:root {
  /* Dynamic Theme Variables */
  --header-primary: var(--primary-text, #0f172a);
  --header-secondary: var(--muted-text, #475569);
  --header-accent: var(--accent, #1ab76c);
  --header-accent-strong: var(--accent-strong, #11935a);
  --header-neutral: var(--bg-section, #ffffff);
  --header-border: color-mix(in srgb, var(--header-primary) 8%, transparent);

  /* UX Helpers */
  --header-height: 84px;
  --header-height-mobile: 74px;
  --header-shadow: 0 50px 100px -20px rgba(50, 50, 93, 0.12), 0 30px 60px -30px rgba(0, 0, 0, 0.15);
  --dropdown-radius: 12px;
  --dropdown-shadow: 0 50px 100px -20px rgba(50, 50, 93, 0.15), 0 30px 60px -30px rgba(0, 0, 0, 0.2);
  --transition-smooth: all 400ms cubic-bezier(0.15, 0.3, 0.25, 1);
  --transition-fast: all 200ms ease;
}

/* Base Header */
.site-header-next {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 2000;
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--header-border);
  transition: var(--transition-smooth);
}

body {
  padding-top: var(--header-height);
}

@media (max-width: 1024px) {
  body {
    padding-top: calc(var(--header-height-mobile) + 24px);
    /* Extra 24px for breathing room */
  }
}

body.nav-open {
  overflow: hidden;
}

.site-header-next__shell {
  max-width: 1140px;
  min-height: var(--header-height);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Brand */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--header-primary);
  text-decoration: none;
  flex-shrink: 0;
  z-index: 10;
}

.site-brand__image {
  width: auto;
  max-height: 40px;
}

.site-brand__monogram {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, var(--header-primary), #334155);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.site-brand__text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-brand__title {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--header-primary);
}

.site-brand__subtitle {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--header-secondary);
  opacity: 0.8;
}

/* Central Navigation */
.next-nav {
  height: 100%;
}

.next-nav__menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 100%;
}

.next-nav__menu>li {
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
}

.next-nav__menu>li>.menu-link {
  padding: 8px 14px;
  color: var(--header-primary);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  transition: var(--transition-fast);
  white-space: nowrap;
  display: flex;
  align-items: center;
}

.next-nav__menu>li>.menu-link:hover {
  opacity: 1;
}

.menu-link__indicator {
  display: inline-flex;
  margin-left: 6px;
  font-size: 14px;
  transition: transform 0.3s ease;
  line-height: 1;
}

.is-open .menu-link__indicator {
  transform: rotate(180deg);
}

/* Morphing Background Container */
.dropdown-background {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  perspective: 2000px;
  pointer-events: none;
  z-index: -1;
}

.dropdown-background__container {
  position: absolute;
  top: 0;
  left: 0;
  width: 400px;
  height: 300px;
  background: #ffffff;
  border-radius: var(--dropdown-radius);
  box-shadow: var(--dropdown-shadow);
  transform-origin: 0 0;
  transition: var(--transition-smooth);
  opacity: 0;
  transform: rotateX(-15deg);
  overflow: hidden;
}

.site-header-next.dropdown-active .dropdown-background__container {
  opacity: 1;
  pointer-events: auto;
}

.dropdown-background__arrow {
  position: absolute;
  top: -6px;
  left: 0;
  width: 12px;
  height: 12px;
  background: #ffffff;
  transform: translateX(-50%) rotate(45deg);
  border-radius: 2px 0 0 0;
  box-shadow: -3px -3px 5px rgba(0, 0, 0, 0.02);
  transition: var(--transition-smooth);
  z-index: 2;
}

.dropdown-background__bg {
  position: absolute;
  inset: 0;
  background: #ffffff;
  z-index: 1;
}

/* Mega Dropdown Panels */
.mega-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  transform: translateX(var(--dropdown-x, 0px));
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 250ms ease, visibility 250ms ease;
}

.next-nav__menu>li.is-open .mega-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mega-dropdown__inner {
  padding: 24px;
  min-width: 320px;
  max-width: min(820px, calc(100vw - 40px));
  overflow: hidden;
}

.mega-dropdown__content {
  width: 100%;
  overflow: hidden;
}

.mega-dropdown__grid {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, minmax(0, auto));
  grid-auto-columns: minmax(230px, 1fr);
  gap: 12px 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: start;
}

.mega-dropdown__grid>li {
  min-width: 0;
}

.mega-dropdown__grid>li:nth-child(n + 15) {
  display: none;
}

.mega-dropdown__grid .menu-link {
  gap: 10px;
  align-items: flex-start;
}

.mega-dropdown__grid .menu-link__text,
.mega-dropdown__grid .menu-link__description {
  word-break: break-word;
}

