/* Direct and group messaging only. Keep the shell inside the visible viewport
   so the message list is the sole scrolling region while the composer stays put. */
body.chat-page {
  height: 100vh;
  height: var(--chat-viewport-height, 100dvh);
  min-height: 0;
  overflow: hidden;
  overscroll-behavior: none;
}

.chat-page .chat-main {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  min-height: 0;
  padding: clamp(8px, 1.6vw, 20px) clamp(10px, 2.4vw, 32px) max(10px, env(safe-area-inset-bottom));
}

.chat-page .chat-shell {
  width: min(1160px, 100%);
  height: auto;
  min-height: 0;
  flex: 1 1 0;
  margin-inline: auto;
  border-radius: 22px;
  box-shadow: 0 18px 55px rgba(0, 0, 0, .2);
}

.chat-page .chat-header {
  z-index: 2;
  min-height: 66px;
  padding: 11px 16px;
  backdrop-filter: blur(16px);
}

.chat-page .chat-back,
.chat-page .chat-header-action {
  transition: background-color .16s ease, color .16s ease, transform .16s ease;
}

.chat-page .chat-back:hover,
.chat-page .chat-header-action:hover {
  transform: translateY(-1px);
}

.chat-page .chat-title strong {
  font-size: 15px;
  letter-spacing: -.1px;
}

.chat-page .chat-scroll {
  flex: 1 1 0;
  min-height: 0;
  padding: 18px clamp(14px, 3vw, 32px) 12px;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.chat-page .chat-messages {
  gap: 8px;
}

.chat-page .chat-msg {
  scroll-margin-block: 20px;
}

.chat-page .chat-msg-main {
  max-width: min(78%, 720px);
}

.chat-page .chat-bubble {
  padding: 10px 15px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .08);
}

.chat-page .chat-msg.is-own .chat-bubble {
  box-shadow: 0 5px 14px rgba(62, 79, 220, .16);
}

.chat-page .chat-bubble.is-media {
  box-shadow: none;
}

.chat-page .chat-time {
  font-variant-numeric: tabular-nums;
}

.chat-page .chat-load-more {
  margin: 0 auto 14px;
  border-color: color-mix(in srgb, var(--line) 78%, transparent);
  background: var(--sf-1);
  transition: background-color .16s ease, border-color .16s ease;
}

.chat-page .chat-load-more:hover {
  border-color: var(--bd-2);
  background: var(--sf-2);
}

.chat-page .chat-retention {
  flex: none;
  padding: 7px 16px;
  text-align: center;
  border-top: 1px solid color-mix(in srgb, var(--line) 65%, transparent);
}

.chat-page .chat-composer {
  flex: none;
  align-items: flex-end;
  gap: 9px;
  padding: 11px 14px max(11px, env(safe-area-inset-bottom));
  border-top-color: color-mix(in srgb, var(--line) 75%, transparent);
  backdrop-filter: blur(16px);
}

.chat-page .chat-composer textarea {
  min-height: 44px;
  max-height: 140px;
  padding: 11px 17px;
  border-color: color-mix(in srgb, var(--line) 55%, transparent);
  border-radius: 22px;
  line-height: 1.45;
  overscroll-behavior: contain;
}

.chat-page .chat-composer textarea:focus-visible {
  border-color: #6879ff;
  box-shadow: 0 0 0 3px rgba(88, 106, 255, .15);
}

.chat-page .chat-send,
.chat-page .chat-tool {
  transition: transform .16s ease, filter .16s ease, background-color .16s ease;
}

.chat-page .chat-send:hover,
.chat-page .chat-tool:hover {
  transform: translateY(-1px);
}

.chat-page .chat-send:active,
.chat-page .chat-tool:active {
  transform: scale(.96);
}

.chat-page .chat-request-gate {
  flex: none;
  padding: 16px;
}

.chat-page .chat-error {
  flex: none;
}

/* Inbox styling belongs only to the direct-message list surface. */
.conversations-page {
  max-width: 1040px;
}

.conversations-page .conversations-hero {
  max-width: 720px;
}

.conversations-page .conversations-search {
  max-width: 480px;
  min-height: 46px;
  margin-bottom: 18px;
  border-radius: 999px;
}

.conversations-page .community-posts {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
}

.conversations-page .community-posts > .panel-heading {
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
}

.conversations-page .message-row {
  min-height: 84px;
  padding: 14px 20px;
  transition: background-color .16s ease;
}

.conversations-page .message-row:hover {
  background: color-mix(in srgb, var(--sf-2) 72%, transparent);
}

.conversations-page .message-row.is-unread {
  background: color-mix(in srgb, var(--ac-blue) 7%, transparent);
}

.conversations-page .message-row > div {
  min-width: 0;
}

@media (max-width: 1024px) {
  .chat-page .chat-main {
    padding: 8px 10px max(8px, env(safe-area-inset-bottom));
  }

  .chat-page .chat-shell {
    border-radius: 18px;
  }
}

@media (max-width: 720px) {
  .chat-page .chat-main {
    padding: 0;
  }

  .chat-page .chat-shell {
    width: 100%;
    border-radius: 0;
    border-right: 0;
    border-left: 0;
    box-shadow: none;
  }

  .chat-page .chat-header {
    min-height: 58px;
    padding: 8px 10px;
    gap: 7px;
  }

  .chat-page .chat-scroll {
    padding: 12px 12px 8px;
    scroll-behavior: auto;
  }

  .chat-page .chat-msg-main {
    max-width: 86%;
  }

  .chat-page .chat-bubble {
    padding: 9px 13px;
    font-size: 14px;
  }

  .chat-page .chat-retention {
    padding: 5px 10px;
    font-size: 10px;
  }

  .chat-page .chat-composer {
    gap: 6px;
    padding: 8px 9px max(8px, env(safe-area-inset-bottom));
  }

  .chat-page .chat-composer textarea {
    flex-basis: 100px;
    padding-inline: 14px;
    font-size: 16px;
  }

  .chat-page .chat-tool,
  .chat-page .chat-send {
    width: 42px;
    height: 42px;
  }

  .conversations-page {
    padding-top: 24px;
  }

  .conversations-page .community-posts {
    border-radius: 16px;
  }

  .conversations-page .community-posts > .panel-heading,
  .conversations-page .message-row {
    padding-inline: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-page .chat-back,
  .chat-page .chat-header-action,
  .chat-page .chat-load-more,
  .chat-page .chat-send,
  .chat-page .chat-tool,
  .conversations-page .message-row {
    transition: none;
  }
}