services sur deux lignes : le saut ne s'applique qu'ici */
.nav__link br { display: none; }
@media (min-width: 1241px) { .nav__link br { display: inline; } }
/* zone tactile ≥ 44 px sans impact visuel */
.nav__link::before {
  content: "";
  position: absolute;
  inset: -15px -10px;
}
.nav__link:hover { color: var(--c-bronze); }
.nav__link[aria-current="page"] {
  color: var(--c-bronze);
  border-bottom-color: var(--c-bronze);
}

/* --- Bouton burger --- */
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  background: none;
  border: 0;
  padding: 0;
}
.nav-toggle__bar {
  display: block;
  width: 26px;
  height: 1.5px;
  background: var(--c-on-ink);
  transition: transform var(--ease), opacity var(--ease), width var(--ease),
    background var(--ease);
}
.nav-toggle__bar:nth-child(2) { width: 20px; }
.nav-toggle__bar:nth-child(3) { width: 14px; background: var(--c-bronze); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { width: 26px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  background: var(--c-on-ink);
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --- Panneau mobile --- */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  z-index: 55;
  background: var(--c-ink);
  border-bottom: 1px solid rgba(188, 143, 86, 0.32);
  display: flex;
  flex-direction: column;
  padding: 0.75rem var(--gutter) 1.75rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}
.mobile-menu[data-open="true"] {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mobile-menu__link {
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-on-ink);
  padding: 1rem 0;
  border-bottom: 1px solid rgba(241, 240, 240, 0.1);
}
.mobile-menu__link:last-of-type { border-bottom: 0; }
.mobile-menu__link[aria-current="page"] { color: var(--c-bronze); }
.mobile-menu .btn { margin-top: 1.125rem; }

/* --- Bascule bureau / mobile ---
   Seuil relevé à 1240 px : la nav bureau porte 5 liens (dont 3 sur deux
   lignes) + le bouton, elle a besoin de largeur. */
@media (max-width: 1240px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
}
@media (min-width: 1241px) {
  .mobile-menu { display: none; }
}

/* Corps décalé sous le header quand le contenu n'est pas un hero plein écran */
.has-offset-header { padding-top: var(--header-h); }