.tool-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 8px 10px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 10px;
  white-space: nowrap;
  overflow-x: auto;
}

.tool-header h1 {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  flex: 0 0 auto;
}

.tool-header .header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: nowrap;
  margin-left: auto;
  flex: 0 0 auto;
}

.tool-header button:not(.icon-btn),
.tool-header .button:not(.icon-btn),
.tool-header .tool-button {
  padding: var(--tool-button-padding-block) var(--tool-button-padding-inline);
  font-size: var(--tool-button-font-size);
  line-height: var(--tool-button-line-height);
}

.tool-header .file-input-split-trigger .file-input-trigger {
  padding-right: 10px;
}