/* The Rooms, DMs, Threads and Members circles at the top of the menu, and the list each one shows */
/* The circles share the row evenly, and shrink a little when the menu column is narrow */
.sidebar-lists__tabs {
  container-type: inline-size;
  grid-auto-columns: minmax(0, 1fr);
}

.sidebar-lists__tab {
  cursor: pointer;
  min-inline-size: 0;

  .avatar {
    --avatar-size: 3.1rem;

    margin-inline: 0;
    max-inline-size: 100%;
  }

  @container (max-width: 270px) {
    .direct__author {
      font-size: 0.68rem;
    }
  }

  &[aria-expanded="true"] {
    .avatar--icon {
      box-shadow: 0 0 0 2px var(--color-text);
    }

    .direct__author {
      font-weight: 800;
    }
  }
}

/* A red dot on a circle when something in its list is unread */
.sidebar__container:has(#shared_rooms .unread) .sidebar-lists__tab[data-name="rooms"],
.sidebar__container:has(#direct_rooms .unread) .sidebar-lists__tab[data-name="dms"],
.sidebar__container:has(#thread_rows .unread) .sidebar-lists__tab[data-name="threads"] {
  .avatar--icon::after {
    --size: 0.8em;

    background-color: var(--color-negative);
    block-size: var(--size);
    border: 2px solid var(--color-bg);
    border-radius: 50%;
    content: "";
    inline-size: var(--size);
    inset: -0.1em -0.1em auto auto;
    position: absolute;
  }
}

.sidebar-lists__panel {
  margin-block-end: var(--block-space);
  padding-inline: var(--sidebar-inline-space);
}

.sidebar-lists__new {
  gap: 0.4em;
  margin-block-end: var(--block-space-half);
}

.sidebar-lists__empty {
  color: var(--color-border-darker);
  margin-block: var(--block-space-half);

  .sidebar-lists__rows:has(> *) + & {
    display: none;
  }
}

.sidebar-lists__count {
  color: var(--color-border-darker);
  margin-block: var(--block-space-half) 0;
  text-align: center;
}

/* DMs and Threads: one per row, picture on the left */
.sidebar-lists__rows {
  display: flex;
  flex-direction: column;

  .direct {
    align-items: center;
    column-gap: var(--inline-space);
    grid-template-columns: auto minmax(0, 1fr);
    justify-items: start;
    padding-block: 0.4em;
  }

  .direct__author {
    font-size: 0.9rem;
    margin: 0;

    .unread &::after {
      inset: auto;
      margin-inline-start: 0.5em;
      position: static;
      transform: none;
    }
  }

  :is(.direct, .thread-row) > .avatar,
  :is(.direct, .thread-row) > .avatar__group {
    --avatar-size: 2.6rem;

    margin-inline: 0;
  }

  :is(.direct, .thread-row) > .avatar__group {
    --avatar-size: 1.25rem;

    block-size: 2.6rem;
    inline-size: 2.6rem;
  }
}

.thread-row {
  align-items: start;
  border-block-end: 1px solid var(--color-border);
  color: var(--color-text);
  column-gap: var(--inline-space);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  padding-block: 0.55em;
  text-decoration: none;

  &:last-child {
    border-block-end: 0;
  }
}

.thread-row__text {
  display: flex;
  flex-direction: column;
  gap: 0.1em;
}

.thread-row__room,
.thread-row__meta {
  color: var(--color-border-darker);
  font-size: 0.75rem;
}

.thread-row__opening {
  font-size: 0.9rem;
}

.thread-row.unread {
  .thread-row__opening,
  .thread-row__meta {
    color: var(--color-text);
    font-weight: 800;
  }

  .thread-row__meta::after {
    background-color: var(--color-text);
    block-size: 0.55em;
    border-radius: 50%;
    content: "";
    display: inline-block;
    inline-size: 0.55em;
    margin-inline-start: 0.5em;
  }
}

/* Members: everyone, A to Z */
.sidebar-lists__members {
  display: grid;
  gap: var(--block-space) var(--inline-space-half);
  grid-template-columns: repeat(auto-fill, minmax(4.2rem, 1fr));
}

.sidebar-lists__member {
  color: var(--color-text);
  display: grid;
  gap: 0.25em;
  justify-items: center;
  min-inline-size: 0;
  text-decoration: none;

  .avatar {
    --avatar-size: 2.8rem;
  }

  > span:last-child {
    max-inline-size: 100%;
  }
}

/* Where something new is: unread rooms, DMs and threads carry the same red dot as the circles
   (and the app's icon), so the bold alone doesn't have to tell you */
#shared_rooms .room.unread::after,
.sidebar-lists__rows .direct.unread .direct__author::after,
.thread-row.unread .thread-row__meta::after {
  background-color: var(--color-negative);
}

#shared_rooms .room.unread::after {
  --size: 0.6em;

  block-size: var(--size);
  border-radius: 50%;
  content: "";
  flex-shrink: 0;
  inline-size: var(--size);
}