/* ============================================
   HEADER - Fjord Horizon Design
   ============================================ */
.site-header {
  /* Not sticky: show at top of page, scrolls away with the document. */
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) var(--space-2xl);
  transition:
    background-color var(--duration-slow) var(--ease-out-quart),
    padding var(--duration-normal) var(--ease-out-quart),
    backdrop-filter var(--duration-slow) var(--ease-out-quart),
    box-shadow var(--duration-slow) var(--ease-out-quart);
}

/* Fjord horizon line - mountain silhouette SVG */
.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 16' preserveAspectRatio='none'%3E%3Cpath d='M0,16 L0,10 L40,8 L80,11 L120,6 L160,9 L200,4 L240,7 L300,3 L340,6 L400,2 L440,5 L500,1 L540,4 L600,2 L640,5 L700,0 L740,3 L800,1 L840,4 L900,2 L940,5 L1000,1 L1040,4 L1100,2 L1140,6 L1200,3 L1240,7 L1300,4 L1340,9 L1400,6 L1440,10 L1440,16 Z' fill='%238fb8ca' fill-opacity='0.25'/%3E%3Cpath d='M0,16 L0,12 L50,9 L100,12 L160,7 L210,10 L270,5 L320,8 L390,4 L440,7 L510,2 L560,5 L630,1 L680,4 L750,2 L800,5 L870,1 L920,4 L990,2 L1040,6 L1110,3 L1160,7 L1230,4 L1280,9 L1350,5 L1400,10 L1440,8 L1440,16 Z' fill='%237dd3c0' fill-opacity='0.35'/%3E%3Cpath d='M0,16 L0,13 L60,11 L120,13 L180,9 L240,12 L310,7 L370,10 L440,6 L500,9 L570,4 L630,7 L700,3 L760,6 L830,4 L890,7 L960,3 L1020,6 L1090,4 L1150,8 L1220,5 L1280,9 L1350,6 L1400,11 L1440,9 L1440,16 Z' fill='%23d4a574' fill-opacity='0.15'/%3E%3C/svg%3E");
  background-size: 100% 100%;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity var(--duration-slow) var(--ease-out-quart),
    transform var(--duration-slow) var(--ease-out-quart);
  pointer-events: none;
}

/* Scrolled state - frosted glass with horizon line */
.site-header.scrolled {
  padding: var(--space-md) var(--space-2xl);
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 4px 30px rgba(10, 22, 40, 0.08);
}

.site-header.scrolled::after {
  opacity: 1;
  transform: translateY(0);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

/* Logo - Fjord Horizon style with nordstjerne accent */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

/* Nordstjerne (North Star) accent - appears on hover */
.logo::before {
  content: '';
  position: absolute;
  top: -4px;
  right: -8px;
  width: 8px;
  height: 8px;
  background: var(--color-gold);
  border-radius: var(--radius-full);
  opacity: 0;
  transform: scale(0);
  box-shadow:
    0 0 8px var(--color-gold),
    0 0 16px rgba(196, 145, 138, 0.4);
  transition:
    opacity var(--duration-normal) var(--ease-out-expo),
    transform var(--duration-normal) var(--ease-out-expo);
}

@media (hover: hover) {
  .logo:hover::before {
    opacity: 1;
    transform: scale(1);
  }

  .logo:hover {
    transform: translateY(-2px);
  }
}

.logo img {
  height: 68px;
  width: auto;
  transition:
    height var(--duration-normal) var(--ease-out-quart),
    filter var(--duration-normal);
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.12));
}

.site-header.scrolled .logo img {
  height: 52px;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.08));
}

/* Navigation - Fjord Horizon: Clean text links with golden underline */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

/* Nav link - Simple, elegant text with golden underline on hover */
.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text-inverse);
  padding: var(--space-sm) 0;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: color var(--duration-normal) var(--ease-out-quart);
}

/* Gold dot separator between header nav items */
.main-nav > :not(:first-child)::before {
  content: '';
  position: absolute;
  left: calc(-0.5 * var(--space-xl));
  top: 50%;
  transform: translate(-50%, -50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(196, 145, 138, 0.45);
  pointer-events: none;
}

