/*  */
:root {
    --pg-clr1: black;
    --pg-clr2: white;
    --pg-clr3: #2076e1;
    --pg-clr4: gold;
    --pg-clr5: aliceblue;
    --pg-clr6: #16a085;
    --pg-clr7: rgba(32, 118, 225, 0.5);
    --pg-clr8: rgba(255, 255, 255, 0.747);
    --pg-clr9: rgba(0, 0, 0, 0.9);
}

.s1 {
    color: var(--pg-clr1);
    background-color: var(--pg-clr2);

    background-color: var(--pg-clr3);
    background-image: url("../img/cubes.png");
    padding: 5rem 0;
}

.s1-r1 {
    width: 90%;
    max-width: 80rem;
    margin-inline: auto;

    /* * */

    display: grid;
    grid-template-columns: 1fr;
}

.s1-r1-b1 {
    justify-self: center;
}

.s1-r1-b1-c1--p {
    font-size: 3rem;
    color: var(--pg-clr2);
    text-transform: capitalize;
    padding-bottom: 1rem;
}

.s1-r1-b1-c1--h1 {
    font-size: 1.8rem;
    text-transform: capitalize;
    color: var(--pg-clr2);
    letter-spacing: .5px;
}

.s1-r1-b1-c1--spn {
    display: inline-block;
    width: 2rem;
    border-top: .5rem solid var(--pg-clr4);
    margin-right: 1rem;
}


@media (max-width: 50rem) {
    .s1 {
        padding: 3rem 0;
    }

    .s1-r1-b1-c1--p {
        font-size: 1.4rem;
    }

    .s1-r1-b1-c1--h1 {
        font-size: 1rem;
        letter-spacing: 0;
        font-weight: 400;
    }

    .s1-r1-b1-c1--spn {
        width: .5rem;
        margin-right: .5rem;
    }
}

/*  */

.s2 {
    margin: 3rem 0;
}

.s2-r1 {
    width: 90%;
    max-width: 80rem;
    margin-inline: auto;

    /* * */

    display: grid;
    grid-template-columns: 1fr 5fr 6fr;
    grid-template-areas: ".a c";
}

.s2-r1-b1 {
    grid-area: a;
    align-self: center;

    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: min-content;
    gap: .5rem;
    font-size: 1.2rem;
    letter-spacing: .5px;
}

.s2-r1-b1-c1--a {
    justify-self: start;
    padding: 0.5rem;
    text-transform: capitalize;
}

.s2-r1-b1-c1--a:hover {
    background-color: var(--pg-clr6);
    color: var(--pg-clr2);
}

.s2-r1-b1-c2--a {
    background-color: var(--pg-clr6);
    color: var(--pg-clr2);
}

.s2-r1-b2 {
    grid-area: c;

    background-color: var(--pg-clr5);
    padding: 2rem;
}

.s2-r1-b2-c1--h2 {
    text-align: center;
    font-size: 1.5rem;
    text-transform: capitalize;
    /* padding-bottom: 1rem; */
    color: var(--pg-clr6);
}

.s2-r1-b2-c1--h3 {
    padding-top: 1.5rem;
    padding-bottom: .5rem;
    text-transform: capitalize;
    line-height: 1.4em;
    letter-spacing: 0.5px;
    font-size: 1.2rem;
}

.s2-r1-b2-c1--p {
    line-height: 1.4em;
    letter-spacing: 0.5px;
    color: var(--pg-clr9);
}

@media (max-width: 50rem) {

    .s2-r1 {
        grid-template-columns: 1fr;
        grid-template-areas: "a"
            "c";
        gap: 2rem;
    }

    .s2-r1-b1 {
        grid-template-columns: 1fr 1fr;
        font-size: 1rem;
    }

    .s2-r1-b2-c1--h2 {
        font-size: 1.3rem;
        text-align: left;
    }
}

/*  */

.s3 {
    background: linear-gradient(var(--pg-clr7), var(--pg-clr7)), url(../img/pic1600-8.jpg);
    /* background: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)), url(../img/pic1600-8.jpg); */

    background-position: bottom;
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
}

.s3-r1 {
    width: 90%;
    max-width: 80rem;
    margin-inline: auto;

    padding: 3rem 0rem;
}

.s3-r1-b1 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.s3-r1-b1-c1--h2 {
    justify-self: center;
    color: var(--pg-clr2);
    font-size: 3rem;
    text-transform: capitalize;
    text-align: center;
}

.s3-r1-b1-c1--a {
    justify-self: center;
    color: var(--pg-clr2);

    font-size: 1rem;
    text-transform: uppercase;

    padding: 0.5rem 1rem;
    border-radius: 15px;

    color: var(--pg-clr8);
    border: 1px solid var(--pg-clr8);
    transition: all 0.4s ease;
}

.s3-r1-b1-c1--a:hover {
    border: 1px solid var(--pg-clr2);
    color: var(--pg-clr2);
}

@media (max-width: 50rem) {
    .s3-r1-b1-c1--h2 {
        font-size: 1.2rem;
    }
}