.agent_trace_page {
  min-height: 100vh;
}

.agent_trace_container {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 1400px;
}

.agent_trace_header h1 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--ink);
}

.agent_trace_header p {
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.agent_trace_forbidden {
  padding: 2rem;
  color: var(--error);
}

.agent_trace_search_bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 0.75rem;
  padding: 0.85rem;
}

.agent_trace_field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 8rem;
}

.agent_trace_field--grow {
  flex: 1 1 16rem;
}

.agent_trace_label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.agent_trace_field input,
.agent_trace_field select {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

.agent_trace_check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  padding-bottom: 0.4rem;
}

.agent_trace_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}

.agent_trace_btn--primary {
  background: var(--vibrant-blue);
  border-color: var(--vibrant-blue);
  color: var(--white);
}

.agent_trace_btn--ghost {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink-soft);
}

.agent_trace_btn--sm {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
}

.agent_trace_notice--error {
  border: 1px solid var(--error-tint);
  background: var(--error-tint);
  color: var(--error);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
}

.agent_trace_loading {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.agent_trace_empty {
  border: 1px dashed var(--line);
  border-radius: 0.75rem;
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary);
}

.agent_trace_run_list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.agent_trace_run_card {
  text-align: left;
  width: 100%;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 0.75rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.agent_trace_run_card:hover {
  border-color: var(--vibrant-blue);
  box-shadow: 0 1px 4px rgba(37, 99, 235, 0.12);
}

.agent_trace_run_card_top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.agent_trace_time {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: ui-monospace, monospace;
}

.agent_trace_badge {
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
  padding: 0.15rem 0.55rem;
}

.agent_trace_badge--fast {
  background: var(--success-tint);
  color: var(--success);
}

.agent_trace_badge--medium {
  background: var(--warning-tint);
  color: var(--orange-dark);
}

.agent_trace_badge--slow {
  background: var(--error-tint);
  color: var(--error);
}

.agent_trace_status {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 0.25rem;
  padding: 0.1rem 0.4rem;
  background: var(--neutral-tint);
  color: var(--ink-soft);
}

.agent_trace_status--success {
  background: var(--success-tint);
  color: var(--success);
}

.agent_trace_status--failed {
  background: var(--error-tint);
  color: var(--error);
}

.agent_trace_status--partial {
  background: var(--warning-tint);
  color: var(--orange-dark);
}

.agent_trace_status--running,
.agent_trace_status--active,
.agent_trace_status--initial {
  background: var(--info-tint);
  color: var(--navy);
}

.agent_trace_status--unknown {
  background: var(--neutral-tint);
  color: var(--text-secondary);
}

.agent_trace_load_more {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0 1rem;
}

.agent_trace_run_picker {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.agent_trace_run_picker_list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.agent_trace_chip--active {
  border-color: var(--vibrant-blue);
  background: var(--info-tint);
  color: var(--navy);
  font-weight: 600;
}

.agent_trace_usage {
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.agent_trace_approx_notes {
  margin: 0.35rem 0 0.5rem 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.agent_trace_run_meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.agent_trace_prompt {
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.agent_trace_tool_chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.agent_trace_chip {
  font-size: 0.7rem;
  font-family: ui-monospace, monospace;
  background: var(--neutral-tint);
  color: var(--ink-soft);
  border-radius: 0.35rem;
  padding: 0.15rem 0.45rem;
}

.agent_trace_chip--more {
  background: var(--line);
}

.agent_trace_chip--clickable {
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--white);
}

.agent_trace_chip--clickable:hover {
  border-color: var(--vibrant-blue);
  color: var(--vibrant-blue);
}

.agent_trace_recent {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.agent_trace_detail_actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.agent_trace_inspector_actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.65rem;
}

.agent_trace_msg--highlight {
  outline: 2px solid var(--vibrant-blue);
  outline-offset: 1px;
}

.agent_trace_notice {
  border: 1px solid var(--info-tint);
  background: var(--info-tint);
  color: var(--navy);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
}

