/* CHAT ROOM */

.chat-room {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  background: var(--light-background);
}

/* The log scrolls, the composer does not. A fixed height rather than a growing
   page is what lets the island keep the newest message in view without moving
   the thing the reader is typing into. */
.chat-log {
  list-style: none;
  margin: 0;
  padding: 0.5rem;
  height: 60vh;
  min-height: 15rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chat-message {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.25rem 0.35rem;
  line-height: 1.45;
}

.chat-message:hover {
  background: var(--surface-alt);
}

.chat-avatar {
  align-self: center;
  border-radius: 50%;
  flex-shrink: 0;
}

.chat-author {
  font-weight: bold;
  color: var(--detail);
  white-space: nowrap;
}

.chat-time {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.chat-body {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
}

/* Sent, not yet echoed back by the server. Dimmed rather than hidden: the
   message is on screen the instant it is typed, and the dimming is the only
   thing saying it is not confirmed. */
.chat-message.is-pending {
  opacity: 0.55;
}

.chat-message.is-failed {
  opacity: 1;
  border-left: 2px solid var(--danger);
}

/* Someone named this reader. A tint and a rule rather than anything louder:
   chat scrolls, the highlight has to survive being one of forty messages, and
   there is deliberately no notification behind it. */
.chat-message.is-mention {
  background: var(--surface-alt);
  border-left: 2px solid var(--highlight);
}

.chat-error {
  color: var(--danger);
  font-size: 0.85rem;
}

/* Delete, and the retry on a failed send. Both stay out of the way until the
   message is under the pointer, and both are always reachable by keyboard. */
.chat-remove,
.chat-retry {
  background: none;
  border: 1px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  padding: 0 0.3rem;
}

.chat-remove {
  opacity: 0;
  margin-left: auto;
}

.chat-message:hover .chat-remove,
.chat-remove:focus-visible {
  opacity: 1;
}

.chat-remove:hover,
.chat-retry:hover {
  color: var(--danger);
  border-color: var(--border);
}

.chat-status {
  margin: 0;
  padding: 0.35rem 0.6rem;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.chat-composer {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  border-top: 1px solid var(--border);
}

.chat-composer input[type="text"] {
  flex: 1;
  min-width: 0;
  background: var(--input-background);
  border: 1px solid var(--border);
  color: var(--detail);
  padding: 0.45rem 0.6rem;
}

.chat-notice {
  padding: 0.6rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}