.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  padding-inline: var(--space-4);
  max-width: var(--container-xl);
  margin-inline: auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.site-logo-icon { width: 2rem; height: 2rem; border-radius: var(--radius-md); object-fit: cover; display: block; }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
  position: relative;
}

.site-nav-link:hover { color: var(--color-text-primary); }

.site-nav-link.active { color: var(--color-brand-400); }

.site-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1.25rem;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-brand-500);
  border-radius: var(--radius-full);
}

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

.site-lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.site-lang-toggle:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

.site-mobile-toggle {
  display: none;
  padding: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-mobile-toggle { display: flex; }
  .site-nav.mobile-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
  }
  .site-nav-link.active::after { display: none; }
}

.site-dash-dropdown{position:relative;display:inline-block}
.site-dash-trigger{display:inline-flex;align-items:center;gap:6px}
.site-dash-caret{font-size:10px;transition:transform 0.2s ease;line-height:1}
.site-dash-dropdown.open .site-dash-caret{transform:rotate(180deg)}
.site-dash-menu{position:absolute;top:calc(100% + 8px);inset-inline-end:0;min-width:200px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:6px;display:none;z-index:100}
.site-dash-dropdown.open .site-dash-menu{display:block;animation:siteDashFade 0.15s ease}
@keyframes siteDashFade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.site-dash-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);color:var(--color-text-primary);text-decoration:none;font-size:14px;font-weight:500;transition:background 0.15s ease}
.site-dash-item:hover{background:var(--color-surface-hover);color:var(--color-text-primary)}
.site-dash-icon{font-size:18px;line-height:1}

.site-beta-badge { display: inline-flex; align-items: center; padding: 2px 6px; margin-inline-start: 4px; font-size: 9px; font-weight: 700; letter-spacing: 0.5px; color: var(--color-bg-primary); background: var(--color-warning-400); border-radius: 4px; line-height: 1; text-transform: uppercase; vertical-align: super; position: relative; top: -8px; }

.site-install-btn[hidden] { display: none !important; }
@media (max-width: 768px) { .site-install-text { display: none; } }