.agent_trace_detail_header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.agent_trace_detail_title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.agent_trace_event_uid {
  font-size: 0.85rem;
  background: var(--neutral-tint);
  padding: 0.2rem 0.45rem;
  border-radius: 0.35rem;
}

.agent_trace_panels {
  display: grid;
  gap: 0.75rem;
  align-items: start;
}

/* Default: Timeline | Step workspace | thin transcript rail */
.agent_trace_panels--transcript-rail {
  grid-template-columns: minmax(200px, 0.95fr) minmax(300px, 1.7fr) 2.75rem;
}

/* Expanded drawer: full third column again */
.agent_trace_panels--transcript-open {
  grid-template-columns: minmax(200px, 0.85fr) minmax(280px, 1.35fr) minmax(220px, 0.95fr);
}

@media (max-width: 1100px) {
  .agent_trace_panels--transcript-rail,
  .agent_trace_panels--transcript-open {
    grid-template-columns: 1fr;
  }

  .agent_trace_panel--transcript-rail {
    min-height: auto;
  }

  .agent_trace_transcript_rail_btn {
    writing-mode: horizontal-tb;
    transform: none;
    width: 100%;
    min-height: 2.5rem;
    flex-direction: row;
    gap: 0.5rem;
  }
}

.agent_trace_panel {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 0.75rem;
  padding: 0.85rem;
  min-height: 12rem;
}

/* LLM step grows with content; page scroll only — no nested panel scrollbar */
.agent_trace_panel--inspector {
  max-height: none;
  overflow: visible;
  min-height: 12rem;
}

/* Collapsed transcript: narrow rail, no padding bloat */
.agent_trace_panel--transcript-rail {
  padding: 0.35rem 0.2rem;
  min-height: 12rem;
  display: flex;
  align-items: stretch;
  justify-content: center;
  overflow: hidden;
}

.agent_trace_transcript_rail_btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0.55rem;
  width: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0.65rem 0.15rem;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font: inherit;
  border-radius: 0.5rem;
}

.agent_trace_transcript_rail_btn:hover,
.agent_trace_transcript_rail_btn:focus-visible {
  background: var(--neutral-tint);
  color: var(--navy);
  outline: none;
}

.agent_trace_transcript_rail_label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.1;
}

.agent_trace_transcript_rail_count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35rem;
  height: 1.35rem;
  padding: 0 0.3rem;
  border-radius: 9999px;
  background: var(--info-tint);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 700;
}

.agent_trace_transcript_head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.agent_trace_transcript_head h2 {
  margin-bottom: 0;
}

.agent_trace_panel--transcript {
  max-height: min(85vh, 56rem);
  overflow: auto;
}

.agent_trace_panel h2 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
}

.agent_trace_panel h3 {
  font-size: 0.8rem;
  font-weight: 600;
  margin: 0.75rem 0 0.35rem;
  color: var(--ink-soft);
}

.agent_trace_waterfall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.agent_trace_step {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--canvas);
  padding: 0.45rem 0.55rem;
  cursor: pointer;
}

.agent_trace_step--selected {
  border-color: var(--vibrant-blue);
  box-shadow: 0 0 0 1px var(--vibrant-blue);
}

.agent_trace_step--llm {
  border-left: 3px solid var(--info);
}

.agent_trace_step--tool {
  border-left: 3px solid var(--trace-tool);
}

.agent_trace_step--system {
  border-left: 3px solid var(--stone);
}

.agent_trace_step--failed {
  border-left: 3px solid var(--error);
  outline: 1px solid var(--error-tint);
}

.agent_trace_step_label {
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
  font-size: 0.8rem;
  margin-bottom: 0.3rem;
}

.agent_trace_step_idx {
  color: var(--stone);
  font-family: ui-monospace, monospace;
  min-width: 1.2rem;
}

.agent_trace_step_name {
  flex: 1;
  font-weight: 600;
  color: var(--ink);
  word-break: break-all;
}

