:root {
    /* Colors */
    --lexxy-color-ink: oklch(20% 0 0);
    --lexxy-color-ink-medium: oklch(40% 0 0);
    --lexxy-color-ink-light: oklch(60% 0 0);
    --lexxy-color-ink-lighter: oklch(85% 0 0);
    --lexxy-color-ink-lightest: oklch(96% 0 0);
    --lexxy-color-ink-inverted: white;

    --lexxy-color-accent-dark: oklch(57% 0.19 260);
    --lexxy-color-accent-medium: oklch(75% 0.196 258);
    --lexxy-color-accent-light: oklch(88% 0.026 254);
    --lexxy-color-accent-lightest: oklch(92% 0.026 254);

    --lexxy-color-red: oklch(60% 0.15 27);
    --lexxy-color-green: oklch(60% 0.15 145);
    --lexxy-color-blue: oklch(66% 0.196 258);
    --lexxy-color-purple: oklch(60% 0.15 305);

    --lexxy-color-code-token-att: #d73a49;
    --lexxy-color-code-token-comment: #6a737d;
    --lexxy-color-code-token-function: #6f42c1;
    --lexxy-color-code-token-operator: #d73a49;
    --lexxy-color-code-token-property: #005cc5;
    --lexxy-color-code-token-punctuation: #24292e;
    --lexxy-color-code-token-selector: #22863a;
    --lexxy-color-code-token-variable: #e36209;

    --lexxy-color-canvas: var(--lexxy-color-ink-inverted);
    --lexxy-color-text: var(--lexxy-color-ink);
    --lexxy-color-text-subtle: var(--lexxy-color-ink-medium);
    --lexxy-color-link: var(--lexxy-color-accent-dark);
    --lexxy-color-selected: var(--lexxy-color-accent-lightest);
    --lexxy-color-selected-hover: var(--lexxy-color-accent-light);
    --lexxy-color-selected-dark: var(--lexxy-color-blue);
    --lexxy-color-code-bg: var(--lexxy-color-ink-lightest);

    /* Typography */
    --lexxy-font-base: system-ui, sans-serif;
    --lexxy-font-mono: ui-monospace, "Menlo", "Monaco", Consolas, monospace;
    --lexxy-text-small: 0.875rem;
    --lexxy-content-margin: 1rem;

    /* Focus ring */
    --lexxy-focus-ring-color: var(--lexxy-color-accent-dark);
    --lexxy-focus-ring-offset: 2px;
    --lexxy-focus-ring-size: 2px;

    /* Misc */
    --lexxy-radius: 0.5ch;
    --lexxy-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --lexxy-z-popup: 1000;
}

:where(lexxy-editor) {
    --lexxy-editor-padding: 1ch;
    --lexxy-editor-rows: 8lh;
    @supports (min-block-size: attr(rows lh)) {
        --lexxy-editor-rows: attr(rows lh, 8lh);
    }

    --lexxy-toolbar-gap: 2px;

    border: 1px solid var(--lexxy-color-ink-lighter);
    border-radius: calc(var(--lexxy-radius) + var(--lexxy-toolbar-gap));
    background-color: var(--lexxy-color-canvas);
    display: block;
    overflow: visible;
    position: relative;
    transition: opacity 150ms;

    input,
    button {
        &:focus-visible {
            outline-color: var(--lexxy-focus-ring-color);
        }
    }

    button,
    summary {
        all: unset;
        padding: 0.5rem;
        -webkit-appearance: none;
        appearance: none;
        background: var(--lexxy-color-canvas);
        border: none;
        border-radius: var(--lexxy-radius);
        cursor: pointer;
        font-size: inherit;
        inline-size: auto;

        @media (any-hover: hover) {
            &:hover:not([aria-disabled="true"]) {
                background: var(--lexxy-color-ink-lightest);
            }
        }
    }

    .node--selected {
        &:has(img) img,
        &:not(:has(img)) {
            outline: var(--lexxy-focus-ring-size) solid var(--lexxy-focus-ring-color);
            outline-offset: var(--lexxy-focus-ring-offset);
        }
    }

    action-text-attachment {
        cursor: pointer;
    }
}

/* Placeholder */
:where(.lexxy-editor--empty) {
    .lexxy-editor__content:not(:has(ul, ol))::before {
        content: attr(placeholder);
        color: currentColor;
        cursor: text;
        opacity: 0.66;
        pointer-events: none;
        position: absolute;
        white-space: pre-line;
    }
}

