ui/src/styles/chat/tool-cards.css

/* Tool Card Styles */
.chat-tool-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  margin-top: 6px;
  background: var(--card);
  transition:
    border-color var(--duration-fast) ease-out,
    background var(--duration-fast) ease-out;
  max-height: 120px;
  overflow: hidden;
}

.chat-tool-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

/* First tool card in a group - no top margin */
.chat-tool-card:first-child {
  margin-top: 0;
}

.chat-tool-card--clickable {
  cursor: pointer;
}

.chat-tool-card--clickable:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Header with title and chevron */
.chat-tool-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.chat-tool-card__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.2;
}

.chat-tool-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.chat-tool-card__icon svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* "View >" action link */
.chat-tool-card__action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--accent);
  opacity: 0.8;
  transition: opacity 150ms ease-out;
}

.chat-tool-card__action svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chat-tool-card--clickable:hover .chat-tool-card__action {
  opacity: 1;
}

/* Status indicator for completed/empty results */
.chat-tool-card__status {
  display: inline-flex;
  align-items: center;
  color: var(--ok);
}

.chat-tool-card__status svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chat-tool-card__status-text {
  font-size: 11px;
  margin-top: 4px;
}

.chat-tool-card__detail {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* Collapsed preview - fixed height with truncation */
.chat-tool-card__preview {
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
  padding: 8px 10px;
  background: var(--secondary);
  border-radius: var(--radius-md);
  white-space: pre-wrap;
  overflow: hidden;
  max-height: 44px;
  line-height: 1.4;
  border: 1px solid var(--border);
}

.chat-tool-card--clickable:hover .chat-tool-card__preview {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

/* Short inline output */
.chat-tool-card__inline {
  font-size: 11px;
  color: var(--text);
  margin-top: 6px;
  padding: 6px 8px;
  background: var(--secondary);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-tools-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  user-select: none;
  list-style: none;
  transition:
    color 150ms ease,
    background 150ms ease;
}

.chat-tools-summary::-webkit-details-marker {
  display: none;
}

.chat-tools-summary::before {
  content: "▸";
  font-size: 10px;
  flex-shrink: 0;
  transition: transform 150ms ease;
}

.chat-tools-collapse[open] > .chat-tools-summary::before {
  transform: rotate(90deg);
}

.chat-tools-summary:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--bg-hover) 50%, transparent);
}

.chat-tools-summary__icon {
  display: inline-flex;
  align-items: center;
  width: 14px;
  height: 14px;
  color: var(--accent);
  opacity: 0.7;
  flex-shrink: 0;
}

.chat-tools-summary__icon svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chat-tools-summary__count {
  font-weight: 600;
  color: var(--text);
}

.chat-tools-summary__names {
  color: var(--muted);
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-tools-collapse__body {
  padding: 4px 12px 12px;
  border-top: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
}

.chat-tools-collapse__body .chat-tool-card:first-child {
  margin-top: 8px;
}

.chat-json-collapse {
  margin-top: 4px;
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--secondary) 60%, transparent);
  overflow: hidden;
}

.chat-json-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  user-select: none;
  list-style: none;
  transition:
    color 150ms ease,
    background 150ms ease;
}

.chat-json-summary::-webkit-details-marker {
  display: none;
}

.chat-json-summary::before {
  content: "▸";
  font-size: 10px;
  flex-shrink: 0;
  transition: transform 150ms ease;
}

.chat-json-collapse[open] > .chat-json-summary::before {
  transform: rotate(90deg);
}

.chat-json-summary:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--bg-hover) 50%, transparent);
}

.chat-json-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.4;
  flex-shrink: 0;
}

.chat-json-label {
  font-family: var(--mono);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-json-content {
  margin: 0;
  padding: 10px 12px;
  border-top: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--text);
  overflow-x: auto;
  max-height: 400px;
  overflow-y: auto;
}

.chat-json-content code {
  font-family: inherit;
  font-size: inherit;
}

.chat-tool-msg-collapse {
  margin-top: 2px;
}

.chat-tool-msg-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  user-select: none;
  list-style: none;
  border: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-hover) 35%, transparent);
  transition:
    color 150ms ease,
    background 150ms ease,
    border-color 150ms ease;
}

.chat-tool-msg-summary::-webkit-details-marker {
  display: none;
}

.chat-tool-msg-summary::before {
  content: "▸";
  font-size: 10px;
  flex-shrink: 0;
  transition: transform 150ms ease;
}

.chat-tool-msg-collapse[open] > .chat-tool-msg-summary::before {
  transform: rotate(90deg);
}

.chat-tool-msg-summary:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--bg-hover) 60%, transparent);
  border-color: color-mix(in srgb, var(--border-strong) 70%, transparent);
}

.chat-tool-msg-summary__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  color: var(--accent);
  opacity: 0.75;
  flex-shrink: 0;
}

.chat-tool-msg-summary__icon svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chat-tool-msg-summary__label {
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

.chat-tool-msg-summary__names {
  font-family: var(--mono);
  font-size: 11px;
  opacity: 0.85;
  flex: 1 1 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.chat-tool-msg-summary__preview {
  font-family: var(--mono);
  font-size: 11px;
  opacity: 0.85;
  flex: 1 1 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.chat-tool-msg-body {
  padding-top: 8px;
}

/* Reading Indicator */
.chat-reading-indicator {
  background: transparent;
  border: 1px solid var(--border);
  padding: 12px;
  display: inline-flex;
}

.chat-reading-indicator__dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.chat-reading-indicator__dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  animation: reading-pulse 1.4s ease-in-out infinite;
}

.chat-reading-indicator__dots span:nth-child(1) {
  animation-delay: 0s;
}

.chat-reading-indicator__dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.chat-reading-indicator__dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes reading-pulse {
  0%,
  60%,
  100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  30% {
    opacity: 1;
    transform: scale(1);
  }
}