:root {
    --background: oklch(0.92 0.015 82);
    --foreground: oklch(0.19 0.012 70);
    --accent: oklch(0.68 0.2 39);

    --steel: oklch(from var(--foreground) calc(l + 0.05) c h);
    --on-steel: oklch(from var(--background) calc(l + 0.03) c h);
    --accent-strong: oklch(from var(--accent) calc(l - 0.06) calc(c - 0.02) h);

    --border: oklch(from var(--foreground) calc(l + 0.33) c h / 45%);

    --faint: oklch(from var(--background) calc(l - 0.08) c h);

    --section-pad: 8rem 2rem;
    --space: 2rem;

    --rule-hairline: 1px solid var(--border);
    --rule-heavy: 2px solid var(--foreground);

    --font-display: "Bebas Neue", sans-serif;
    --font-body: sans-serif;
    --font-mono: monospace;

    --text-label: 0.75rem;
    --text-caption: 0.7rem;
    --text-tagline: 1.5rem;

    --header-size: 5rem;

    --content-max: 2560px;
    --gutter: max(0px, calc((100vw - var(--content-max)) / 2));
}

body {
    background: var(--background);
    color: var(--foreground);
    font-family: var(--font-body);
    margin: 0;
}

h1,
h2,
h3,
p,
figure,
ul {
    margin: 0;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
}

h1 {
    font-size: 5rem;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-top: 1rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

span {
    font-family: var(--font-mono);
    font-size: var(--text-caption);
    color: var(--accent-strong);
}

header {
    display: grid;
    grid-template-columns: 1fr auto;
    height: var(--header-size);
    border-bottom: var(--rule-hairline);

    & > * {
        height: var(--header-size);
    }

    & > nav {
        border-left: var(--rule-hairline);
        display: flex;
        align-items: center;
        & > a {
            height: 100%;
            display: flex;
            align-items: center;
            padding: 0 1rem;
            font-size: var(--text-label);
            font-family: var(--font-mono);
            text-transform: uppercase;
            &:last-child {
                background-color: var(--accent);
                font-weight: bold;
            }
        }
    }
}

.logo {
    padding: 0 2em;
    & > img {
        height: 4em;
        object-fit: cover;
    }
    & > p:nth-child(2) {
        letter-spacing: 0;
        font-family: var(--font-display);
        font-size: 2rem;
    }

    & > p:last-child {
        font-family: var(--font-mono);
        font-size: var(--text-caption);
    }

    gap: 1em;
    display: inline-grid;
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    align-items: center;
}

#hero {
    display: grid;
    height: calc(100vh - var(--header-size));
    grid-template-columns: 4fr 5fr;
    & > div {
        padding: 3rem;
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: 1fr auto;
        align-items: center;

        & > div {
            grid-column: -1 / 1;

            & > p {
                font-size: var(--text-tagline);
                font-weight: light;
            }
        }

        & > p {
            font-weight: bold;
        }

        & > a {
            border-bottom: var(--rule-heavy);
            font-weight: light;
            padding-bottom: 0.25rem;
        }
    }
}

figure {
    position: relative;
    min-height: 0;
    min-width: 0;
    overflow: hidden;
    & > img {
        object-fit: cover;
        width: 100%;
        height: 100%;
    }
    & > figcaption {
        padding: 1rem 3rem 1rem 0.5rem;
        background-color: var(--accent);
        position: absolute;
        right: 0;
        bottom: 0;
        & > * {
            color: var(--foreground);
        }
    }
}

a svg {
    width: 0.75em;
    height: 0.75em;
    vertical-align: -0.125em;
}

#hero {
    background-size: 35px 35px;
    background-image:
        linear-gradient(to right, var(--faint) 1px, transparent 1px),
        linear-gradient(to bottom, var(--faint) 1px, transparent 1px);
}

.ribbon {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 2fr;
    background-color: var(--steel);
    color: var(--on-steel);
    padding: 0;
    text-transform: uppercase;

    & > * {
        padding: var(--space);
    }

    & > div {
        display: flex;
        flex-direction: column;
        border-right: var(--rule-hairline);

        & > h2 {
            color: var(--accent);
        }
    }

    & > p {
        margin: auto;
        font-size: var(--text-caption);
        color: color-mix(in oklab, var(--on-steel) 62%, transparent);
    }
}