:where(.lexxy-editor__content) {
    min-block-size: var(--lexxy-editor-rows);
    outline: 0;
    padding: var(--lexxy-editor-padding);
}

:where(.lexxy-editor--drag-over) {
    background-color: var(--lexxy-color-selected);
    border-radius: var(--lexxy-radius);
    outline: 2px dashed var(--lexxy-color-selected-dark);
}

/* Toolbar
/* -------------------------------------------------------------------------- */

:where(lexxy-toolbar) {
    --lexxy-toolbar-icon-size: 1em;

    border-block-end: 1px solid var(--lexxy-color-ink-lighter);
    color: currentColor;
    display: flex;
    font-size: inherit;
    gap: var(--lexxy-toolbar-gap);
    max-inline-size: 100%;
    padding: 2px;
    position: relative;

    &[data-attachments="false"] button[name="upload"] {
        display: none;
    }
}

:where(.lexxy-editor__toolbar-button) {
    aspect-ratio: 1;
    block-size: 2lh;
    color: currentColor;
    display: grid;
    place-items: center;

    &:is(:active):not([aria-disabled="true"]),
    &[aria-pressed="true"] {
        background-color: var(--lexxy-color-selected);

        &:hover {
            background-color: var(--lexxy-color-selected-hover);
        }
    }

    &[aria-disabled="true"] {
        cursor: default;
        opacity: 0.3;
    }

    svg {
        -webkit-touch-callout: none;
        block-size: var(--lexxy-toolbar-icon-size);
        fill: currentColor;
        grid-area: 1/1;
        inline-size: var(--lexxy-toolbar-icon-size);
        user-select: none;
    }
}

:where(.lexxy-editor__toolbar-spacer) {
    flex: 1;
}

/* Make sure spacer is only displayed if there's another button before it */
* + :where(.lexxy-editor__toolbar-spacer) {
    min-inline-size: 1lh;
}

:where(.lexxy-editor__toolbar-overflow) {
    display: none;
    justify-self: flex-end;
    position: relative;
    z-index: 1;

    summary {
        list-style: none;

        &::-webkit-details-marker {
            display: none;
        }

        [open] & {
            background-color: var(--lexxy-color-ink-lightest);
        }
    }
}

:where(.lexxy-editor__toolbar-overflow-menu) {
    background-color: var(--lexxy-color-canvas);
    border-radius: calc(var(--lexxy-radius) + var(--lexxy-toolbar-gap));
    box-shadow: var(--lexxy-shadow);
    display: flex;
    inset-inline-end: 0;
    padding: var(--lexxy-toolbar-gap);
    position: absolute;
}

/* Link dialog
/* -------------------------------------------------------------------------- */

:where(.lexxy-link-dialog) {
    display: contents;

    dialog {
        background-color: var(--lexxy-color-canvas);
        border: 1px solid var(--lexxy-color-ink-lighter);
        border-radius: var(--lexxy-radius);
        box-shadow: var(--lexxy-shadow);
        color: var(--lexxy-color-ink);
        padding: 1ch;
        position: absolute;
        z-index: 1;
    }

    .lexxy-dialog-actions {
        display: flex;
        font-size: var(--lexxy-text-small);
        flex: 1 1 0%;
        gap: 1ch;
        margin-block-start: 1ch;
    }

    input[type="url"],
    button {
        line-height: 1.5lh;
        padding-inline: 1ch;
    }

    input[type="url"] {
        background-color: var(--lexxy-color-canvas);
        border: 1px solid var(--lexxy-color-ink-lighter);
        border-radius: var(--lexxy-radius);
        color: var(--lexxy-color-text);
        min-inline-size: 30ch;
    }

    button {
        background-color: var(--lexxy-color-ink-lightest);
        color: var(--lexxy-color-text);
        inline-size: 100%;
        justify-content: center;
    }

    button[type="submit"] {
        background-color: var(--lexxy-color-accent-dark);
        color: var(--lexxy-color-ink-inverted);
    }
}

