akkoma-fe/src/components/chat/chat.scss

.chat-view {
  display: flex;
  height: 100%;

  .chat-view-inner {
    height: auto;
    width: 100%;
    overflow: visible;
    display: flex;
  }

  .chat-view-body {
    background-color: var(--chatBg, $fallback--bg);
    display: flex;
    flex-direction: column;
    width: 100%;
    overflow: visible;
    min-height: 100%;
    margin: 0 0 0 0;
    border-radius: 10px 10px 0 0;
    border-radius: var(--panelRadius, 10px) var(--panelRadius, 10px) 0 0;

    &::after {
      border-radius: 0;
    }
  }

  .message-list {
    padding: 0 0.8em;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .footer {
    position: sticky;
    bottom: 0;
    background-color: $fallback--bg;
    background-color: var(--bg, $fallback--bg);
    z-index: 10;
  }

  .chat-view-heading {
    align-items: center;
    justify-content: space-between;
    display: flex;
    z-index: 2;
    position: sticky;
    overflow: hidden;
  }

  .go-back-button {
    cursor: pointer;
    width: 28px;
    text-align: center;
    padding: 0.6em;
    margin: -0.6em 0.6em -0.6em -0.6em;
  }

  .jump-to-bottom-button {
    width: 2.5em;
    height: 2.5em;
    border-radius: 100%;
    position: absolute;
    right: 1.3em;
    top: -3.2em;
    background-color: $fallback--fg;
    background-color: var(--btn, $fallback--fg);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.3);
    z-index: 10;
    transition: 0.35s all;
    transition-timing-function: cubic-bezier(0, 1, 0.5, 1);
    opacity: 0;
    visibility: hidden;
    cursor: pointer;

    &.visible {
      opacity: 1;
      visibility: visible;
    }

    i {
      font-size: 1em;
      color: $fallback--text;
      color: var(--text, $fallback--text);
    }

    .unread-message-count {
      font-size: 0.8em;
      left: 50%;
      margin-top: -1rem;
      padding: 0.1em;
      border-radius: 50px;
      position: absolute;
    }

    .chat-loading-error {
      width: 100%;
      display: flex;
      align-items: flex-end;
      height: 100%;

      .error {
        width: 100%;
      }
    }
  }

  @media all and (max-width: 800px) {
    height: 100%;
    overflow: hidden;

    .chat-view-inner {
      overflow: hidden;
      height: 100%;
      margin-top: 0;
      margin-left: 0;
      margin-right: 0;
    }

    .chat-view-body {
      display: flex;
      min-height: auto;
      overflow: hidden;
      height: 100%;
      margin: 0;
      border-radius: 0;
    }

    .chat-view-heading {
      box-sizing: border-box;
      position: static;
      z-index: 9999;
      top: 0;
      margin-top: 0;
      border-radius: 0;

      /* This practically overlays the panel heading color over panel background
       * color. This is needed because we allow transparent panel background and
       * it doesn't work well in this "disjointed panel header" case
       */
      background:
        linear-gradient(to top, var(--panel), var(--panel)),
        linear-gradient(to top, var(--bg), var(--bg));
      height: 50px;
    }

    .scrollable-message-list {
      display: unset;
      overflow-y: scroll;
      overflow-x: hidden;
      -webkit-overflow-scrolling: touch;
    }

    .footer {
      position: sticky;
      bottom: auto;
    }
  }
}