/* ============================================================
   THE ADVISORY — Navigation System
   CAA-inspired deep hierarchy with hover reveals (desktop)
   click reveals (mobile), with sticky behavior
   ============================================================ */

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: 72px;
  display: flex;
  align-items: center;
  transition: background-color var(--duration-base) var(--ease-smooth),
              border-color var(--duration-base) var(--ease-smooth),
              backdrop-filter var(--duration-base) var(--ease-smooth);
}

.site-header.scrolled {
  background-color: rgba(13, 13, 13, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
}

.site-header.scrolled-light {
  background-color: rgba(245, 243, 239, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1600px;
  width: 100%;
  gap: 1.5rem;
  padding-left: clamp(1.5rem, 2vw, 2.5rem);
  padding-right: clamp(1.5rem, 2vw, 2.5rem);
}

/* Logo (far left) · nav + CTA (center) · law firm link (far right) */
.header-center {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-width: 0;
  gap: 0.25rem;
}

/* ============================================================
   LOGO
   ============================================================ */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  z-index: calc(var(--z-nav) + 1);
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.logo-name {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ivory);
  line-height: 1.1;
  transition: color var(--duration-base) var(--ease-smooth);
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1.2;
}

.site-header.light-header .logo-name {
  color: var(--body-text);
}

/* ============================================================
   PRIMARY NAVIGATION (Desktop)
   ============================================================ */
.primary-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 0 1 auto;
}

.primary-nav > ul {
  display: flex;
  align-items: center;
}

/* Level 1 items */
.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0 1.25rem;
  height: 72px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(250, 248, 245, 0.75);
  transition: color var(--duration-base) var(--ease-smooth);
  white-space: nowrap;
}

.nav-link:hover,
.nav-item.active > .nav-link {
  color: var(--ivory);
}

.nav-link .chevron {
  width: 12px;
  height: 12px;
  opacity: 0.5;
  transition: transform var(--duration-base) var(--ease-smooth),
              opacity var(--duration-base) var(--ease-smooth);
}

.nav-item:hover .nav-link .chevron,
.nav-item.active > .nav-link .chevron {
  transform: rotate(180deg);
  opacity: 1;
}

/* Hover underline */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 16px;
  left: 1.25rem;
  right: 1.25rem;
  height: 1px;
  background-color: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-base) var(--ease-smooth);
}

.nav-link:hover::after,
.nav-item.active > .nav-link::after {
  transform: scaleX(1);
}

/* Light header nav */
.site-header.light-header .nav-link {
  color: rgba(44, 44, 44, 0.65);
}
.site-header.light-header .nav-link:hover,
.site-header.light-header .nav-item.active > .nav-link {
  color: var(--body-text);
}

/* ============================================================
   DROPDOWN MENUS (Level 2)
   ============================================================ */
.dropdown {
  position: absolute;
  top: calc(72px - 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background-color: var(--surface-dark-2);
  border: 1px solid var(--border-dark);
  border-top: 1px solid var(--gold);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-smooth),
              transform var(--duration-base) var(--ease-smooth),
              visibility var(--duration-base) var(--ease-smooth);
  z-index: var(--z-overlay);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Dropdown items */
.dropdown-item {
  position: relative;
}

.dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--stone);
  transition: color var(--duration-fast) var(--ease-smooth),
              background-color var(--duration-fast) var(--ease-smooth),
              padding-left var(--duration-fast) var(--ease-smooth);
  white-space: nowrap;
}

.dropdown-link:hover {
  color: var(--ivory);
  padding-left: 1.625rem;
}

.dropdown-link .sub-chevron {
  width: 10px;
  height: 10px;
  opacity: 0.4;
  transform: rotate(-90deg);
  flex-shrink: 0;
}

/* Level 3 dropdown (sub-dropdown) */
.sub-dropdown {
  position: absolute;
  top: -0.75rem;
  left: calc(100% - 2px);
  min-width: 200px;
  background-color: var(--surface-dark-2);
  border: 1px solid var(--border-dark);
  border-left: 1px solid var(--gold);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-smooth),
              visibility var(--duration-base) var(--ease-smooth);
  z-index: var(--z-overlay);
}

.dropdown-item:hover .sub-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ============================================================
   HEADER CTA
   ============================================================ */
.header-cta {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-cta .btn {
  padding: 0.6rem 1.4rem;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.header-cta-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(250, 248, 245, 0.82);
  white-space: nowrap;
  padding: 0.55rem 1.15rem;
  border: 1px solid rgba(184, 150, 90, 0.45);
  background-color: rgba(184, 150, 90, 0.08);
  transition: color var(--duration-base) var(--ease-smooth),
              border-color var(--duration-base) var(--ease-smooth),
              background-color var(--duration-base) var(--ease-smooth);
  flex-shrink: 0;
  margin-left: 0;
}

.header-cta-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  background-color: rgba(184, 150, 90, 0.14);
}

.site-header.light-header .header-cta-link {
  color: rgba(44, 44, 44, 0.82);
  border-color: rgba(184, 150, 90, 0.5);
  background-color: rgba(184, 150, 90, 0.06);
}

.site-header.light-header .header-cta-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  background-color: rgba(184, 150, 90, 0.12);
}

/* ============================================================
   MOBILE MENU TOGGLE
   ============================================================ */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  z-index: calc(var(--z-nav) + 2);
  background: transparent;
  border: none;
  padding: 0;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--ivory);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-smooth),
              opacity var(--duration-base) var(--ease-smooth);
  transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ============================================================
   MOBILE NAVIGATION PANEL
   ============================================================ */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100vw);
  background-color: var(--near-black);
  border-left: 1px solid var(--border-dark);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  z-index: var(--z-overlay);
  overflow-y: auto;
  padding: 100px var(--space-4) var(--space-5);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.5);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-smooth),
              visibility var(--duration-base) var(--ease-smooth);
}

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

/* Mobile nav items */
.mobile-nav-item {
  border-bottom: 1px solid var(--border-dark);
}

.mobile-nav-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ivory);
  text-align: left;
  letter-spacing: 0.02em;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--duration-base) var(--ease-smooth);
}

.mobile-nav-trigger a {
  flex: 1;
  color: inherit;
  text-decoration: none;
}

.mobile-nav-trigger:hover {
  color: var(--gold);
}

.mobile-nav-trigger .m-chevron {
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: transform var(--duration-base) var(--ease-smooth),
              color var(--duration-base) var(--ease-smooth);
  flex-shrink: 0;
}

.mobile-nav-trigger.open .m-chevron {
  transform: rotate(180deg);
  color: var(--gold);
}

.mobile-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-smooth);
}

.mobile-submenu.open {
  max-height: 600px;
}

.mobile-submenu-link {
  display: block;
  padding: 0.75rem 0 0.75rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--stone);
  transition: color var(--duration-base) var(--ease-smooth),
              padding-left var(--duration-base) var(--ease-smooth);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.mobile-submenu-link:last-child {
  border-bottom: none;
}

.mobile-submenu-link:hover {
  color: var(--gold);
  padding-left: 1.625rem;
}

.mobile-nav-cta {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.mobile-nav-cta .btn {
  width: 100%;
  justify-content: center;
  padding: 1rem;
}

/* ============================================================
   PAGE HEADER SPACER
   ============================================================ */
.header-spacer {
  height: 72px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  .primary-nav {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  .header-center .header-cta,
  .header-cta-link {
    display: none;
  }
}