/* Language picker
/* -------------------------------------------------------------------------- */

:where(.lexxy-code-language-picker) {
    -webkit-appearance: none;
    appearance: none;
    background-color: var(--lexxy-color-canvas);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m12 19.5c-.7 0-1.3-.3-1.7-.8l-9.8-11.1c-.7-.8-.6-1.9.2-2.6.8-.6 1.9-.6 2.5.2l8.6 9.8c0 .1.2.1.4 0l8.6-9.8c.7-.8 1.8-.9 2.6-.2s.9 1.8.2 2.6l-9.8 11.1c-.4.5-1.1.8-1.7.8z' fill='%23000'/%3E%3C/svg%3E");
    background-position: center right 1ch;
    background-repeat: no-repeat;
    background-size: 1ch;
    block-size: 1.5lh;
    border: 1px solid var(--lexxy-color-ink-lighter);
    border-radius: var(--lexxy-radius);
    color: var(--lexxy-color-ink);
    font-family: var(--lexxy-font-base);
    font-size: var(--lexxy-text-small);
    font-weight: normal;
    inset-inline-end: var(--lexxy-editor-padding);
    margin: 0.5ch 0.5ch 0 -0.5ch;
    padding: 0 2ch 0 1ch;
    text-align: start;

    @media (prefers-color-scheme: dark) {
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m12 19.5c-.7 0-1.3-.3-1.7-.8l-9.8-11.1c-.7-.8-.6-1.9.2-2.6.8-.6 1.9-.6 2.5.2l8.6 9.8c0 .1.2.1.4 0l8.6-9.8c.7-.8 1.8-.9 2.6-.2s.9 1.8.2 2.6l-9.8 11.1c-.4.5-1.1.8-1.7.8z' fill='%23fff'/%3E%3C/svg%3E");
    }
}

/* Prompt
/* ------------------------------------------------------------------------ */

:where(.lexxy-prompt-menu) {
    --lexxy-prompt-avatar-size: 24px;
    --lexxy-prompt-min-width: 20ch;
    --lexxy-prompt-padding: 0.5ch;

    background-color: var(--lexxy-color-canvas);
    border-radius: calc(var(--lexxy-prompt-padding) * 2);
    box-shadow: var(--lexxy-shadow);
    color: var(--lexxy-color-ink);
    font-family: var(--lexxy-font-base);
    font-size: var(--lexxy-text-small);
    list-style: none;
    margin: 0;
    max-block-size: 200px;
    min-inline-size: var(--lexxy-prompt-min-width);
    overflow: auto;
    padding: var(--lexxy-prompt-padding);
    visibility: hidden;
    z-index: var(--lexxy-z-popup);
}

:where(.lexxy-prompt-menu--visible) {
    visibility: initial;
}

:where(.lexxy-prompt-menu__item) {
    align-items: center;
    border-radius: var(--lexxy-radius);
    cursor: pointer;
    display: flex;
    gap: var(--lexxy-prompt-padding);
    padding: var(--lexxy-prompt-padding);
    white-space: nowrap;

    &:hover {
        background-color: var(--lexxy-color-ink-lightest);
    }

    &[aria-selected] {
        background-color: var(--lexxy-color-selected);
    }

    img {
        block-size: var(--lexxy-prompt-avatar-size);
        border-radius: 50%;
        flex-shrink: 0;
        inline-size: var(--lexxy-prompt-avatar-size);
        margin: 0;
    }

    + & {
        margin-top: 2px;
    }
}

:where(.lexxy-prompt-menu__item--empty) {
    color: var(--lexxy-color-ink-medium);
    padding: var(--lexxy-prompt-padding);
}

/* Text styles
/* -------------------------------------------------------------------------- */

:where(.lexxy-content) {
    color: var(--lexxy-color-ink);

    h1, h2, h3, h4, h5, h6 {
        display: block;
        font-weight: bold;
        hyphens: auto;
        margin-block: 0 var(--lexxy-content-margin);
        overflow-wrap: break-word;
        text-wrap: balance;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    h4 {
        font-size: 1rem;
    }

    h5 {
        font-size: 0.875rem;
    }

    h6 {
        font-size: 0.75rem;
    }

    p,
    ul,
    ol,
    dl,
    blockquote,
    figure,
    .attachment {
        margin-block: 0 var(--lexxy-content-margin);

