:root {
  --font-sans: "Inter", "Segoe UI", Arial, sans-serif;
  --font-mono: "Fira Code", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --transition-fast: 0.18s ease;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

body[data-theme="dark"] {
  --bg: #0b1120;
  --surface: #111827;
  --surface-alt: #1f2937;
  --border: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-contrast: #0f172a;
  --shadow: rgba(15, 23, 42, 0.4);
  --surface-glass: rgba(17, 24, 39, 0.86);
}

body[data-theme="light"] {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --border: #d0d7e2;
  --text: #0f172a;
  --muted: #475569;
  --accent: #3b82f6;
  --accent-contrast: #f8fafc;
  --shadow: rgba(15, 23, 42, 0.12);
  --surface-glass: rgba(248, 250, 252, 0.92);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: var(--surface-glass);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 36px;
  gap: 24px;
}

.brand {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.03em;
  white-space: nowrap;
  color: var(--accent);
}

.brand-flow {
  color: #22d3ee;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  font-size: 22px;
  line-height: 1;
}

.menu-toggle:hover {
  border-color: var(--accent);
}

.menu-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.45);
}

.menu {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.menu-item:hover,
.menu-item:focus-visible {
  background: rgba(59, 130, 246, 0.12);
  color: var(--text);
  transform: translateY(-1px);
}

.menu-item.active {
  background: var(--accent);
  color: var(--accent-contrast);
}

.menu-item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.45);
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.45);
}

.page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 32px 72px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.view {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.view.hidden {
  display: none;
}

.container,
.log-panel,
.metrics-panel,
.agent-panel,
.docs-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 18px 36px var(--shadow);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.container h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 600;
}

label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

textarea,
select,
input[type="number"],
input[type="text"] {
  max-width: 100%;
  background-color: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-size: 15px;
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

textarea:focus,
select:focus,
input[type="number"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.35);
}

textarea[readonly] {
  opacity: 0.95;
  cursor: default;
}

#response {
  min-height: 200px;
}

button {
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

#sendBtn {
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 14px 18px;
  font-size: 16px;
  box-shadow: 0 16px 28px rgba(59, 130, 246, 0.25);
}

#sendBtn:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 32px rgba(59, 130, 246, 0.3);
}

#sendBtn:active {
  transform: translateY(0);
  box-shadow: 0 8px 18px rgba(59, 130, 246, 0.22);
}

#sendBtn.send-btn-stop {
  background: rgba(248, 113, 113, 0.16);
  color: #fecaca;
  border: 1px solid rgba(248, 113, 113, 0.45);
  box-shadow: none;
}

#sendBtn.send-btn-stop:hover {
  background: rgba(248, 113, 113, 0.24);
  color: #fee2e2;
}

button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 16px;
  font-size: 14px;
  box-shadow: none;
}

button.secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}

button.secondary:active {
  transform: translateY(0);
}

button.danger {
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.35);
  padding: 10px 16px;
  box-shadow: none;
}

button.danger:hover {
  background: rgba(248, 113, 113, 0.18);
  border-color: #f87171;
  color: #fee2e2;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.chat-shell {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.chat-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.chat-heading {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.context-chip {
  align-self: flex-start;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 160px;
}

.field-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.context-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}

.context-toolbar .field {
  flex: 1 1 340px;
}

.context-stats {
  font-size: 14px;
  color: var(--muted);
}

.context-limits {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 16px;
  padding: 18px;
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  border: 1px dashed rgba(59, 130, 246, 0.22);
}

.context-limits .field {
  flex: 0 0 200px;
}

.auto-compact-info {
  font-size: 13px;
  color: var(--muted);
  max-width: 360px;
}

.persona-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 18px;
}

.persona-controls .field {
  flex: 1 1 320px;
}

.persona-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.persona-preset-info {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  max-width: 520px;
}

.chat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 24px;
  align-items: flex-start;
}

.history-panel,
.composer-panel {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 12px 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.history-header h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.history-actions {
  display: flex;
  gap: 10px;
}

