body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to bottom, #e0f7fa, #b2ebf2);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    color: #333;
}

header {
    background-color: #3498db;
    color: white;
    text-align: center;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

main {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
    width: 80%;
    max-width: 600px;
    text-align: center;
    position: relative; 
}

h2 {
    color: #3498db;
    margin-bottom: 15px;
}

.toggle-button {
    background-color: #2ecc71;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 10px; 
}

.toggle-button:hover {
    background-color: #27ae60;
}

.toggle-button.inactive {
    background-color: #e74c3c;
}

.toggle-button.inactive:hover {
    background-color: #c0392b;
}

footer {
    background-color: #34495e;
    color: white;
    text-align: center;
    padding: 30px 0;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.2);
}

.testing-toggle-container {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
}

.testing-toggle {
    border: none; 
    width: 25px;
    height: 25px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding: 0;
    background-color: transparent;
    transition: transform 0.3s ease;
}

.toggle-symbol {
    color: #3498db;
    font-size: 16px;
    transition: transform 0.3s ease;
    transform: rotate(0deg);
}

.testing-toggle.active .toggle-symbol {
    transform: rotate(180deg);
}

.testing-text {
    margin-top: 10px;
    color: #777;
    font-size: 14px;
    text-align: center;
    display: none;
    margin-left: 40px; 
    margin-right: 40px; 
}

@media (max-width: 768px) {
    .section {
        width: 95%;
    }
}