:root {
    --surface: #C6C6C6;
    --frame: #000;
    --highlight: #FFF;
    --shadow: #555;
    --face: #8B8B8B;
    --face-light: #919191;
    --frame-light: #1F1F1F;

    --text-light: #FCFCFC;
    --text-dark: #3F3F3F;
    --text-shadow: 4px 4px #3E3E3E;
    --text-green: #54FC54;
    --text-shadow-green: 4px 4px #153E15;

    --adv-hover-description-text: #54FC54;
    --adv-hover-description-text-shadow: 4px 4px #153E15;
    --adv-hover-description-text-challenge: #A800A8;
    --adv-hover-description-text-challenge-shadow: 4px 4px #290029;
}

* { 
    box-sizing: border-box;
    image-rendering: pixelated;
}

html, body {
    height: 100%;
}

@font-face {
    font-family: 'minecraftregular';
    src: url('fonts/minecraftregular-bmg3-webfont.woff2') format('woff2'),
         url('fonts/minecraftregular-bmg3-webfont.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

body {
    --bg-size: 256px 256px;
    margin: 0;
    font-family: 'minecraftregular';
    place-content: center;

    background: linear-gradient(
        to bottom,
        #7AAAFF,
        #ACD2FF
    ); 
}

body, menu, h1, figure, h2, p {
    margin: 0;
}

h1, h2, p,
figure:empty::before, figure:empty::after {
    font-size: 2em;
    font-weight: normal;
    color: var(--text-light);
}

/* @media (prefers-color-scheme: dark) {
    body {
        background:
            url('assets/texture/End_Sky_\(texture\)_JE2.png'), 
            rgba(0, 0, 0, 0.9);
        background-size: var(--bg-size);
        background-blend-mode: multiply;
    }
} */

main {
    --img-size: 56px;

    display: grid;
    grid-template-columns: auto auto auto;
    place-items: center;
    justify-content: center;
    column-gap: 12rem;
}

footer {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    gap: 1rem;
}

menu[role=tablist] {
    display: flex;
    list-style-type: none;
    padding-left: 0;
    margin: 0 0 -2px;
    gap: 1rem;

    > button {
        --margin-selected: 1rem;
        --margin-bottom: -14px;

        background-color: var(--face);
        position: relative;
        border: 0.5rem solid transparent;
        border-image-source: url('assets/gui/button-border-dark.png');
        margin-bottom: var(--margin-bottom);
        aspect-ratio: 1;
        padding: 0 1rem;

        &[aria-selected=true] {
            background-color: var(--surface);
            border-image-source: url('assets/gui/button-border.png');
            margin-top: calc(var(--margin-selected) * -1);
            margin-bottom: calc(var(--margin-bottom) + 4px);
            z-index: 2;

            &:first-child {
                border-image-source: url('assets/gui/button-border-first.png');
                margin-bottom: var(--margin-bottom);
            }

            > img {
                margin-top: var(--margin-selected);
            }
        }

        &[aria-hidden=true] > img { pointer-events: all }
        &:focus-visible { outline: none }
    }
}

[role=tabpanel] {
    --inline: 1.5rem;

    display: flex;
    flex-direction: column;
    background: var(--surface);
    position: relative;
    border: 0.5rem solid transparent;
    border-image-source: url('assets/gui/panel-border.png');
    height: 550px;
    width: 950px;
    max-width: 950px;

    > h1 {
        padding: 0.75rem var(--inline) 0.5rem var(--inline);
        color: var(--text-dark);
    }

    > .wrapper {
        --border-shadow: 0.3;
        position: relative;
        overflow: auto;
        flex: 1;
        margin-inline: var(--inline);
        margin-bottom: 1.5rem;

        &::after {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            box-shadow:
                4px 4px var(--frame-light) inset,
                -4px -4px var(--face-light) inset,
                4px 4px 8px 8px rgba(0, 0, 0, var(--border-shadow)) inset,
                -4px -4px 8px 8px rgba(0, 0, 0, var(--border-shadow)) inset;
            z-index: 2;
        }
    }

    > .wrapper > figure {
        position: relative;
        overflow: auto;
        width: 100%;
        height: 100%;
        padding: 0.25rem;
        background-size: 64px;
        scrollbar-width: none;

        &::-webkit-scrollbar { display: none }

        &.dragging { user-select: none}

        &:empty { 
            background: #000 !important;

