@layer base {
  /* Attachments */
  action-text-attachment {
    display: contents;

    img {
      display: initial;

      &.external-inline {
        max-width: 100%;

        &:not([height]) {
          height: auto;
        }
      }
    }
  }

  .attachment {
    display: inline-block;
    padding: 0;

    a,
    a:hover,
    a:visited:hover {
      color: inherit;
      text-decoration: none;
    }
  }

  .attachment--preview:not(.attachment--remote) {
    width: 100%;
    text-align: center;
    margin: 0.625em 0;

    img {
      border: 1px solid var(--color-border);
      vertical-align: middle;
      width: auto;
      max-width: calc(100% - 2px) !important;
      max-height: 64rem;
    }
  }

  .attachment--lightboxable img {
    cursor: zoom-in;
  }

  .attachment.attachment--remote {
    display: inline;

    .attachment__caption {
      display: none;
    }
  }

  .attachment--file {
    &.attachment--linked,
    &.attachment--downloadable,
    action-text-attachment & {
      background-color: var(--color-bg--surface-glint);
      border-radius: 10px;
      position: relative;
      width: calc(100% / 4 - 10px);
      border: 0;
      padding: 0 !important;
      margin: 0 6px 6px 0 !important;
      min-width: 150px; /* Uses pixels to avoid font scaling factor breakage */
      max-width: 200px;

      .attachment__name {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        display: block;
      }

      &::before {
        content: "";
        display: block;
        padding-top: 45%;
      }

      &::after {
        background: url("/assets/icons/attachments/text-files-3de18e47.svg") center 1.5em / 25% no-repeat;
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
        right: 0;
        z-index: 0;
      }

      [data-color-scheme="dark"] & {
        &::after {
          background-image: url("/assets/icons/attachments/text-files-reverse-98788575.svg");
        }
      }

      &.attachment--jpg,
      &.attachment--jpeg,
      &.attachment--png,
      &.attachment--gif,
      &.attachment--psd {
        &::after { background-image: url("/assets/icons/attachments/images-1346058e.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/images-reverse-6850a029.svg"); }
        }
      }

      &.attachment--pdf {
        &::after { background-image: url("/assets/icons/attachments/pdfs-770c85af.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/pdfs-reverse-2044372c.svg"); }
        }
      }

      &.attachment--doc,
      &.attachment--docx,
      &.attachment--pages,
      &.attachment--txt,
      &.attachment--odt {
        &::after { background-image: url("/assets/icons/attachments/documents-8d1a51da.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/documents-reverse-9d480bc8.svg"); }
        }
      }

      &.attachment--csv,
      &.attachment--xls,
      &.attachment--xlsx,
      &.attachment--numbers,
      &.attachment--ods {
        &::after { background-image: url("/assets/icons/attachments/spreadsheets-d281f477.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/spreadsheets-reverse-b7f87f5a.svg"); }
        }
      }

      &.attachment--ppt,
      &.attachment--pptx,
      &.attachment--keynote,
      &.attachment--odp {
        &::after { background-image: url("/assets/icons/attachments/presentations-2b1f45a9.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/presentations-reverse-7001fa33.svg"); }
        }
      }

      &.attachment--mp4,
      &.attachment--mov,
      &.attachment--avi,
      &.attachment--mp3,
      &.attachment--m4v {
        &::after { background-image: url("/assets/icons/attachments/media-515be8c6.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/media-reverse-c78b46f9.svg"); }
        }
      }

      &.attachment--zip,
      &.attachment--rar {
        &::after { background-image: url("/assets/icons/attachments/zip-files-600aa33c.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/zip-files-reverse-df04b400.svg"); }
        }
      }

      &.attachment--ics {
        &::after { background-image: url("/assets/icons/attachments/calendar-invites-ee74786b.svg"); }

        [data-color-scheme="dark"] & {
          &::after { background-image: url("/assets/icons/attachments/calendar-invites-reverse-9150369e.svg"); }
        }
      }
    }
  }

  .attachment__caption {
    color: var(--color--txt);
    margin: 0.625em 1.25em;
    text-align: center;
    font-weight: 500;
    font-size: 0.875em;
    line-height: 1.2;

    @media (min-width: 40em) {
      font-size: 0.75em;
      line-height: 1.3;
    }