.agent_trace_step_ms {
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.agent_trace_step_bar_track {
  height: 6px;
  background: var(--line);
  border-radius: 9999px;
  overflow: hidden;
}

.agent_trace_gantt_axis {
  position: relative;
  height: 1.1rem;
  margin: 0 0 0.35rem 0;
  border-bottom: 1px solid var(--line);
}

.agent_trace_gantt_tick {
  position: absolute;
  transform: translateX(-50%);
  font-size: 0.65rem;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.agent_trace_gantt_tick:first-child {
  transform: translateX(0);
}

.agent_trace_gantt_tick:last-child {
  transform: translateX(-100%);
}

.agent_trace_gantt_track {
  position: relative;
  height: 8px;
  background: var(--line);
  border-radius: 9999px;
  overflow: hidden;
}

.agent_trace_gantt_track--relative {
  background: repeating-linear-gradient(
    90deg,
    var(--line) 0,
    var(--line) 6px,
    var(--neutral-tint) 6px,
    var(--neutral-tint) 12px
  );
  opacity: 0.95;
}

.agent_trace_gantt_track--unknown {
  background: var(--neutral-tint);
  border: 1px dashed var(--line);
  opacity: 0.7;
}

.agent_trace_gantt_bar,
.agent_trace_step_bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--info), var(--trace-tool));
  border-radius: 9999px;
  min-width: 2px;
}

.agent_trace_step--llm .agent_trace_gantt_bar,
.agent_trace_step--llm .agent_trace_step_bar {
  background: linear-gradient(90deg, var(--info), var(--info));
}

.agent_trace_step--tool .agent_trace_gantt_bar,
.agent_trace_step--tool .agent_trace_step_bar {
  background: linear-gradient(90deg, var(--trace-tool), var(--trace-tool));
}

.agent_trace_step--failed .agent_trace_gantt_bar,
.agent_trace_step--failed .agent_trace_step_bar {
  background: linear-gradient(90deg, var(--error), var(--error));
}

.agent_trace_step_offset {
  color: var(--stone);
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.agent_trace_badge--concurrent {
  background: var(--warning-tint);
  color: var(--orange-dark);
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 9999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.agent_trace_wall_header {
  margin: 0.5rem 0 0.35rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.agent_trace_wall_row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.65rem;
  align-items: baseline;
  margin-bottom: 0.2rem;
}

.agent_trace_wall_label {
  font-weight: 600;
  color: var(--ink);
}

.agent_trace_notice--muted {
  background: var(--canvas);
  border: 1px solid var(--line);
  color: var(--text-secondary);
}

.agent_trace_filter_chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.agent_trace_hotkey_hint {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
}

.agent_trace_usage_block {
  margin: 0.4rem 0;
}

.agent_trace_usage_table {
  border-collapse: collapse;
  font-size: 0.78rem;
  min-width: 10rem;
}

.agent_trace_usage_table th,
.agent_trace_usage_table td {
  text-align: left;
  padding: 0.15rem 0.55rem 0.15rem 0;
  border-bottom: 1px solid var(--neutral-tint);
  color: var(--ink-soft);
}

.agent_trace_usage_table th {
  color: var(--stone);
  font-weight: 600;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.agent_trace_pre_toolbar {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
}

.agent_trace_subhead {
  font-size: 0.8rem;
  font-weight: 600;
  margin: 0.5rem 0 0.25rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.agent_trace_mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
}

.agent_trace_pre--compact {
  max-height: 6rem;
}

/* Model input_approx: tall viewport so instructions/context/history are readable */
.agent_trace_pre--input {
  max-height: min(70vh, 48rem);
}

/* Operator chose Expand — do not clip the block */
.agent_trace_pre--expanded {
  max-height: none;
}

/* LLM step workspace / agent_simulation — dense operator layout */
.agent_trace_sim {
  border: 1px solid var(--info-tint);
  background: var(--wash-cool);
  border-radius: 0.5rem;
  padding: 0.55rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

