/* Header */
.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: var(--header-z);
  padding: 0;
  border-bottom: 1px solid transparent;
  background: var(--cream-14);
  backdrop-filter: var(--blur-header);
  transition:
    background var(--transition-header),
    border-color var(--transition-header),
    box-shadow var(--transition-header);
}

.menu-open {
  overflow: hidden;
}

.site-header.is-scrolled {
  border-color: var(--gold-border-18);
  background: var(--cream-scroll-82);
  box-shadow: var(--shadow-header);
  backdrop-filter: var(--blur-header-open);
}

.top-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  width: 100%;
  margin: 0 auto;
  padding: 0 clamp(28px, 7vw, 112px);
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  direction: rtl;
  overflow: visible;
  transition:
    min-height var(--transition-header),
    padding var(--transition-header);
}

.site-header.is-scrolled .top-nav {
  min-height: 64px;
  padding-inline: clamp(22px, 6vw, 96px);
}

.top-nav.is-open {
  border-color: var(--gold-border-24);
  background: var(--cream-98);
  box-shadow: var(--shadow-open-menu);
  backdrop-filter: var(--blur-header-open);
}

.brand-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: clamp(205px, 15vw, 270px);
  min-height: 82px;
  transition:
    width var(--transition-header),
    min-height var(--transition-header);
}

.brand-link::after {
  display: none;
}

.brand-link img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 112px;
  object-fit: contain;
  transform: translateY(16px);
  filter: var(--shadow-logo);
  transition:
    opacity var(--transition-logo-opacity),
    transform var(--transition-header),
    filter var(--transition-header);
}

.site-header.is-scrolled .brand-link {
  width: clamp(150px, 10.5vw, 210px);
  min-height: 58px;
}

.site-header.is-scrolled .brand-link::after {
  opacity: 0;
}

.site-header.is-scrolled .brand-link img {
  max-height: 62px;
  transform: translateY(2px);
  filter: var(--shadow-logo-small);
}

/* Navigation */
.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(22px, 3vw, 42px);
  min-width: 0;
}

.nav-menu .nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.4vw, 34px);
  flex: initial;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu .nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0;
  color: var(--cream-94);
  font-size: 16px;
  font-weight: 800;
  text-shadow: 0 2px 10px var(--text-dark-38);
  transition:
    color var(--transition-fast),
    text-shadow var(--transition-fast);
}

.nav-menu .nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 7px;
  width: 0;
  height: 2px;
  border-radius: var(--radius-round);
  background: var(--color-gold);
  transition: width var(--transition-fast);
}

.nav-menu .nav-links a:hover,
.nav-menu .nav-links a:focus-visible {
  color: var(--color-white);
}

.nav-menu .nav-links a:hover::after,
.nav-menu .nav-links a:focus-visible::after {
  width: 100%;
}

.nav-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 28px;
  border: 1px solid var(--gold-dark-42);
  border-radius: var(--radius-small);
  background: var(--cream-90);
  color: var(--color-text-dark);
  font-size: 16px;
  font-weight: 800;
  box-shadow: var(--shadow-button);
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.nav-action:hover,
.nav-action:focus-visible {
  background: var(--color-cream-light);
  box-shadow: var(--shadow-button-hover);
  transform: translateY(-1px);
}

.site-header.is-scrolled .nav-menu .nav-links a,
.top-nav.is-open .nav-menu .nav-links a {
  color: var(--text-dark-76);
  text-shadow: none;
}

.site-header.is-scrolled .nav-menu .nav-links a:hover,
.site-header.is-scrolled .nav-menu .nav-links a:focus-visible,
.top-nav.is-open .nav-menu .nav-links a:hover,
.top-nav.is-open .nav-menu .nav-links a:focus-visible {
  color: var(--color-text-dark);
}

.site-header.is-scrolled .nav-action,
.top-nav.is-open .nav-action {
  background: var(--gradient-gold-button);
  color: var(--color-cream-light);
}

.site-header.is-scrolled .nav-action:hover,
.site-header.is-scrolled .nav-action:focus-visible,
.top-nav.is-open .nav-action:hover,
.top-nav.is-open .nav-action:focus-visible {
  background: var(--gradient-gold-button-hover);
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--cream-42);
  border-radius: var(--radius-small);
  background: var(--cream-18);
  color: var(--color-cream-light);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.site-header.is-scrolled .menu-toggle,
.top-nav.is-open .menu-toggle {
  border-color: var(--white-08);
  background: var(--color-white);
  color: var(--color-text-dark);
}

.menu-toggle-lines {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle-lines span {
  width: 20px;
  height: 2px;
  border-radius: var(--radius-round);
  background: currentColor;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.top-nav.is-open .menu-toggle-lines span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.top-nav.is-open .menu-toggle-lines span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}