.process-group {
  display: inline-flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  margin: var(--spacing-xs) 0;
  padding: var(--spacing-xs) 0;
  min-width: 200px;
  max-width: 100%;
  box-sizing: border-box;
  flex-shrink: 0;
}

/* Embedded Process Group inside Response */
.process-group.embedded {
  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  /* border-bottom: 1px solid rgba(255, 255, 255, 0.08); */
  background: transparent;
}

/* Message container with embedded process group */
.message-container.has-process-group {
  display: inline-flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  min-width: 200px;
  max-width: 100%;
}

.message-container.has-process-group > .message {
  border: none;
  background: transparent;
  margin: 0;
}

/* Process Group Header */
.process-group-header {
  display: flex;
  align-items: center;
  padding: 0;
  cursor: pointer;
  user-select: none;
  transition: opacity 0.15s ease;
  min-height: 22px;
  gap: 6px;
  white-space: nowrap;
}

.process-group-header:hover {
  opacity: 0.85;
}

/* Expand/collapse triangle - CSS-only (no Material Icons) */
.process-group-header .expand-icon {
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 4px 0 4px 6px;
  border-color: transparent transparent transparent var(--color-text);
  opacity: 0.5;
  transition: transform 0.2s ease, opacity 0.15s ease;
  flex-shrink: 0;
  font-size: 0; /* Hide any text content */
  margin-right: 2px;
}

.process-group-header:hover .expand-icon {
  opacity: 0.8;
}

.process-group.expanded .process-group-header .expand-icon {
  transform: rotate(90deg);
}

/* Group icon removed - using status badges */
.process-group-header .group-icon {
  display: none;
}

/* Group title - prominent display */
.process-group-header .group-title {
  flex: 0 1 auto;
  font-size: var(--font-size-medium);
  font-weight: 500;
  color: var(--color-text);
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 350px;
}

/* Step count badge */
.process-group-header .step-count {
  font-size: 0.65rem;
  color: var(--color-text);
  opacity: 0.5;
  flex-shrink: 0;
  padding: 1px 6px;
  font-family: var(--font-family-code);
}

/* ===========================================
   3-Letter Status Code Badges
   =========================================== */

/* Base status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 600;
  font-family: var(--font-family-code);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  line-height: 1;
}

/* Status badge with icon */
.status-badge .material-symbols-outlined {
  font-size: 0.8rem;
  line-height: 1;
}

/* Badge icon styling */
.status-badge .badge-icon {
  font-size: 0.7rem;
  margin-right: 2px;
  opacity: 0.9;
}

/* Status colors - mapped from backend types via store */
/* Each status defines --step-accent for cascading to internal icons */

/* GEN - agent type (blue/cyan) */
.status-gen {
  --step-accent: #38bdf8;
  color: var(--step-accent);
}

/* END - response/done type (green) */
.status-end {
  --step-accent: #22c55e;
  color: var(--step-accent);
}

/* USE - tool usage (amber/yellow) */
.status-tool {
  --step-accent: #fbbf24;
  color: var(--step-accent);
}

/* MCP - mcp type (amber/yellow) */
.status-mcp {
  --step-accent: #fbbf24;
  color: var(--step-accent);
}

/* SUB - subagent type (teal) */
.status-sub {
  --step-accent: #14b8a6;
  color: var(--step-accent);
}

/* EXE - code_exe type (magenta/purple) */
.status-exe {
  --step-accent: #ba68c8;
  color: var(--step-accent);
}

/* BRW - browser type (indigo) */
.status-brw {
  --step-accent: #818cf8;
  color: var(--step-accent);
}

/* WAIT - progress type (slate) */
.status-wait {
  --step-accent: #94a3b8;
  color: var(--step-accent);
}

/* INF - info type (gray) */
.status-inf {
  --step-accent: #94a3b8;
  color: var(--step-accent);
}

/* HNT - hint type (yellow-green) */
.status-hnt {
  --step-accent: #a3e635;
  color: var(--step-accent);
}

/* WRN - warning type (orange) */
.status-wrn {
  --step-accent: #f97316;
  color: var(--step-accent);
}

/* ERR - error type (red) */
.status-err {
  --step-accent: #ef4444;
  color: var(--step-accent);
}

/* UTL - util type (gray-blue) */
.status-utl {
  --step-accent: #64748b;
  color: var(--step-accent);
}

/* USR - user type (sky) */
.status-usr {
  --step-accent: #38bdf8;
  color: var(--step-accent);
}