/* Nested inside the inspector panel: no extra outer chrome */
.agent_trace_sim--workspace {
  margin-top: 0.5rem;
  border: none;
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.agent_trace_raw_input {
  margin-top: 0.65rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.agent_trace_raw_input summary {
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.agent_trace_sim_header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.75rem;
}

.agent_trace_sim_header h2 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
}

.agent_trace_sim_header .agent_trace_muted {
  margin: 0;
  font-size: 0.75rem;
}

.agent_trace_sim_form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.agent_trace_sim_meta_row {
  display: grid;
  grid-template-columns: minmax(8rem, 1.4fr) minmax(5rem, 0.7fr) minmax(5rem, 0.7fr);
  gap: 0.4rem 0.55rem;
  align-items: end;
}

.agent_trace_sim_meta_row .agent_trace_field {
  min-width: 0;
}

.agent_trace_sim_meta_row input {
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  padding: 0.3rem 0.5rem;
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.agent_trace_sim_status {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.3;
}

.agent_trace_sim_prompt_row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 0.55rem;
  align-items: start;
}

.agent_trace_sim_prompt {
  border: 1px solid transparent;
  border-radius: 0.4rem;
  padding: 0.2rem 0.25rem 0.25rem;
  background: transparent;
  min-width: 0;
}

.agent_trace_sim_prompt--dirty {
  border-color: var(--warning);
  background: var(--warning-tint);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.15);
}

.agent_trace_sim_prompt_head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  min-height: 1.25rem;
}

.agent_trace_sim_prompt_dirty_ui {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-left: auto;
}

.agent_trace_sim_prompt_dirty_ui[hidden] {
  display: none !important;
}

.agent_trace_sim_prompt--dirty textarea {
  border-color: var(--orange-light);
  background: var(--wash-warm);
}

.agent_trace_sim_form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  padding: 0.35rem 0.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  line-height: 1.35;
  resize: vertical;
  background: var(--white);
  min-height: 4.5rem;
  max-height: min(40vh, 18rem);
  overflow-x: hidden;
  overflow-y: auto;
}

.agent_trace_sim_messages {
  min-height: 6rem;
  max-height: min(45vh, 22rem);
  overflow-x: hidden;
  overflow-y: auto;
}

.agent_trace_sim_messages--invalid {
  border-color: var(--error-tint) !important;
  box-shadow: 0 0 0 1px var(--error-tint);
}

.agent_trace_sim_json_bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.2rem;
}

.agent_trace_sim_json_status {
  font-size: 0.75rem;
  color: var(--text-secondary);
  flex: 1 1 12rem;
}

.agent_trace_sim_json_status--ok {
  color: var(--success);
}

.agent_trace_sim_json_status--bad {
  color: var(--error);
  font-weight: 600;
}

.agent_trace_sim_readonly {
  background: var(--neutral-tint);
  color: var(--ink-soft);
}

.agent_trace_sim_messages_block {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.agent_trace_sim_msg_list_head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  flex: 0 0 auto;
  padding: 0 0.1rem;
}

/* Full message stack — no nested list scrollbar; page scrolls with the LLM step */
.agent_trace_sim_msg_list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: none;
  min-height: 0;
  overflow: visible;
  padding: 0.35rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--white);
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.agent_trace_sim_msg_list:focus-visible {
  outline: 2px solid var(--info-tint);
  outline-offset: 1px;
}

.agent_trace_sim_dirty_badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-radius: 9999px;
  padding: 0.1rem 0.45rem;
  background: var(--warning);
  color: var(--orange-dark);
  border: 1px solid var(--warning);
}

.agent_trace_btn--restore {
  background: var(--wash-warm);
  border: 1px solid var(--orange);
  color: var(--orange-dark);
  font-weight: 600;
}

.agent_trace_btn--restore:hover {
  background: var(--warning-tint);
  border-color: var(--orange);
}

