.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
  padding-block: var(--space-2);
}

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

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border: none;
  border-radius: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: var(--text-body);
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.site-header__close {
  display: none;
}

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

.site-header__nav-list li {
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: inline-block;
  padding-block: var(--space-2);
  text-decoration: none;
  color: var(--color-ink);
  font-size: var(--text-small);
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--transition-color);
}

.site-header__nav-list a:hover {
  color: var(--color-gold-dark);
}

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

.site-header__cta {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-gold);
  color: var(--color-ink);
  border-radius: var(--radius-small);
  text-decoration: none;
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: background-color var(--transition-color), color var(--transition-color);
}

.site-header__cta:hover {
  background-color: var(--color-gold-dark);
  color: var(--color-background);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: background-color var(--transition-color);
}

.site-header__toggle:hover {
  background-color: var(--color-surface-muted);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.site-header__toggle-icon,
.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
  transition: transform var(--transition-transform), opacity var(--transition-color);
}

.site-header__toggle-icon {
  position: relative;
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.site-header__toggle-icon::before {
  top: -8px;
}

.site-header__toggle-icon::after {
  top: 8px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
  background-color: transparent;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
  transform: translateY(8px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .site-header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 80vw);
    background-color: var(--color-background);
    box-shadow: var(--shadow-soft);
    transform: translateX(100%);
    transition: transform var(--transition-transform);
    z-index: 1001;
    overflow-y: auto;
    padding: var(--space-6) var(--space-4);
    flex-direction: column;
    align-items: stretch;
  }

  .site-header__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-end;
    width: 44px;
    height: 44px;
    margin: -8px -8px var(--space-4) 0;
    padding: 0;
    color: var(--color-ink);
    background: transparent;
    border: 0;
    border-radius: var(--radius-small);
    cursor: pointer;
  }

  .site-header__close:hover {
    background-color: var(--color-surface-muted);
  }

  .site-header__close:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
  }

  .site-header__close-icon,
  .site-header__close-icon::before {
    display: block;
    width: 22px;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
  }

  .site-header__close-icon {
    position: relative;
    transform: rotate(45deg);
  }

  .site-header__close-icon::before {
    content: "";
    position: absolute;
    transform: rotate(90deg);
  }

  .site-header__nav[data-open="true"] {
    transform: translateX(0);
  }

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

  .site-header__nav-list a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-body);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__cta {
    display: none;
  }
}

@media (min-width: 1024px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__close {
    display: none;
  }
}