.option-content {
  background-color: var(--popup-color);
  box-sizing: border-box;
  line-height: 1.5;
}

.option-content.hidden {
  display: none;
  padding: 0;
}

.reader-setting {
  display: flex;
  align-items: flex-start; 
  gap: 10px; 
  flex-wrap: wrap; 
  margin-bottom: 10px;
}

.reader-setting label {
  font-size: 0.95rem;
  color: var(--popup-color);
  font-weight: 400;
  padding-top: 8px; 
  flex-basis: 100px; 
  flex-grow: 0; 
  flex-shrink: 0;
  line-height: 1.3; 
}

.select-with-button {
    display: flex;
    align-items: center; 
    gap: 8px; 
    flex-grow: 1; 
    flex-basis: 150px; 
}

.reader-select {
  background: var(--popup-color);
  color: var(--popup-color);
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 8px 10px;
  font-size: 0.95rem;
  cursor: pointer;
  flex-grow: 1; 
  box-sizing: border-box;
  height: 38px; 
}

.reader-select:focus {
  outline: 2px solid #007bff;
  outline-offset: 1px;
  border-color: #007bff;
}

.icon-button {
    background: none;
    border: 1px solid #ccc; 
    padding: 6px;
    margin: 0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px; 
    color: #0d264a;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    flex-shrink: 0; 
    height: 38px;
    width: 38px;
    box-sizing: border-box;
}

.icon-button svg {
    width: 20px; 
    height: 20px;
    display: block;
    stroke: currentColor;
    stroke-width: 1.8;
    fill: none;
    color: var(--text-color);
}

.icon-button:hover {
    background-color: rgba(13, 38, 74, 0.05);
    border-color: #aaa; 
}

.icon-button:focus-visible {
    outline: 2px solid #007bff;
    outline-offset: 1px;
    border-color: #007bff;
}
.reader-select option{
  background-color: var(--popup-bg);
  color: var(--text-color);
}