.sticky {
    top: 2rem;
    align-self: start;
    position: sticky;
}

.list {
    display: grid;
    grid-template-columns: 2fr 3fr;
    grid-template-rows: auto;
    padding: var(--section-pad);
    gap: var(--space);

    & > ul {
        border-top: var(--rule-hairline);
        padding: 0;
        & > li {
            padding: var(--space) 0;
            display: grid;
            grid-template-columns: 3rem 1.1fr 1fr;
            border-bottom: var(--rule-hairline);

            & > *:last-child {
                color: var(--steel);
                grid-row: 2;
                grid-column: 2;
            }

            & > p {
                color: var(--steel);
            }
        }
    }
}

ul {
    list-style: none;
}

#sprzet {
    & span {
        color: var(--foreground);
    }
    background-color: var(--accent);
    padding: var(--section-pad);
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto auto;
    & > :first-child {
        grid-column: 1/-1;

        margin-bottom: 2rem;
    }

    & > :not(:first-child) {
        padding: 1rem;
    }
    & > :not(:first-child):not(:last-child) {
        border-right: var(--rule-heavy);
    }
}

#cta {
    background-color: var(--accent);
    padding: var(--section-pad);
    display: grid;
    grid-template-columns: 4fr 3fr;
    grid-template-rows: auto auto auto;
    & > div {
        align-self: center;
        grid-row: 1 / -1;
        & > h2 {
            margin-top: 1rem;
            line-height: 0.95;
            font-size: 3.5rem;
        }
    }

    & > a,
    & p,
    & span {
        text-decoration: none;
        color: var(--foreground);
        padding: 1rem 0;
    }

    & > p {
        font-weight: bold;
    }

    & > #mail-link {
        font-weight: bold;
        border-top: var(--rule-heavy);
        border-bottom: var(--rule-heavy);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    & > #phone-link {
        font-size: 0.8rem;
    }
}

footer {
    background: var(--steel);
    color: var(--on-steel);
    padding: var(--space);
}

#realizacje {
    background-color: var(--steel);
    color: var(--on-steel);
    padding: var(--section-pad);

    & > div:first-child {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        gap: var(--space);
        margin-bottom: 3rem;
    }

    & > .grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1px;
        background: var(--border);
    }

    & .project-card {
        background: var(--steel);
        color: inherit;
        display: block;

        & img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }

        & > div {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1.5rem;
        }
    }

    & .more-link {
        display: inline-block;
        font-family: var(--font-mono);
        font-size: var(--text-label);
        text-transform: uppercase;
        color: var(--accent);
        border-bottom: 1px solid var(--accent);
        padding-bottom: 0.25rem;
    }
}

#obszar {
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 2fr 3fr;
    grid-template-rows: auto auto;
    gap: var(--space);

    & > div {
        grid-column: 1;
        grid-row: 1;
        padding-top: 2rem;
    }

    & > figure {
        grid-column: 2;
        grid-row: -1 / 1;

        & > img {
            position: absolute;
            object-fit: contain;
        }
    }

    & > ul {
        padding-bottom: 2rem;
        grid-column: 1;
        grid-row: 2;
        display: flex;
        flex-wrap: wrap;
        gap: 0.75rem;
        list-style: none;
        padding: 0;

        & > li {
            font-family: var(--font-mono);
            font-size: var(--text-label);
            text-transform: uppercase;
            border: var(--rule-hairline);
            padding: 0.5rem 1rem;
        }
    }
}

a {
    text-decoration: none;
    color: var(--foreground);
}

#album {
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    & > figure {
        aspect-ratio: 1/1;
        cursor: zoom-in;
    }
}

#lightbox {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 4rem 5rem;
    background: color-mix(in oklab, var(--foreground) 92%, transparent);

    &.open {
        display: flex;
    }

    & > img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
    }

    & > button {
        position: absolute;
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        color: var(--on-steel);
        cursor: pointer;
        padding: 0.75rem;
        opacity: 0.75;
        transition: opacity 0.15s;

        &:hover,
        &:focus-visible {
            opacity: 1;
        }
    }

    & > #lb-close {
        top: 1rem;
        right: 1rem;
    }

    & > #lb-prev {
        top: 50%;
        left: 1rem;
        transform: translateY(-50%);
    }

