fizzy/app/assets/stylesheets/house.css

/* 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);
  border-radius: 0;
  color: currentColor;
  display: inline-flex;
  font-size: inherit;
  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 {
  caret-color: var(--color-link);
  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: var(--color-ink);
    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);
  }
}