.message-area {
  display: contents;

  &:has(.message) {
    .message-area--empty {
      display: none;
    }
  }

  &:not(:has(.message)) {
    --opacity: 0.2;

    display: grid;
    place-content: center stretch;
    place-items: center center;
    block-size: calc(100dvh - var(--navbar-height) - var(--footer-height));

    > * {
      grid-area: 1/1;
    }

    .message-area--empty > figure img {
      inline-size: 30dvw;
      max-block-size: 30dvh;
    }
  }
}

#system_welcome {
  --avatar-size: 8ch;

  margin-block-start: 10ch;

  .avatar {
    margin-block-start: -5ch;
  }

  .invite-label,
  .btn--regenerate {
    display: none;
  }
}

.message-area__return-to-latest {
  position: absolute;
  bottom: var(--footer-height);
  left: calc(50% - calc(var(--btn-image-size) / 2));
  animation: pulsing-glow 2s infinite both;
}

@keyframes pulsing-glow {
  0% { box-shadow: 0 0 0 0 var(--color-text); }
  33% { box-shadow: 0 0 3px 5px var(--color-text); }
}

.messages {
  --message-space: 1.33em;
  --message-row-gap: 0.1em;
  --message-column-gap: 0.66ch;

  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-auto-rows: min-content;
  row-gap: var(--message-space);
  position: relative;
  overscroll-behavior: contain;

  @media (max-width: 100ch) {
    padding-block-start: var(--navbar-height);
  }
}

.message {
  display: grid;
  grid-template-areas:
    "sep sep sep"
    "avatar body body";
  grid-auto-rows: min-content;
  grid-auto-columns: 2ch 1fr min-content;
  column-gap: var(--message-column-gap);
  row-gap: var(--message-row-gap);
  padding-inline: calc(var(--inline-space) + 1vw);
  position: relative;
  z-index: 0;
  visibility: hidden;

  + .message--threaded {
    margin-block-start: calc((var(--message-space) + (var(--message-row-gap) * 2) - 2px) * -1);
  }

  &.message--formatted {
    visibility: visible;
  }

  .message__boost-inline {
    display: none;
  }

  &:has(.boost-item) {
    .btn:is(.message__boost-btn) {
      display: none;
    }

    .message__boost-inline {
      display: inline-flex;
    }
  }
}

.message__day-separator {
  grid-area: sep;
  display: none;
  visibility: hidden;
  margin-block: var(--message-space);
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  text-align: center;
  width: 100%;
  font-size: 0.8rem;
  text-transform: uppercase;

  & time,
  & span {
    padding: 0.66em 2.33ch;
    background-color: var(--color-message-background);
    border-radius: 3em;
  }

  &::after,
  &::before {
    content: '';
    border-top: 2px solid var(--color-message-background);
  }

  .message--first-of-day & {
    display: grid;
    visibility: visible;
  }
}

.message__avatar {
  --avatar-size: 3.5ch;
  --avatar-border-size: 1px;

  grid-area: avatar;
  margin-block-start: 0.33rem;
  z-index: 1;
  box-shadow: 0 0 0 2px color(display-p3 var(--rgb-white));
}

.message__meta {
  display: flex;
  align-items: center;
  justify-content: start;
  column-gap: var(--message-column-gap);
  font-weight: 400;
  font-size: 0.8rem;
  min-width: 0;

  .message__room {
    display: none;
    visibility: hidden;
  }
}

.message__author {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

.message__permalink {
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  opacity: 0.5;
}

.message__body {
  grid-area: body;
  max-inline-size: min(80ch, 85%);
  display: flex;
  column-gap: 0.5ch;
  position: relative;

  .message--me & {
    flex-direction: row-reverse;
  }

  @media (max-width: 100ch) {
    max-inline-size: calc(100% - 2.125em);
  }
}

.message__body-content {
  inline-size: fit-content;
  margin-block-end: var(--message-row-gap);
  padding: 0.66rem 1.5ch;
  background-color: var(--message-background, var(--color-message-background));
  color: var(--message-color, var(--color-text));
  border-radius: 0.66em;
  word-break: break-word;
  font-weight: 400;

