.business-assistant-layout {
  display: grid;
  grid-template-columns: minmax(250px, .62fr) minmax(430px, 1.38fr);
  gap: 20px;
  align-items: start;
}
.business-assistant-guide { position: sticky; top: 110px; }
.business-assistant-guide > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}
.business-suggestions { display: grid; gap: 9px; margin-top: 22px; }
.business-suggestions button {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8f8f5;
  color: var(--ink);
  padding: 12px 13px;
  text-align: left;
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}
.business-suggestions button:hover { border-color: #aabce2; background: #f2f5fb; }
.business-chat {
  height: min(710px, calc(100vh - 180px));
  min-height: 540px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr auto;
}
.business-chat > header {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 16px 18px;
  background: var(--navy);
  color: #fff;
}
.business-chat > header p { display: grid; margin: 0; }
.business-chat > header strong { font-size: 13px; }
.business-chat > header small { color: #aeb8ca; font-size: 10px; margin-top: 3px; }
.business-chat > header .status-pill { margin-left: auto; }
.business-messages {
  overflow: auto;
  padding: 22px;
  background: #f6f5f1;
  scroll-behavior: smooth;
}
.business-message {
  width: fit-content;
  max-width: 84%;
  border-radius: 13px;
  padding: 11px 14px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.business-message.assistant {
  background: #fff;
  border: 1px solid #e2e5ea;
  border-bottom-left-radius: 4px;
}
.business-message.user {
  margin-left: auto;
  background: var(--navy);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.business-message.typing { color: var(--muted); font-style: italic; }
.business-upgrade-action { display: block; width: fit-content; margin: -2px 3px 15px; }
.business-evidence {
  display: grid;
  gap: 6px;
  max-width: 84%;
  margin: -2px 3px 15px;
}
.business-evidence-item {
  border-left: 3px solid #9bb3e5;
  padding: 7px 10px;
  background: rgba(255,255,255,.72);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}
.business-evidence-item strong { display: block; color: #465269; font-size: 11px; }
.business-evidence-link {
  display: inline-block;
  margin-top: 5px;
  color: #315fae;
  font-size: 11px;
  font-weight: 750;
}
.business-composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px;
  padding: 13px;
  border-top: 1px solid var(--line);
  align-items: end;
}
.business-composer textarea { min-height: 46px; max-height: 130px; resize: vertical; }
.business-composer .button { min-height: 46px; padding-left: 22px; padding-right: 22px; }
.business-composer textarea:disabled { background: #f2f3f4; }
@media (max-width: 900px) {
  .business-assistant-layout { grid-template-columns: 1fr; }
  .business-assistant-guide { position: static; }
  .business-chat { height: 640px; }
}
@media (max-width: 560px) {
  .business-chat { height: calc(100vh - 190px); min-height: 500px; }
  .business-message, .business-evidence { max-width: 92%; }
  .business-chat > header .status-pill { display: none; }
}