.agent_trace_btn--danger {
  background: var(--error-tint);
  border: 1px solid var(--error-tint);
  color: var(--error);
  font-weight: 600;
}

.agent_trace_btn--danger:hover {
  background: var(--error-tint);
  border-color: var(--error);
}

.agent_trace_sim_add_row {
  display: flex;
  justify-content: center;
  padding: 0;
  line-height: 1;
  min-height: 0.9rem;
}

.agent_trace_sim_add_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35rem;
  height: 1.1rem;
  padding: 0 0.4rem;
  border: 1px dashed var(--line);
  border-radius: 9999px;
  background: transparent;
  color: var(--stone);
  font-size: 0.65rem;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  opacity: 0.55;
}

.agent_trace_sim_add_row:hover .agent_trace_sim_add_btn,
.agent_trace_sim_add_btn:hover,
.agent_trace_sim_add_btn:focus-visible {
  opacity: 1;
  border-color: var(--info);
  color: var(--info);
  background: var(--info-tint);
}

.agent_trace_sim_msg--new {
  border-style: dashed;
}

.agent_trace_sim_msg {
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--white);
  padding: 0.35rem 0.45rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  position: relative;
}

.agent_trace_sim_msg--dirty {
  border: 1px solid var(--warning);
  background: var(--warning-tint);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.15);
}

.agent_trace_sim_msg--editing {
  border-color: var(--info);
  box-shadow: 0 0 0 1px var(--info-tint);
  flex: 0 0 auto;
  /* Keep the open editor from collapsing inside the scroll pane */
  min-height: 0;
}

.agent_trace_sim_msg--dirty.agent_trace_sim_msg--editing {
  border-color: var(--warning);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.agent_trace_sim_msg_dirty_banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  margin: -0.35rem -0.45rem 0.1rem;
  padding: 0.15rem 0.45rem;
  background: linear-gradient(90deg, var(--warning), var(--orange-light));
  border-radius: 0.35rem 0.35rem 0 0;
  color: var(--orange-dark);
}

.agent_trace_sim_msg_dirty_banner_text {
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agent_trace_sim_msg_head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
}

.agent_trace_sim_msg_role {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 0.2rem;
  padding: 0.05rem 0.3rem;
  background: var(--neutral-tint);
  color: var(--ink-soft);
}

.agent_trace_sim_msg_role--user {
  background: var(--info-tint);
  color: var(--navy);
}

.agent_trace_sim_msg_role--assistant {
  background: var(--success-tint);
  color: var(--success);
}

.agent_trace_sim_msg_role--tool {
  background: var(--wash-violet);
  color: var(--trace-tool);
}

.agent_trace_sim_msg_role--system {
  background: var(--line);
  color: var(--ink-soft);
}

.agent_trace_sim_msg_actions {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.agent_trace_sim_msg_content {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  line-height: 1.35;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink);
  max-height: 5rem;
  overflow: auto;
}

.agent_trace_sim_msg_content--dirty {
  max-height: min(30vh, 12rem);
  background: var(--wash-warm);
  border: 1px solid var(--orange-light);
  border-radius: 0.3rem;
  padding: 0.25rem 0.4rem;
  color: var(--orange-dark);
}

.agent_trace_sim_role_inline {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  min-width: 0;
}

.agent_trace_sim_role_inline .agent_trace_label {
  margin: 0;
}

.agent_trace_sim_role_select {
  width: auto;
  max-width: 8.5rem;
  background: var(--white);
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  padding: 0.15rem 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.agent_trace_sim_msg_edit {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 0 0 auto;
  min-width: 0;
  min-height: 0;
}

/* Override form-level textarea min-heights; must scroll when content is long */
.agent_trace_sim_form .agent_trace_sim_msg_edit textarea,
.agent_trace_sim_msg_edit_content,
.agent_trace_sim_msg_edit_tools_ta {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0.35rem 0.45rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  line-height: 1.35;
  resize: vertical;
  background: var(--white);
  /* Prefer a usable editor height; grow a bit with content, then scroll */
  min-height: 6rem;
  max-height: min(45vh, 20rem);
  overflow-x: hidden;
  overflow-y: auto;
  field-sizing: content;
}