/* Golden underline - grows on hover */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), #ddbab4);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link:hover {
  color: var(--color-warm-white);
}

/* Scrolled state - dark text */
.site-header.scrolled .nav-link {
  color: var(--color-text-primary);
  text-shadow: none;
}

.site-header.scrolled .nav-link:hover {
  color: var(--color-midnight);
}

/* Active state - underline always visible */
.nav-link.active {
  font-weight: 600;
}

.nav-link.active::after {
  transform: scaleX(1);
}

/* Dropdown - Fjord Horizon style */
.nav-dropdown {
  position: relative;
}

.nav-dropdown__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text-inverse);
  cursor: pointer;
}

.dropdown-toggle svg {
  width: 12px;
  height: 12px;
  opacity: 0.7;
  transition:
    transform var(--duration-fast) var(--ease-out-quart),
    opacity var(--duration-fast);
}

.nav-dropdown:hover .dropdown-toggle svg {
  transform: rotate(180deg);
  opacity: 1;
}

.nav-dropdown.is-open .dropdown-toggle svg {
  transform: rotate(180deg);
  opacity: 1;
}

.site-header.scrolled .dropdown-toggle {
  color: var(--color-text-primary);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-md));
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  padding: var(--space-md);
  background: var(--color-warm-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-mist);
  box-shadow:
    0 10px 40px rgba(10, 22, 40, 0.12),
    0 2px 8px rgba(10, 22, 40, 0.06);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-out-quart),
    transform var(--duration-normal) var(--ease-out-quart),
    visibility var(--duration-normal);
}

/* Dropdown arrow/pointer */
.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: var(--color-warm-white);
  border-left: 1px solid var(--color-mist);
  border-top: 1px solid var(--color-mist);
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu,
.nav-dropdown.is-open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  position: relative;
  transition:
    background-color var(--duration-fast),
    color var(--duration-fast),
    padding-left var(--duration-fast);
}

.dropdown-menu a:hover {
  background-color: var(--color-cream);
  color: var(--color-pine);
  padding-left: var(--space-lg);
}

/* Gold accent on hover */
.dropdown-menu a::before {
  content: '';
  position: absolute;
  left: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-gold);
  border-radius: var(--radius-full);
  transition: height var(--duration-fast);
}

.dropdown-menu a:hover::before {
  height: 16px;
}

/* ============================================
   Guide Dropdown — Editorial mega-style
   ============================================ */
.dropdown-menu--guide {
  min-width: 280px;
  padding: var(--space-sm);
}

.dropdown-guide-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-md) !important;
  border-radius: var(--radius-md);
  transition:
    background-color var(--duration-fast),
    color var(--duration-fast);
}

.dropdown-guide-item:hover {
  background-color: var(--color-cream) !important;
  padding-left: var(--space-md) !important;
}

.dropdown-guide-item::before {
  display: none !important;
}

.dropdown-guide-item__number {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 300;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-gold);
  flex-shrink: 0;
  width: 32px;
  text-align: center;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.dropdown-guide-item:hover .dropdown-guide-item__number {
  transform: scale(1.12);
}

.dropdown-guide-item__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dropdown-guide-item__title {
  font-family: 'Glacial Indifference', -apple-system, sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: 0.01em;
}

.dropdown-guide-item__desc {
  font-family: 'Glacial Indifference', -apple-system, sans-serif;
  font-size: 0.75rem;
  color: var(--color-text-muted, #888);
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.dropdown-guide-item:hover .dropdown-guide-item__title {
  color: var(--color-pine);
}

/* Subtle separator between guide items */
.dropdown-guide-item + .dropdown-guide-item {
  border-top: 1px solid var(--color-mist);
}

/* Mobile overrides for guide dropdown */
@media (max-width: 768px) {
  .main-nav.is-open .dropdown-menu--guide {
    padding: 0 0 var(--space-md) var(--space-sm);
  }

  .main-nav.is-open .dropdown-guide-item {
    padding: var(--space-sm) 0 !important;
    gap: var(--space-sm);
    border-radius: 0;
  }

