/* ============================================================================
   ALPHA COMMAND CENTRE v4 - ALPHA BRANDING
   ============================================================================ */

:root {
  /* Core Brand */
  --alpha-white: #FFFFFF;
  --alpha-red: #C21C39;
  --alpha-black: #000000;

  /* UI Backgrounds */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;

  /* Message Colors */
  --requestor-bg: #1a2332;
  --requestor-border: #2d4a6a;
  --claude-bg: #12121a;
  --claude-border: #C21C39;

  /* Tool/System Colors */
  --tool-bg: #0f1419;
  --tool-border: #2a3a2a;
  --result-success: #22c55e;
  --result-error: #ef4444;

  /* Text */
  --text-primary: #e5e5e5;
  --text-secondary: #888;
  --text-muted: #555;

  /* Accent */
  --accent-teal: #00d4aa;
  --accent-red: #C21C39;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Fixed viewport - NO PAGE SCROLL */
html, body {
  height: 100vh;
  overflow: hidden;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
}

/* ============================================================================
   HEADER
   ============================================================================ */

header {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--bg-tertiary);
  flex-shrink: 0;  /* Don't shrink - fixed height */
}

header h1 {
  font-size: 1.5rem;
  color: var(--alpha-white);
  font-weight: 600;
}

header h1 .alpha {
  color: var(--accent-red);
}

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

.header-info span {
  margin-left: 1rem;
}

/* ============================================================================
   MAIN LAYOUT
   ============================================================================ */

main {
  display: flex;
  flex: 1;
  min-height: 0;  /* CRITICAL: Allow nested flex scroll */
  overflow: hidden;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

#sidebar {
  width: 300px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--bg-tertiary);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.search-box {
  padding: 1rem;
  border-bottom: 1px solid var(--bg-tertiary);
}

.search-box input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--bg-tertiary);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-teal);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

#sessions-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

/* Session Groups */
.session-group {
  margin-bottom: 0.5rem;
}

.group-header {
  display: flex;
  align-items: center;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.group-header:hover {
  color: var(--text-primary);
}

.group-toggle::before {
  content: '>';
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.2s;
}

.session-group:not(.collapsed) .group-toggle::before {
  transform: rotate(90deg);
}

.group-count {
  margin-left: auto;
  color: var(--text-muted);
}

.group-content {
  display: block;
}

.session-group.collapsed .group-content {
  display: none;
}

/* Projects */
.project {
  margin-bottom: 0.25rem;
}

.project-header {
  display: flex;
  align-items: center;
  padding: 0.4rem 0.5rem;
  cursor: pointer;
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.project-header:hover {
  background: var(--bg-tertiary);
}

.project-toggle::before {
  content: '>';
  display: inline-block;
  margin-right: 0.5rem;
  font-size: 0.75rem;
  transition: transform 0.2s;
  color: var(--text-muted);
}

.project:not(.collapsed) .project-toggle::before {
  transform: rotate(90deg);
}

.project-name {
  flex: 1;
}

.project-count {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.project-sessions {
  margin-left: 1rem;
  display: block;
}

.project.collapsed .project-sessions {
  display: none;
}

/* Session Items */
.session-item {
  padding: 0.6rem 0.5rem;
  cursor: pointer;
  border-radius: 6px;
  margin-bottom: 2px;
  border-left: 3px solid transparent;
}

.session-item:hover {
  background: var(--bg-tertiary);
}

.session-item.selected {
  background: var(--bg-tertiary);
  border-left-color: var(--accent-red);
}

.session-title {
  font-size: 0.85rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
}

.active-dot {
  width: 8px;
  height: 8px;
  background: var(--result-success);
  border-radius: 50%;
  margin-right: 0.5rem;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.session-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Agent count badge */
.agent-badge {
  background: var(--accent-red);
  color: var(--alpha-white);
  padding: 0.1rem 0.4rem;
  border-radius: 10px;
  font-size: 0.65rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.no-sessions {
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 0.5rem;
  font-style: italic;
}

/* ============================================================================
   SESSION VIEW
   ============================================================================ */

#session-view {
  flex: 1;
  display: none;
  flex-direction: column;
  min-height: 0;  /* CRITICAL: Allow nested flex scroll */
  overflow: hidden;
  position: relative;  /* For jump-to-bottom button */
}

#session-view.active {
  display: flex;
}

#session-header {
  padding: 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--bg-tertiary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;  /* Fixed height header */
}

.session-info {
  display: flex;
  align-items: center;
}

.session-titles {
  display: flex;
  flex-direction: column;
}

#session-title {
  font-weight: 600;
  color: var(--text-primary);
}

#session-path {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.session-stats {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--bg-tertiary);
  font-size: 0.75rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
}

