/* ============================================
   Header & Navigation
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base), padding var(--transition-base);
  padding: var(--space-4) 0;
}

.header--scrolled {
  background: rgba(27, 42, 74, 0.97);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2) 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: var(--z-overlay);
}

.header__logo img {
  height: 48px;
  width: auto;
  transition: height var(--transition-base);
}

.header--scrolled .header__logo img {
  height: 40px;
}

/* The lockup is ~3.4:1 wide; keep it clear of the menu toggle on phones. */
@media (max-width: 575px) {
  .header__logo img {
    height: 40px;
  }
}

/* Desktop Navigation */
.nav {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
  }
}

.nav__link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover,
.nav__link--active {
  color: var(--gold);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 60%;
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__dropdown-toggle svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.nav__dropdown:hover .nav__dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
}

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

.nav__dropdown-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--gray-700);
  text-transform: none;
  letter-spacing: normal;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav__dropdown-link:hover {
  background: var(--off-white);
  color: var(--gold);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  /* 44x44 is the minimum comfortable touch target. The bars stay 32px wide
     via .menu-toggle__bar; only the hit area grows. */
  width: 44px;
  height: 44px;
  margin-right: -6px;
  z-index: var(--z-overlay);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle__bar {
  display: block;
  /* Fixed width so growing the button's hit area to 44px does not
     stretch the icon itself. */
  width: 28px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.menu-toggle--active .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle--active .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle--active .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--navy);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-20) var(--space-8);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

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

.mobile-menu__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  color: var(--white);
  text-align: center;
  transition: color var(--transition-fast);
}

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

.mobile-menu__dropdown {
  width: 100%;
  text-align: center;
}

.mobile-menu__dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: auto;
}

.mobile-menu__dropdown-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.mobile-menu__dropdown-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.mobile-menu__dropdown-menu {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: var(--space-2) 0;
}

.mobile-menu__dropdown-menu--open {
  display: flex;
}

.mobile-menu__sub-link {
  font-family: var(--font-body);
  font-size: var(--fs-md);
  color: var(--gray-400);
}

.mobile-menu__cta {
  margin-top: var(--space-8);
}

.mobile-menu__contact {
  margin-top: var(--space-6);
  text-align: center;
  color: var(--gray-400);
  font-size: var(--fs-sm);
}

.mobile-menu__contact a {
  color: var(--gold);
  display: block;
  margin-top: var(--space-2);
  font-size: var(--fs-md);
}