/* Menu Item Styles */
.menu-link {
  display: flex;
  gap: 16px;
  text-decoration: none;
  color: var(--header-primary);
  transition: var(--transition-fast);
}

.menu-link__icon {
  display: none;
  /* Hidden by default, only show if specifically added */
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: color-mix(in srgb, var(--header-accent) 15%, transparent);
  border-radius: 6px;
  transition: var(--transition-fast);
}

.has-icon .menu-link__icon {
  display: block;
}

.menu-link:hover .menu-link__icon {
  background: var(--header-accent);
}

.menu-link__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.menu-link__text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--header-primary);
}

.menu-link__description {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--header-secondary);
  line-height: 1.4;
}

/* Specialized Heading Item */
.menu-item-heading {
  margin-bottom: 8px;
}

.menu-item-heading>.menu-link {
  pointer-events: none;
  opacity: 0.4;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.menu-item-heading>.menu-link .menu-link__icon {
  display: none;
}

/* Right Section Buttons */
.site-header-next__right {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.next-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.next-btn--ghost {
  color: var(--header-primary);
}

.next-btn--ghost:hover {
  background: rgba(0, 0, 0, 0.05);
}

.next-btn--accent {
  background: var(--header-primary);
  color: #ffffff;
}

.next-btn--accent:hover {
  background: #1e293b;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Mobile Toggles */
.next-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
  z-index: 2100;
}

.next-nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--header-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .next-nav {
    display: none;
  }

  .next-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .site-header-next.is-mobile-open .next-nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header-next.is-mobile-open .next-nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header-next.is-mobile-open .next-nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Mobile Full-screen Panel */
  .next-nav {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: #ffffff;
    padding-top: var(--header-height-mobile);
    transform: translateX(100%);
    transition: var(--transition-smooth);
    overflow-y: auto;
  }

  .site-header-next.is-mobile-open .next-nav {
    transform: translateX(0);
  }

  .next-nav__menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px 16px 18px;
  }

  .next-nav__menu>li {
    width: 100%;
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    border-bottom: 1px solid var(--header-border);
  }

  .next-nav__menu>li>.menu-link {
    width: 100%;
    padding: 9px 48px 9px 0;
    font-size: 0.98rem;
    line-height: 1.25;
    border-radius: 0;
  }

  .mega-dropdown {
    position: static;
    transform: none;
    width: 100%;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
    /* Controlled by accordion JS */
  }

  .next-nav__menu>li.is-open .mega-dropdown {
    display: block;
  }

  .mega-dropdown__inner {
    padding: 0 0 8px 10px;
    max-width: 100%;
  }

  .mega-dropdown__grid {
    grid-auto-flow: row;
    grid-template-rows: none;
    grid-auto-columns: auto;
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .mega-dropdown__grid .menu-link {
    gap: 6px;
    padding: 2px 0;
  }

  .mega-dropdown__grid>li:nth-child(n + 15) {
    display: list-item;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
    position: absolute;
    right: 0;
    top: 0;
    width: 52px;
    height: 52px;
    background: transparent;
    border: 0;
    cursor: pointer;
    z-index: 10;
    transition: background-color 0.2s;
  }

  .menu-toggle:active {
    background-color: rgba(0, 0, 0, 0.05);
  }

  .menu-toggle::after {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--header-primary);
    border-bottom: 2px solid var(--header-primary);
    transform: rotate(45deg);
    transition: var(--transition-fast);
    margin-right: 4px;
    /* Slightly nudge to the left */
  }

  .is-open>.menu-toggle::after {
    transform: rotate(-135deg) translateY(-2px);
  }
}

@media (min-width: 1025px) {
  .next-nav {
    position: relative;
  }

  .next-nav__menu>li {
    position: static;
  }

  .menu-toggle {
    display: none;
  }
}

/* Animations */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mega-dropdown__grid>li {
  animation: slideUp 400ms cubic-bezier(0.15, 0.3, 0.25, 1) backwards;
}

.mega-dropdown__grid>li:nth-child(1) {
  animation-delay: 50ms;
}

.mega-dropdown__grid>li:nth-child(2) {
  animation-delay: 100ms;
}

.mega-dropdown__grid>li:nth-child(3) {
  animation-delay: 150ms;
}

.mega-dropdown__grid>li:nth-child(4) {
  animation-delay: 200ms;
}

.mega-dropdown__grid>li:nth-child(5) {
  animation-delay: 250ms;
}