/* Фиксированная шапка и навигация */

.site-header {
  position: fixed;
  right: 0;
  left: 0;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(246, 244, 238, 0.07);
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(16px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-100%);
  transition:
    opacity 220ms ease,
    transform 220ms ease;
}

body.header-visible .site-header {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  min-height: 68px;
  align-items: center;
  gap: 24px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 22px;
  color: var(--muted);
  font-size: 13px;
}

.site-nav a:hover {
  color: var(--accent);
}