@c8y/style/styles/components/data-input/_c8y-ai-chat.less

Styles for Cumulocity IoT applications

/**
 * C8Y AI Chat - AI chat widget component
 *
 * Note: Uses @size-* tokens for spacing and @font-size-* tokens for typography.
 *
 * Intentionally hardcoded values:
 * - Component-specific dimensions (400px): Minimum chat height
 * - Border radius (20px): Pill-shaped input and list items
 * - Border widths (1px): Standard borders
 * - Percentages (85%, 100%): Layout and width constraints
 * - Negative calc expressions: Complex computed heights
 * - Font-size em values (1.2em, 1.5em, 2em): Relative heading sizes
 * - Line-height values (1.7): Unitless ratio
 * - Z-index values: Stacking order
 */

c8y-widget-ai-chat-section{
  display: flex;
  max-height: calc(100vh - 400px);
  min-height: 400px;
  background-color: @component-background-default;
  border: 1px solid var(--c8y-root-component-border-color);
  border-radius: @size-base;
  padding: 0;
  .chat-input{
    border-bottom-left-radius: @size-base;
    border-bottom-right-radius: @size-base;
  }

}

c8y-agent-chat{
  width: 100%;
}

.chat-input{
  display: flex;
  width: 100%;
  flex-direction: column;
  gap: @size-8;
  padding: @size-16 @size-16 @size-4 @size-16;
  background-color: @component-background-default;
  border-top: 1px solid var(--c8y-root-component-border-color);
  margin-top: auto;
  position: sticky;
  bottom:0;
  .chat-input-group{
    position: relative;
    width: 100%;
    textarea{
      border-radius: 20px!important;
      min-height: @size-40;
      padding-top: @size-10;
      padding-right: @size-40;
      padding-bottom: @size-10;
      padding-left: @size-16;

      &::-webkit-scrollbar {
        width: unset; /* for vertical scrollbars */
        height: unset; /* for horizontal scrollbars */
      }

      &::-webkit-scrollbar-track {
        background: unset;
      }
      &::-webkit-scrollbar-thumb {
        width: unset;
        border-radius: unset;
        background: unset;
      }
      &:hover {
        &::-webkit-scrollbar-thumb {
          background: unset;
        }
      }
    }
    .chat-input-group-btn{
      position: absolute;
      right: @size-4;
      bottom: @size-4;
      .btn-dot{
        margin: 0!important;
        height: @form-control-height-base!important;
        border-radius: 50%;
      }
    }
  }
}

.chat-message {
  line-height: 1.7;
  .message-content{
    overflow-wrap: break-word;
    word-break: break-word;
    max-width: 100%;
    min-width: 0;
    p{
      margin-bottom: @size-8;
      &:last-child {
        margin-bottom: 0;
      }
    }
  }
}

.agent-message {
  align-self: flex-start;
  min-width: 0;
  width: 100%;
  margin-top: @size-16;
  padding: @size-16 @size-24 @size-16 @size-16;
  h1{
    margin-top: @size-24;
    margin-bottom: @size-16;
    font-size: 2em;
    font-weight: 600;
  }
  h2{
    margin-top: @size-24;
    margin-bottom: @size-16;
    font-size: 1.5em;
    font-weight: 600;
  }
  h3{
    margin-top: @size-16;
    margin-bottom: @size-16;
    font-size: 1.2em;
    font-weight: 600;
  }
}

.user-message {
  background-color: var(--c8y-brand-70);
  color: var(--c8y-palette-low);
  align-self: flex-end;
  border-radius: @size-base;
  max-width: 85%;
  min-width: 0;
  padding: @size-base @size-16;
  order: 2;
}

.message-action {
  display: flex;
  align-items: center;
  gap: @size-base;
  padding: @size-base 0 @size-16 0;
  &:empty{
    display: none;
  }
  &.user-action {
    display: inline-block;
    align-self: flex-end;
    width: auto;
    padding: 0;
    margin-top: 0;
    margin-right: 0;
    order: 1;

  }
  &.agent-action {
    justify-content: flex-start;
    border-top: 1px dashed var(--c8y-root-component-border-color);
  }

  .btn-dot{
    margin: 0!important;
    height: @form-control-height-base!important;
    border-radius: 50%!important;
  }
}

.message-timestamp{
  display: block;
  font-size: @font-size-xs;
  color: var(--c8y-text-muted);
  .user-message &{
    text-align: right;
  }
}


.agent-step-feedback {
  .c8y-list__group{
    border-radius: 20px!important;
    overflow: hidden;
    border: 1px solid var(--c8y-root-component-border-color);
    .c8y-list__item{
      box-shadow: none;
    }
    .collapse-btn{
      &, &:hover, &:focus{
        border-top-right-radius: 20px!important;
        border-bottom-right-radius: 20px!important;
      }
    }
  }
  .c8y-list__item.selectable.active{
    color: @component-color-text-muted;
  }
  .c8y-list__item__actions, .c8y-list__item__icon{
    height: @size-40;
    padding-top: 0!important;
    padding-bottom: 0!important;
  }
  .c8y-list__item.selectable.active .c8y-list__item__body:after{
    float: none;
    color: @component-brand-primary;
  }
}