/* Chat tab: the message list (own scroll, newest at the bottom) and the composer
   below it. Buttons, avatars, Markdown and inputs come from communities.css. */

.communities-chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.communities-chat-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-block-size: 280px;
  max-block-size: min(68vh, 760px);
  margin: 0;
  padding: 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--theme-border-subtle);
  border-radius: var(--theme-radius-lg);
  background: var(--theme-bg-secondary);
  list-style: none;
}

.communities-chat-empty {
  margin-block: auto;
}

.communities-chat-older {
  display: flex;
  justify-content: center;
}

/* Unread divider */

.communities-chat-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--theme-color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.communities-chat-divider::before,
.communities-chat-divider::after {
  content: '';
  flex: 1 1 auto;
  block-size: 1px;
  background: currentColor;
  opacity: 0.45;
}

/* Message */

.communities-chat-message {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.communities-chat-message.is-mine {
  flex-direction: row-reverse;
}

.communities-chat-bubble {
  display: grid;
  gap: 6px;
  min-inline-size: 0;
  max-inline-size: calc(100% - 50px);
  padding: 10px 14px;
  border: 1px solid var(--theme-border-subtle);
  border-radius: var(--theme-radius-lg);
  border-start-start-radius: var(--theme-radius-sm);
  background: var(--theme-surface-raised);
  box-shadow: var(--theme-shadow-sm);
}

.communities-chat-message.is-mine .communities-chat-bubble {
  border-color: transparent;
  border-start-start-radius: var(--theme-radius-lg);
  border-start-end-radius: var(--theme-radius-sm);
  background: var(--site-primary-soft);
}

.communities-chat-message.is-editing .communities-chat-bubble {
  outline: 2px solid var(--theme-color-primary);
  outline-offset: 2px;
}

.communities-chat-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  font-size: 13px;
}

.communities-chat-author {
  color: var(--theme-text-primary);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.communities-chat-time,
.communities-chat-edited {
  color: var(--theme-text-tertiary);
}

.communities-chat-edited {
  font-style: italic;
}

.communities-chat-read {
  display: inline-flex;
  color: var(--theme-text-tertiary);
}

.communities-chat-read.is-unread {
  color: var(--theme-color-primary);
}

.communities-chat-actions {
  display: inline-flex;
  gap: 2px;
  margin-inline-start: auto;
}

.communities-chat-action {
  width: 30px;
  height: 30px;
}

.communities-chat-body {
  color: var(--theme-text-primary);
  font-size: 15px;
  line-height: 1.55;
}

/* Reactions */

.communities-chat-reactions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.communities-chat-reaction {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 2px 10px;
  border: 1px solid var(--theme-border-subtle);
  border-radius: var(--theme-radius-full);
  background: transparent;
  color: var(--theme-text-secondary);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.communities-chat-reaction:hover:not(:disabled) {
  border-color: var(--theme-color-primary);
  color: var(--theme-color-primary);
}

.communities-chat-reaction.is-active {
  border-color: var(--theme-color-primary);
  background: var(--site-primary-soft);
  color: var(--theme-color-primary);
}

.communities-chat-reaction:disabled {
  cursor: default;
  opacity: 0.7;
}

/* Composer */

.communities-chat-composer {
  display: grid;
  gap: 8px;
}

.communities-chat-editing {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-block: 6px;
  padding-inline: 14px 6px;
  border-radius: var(--theme-radius-md);
  background: var(--site-primary-soft);
  color: var(--theme-color-primary);
  font-size: 14px;
  font-weight: 600;
}

.communities-chat-editing[hidden] {
  display: none;
}

.communities-chat-editing-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.communities-chat-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.communities-chat-input {
  flex: 1 1 auto;
  min-inline-size: 0;
  min-block-size: 44px;
  max-block-size: 200px;
  line-height: 1.45;
  resize: none;
}

.communities-chat-send {
  flex: none;
  min-width: 44px;
  min-height: 44px;
  padding-inline: 12px;
}

.communities-chat-help {
  color: var(--theme-text-tertiary);
}

.communities-chat-notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.communities-chat-notice .communities-standing {
  flex: 1 1 280px;
}

@media (max-width: 600px) {
  .communities-chat-list {
    padding: 10px;
    max-block-size: 70vh;
  }

  .communities-chat-message {
    gap: 8px;
  }

  .communities-chat-message .communities-avatar {
    --communities-avatar-size: 32px !important;
  }

  .communities-chat-bubble {
    max-inline-size: calc(100% - 40px);
    padding: 8px 12px;
  }
}