/* Basic styling for the experiment */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

#experiment-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 40px;
    margin: 20px auto;
    max-width: 800px;
    text-align: center;
}

.btn {
    background-color: #007bff;
    border: none;
    color: white;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    margin: 10px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

.btn:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

.download-section {
    text-align: center;
    margin-top: 30px;
    padding: 20px;
    background-color: #e9ecef;
    border-radius: 8px;
}

#download-btn {
    background-color: #28a745;
    border: none;
    color: white;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    margin: 10px;
    transition: background-color 0.3s;
}

#download-btn:hover {
    background-color: #1e7e34;
}

.stimulus {
    font-size: 80px;
    font-weight: bold;
    text-align: center;
    margin: 80px 0;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fixation {
    font-size: 60px;
    text-align: center;
    margin: 80px 0;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.instructions {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.instructions h2 {
    text-align: center;
    color: #333;
}

.instructions ul {
    padding-left: 30px;
}

.instructions li {
    margin: 10px 0;
}

.performance-stats {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 20px;
    margin: 20px 0;
}

.hidden {
    display: none;
}