/* ============================================================
   INTERFACE3 — NAVIGATION
   ============================================================ */

/* ---- NAV WRAPPER ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  
max-width: 100%;
  box-sizing: border-box;

  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1.5px solid var(--border);
  transition: background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.nav.is-scrolled {
  box-shadow: var(--shadow-md);
}
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s6);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: var(--s3); /* ou s4 si tu veux plus d’air */
}

/* ---- LOGO ---- */

.nav-logo {
  display: flex;
  flex-direction: column;
  justify-content: center;   /* centre verticalement dans la nav */
  line-height: 1.5;          /* évite l’écrasement */
}

.nav__logo-mark {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--r-sm);
  background: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--t-fast);
}
[data-theme="dark"] .nav__logo-mark { background: var(--yellow); }
.nav__logo-mark:hover { background: var(--violet); }
[data-theme="dark"] .nav__logo-mark:hover { background: var(--violet); }
.nav__logo-monogram {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 900;
  color: var(--bg);
  letter-spacing: -0.02em;
}
[data-theme="dark"] .nav__logo-monogram { color: var(--text-on-yellow); }
.nav__logo-text { display: flex; flex-direction: column; line-height: 2; }
.nav__logo-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}
.nav__logo-tagline {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* ---- MENU DESKTOP ---- */
.nav__menu {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  flex: 1;
  justify-content: center;
}
.nav__item { position: relative; }
.nav__link {
  display: flex;
  align-items: center;
  gap: var(--s1);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding: var(--s3) var(--s4);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--s4);
  right: var(--s4);
  height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}
.nav__link:hover { color: var(--text-primary); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--text-primary); }

/* ---- ACTIONS DESKTOP ---- 
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--s3);
  flex-shrink: 0;
}
*/

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--s3);
  flex-shrink: 0;
}


.nav__utils {

  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: var(--text-xs);
  opacity: 0.75;
  margin-right: var(--s4);
}


.nav__utils {
  margin-bottom: 2px;
}



.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.nav__cta .btn {
  height: 36px;
}



/* ---- BURGER — visible sur TOUS les écrans (desktop inclus) ---- */
.nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--r-sm);
  background: transparent;
  border: 1.5px solid var(--border);
  cursor: pointer;
  padding: 0 7px;
  flex-shrink: 0;
  transition: border-color var(--t-fast);
}
.nav__burger:hover { border-color: var(--border-strong); }
.nav__burger-line {
  display: block;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-fast), width var(--t-base);
}
.nav__burger.is-open .nav__burger-line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.is-open .nav__burger-line:nth-child(2) { opacity: 0; }
.nav__burger.is-open .nav__burger-line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---- MOBILE OVERLAY ---- */
.nav__mobile {
  position: fixed;
  inset: 0;
  top: var(--nav-h);
  width: 100%;
  max-width: 100%;
  background: var(--bg);
  z-index: 99;
  padding: var(--s8) var(--gutter) var(--s12);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-x: hidden;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transform: translateX(100%);
  transition: opacity var(--t-base), transform var(--t-base);
}
.nav__mobile.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}
.nav__mobile-menu { display: flex; flex-direction: column; gap: 0; }
.nav__mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--text-primary);
  padding-block: var(--s4);
  border-bottom: 1.5px solid var(--border);
  letter-spacing: -0.01em;
  line-height: 1.1;
  transition: color var(--t-fast), padding-left var(--t-base);
}
.nav__mobile-link:hover {
  color: var(--violet);
  padding-left: var(--s4);
}
.nav__mobile-link span[aria-hidden="true"] {
  flex-shrink: 0;
  margin-left: var(--s3);
}
.nav__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--s4);
}
.nav__mobile-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  align-items: center;
}
.nav__mobile-meta {
  display: flex;
  gap: var(--s4);
  align-items: center;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .nav__menu { display: none; }
  .nav__actions .btn { display: none; }
  .nav__burger { display: flex; }
}
@media (max-width: 640px) {
  .nav__logo-tagline { display: none; }
  .nav__mobile-link { font-size: var(--text-3xl); }
}




@media (max-width: 1200px) {
  .nav__menu {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .nav__actions {
    gap: var(--s2);
  }
}

@media (max-width: 768px) {
  .nav__actions > .nav__utils > .lang-switcher {
    display: none;
  }

  .nav__mobile-meta {
    flex-wrap: wrap;
  }
}