/* Variables */

:root {
    --color-text: #111;
    --color-error: #db344b;

    --color-brand-blue: #40b1f4;
    
    --color-panel-border: rgba(0, 0, 0, 20%);
    --color-panel-background: #fff;

    --panel-border-radius: 16px;
    --panel-box-shadow: 0 0 0 1px var(--color-panel-border);
    --panel-padding: 12px;
    --dialog-backdrop: rgba(255, 255, 255, 0.5);
}

/* Reset */ 

body {
    margin: 0;
    width: 100vw;
    height: 100vh;

    color: var(--color-text);
    line-height: 1.4;
}

/* Fonts */

@font-face {
    font-family: "Fira Sans";
    src:
        local("Fira Sans Regular"),
        url("font/FiraSans-Regular.ttf");
    font-weight: 400;
}

@font-face {
    font-family: "Fira Sans";
    src:
        local("Fira Sans Italic"),
        url("font/FiraSans-Italic.ttf");
    font-weight: 400;
    font-style: italic;
}

@font-face {
    font-family: "Fira Sans";
    src:
        local("Fira Sans Bold"),
        url("font/FiraSans-Bold.ttf");
    font-weight: 700;
}

@font-face {
    font-family: "Fira Code";
    src:
        local("Fira Code"),
        url("font/FiraCode-VariableFont_wght.ttf");
    font-weight: 400;
}

:root {
    font-size: 87.5%;
    font-family: "Fira Sans", sans-serif;
}

button, textarea, input {
    font-size: inherit;
    font-family: inherit;
}

pre, code, textarea {
    font-family: "Fira Code", monospace;    
}

/* Main container layout */

main {
    width: 100%;
    height: 100%;
    position: relative;

    &>.fullscreen {
        width: 100%;
        height: 100%;
        position: absolute;
        left: 0;
        top: 0;
    }

    &>.panels {
        box-sizing: border-box;
        padding: 16px;

        display: grid;
        grid-template-columns: [left] 1fr [right] 384px;

        /* Pass all events through. Children may receive events as normal. */
        pointer-events: none;

        &>* {
            pointer-events: all;
        }

        &>rkgk-brush-editor {
            grid-column: right / right;
            height: fit-content;
            max-height: 100%;
            overflow: auto;
        }
    }

    &>rkgk-canvas-renderer {
        width: 100%;
        height: 100%;
        position: absolute;
        left: 0;
        top: 0;
    }

    &>rkgk-reticle-renderer {
        width: 100%;
        height: 100%;
        position: absolute;
        left: 0;
        top: 0;
        overflow: hidden;
    }

    &>rkgk-brush-editor {
        width: 384px;
    }

    &>#js-loading {
        background-color: var(--color-panel-background);

        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Buttons */

button {
    border: 1px solid var(--color-panel-border);
    border-radius: 9999px;
    padding: 0.5rem 1.5rem;
    background-color: var(--color-panel-background);
}

/* Text areas */ 

input {
    border: none;
    border-bottom: 1px solid var(--color-panel-border);
}

*:focus {
    outline: 1px solid #40b1f4;
    outline-offset: 4px;
}

/* Modal dialogs */

dialog:not([open]) {
    /* Weird this doesn't seem to work by default. */
    display: none;
}

dialog::backdrop {
    background-color: var(--dialog-backdrop);
    backdrop-filter: blur(8px);
}

/* Details */

details>summary {
    cursor: pointer;
}

/* Throbbers */

@keyframes rkgk-throbber-loading {
    0% {
        clip-path: inset(0% 100% 0% 0%);
        animation-timing-function: cubic-bezier(0.12, 0, 0.39, 0);
    }

    50% {
        clip-path: inset(0% 0% 0% 0%);
        animation-timing-function: cubic-bezier(0.61, 1, 0.88, 1);
    }

    100% {
        clip-path: inset(0% 0% 0% 100%);
    }
}

rkgk-throbber {
    display: inline;

    &.loading {
        display: block;
        width: 16px;
        height: 16px;
        background-color: var(--color-brand-blue);
        animation: infinite alternate rkgk-throbber-loading;
        /* I wonder how many people will get _that_ reference. */
        animation-duration: calc(60s / 141.98);
    }

    &.error {
        /* This could use an icon. */
        color: var(--color-error);
    }
}

/* Panels */

.rkgk-panel {
    display: block;
    background: var(--color-panel-background);
    padding: var(--panel-border-radius);
    border: none;
    border-radius: 16px;
    box-shadow: var(--panel-box-shadow);
    box-sizing: border-box;
}

/* Canvas renderer */

rkgk-canvas-renderer {
    display: block;

    &>canvas {
        display: block;
    }
}

/* Reticle renderer */

rkgk-reticle-renderer {
    display: block;

    pointer-events: none;

    &>.reticles {
        position: relative;
    }
}

rkgk-reticle-cursor {
    --color: black; /* Overridden by JavaScript to set a per-user color. */

    position: absolute;
    display: block;

    &>.container {
        &>.arrow {
            width: 24px;
            height: 24px;
            background-color: var(--color);
            clip-path: path("M 0,0 L 13,13 L 6,13 L 0,19 Z");
        }

        &>.nickname {
            position: absolute;
            top: 20px;
            left: 8px;

            color: white;
            background-color: var(--color);
            padding: 1px 6px;
            border-radius: 9999px;
            text-align: center;
            font-weight: bold;
        }
    }
}

/* Brush editor */

rkgk-brush-editor {
    &>.text-area {
        display: block;
        width: 100%;
        margin: 0;
        resize: none;
        white-space: pre-wrap;
        border: none;
        overflow: hidden;
        box-sizing: border-box;
    }

    &>.errors:empty, &>.error-header:empty {
        display: none;
    }

    &>.error-header {
        margin-top: 1em;
        margin-bottom: 0;
        font-size: 1rem;
        color: var(--color-error);
    }

    &>.errors {
        margin: 0;
        color: var(--color-error);
        white-space: pre-wrap;
    }
}

/* Welcome screen */

rkgk-welcome {
    &>dialog {
        h3 {
            margin: 0.5rem 0;
            font-size: 2rem;
            font-weight: bold;
        }
    }
}

/* Connection status dialogs */

rkgk-connection-status {
    &>dialog[name='logging-in-dialog'][open], &>dialog[name='disconnected-dialog'][open] {
        border: none;
        outline: none;
        background: none;

        display: flex;
        gap: 8px;
        align-items: center;
    }

    &>dialog[name='error-dialog'][open] {
        & textarea[name='error-text'] {
            box-sizing: border-box;
            width: 100%;
            resize: none;
            border: 1px solid var(--color-panel-border);
            padding: 4px;
        }
    }
}