            &::before {
                content: "There doesn't seem to be anything here...";
                position: absolute;
                left: 50%;
                top: 50%;
                transform: translate(-50%, -50%);
                white-space: nowrap;
                text-shadow: var(--text-shadow);
            }

            &::after {
                content: ":(";
                position: absolute;
                left: 50%;
                bottom: 0.25rem;
                transform: translateX(-50%);
                text-shadow: var(--text-shadow);
            }
        }
    }

    &[hidden] {
        display: none;
    }
}

.scroller li,
ul.tree-view span,
.overlay-clone span {
    background-color: var(--surface);
    border: 12px solid transparent;
    border-image-source: url('assets/gui/task-border.png');
    position: relative;
    padding: 0.5rem;

    &.goal { border-image-source: url('assets/gui/goal-border.png') }
    &.challenge { border-image-source: url('assets/gui/challenge-border.png') }

    &.done { 
        background-color: #AA7E0F;
        border-image-source: url('assets/gui/task-complete-border.png') 
    }
    &.goal.done { border-image-source: url('assets/gui/goal-complete-border.png') }
    &.challenge.done { border-image-source: url('assets/gui/challenge-complete-border.png') }
}

span.tooltip {
    display: none;
    position: fixed;
    z-index: 2;
    background: linear-gradient(
        to bottom,
        #290662,
        #1C063A
    );
    border: 4px solid transparent;
    border-image-source: url('assets/gui/tooltip-border.png');
    font-family: 'minecraftregular';

    > h2 {
        background: #17091A;
        text-shadow: var(--text-shadow);
        margin: 0.5rem;
    }
}

span.toast {
    display: grid;
    align-items: center;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    background: #212121;
    border: 8px transparent solid;
    border-image-source: url('assets/gui/toast-border.png');
    padding: 1rem;
    column-gap: 1rem;

    > img {
        grid-row: 1 / span 2;
        width: 48px !important;
    }

    > h2 {
        grid-column: 2;
        grid-row: 1;
        color: #FCFC00;
    }

    > p {
        display: -webkit-box;
        -webkit-box-orient: vertical;
        line-clamp: 2;
        -webkit-line-clamp: 2;
        overflow: hidden;
        max-width: 460px;
        grid-column: 2;
        grid-row: 1 / span 2;

        > a {
            color: var(--text-green);
            text-decoration: underline;
        }
    }

    > h2 + p {
        grid-row: 2;
    }
}

.scroller ul,
ul.tree-view {
    list-style: none;
    padding: 0;
    margin: 0;
}

ul.tree-view {
    --tree-inner: #fff; 
    --border-tree: 4px solid #000;

    display: flex;
    align-items: center;
}

ul.tree-view ul {
    position: relative;
    margin: 0;
    padding: 0;

    &::before {
        content: '';
        position: absolute;
        left: -0.5rem;
        bottom: 50%;
        width: 0.75rem;
        border-bottom: var(--border-tree);
        border-top: var(--border-tree);
        background: #fff;
        height: 4px;
        bottom: calc(50% - 8px);
        z-index: 2;
    }
}

ul.tree-view li {
    display: flex;
    align-items: center;
    position: relative;
    margin: 0;
    padding: 0;

    &::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 1rem;
        border-left: var(--border-tree);
        border-right: var(--border-tree);
        background: #fff;
        width: 4px;
    }

    &:first-child::before { 
        top: 50%;
        border-top: var(--border-tree);
        margin-top: -4px;
    }
    &:last-child::before { 
        bottom: 50%;
        border-bottom: var(--border-tree);
        margin-bottom: -8px;
    }
    &:only-child::before { display: none }
}

ul.tree-view span,
.overlay-clone span {
    margin: 0.25rem;
    margin-left: 0.75rem;
    position: relative;
    display: inline-block;

    > img {
        pointer-events: none;
    }
}

ul.tree-view span::before {
    content: '';
    position: absolute;
    left: -1rem;
    bottom: calc(50% - 8px);
    width: 0.5rem;
    border-bottom: var(--border-tree);
    border-top: var(--border-tree);
    background: #fff;
    height: 4px;
}

ul.tree-view span.goal::before { width: 0.75rem }

ul.tree-view .badge-container {
    position: relative;
}

.adv-info {
    position: absolute;
    display: none;
    top: 0;
    left: 0;
    flex-direction: column;
    margin-top: 16px;

