soapbox/app/styles/chats.scss

.pane {
  box-shadow: 0 0 6px 0 rgba(0, 0, 0, 0.3);
  border-radius: 6px 6px 0 0;
  position: fixed;
  bottom: 0;
  right: 20px;
  width: 265px;
  height: 265px;
  max-height: calc(100vh - 70px);
  display: flex;
  flex-direction: column;
  z-index: 999;
  transition: 0.05s;

  &--main {
    height: calc(100vh - 70px);

    .pane__header .pane__title {
      font-size: 16px;
    }
  }

  &--minimized {
    height: 31px;
  }

  &__header {
    box-sizing: border-box;
    background: var(--brand-color);
    color: #fff;
    padding: 0 10px;
    font-weight: bold;
    border-radius: 6px 6px 0 0;
    display: flex;
    align-items: center;
    height: 31px;

    .account__avatar {
      margin-right: 7px;
    }

    .pane__title {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      flex: 1;
      height: 100%;
      background: transparent;
      border: 0;
      padding: 0;
      color: #fff;
      font-weight: bold;
      text-align: left;
      font-size: 14px;
    }

    .icon-button {
      color: #fff;

      > div {
        height: auto !important;
        width: auto !important;
        margin-right: -6px;
      }
    }

    .pane__close {
      margin-left: auto;
    }

    .icon-with-badge__badge {
      position: static;
      pointer-events: none;
      width: 18px;
      height: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-right: 7px;
    }
  }

  &__content {
    background: var(--foreground-color);
    display: flex;
    flex: 1;
    flex-direction: column;
    overflow: hidden;

    .chat-box {
      display: flex;
      flex: 1;
      flex-direction: column;
      overflow: hidden;
    }
  }
}

.chat-messages {
  overflow-y: scroll;
  flex: 1;
}

.chat-message {
  margin: 14px 10px;
  display: flex;

  &__bubble {
    font-size: 15px;
    padding: 4px 10px;
    max-width: 70%;
    border-radius: 10px;
    background-color: var(--background-color);
    overflow: hidden;
    text-overflow: ellipsis;
    overflow-wrap: break-word;
    white-space: break-spaces;

    a {
      color: var(--brand-color--hicontrast);
    }
  }

  &--me .chat-message__bubble {
    margin-left: auto;
    background-color: hsla(var(--brand-color_hsl), 0.2);
  }

  &--pending .chat-message__bubble {
    opacity: 0.5;
  }
}

.chat-list {
  overflow-y: auto;
  flex: 1;

  &__content {
    height: 100%;
  }

  .empty-column-indicator {
    height: 100%;
    box-sizing: border-box;
    background: transparent;
    align-items: start;
  }

  .account__display-name {
    position: relative;

    .display-name {
      display: flex;

      bdi {
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .display-name__account {
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        display: none;
      }
    }
  }

  .icon-with-badge__badge {
    top: 0;
    right: 0;
    left: auto;
    bottom: auto;
  }
}

.chat-box {
  .upload-progress {
    padding: 0 10px;
    align-items: center;
    height: 25px;

    .fa {
      font-size: 22px;
    }

    &__message {
      font-size: 13px;
      flex: 1;
      align-items: center;
    }

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

  &__attachment {
    display: flex;
    align-items: center;
    font-size: 13px;
    padding: 0 10px;
    height: 25px;

    .chat-box__remove-attachment {
      margin-left: auto;

      .icon-button > div {
        display: flex;
        align-items: center;
      }
    }
  }

  &__actions {
    background: var(--foreground-color);
    margin-top: auto;
    padding: 6px;
    position: relative;

    .icon-button {
      position: absolute;
      right: 10px;
      top: 8px;
      width: auto;
      height: auto;
      background: transparent !important;
      border: 0;
      padding: 0;
      margin: 0;
    }

    .chat-box__send .icon-button {
      top: 12px;
    }

    textarea {
      width: 100%;
      height: 100%;
      margin: 0;
      box-sizing: border-box;
      padding: 6px;
      padding-right: 25px;
      background: var(--background-color);
      border: 0;
      border-radius: 6px;
      color: var(--primary-text-color);
      font-size: 15px;
      overflow: hidden;
    }
  }
}

.ui--chatroom {
  padding-bottom: 0;

  .columns-area__panels__main .columns-area {
    height: calc(100vh - 100px);
    box-sizing: border-box;
    overflow: hidden;

    @media(max-width: 630px) {
      height: calc(100vh - 50px);
    }
  }

  .page {
    .chat-box {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      flex: 1;
      border-radius: 0 0 10px 10px;

      &__actions textarea {
        padding: 10px;
      }
    }
  }
}

@media(max-width: 630px) {
  .chat-panes {
    display: none;
  }
}

@media(min-width: 630px) {
  .tabs-bar .tabs-bar__link--chats {
    display: none;
  }
}

.chatroom__header {
  display: flex;
  margin-left: auto;
  padding-right: 15px;
  overflow: hidden;

  .account__avatar {
    margin-right: 7px;
  }

  .chatroom__title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    height: 100%;
    background: transparent;
    border: 0;
    padding: 0;
    color: var(--primary-text-color);
    font-weight: bold;
    text-align: left;
    font-size: 14px;
  }
}

.chatroom__back {
  display: flex;
  align-items: center;
  background: var(--accent-color--faint);
  border-radius: 10px 10px 0 0;

  .column-back-button {
    background: transparent;
  }
}

.chat {
  &__last-message {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;

    a {
      color: var(--highlight-text-color);
    }
  }
}

.chat-message .media-gallery {
  height: auto !important;
  margin: 4px 0 8px;

  .spoiler-button {
    display: none;
  }

  .media-gallery__item:not(.media-gallery__item--image) {
    max-width: 100%;
    width: 120px !important;
    height: 70px !important;
  }

  &__preview {
    background-color: transparent;
  }

  &__item-thumbnail img,
  &__item-thumbnail .still-image img {
    object-fit: contain;
  }
}