.stat-icon {
  font-size: 0.9rem;
}

.stat-value {
  color: var(--text-primary);
  font-weight: 500;
}

.stat-item.agents {
  cursor: pointer;
  position: relative;
}

.stat-item.agents:hover {
  color: var(--accent-teal);
}

.agents-tooltip {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--bg-tertiary);
  border-radius: 6px;
  padding: 0.5rem;
  min-width: 200px;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.stat-item.agents:hover .agents-tooltip {
  display: block;
}

.agents-tooltip-title {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.agents-tooltip-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 4px;
  margin: 0.15rem 0;
}

.agents-tooltip-item.clickable {
  cursor: pointer;
  transition: background 0.2s;
}

.agents-tooltip-item.clickable:hover {
  background: var(--bg-tertiary);
}

.tooltip-arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.agents-tooltip-item.clickable:hover .tooltip-arrow {
  color: var(--accent-teal);
}

.session-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.live-badge {
  background: var(--result-success);
  color: var(--bg-primary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  animation: pulse 2s infinite;
}

.auto-scroll-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.auto-scroll-label input {
  margin-right: 0.25rem;
}

#session-content {
  flex: 1;
  overflow-y: auto;
  min-height: 0;  /* CRITICAL: Enable internal scroll */
  padding: 1rem;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

/* Messages align to bottom when few messages */
#session-content .messages-list {
  margin-top: auto;
}

/* Jump to bottom button */
.jump-to-bottom {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-teal);
  color: var(--accent-teal);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: all 0.2s;
  z-index: 50;
}

.jump-to-bottom:hover {
  background: rgba(0, 212, 170, 0.15);
  transform: translateY(-2px);
}

.jump-arrow {
  font-size: 1rem;
}

#session-content .placeholder {
  color: var(--text-muted);
  text-align: center;
  margin-top: 2rem;
}

/* ============================================================================
   MESSAGE BUNDLES (V4 - Grouped Messages)
   ============================================================================ */

.message-bundle {
  margin-bottom: 1.5rem;
  border-radius: 0 8px 8px 0;
  overflow: hidden;
}

/* Requestor (formerly Human) */
.message-bundle.requestor {
  background: var(--requestor-bg);
  border-left: 3px solid var(--requestor-border);
}

.message-bundle.requestor .bundle-header {
  background: rgba(45, 74, 106, 0.3);
}

.message-bundle.requestor .bundle-label {
  color: var(--accent-teal);
}

/* Claude */
.message-bundle.claude {
  background: var(--claude-bg);
  border-left: 3px solid var(--accent-red);
}

.message-bundle.claude .bundle-header {
  background: rgba(194, 28, 57, 0.15);
}

.message-bundle.claude .bundle-label {
  color: var(--accent-red);
}

.bundle-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
}

.bundle-label {
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.bundle-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.block-count {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
}

.bundle-content {
  padding: 1rem;
}

/* ============================================================================
   CONTENT BLOCKS
   ============================================================================ */

.text-block {
  font-family: 'Segoe UI', -apple-system, sans-serif;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.text-block:last-child {
  margin-bottom: 0;
}

/* Thinking block (collapsed by default) */
.thinking-block {
  background: var(--bg-tertiary);
  border-radius: 6px;
  margin: 0.5rem 0;
  font-size: 0.85rem;
}

.thinking-block summary {
  padding: 0.6rem 0.75rem;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

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

.thinking-block summary::before {
  content: '>';
  display: inline-block;
  transition: transform 0.2s;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.thinking-block[open] summary::before {
  transform: rotate(90deg);
}

.thinking-block .thinking-icon {
  font-size: 1rem;
}

.thinking-block .thinking-label {
  color: #bb88ee;
  font-weight: 600;
}

.thinking-block .thinking-preview {
  color: var(--text-muted);
  font-style: italic;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.thinking-block .thinking-content {
  padding: 0.75rem;
  border-top: 1px solid var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
}

/* Tool block (collapsed by default) */
.tool-block {
  background: var(--tool-bg);
  border: 1px solid var(--tool-border);
  border-radius: 6px;
  margin: 0.5rem 0;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
}

.tool-block summary {
  padding: 0.6rem 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

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

.tool-block summary::before {
  content: '>';
  display: inline-block;
  transition: transform 0.2s;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.tool-block[open] summary::before {
  transform: rotate(90deg);
}

.tool-block .tool-icon {
  font-size: 1rem;
}

.tool-block .tool-name {
  color: var(--accent-teal);
  font-weight: 600;
}

.tool-block .tool-preview {
  color: var(--text-muted);
  font-size: 0.75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 400px;
}