/* Animated spinner for active status (CSS-only, no Material Icons) */
.status-badge.status-active::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 4px;
  flex-shrink: 0;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Don't show spinner pseudo-element on END/ERR (they have their own indicators) */
.status-badge.status-end::after,
.status-badge.status-err::after {
  display: none;
}

/* END status with checkmark icon (icon added via JS, no ::before needed) */

/* Completed process group styling */
.process-group-completed {
  opacity: 0.95;
}

.process-group-completed .group-status {
  font-weight: 700;
}

/* Subtle completion indicator on the expand icon */
.process-group-completed .expand-icon {
  color: #22c55e;
}

/* Group status badge in header */
.process-group-header .group-status {
  margin-left: var(--spacing-xs);
}

/* Metrics row */
.process-group-header .group-metrics {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: auto;
  font-size: 0.65rem;
  font-family: var(--font-family-code);
  color: var(--color-text);
  opacity: 0.8;
}

.process-group-header .group-metrics .material-symbols-outlined {
  font-size: 0.75rem;
  opacity: 0.7;
}

.process-group-header .group-metrics span[class^="metric-"] {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

/* Legacy timestamp/duration (for backwards compatibility) */
.process-group-header .group-timestamp {
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.65);
  flex-shrink: 0;
  font-family: var(--font-family-code);
  display: none; /* Hidden, replaced by metrics */
}

.process-group-header .group-duration {
  font-size: 0.7rem;
  color: #81c784;
  flex-shrink: 0;
  font-family: var(--font-family-code);
  min-width: 40px;
  text-align: right;
  display: none; /* Hidden, replaced by metrics */
}

/* Process Group Content - Animated expand/collapse */
.process-group-content {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0;
  padding-top: 0;
  border-top: 1px solid transparent;
  transition: grid-template-rows 0.25s ease-out, 
              opacity 0.2s ease-out,
              margin-top 0.25s ease-out,
              padding-top 0.25s ease-out,
              border-color 0.2s ease-out;
  overflow: hidden;
}

.process-group-content > .process-steps {
  min-height: 0;
}

.process-group.expanded .process-group-content {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: var(--spacing-xs);
  padding-top: var(--spacing-xs);
  /* border-top-color: var(--color-border); */
}

/* Process Steps List */
.process-steps {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Individual Process Step */
.process-step {
  display: flex;
  flex-direction: column;
  padding: 0.1em;
  transition: background-color 0.15s ease;
}

.step-expanded {
  padding: var(--spacing-xs) 0;
}

/* Utility/Info/Hint steps have subtle background tint */
.process-step[data-type="util"],
.process-step[data-type="info"],
.process-step[data-type="hint"] {
  background-color: rgba(120, 115, 100, 0);
}

.process-step[data-type="util"]:hover,
.process-step[data-type="info"]:hover,
.process-step[data-type="hint"]:hover {
  background-color: rgba(255, 255, 255, 0.03);
}


.light-mode .process-step[data-type="util"]:hover,
.light-mode .process-step[data-type="info"]:hover,
.light-mode .process-step[data-type="hint"]:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

/* Step Header (clickable) */
.process-step-header {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  gap: 4px;
  min-height: 18px;
}

/* Step icon removed - using status badges instead */
.process-step-header .step-icon {
  display: none;
}

/* Step type label removed - using status badges instead */
.process-step-header .step-type {
  display: none;
}

/* Step title */
.process-step-header .step-title {
  flex: 1;
  font-size: 0.8rem;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-left: var(--spacing-xs);
}

/* Step expand icon - CSS triangle (no Material Icons) */
.process-step-header .step-expand-icon {
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 3px 0 3px 5px;
  border-color: transparent transparent transparent var(--color-text);
  opacity: 0.4;
  transition: transform 0.2s ease, opacity 0.15s ease;
  flex-shrink: 0;
  font-size: 0; /* Hide any text content */
  margin-right: 2px;
}

.process-step-header:hover .step-expand-icon {
  opacity: 0.7;
}

/* Use direct child selector to prevent affecting nested steps */
.process-step.step-expanded > .process-step-header > .step-expand-icon {
  transform: rotate(90deg);
}

/* Step Detail Content - Animated expand/collapse */
.process-step-detail {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0;
  transition: grid-template-rows 0.2s ease-out, opacity 0.15s ease-out, margin-top 0.2s ease-out;
  overflow: hidden;
  -webkit-overflow-scrolling: touch; /* smooth scrolling on iOS */
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
  overscroll-behavior: contain; /* avoid scroll chaining */
}

.process-step:not(.step-expanded) > .process-step-detail {
  margin-top: 0;
}

.process-step:not(.step-expanded) > .process-step-detail > .process-step-detail-content {
  padding: 0;
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
}
  /* Hide scrollbar for Chrome/Safari/Webkit */
.process-step-detail::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.process-step-detail-content::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.process-step-detail > .process-step-detail-content {
  min-height: 0;
}

