/* ==========================================================================
   navbar.css — Navigation principale desktop + mobile + theme-toggle + zoom A−/A+
   Source : new-template/index.html (inline <style>, section NAVBAR)
   Scope  : global (toutes les pages via inc_header.cfm)
   Dépend de : tokens.css (variables :root, HSL components)

   NOTE : backdrop-filter:blur + hsla volontairement en CSS custom —
   non couvrable proprement par Tailwind avec transparence HSL dynamique.
   Les hsla() hardcodées sont remplacées par les composants HSL de tokens.css.
   ========================================================================== */

/* ===== NAVBAR FIXE ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: hsla(var(--bgh), var(--bgs), var(--bgl), 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* ===== LOGO ===== */
.navbar-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.05em;
}

/* ===== LIENS DESKTOP ===== */
.navbar-links {
  display: flex;
  gap: 4px;
  align-items: center;
}

.navbar-links a {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.3s;
}

.navbar-links a:hover,
.navbar-links a.actif {
  color: var(--primary);
}

/* ===== LIEN INDISPONIBLE ===== */
.navbar-link--unavailable {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===== THÈME : BOUTON TOGGLE + ZOOM A−/A+ ===== */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle,
.zoom-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.3s, border-color 0.3s, background 0.3s;
  line-height: 1;
  padding: 0;
  flex-shrink: 0;
}

.zoom-btn {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.theme-toggle:hover,
.zoom-btn:hover:not(:disabled) {
  color: var(--primary);
  border-color: var(--primary);
  background: hsla(var(--ph), var(--ps), var(--pl), 0.1);
}

.theme-toggle:focus-visible,
.zoom-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Zoom : état désactivé aux bornes (80 % / 160 %) */
.zoom-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Masquer/afficher les icônes selon le thème */
[data-theme="dark"] .theme-toggle .icon-light,
[data-theme="light"] .theme-toggle .icon-dark {
  display: none;
}

/* ===== SELECTEUR DE LANGUE ===== */
.navbar-langs {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.navbar-langs .active,
.navbar-langs a.actif {
  color: var(--primary);
  font-weight: 600;
}

.navbar-langs span:not(.active),
.navbar-langs a:not(.actif) {
  cursor: pointer;
  transition: color 0.3s;
}

.navbar-langs span:not(.active):hover,
.navbar-langs a:not(.actif):hover {
  color: var(--primary);
}

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* ===== MENU MOBILE ===== */
.mobile-menu {
  display: none;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 1.5rem 1rem;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 0.75rem;
  color: var(--muted);
  border-bottom: 1px solid hsla(var(--bgh), var(--bgs), var(--bgl), 0.5);
  transition: color 0.3s;
  font-size: 0.95rem;
}

.mobile-menu a:hover {
  color: var(--primary);
}

/* ===== SELECTEUR LANGUE MOBILE ===== */
.mobile-langs {
  display: flex;
  gap: 1rem;
  padding: 1rem 0.75rem 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.mobile-langs .active,
.mobile-langs a.actif {
  color: var(--primary);
  font-weight: 600;
}

.mobile-langs span:not(.active),
.mobile-langs a:not(.actif) {
  cursor: pointer;
}

/* ===== DROPDOWN "PLUS" (desktop) ===== */
.navbar-dropdown {
  position: relative;
}

.navbar-dropdown-btn {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.3s;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.navbar-dropdown-btn:hover,
.navbar-dropdown-btn.actif {
  color: var(--primary);
}

.navbar-dropdown-chevron {
  font-size: 0.65em;
  margin-left: 0.2em;
  display: inline-block;
  transition: transform 0.3s;
}

.navbar-dropdown-btn[aria-expanded="true"] .navbar-dropdown-chevron {
  transform: rotate(180deg);
}

.navbar-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: hsla(var(--bgh), var(--bgs), var(--bgl), 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.375rem 0;
  z-index: 60;
}

.navbar-dropdown-menu.open {
  display: block;
}

.navbar-dropdown-menu a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.3s, background 0.2s;
  white-space: nowrap;
}

.navbar-dropdown-menu a:hover {
  color: var(--primary);
  background: hsla(var(--bgh), var(--bgs), var(--surface-l), 0.5);
}

.navbar-dropdown-menu a.actif {
  color: var(--primary);
}

@media (hover: hover) and (pointer: fine) {
  .navbar-dropdown:hover .navbar-dropdown-menu {
    display: block;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .navbar-links,
  .navbar-langs {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .navbar-dropdown {
    display: none;
  }

  .theme-toggle,
  .zoom-btn {
    position: relative;
    z-index: 1;
  }
}

@media (min-width: 1440px) {
  .navbar-inner {
    max-width: 1600px;
  }
}

@media (min-width: 1920px) {
  .navbar-inner {
    max-width: 1800px;
  }
}