        &:not(lexxy-editor &) {
            overflow-wrap: break-word;
            text-wrap: pretty;
        }
    }

    .lexxy-content__italic {
        font-style: italic;
    }

    .lexxy-content__bold {
        font-weight: bold;
    }

    .lexxy-content__strikethrough {
        text-decoration: line-through;
    }

    .lexxy-content__underline {
        text-decoration: underline;
    }

    blockquote {
        border-inline-start: 0.25em solid var(--lexxy-color-ink-lighter);
        font-style: italic;
        margin: var(--lexxy-content-margin) 0;
        padding: 0.5lh 2ch;
    }

    p:empty {
        display: none;
    }

    a {
        color: var(--lexxy-color-link);
    }

    img,
    video,
    embed,
    object {
        inline-size: auto;
        margin-inline: auto;
        max-block-size: 32rem;
        object-fit: contain;

        a:has(&) {
            display: inline-block;
        }
    }

    code, pre {
        background-color: var(--lexxy-color-ink-lightest);
        border-radius: var(--lexxy-radius);
        color: var(--lexxy-color-ink);
        font-family: var(--lexxy-font-mono);
        font-size: 0.9em;
        padding: 0.25ch 0.5ch;

        &:is(pre),
        &[data-language] {
            border-radius: var(--lexxy-radius);
            display: block;
            hyphens: none;
            margin-block: 0 var(--lexxy-content-margin);
            overflow-x: auto;
            padding: 1ch;
            tab-size: 2;
            text-wrap: nowrap;
            white-space: pre;
            word-break: break-word;
        }
    }

    > :last-child {
        margin-block-end: 0;
    }

    /* Keywords and attributes */

    .code-token__attr,
    .token.atrule,
    .token.attr,
    .token.keyword {
        color: var(--lexxy-color-code-token-att);
    }

    /* Constants, booleans, numbers, properties, tags */

    .code-token__property,
    .token.boolean,
    .token.constant,
    .token.deleted,
    .token.number,
    .token.property,
    .token.symbol,
    .token.tag {
        color: var(--lexxy-color-code-token-property);
    }

    /* Strings, selectors, and built-in constructs */

    .code-token__selector,
    .token.builtin,
    .token.char,
    .token.inserted,
    .token.selector,
    .token.string {
        color: var(--lexxy-color-code-token-selector);
    }

    /* Comments and meta information */

    .code-token__comment,
    .token.cdata,
    .token.comment,
    .token.doctype,
    .token.prolog {
        color: var(--lexxy-color-code-token-comment);
        font-style: italic;
    }

    /* Operators and symbolic entities */

    .code-token__operator,
    .token.entity,
    .token.operator,
    .token.url {
        color: var(--lexxy-color-code-token-operator);
    }

    /* Functions and class names */

    .code-token__function,
    .token.class,
    .token.class-name,
    .token.function {
        color: var(--lexxy-color-code-token-function);
    }

    /* Variables, regex, namespaces, important */

    .code-token__variable,
    .token.important,
    .token.namespace,
    .token.regex,
    .token.variable {
        color: var(--lexxy-color-code-token-variable);
    }

    /* Punctuation */

    .code-token__punctuation,
    .token.punctuation {
        color: var(--lexxy-color-code-token-punctuation);
    }
}

:where([data-lexical-cursor]) {
    animation: blink 1s step-end infinite;
    block-size: 1lh;
    border-inline-start: 1px solid currentColor;
    line-height: inherit;
    margin-block: 1em;
}

/* Attachments
/* ------------------------------------------------------------------------ */

:where(.attachment) {
    block-size: auto;
    display: block;
    inline-size: fit-content;
    position: relative;
    margin-inline: auto;
    max-inline-size: 100%;
    text-align: center;

