.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: var(--bg-secondary);
  background-image: none;
  background-size: auto;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 2px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
  direction: ltr; 
  display: flex;
  flex-direction: column;
  min-width: 0;
}


.main-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  height: var(--header-height);
  padding: 0 var(--header-inline-padding);
  gap: var(--header-nav-gap);
  min-width: 0;
}

.main-nav > * {
  min-width: 0;
}

.nav-logo {
  position: static;
  left: auto;
  transform: translateY(calc(var(--header-top-trim) * -1));
  pointer-events: auto;
  user-select: none;
  top: auto;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: clamp(4px, 1vw, 18px);
}

.nav-logo__text {
  font-size: var(--nav-logo-font-size);
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: 1px;
  line-height: 1;
  white-space: nowrap;
}

.nav-logo__accent {
  color: var(--color-primary);
}


.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--nav-item-size);
  height: var(--nav-item-size);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  flex-shrink: 0;
}

:root:not([data-theme="light"]) .nav-item {
  color: var(--text-main);
}

.nav-item:hover {
  background-color: var(--surface-hover);
  color: var(--link-color);
  box-shadow: var(--shadow-sm);
}

.nav-item.active {
  color: var(--link-color);
  background-color: var(--surface-hover);
  box-shadow: var(--shadow-glow);
}


.nav-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  background-color: var(--color-danger);
  color: var(--text-inverse);
  font-size: 0.6rem;
  font-weight: 700;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}


body {
  padding-top: var(--total-header);
}