/* Interactive Code Editor Styles */
.code-editor-container {
    margin: 20px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f8f8f8;
}

.code-editor {
    width: 100%;
    min-height: 150px;
    padding: 10px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    border: none;
    border-bottom: 1px solid #ddd;
    background-color: #fff;
    resize: vertical;
}

.code-buttons {
    padding: 10px;
    background-color: #f0f0f0;
    display: flex;
    gap: 10px;
}

.code-output {
    padding: 10px;
    background-color: #fff;
    min-height: 50px;
    border-top: 1px solid #ddd;
}

.output-success {
    color: #333;
    background-color: #f9f9f9;
    padding: 10px;
    border-radius: 3px;
    margin: 0;
}

.output-error {
    color: #d9534f;
    background-color: #fdf7f7;
    padding: 10px;
    border-radius: 3px;
    margin: 0;
}

.output-info {
    color: #31708f;
    background-color: #d9edf7;
    padding: 10px;
    border-radius: 3px;
}

.loading {
    color: #777;
    font-style: italic;
}

/* Progress Tracking */
.progress-container {
    position: fixed;
    top: 60px;
    right: 20px;
    width: 200px;
    background: white;
    padding: 10px;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 1000;
}

.progress-text {
    text-align: center;
    margin-top: 5px;
    font-size: 12px;
    color: #666;
}

.section-complete {
    margin-right: 10px;
    cursor: pointer;
}

/* Enhanced Navigation */
.sidebar-nav a.active {
    background-color: #e9ecef;
    border-left: 3px solid #337ab7;
    padding-left: 22px;
}

.sidebar-nav a {
    transition: all 0.3s ease;
}

/* Interactive Visualizations */
.plot-container {
    position: relative;
    margin: 20px 0;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
}

.plot-controls {
    margin-top: 15px;
    padding: 15px;
    background-color: #f8f8f8;
    border-radius: 4px;
}

.plot-controls label {
    display: inline-block;
    margin-right: 10px;
    font-weight: normal;
}

.plot-controls input[type="range"] {
    width: 200px;
    vertical-align: middle;
}

.plot-value {
    display: inline-block;
    width: 50px;
    text-align: center;
    font-weight: bold;
    color: #337ab7;
}

/* Collapsible Sections */
.collapsible {
    background-color: #f1f1f1;
    color: #444;
    cursor: pointer;
    padding: 10px 15px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 16px;
    transition: 0.4s;
    margin-top: 10px;
}

.collapsible:after {
    content: '\002B';
    color: #777;
    font-weight: bold;
    float: right;
    margin-left: 5px;
}

.collapsible.active:after {
    content: "\2212";
}

.collapsible:hover {
    background-color: #e1e1e1;
}

.collapsible-content {
    padding: 0 18px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    background-color: #f9f9f9;
}

/* Interactive Quiz */
.quiz-container {
    margin: 20px 0;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

.quiz-question {
    font-weight: bold;
    margin-bottom: 15px;
}

.quiz-options {
    list-style: none;
    padding: 0;
}

.quiz-options li {
    margin-bottom: 10px;
}

.quiz-options input[type="radio"] {
    margin-right: 10px;
}

.quiz-submit {
    margin-top: 15px;
}

.quiz-feedback {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}

.quiz-feedback.correct {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.quiz-feedback.incorrect {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .progress-container {
        position: static;
        width: 100%;
        margin-bottom: 20px;
    }

    .code-editor {
        font-size: 12px;
        min-height: 100px;
    }

    .plot-controls input[type="range"] {
        width: 150px;
    }

    .plot-container {
        padding: 12px;
    }

    .plot-controls {
        padding: 10px;
    }

    .plot-controls label {
        display: block;
        margin-bottom: 6px;
    }

    .quiz-container {
        padding: 12px;
    }

    .collapsible {
        font-size: 14px;
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .code-editor {
        font-size: 11px;
        padding: 8px;
    }

    .code-buttons {
        flex-direction: column;
        gap: 6px;
    }

    .plot-controls input[type="range"] {
        width: 120px;
    }

    .quiz-question {
        font-size: 0.95rem;
    }
}