/* ═══════════════════════════════════════════════════════
   LUXTOOLS.LU — Navigation moderne full-width
   ═══════════════════════════════════════════════════════ */

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  width: 100%;
}

.nav-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex; align-items: center;
  height: 70px;
}

.nav-logo {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 900; font-size: 1.5rem;
  letter-spacing: -0.04em;
  text-decoration: none; color: #0F172A;
  margin-right: 56px; flex-shrink: 0;
  transition: color 0.2s ease;
}
.nav-logo:hover { color: #3B82F6; }
.nav-logo span { 
  background: linear-gradient(135deg, #3B82F6, #8B5CF6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation links */
.nav-links {
  display: flex; align-items: center; gap: 6px;
  flex: 1;
}

.nav-link {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: 10px;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.938rem; font-weight: 600;
  color: #64748B; text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap; cursor: pointer;
  border: none; background: transparent;
  position: relative;
}

.nav-link:hover { 
  color: #0F172A; 
  background: rgba(59,130,246,0.08);
}

.nav-link.active { 
  color: #3B82F6; 
  font-weight: 700;
}

.nav-link .nav-chevron {
  font-size: 0.65rem; 
  opacity: 0.6;
  transition: transform 0.25s ease;
}

/* DROPDOWN MENU */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-panel {
  position: absolute; 
  top: calc(100% + 12px); 
  left: 0;
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.08);
  padding: 12px;
  width: 380px;
  opacity: 0; 
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.nav-dropdown.open .nav-dropdown-panel {
  opacity: 1; 
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.nav-dropdown.open .nav-chevron { 
  transform: rotate(180deg); 
}

.nav-tool-item {
  display: flex; 
  align-items: center; 
  gap: 14px;
  padding: 14px 16px; 
  border-radius: 12px;
  text-decoration: none; 
  color: #0F172A;
  transition: all 0.2s ease;
  position: relative;
}

.nav-tool-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(135deg, #3B82F6, #8B5CF6);
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.nav-tool-item:hover {
  background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(139,92,246,0.05));
}

.nav-tool-item:hover::before {
  opacity: 1;
}

.nav-tool-icon { 
  font-size: 1.625rem; 
  line-height: 1; 
  flex-shrink: 0; 
}

.nav-tool-info { flex: 1; }

.nav-tool-name {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 700; 
  font-size: 0.938rem;
  color: #0F172A; 
  line-height: 1.3; 
  margin-bottom: 3px;
}

.nav-tool-desc { 
  font-size: 0.75rem; 
  color: #64748B; 
  line-height: 1.4; 
  font-weight: 500;
}

.nav-dropdown-divider { 
  height: 1px; 
  background: rgba(0,0,0,0.06); 
  margin: 8px 0; 
}

/* RIGHT SIDE */
.nav-right {
  display: flex; 
  align-items: center; 
  gap: 14px;
  margin-left: auto; 
  flex-shrink: 0;
}

/* Language switcher */
.lang-switch {
  display: flex; 
  align-items: center;
  background: rgba(0,0,0,0.04);
  border-radius: 10px; 
  padding: 4px; 
  gap: 2px;
}

.lang-btn {
  padding: 6px 14px; 
  border-radius: 8px;
  border: none; 
  background: transparent;
  color: #64748B;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.813rem; 
  font-weight: 700;
  cursor: pointer; 
  transition: all 0.2s ease;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.lang-btn:hover { 
  color: #0F172A; 
}

.lang-btn.active {
  background: #FFFFFF;
  color: #3B82F6;
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

/* CTA button */
.nav-cta {
  padding: 10px 22px; 
  border-radius: 10px;
  background: linear-gradient(135deg, #3B82F6, #2563EB);
  color: #FFFFFF;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.875rem; 
  font-weight: 700;
  text-decoration: none; 
  white-space: nowrap;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.01em;
  box-shadow: 0 2px 8px rgba(59,130,246,0.25);
}

.nav-cta:hover { 
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59,130,246,0.35);
}

/* Mobile hamburger */
.nav-hamburger {
  display: none; 
  flex-direction: column; 
  gap: 5px;
  padding: 8px; 
  cursor: pointer;
  border: none; 
  background: transparent; 
  margin-left: auto;
}

.nav-hamburger span {
  display: block; 
  width: 24px; 
  height: 2.5px;
  background: #0F172A; 
  border-radius: 3px;
  transition: all 0.25s ease;
}

/* MOBILE MENU */
.nav-mobile {
  display: none; 
  flex-direction: column;
  background: #FFFFFF;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: 20px 24px 24px;
  gap: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

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

.nav-mobile-link {
  display: flex; 
  align-items: center; 
  gap: 12px;
  padding: 14px 16px; 
  border-radius: 12px;
  text-decoration: none; 
  color: #0F172A;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.938rem; 
  font-weight: 600;
  transition: all 0.2s ease;
}

.nav-mobile-link:hover { 
  background: rgba(59,130,246,0.08);
}

.nav-mobile-section {
  font-size: 0.688rem; 
  font-weight: 800;
  letter-spacing: 0.1em; 
  text-transform: uppercase;
  color: #94A3B8; 
  padding: 18px 16px 8px;
}

.nav-mobile-langs {
  display: flex; 
  gap: 8px; 
  padding: 8px 16px;
}

.nav-mobile-lang {
  padding: 8px 18px; 
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.08);
  font-size: 0.813rem; 
  font-weight: 700;
  cursor: pointer; 
  text-decoration: none;
  color: #64748B; 
  background: transparent;
  transition: all 0.2s ease;
}

.nav-mobile-lang.active { 
  background: rgba(59,130,246,0.1); 
  color: #3B82F6; 
  border-color: rgba(59,130,246,0.3); 
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .nav-links, .nav-right { display: none; }
  .nav-hamburger { display: flex; }
  .nav-inner { padding: 0 24px; }
}