.message-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
}

.message-row {
  position: relative;
  display: flex;
  gap: var(--sp-2);
  padding: 1px var(--sp-2);
  border-radius: 6px;
}

.message-row-start {
  margin-top: 10px;
}

.message-row:hover {
  background: var(--ds-surface);
}

.message-avatar-slot {
  width: 36px;
  flex: none;
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}

.message-author {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ds-text);
}

.message-time {
  font-size: 0.68rem;
  color: var(--ds-muted);
  font-family: var(--mono);
}

.message-image {
  display: block;
  /* #71: rem, not px -- scales with the text-size setting (see
     lib/theme.ts's applyTextScale), same as every other size in this app.
     min(...) still caps against the viewport in absolute px, since a
     percentage-of-viewport constraint isn't something a root font-size
     change should affect. */
  max-width: min(20rem, 100%);
  max-height: 15rem;
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--ds-border);
  cursor: zoom-in;
  margin-bottom: 4px;
}

.message-video-wrap {
  position: relative;
  display: inline-block;
  max-width: min(20rem, 100%);
  margin-bottom: 4px;
}

.message-video {
  display: block;
  width: 100%;
  max-height: 15rem;
  border-radius: var(--radius);
  border: 1px solid var(--ds-border);
  background: var(--ds-void);
}

.message-video-expand {
  position: absolute;
  top: 6px;
  right: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5px;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.message-video-wrap:hover .message-video-expand,
.message-video-expand:focus-visible {
  opacity: 1;
}

.message-file-attachment {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin-bottom: 4px;
  color: var(--ds-text);
  text-decoration: none;
  max-width: min(20rem, 100%);
}

.message-file-attachment:hover {
  border-color: var(--ds-accent);
}

.message-file-attachment svg {
  flex: none;
  color: var(--ds-muted);
}

.message-file-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.message-file-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.message-file-size {
  font-size: 0.72rem;
  color: var(--ds-muted);
  font-family: var(--mono);
}

.message-text {
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--ds-text);
  word-break: break-word;
}

.message-text p {
  margin: 0 0 0.4em;
}

.message-text p:last-child {
  margin-bottom: 0;
}

.message-mention {
  background: color-mix(in srgb, var(--ds-highlight) 18%, transparent);
  color: var(--ds-highlight);
  border-radius: 5px;
  padding: 0 4px;
  font-weight: 700;
}

.message-room-reference {
  background: color-mix(in srgb, var(--ds-accent) 18%, transparent);
  color: var(--ds-accent);
  border-radius: 5px;
  padding: 0 4px;
  font-weight: 700;
  text-decoration: none;
}

.message-room-reference:hover {
  text-decoration: underline;
}

.message-text code {
  background: var(--ds-surface-2);
  padding: 1px 5px;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 0.85em;
}

.message-text pre {
  background: var(--ds-surface-2);
  padding: 8px 10px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.3em 0;
}

.message-text pre code {
  background: none;
  padding: 0;
  font-size: 0.82em;
}

.message-text blockquote {
  border-left: 3px solid var(--ds-border);
  margin: 0.3em 0;
  padding: 0 0.7em;
  color: var(--ds-muted);
}

.message-text ul,
.message-text ol {
  margin: 0.2em 0;
  padding-left: 1.3em;
}

.message-text a {
  color: var(--ds-accent);
  word-break: break-all;
}

.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4,
.message-text h5,
.message-text h6 {
  font-weight: 700;
  margin: 0.3em 0;
  line-height: 1.3;
}

/* Capped well below normal HTML heading sizes so a heading in chat doesn't
   dwarf the message row, but each level still steps down from the last so
   the hierarchy stays visible. */
.message-text h1 {
  font-size: 1.3em;
}

.message-text h2 {
  font-size: 1.2em;
}

.message-text h3 {
  font-size: 1.1em;
}

.message-text h4 {
  font-size: 1.02em;
}

.message-text h5 {
  font-size: 0.95em;
}

.message-text h6 {
  font-size: 0.88em;
  color: var(--ds-muted);
}

.message-text table {
  border-collapse: collapse;
  margin: 0.3em 0;
  font-size: 0.85em;
  max-width: 100%;
  overflow-x: auto;
}

.message-text th,
.message-text td {
  border: 1px solid var(--ds-border);
  padding: 4px 8px;
  text-align: left;
}

.message-text th {
  background: var(--ds-surface-2);
  font-weight: 700;
}

.message-text mark {
  background: color-mix(in srgb, var(--ds-accent) 35%, transparent);
  color: var(--ds-text);
  padding: 0 2px;
  border-radius: 3px;
}

.message-text li:has(> input[type='checkbox']) {
  list-style: none;
  margin-left: -1.3em;
}

.message-text input[type='checkbox'] {
  accent-color: var(--ds-accent);
  margin-right: 4px;
  vertical-align: middle;
}

.message-text footer {
  margin-top: 0.4em;
  padding-top: 0.3em;
  border-top: 1px solid var(--ds-border);
  font-size: 0.8em;
  color: var(--ds-muted);
}

.message-text footer div {
  margin: 2px 0;
}

.message-edited {
  font-style: italic;
  color: var(--ds-muted);
  font-size: 0.78rem;
}

.message-row-actions {
  display: none;
  position: absolute;
  top: 2px;
  right: var(--sp-2);
  align-items: center;
  gap: 4px;
}

.message-row:hover .message-row-actions {
  display: flex;
}

.message-edit-link {
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border);
  color: var(--ds-muted);
  font-size: 0.68rem;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 6px;
}

.message-edit-link:hover {
  color: var(--ds-text);
  border-color: var(--ds-accent);
}

.message-delete-link {
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border);
  color: var(--ds-muted);
  font-size: 0.68rem;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 6px;
}

.message-delete-link:hover {
  color: var(--ds-danger);
  border-color: var(--ds-danger);
}

.message-deleted-text {
  color: var(--ds-muted);
}

.message-reaction-wrap {
  position: relative;
}

.message-reaction-trigger {
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border);
  color: var(--ds-muted);
  font-size: 0.78rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}

.message-reaction-trigger:hover {
  border-color: var(--ds-accent);
}

.message-reaction-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.message-reaction-pill {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border);
  border-radius: var(--radius-pill);
  color: var(--ds-muted);
  font-size: 0.76rem;
  padding: 2px 8px;
  cursor: pointer;
}

.message-reaction-pill:hover {
  border-color: var(--ds-accent);
}

.message-reaction-pill-mine {
  border-color: var(--ds-accent);
  color: var(--ds-text);
}

.message-edit-input {
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-accent);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.88rem;
  color: var(--ds-text);
  font-family: var(--sans);
  width: 100%;
  resize: vertical;
}