:root {
    --color-text: navy;
    --color-bg: papayawhip;
    --color-bg-accent: #ecdcc0;
    --size: clamp(10rem, 1rem + 40vmin, 30rem);
    --gap: calc(var(--size) / 14);
    --duration: 60s;
    --scroll-start: 0;
    --scroll-end: calc(-100% - var(--gap));
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text: papayawhip;
        --color-bg: navy;
        --color-bg-accent: #2626a0;
    }
}

.marquee {
    display: flex;
    overflow: hidden;
    user-select: none;
    gap: var(--gap);
    mask-image: linear-gradient( var(--mask-direction, to right), hsl(0 0% 0% / 0), hsl(0 0% 0% / 1) 20%, hsl(0 0% 0% / 1) 80%, hsl(0 0% 0% / 0) );
}

.marquee-group {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: var(--gap);
    min-width: 100%;
    animation: scroll-x var(--duration) linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .marquee-group {
        animation-play-state: paused;
    }
}

.marquee-vertical {
    --mask-direction: to bottom;
}

    .marquee-vertical,
    .marquee-vertical .marquee-group {
        flex-direction: column;
    }

        .marquee-vertical .marquee-group {
            animation-name: scroll-y;
        }

.marquee-reverse .marquee-group {
    animation-direction: reverse;
    animation-delay: -3s;
}

@keyframes scroll-x {
    from {
        transform: translateX(var(--scroll-start));
    }

    to {
        transform: translateX(var(--scroll-end));
    }
}

@keyframes scroll-y {
    from {
        transform: translateY(var(--scroll-start));
    }

    to {
        transform: translateY(var(--scroll-end));
    }
}

/* Element styles */
.marquee svg {
    display: grid;
    place-items: center;
    width: var(--size);
    fill: var(--color-text);
    background: var(--color-bg-accent);
    aspect-ratio: 16/9;
    padding: calc(var(--size) / 10);
    border-radius: 0.5rem;
}

.marquee-vertical svg {
    aspect-ratio: 1;
    width: calc(var(--size) / 1.5);
    padding: calc(var(--size) / 6);
}

/* Parent wrapper */
.wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    margin: auto;
    max-width: 100vw;
}

.wrapper--vertical {
    flex-direction: row;
    height: 100vh;
}

/* Toggle direction button */
.toggle {
    --size: 3rem;
    position: relative;
    position: fixed;
    top: 1rem;
    left: 1rem;
    width: var(--size);
    height: var(--size);
    font: inherit;
    text-align: center;
    cursor: pointer;
    outline: none;
    border: none;
    border-radius: 50%;
    color: inherit;
    background-color: var(--color-bg-accent);
    z-index: 1;
}

    .toggle:focus-visible {
        box-shadow: 0 0 0 2px var(--color-text);
    }

    .toggle span {
        position: absolute;
        display: inline-block;
        top: 50%;
        left: calc(100% + 0.4em);
        width: fit-content;
        white-space: nowrap;
        transform: translateY(-50%);
        animation: fade 400ms 4s ease-out forwards;
        user-select: none;
    }

    .toggle svg {
        --size: 1.5rem;
        position: absolute;
        top: 50%;
        left: 50%;
        width: var(--size);
        height: var(--size);
        fill: currentcolor;
        transform: translate(-50%, -50%);
        transition: transform 300ms cubic-bezier(0.25, 1, 0.5, 1);
    }

.toggle--vertical svg {
    transform: translate(-50%, -50%) rotate(-90deg);
}

@keyframes fade {
    to {
        opacity: 0;
        visibility: hidden;
    }
}