/* ==========================================================================
   Kickoff Abroad — Header & Navigation Component
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(17, 24, 39, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background: rgba(17, 24, 39, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: var(--header-height);
}

/* --------------------------------------------------------------------------
   2. Logo
   -------------------------------------------------------------------------- */
.site-logo {
  flex-shrink: 0;
  z-index: 1001;
}

.site-logo a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.site-logo a:hover {
  opacity: 0.85;
}

.site-logo img,
.custom-logo {
  max-height: 48px;
  width: auto;
  transition: all var(--transition-base);
}

.site-header.scrolled .site-logo img,
.site-header.scrolled .custom-logo {
  max-height: 40px;
}

.site-logo .site-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 780;
  letter-spacing: 0;
  color: var(--color-white);
  white-space: nowrap;
}

.site-logo .site-title .highlight {
  color: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   3. Navigation
   -------------------------------------------------------------------------- */
.site-nav {
  display: flex;
  align-items: center;
}

.site-nav .menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav .menu-item {
  position: relative;
}

.site-nav .menu-item a {
  display: block;
  padding: 0.5rem 1rem;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.site-nav .menu-item a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--color-secondary);
  border-radius: var(--radius-md);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.site-nav .menu-item a:hover,
.site-nav .menu-item.current-menu-item a,
.site-nav .menu-item.current_page_item a {
  color: var(--color-white);
}

.site-nav .menu-item a:hover::after,
.site-nav .menu-item.current-menu-item a::after,
.site-nav .menu-item.current_page_item a::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* --------------------------------------------------------------------------
   4. Header CTA Button
   -------------------------------------------------------------------------- */
.header-cta {
  margin-left: 1.5rem;
}

.header-cta .btn {
  padding: 0.625rem 1.5rem;
  font-size: var(--font-size-sm);
  background: var(--color-secondary);
  color: var(--color-dark);
  border: none;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.header-cta .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(212, 168, 67, 0.4);
}

/* --------------------------------------------------------------------------
   5. Mobile Menu Toggle
   -------------------------------------------------------------------------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  position: absolute;
}

.nav-toggle span:nth-child(1) {
  transform: translateY(-7px);
}

.nav-toggle span:nth-child(2) {
  transform: translateY(0);
}

.nav-toggle span:nth-child(3) {
  transform: translateY(7px);
}

/* Active hamburger → X */
.nav-toggle.active span:nth-child(1) {
  transform: translateY(0) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(10px);
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(0) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   6. Mobile Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .nav-toggle {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary-dark) 100%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 999;
  }

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

  .site-nav .menu {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .site-nav .menu-item a {
    font-size: var(--font-size-2xl);
    padding: 1rem 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition:
      color var(--transition-base),
      opacity 0.4s ease,
      transform 0.4s ease;
  }

  .site-nav.is-open .menu-item a {
    opacity: 1;
    transform: translateY(0);
  }

  /* Staggered entrance for mobile menu items */
  .site-nav.is-open .menu-item:nth-child(1) a { transition-delay: 0.1s; }
  .site-nav.is-open .menu-item:nth-child(2) a { transition-delay: 0.15s; }
  .site-nav.is-open .menu-item:nth-child(3) a { transition-delay: 0.2s; }
  .site-nav.is-open .menu-item:nth-child(4) a { transition-delay: 0.25s; }
  .site-nav.is-open .menu-item:nth-child(5) a { transition-delay: 0.3s; }
  .site-nav.is-open .menu-item:nth-child(6) a { transition-delay: 0.35s; }

  .site-nav .menu-item a::after {
    bottom: 0.5rem;
    left: 2rem;
    right: 2rem;
  }

  /* Mobile CTA in nav */
  .site-nav .mobile-cta {
    margin-top: var(--space-md);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease 0.4s, transform 0.4s ease 0.4s;
  }

  .site-nav.is-open .mobile-cta {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 767px) {
  .header-inner {
    padding: 0 1rem;
  }

  .site-logo .site-title {
    font-size: var(--font-size-lg);
  }
}