body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(to right, #6DBD8A, #39A06F);
    position: relative;
}

#logo {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 90px;
    height: auto;
    z-index: 1000;
}

#energy-chart-container {
    position: absolute;
    top: 80px;
    left: 10px;
    width: 400px;
    height: auto;
}

#container {
    position: relative;
    width: 40%;
    height: 40%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 110px; 
}

#sidebar {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #333;
    color: white;
    padding: 20px;
    width: 250px;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

#canvas-container {
    background-color: #278e3f;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#pendulumCanvas {
    border: 2px solid #333;
    background-color: #f8f9fa;
    width: 100%;
    max-width: 800px;
    height: auto;
    aspect-ratio: 5/4;
}

#sidebar h2 {
    margin: 0;
    margin-bottom: 20px;
    color: #89e087;
}

#sidebar label {
    margin-bottom: 5px;
}

#sidebar input[type="range"] {
    width: 100%;
}

#sidebar .btn {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    background-color: #28a745;
    border: none;
    border-radius: 5px;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

#sidebar .btn:disabled {
    background-color: #888;
    cursor: not-allowed;
}

#sidebar .btn:hover:not(:disabled) {
    background-color: #218838;
}

#pendulum-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    width: 100%;
}

.control-btn {
    padding: 10px 20px;
    background-color: #28a745;
    border: none;
    border-radius: 5px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    flex: 1;
    max-width: 200px;
}

.control-btn:hover {
    background-color: #218838;
}

.pendulum-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
}

#stats {
    position: fixed;
    bottom: -20px;
    left: 20px;
    padding: 12px;
    background-color: #3d844e;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: white;
    z-index: 900;
    width: 180px;
}

#stats p {
    margin: 5px 0;
    font-size: 14px;
}

#quiz-link {
    text-decoration: none;
    display: block;
    margin-top: 20px;
}

#quiz-container {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #218838;
    width: 60px; /* Adjust size as needed */
    height: 60px; /* Adjust size as needed */
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    cursor: pointer;
}

#quiz-container:hover {
    transform: scale(1.05);
    background-color: #1e7e34;
}

#quiz-container img {
    width: 30px;
    height: 30px;
}

#quiz-container span {
    display: none; /* Hide the text inside */
}