.stt-preview-container {
    border: 1px solid #ddd;
    padding: 20px;
    margin-top: 20px;
    border-radius: 4px;
    background: #f9f9f9;
}

.stt-preview-box {
    position: relative;
    height: 200px;
    overflow-y: auto;
    border: 1px solid #ccc;
    background: #fff;
    padding: 15px;
    font-size: 14px;
}

.stt-preview-content p {
    margin-bottom: 10px;
}

.scroll-to-top-button {
    position: fixed;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-to-top-button.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top-button.stt-style-circle {
    border-radius: 50%;
}

.scroll-to-top-button.stt-style-arrow,
.scroll-to-top-button.stt-style-text {
    border-radius: 4px;
}

.scroll-to-top-button.stt-size-small {
    width: 40px;
    height: 40px;
    font-size: 16px;
}

.scroll-to-top-button.stt-size-medium {
    width: 50px;
    height: 50px;
    font-size: 20px;
}

.scroll-to-top-button.stt-size-large {
    width: 60px;
    height: 60px;
    font-size: 24px;
}

.scroll-to-top-button.stt-position-bottom-right {
    right: 20px;
    bottom: 20px;
}

.scroll-to-top-button.stt-position-bottom-left {
    left: 20px;
    bottom: 20px;
}

.stt-button-content {
    pointer-events: none;
}

.stt-style-circle .stt-button-content::before {
    content: '↑';
}

.stt-style-arrow .stt-button-content::before {
    content: '↑';
}

.stt-style-text .stt-button-content::before {
    content: 'Top';
    font-weight: bold;
}

.color-picker {
    width: 70px;
    height: 35px;
}