.agent_trace_sim_msg_edit_content {
  min-height: 6.5rem;
}

.agent_trace_sim_msg_edit_tools {
  margin: 0;
  border: none;
  padding: 0;
  min-width: 0;
}

.agent_trace_sim_msg_edit_tools summary {
  cursor: pointer;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  user-select: none;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

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

.agent_trace_sim_msg_edit_tools summary::before {
  content: '+';
  font-weight: 700;
  color: var(--stone);
  width: 0.85rem;
}

.agent_trace_sim_msg_edit_tools[open] summary::before {
  content: '−';
}

.agent_trace_sim_msg_edit_tools_ta {
  margin-top: 0.2rem;
  min-height: 3rem;
  max-height: min(30vh, 12rem);
}

.agent_trace_chip--dirty {
  background: var(--warning-tint);
  color: var(--orange-dark);
  font-weight: 600;
}

.agent_trace_sim_advanced {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.agent_trace_sim_messages_hidden {
  display: none !important;
}

.agent_trace_sim_actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  margin-top: 0.1rem;
}

.agent_trace_sim_current_time {
  flex: 1 1 10rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
  background: var(--neutral-tint);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0.25rem 0.45rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.agent_trace_sim_compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  align-items: start;
}

.agent_trace_sim_compare--idle .agent_trace_sim_col--result {
  min-height: 0;
  padding: 0.4rem 0.5rem;
}

.agent_trace_sim_compare--idle .agent_trace_sim_col--result h3 {
  margin-bottom: 0.15rem;
}

.agent_trace_pre--sim {
  max-height: min(35vh, 16rem);
  font-size: 0.72rem;
  padding: 0.45rem;
}

.agent_trace_sim_col_note {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  line-height: 1.3;
}

@media (max-width: 850px) {
  .agent_trace_sim_compare,
  .agent_trace_sim_prompt_row {
    grid-template-columns: 1fr;
  }

  .agent_trace_sim_meta_row {
    grid-template-columns: 1fr 1fr;
  }

  .agent_trace_sim_meta_row .agent_trace_field--grow {
    grid-column: 1 / -1;
  }
}

.agent_trace_sim_col {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 0.45rem;
  padding: 0.45rem 0.55rem;
  min-height: 0;
}

.agent_trace_sim_col h3 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin: 0 0 0.3rem;
}

.agent_trace_sim_col--original {
  border-left: 3px solid var(--stone);
}

.agent_trace_sim_col--result {
  border-left: 3px solid var(--info);
}

.agent_trace_sim_result_meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
  margin-bottom: 0.35rem;
}

.agent_trace_sim_col_chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0 0 0.35rem;
}

.agent_trace_sim_metrics {
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--white);
  padding: 0.35rem 0.5rem;
  overflow-x: auto;
}

.agent_trace_sim_metrics_table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.agent_trace_sim_metrics_table th,
.agent_trace_sim_metrics_table td {
  text-align: left;
  padding: 0.2rem 0.55rem 0.2rem 0;
  border-bottom: 1px solid var(--neutral-tint);
  color: var(--ink-soft);
  white-space: nowrap;
}

.agent_trace_sim_metrics_table th[scope="col"] {
  color: var(--stone);
  font-weight: 600;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.agent_trace_sim_metrics_table th[scope="row"] {
  font-weight: 600;
  color: var(--text-secondary);
  padding-right: 0.75rem;
}

.agent_trace_sim_metrics_table tr:last-child th,
.agent_trace_sim_metrics_table tr:last-child td {
  border-bottom: none;
}

.agent_trace_sim_delta--better {
  color: var(--success);
  font-weight: 600;
}

.agent_trace_sim_delta--worse {
  color: var(--orange-dark);
  font-weight: 600;
}