    .attachment__name,
    .attachment__source {
      display: block;
    }

    .attachment__name {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .attachment__source {
      font-weight: normal;
      max-height: 2.6em;
      padding-bottom: 0.2em;
      overflow-y: hidden;
    }

    .attachment__size {
      color: var(--color-txt--subtle-on-message-content);
      font-weight: normal;
    }

    .attachment--preview & {
      .attachment__name { display: inline; white-space: normal; }
      .attachment__name + .attachment__size::before { content: ' · '; }
    }

    .attachment--file & {
      .attachment__name + .attachment__size::before { content: ''; }
    }
  }

  .attachment__file-link {
    inset: 0;
    position: absolute;
    text-indent: -9999em;
    z-index: 1;
  }

  .attachment-gallery {
    display: flex;
    flex-wrap: wrap;
    position: relative;
    gap: 4px;

    .attachment {
      flex: 1 0 33%;
      margin: 0 0 1em;
      max-width: calc(33% - 10px);
    }

    &.attachment-gallery--2,
    &.attachment-gallery--4 {
      .attachment {
        flex-basis: 50%;
        max-width: calc(50% - 10px);
      }
    }
  }

  /* Base */

  /* We need the __body rule as we used to add this class to ingested emails */
  .trix-content > .__body, .trix-content > .__body-layout {
    overflow: visible !important;
    height: initial !important;
    min-height: 1rem;
  }

  * {
    /* CSS transitions can affect the email height. This can break our geometry
    * calculations with Javascript. See +MessageContentContext.performMeasurement+.
    * Not removing transitions completely because emails can rely on their final state
    * to look ok, so we just set a 0 duration for them. */
    transition-duration: 0s !important;
  }

  h1 {
    font-size: 1.3em;
    line-height: 1.2;
    margin: 0 0 0.5em;
  }

  ul,
  ol {
    margin: 0;
  }

  ul li,
  ol li,
  li li {
    padding: 0;
    margin: 0;
  }

  pre {
    display: inline-block;
    width: 100%;
    vertical-align: top;
    font-family: monospace;
    font-size: 0.9em;
    margin: 0;
    padding: 0.5em 2%;
    white-space: pre-wrap;
    background-color: var(--color-bg--surface);
    overflow-x: auto;
    border-radius: 4px;
    box-sizing: border-box;
  }

  a {
    color: var(--color-txt--action-on-message-content);

    /* Use foreground colors, if applied via color-picker */
    [style*="color"] {
      text-decoration: underline !important;
      text-decoration-color: unset !important;
    }
  }

  table {
    border-color: transparent;
  }

  hr {
    border: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .email_img {
    width: auto;
    max-width: 99%;
    border: 1px solid var(--color-border);
  }

  img:not([width]):not([height]) {
    min-width: 1px;
    min-height: 1px;
  }

  /* Fix instances where RTL characters are cut off */
  div[dir="rtl"] {
    line-height: normal;
  }

  /* Quotes */

  blockquote {
    margin: 0;
    padding-block: 0;
    padding-inline-end: 0;
    padding-inline-start: 0.66em;
    border-inline-start: 1px solid var(--color-border);
  }

  .hey-quote {
    summary {
      list-style: none;
      outline: none;
      cursor: pointer;

      @media print {
        display: none;
      }

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

      &:focus-visible::before {
        outline: none;
        box-shadow: 0 0 0 2px var(--color-focus-ring);
      }

      &::before {
        content: "Show quote";
        display: inline-flex;
        border-radius: 1.5rem;
        margin: 0.75em 0 2px 2px;
        width: 1.75rem;
        height: 1.75rem;
        background: url("/assets/icons/quote-0794c2a3.svg") center / 100% no-repeat;
        overflow: hidden;
        text-indent: -9999rem;
      }

      @media (min-width: 40em) {
        &::before {
          width: 1.5rem;
          height: 1.5rem;
        }
      }
    }

    &[open] > summary::before {
      margin-bottom: 1rem;
      background-image: url("/assets/icons/quote-open-6cf672b1.svg");
    }
  }