.tool-block .tool-input {
  padding: 0.75rem;
  border-top: 1px solid var(--bg-tertiary);
}

.tool-block .tool-input pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--text-secondary);
}

/* Tool result (nested under tool_use) */
.tool-result {
  margin: 0.5rem;
  padding: 0.6rem;
  border-radius: 4px;
  background: var(--bg-primary);
}

.tool-result.success {
  border-left: 2px solid var(--result-success);
}

.tool-result.error {
  border-left: 2px solid var(--result-error);
}

.tool-result .result-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

.tool-result .result-icon {
  font-size: 0.9rem;
}

.tool-result.success .result-label {
  color: var(--result-success);
}

.tool-result.error .result-label {
  color: var(--result-error);
}

.tool-result .result-content {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 300px;
  overflow-y: auto;
}

/* Code blocks */
.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--bg-tertiary);
  border-radius: 6px;
  padding: 0.75rem;
  overflow-x: auto;
  margin: 0.5rem 0;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
}

.inline-code {
  background: var(--bg-tertiary);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
}

/* ============================================================================
   AGENTS SECTION
   ============================================================================ */

.agents-section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--bg-tertiary);
}

.agents-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.agents-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.agent-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg-tertiary);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}

.agent-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.agent-icon {
  font-size: 1.2rem;
}

.agent-info {
  flex: 1;
}

.agent-type {
  font-size: 0.8rem;
  font-weight: 600;
}

.agent-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ============================================================================
   LOAD MORE BUTTON
   ============================================================================ */

.load-more-container {
  text-align: center;
  padding: 1rem;
  border-bottom: 1px solid var(--bg-tertiary);
  margin-bottom: 1rem;
}

.load-more-btn {
  background: var(--bg-tertiary);
  color: var(--accent-teal);
  border: 1px solid var(--accent-teal);
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.load-more-btn:hover {
  background: rgba(0, 212, 170, 0.1);
}

.load-more-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================================
   BACK BUTTON
   ============================================================================ */

.back-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  margin-right: 0.5rem;
  font-size: 1.2rem;
  transition: color 0.2s;
}

.back-btn:hover {
  color: var(--accent-teal);
}

/* ============================================================================
   WELCOME VIEW
   ============================================================================ */

#welcome-view {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  min-height: 0;  /* Allow proper flex sizing */
}

/* Hide welcome when session is open */
#session-view.active ~ #welcome-view {
  display: none;
}

.welcome-content {
  text-align: center;
  color: var(--text-muted);
}

.welcome-content h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 300;
}

.welcome-content h2 .alpha {
  color: var(--accent-red);
  font-weight: 600;
}

.welcome-content h2 .title {
  color: var(--text-primary);
}

.welcome-content p {
  margin: 0.5rem 0;
}

.welcome-tips {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--bg-tertiary);
}

.welcome-tips p {
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.welcome-tips kbd {
  background: var(--bg-tertiary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  color: var(--accent-teal);
  font-family: inherit;
  margin-right: 0.5rem;
}

/* ============================================================================
   SESSION SEARCH & QUICK ACTIONS
   ============================================================================ */

#message-count {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-right: 1rem;
}

.session-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-right: 1rem;
}

.session-search input {
  padding: 0.35rem 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--bg-tertiary);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 0.8rem;
  width: 150px;
}

.session-search input:focus {
  outline: none;
  border-color: var(--accent-teal);
}

.session-search input::placeholder {
  color: var(--text-muted);
}

#search-results {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.search-highlight {
  background: rgba(255, 255, 0, 0.4);
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

.search-highlight.current-match {
  background: #ff0;
  color: #000;
  outline: 2px solid var(--accent-teal);
}

.search-nav-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.1rem 0.3rem;
  font-size: 0.65rem;
  transition: color 0.2s;
}

.search-nav-btn:hover {
  color: var(--accent-teal);
}

.search-count {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0 0.25rem;
}

.quick-actions {
  display: flex;
  gap: 0.25rem;
  margin-right: 1rem;
}

.action-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.35rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.7rem;
  transition: all 0.2s;
}

.action-btn:hover {
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent-teal);
  border-color: var(--accent-teal);
}

.action-icon {
  font-weight: 600;
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
  animation: toastIn 0.3s ease-out;
  z-index: 1000;
}

.toast.success {
  background: rgba(34, 197, 94, 0.2);
  color: var(--result-success);
  border: 1px solid var(--result-success);
}

.toast.error {
  background: rgba(239, 68, 68, 0.2);
  color: var(--result-error);
  border: 1px solid var(--result-error);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ============================================================================
   FOOTER
   ============================================================================ */

footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--bg-tertiary);
  padding: 1rem;
  flex-shrink: 0;  /* ALWAYS visible - never shrink */
}

footer h3 {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

#containers-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

#containers-table th,
#containers-table td {
  padding: 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--bg-tertiary);
}