.agent_trace_waterfall_footer {
  margin-top: 0.65rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.agent_trace_inspector_meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

.agent_trace_inspector_meta dt {
  color: var(--stone);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.agent_trace_inspector_meta dd {
  margin: 0;
  color: var(--ink);
  word-break: break-all;
}

.agent_trace_pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  background: var(--ink);
  color: var(--line);
  border-radius: 0.5rem;
  padding: 0.65rem;
  overflow: auto;
  max-height: 16rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.agent_trace_pre--inline {
  margin-top: 0.35rem;
  max-height: 8rem;
  font-size: 0.7rem;
}

.agent_trace_pre--error {
  background: var(--error);
  color: var(--error-tint);
}

.agent_trace_error_title {
  color: var(--error) !important;
}

.agent_trace_muted {
  color: var(--stone);
  font-size: 0.875rem;
}

.agent_trace_messages {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 28rem;
  overflow: auto;
}

.agent_trace_msg {
  border-radius: 0.5rem;
  padding: 0.45rem 0.6rem;
  font-size: 0.85rem;
  background: var(--canvas);
  border: 1px solid var(--neutral-tint);
  display: block;
  width: 100%;
  text-align: left;
  box-sizing: border-box;
}

.agent_trace_msg--clickable {
  cursor: pointer;
  font: inherit;
}

.agent_trace_msg--clickable:hover {
  border-color: var(--info);
}

.agent_trace_msg--highlight {
  outline: 2px solid var(--vibrant-blue);
  outline-offset: 1px;
  border-color: var(--info);
}

.agent_trace_msg--user {
  background: var(--info-tint);
  border-color: var(--info-tint);
}

.agent_trace_msg--assistant {
  background: var(--wash-green);
  border-color: var(--success-tint);
}

.agent_trace_msg--tool {
  background: var(--wash-violet);
  border-color: var(--wash-violet);
  opacity: 0.9;
  font-size: 0.8rem;
}

.agent_trace_msg_role {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
}

.agent_trace_msg_body {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink);
}

.agent_trace_chip--compact {
  background: var(--wash-violet);
  border-color: var(--wash-violet);
}

.agent_trace_payload {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.agent_trace_payload h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
}

.agent_trace_payload_chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.agent_trace_payload_block {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--white);
}

.agent_trace_payload_block summary {
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
}

.agent_trace_payload_block summary code {
  font-size: 0.75rem;
  word-break: break-all;
}

.agent_trace_payload_block--sent {
  background: var(--wash-cool);
}

.agent_trace_payload_msgs {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.agent_trace_payload_msg {
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  padding: 0.35rem 0.5rem;
  background: var(--white);
}

.agent_trace_payload_msg_body {
  margin-top: 0.15rem;
}

.agent_trace_payload_msg_body summary {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

@media (max-width: 650px) {
  .agent_trace_payload_block summary {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
  }
}

.agent_trace_sim_msg--prefix,
.agent_trace_sim_msg--previous_response {
  background: var(--wash-violet);
  border-color: var(--wash-violet);
}

.agent_trace_sim_msg_role--prefix,
.agent_trace_sim_msg_role--previous_response,
.agent_trace_sim_msg_role--compaction {
  color: var(--navy);
}

.agent_trace_sim_msg_explode {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.8rem;
}

.agent_trace_sim_msg_explode summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 600;
}

.agent_trace_sim_msg_explode summary code {
  font-weight: 500;
  word-break: break-all;
}

.agent_trace_step_meta {
  margin: 0.35rem 0 0.5rem;
  font-size: 0.8rem;
}

.agent_trace_step_meta summary {
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
}

.agent_trace_sim_status:empty {
  display: none;
}

.agent_trace_sim_mode {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
}

.agent_trace_sim_msg--prefix .agent_trace_sim_msg_head,
.agent_trace_sim_msg--previous_response .agent_trace_sim_msg_head {
  align-items: flex-start;
}