fizzy/app/assets/stylesheets/house.css

@layer components {
  /* Editor */
  house-md {
    display: flex;
    flex-direction: column;
    flex-grow: 1;

    &:invalid {
      border: var(--color-negative) 2px solid;
    }
  }

  /* Toolbar */
  house-md-toolbar {
    background-color: inherit;
    border-block-end: 1px solid var(--color-subtle-dark);
    border-radius: 0;
    color: currentColor;
    display: inline-flex;
    font-size: inherit;
    max-inline-size: 100%;
    overflow-x: auto;
    padding: 0.2em;

    button, label {
      aspect-ratio: 4/3;
      appearance: none;
      background-color: transparent;
      block-size: 2em;
      border: none;
      border-radius: 0.5em;
      color: currentColor;
      cursor: pointer;
      display: grid;
      font-size: inherit;
      inline-size: auto;
      place-items: center;
      transition: background-color 300ms ease;

      svg {
        -webkit-touch-callout: none;
        block-size: 0.9em;
        fill: currentColor;
        grid-area: 1/1;
        inline-size: auto;
        user-select: none;
      }

      &:is(:focus, :hover) {
        background-color: var(--color-subtle);
      }

      &:is(:active) {
        background-color: var(--color-selected);
      }
    }
  }

  /* Markdown Content */
  .house-md-content {
    flex-grow: 1;
    font-family: var(--font-sans);
    text-align: left;
    white-space: break-spaces;
    padding: 1rem;

    &.house-md-content-empty::before {
      content: attr(placeholder);
      color: currentColor;
      opacity: 0.5;
      pointer-events: none;
      display: block;
    }

    &:active,
    &:focus {
      border: none;
      outline: none;
    }

    .link, .img {
      color: var(--color-link);
      text-decoration: underline;
    }
  }

  /* Uploads */
  house-md-upload {
    border-radius: 0.5em;
    margin-block: 0.5ex;
    position: relative;

    &[status="failed"] {
      background-color: var(--color-negative);
      color: var(--color-ink-reversed);
      font-weight: bold;
      padding: 0.5em;
    }
  }

  .md-close {
    appearance: none;
    display: none;
    inline-size: 1em;
    block-size: 1em;
    border: none;
    outline: none;
    background-color: transparent;
    position: absolute;
    inset: 0.5em 0.5em auto auto;
    cursor: pointer;

    house-md-upload[status="failed"] & {
      color: var(--color-ink-reversed);
      display: inline-block;
    }

    &::before {
      content: '×';
      color: var(--color-ink-reversed);
      font-size: 24px;
      font-weight: bold;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
    }
  }

  .md-file {
    font-weight: normal;

    house-md-upload[status="complete"] & {
      color: var(--color-positive);
    }
  }

  .md-progress-bar {
    -webkit-appearance: none;
    appearance: none;
    background-color: var(--color-subtle);
    border-radius: 0.5em;
    block-size: 1ex;
    display: block;
    inline-size: 100%;
    line-height: inherit;
    margin: 0;

    house-md-upload[status="failed"] & ,
    house-md-upload[status="complete"] &{
      display: none;
    }

    &::-webkit-progress-bar {
      border-radius: 0.5em;
      background-color: var(--color-subtle);
    }

    &::-webkit-progress-inner-element {
      border-radius: 0.5em;
    }

    &::-webkit-progress-value {
      border-radius: 0.5em;
      background-color: var(--color-positive);
    }

    &::-moz-progress-bar {
      border-radius: 0.5em;
      background-color: var(--color-positive);
    }
  }
}