/* ============================================================
   NAVIGATION
   ============================================================ */

/* ---- Logo header bar (above nav, hides on scroll) ---- */
#logo-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--logo-bar-h);
  background: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  transition: transform 0.35s ease;
}

#logo-header.is-hidden {
  transform: translateY(-100%);
}

.logo-header__link {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.06em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.logo-header__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

/* ---- Main nav ---- */
.nav {
  position: fixed;
  top: var(--logo-bar-h);
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: transparent;
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: top 0.35s ease, background 0.35s ease, backdrop-filter 0.35s ease;
  backdrop-filter: blur(0px);
}

/* When at top: translucent with subtle blur */
.nav.at-top {
  background: rgba(30, 42, 58, 0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* When scrolled: logo header gone, nav snaps to top and goes solid */
.nav.is-scrolled {
  top: 0;
  background: var(--color-navy);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Nav-internal logo (visible when scrolled) ---- */
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.nav.is-scrolled .nav__logo {
  opacity: 1;
  pointer-events: auto;
}

.nav__logo-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ---- Links ---- */
.nav__links {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.nav__link {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  position: relative;
  transition: color var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: #fff;
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
}

/* ---- Donate link ---- */
.nav__link--donate {
  background: var(--color-gold);
  color: var(--color-navy);
  font-weight: 600;
  padding: 0.3rem 0.875rem;
  margin-left: 0.25rem;
  transition: background var(--transition), color var(--transition);
}

.nav__link--donate:hover {
  background: var(--color-gold-light);
  color: var(--color-navy);
}

.nav__link--donate::after {
  display: none;
}

/* ---- Coming soon links ---- */
.nav__link--soon {
  opacity: 0.35;
  pointer-events: none;
  font-style: italic;
}

/* ---- About Us dropdown ---- */
.nav__item {
  position: relative;
}

.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown.is-open .nav__dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--color-navy-dark);
  min-width: 200px;
  border-top: 2px solid var(--color-gold);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1010;
}

.nav__dropdown::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
}

.nav__dropdown-link {
  display: block;
  padding: 0.625rem 1.125rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--transition), background var(--transition);
}

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

.nav__dropdown-link:hover {
  color: var(--color-gold);
  background: rgba(255,255,255,0.04);
}

/* ---- Hamburger ---- */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transition);
}

/* ---- Mobile menu ---- */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-navy-dark);
  padding: 1.5rem 2rem;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 999;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.nav__mobile.is-open {
  display: flex;
}

.nav.is-scrolled ~ .nav__mobile {
  top: var(--nav-height);
}

.nav__mobile .nav__link {
  font-size: 1.0625rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav__mobile .nav__link::after {
  display: none;
}

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

.nav__mobile-section {
  padding: 0.375rem 0 0.25rem;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-top: 0.5rem;
}

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

  .nav__hamburger {
    display: flex;
  }
}