    >:first-child {
        background-color: #B98F2C;
        border: 8px solid transparent;
        border-image-source: url('./assets/gui/adv-border.png');
        width: 100%;
        white-space: nowrap;
        text-shadow: var(--text-shadow);
        margin-bottom: -8px;
        height: 75px;
        padding-inline: 112px 68px;
        align-content: center;
        z-index: 1;
    }

    >:last-child {
        background-color: #212121;
        border: 8px solid transparent;
        border-top: none;
        border-image-source: url('./assets/gui/adv-border-bottom.png');
        color: var(--adv-hover-description-text);
        text-shadow: var(--adv-hover-description-text-shadow);
        width: 100%;
        z-index: 0;
        padding-inline: 12px 4px;
        padding-block: 16px 4px;
    }
}

span.goal + .adv-info > :first-child,
span.challenge + .adv-info > :first-child {
    background-color: #036A96;
    border-image-source: url('./assets/gui/adv-border-2.png');
}

span.goal + .adv-info > :last-child,
span.challenge + .adv-info > :last-child {
    color: var(--adv-hover-description-text-challenge);
    text-shadow: var(--adv-hover-description-text-challenge-shadow);
    padding-block: 20px 4px;
}

ul.tree-view > span::before { display: none }
ul.tree-view .badge-container:has(span.goal) + ul::before {
    width: 1rem;
    left: -0.75rem;
}
ul.tree-view ul li:only-child > .badge-container > span::before {
    width: 0.75rem;
    left: -1.25rem;
}
ul.tree-view li:only-child > .badge-container > span.goal::before {
    width: 1rem;
    left: -1.25rem;
}

#overlay-root {
    pointer-events: none;

    &:empty { display: none }
}
.overlay-clone { 
    position: fixed;
    pointer-events: none;
    z-index: 999;

    span {
        z-index: 1000;
    }
}
.overlay-clone .adv-info { display: flex }

.scroller {
    max-height: 500px;
    max-width: 500px;

    overflow: hidden;
    scrollbar-width: none;

    mask: linear-gradient(
        to bottom,
        transparent,
        white 20% 80%,
        transparent
    );
    
    &::-webkit-scrollbar { display: none }

    > ul {
        display: flex;
        flex-direction: column;
        height: max-content;
        width: max-content;
        animation: scroll-y 20s linear infinite;
        animation-direction: reverse;
    }

    &:hover ul { animation-play-state: paused; }
}

aside.player {
    user-select: none;
    pointer-events: none;
    margin-top: 2rem;
}

.scroller li,
[role=tabpanel], span.toast,
ul.tree-view span, span.tooltip,
menu[role=tablist] > button, .overlay-clone span,
.adv-info > :first-child, .adv-info > :last-child  {
    background-clip: padding-box;
    border-image-width: 16px;
    border-image-slice: 4;
}

.scroller img,
span.toast img,
ul.tree-view img,
.overlay-clone img,
menu[role=tablist] img {
    width: var(--img-size);
    aspect-ratio: 1;
    user-select: none;
}

@keyframes scroll-x {
    to { transform: translateX(-50%) }
}

@keyframes scroll-y {
    to { transform: translateY(-50%) }
}

@media screen and (max-width: 768px) {
    aside.player { display: none }
    footer { display: none }
    main { 
        grid-template-columns: auto;
        place-items: unset;
        height: 100%;
    }
    .scroller { 
        place-self: center;
        overflow-x: scroll;
        mask: linear-gradient(
            to right,
            transparent,
            white 20% 80%,
            transparent
        );

        > ul {
            animation-name: scroll-x;
            flex-direction: row;
        }
    }
    .tabs { display: inline-flex; }
    menu[role=tablist] { 
        flex-direction: column;
        gap: 0;

        > button {
            border-width: 0.5rem;
            border-image-source: url('assets/gui/task-border.png');
            padding: 0.75rem;
            margin: 0;

            &[aria-selected=true] {
                border-image-source: url('assets/gui/task-border.png');
                margin: 0;

                &:first-child {
                    border-image-source: url('assets/gui/task-border.png');
                    margin-bottom: 0;
                }
                > img {
                    margin: 0;
                }
            }
        }
    }
    article[role=tabpanel] {
        width: auto;
        height: auto;
        flex: 1;

        > figure:empty::before { text-wrap: unset }
    }
}

@media (prefers-reduced-motion: reduce) {
    .scroller { overflow: scroll }
    .scroller ul { animation: none }
}