.history-mode-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.history-mode-badge.ad-hoc {
  border-color: rgba(251, 191, 36, 0.45);
  background: rgba(251, 191, 36, 0.16);
  color: #f59e0b;
}

.conversation-history {
  max-height: 800px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 6px;
}

.history-placeholder {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.message {
  background: var(--surface);
  border: 1px solid rgba(59, 130, 246, 0.16);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.message-role-user {
  border-left-color: #60a5fa;
}

.message-role-assistant {
  border-left-color: #34d399;
}

.message-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.message-author {
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}

.message-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 14px;
}

.message-body code {
  background: rgba(59, 130, 246, 0.12);
  padding: 2px 4px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.message-markdown {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-markdown h1,
.message-markdown h2,
.message-markdown h3,
.message-markdown h4 {
  margin: 0;
  font-size: 16px;
}

.message-markdown p,
.message-markdown ul,
.message-markdown ol,
.message-markdown pre,
.message-markdown table {
  margin: 0;
}

.message-markdown ul,
.message-markdown ol {
  padding-left: 20px;
}

.message-markdown pre:not(.message-code-pre) {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 12px;
}

.message-markdown table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.message-markdown th,
.message-markdown td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.message-markdown th:last-child,
.message-markdown td:last-child {
  border-right: none;
}

.message-markdown tr:last-child td {
  border-bottom: none;
}

.message-markdown th {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--muted);
}

.message-markdown code {
  background: rgba(59, 130, 246, 0.12);
  padding: 2px 4px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.message-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.message-copy-btn,
.message-thinking-toggle {
  align-self: flex-start;
  background: rgba(59, 130, 246, 0.12);
  color: var(--text);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  box-shadow: none;
}

.message-copy-btn:hover,
.message-thinking-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.message-thinking {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-thinking-body {
  margin: 0;
  background: rgba(59, 130, 246, 0.08);
  border: 1px dashed rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
  max-height: 240px;
  overflow-y: auto;
}

.message-code-block {
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.22);
  overflow: hidden;
}

.message-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
  background: rgba(59, 130, 246, 0.08);
}

.message-code-lang {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}

.message-code-pre {
  margin: 0;
  padding: 12px;
  max-height: 340px;
  overflow: auto;
  white-space: pre;
  font-family: var(--font-mono);
  font-size: 12px;
}

.conversation-history::-webkit-scrollbar {
  width: 8px;
}

.conversation-history::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.4);
  border-radius: 999px;
}

.composer-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.checkbox-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  text-transform: none;
  letter-spacing: normal;
}

.checkbox-inline input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

#prompt {
  min-height: 180px;
}

.context-insights {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.context-insights h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.context-insights ul {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.log-panel {
  gap: 20px;
}

.log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.log-header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.log-header h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
}

.clear-log-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.clear-log-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.clear-log-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.35);
}

.log-entries {
  max-height: 90%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 6px;
}

.log-placeholder {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.log-entry {
  background: var(--surface-alt);
  border: 1px solid rgba(59, 130, 246, 0.12);
  border-left: 4px solid transparent;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.log-entry.log-info {
  border-left-color: #38bdf8;
}

.log-entry.log-success {
  border-left-color: #34d399;
}

.log-entry.log-warn {
  border-left-color: #fbbf24;
}

.log-entry.log-error {
  border-left-color: #f87171;
}

.log-entry-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.log-entry-title {
  font-weight: 600;
  color: var(--text);
}

.log-entry-timestamp {
  font-variant-numeric: tabular-nums;
  opacity: 0.8;
}

.log-entry pre {
  margin: 0;
  background: transparent;
  color: inherit;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
}

.metrics-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.metrics-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metrics-header h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
}

.metrics-subtitle {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

.metrics-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.metric-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 160px;
}

.metric-card h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric-value {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metric-footnote {
  font-size: 13px;
  color: var(--muted);
}

.metrics-table-section {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.metrics-table-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metrics-table-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.metrics-table-header p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.metrics-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-alt);
  font-size: 14px;
}