  &:has(.message__attachment) {
    padding: 0;
    overflow: hidden;
    margin-bottom: 0.33em;

    &:has(.boost) {
      padding-block-end: var(--block-space--half);

      .boosts {
        padding-inline: var(--inline-space);
      }
    }

    .message__meta {
      padding: 0.66rem 1.5ch;
    }
  }

  &:has(img),
  &:has(video) {
    max-inline-size: 100%;
  }
}

.message__attachment {
  height: auto;
  border-radius: 0.66em;
  border: 1px solid var(--color-border);

  .message__body-content:has(.boost) & {
    border-end-start-radius: 0;
    border-end-end-radius: 0;
  }

  .message:not(.message--threaded) & {
    border-start-end-radius: 0;
    border-start-start-radius: 0;
  }
}

img.message__attachment {
  cursor: zoom-in;
}

.message__actions {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  justify-content: start;

  @media (any-hover: hover) {
    opacity: 0;
    transition: opacity 300ms ease-in-out both;

    .message:hover & {
      opacity: 1;
    }

    .message__options-btn {
      display: none;
    }

    .message__edit-btn {
      display: none;

      .admin &,
      .message--me & {
        display: inline-flex;
      }
    }
  }

  @media (any-hover: none) {
    .message__action-btn:where(:not(.message__options-btn)) {
      display: none;
    }
  }

  &.message__actions--open {
    .message__action-btn {
      opacity: 1;

      &:where(:not(.message__options-btn):not(.message__edit-btn)) {
        display: inline-flex;
      }
    }

    .message__edit-btn {
      .admin &,
      .message--me & {
        display: inline-flex;
      }
    }
  }
}

.message__action-btn {
  --btn-focus-inner: var(--color-bg);
  --outline-color: var(--color-text);
  --btn-focus-outer: var(--color-text);
  --btn-border-color: transparent;

  background-color: var(--color-bg);
  opacity: 0.33;
  font-size: 0.8rem;

  @media (any-hover: hover) {
    &:hover {
      opacity: 1;
    }
  }
}

.message--me {
  grid-template-areas:
    "sep sep sep"
    "body body avatar";
  grid-auto-columns: min-content 1fr 2ch;

  .message__body,
  .message__meta {
    justify-self: end;
  }

  .message__meta {
    flex-direction: row-reverse;
    justify-content: end;
  }

  .message__avatar {
    margin-inline: -1.5ch 0;
  }

  .message__actions {
    justify-content: end;
  }
}

.message--mentioned {
  .message__body-content {
    --message-background: color(display-p3 var(--rgb-red) / 0.1 );

    animation: wiggle 0.4s both;

    @media (prefers-color-scheme: dark) {
      --message-background: color(display-p3 var(--rgb-red) / 0.2 );
    }
  }
}

.message--threaded {
  .message__meta,
  .message__avatar {
    display: none;
  }
}

.message__edit-btns div:only-of-type {
  margin-inline: auto;
}

@keyframes wiggle {
  0% { transform: rotate(0deg); }
  20% { transform: rotate(3deg); }
  40% { transform: rotate(-3deg); }
  60% { transform: rotate(3deg); }
  80% { transform: rotate(-3deg); }
  100% { transform: rotate(0deg); }
}

.message--emoji:not(:has(form)) {
  .message__body-content {
    --message-background: transparent;

    font-size: 2.4em;
    line-height: 1.4;
    padding: 0 0.66rem;
    margin-block-end: 0;
    text-shadow: 0 0 3px var(--color-text--reversed);

    .message--me & {
      padding-inline-start: 0;
    }
  }
}

.message.search-highlight {
  .message__body-content {
    border: 2px solid var(--color-text);
  }
}