/* ============================================================
   NAV.CSS — Navigation principale (partagée sur toutes les pages)
   ============================================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav-logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

/* Liens */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: rgba(37, 99, 235, 0.07);
}

/* Actions droite */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: white;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

/* Hamburger (mobile) */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  padding: 16px 24px 24px;
  z-index: 999;
}

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

.nav-mobile a {
  display: block;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover,
.nav-mobile a.active { color: var(--accent); }

.nav-mobile .nav-cta {
  display: block;
  text-align: center;
  margin-top: 16px;
  padding: 14px;
  border-radius: var(--radius-md);
}

/* Responsive */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-cta    { display: none; }
}