.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 72px;
  padding-block: var(--space-2);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text-primary);
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-block;
  padding: var(--space-2) 0;
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header__nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-gold);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-header__reserve {
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  padding: 0;
  background-color: transparent;
  border: none;
  border-radius: var(--radius-2);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.site-header__toggle:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .site-header__nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    display: none;
    background-color: var(--glass-bg-mobile);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-3);
    box-shadow: var(--shadow-soft);
    padding: var(--space-3);
    max-height: calc(100vh - 100px);
    overflow-y: auto;
  }

  .site-header__nav.is-open {
    display: block;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .site-header__nav-link {
    display: block;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-2);
  }

  .site-header__nav-link::after {
    display: none;
  }

  .site-header__nav-link:hover,
  .site-header__nav-link:focus-visible {
    background-color: rgba(197, 160, 89, 0.1);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__reserve {
    display: none;
  }

  .site-header__actions {
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .site-header__inner {
    min-height: 64px;
    gap: var(--space-3);
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }

  .site-header__wordmark {
    display: none;
  }

  .site-header__nav {
    max-height: calc(100vh - 80px);
  }
}