.ain-chat {
  --ain-bg: #ffffff;
  --ain-border: #d8dee4;
  --ain-muted: #667085;
  --ain-user: #111827;
  --ain-agent: #f3f4f6;
  --ain-radius: 16px;
  width: min(100%, 720px);
  margin: 1.5rem auto;
  border: 1px solid var(--ain-border);
  border-radius: var(--ain-radius);
  background: var(--ain-bg);
  overflow: hidden;
  box-shadow: 0 16px 50px rgba(15, 23, 42, 0.08);
  font-family: inherit;
}

.ain-chat__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--ain-border);
  background: #fafafa;
}

.ain-chat__reset {
  border: 1px solid var(--ain-border);
  background: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  font-size: 0.85rem;
}

.ain-chat__messages {
  height: 440px;
  overflow-y: auto;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #fbfbfd 100%);
}

.ain-chat__message {
  display: flex;
  margin: 0 0 0.8rem;
}

.ain-chat__message--user {
  justify-content: flex-end;
}

.ain-chat__message--assistant {
  justify-content: flex-start;
}

.ain-chat__bubble {
  max-width: min(86%, 620px);
  padding: 0.75rem 0.9rem;
  border-radius: 14px;
  line-height: 1.45;
  font-size: 0.96rem;
  overflow-wrap: anywhere;
}

.ain-chat__message--user .ain-chat__bubble {
  background: var(--ain-user);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.ain-chat__message--assistant .ain-chat__bubble {
  background: var(--ain-agent);
  color: #111827;
  border-bottom-left-radius: 4px;
}

.ain-chat__message--loading .ain-chat__bubble {
  color: var(--ain-muted);
  font-style: italic;
}

.ain-chat__bubble a {
  color: inherit;
  text-decoration: underline;
}

.ain-chat__form {
  display: flex;
  gap: 0.75rem;
  padding: 0.9rem;
  border-top: 1px solid var(--ain-border);
  background: #fff;
}

.ain-chat__input {
  flex: 1;
  min-height: 48px;
  max-height: 160px;
  resize: vertical;
  border: 1px solid var(--ain-border);
  border-radius: 12px;
  padding: 0.75rem;
  font: inherit;
}

.ain-chat__send {
  border: 0;
  border-radius: 12px;
  background: #111827;
  color: #fff;
  padding: 0 1.1rem;
  cursor: pointer;
  font-weight: 600;
}

.ain-chat__send:disabled,
.ain-chat__input:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

@media (max-width: 640px) {
  .ain-chat__messages {
    height: 360px;
  }
  .ain-chat__form {
    flex-direction: column;
  }
  .ain-chat__send {
    padding: 0.75rem 1rem;
  }
}

.ain-chat__lead-box {
  margin-top: 0.9rem;
  border: 1px solid var(--ain-border);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
}

.ain-chat__lead-title {
  padding: 0.65rem 0.75rem;
  font-weight: 700;
  border-bottom: 1px solid var(--ain-border);
  background: #fafafa;
}

.ain-chat__table-wrap {
  width: 100%;
  overflow-x: auto;
}

.ain-chat__lead-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.ain-chat__lead-table th,
.ain-chat__lead-table td {
  border-bottom: 1px solid #eef0f3;
  padding: 0.6rem 0.65rem;
  text-align: left;
  vertical-align: top;
}

.ain-chat__lead-table th {
  font-weight: 700;
  background: #f9fafb;
  color: #111827;
}

.ain-chat__lead-table tr:last-child td {
  border-bottom: 0;
}

.ain-chat__empty {
  color: var(--ain-muted);
  font-style: italic;
}

.ain-chat__lead-note {
  padding: 0.55rem 0.75rem;
  color: var(--ain-muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--ain-border);
}

@media (max-width: 640px) {
  .ain-chat__lead-table {
    min-width: 0;
  }

  .ain-chat__lead-table thead {
    display: none;
  }

  .ain-chat__lead-table,
  .ain-chat__lead-table tbody,
  .ain-chat__lead-table tr,
  .ain-chat__lead-table td {
    display: block;
    width: 100%;
  }

  .ain-chat__lead-table tr {
    border-bottom: 1px solid var(--ain-border);
    padding: 0.35rem 0;
  }

  .ain-chat__lead-table tr:last-child {
    border-bottom: 0;
  }

  .ain-chat__lead-table td {
    border-bottom: 0;
    padding: 0.45rem 0.75rem;
  }

  .ain-chat__lead-table td::before {
    content: attr(data-label) ': ';
    display: block;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.15rem;
  }
}