body {
    margin: 0;
    min-height: 100vh;
    background-color: #FFD60A;
    color: #111111;
    font-family: Arial, sans-serif;

    display: flex;
    justify-content: center;
    align-items: center;
}

.app {
    background-color: #FFFBEA;
    padding: 40px;
    border: 4px solid #111111;
    border-radius: 24px;
    text-align: center;
    max-width: 700px;
    width: 90%;
}

.main-title {
    font-size: 4rem;
    font-weight: 900;
    margin: 0;
    line-height: 1;
}

.question {
    font-size: 2.2rem;
    font-weight: 900;
    margin-top: 40px;
    margin-bottom: 45px;
}

.feature-title {
    color: #e63946;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 3px;
    margin-top: 15px;
    margin-bottom: 5px;
}

#levelNumber {
    margin-top: 0;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

#laughSlider {
    display: block;
    width: 100%;
    height: 14px;
    appearance: none;
    background: #e63946;
    border: 3px solid #111111;
    border-radius: 10px;
    cursor: pointer;
    margin: 0 auto;
}

#laughSlider::-webkit-slider-thumb {
    appearance: none;
    width: 32px;
    height: 32px;
    background: #111111;
    border: 4px solid #FFFBEA;
    border-radius: 50%;
    cursor: pointer;
}

.slider-numbers {
    display: flex;
    justify-content: space-between;
    font-weight: 900;
    font-size: 1.2rem;
    margin-top: 10px;
}

.one {
    display: inline-flex;
    justify-content: center;
    align-items: center;

    width: 45px;
    height: 45px;

    font-size: 1.4rem;
    font-weight: 900;
}

#laughTitle {
    text-align: center;
    margin-top: 30px;
    margin-bottom: 0;
    font-size: 2rem;
    font-weight: 900;
}

.eleven {
    display: inline-flex;
    justify-content: center;
    align-items: center;

    width: 45px;
    height: 45px;

    background: #e63946;
    color: white;

    border: 4px solid #111111;
    border-radius: 50%;

    font-size: 1.4rem;
    font-weight: 900;

    box-shadow: 0 5px 0 #111111;
}

.eleven {
    animation: alarmPulse 1.2s infinite;
}

@keyframes alarmPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(230, 57, 70, 0.7);
    }

    70% {
        box-shadow: 0 0 0 12px rgba(230, 57, 70, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(230, 57, 70, 0);
    }
}

.pure-joy {
    color: #e63946;
    font-size: 5rem !important;
    animation: joyPulse 0.7s infinite;
}

@keyframes joyPulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.12);
    }

    100% {
        transform: scale(1);
    }
}

#peaceButton {
    display: block;
    margin: 60px auto 0;
    background: none;
    border: none;
    color: #999999;
    font-size: 0.7rem;
    cursor: pointer;
}

.peace-mode {
    background-color: #eeeeee;
    color: #555555;
}

.peace-mode .app {
    background-color: #f5f5f5;
    border: 1px solid #999999;
    border-radius: 0;
}

.peace-mode .main-title {
    display: none;
}

.peace-mode .question {
    font-size: 1.2rem;
    font-weight: normal;
}

.peace-mode .feature-title {
    color: #777777;
    letter-spacing: 0;
}

.peace-mode #laughSlider {
    background: #cccccc;
    height: 4px;
}

.peace-mode #laughSlider::-webkit-slider-thumb {
    width: 14px;
    height: 14px;
    background: #777777;
    border: none;
}

.peace-mode #laughTitle {
    font-size: 1rem;
    font-weight: normal;
    color: #777777;
}

.peace-mode .app {
    background: #f2f2f2;
    border: 1px solid #cccccc;
    border-radius: 0;
    max-width: 350px;
    padding: 20px;
}

.peace-mode .main-title {
    font-size: 1rem;
    font-weight: normal;
    color: #777777;
}

.peace-mode .question {
    font-size: 1rem;
    font-weight: normal;
    margin: 25px 0;
    color: #666666;
}

.peace-mode .feature-title {
    font-size: 0.7rem;
    font-weight: normal;
    letter-spacing: 0;
    color: #888888;
}

.peace-mode #levelNumber {
    font-size: 0.7rem;
    font-weight: normal;
    color: #999999;
}

.peace-mode #laughTitle {
    font-size: 0.8rem !important;
    font-weight: normal;
    color: #888888;
    margin-top: 15px;
    animation: none;
}