.tts-custom-select {
    width: 170px;
    max-width: min(170px, 42vw);
    min-width: 0;
    height: 36px;
    position: relative;
}

.tts-custom-select-button {
    align-items: center;
    background: transparent;
    border: 0;
    color: var(--reader-text);
    cursor: pointer;
    display: flex;
    font: inherit;
    font-size: 13px;
    font-weight: 600;
    height: 36px;
    line-height: 36px;
    margin: 0;
    max-width: 100%;
    min-width: 0;
    outline: none;
    padding: 0 24px 0 0;
    text-align: left;
    width: 100%;
}

.tts-custom-select-button::after {
    content: '▼';
    font-size: 8px;
    position: absolute;
    right: 4px;
    pointer-events: none;
    color: currentColor;
    opacity: 0.5;
}

.tts-custom-select-button:focus-visible {
    border-radius: 10px;
    outline: 2px solid rgba(139, 92, 246, 0.35);
    outline-offset: 2px;
}

.tts-custom-select-label {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
}

.tts-custom-select-menu {
    -webkit-overflow-scrolling: touch;
    background: var(--reader-paper);
    border: 1px solid var(--reader-line);
    border-radius: 14px;
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5), 0 0 40px rgba(var(--reader-text-rgb), 0.05);
    color: var(--reader-text);
    contain: layout paint style;
    font-size: 13px;
    max-height: min(360px, calc(100vh - 24px));
    overscroll-behavior: contain;
    overflow-y: auto;
    padding: 6px;
    position: fixed;
    z-index: 100000;
}

.tts-custom-select-group {
    border-top: 1px solid var(--reader-line);
    color: var(--reader-muted);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-top: 6px;
    padding: 8px 10px 5px;
    text-transform: uppercase;
}

.tts-custom-select-group:first-child {
    border-top: 0;
    margin-top: 0;
}

.tts-custom-select-option {
    align-items: center;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    display: flex;
    font: inherit;
    font-size: 13px;
    gap: 10px;
    justify-content: space-between;
    min-height: 34px;
    padding: 8px 10px;
    white-space: nowrap;
    width: 100%;
    text-align: left;
}

.tts-custom-select-option:hover,
.tts-custom-select-option.is-selected {
    background: rgba(var(--reader-text-rgb), 0.08);
    color: var(--reader-accent-strong, #8b5cf6);
}

.tts-custom-select-option.is-disabled {
    color: #6b7280;
    cursor: not-allowed;
}

.tts-custom-select-option.is-locked::after {
    background: rgba(var(--reader-text-rgb), 0.1);
    border-radius: 999px;
    color: var(--reader-muted);
    content: attr(data-badge);
    flex: 0 0 auto;
    font-size: 10px;
    font-weight: 700;
    line-height: 1;
    padding: 4px 7px;
}

.tts-custom-select-option.is-disabled:hover {
    background: transparent;
    color: #6b7280;
}