.metrics-table th,
.metrics-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.metrics-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.metrics-table tbody tr:last-child td {
  border-bottom: none;
}

.metrics-table tbody tr:nth-child(odd) {
  background: rgba(59, 130, 246, 0.06);
}

.metrics-empty {
  text-align: center;
  color: var(--muted);
}

.agent-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.agent-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.agent-header h2 {
  margin: 0;
  font-size: 28px;
}

.agent-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  padding: 18px;
  border: 1px dashed rgba(59, 130, 246, 0.24);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
}

.agent-model-row {
  display: grid;
  grid-column: span 2;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.agent-json-field {
  grid-column: span 2;
}

.agent-actions {
  grid-column: span 2;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.agent-status {
  font-size: 13px;
  color: var(--muted);
}

.agent-runner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
  min-height: 420px;
}

.agent-runner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#agentUserPrompt {
  min-height: 120px;
  max-height: 220px;
  overflow-y: auto;
}

.agent-output {
  max-height: none;
  overflow: visible;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1 1 auto;
}

.agent-step-block {
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.agent-step-summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  min-height: 56px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  background: rgba(59, 130, 246, 0.08);
  box-sizing: border-box;
}

.agent-step-summary-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.agent-step-title {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.agent-step-meta {
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.agent-step-body {
  margin: 0;
  padding: 12px;
}

.agent-step-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.agent-v2-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.agent-v2-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.agent-v2-header h2 {
  margin: 0;
  font-size: 28px;
}

.agent-v2-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.agent-v2-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
}

.agent-v2-palette {
  border: 1px solid var(--border);
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.agent-v2-palette h3,
.agent-v2-palette p {
  margin: 0;
}

.agent-v2-palette-item {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.agent-v2-palette-item:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.agent-v2-help {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.agent-v2-help p {
  margin: 0;
}

.agent-v2-workspace-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.agent-v2-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.agent-v2-workspace {
  position: relative;
  min-height: 560px;
  border: 1px dashed rgba(59, 130, 246, 0.32);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.04), transparent 28%), var(--surface-alt);
  overflow: auto;
}

.agent-v2-workspace.node-connecting {
  box-shadow: inset 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.agent-v2-connections {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.agent-v2-connections path {
  fill: none;
  stroke: rgba(96, 165, 250, 0.9);
  stroke-width: 2.2;
  marker-end: url(#agentV2Arrow);
}

.agent-v2-connections path.loop {
  stroke: #f59e0b;
  stroke-dasharray: 6 4;
}

#agentV2Arrow path {
  fill: rgba(96, 165, 250, 0.9);
}

.agent-v2-connections path.loop + path {
  stroke: #f59e0b;
}

.agent-v2-node {
  position: absolute;
  min-width: 210px;
  max-width: 340px;
  border: 1px solid rgba(59, 130, 246, 0.25);
  background: var(--surface);
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(2, 6, 23, 0.18);
  z-index: 2;
}

.agent-v2-node-header {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: move;
  background: rgba(59, 130, 246, 0.08);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agent-v2-node-header button {
  font-size: 11px;
  border-radius: 999px;
  padding: 4px 8px;
}

.agent-v2-node-body {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.agent-v2-node-body p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.agent-v2-node-body textarea {
  min-height: 90px;
  font-size: 13px;
}

.agent-v2-connectors {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.agent-v2-connector-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.agent-v2-connector {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(59, 130, 246, 0.65);
  background: var(--surface-alt);
  cursor: pointer;
}

.agent-v2-connector.output {
  border-color: #34d399;
}

.agent-v2-connector.active {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.agent-v2-runner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
  padding: 12px;
}

.agent-v2-export-field textarea {
  font-size: 14px;
}

#agentV2FinalOutput {
  min-height: 220px;
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 10px;
}

.agent-v2-modal {
  position: fixed;
  inset: 0;
  z-index: 250;
  background: rgba(2, 6, 23, 0.58);
  display: grid;
  place-items: center;
  padding: 16px;
}