  /* Syntax highlighting */
  .highlight table td { padding: 5px; }
  .highlight table pre { margin: 0; }
  .highlight .cm {
    color: #999988;
    font-style: italic;
  }
  .highlight .cp {
    color: #999999;
    font-weight: bold;
  }
  .highlight .c1 {
    color: #999988;
    font-style: italic;
  }
  .highlight .cs {
    color: #999999;
    font-weight: bold;
    font-style: italic;
  }
  .highlight .c, .highlight .ch, .highlight .cd, .highlight .cpf {
    color: #999988;
    font-style: italic;
  }
  .highlight .err {
    color: #a61717;
    background-color: #e3d2d2;
  }
  .highlight .gd {
    color: #000000;
    background-color: #ffdddd;
  }
  .highlight .ge {
    color: #000000;
    font-style: italic;
  }
  .highlight .gr {
    color: #aa0000;
  }
  .highlight .gh {
    color: #999999;
  }
  .highlight .gi {
    color: #000000;
    background-color: #ddffdd;
  }
  .highlight .go {
    color: #888888;
  }
  .highlight .gp {
    color: #555555;
  }
  .highlight .gs {
    font-weight: bold;
  }
  .highlight .gu {
    color: #aaaaaa;
  }
  .highlight .gt {
    color: #aa0000;
  }
  .highlight .kc {
    color: #000000;
    font-weight: bold;
  }
  .highlight .kd {
    color: #000000;
    font-weight: bold;
  }
  .highlight .kn {
    color: #000000;
    font-weight: bold;
  }
  .highlight .kp {
    color: #000000;
    font-weight: bold;
  }
  .highlight .kr {
    color: #000000;
    font-weight: bold;
  }
  .highlight .kt {
    color: #445588;
    font-weight: bold;
  }
  .highlight .k, .highlight .kv {
    color: #000000;
    font-weight: bold;
  }
  .highlight .mf {
    color: #009999;
  }
  .highlight .mh {
    color: #009999;
  }
  .highlight .il {
    color: #009999;
  }
  .highlight .mi {
    color: #009999;
  }
  .highlight .mo {
    color: #009999;
  }
  .highlight .m, .highlight .mb, .highlight .mx {
    color: #009999;
  }
  .highlight .sa {
    color: #000000;
    font-weight: bold;
  }
  .highlight .sb {
    color: #d14;
  }
  .highlight .sc {
    color: #d14;
  }
  .highlight .sd {
    color: #d14;
  }
  .highlight .s2 {
    color: #d14;
  }
  .highlight .se {
    color: #d14;
  }
  .highlight .sh {
    color: #d14;
  }
  .highlight .si {
    color: #d14;
  }
  .highlight .sx {
    color: #d14;
  }
  .highlight .sr {
    color: #009926;
  }
  .highlight .s1 {
    color: #d14;
  }
  .highlight .ss {
    color: #990073;
  }
  .highlight .s, .highlight .dl {
    color: #d14;
  }
  .highlight .na {
    color: #008080;
  }
  .highlight .bp {
    color: #999999;
  }
  .highlight .nb {
    color: #0086B3;
  }
  .highlight .nc {
    color: #445588;
    font-weight: bold;
  }
  .highlight .no {
    color: #008080;
  }
  .highlight .nd {
    color: #3c5d5d;
    font-weight: bold;
  }
  .highlight .ni {
    color: #800080;
  }
  .highlight .ne {
    color: #990000;
    font-weight: bold;
  }
  .highlight .nf, .highlight .fm {
    color: #990000;
    font-weight: bold;
  }
  .highlight .nl {
    color: #990000;
    font-weight: bold;
  }
  .highlight .nn {
    color: #555555;
  }
  .highlight .nt {
    color: #000080;
  }
  .highlight .vc {
    color: #008080;
  }
  .highlight .vg {
    color: #008080;
  }
  .highlight .vi {
    color: #008080;
  }
  .highlight .nv, .highlight .vm {
    color: #008080;
  }
  .highlight .ow {
    color: #000000;
    font-weight: bold;
  }
  .highlight .o {
    color: #000000;
    font-weight: bold;
  }
  .highlight .w {
    color: #bbbbbb;
  }
  .highlight {
    color: var(--color-always-black);
    background-color: #f8f8f8;
  }

  /* Third party patches */
  /* CKeditor bug in Safari. See https://3.basecamp.com/2914079/buckets/27/card_tables/cards/7848395051 */
  .ck-content .table table {
    height: auto !important;
  }

  /* brevo.com. See https://3.basecamp.com/2914079/buckets/27/card_tables/cards/8115510298 */
  .nl2go-body-table table[width='900'] {
    width: 100% !important;
  }
}