/* A shared reading column for messages and the composer. */
body {
  --conversation-width: 800px;
  --conversation-surface: #ffffff;
  --conversation-bubble: #f1f1f1;
  --conversation-ink: #242424;
  --conversation-muted: #737373;
  --conversation-hover: #e9e9e9;
}

body.dark-mode {
  --conversation-surface: #17191d;
  --conversation-bubble: #2b2d32;
  --conversation-ink: #ececef;
  --conversation-muted: #a1a1aa;
  --conversation-hover: #34363c;
}

body .main-content:not(.section-mode) .chat-container {
  background: var(--conversation-surface);
  padding-top: 32px;
  padding-inline: 24px;
}

#chat-container > .message {
  max-width: var(--conversation-width);
  margin: 0 auto 32px;
  gap: 12px;
  position: relative;
}

#chat-container .message > .message-content {
  display: flex;
  flex-direction: column;
  padding-top: 0;
  min-width: 0;
}

#chat-container .message .message-text {
  color: var(--conversation-ink);
  font-size: 16px;
  line-height: 1.75;
  box-shadow: none;
  overflow-wrap: anywhere;
}

#chat-container .user-message {
  justify-content: flex-end;
  padding-bottom: 28px;
  margin-bottom: 24px;
}

#chat-container .user-message > .message-avatar {
  display: none;
}

#chat-container .user-message > .message-content {
  flex: 0 1 auto;
  width: fit-content;
  max-width: 80%;
  position: relative;
}

#chat-container .user-message .message-text {
  position: static;
  padding: 12px 20px;
  background: var(--conversation-bubble);
  border: 0;
  border-radius: 24px;
}

#chat-container .assistant-message > .message-avatar {
  width: 28px;
  height: 28px;
  margin-top: 3px;
  box-shadow: none;
  transform: none;
}

#chat-container .assistant-message .message-text {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

/* Order also covers restored conversations, whose controls precede the text. */
#chat-container .assistant-message .feedback-buttons {
  order: 2;
  justify-content: flex-start;
  gap: 2px;
  margin: 12px 0 0 -6px;
  flex-wrap: wrap;
}

#chat-container .message-actions {
  display: flex;
  top: auto;
  bottom: -32px;
  right: 2px;
  gap: 2px;
  padding: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
  opacity: 0;
  pointer-events: none;
}

#chat-container .message:hover .message-actions,
#chat-container .message:focus-within .message-actions {
  opacity: 1;
  pointer-events: auto;
}

#chat-container .message-action-btn,
#chat-container .feedback-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  min-height: 32px;
  padding: 7px;
  color: var(--conversation-muted);
  border: 0;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

#chat-container .message-action-btn:hover,
#chat-container .feedback-btn:hover {
  color: var(--conversation-ink);
  background: var(--conversation-hover);
  transform: none;
}

#chat-container .message-action-btn:focus-visible,
#chat-container .feedback-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

#chat-container .feedback-btn.liked,
#chat-container .feedback-btn.disliked {
  color: var(--conversation-ink);
  background: var(--conversation-hover);
}

body .main-content > .input-container {
  background: var(--conversation-surface);
  border-top: 0;
  box-shadow: none;
}

body:not(.dark-mode) .input-box,
body.dark-mode .input-box {
  max-width: var(--conversation-width);
  background: transparent;
}

body .main-content .textarea-container {
  background: var(--conversation-bubble);
  border: 1px solid transparent;
  border-radius: 26px;
  box-shadow: 0 3px 16px rgb(0 0 0 / 4%);
}

body .main-content .textarea-container:focus-within {
  border-color: var(--conversation-muted);
  box-shadow: 0 3px 16px rgb(0 0 0 / 6%);
}

body .main-content #user-input {
  color: var(--conversation-ink);
  background: transparent;
}

body .main-content #user-input::placeholder {
  color: var(--conversation-muted);
}

@media (hover: none) {
  #chat-container .message-actions {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 768px) {
  body .main-content:not(.section-mode) .chat-container {
    padding-inline: 16px;
    padding-top: 24px;
  }

  #chat-container > .message {
    gap: 8px;
    margin-bottom: 24px;
  }

  #chat-container .user-message > .message-content {
    max-width: 90%;
  }

  #chat-container .user-message .message-text {
    padding: 10px 16px;
    border-radius: 20px;
  }

  #chat-container .assistant-message > .message-avatar {
    width: 24px;
    height: 24px;
  }

  #chat-container .message .message-text {
    font-size: 15px;
  }

  #chat-container .message-action-btn,
  #chat-container .feedback-btn {
    min-width: 40px;
    min-height: 40px;
  }

  #chat-container .message-actions {
    bottom: -42px;
  }

  #chat-container .user-message {
    padding-bottom: 40px;
  }
}