@use "variables" as *;

:root {
    --beige: #{$beige};
    --yellow: #{$yellow};
    --orange: #{$orange};
    --red: #{$red};
    --pink: #{$pink};
    --purple: #{$purple};
    --ink: #{$ink};
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
}

body {
    counter-reset: section;
    min-height: 100vh;
    color: $ink;
    background: $beige;
    font-family: "Manrope", -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 18px;
    line-height: 1.6;
    font-weight: 500;
    overflow-x: hidden;
    overflow-x: clip;

    // film grain
    &::after {
        content: "";
        position: fixed;
        inset: -50%;
        z-index: 9999;
        pointer-events: none;
        opacity: 0.07;
        background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
        animation: grain 0.8s steps(4) infinite;
    }
}

@keyframes grain {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-3%, 2%); }
    50% { transform: translate(2%, -3%); }
    75% { transform: translate(-2%, -1%); }
    100% { transform: translate(1%, 3%); }
}

img,
video,
iframe {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

strong, b { font-weight: 700; }
em, i { font-style: italic; }

::selection {
    background: $yellow;
    color: $ink;
}

:focus-visible {
    outline: 3px solid $orange;
    outline-offset: 3px;
}

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

// shared section title: "01 Gewerke"
.section-title {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: clamp(36px, 6vw, 76px);
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.03em;

    counter-increment: section;

    &__nr {
        flex: none;
        margin-top: 0.35em;
        padding: 4px 10px;
        border: 2px solid currentColor;
        border-radius: 999px;
        font-size: 14px;
        line-height: 1;
        font-weight: 700;
        letter-spacing: 0.1em;
        font-variant-numeric: tabular-nums;

        &::before {
            content: counter(section, decimal-leading-zero);
        }
    }

    &--light {
        color: $beige;
    }
}

// buttons
.button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px 16px 18px;
    border: 3px solid $ink;
    border-radius: 999px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 4px 4px 0 $ink;
    transition: transform 0.25s $ease, box-shadow 0.25s $ease;

    &:hover {
        transform: translate(-2px, -2px) rotate(-1.5deg);
        box-shadow: 7px 7px 0 $ink;
    }

    &:active {
        transform: translate(3px, 3px);
        box-shadow: 0 0 0 $ink;
    }

    &--yellow {
        background: $yellow;
        color: $ink;
    }

    &--outline {
        background: transparent;
        padding: 12px 22px;
        font-size: 16px;
    }

    &__play {
        position: relative;
        width: 32px;
        height: 32px;
        flex: none;
        border-radius: 50%;
        background: $ink;
        transition: transform 0.4s $ease;

        &::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 55%;
            transform: translate(-50%, -50%);
            border-style: solid;
            border-width: 6px 0 6px 10px;
            border-color: transparent transparent transparent $yellow;
        }
    }

    &:hover &__play {
        transform: rotate(360deg) scale(1.1);
    }
}

// scroll reveal (only hidden once JS is running)
.js [data-component~="reveal"] {
    opacity: 0;
    transform: translateY(40px) rotate(1deg);
    transition: opacity 0.8s $ease-out, transform 0.9s $ease-out;

    &.is-visible {
        opacity: 1;
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .js [data-component~="reveal"] {
        opacity: 1;
        transform: none;
    }
}