index.css

:root {
    --clr-primary-300: #b8cdec;
    --clr-primary-400: #0b33e2;

    --clr-neutral-100: #fff;
    --clr-neutral-900: #222C2A;  

    /*ff-priamry: 'Roboto', sans-serif;
    ff-accent: 'Playfair Display', serif;*/
}

*,
::before,
::after {
 box-sizing: boder-box;
}

body {
    font-family: var(--ff-primary);
    font-weight: 400;
    font-size: 1.325rem;
    line-height: 1.6;
}

body,
h1,
h2,
h3,
p {
    margin: 0;
}

h1,
h2,
h3 {
    color: var(--clr-primary-400);
    font-family: var(--ff-accent);
    font-weight: 900;
    line-height: 1;
}

h2,
h3,
p {
    margin-bottom: 1em;
}

img {
    display: block;
    max-width: 100;
}

.text-center {
    text-align: center
}

header,
section {
    padding: 3rem 0;

}

.container {
    margin-inline: auto;
    width: min(90%, 70.5rem);
}

.split {
    display: flex;
    flex-direction: column;
}

@media (min-width: 40em) {
    .split {
        flex-direction: row;
    }

    .split > * {
        flex-basis: 100%;
    }

    .split > * + * {
        margin-left: 2em;
    }
}


.bg-light { 
    background-color: var(--clr-primary-300) ;
}

.bg-primary {
    color: var(--clr-neutral-100);
     background-color: var(--clr-primary-400) ;
    }

.bg-dark {
    color: var(--clr-neutral-100);
     background-color: var(--clr-neutral-900) ;
    }


.bg-primary h2,
.bg-dark h2 {
    color: var(--clr-primary-200);
}