.site-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
  height: var(--site-header-height, 48px);
  padding: 0 0.75rem 0 0.65rem;
  background: #f6f8fa;
  border-bottom: 1px solid var(--color-border);
  z-index: 120;
}

.site-logo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  margin: 0;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.site-logo-button:hover {
  background: rgba(9, 105, 218, 0.08);
}

.site-logo-button:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-logo-img {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: contain;
}

.site-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
}
