/* ==========================================================================
   Navbar — sticky, transparent-on-top, glass-on-scroll, mega menu
   ========================================================================== */

.nx-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), height var(--transition-base);
}

.nx-navbar.is-scrolled {
  height: 72px;
  background: var(--nav-bg-scrolled);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 8px 30px -12px rgba(15, 23, 42, 0.12);
}

.nx-navbar .container-xl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* ---- Brand ---- */
.nx-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text-primary);
}
.nx-brand .brand-mark {
  width: 98px;
  height:98px;
  display: grid;
  place-items: center;
  /* border-radius: var(--radius-sm); */
  /* background: var(--gradient-primary); */
  color: #fff;
  font-size: 1.1rem;
  /* box-shadow: var(--glow-blue); */
}

/* ---- Nav links ---- */
.nx-nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
}

.nx-nav-links > li {
  position: relative;
}

.nx-nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.nx-nav-link:hover {
  color: var(--color-blue);
  background: color-mix(in srgb, var(--color-blue) 8%, transparent);
}
.nx-nav-link.active {
  color: #fff !important;
  /* background: var(--gradient-primary); */
  background: #274EBA;
  box-shadow: var(--glow-blue);
}

[data-theme="dark"] .nx-nav-link:hover {
  color: #9db4ff;
}

.nx-nav-link i.chevron {
  font-size: 0.65rem;
  transition: transform var(--transition-fast);
}
.nx-nav-links > li:hover .nx-nav-link i.chevron {
  transform: rotate(180deg);
}

/* ---- Simple dropdown ---- */
.nx-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 230px;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow-hover);
  padding: 0.6rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
  z-index: 10;
}
.nx-nav-links > li:hover .nx-dropdown,
.nx-nav-links > li:focus-within .nx-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nx-dropdown a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.nx-dropdown a:hover {
  background: color-mix(in srgb, var(--color-blue) 8%, transparent);
  color: var(--color-blue);
}
.nx-dropdown a.active {
  background: var(--gradient-primary);
  color: #fff !important;
}
.nx-dropdown a i {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: color-mix(in srgb, var(--color-purple) 12%, transparent);
  color: var(--color-purple);
  font-size: 0.85rem;
}
.nx-dropdown a.active i {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

/* ---- Mega menu ---- */
.nx-mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 8px);
  width: min(880px, 90vw);
  background: var(--bg-glass-strong);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow-hover);
  padding: 1.75rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 10;
}
.nx-nav-links > li:hover .nx-mega,
.nx-nav-links > li:focus-within .nx-mega {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.nx-mega-col h6 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}
.nx-mega-col a {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.55rem 0.4rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.15rem;
}
.nx-mega-col a:hover {
  background: color-mix(in srgb, var(--color-blue) 7%, transparent);
}
.nx-mega-col a.active {
  background: var(--gradient-primary);
  box-shadow: var(--glow-blue);
}
.nx-mega-col a.active strong,
.nx-mega-col a.active span {
  color: #fff !important;
}
.nx-mega-col a i {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.85rem;
}
.nx-mega-col a.active i {
  background: rgba(255, 255, 255, 0.25);
}
.nx-mega-col a strong {
  display: block;
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 600;
}
.nx-mega-col a span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.nx-mega-promo {
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: #fff;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}
.nx-mega-promo h6 {
  color: #fff;
  font-size: 1rem;
  margin: 0;
}
.nx-mega-promo p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.82rem;
  margin: 0;
}
.nx-mega-promo a.btn-mini {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.18);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  margin-top: 0.4rem;
}

/* ---- Right side actions ---- */
.nx-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
}
.theme-toggle:hover {
  color: var(--color-blue);
  border-color: var(--color-blue);
}
.theme-toggle .fa-sun {
  display: none;
}
[data-theme="dark"] .theme-toggle .fa-sun {
  display: block;
}
[data-theme="dark"] .theme-toggle .fa-moon {
  display: none;
}

.nx-nav-cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nx-hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nx-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}
.nx-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nx-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nx-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobile offcanvas menu ---- */
@media (max-width: 991.98px) {
  .nx-nav-links,
  .nx-nav-cta .btn {
    display: none;
  }
  .nx-hamburger {
    display: flex;
  }
}

.nx-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(340px, 88vw);
  height: 100vh;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--border-glass);
  z-index: var(--z-overlay);
  padding: 1.75rem;
  overflow-y: auto;
  transition: right var(--transition-slow);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.25);
}
.nx-mobile-menu.active {
  right: 0;
}
.nx-mobile-menu .close-mobile {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-surface-alt);
  display: grid;
  place-items: center;
  cursor: pointer;
  margin-left: auto;
}
.nx-mobile-menu ul {
  list-style: none;
  margin: 1.5rem 0;
}
.nx-mobile-menu > ul > li {
  border-bottom: 1px solid var(--border-glass);
}
.nx-mobile-menu a.nx-nav-link {
  display: flex;
  width: 100%;
  padding: 0.9rem 0.25rem;
  border-radius: 0;
  justify-content: space-between;
}
.nx-mobile-submenu {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  padding-left: 0.75rem;
}
.nx-mobile-submenu.open {
  max-height: 500px;
  padding-bottom: 0.5rem;
}
.nx-mobile-submenu a {
  display: block;
  padding: 0.55rem 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.nx-mobile-submenu a.active {
  color: #fff !important;
  font-weight: 600;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
}
.nx-nav-link.submenu-toggle.active {
  color: var(--color-blue) !important;
  font-weight: 600;
  background: color-mix(in srgb, var(--color-blue) 8%, transparent) !important;
  box-shadow: none;
}

.nx-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 7, 15, 0.55);
  backdrop-filter: blur(2px);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
}
.nx-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ---- Scroll progress bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-primary);
  z-index: 2001;
  transition: width 0.1s linear;
}