.agent-v2-modal-card {
  width: min(760px, 100%);
  max-height: 82vh;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 18px 36px rgba(2, 6, 23, 0.42);
  padding: 12px;
}

.agent-v2-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.agent-v2-modal-header h3 {
  margin: 0;
}

#agentV2NodeOutputBody {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.docs-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.docs-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.docs-header h2 {
  margin: 0;
  font-size: 28px;
}

.docs-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.markdown-content {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  max-height: 70vh;
  overflow: auto;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  margin: 0 0 10px;
}

.markdown-content p,
.markdown-content ul,
.markdown-content ol,
.markdown-content pre,
.markdown-content table {
  margin: 0 0 14px;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 20px;
}

.markdown-content pre {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px;
  overflow: auto;
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.markdown-content th,
.markdown-content td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.markdown-content th:last-child,
.markdown-content td:last-child {
  border-right: none;
}

.markdown-content tr:last-child td {
  border-bottom: none;
}

.markdown-content th {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--muted);
}

.markdown-content code {
  font-family: var(--font-mono);
}

.log-entries::-webkit-scrollbar {
  width: 8px;
}

.log-entries::-webkit-scrollbar-track {
  background: transparent;
}

.log-entries::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.45);
  border-radius: 999px;
}

@media (max-width: 920px) {
  .topbar {
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
    padding: 18px 24px;
  }

  .topbar-controls {
    margin-left: 0;
  }

  .page {
    padding: 32px 20px 60px;
  }

  .chat-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .context-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }

  .context-toolbar .field {
    width: 100%;
  }

  .context-stats {
    align-self: flex-start;
  }

  .chat-layout {
    grid-template-columns: 1fr;
  }

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

  .agent-model-row,
  .agent-actions,
  .agent-json-field {
    grid-column: span 1;
  }

  .agent-model-row {
    grid-template-columns: 1fr;
  }

  .agent-v2-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    display: grid;
    grid-template-columns: 1fr auto;
    padding: 10px 12px;
    gap: 10px;
    align-items: center;
  }

  .brand {
    width: auto;
    text-align: left;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .menu {
    display: none;
    width: 100%;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .menu-item {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
    justify-content: flex-start;
  }

  .topbar-controls {
    display: none;
    width: 100%;
    margin-left: 0;
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .topbar.menu-open .menu {
    display: flex;
  }

  .topbar.menu-open .topbar-controls {
    display: grid;
  }

  .auth-user-label {
    grid-column: 1 / -1;
    text-align: left;
  }

  .page {
    padding: 16px 12px 40px;
    gap: 16px;
  }

  .container,
  .log-panel,
  .metrics-panel,
  .agent-panel,
  .docs-panel {
    padding: 16px 12px;
  }

  .container h1,
  .metrics-header h2,
  .agent-header h2,
  .docs-header h2,
  .log-header h2 {
    font-size: 22px;
  }

  .history-panel,
  .composer-panel,
  .context-insights,
  .agent-runner,
  .agent-grid {
    padding: 12px;
  }

  .conversation-history {
    max-height: 45vh;
  }

  #response {
    min-height: 160px;
  }

  #prompt {
    min-height: 120px;
  }

  #sendBtn,
  .clear-log-btn,
  .theme-toggle,
  button.secondary,
  button.danger {
    width: 100%;
    min-height: 44px;
  }

  textarea,
  select,
  input[type="number"],
  input[type="text"] {
    font-size: 16px;
  }

  .field-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .persona-actions,
  .history-actions,
  .composer-actions,
  .agent-actions,
  .agent-runner-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .context-limits {
    padding: 14px 12px;
  }

  .context-limits .field,
  .persona-controls .field {
    flex: 1 1 100%;
  }
}

.auth-user-label {
  font-size: 0.9rem;
  color: var(--muted);
}

.auth-gate {
  min-height: calc(100vh - 72px);
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 10px 24px var(--shadow);
}

.auth-card h2 {
  margin-top: 0;
}

.auth-subtitle {
  margin-top: -4px;
  color: var(--muted);
  margin-bottom: 16px;
}