#containers-table th {
  color: var(--text-secondary);
  font-weight: normal;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.status-badge {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.status-badge.running {
  background: rgba(34, 197, 94, 0.2);
  color: var(--result-success);
}

.status-badge.stopped {
  background: rgba(239, 68, 68, 0.2);
  color: var(--result-error);
}

.footer-panels {
  display: flex;
  gap: 2rem;
}

#services {
  flex: 1;
}

#host-resources {
  flex: 1;
}

#services-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-badge {
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.service-badge.healthy {
  background: rgba(34, 197, 94, 0.2);
  color: var(--result-success);
}

.service-badge.error {
  background: rgba(239, 68, 68, 0.2);
  color: var(--result-error);
}

.resource-bar {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.resource-bar label {
  width: 40px;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.resource-bar .bar {
  flex: 1;
  height: 14px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
  margin: 0 0.5rem;
}

.resource-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-teal), var(--result-success));
  transition: width 0.3s;
}

.resource-bar .fill.swap {
  background: linear-gradient(90deg, #ff9500, #ffcc00);
}

.resource-bar span {
  min-width: 100px;
  text-align: right;
  color: var(--text-primary);
  font-size: 0.8rem;
}

/* ============================================================================
   SCROLLBAR
   ============================================================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ============================================================================
   LEGACY SUPPORT (backwards compatibility for old message format)
   ============================================================================ */

.message {
  margin-bottom: 1rem;
  border-radius: 6px;
  overflow: hidden;
}

.message-header {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
}

.message-role {
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.message-time {
  color: var(--text-muted);
}

.message-content {
  padding: 0.75rem;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  word-wrap: break-word;
}

.user-message, .human-message {
  background: var(--requestor-bg);
  border-left: 3px solid var(--requestor-border);
}

.user-message .message-header, .human-message .message-header {
  background: rgba(45, 74, 106, 0.3);
}

.user-message .message-role, .human-message .message-role {
  color: var(--accent-teal);
}

.assistant-message {
  background: var(--claude-bg);
  border-left: 3px solid var(--accent-red);
}

.assistant-message .message-header {
  background: rgba(194, 28, 57, 0.15);
}

.assistant-message .message-role {
  color: var(--accent-red);
}

.tool-message {
  background: var(--tool-bg);
  border-left: 3px solid var(--tool-border);
}

.tool-message .message-header {
  background: rgba(42, 58, 42, 0.3);
}

.tool-result-message {
  background: var(--bg-tertiary);
  border-left: 3px solid #6666aa;
}

.tool-result-message .message-header {
  background: rgba(102, 102, 170, 0.15);
}

.tool-result-message .message-role {
  color: #8888cc;
}

/* Collapsible blocks (legacy) */
.collapsible {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  margin: 0.5rem 0;
  overflow: hidden;
}

.collapsible-header {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.8rem;
  transition: background 0.2s;
}

.collapsible-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.collapse-icon {
  width: 16px;
  height: 16px;
  margin-right: 0.5rem;
  position: relative;
}

.collapse-icon::before {
  content: '>';
  font-size: 0.6rem;
  color: var(--text-muted);
  transition: transform 0.2s;
  display: inline-block;
}

.collapsible.collapsed .collapse-icon::before {
  transform: rotate(-90deg);
}

.block-label {
  font-weight: 600;
  margin-right: 0.75rem;
}

.block-preview {
  color: var(--text-muted);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.75rem;
}

.collapsible-content {
  padding: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  max-height: 400px;
  overflow-y: auto;
}

.collapsible.collapsed .collapsible-content {
  display: none;
}

.collapsible-content pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 0.8rem;
  line-height: 1.5;
}

.thinking-block-legacy {
  background: rgba(100, 50, 150, 0.2);
  border-left: 2px solid #9966cc;
}

.thinking-block-legacy .block-label {
  color: #bb88ee;
}

.tool-use-block {
  background: rgba(150, 100, 0, 0.2);
  border-left: 2px solid #ffaa00;
}

.tool-use-block .block-label {
  color: #ffcc44;
}

.tool-result-block {
  background: rgba(50, 50, 100, 0.2);
  border-left: 2px solid #6666aa;
}

.tool-result-block .block-label {
  color: #8888cc;
}

.tool-result-block.error {
  background: rgba(150, 50, 50, 0.2);
  border-left: 2px solid var(--result-error);
}

.tool-result-block.error .block-label {
  color: #ff6666;
}

.message-count-badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.empty-content {
  color: var(--text-muted);
  font-style: italic;
}

.new-message {
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
}