.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 var(--space-lg);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background 0.6s var(--ease-smooth), border-color 0.6s var(--ease-smooth);
}

.nav--scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.nav__logo {
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -1.5px;
  z-index: 1001;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Nav links — animated underline (Dennis Snellenberg style) */
.nav__link {
  font-size: var(--text-small);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.5s var(--ease-smooth);
  position: relative;
  padding-bottom: 2px;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.6s var(--ease-smooth);
}
.nav__link:hover { color: var(--white) !important; }
.nav__link:hover::after { width: 100%; }
.nav__link--active { color: var(--white); }
.nav__link--active::after { width: 100%; background: var(--red); }

/* Language toggle pill */
.nav__lang {
  display: flex;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.nav__lang-btn {
  padding: 6px 14px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  transition: all 0.4s var(--ease-smooth);
}
.nav__lang-btn--active {
  background: var(--red);
  color: white;
}
.nav__lang-btn:hover:not(.nav__lang-btn--active) {
  color: var(--white);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.5s var(--ease-smooth);
}
.nav__hamburger--open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger--open span:nth-child(2) { opacity: 0; }
.nav__hamburger--open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu overlay */
.nav__mobile {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s var(--ease-smooth);
}
.nav__mobile--open {
  opacity: 1;
  pointer-events: auto;
}
.nav__mobile .nav__link {
  font-size: 28px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.5s var(--ease-smooth), transform 0.5s var(--ease-smooth);
}
.nav__mobile .nav__link:hover {
  color: var(--white);
  transform: translateX(8px);
}

/* Breadcrumb (for inner pages) */
.nav__breadcrumb {
  font-size: var(--text-small);
  color: rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__breadcrumb a:hover { color: var(--red); }

@media (max-width: 639px) {
  .nav { padding: 0 var(--space-sm); }
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
}