:root {
    --primary-button-color: #007bff;
    --primary-button-hover: #0056b3;
    --quiz-correct-color: #4CAF50;
    --quiz-incorrect-color: #D32F2F;
}

.svg-tooltip {
    position: absolute;
    background: #333;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
    display: none;
}

.sidebar {
    position: fixed;
    right: 0;
    top: 10px;
    width: 20%;
    height: 75%;
    background: #f8f8f8;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 50px 15px 15px 15px;
    margin: 3rem;
    z-index: 900;
    overflow-y: auto;
}

.sidebar-content h3 {
    margin: 0;
    font-size: 18px;
    color: #333;
}

.sidebar-content p {
    margin-top: 10px;
    font-size: 14px;
    color: #666;
}

.sidebar-entry {
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
}

.sidebar-entry p {
    margin: 0;
    font-size: 14px;
    color: #666;
}

.sidebar-entry.active {
    background: #e0f7fa;
    border-color: var(--primary-button-color);
}

.sidebar-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-button-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 5px 8px;
    font-size: 14px;
    cursor: pointer;
    z-index: 910;
}

.sidebar-toggle:hover {
    background: var(--primary-button-hover);
}

.picture-container {
    position: relative;
    width: 50%;
    margin-left: 150px;
    margin-top: 50px;
}

.picture-container svg {
    width: 120%;
    height: auto;
    display: block;
    max-width: 150%;
}

.mode-toggle {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary-button-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 5px 8px;
    font-size: 14px;
    cursor: pointer;
    z-index: 910;
}

.mode-toggle:hover {
    background: var(--primary-button-hover);
}

.quiz-upper {
    margin-bottom: 20px;
    border-bottom: 1px solid #ccc;
    padding-bottom: 10px;
}

.quiz-word {
    display: inline-block;
    margin: 5px;
    padding: 5px 10px;
    background: #e0e0e0;
    border-radius: 4px;
    cursor: pointer;
}

.quiz-word.active-word {
    background: var(--primary-button-color);
    color: #fff;
}

.quiz-lower {
    padding-top: 10px;
}

.color-toggle {
    transition: fill 0.3s ease, fill-opacity 0.3s ease;
}

body:not(.color-mode-on) .color-toggle {
    fill: slategray !important;
    fill-opacity: 0.05 !important;
}

body.quiz-mode .color-toggle.correct {
    fill: var(--quiz-correct-color) !important;
    fill-opacity: 0.3 !important;
}

body.quiz-mode .color-toggle.incorrect {
    fill: var(--quiz-incorrect-color) !important;
    fill-opacity: 0.3 !important;
}