/* ============================================
   IIFIS — Navigation / Mega Menu
   ============================================ */

/* ── Top Bar ── */
.top-bar {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-xs);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.top-bar-left a,
.top-bar-right a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-xs);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: color var(--transition-fast);
}

.top-bar-left a:hover,
.top-bar-right a:hover {
  color: var(--color-secondary-light);
}

.top-bar-right {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.top-bar-right .social-links {
  display: flex;
  gap: var(--space-3);
}

.top-bar-right .social-links a {
  font-size: 14px;
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
}

/* ── Main Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition-base);
}

.navbar.has-topbar {
  top: 36px;
}

.navbar.scrolled {
  top: 0 !important;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.navbar.scrolled .container {
  height: var(--nav-height-scrolled);
}

/* ── Logo ── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.5px;
  transition: transform var(--transition-base);
}

.nav-logo:hover .nav-logo-icon {
  transform: scale(1.05);
}

.navbar.scrolled .nav-logo-icon {
  width: 40px;
  height: 40px;
  font-size: 12px;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
}

.nav-logo-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.nav-logo-tagline {
  font-size: 10px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  font-weight: 500;
}

@media (max-width: 1100px) {
  .nav-logo-text {
    display: none;
  }
}

/* ── Nav Menu (Desktop) ── */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-3);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-secondary);
}

.nav-link.active {
  color: var(--color-secondary);
}

.nav-link .arrow {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
  opacity: 0.5;
}

.nav-item:hover .nav-link .arrow {
  transform: rotate(180deg);
  opacity: 1;
}

/* ── Mega Menu Dropdown ── */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-light);
  padding: var(--space-6);
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  z-index: var(--z-dropdown);
}

.mega-menu-wide {
  min-width: 500px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.mega-menu-xl {
  min-width: 680px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-4);
}

/* Align edge menus */
.nav-item:last-child .mega-menu,
.nav-item:nth-last-child(2) .mega-menu,
.nav-item:nth-last-child(3) .mega-menu {
  left: auto;
  right: 0;
  transform: translateY(10px);
}

.mega-menu-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-secondary);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-light);
}

.mega-menu-links {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.mega-menu-links a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mega-menu-links a:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  padding-left: var(--space-4);
}

.mega-menu-links a .link-icon {
  width: 16px;
  height: 16px;
  color: var(--color-secondary);
  opacity: 0.6;
}

/* ── CTA in Nav ── */
.nav-cta {
  margin-left: var(--space-4);
}

.nav-cta .btn {
  padding: 8px 20px;
  font-size: 12px;
}

/* ── Mobile Menu Toggle ── */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: calc(var(--z-overlay) + 1);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  margin: 5px auto;
  transition: all var(--transition-base);
  border-radius: 2px;
}

.nav-toggle.active .nav-toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Mobile Overlay ── */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ── Mobile Responsive ── */
@media (max-width: 1100px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 340px;
    max-width: 90vw;
    height: 100vh;
    background: var(--color-bg);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--nav-height) + var(--space-4)) var(--space-6) var(--space-6);
    overflow-y: auto;
    z-index: var(--z-overlay);
    transition: right var(--transition-slow);
    box-shadow: var(--shadow-2xl);
    gap: 0;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    padding: var(--space-3) 0;
    font-size: var(--text-base);
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-light);
  }

  .mega-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0 0 var(--space-3) var(--space-4);
    opacity: 1;
    visibility: visible;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    min-width: 0;
    display: block;
  }

  .mega-menu-wide,
  .mega-menu-xl {
    display: block;
    min-width: 0;
  }

  .nav-item.open .mega-menu {
    max-height: 1000px;
  }

  .mega-menu-col {
    margin-bottom: var(--space-3);
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
    font-size: var(--text-sm);
  }
}