/* Use direct child selector (>) to prevent cascading to nested steps */
.process-step.step-expanded > .process-step-detail {
  grid-template-rows: 1fr;
  opacity: 1;
  overflow: visible;
  margin-top: var(--spacing-xs);
}

.process-step.step-expanded > .process-step-detail > .process-step-detail-content {
  max-height: 300px;
  overflow-y: auto;
}

.process-step-detail-content {
  transition: max-height 0.2s ease-out, padding 0.2s ease-out, margin-top 0.2s ease-out;
  padding: var(--spacing-xs) 0;
  margin-top: var(--spacing-xxs);
  margin-left: 28px; /* Align with icon */
  background-color: transparent;
  font-size: 0.7rem;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch; /* smooth scrolling on iOS */
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
  overscroll-behavior: contain; /* avoid scroll chaining */
}

.process-step-detail-content pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-family-code);
  font-size: 0.7rem;
  color: var(--color-text);
  /* opacity: 0.8; */
}

/* KVPs in step detail - CSS Grid for aligned columns */
.process-step-detail-content .step-kvps {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-xs) var(--spacing-sm);
  align-items: start;
}

.process-step-detail-content .step-kvp {
  display: contents; /* Children participate in parent grid */
}

.process-step-detail-content .step-kvp-key {
  color: var(--step-accent, var(--color-primary));
  font-weight: 500;
  opacity: 0.8;
  display: flex;
  align-items: center;
  justify-content: end;
}

.process-step-detail-content .step-kvp-key .material-symbols-outlined {
  font-size: 0.9rem;
  color: var(--step-accent, var(--color-primary)) !important;
}

.process-step-detail-content .step-kvp-value {
  color: var(--color-text);
  opacity: 0.85;
  word-break: break-word;
  white-space: pre-wrap;
  font-size: 0.75rem;
  line-height: 1.5;
}

/* Thoughts styling - single icon with plain text */
.process-step-detail-content .step-thoughts {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin: var(--spacing-xs) 0;
}

.process-step-detail-content .thought-icon {
  font-size: 0.85rem;
  color: var(--step-accent, #38bdf8);
  flex-shrink: 0;
  margin-top: 2px;
}

.process-step-detail-content .thought-text {
  font-size: 0.7rem;
  font-weight: 300;
  color: var(--color-text);
  opacity: 0.65;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Light mode thoughts - uses step accent if available */
.light-mode .process-step-detail-content .thought-icon {
  color: var(--step-accent, #b45309);
}

/* Tool arguments - CSS Grid for aligned columns */
.process-step-detail-content .step-tool-args {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 8px;
  margin: var(--spacing-xs) 0;
  align-items: baseline;
}

.process-step-detail-content .tool-arg-row {
  display: contents; /* Children participate in parent grid */
}

.process-step-detail-content .tool-arg-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--step-accent, var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: end;
}

.process-step-detail-content .tool-arg-label .material-symbols-outlined {
  font-size: 0.9rem;
  opacity: 0.85;
  color: var(--step-accent, var(--color-primary));
}

.process-step-detail-content .tool-arg-value {
  font-size: 0.7rem;
  color: var(--color-text);
  opacity: 0.85;
  word-break: break-word;
  font-family: var(--font-family-code);
}

/* Light mode tool args - transparent like dark mode */
.light-mode .process-step-detail-content .step-tool-args {
  background: transparent;
  border-left-color: transparent;
}

.process-step-detail-content .step-tool-header .tool-icon {
  font-size: 0.85rem;
  color: var(--step-accent, var(--color-warning));
  opacity: 0.85;
}

.process-step-detail-content .step-tool-header .tool-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--step-accent, var(--color-warning));
  opacity: 0.85;
}

.process-step-detail-content .step-tool-header .tool-name {
  font-size: 0.72rem;
  color: var(--color-text);
  opacity: 0.85;
}

/* Terminal-style output for code_exe */
.process-step-detail-content .step-terminal {
  margin: var(--spacing-xs) 0;
  font-family: var(--font-family-code);
  font-size: 0.72rem;
}

.process-step-detail-content .terminal-output {
  margin: var(--spacing-xs) 0 0 0;
  padding: var(--spacing-xs);
  background: rgba(0, 0, 0, 0.8);
  border-radius: 4px;
  color: #c9d1d9;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch; /* smooth scrolling on iOS */
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
  overscroll-behavior: contain; /* avoid scroll chaining */
}

