.knowledge-assistant {
  --assistant-bg: var(--light, #f8f6f1);
  --assistant-card: var(--lightgray, #eceae5);
  --assistant-text: var(--dark, #2b2b2b);
  --assistant-muted: var(--gray, #6b6b6b);
  --assistant-accent: var(--secondary, #7b5c3a);
  --assistant-border: color-mix(
    in srgb,
    var(--assistant-text) 16%,
    transparent
  );
  position: fixed;
  z-index: 1000;
  left: 16px;
  bottom: 16px;
  color: var(--assistant-text);
  font-family: inherit;
}

.knowledge-assistant-toggle {
  width: 52px;
  height: 52px;
  border: 1px solid var(--assistant-border);
  border-radius: 999px;
  background: var(--assistant-accent);
  color: var(--assistant-bg);
  box-shadow: 0 8px 24px rgb(0 0 0 / 20%);
  cursor: pointer;
  font: 700 1.05rem/1 inherit;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
}

.knowledge-assistant-toggle:hover,
.knowledge-assistant-toggle:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgb(0 0 0 / 28%);
}

.knowledge-assistant-panel {
  position: absolute;
  left: 0;
  bottom: 68px;
  display: flex;
  flex-direction: column;
  width: min(360px, calc(100vw - 32px));
  max-height: min(620px, calc(100vh - 100px));
  overflow: hidden;
  border: 1px solid var(--assistant-border);
  border-radius: 16px;
  background: var(--assistant-bg);
  box-shadow: 0 16px 48px rgb(0 0 0 / 28%);
}

.knowledge-assistant-panel[hidden] {
  display: none;
}

.knowledge-assistant-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--assistant-border);
}

.knowledge-assistant-title,
.knowledge-assistant-subtitle,
.knowledge-assistant-documents-title,
.knowledge-assistant-document-snippet {
  margin: 0;
}

.knowledge-assistant-title {
  font-size: 1rem;
}

.knowledge-assistant-subtitle {
  margin-top: 3px;
  color: var(--assistant-muted);
  font-size: 0.74rem;
}

.knowledge-assistant-close {
  border: 0;
  background: transparent;
  color: var(--assistant-muted);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
}

.knowledge-assistant-messages {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  min-height: 160px;
  padding: 12px;
  overflow: auto;
  font-size: 0.86rem;
}

.knowledge-assistant-message {
  max-width: 92%;
  padding: 9px 11px;
  border-radius: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.knowledge-assistant-message-text {
  overflow-wrap: anywhere;
}

.knowledge-assistant-message.assistant {
  align-self: flex-start;
  background: var(--assistant-card);
}

.knowledge-assistant-message.user {
  align-self: flex-end;
  background: color-mix(
    in srgb,
    var(--assistant-accent) 18%,
    var(--assistant-bg)
  );
}

.knowledge-assistant-documents {
  padding: 8px 10px;
  border: 1px solid var(--assistant-border);
  border-radius: 10px;
}

.knowledge-assistant-documents-title {
  color: var(--assistant-muted);
  font-size: 0.74rem;
}

.knowledge-assistant-document-list {
  display: grid;
  gap: 7px;
  margin: 7px 0 0;
  padding-left: 1.1rem;
}

.knowledge-assistant-document-link {
  color: var(--assistant-accent);
  font-weight: 600;
}

.knowledge-assistant-document-snippet {
  display: -webkit-box;
  overflow: hidden;
  color: var(--assistant-muted);
  font-size: 0.75rem;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.knowledge-assistant-form {
  display: flex;
  gap: 8px;
  padding: 10px 12px 12px;
  border-top: 1px solid var(--assistant-border);
}

.knowledge-assistant-input {
  min-width: 0;
  flex: 1;
  resize: vertical;
  border: 1px solid var(--assistant-border);
  border-radius: 9px;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 8px 9px;
}

.knowledge-assistant-input:focus-visible {
  outline: 2px solid var(--assistant-accent);
  outline-offset: 1px;
}

.knowledge-assistant-submit {
  align-self: flex-end;
  border: 0;
  border-radius: 9px;
  background: var(--assistant-accent);
  color: var(--assistant-bg);
  cursor: pointer;
  padding: 9px 12px;
  font: inherit;
}

.knowledge-assistant-submit:disabled,
.knowledge-assistant-input:disabled {
  cursor: wait;
  opacity: 0.6;
}

@media (max-width: 600px) {
  .knowledge-assistant {
    left: 12px;
    bottom: 12px;
  }

  .knowledge-assistant-panel {
    bottom: 64px;
    width: calc(100vw - 24px);
    max-height: calc(100vh - 88px);
  }
}