body,
html {
    height: 100%;
}

body {
    background-color: #222;
    font-family: Arial, Helvetica, sans-serif;
    color: white;
}

.slide > h1 {
    font-size: 6.8rem;
    font-weight: bold;
    position: absolute;
    top: 0;
    left: 0;
    margin: 15px;
    z-index: 10;
}

.carousel {
    width: 100%;
    overflow-x: hidden;
    position: relative;
    overflow-y: hidden;
}

.container {
    display: flex;
    transition: transform 750ms;
}

.slide {
    height: 550px;
    width: 100%;
    flex-shrink: 0;
    position: relative;
}

.slide > img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    filter: brightness(70%);
}

.bars {
    width: 100%;
    height: 15%;
    position: absolute;
    bottom: 5%;
    left: 0;
    display: flex;
    align-items: center;
}

.item {
    width: 33.3%;
    height: 100%;
    justify-content: baseline;
    padding-top: 15px;
    box-sizing: border-box;
    margin: 25px;
    cursor: pointer;
}

.bar {
    width: 100%;
    height: 2px;
    background-color: lightgray;
    margin-bottom: 5px;
    position: relative;
}

.bar::before {
    content: '';
    width: 100%;
    background-color: #ec9600;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    transform-origin: 0 0;
    transform: scaleX(0);
}

.active > .bar::before {
    transition: transform 1500ms linear;
    transform: scaleX(1);
}

@media (max-width: 768px) {
    .slide {
        height: 300px;
    }

    .item {
        visibility: hidden;
        position: absolute;
        width: 90%;
    }

    .item.active {
        visibility: visible;
    }

    .slide > h1 {
        font-size: 4rem;
    }
}