/* ============================================================
   TALENTUM — Navbar minimaliste (Step 3.6b)
   Fond off-white fixe — cohérence avec le footer.
   Logo.webp (conçu pour fond clair).
   Textes en --color-text-on-light (noir) au repos.
   Hover links : gold underline via .animated-link (composant Step 3.0).
   Box-shadow gold whisper en bas pour séparation sur sections claires.
   Z-index 230 (au-dessus signature 210 et mobile-menu 220).
   ============================================================ */

/* ---- Navbar principale ---- */

#site-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  z-index: 230;
  pointer-events: none;
  transform: translateY(-100%);
  opacity: 0;
  transition: opacity 0.8s var(--ease-cinematic),
              transform 0.8s var(--ease-cinematic);
  background: transparent;
}

#site-navbar[data-state="visible"] {
  pointer-events: auto;
  transform: translateY(0);
  opacity: 1;
  background: var(--color-bg-light);
  box-shadow: 0 1px 0 var(--color-divider-gold-whisper);
}

.navbar__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
  max-width: 1600px;
  margin: 0 auto;
}

/* ---- Logo ---- */

.navbar__logo {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.navbar__logo-img {
  height: clamp(28px, 3vw, 40px);
  width: auto;
  display: block;
}

/* ---- Navigation desktop ---- */

.navbar__nav--desktop {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.navbar__link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-small);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-on-light);
  text-decoration: none;
}

/* ---- Burger (caché desktop, visible mobile) ---- */

.navbar__burger {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
}

.navbar__burger-line {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text-on-light);
  transition: transform var(--duration-normal) var(--ease-cinematic),
              opacity var(--duration-fast) var(--ease-cinematic);
}

/* Burger → X quand menu ouvert */
.navbar__burger[aria-expanded="true"] .navbar__burger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.navbar__burger[aria-expanded="true"] .navbar__burger-line:nth-child(2) {
  opacity: 0;
}
.navbar__burger[aria-expanded="true"] .navbar__burger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ================================================================
   MENU MOBILE — panel noir depuis la droite, 50vw
   Z-index 220 (sous navbar 230 pour que le burger reste cliquable)
   ================================================================ */

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50vw;
  z-index: 220;
  background: var(--color-bg-primary);
  border-left: 1px solid var(--color-divider-gold-whisper);
  transform: translateX(100%);
  transition: transform 0.6s var(--ease-cinematic);
  display: none;
}

.mobile-menu[data-state="open"] {
  transform: translateX(0);
}

/* Overlay sombre sur la moitié gauche — cliquable pour fermer */
.mobile-menu[data-state="open"]::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 50vw;
  height: 100%;
  background: rgba(10, 10, 10, 0.6);
  cursor: pointer;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  padding: var(--space-2xl) var(--space-lg);
  gap: var(--space-lg);
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: color var(--duration-fast) var(--ease-expo-out);
}

.mobile-menu__link:hover,
.mobile-menu__link:focus-visible {
  color: var(--color-accent-gold);
}

/* ---- Responsive ---- */

@media (max-width: 767px) {
  #site-navbar {
    height: 60px;
  }
  .navbar__nav--desktop {
    display: none;
  }
  .navbar__burger {
    display: flex;
  }
  .mobile-menu {
    display: block;
  }
}

/* Sur très petits écrans (< 380px) : menu plein écran */
@media (max-width: 379px) {
  .mobile-menu {
    width: 100vw;
  }
  .mobile-menu[data-state="open"]::before {
    display: none;
  }
}

/* ---- Reduced motion ---- */

@media (prefers-reduced-motion: reduce) {
  #site-navbar {
    transition: opacity 0.3s linear;
    transform: none !important;
  }
  #site-navbar[data-state="visible"] {
    transform: none !important;
  }
  .mobile-menu {
    transition: opacity 0.2s linear;
    transform: translateX(100%);
  }
  .mobile-menu[data-state="open"] {
    transform: translateX(0);
  }
  .navbar__burger-line {
    transition: opacity 0.2s linear;
  }
}