body {
    font-family: Arial, sans-serif;
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
    text-align: center;
}
h1 {
    color: #333;
}
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
    margin: 10px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: #2196F3;
}
input:checked + .slider:before {
    transform: translateX(26px);
}
.switch-label {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    margin: 10px 0;
}
.timer {
    margin-top: 30px;
    font-size: 24px;
    font-weight: bold;
    color: #2196F3;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
}
.message {
    margin-top: 40px;
    font-size: 48px;
    font-weight: bold;
    color: #ff6b6b;
    animation: fadeIn 0.5s ease-in;
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}