  .main-nav.is-open .dropdown-guide-item:hover {
    background: transparent !important;
  }

  .main-nav.is-open .dropdown-guide-item + .dropdown-guide-item {
    border-top: none;
  }

  .main-nav.is-open .dropdown-guide-item__number {
    font-size: 1.25rem;
    width: 28px;
    color: var(--color-gold);
  }

  .main-nav.is-open .dropdown-guide-item__title {
    color: rgba(250, 248, 245, 0.85);
    font-size: 1rem;
  }

  .main-nav.is-open .dropdown-guide-item__desc {
    color: rgba(250, 248, 245, 0.45);
    font-size: 0.75rem;
  }

  .main-nav.is-open .dropdown-guide-item:hover .dropdown-guide-item__title {
    color: rgba(250, 248, 245, 0.95);
  }
}

/* User Button - Fjord Horizon: Subtle, refined */
.user-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    color var(--duration-normal) var(--ease-out-quart),
    border-color var(--duration-normal) var(--ease-out-quart),
    background var(--duration-normal) var(--ease-out-quart),
    transform var(--duration-fast),
    box-shadow var(--duration-normal);
}

.user-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(196, 145, 138, 0.25);
}

.site-header.scrolled .user-btn {
  color: var(--color-midnight);
  border-color: var(--color-mist);
  background: var(--color-cream);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header.scrolled .user-btn:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-midnight);
  box-shadow: 0 4px 16px rgba(196, 145, 138, 0.35);
}

.user-btn svg {
  width: 20px;
  height: 20px;
}

/* Mobile Menu Toggle - Clean, minimal */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-header.scrolled .menu-toggle:hover {
  background: var(--color-cream);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-inverse);
  border-radius: var(--radius-full);
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    opacity var(--duration-normal),
    background-color var(--duration-normal);
}

.site-header.scrolled .menu-toggle span {
  background: var(--color-text-primary);
}

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

  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    min-height: calc(100dvh - 76px);
    background: rgba(10, 22, 40, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-2xl) var(--space-xl);
    gap: 0;
    z-index: 1001;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
  }

  /* Hide gold dot separators in mobile menu */
  .main-nav.is-open > :not(:first-child)::before {
    display: none;
  }

  .main-nav.is-open .nav-link,
  .main-nav.is-open .nav-dropdown__trigger {
    font-size: 1.125rem;
    padding: var(--space-md) 0;
    text-shadow: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .main-nav.is-open .nav-dropdown__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
  }

  .main-nav.is-open .nav-dropdown .nav-link {
    padding: 0;
    border-bottom: none;
  }

  .main-nav.is-open .dropdown-toggle {
    width: 32px;
    height: 32px;
    color: rgba(250, 248, 245, 0.85);
    border-radius: var(--radius-sm);
  }

  .main-nav.is-open .nav-link::after {
    display: none;
  }

  .main-nav.is-open .dropdown-toggle::after {
    display: none;
  }

  .main-nav.is-open .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0 0 var(--space-md) var(--space-lg);
    min-width: auto;
    display: none;
  }

  .main-nav.is-open .dropdown-menu::before {
    display: none;
  }

  .main-nav.is-open .nav-dropdown.is-open .dropdown-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .main-nav.is-open .dropdown-menu a {
    font-size: 1rem;
    padding: var(--space-sm) 0;
    color: rgba(250, 248, 245, 0.6);
    background: transparent;
  }

  .main-nav.is-open .dropdown-menu a:hover {
    color: rgba(250, 248, 245, 0.9);
    background: transparent;
    padding-left: 0;
  }

  .main-nav.is-open .dropdown-menu a::before {
    display: none;
  }

  .main-nav.is-open .dropdown-toggle svg {
    transition: transform 0.3s var(--ease-out-quart);
  }

  .main-nav.is-open .nav-dropdown.is-open .dropdown-toggle svg {
    transform: rotate(180deg);
  }

  .menu-toggle {
    display: flex;
  }

  /* Hamburger to X animation */
  .menu-toggle.is-open span {
    transition:
      transform var(--duration-normal) var(--ease-out-expo),
      opacity var(--duration-fast);
  }

  .menu-toggle.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}