    & > #lb-next {
        top: 50%;
        right: 1rem;
        transform: translateY(-50%);
    }
}

body:has(#lightbox.open) {
    overflow: hidden;
}

header,
#hero,
.ribbon,
.list,
#sprzet,
#cta,
#realizacje,
#obszar,
#album,
footer {
    --pad-inline: 0px;
    padding-inline: max(var(--pad-inline), var(--gutter));
}

.list,
#sprzet,
#cta,
#realizacje,
#obszar,
#album,
footer {
    --pad-inline: 2rem;
}

#hero figure {
    --fade: clamp(0px, calc(var(--gutter) * 2), 36rem);
    margin-right: calc(-1 * var(--gutter));

    & > img {
        -webkit-mask-image: linear-gradient(
            to right,
            black calc(100% - var(--fade)),
            transparent 100%
        );
        mask-image: linear-gradient(
            to right,
            black calc(100% - var(--fade)),
            transparent 100%
        );
    }
}

#hero figcaption {
    right: var(--gutter);
}

@media (max-width: 1050px) {
    header {
        & > nav {
            & > :not(:last-child) {
                display: none;
            }
        }
    }

    .logo {
        grid-template-rows: auto auto;
        row-gap: 0;
        & > p {
            align-self: end;
            &:last-child {
                align-self: start;
            }
        }
        & > img {
            grid-row: -1 / 1;
            grid-column: 1;
        }
    }

    #hero {
        grid-template-columns: auto;
        grid-template-rows: auto auto;

        & > div {
            grid-template-columns: auto;
            grid-template-rows: repeat(3, auto);
            padding: var(--space);
            & > p {
                margin-bottom: 1em;
            }
        }
    }

    .ribbon {
        grid-template-columns: 1fr 1fr 1fr;
        & > * {
            padding: 2rem 1rem;
        }
        & > p {
            display: none;
        }
    }

    .list {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }

    .sticky {
        position: unset;
        align-self: unset;
    }

    #sprzet {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, auto);

        & > :not(:first-child):not(:last-child) {
            border-right: none;
            border-bottom: var(--rule-heavy);
        }
    }

    #obszar {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(2, auto);
        & > figure {
            display: none;
        }
    }

    #cta {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, auto);
        & > p {
            padding-top: 3rem;
        }
    }

    #realizacje {
        & > .grid {
            grid-template-columns: 1fr;
            grid-template-rows: repeat(3, 1fr);
        }
    }
}

@media (max-width: 700px) {
    :root {
        --section-pad: 4rem 1.25rem;
        --space: 1.25rem;
    }

    h1 {
        font-size: clamp(3rem, 14vw, 5rem);
        letter-spacing: -1px;
    }

    .logo {
        grid-template-rows: auto;
        grid-auto-flow: column;
        padding: 0 1rem;
        gap: 0.5rem;

        & > img {
            grid-row: auto;
            grid-column: auto;
            height: 2.5em;
        }

        & > p {
            align-self: center;
        }

        & > p:last-child {
            display: none;
        }
    }

    header > nav > a {
        padding: 0 0.5rem;
        white-space: nowrap;
    }

    .list,
    #sprzet,
    #cta,
    #realizacje,
    #obszar,
    footer {
        --pad-inline: 1.25rem;
    }

    .list > ul > li {
        grid-template-columns: 2rem 1fr;
        gap: 0.35rem 0.75rem;

        & > *:last-child {
            grid-row: auto;
            grid-column: auto;
        }

        & > span:first-child {
            grid-row: 1 / span 3;
            grid-column: 1;
        }

        & > h3,
        & > p,
        & > span:last-child:not(:first-child) {
            grid-column: 2;
        }
    }

    #realizacje > div:first-child {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    #obszar {
        padding: 3rem 1.25rem;
    }

    #cta > p {
        padding-top: 2rem;
    }

    #album {
        grid-template-columns: 1fr;
        padding: 1rem;
        gap: 0.75rem;
    }

    #lightbox {
        padding: 4rem 1rem;

        & > #lb-prev {
            left: 0;
        }

        & > #lb-next {
            right: 0;
        }
    }
}