html {
    font-family: 'Roboto Flex', sans-serif;
    font-weight: 400;
    /* 62.5% of 16px browser font size is 10px */
    font-size: 62.5%;
}

body {
    font-size: 1.6rem;
    line-height: 1.6;
}

.wrapper {
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    perspective: 20px;
}

header {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    z-index: -1;
}

.logo {
    max-width: 64rem;
    padding: 2.4rem;
    position: absolute;
    transform: translateZ(-10px) scale(1.2);
    text-align: center;
}

.logo__img {
    width: 100%;
}

.logo__tagline {
    /* color: rgb(0, 140, 180); */
    color: rgb(230, 230, 230);
    font-weight: 200;
    font-size: 4.8rem;
    line-height: 1;
    word-spacing: 1rem;
}



.background {
    position: absolute;
    height: 100%;
    width: 100%;
    object-fit: cover;
    z-index: -1;
}

.background {
    transform: translateZ(-20px) scale(2);
}

article {
    background-color: rgb(240, 240, 240);
    padding: 2.4rem 4.8rem;
    min-height: calc(100vh + 2.4rem);
}

.headline {
    font-size: 4.8rem;
    line-height: 1.2;
    font-weight: 200;
    text-align: center;
}

.sub-headline {
    font-size: 2.4;
    text-align: center;
    max-width: 64rem;
}

.headline,
.sub-headline {
    max-width: 64rem;
    margin: 1.2rem auto 2.4rem;

}

.features {
    display: grid;
    gap: 2.4rem;
    justify-content: center;
    align-items: center;
    max-width: 128rem;
    margin: 4.8rem auto;
}

@media screen and (min-width: 720px) {
    .features {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.features .feature {
    background-color: rgb(230, 230, 230);
    height: 100%;
    border-radius: 0.6rem;
    padding: 1.2rem;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.48);

    text-align: center;
}

.feature__icon {
    height: 9.6rem;
    color: rgb(0, 140, 180);
}

.feature__icon svg {
    height: 100%;
    margin: 2.4rem auto;
    fill: currentColor;
}

.feature__headline {
    font-size: 3.2rem;
    line-height: 1.2;
    font-weight: 200;
}