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

:root {
    --color-primary-light: hsl(260, 100%, 95%);
    --color-primary-medium: hsl(264, 82%, 80%);
    --color-primary-dark: hsl(263, 55%, 52%);
    --color-black: hsl(0, 0%, 7%);
    --color-dark-blue: hsl(219, 29%, 14%);
    --color-white: hsl(0, 0%, 100%);
    --color-grey-lightest: hsl(214, 17%, 92%);
    --color-grey-lighter: hsl(0, 0%, 81%);
    --color-grey-darker: hsl(224, 10%, 45%);
    --color-grey-darkest: hsl(217, 19%, 35%);
    --font-size-large: 1.25rem;
    --font-size-medium: 0.81rem;
    --font-size-small: 0.69rem;
}

body {
    margin: 0;
    background-color: #f6f5f6;
    font-family: "Barlow Semi Condensed", sans-serif;
    font-weight: 500;
}

.grid {
    max-width: 30rem;
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 3.75rem 1.5rem;
    align-items: center;
    font-size: var(--font-size-medium);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.card {
    padding: 2rem;
    width: 100%;
    background-color: var(--color-card-background, var(--color-grey-lightest));
    border-radius: 8px;
    box-shadow: 40px 60px 50px rgba(72,85,106,0.2474);
}

.author-wrapper {
    margin: 0;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.author-avatar-wrapper {
    width: 1.75rem;
    height: 1.75rem;
}

.author-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.author-avatar--bordered {
    box-shadow: 0 0 0 2px var(--color-primary-medium);
}

.author-name {
    line-height: 1.1;
    margin-block: 0 0.25rem;
    color: var(--color-author-name, var(--color-black));
}

.author-role {
    font-size: var(--font-size-small);
    line-height: 1.1;
    margin-block: 0;
    color: var(--color-author-role, var(--color-black));
}

.card-content {
    margin: 0;
}

.card-title {
    margin-block: 1rem;
    font-size: var(--font-size-large);
    line-height: 1.2;
    color: var(--color-card-title, var(--color-black));
}

.card-text {
    margin-block: 0;
    line-height: 1.4;
    color: var(--color-card-text, var(--color-black));
}

.card--purple {
    --color-card-background: var(--color-primary-dark);
    --color-author-name: var(--color-white);
    --color-author-role: var(--color-primary-light);
    --color-card-title: var(--color-white);
    --color-card-text: var(--color-primary-light);
}

.card--grey-dark {
    --color-card-background: var(--color-grey-darkest);
    --color-author-name: var(--color-white);
    --color-author-role: var(--color-grey-lightest);
    --color-card-title: var(--color-white);
    --color-card-text: var(--color-grey-lightest);
}

.card--white {
    --color-card-background: var(--color-white);
    --color-author-name: var(--color-grey-darkest);
    --color-author-role: var(--color-grey-darker);
    --color-card-title: var(--color-grey-darkest);
    --color-card-text: var(--color-grey-darker);
}

.card--dark-blue {
    --color-card-background: var(--color-dark-blue);
    --color-author-name: var(--color-white);
    --color-author-role: var(--color-white);
    --color-card-title: var(--color-grey-lighter);
    --color-card-text: var(--color-grey-lightest);
}

.card1-grid {
    grid-area: card1;
}

.card2-grid {
    grid-area: card2;
}

.card3-grid {
    grid-area: card3;
}

.card4-grid {
    grid-area: card4;
}

.card5-grid {
    grid-area: card5;
}

footer {
    padding: 1.5rem;
    text-align: center;
    font-size: var(--font-size-small);
    color: var(--color-grey-darkest);
}

@media screen and (min-width: 48rem) {

    .grid {
        max-width: 52rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: repeat(4, auto);
        grid-template-areas: 
            "card1 card1"
            "card2 card3"
            "card4 card4"
            "card5 card5";
        align-items: stretch;
    }

    .card--purple {
        background: var(--color-primary-dark) url(images/bg-pattern-quotation.svg) no-repeat right 14rem top;
        background-size: 15%;
    }
}

@media screen and (min-width: 90rem) {

    .grid {
        max-width: 70rem;
        grid-template-columns: repeat(4, 1fr);
        grid-template-rows: repeat(2, 1fr);
        grid-template-areas: 
            "card1 card1 card2 card5"
            "card3 card4 card4 card5";
    }

    .card--purple {
        background-position: right 4rem top;
        background-size: 20%;
    }
}