    :where(progress) {
        inline-size: 100%;
        margin: auto;
    }
}

:where(.attachment__caption) {
    color: var(--lexxy-color-text-subtle);
    font-size: var(--lexxy-text-small);

    input {
        background: var(--lexxy-color-canvas);
        color: var(--lexxy-color-text);
        border: none;
        inline-size: 100%;
        max-inline-size: 100%;
        text-align: center;

        &:focus {
            outline: none;
        }

        @supports (field-sizing: content) {
            field-sizing: content;
            inline-size: auto;
            min-inline-size: 20ch;
        }
    }
}

:where(.attachment__icon) {
    aspect-ratio: 4/5;
    background-color: color-mix(var(--lexxy-attachment-icon-color), transparent 90%);
    block-size: 3lh;
    border: 2px solid var(--lexxy-attachment-icon-color);
    border-block-start-width: 1ch;
    border-radius: var(--lexxy-radius);
    box-sizing: border-box;
    color: var(--lexxy-attachment-icon-color);
    display: grid;
    font-size: var(--lexxy-text-small);
    font-weight: bold;
    inline-size: auto;
    place-content: center;
    text-transform: uppercase;
}

:where(.attachment--preview) {
    border-radius: var(--lexxy-radius);

    img, video {
        block-size: auto;
        display: block;
        margin-inline: auto;
        max-inline-size: 100%;
        user-select: none;
    }

    > a {
        display: block;
    }

    .attachment__caption {
        margin-block-start: 1ch;
    }
}

:where(.attachment--file) {
    --lexxy-attachment-icon-color: var(--lexxy-color-text-subtle);

    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 1ch;
    inline-size: auto;

    .attachment__caption {
        display: grid;
        flex: 1;
        text-align: start;
    }

    .attachment__name {
        color: var(--lexxy-color-ink);
        font-weight: bold;
    }
}

:where(
  .attachment--psd,
  .attachment--key,
  .attachment--sketch,
  .attachment--ai,
  .attachment--eps,
  .attachment--indd,
  .attachment--svg,
  .attachment--ppt,
  .attachment--pptx
) {
    --lexxy-attachment-icon-color: var(--lexxy-color-red);
}

:where(
  .attachment--css,
  .attachment--php,
  .attachment--json,
  .attachment--htm,
  .attachment--html,
  .attachment--rb,
  .attachment--erb,
  .attachment--ts,
  .attachment--js
) {
    --lexxy-attachment-icon-color: var(--lexxy-color-purple);
}

:where(
  .attachment--txt,
  .attachment--pages,
  .attachment--rtf,
  .attachment--md,
  .attachment--doc,
  .attachment--docx
) {
    --lexxy-attachment-icon-color: var(--lexxy-color-blue);
}

:where(
  .attachment--csv,
  .attachment--numbers,
  .attachment--xls,
  .attachment--xlsx
) {
    --lexxy-attachment-icon-color: var(--lexxy-color-green);
}

/* Horizontal divider */
:where(.horizontal-divider) {
    margin: 0;
    margin-block-end: .5em;
    padding: 1.5em 0 .5em;

    hr {
        border: 0;
        border-block-end: 1px solid currentColor;
        inline-size: 20%;
        margin: 0;
    }
}

/* Custom attachments such as mentions, etc. */
:where(action-text-attachment[content-type^="application/vnd.actiontext"]) {
    --lexxy-attachment-bg-color: transparent;
    --lexxy-attachment-image-size: 1em;
    --lexxy-attachment-text-color: currentColor;

    align-items: center;
    background: var(--lexxy-attachment-bg-color);
    border-radius: var(--lexxy-radius);
    box-shadow: -0.25ch 0 0 var(--lexxy-attachment-bg-color), 0.5ch 0 0 var(--lexxy-attachment-bg-color);
    color: var(--lexxy-attachment-text-color);
    display: inline-flex;
    gap: 0.25ch;
    margin: 0;
    padding: 0;
    position: relative;
    white-space: normal;

    img {
        block-size: var(--lexxy-attachment-image-size);
        border-radius: 50%;
        inline-size: var(--lexxy-attachment-image-size);
    }

    &.node--selected {
        --lexxy-attachment-bg-color: var(--lexxy-color-accent-dark);
        --lexxy-attachment-text-color: var(--lexxy-color-ink-inverted);
    }
}