:root {
    /* colores */
    --light-blue: #DBE7F6;
    --dark-blue: #07417A;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    background-color: black;
}

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;

    display: grid;
    grid-template-columns: 100%;
    grid-template-rows: 120px calc(100% - 120px - 100px) 100px;
    grid-template-areas:
        "header"
        "main"
        "footer";

    max-width: 1200px;
    margin: auto;
    background-color: white;
}

header {
    background-color: var(--dark-blue);
    color: white;

    grid-area: header;
    padding: 8px 40px;

    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

header img {
    height: 100%;
    filter: invert(100%);
}

header .menu {
    display: none;
}

header nav {
    display: inline-block;
}

header nav ul {
    display: inline-flex;
    flex-direction: row;
    gap: 16px;

    list-style: none;
}

header a {
    text-decoration: none;
    text-transform: uppercase;
    color: white;
}

.hero {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
    margin-bottom: 16px
}

.hero img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

main>ul {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    padding: 0px 64px;

    list-style: none;
    margin-bottom: 32px;
}

main .promociones ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 0px 64px;
    margin-bottom: 16px;

    list-style: none;
}

main li {
    background-color: var(--light-blue);
    padding: 32px;
    border-radius: 4px;

    display: grid;
    grid-template-rows: 150px auto auto auto;
    grid-template-areas:
        "image"
        "title"
        "text"
        "btn";
    gap: 16px;

    align-content: start;
    justify-items: start;
}

main .promociones li {
    grid-template-rows: auto auto auto;
    grid-template-areas:
        "title"
        "text"
        "btn";
}

main li picture {
    display: block;
    grid-area: image;

    width: 100%;

    border-radius: 12px;
    overflow: hidden;
}

main li picture img {
    display: block;
    height: 100%;
    width: 100%;
    object-fit: cover;
}

button {
    border: none;
    border-radius: 4px;

    background-color: var(--dark-blue);
    color: white;
    font-size: 1rem;

    padding: 12px 64px;
}

footer {
    text-align: center;
    text-transform: uppercase;

    background-color: var(--dark-blue);
    color: white;

    padding-top: 40px;
}

/* RESPONSIVE */
/* ========== */

@media screen and (max-width: 900px) {

    main>ul {
        grid-template-columns: 1fr 1fr;
        padding: 0px 16px;
    }

    main .promociones ul {
        padding: 0px 16px;
    }

}

@media screen and (max-width: 600px) {
    body {
        grid-template-rows: 80px calc(100% - 80px - 80px) 80px;
    }

    header .menu {
        display: block;
    }

    header nav {
        display: none
    }

    main .promociones ul {
        grid-template-columns: 100%;
        gap: 8px;
        padding: 0px 8px;
        margin-bottom: 8px;
    }

    main>ul {
        grid-template-columns: 100%;
        gap: 8px;
        padding: 0px 8px;
    }

    main li {
        padding: 24px;
    }

}