.image-container {
    margin: -8% 0 0 10%;
    width: 80%;
    /* max-width: 800px; */
    aspect-ratio: 16 / 9;
    position: relative;
    /* border: 1px solid #ccc; */
}

.quadrant {
    margin-top: 2.5em;
    margin-bottom: 2.5em;
    position: absolute;
    width: 25%;
    height: 100%;
    background-image: url('../image/noi4.png');
    background-size: 400% 100%;
    background-repeat: no-repeat;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    /* push inner content to bottom */
    align-items: stretch;
        /* make inner divs take full width */
    }

#Cristina {
    top: 0;
    left: 0;
    width: 27%;
    background-position: 2% 0;
    background-size: 384% 100%;
}

#Irina {
    top: 0;
    left: 27%;
    width: 24%;
    background-size: 432% 100%;
    background-position: 36% 0;
}

#Ioana {
    top: 0;
    left: 51%;
    width: 23%;
    background-position: 66% 0;
    background-size: 432% 100%;
}

#Radu {
    top: 0;
    left: 74%;
    background-position: 99% 0;
}

/* style for inner text blocks */
.state,
.time_in_state {
    margin-bottom: 1.25em;
    width: 100%;
    background-color: rgb(219 15 15 / 68%);
    /* semi-transparent dark bg for readability */
    color: white;
    font-weight: bold;
    text-align: center;
    padding: 0;
    box-sizing: border-box;
    height: 7%;
    /* font-size: xxx-large; */
    font-size: calc(2vw + 1.8vh);
}

.grayscale {
    filter: grayscale(100%);
}

.grayscale .time_in_state {
    font-style: italic;
    color: darkgray;
    font-weight: normal;
}