:root {
    --orange-soft: hsl(35, 77%, 62%);
    --red-soft: hsl(5, 85%, 63%);

    --off-white: hsl(36, 100%, 99%);
    --grayish-blue: hsl(233, 8%, 79%);
    --grayish-blue-dark: hsl(236, 13%, 42%);
    --blue-dark: hsl(240, 100%, 5%);

    --fsize: 15px;
    --fweight-normal: 400;
    --fweight-semibold: 700;
    --fweight-bold: 800;
    --ff-base: "Inter";
    --fstyle: normal;
    --f-optical-sizing: auto;
}

@layer reset {

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

    * {
        margin: 0;
    }

    html, body {
        line-height: 1;
        -webkit-font-smoothing: antialiased;

        font-family: var(--ff-base), sans-serif;
        font-weight: var(--fweight-normal);
        font-style: var(--fstyle);
        font-size: var(--fsize);
        font-optical-sizing: var(--f-optical-sizing);
        color: var(--blue-dark);
    }

    img, picture, video, canvas, svg {
        display: block;
        max-width: 100%;
    }

    input, button, textarea, select {
        font: inherit;
    }

    p, h1, h2, h3, h4, h5, h6 {
        overflow-wrap: break-word;
    }

    p {
        text-wrap: pretty;
    }

    #root, #__next {
        isolation: isolate;
    }
}

body {
    --padding-inline: 1rem;

    margin-inline: auto;
    min-height: 100dvh;
    padding-inline: var(--padding-inline);
    padding-block-start: 6rem;
    padding-block-end: 4rem;
    background-color: var(--off-white);
    max-inline-size: 576px;

    @media (min-width: 768px) {
        max-inline-size: 1140px;
        padding-block-start: 0;
    }

    &.no-scroll {
        overflow: hidden;
    }

    & p {
        color: var(--grayish-blue-dark);
        line-height: 1.75;
    }

    & h2 {
        font-size: 2rem;
        font-weight: var(--fweight-semibold);
    }
}

.navbar {
    --navbar-padding-block: 2rem;
    --navbar-padding-inline: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    inset: 0 0 auto 0;
    background-color: var(--off-white);
    margin-inline: auto;
    max-inline-size: 576px;


    padding-block: var(--navbar-padding-block);
    padding-inline: var(--navbar-padding-inline);

    z-index: 1000;


    @media (min-width: 768px) {
        position: unset;
        --navbar-padding-inline: 0;
        max-inline-size: none;


        & .navbar__menu-open {
            display: none;
        }
    }
}

.navbar__logo-container {
    height: 30px;

    @media (min-width: 768px) {
        height: 40px;
    }

    & svg {
        height: 100%;
        width: auto;
    }
}

.navbar__menu-open {
    border: none;
    background: url("assets/images/icon-menu.svg");
    width: 40px;
    height: 17px;
    cursor: pointer;
    outline: none;
    position: relative;

    &::before {
        content: "";
        position: absolute;
        display: block;
        inset: -6px;
        border: 2px solid transparent;
        border-radius: 4px;
        transition: border-color 0.25s ease;
    }

    &:is(&:focus-visible, &:active)::before {
        border-color: var(--red-soft);
    }
}

.overlay {
    position: fixed;
    inset: 0;
    background-color: hsl(from var(--grayish-blue-dark) h s l / 0.6);
    pointer-events: auto;
}

.navbar__list-container {
    --link-list-gap: 5.75rem;
    --link-list-padding: 2rem 1.5rem;

    position: fixed;
    display: none;
    flex-direction: column;
    background-color: var(--off-white);
    gap: var(--link-list-gap);

    align-items: flex-start;

    padding: var(--link-list-padding);

    inset: 0 0 0 auto;
    width: 70%;

    @media (min-width: 768px) {
        display: flex;
        flex-direction: row;
        position: unset;
        max-width: min-content;

        --link-list-gap: 0;
        --link-list-padding: 0 8px 0 0;


        & .navbar__menu-close {
            display: none;
        }

        & .navbar__list {
            display: flex;

            & a {
                font-size: var(--fsize);
                color: var(--grayish-blue-dark);
            }
        }
    }

    &.active {
        display: flex;
    }

    & .navbar__menu-close {
        background: url("assets/images/icon-menu-close.svg");
        width: 32px;
        height: 31px;
        align-self: flex-end;
        border: none;
        cursor: pointer;
        outline: none;
        position: relative;

        &::before {
            content: "";
            position: absolute;
            display: block;
            inset: -6px;
            border: 2px solid transparent;
            border-radius: 4px;
            transition: border-color 0.25s ease;
        }

        &:is(&:focus-visible, &:active)::before {
            border-color: var(--red-soft);
        }
    }
}

.navbar__list {
    display: grid;
    gap: 2rem;
    align-items: flex-start;
    padding: 0;

    & li {
        list-style: none;
    }

    & a {
        text-decoration: none;
        color: inherit;

        font-size: 1.25rem;
        font-weight: var(--fweight-normal);

        outline: none;
        position: relative;

        &::before {
            content: "";
            display: block;
            position: absolute;
            inset: -4px -8px;
            border: 2px solid transparent;
            border-radius: 4px;

            transition: border-color 0.25s ease;
        }

        &:is(&:hover, &:focus-visible, &:active) {
            color: var(--red-soft);
        }

        &:is(&:focus-visible, &:active)::before {
            border-color: var(--red-soft);
        }
    }

    @media (min-width: 768px) {
        gap: 2.625rem;
    }
}

main {
    display: grid;
    gap: 4rem;

    @media (min-width: 768px) {
        grid-template-columns: 675fr 325fr;
        column-gap: 2rem;
        row-gap: 4.75rem;
    }
}

