.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-background) 82%, transparent);
  backdrop-filter: blur(10px);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--color-foreground);
}

.site-header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.language-switcher {
  text-decoration: none;
  font-weight: 500;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.5rem;
}

.language-switcher .fi {
  font-size: 1.35rem;
  border-radius: 3px;
  box-shadow: 0 0 0 1px var(--color-border);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-foreground);
  transition: border-color 150ms ease, color 150ms ease;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.site-footer {
  margin-top: auto;
  padding: 1.5rem;
  text-align: center;
  color: var(--color-foreground);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
}

@media (max-width: 480px) {
  .site-header {
    padding: 0.75rem 1rem;
  }

  .brand {
    font-size: 1.05rem;
  }

  .site-header-controls {
    gap: 0.5rem;
  }
}