.process-step-detail-content .terminal-output::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

/* Light mode terminal */
.light-mode .process-step-detail-content .terminal-output {
  background: rgba(0, 0, 0, 0.05);
  color: black;
}

/* Light mode adjustments */
.light-mode .process-group.expanded .process-group-content {
  border-top-color: rgba(0, 0, 0, 0.06);
}

.light-mode .process-step-detail-content {
  background-color: transparent;
}

/* Light mode text colors for process group */
.light-mode .process-group-header .group-title,
.light-mode .process-step-header .step-title {
  color: var(--color-text);
}

/* Light mode status badge adjustments for better contrast */
/* Override --step-accent for cascading to internal icons */
.light-mode .status-gen {
  --step-accent: #0284c7;
  color: var(--step-accent);
}

.light-mode .status-end {
  --step-accent: #15803d;
  color: var(--step-accent);
}

.light-mode .status-tool {
  --step-accent: #b45309;
  color: var(--step-accent);
}

.light-mode .status-mcp {
  --step-accent: #b45309;
  color: var(--step-accent);
}

.light-mode .status-sub {
  --step-accent: #0f766e;
  color: var(--step-accent);
}

.light-mode .status-exe {
  --step-accent: #7c3aed;
  color: var(--step-accent);
}

.light-mode .status-brw {
  --step-accent: #4f46e5;
  color: var(--step-accent);
}

.light-mode .status-wait {
  --step-accent: #475569;
  color: var(--step-accent);
}

.light-mode .status-inf {
  --step-accent: #475569;
  color: var(--step-accent);
}

.light-mode .status-hnt {
  --step-accent: #65a30d;
  color: var(--step-accent);
}

.light-mode .status-wrn {
  --step-accent: #c2410c;
  color: var(--step-accent);
}

.light-mode .status-err {
  --step-accent: #b91c1c;
  color: var(--step-accent);
}

.light-mode .status-utl {
  --step-accent: #334155;
  color: var(--step-accent);
}

.light-mode .status-usr {
  --step-accent: #0284c7;
  color: var(--step-accent);
}

/* Animation for loading state */
@keyframes pulse-step {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

.process-step.loading .step-icon {
  animation: pulse-step 1.2s ease-in-out infinite;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .process-group {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .process-step-header .step-type {
    display: none;
  }
  
  .process-step-header .step-title {
    font-size: 0.7rem;
  }
  
  .process-step-detail-content {
    margin-left: 16px;
  }
}

/* ===========================================
   Preferences Visibility Controls
   These rules work with preferences-store toggles
   =========================================== */

/* Utility steps - default hidden (controlled by showUtils) */
.process-step.message-util {
  display: none;
}

.process-step.message-util.show-util {
  display: flex;
}

/* Thoughts KVP row */
.step-kvp.msg-thoughts {
  display: none;
}

/* JSON pre content - default hidden */
.process-step-detail-content pre.msg-json {
  display: none;
}

/* Nested Process Steps (Subordinate Agents) */

.process-nested-container {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  transition: grid-template-rows 0.25s ease-out, opacity 0.2s ease-out;
  gap: 2px;
}

/* Only show nested container when parent step is expanded */
.process-step.step-expanded > .process-nested-container {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 2px;
  /* Keep overflow hidden to allow nested steps to control their own expansion */
}

/* Inner wrapper to handle grid transition content */
.process-nested-inner {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* All nested containers have same indentation (no cascading) */
.nested-step .process-nested-container {
  margin-left: 0;
}

/* Response content in process steps */
.process-step-detail-content .step-response-content {
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--color-text);
  opacity: 0.9;
  margin: var(--spacing-xs) 0;
}

.process-step-detail-content .step-response-content p {
  margin: 0.5em 0;
}

.process-step-detail-content .step-response-content ul,
.process-step-detail-content .step-response-content ol {
  margin: 0.5em 0;
  padding-left: 1.5em;
}

/* Warning/error content in process steps */
.process-step-detail-content .step-warning-content {
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--color-warning);
  opacity: 0.9;
  margin: var(--spacing-xs) 0;
  padding: var(--spacing-xs);
  background: rgba(255, 165, 0, 0.08);
  border-left: 2px solid var(--color-warning);
  border-radius: 3px;
}

/* Browser screenshot content in process steps */
.process-step-detail-content .screenshot-img {
  max-width: 100%;
  max-height: 400px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  object-fit: contain;
}

.process-step-detail-content .screenshot-img:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Light mode screenshot border */
.light-mode .process-step-detail-content .screenshot-img {
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.light-mode .process-step-detail-content .screenshot-img:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}