.grid-section-top {
    display: grid;
    gap: 1.5rem;

    --fsize-h1: 2.875rem;

    @media (min-width: 768px) {
        grid-auto-rows: min-content;

        & h1 {
            --fsize-h1: 3.25rem;
        }

    }
    @media (min-width: 1024px) {
        gap: 2.25rem;
        grid-template-columns: 1fr 1fr;

        & picture {
            grid-column: 1 / -1;
        }

        & h1 {
            --fsize-h1: 4rem;
        }
    }

    & h1 {
        font-size: var(--fsize-h1);
        font-weight: var(--fweight-bold);
    }

    & div {
        display: grid;
        gap: 1.5rem;
    }

    & .btn-style {
        align-self: flex-start;
        width: fit-content;
        word-break: break-word;
        max-inline-size: 100%;

        background-color: var(--red-soft);
        color: inherit;
        text-decoration: none;
        text-transform: uppercase;
        font-weight: var(--fweight-semibold);
        letter-spacing: 3px;
        outline: none;

        padding: 1.125rem 2.25rem;
        position: relative;

        &::before {
            content: "";
            display: block;
            position: absolute;
            inset: -4px;
            border: 2px solid transparent;
            transition: border-color 0.25s ease;
        }

        &:is(&:hover, &:focus-visible, &:active) {
            color: var(--off-white);
            background-color: var(--blue-dark);
        }

        &:is(&:focus-visible, &:active)::before {
            border-color: var(--blue-dark);
        }
    }
}

.grid-section-center {
    display: grid;
    gap: 2rem;

    padding: 1.75rem 1.25rem;

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

    @media (min-width: 768px) {

        & h2 {
            font-size: 2.5rem;
        }
    }

    & h2 {
        color: var(--orange-soft);
    }

    & hr {
        margin-block: 2rem;
        border: none;
        border-top: 1px solid var(--grayish-blue-dark);
    }

    & p {
        color: var(--grayish-blue);
    }

    & a {
        width: fit-content;
        text-decoration: none;
        color: var(--off-white);
        word-break: break-word;
        max-inline-size: 100%;
        font-size: 1.25rem;
        font-weight: var(--fweight-semibold);
        outline: none;
        position: relative;

        &::before {
            content: "";
            display: block;
            position: absolute;
            inset: -6px;
            border: 1px solid transparent;
            border-radius: 4px;
            transition: border-color 0.25s ease;
        }

        &:is(&:hover, &:focus-visible, &:active) {
            color: var(--orange-soft);
        }

        &:is(&:focus-visible, &:active)::before {
            border-color: var(--orange-soft);
        }
    }
}

.grid-container {
    display: grid;
    gap: .75rem;

    & h3 {
        color: var(--off-white);
    }
}

.grid-section-bottom {
    display: grid;
    gap: 2rem;
    grid-template-rows: repeat(3, 1fr);

    @media (min-width: 768px) {
        grid-column: 1 / -1;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: unset;
    }
    @media (min-width: 1024px) {
        grid-template-columns: 1fr 1fr 1fr;
    }

}

.flex-container {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 28.75% 1fr;

    &:nth-child(1) .flex-container__img {
        background: url("assets/images/image-retro-pcs.jpg") center;
        background-size: cover;
    }

    &:nth-child(2) .flex-container__img {
        background: url("assets/images/image-top-laptops.jpg") center;
        background-size: cover;
    }

    &:nth-child(3) .flex-container__img {
        background: url("assets/images/image-gaming-growth.jpg") center;
        background-size: cover;
    }
}

.flex-container__grid {
    min-inline-size: 0;
    display: grid;
    gap: 1rem;
    grid-auto-rows: min-content;

    & h2 {
        color: var(--red-soft);
    }

    & a {
        font-size: 1.25rem;
        font-weight: var(--fweight-bold);
        text-decoration: none;
        color: inherit;
        outline: none;
        position: relative;
        width: fit-content;
        word-break: break-word;
        max-inline-size: 100%;

        &::before {
            content: "";
            display: block;
            position: absolute;
            inset: -6px;
            border: 1px solid transparent;
            border-radius: 4px;
            transition: border-color 0.25s ease;
        }

        &:is(&:hover, &:focus-visible, &:active) {
            color: var(--red-soft);
        }

        &:is(&:focus-visible, &:active)::before {
            border-color: var(--red-soft);
        }
    }
}

.grid-section-top > *,
.grid-section-center > *,
.grid-section-bottom > *,
.flex-container__grid,
.flex-container > * {
    min-inline-size: 0;
}

#footer {
    &.visible {
        .attribution {
            display: flex;
        }
    }

    &.deactivated {
        z-index: -1;
    }

    & .attribution {
        font-size: 15px;
        display: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;

        height: 3rem;
        gap: .25rem;

        position: fixed;
        inset-inline: 0;
        inset-block-end: 0;
        border-top: 1px solid var(--grayish-blue);
        color: var(--grayish-blue-dark);

        background-color: var(--off-white);

        & a {
            text-decoration: none;
            color: var(--red-soft);
            position: relative;
            transition: margin-inline 0.25s ease;

            &::after {
                content: ' ';
                position: absolute;
                inset: -2px -4px;
                border: 2px solid transparent;
                border-radius: 4px;
                transition: border-color ease 0.25s;
            }

            &:focus-visible {
                outline: none;
                margin-inline: 6px;

                &::after {
                    border-color: var(--red-soft);
                }
            }
        }

        & .author {
            color: var(--orange-soft);

            &:focus-visible::after {
                border-color: var(--orange-soft);
            }
        }

        @media (min-width: 500px) {
            flex-direction: row;
            justify-content: center;

            gap: .75rem;
        }
    }
}