.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(10, 14, 23, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 64px;
  gap: var(--space-sm);
}

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

.site-header__nav--left {
  justify-content: flex-start;
}

.site-header__nav--right {
  justify-content: flex-end;
}

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

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

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: 0 var(--space-2xs);
  color: var(--color-silver-white);
  font-size: var(--text-body-size);
  font-weight: 400;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-violet);
  text-decoration: none;
}

.site-header__nav-link:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-glow);
  border-radius: var(--radius-sm);
}

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

.site-header__brand:hover {
  color: var(--color-silver-white);
  text-decoration: none;
}

.site-header__brand:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-glow);
  border-radius: var(--radius-sm);
}

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

.site-header__brand-text {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  grid-column: 3;
  justify-self: end;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: rgba(230, 234, 242, 0.05);
}

.site-header__toggle:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-glow);
}

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

.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);
}

.site-header__mobile-nav {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 14, 23, 0.98);
  z-index: 999;
  overflow-y: auto;
  padding: var(--space-lg) var(--container-padding-mobile);
  display: none;
  height:100%;
  min-height: 650px;
}

.site-header__mobile-nav[hidden] {
  display: none !important;
}

.site-header__mobile-nav:not([hidden]) {
  display: block;
}

.site-header__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.site-header__mobile-link {
  display: flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: var(--space-2xs) var(--space-sm);
  color: var(--color-silver-white);
  font-size: var(--text-body-large-size);
  font-weight: 400;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-header__mobile-link:hover {
  background-color: rgba(230, 234, 242, 0.05);
  color: var(--color-violet);
  text-decoration: none;
}

.site-header__mobile-link:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-glow);
}

@media (max-width: 1023px) {
  .site-header__nav {
    display: none;
  }

  .site-header__inner {
    grid-template-columns: 1fr auto auto;
  }

  .site-header__brand {
    grid-column: 2;
    justify-self: center;
  }

  .site-header__toggle {
    display: inline-flex;
    grid-column: 3;
    justify-self: end;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__mobile-nav {
    display: none !important;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    padding-inline: var(--container-padding-mobile);
  }

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

  .site-header__brand-text {
    font-size: 18px;
  }

  .site-header__mobile-nav {
    top: 56px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .site-header__inner {
    padding-inline: var(--container-padding-tablet);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-icon,
  .site-header__toggle-icon::before,
  .site-header__toggle-icon::after {
    transition: none;
  }
}