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

:root {
  --bg-primary: #0f1419;
  --bg-secondary: #1a2332;
  --bg-tertiary: #243044;
  --text-primary: #e1e8f0;
  --text-secondary: #8899aa;
  --accent: #4ade80;
  --accent-dim: #22803d;
  --danger: #f87171;
  --warning: #fbbf24;
  --border: #2d3f54;
  --input-bg: #1e2d3d;
  --message-user: #1e3a5f;
  --message-ai: #1a2332;
}

[data-theme="light"] {
  --bg-primary: #f4efe6;       /* warm paper */
  --bg-secondary: #fdfbf6;     /* card surface */
  --bg-tertiary: #e8e1d2;      /* raised surface */
  --text-primary: #1a2620;     /* deep forest */
  --text-secondary: #5e6b62;   /* muted sage */
  --accent: #1f8a3f;           /* saturated leaf green */
  --accent-dim: #88c9a0;       /* light leaf */
  --danger: #c93020;
  --warning: #b86b00;
  --border: #d4ccba;
  --input-bg: #ffffff;
  --message-user: #d6ebd9;
  --message-ai: #f0ebde;
}

html { transition: background-color 0.25s ease; }
body { transition: background-color 0.25s ease, color 0.25s ease; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Top toolbar — promoted out of the sidebar so the navigation is uniform
   across all pages and the sidebar can be reserved for page-specific info. */
.app-toolbar {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 20px;
  height: 52px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 10;
}
.app-toolbar::after {
  /* thin accent stripe under the toolbar */
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-dim) 30%, var(--accent-dim) 70%, transparent);
  opacity: 0.45;
}
.app-toolbar-brand {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-right: 18px;
  border-right: 1px solid var(--border);
}
.app-toolbar-brand:hover { color: var(--accent); }
.app-toolbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.app-toolbar-links .nav-link {
  font-size: 13px;
  padding: 6px 12px;
  text-decoration: none;
}
.app-toolbar-links .nav-link.active {
  background: var(--accent-dim);
  color: white;
}
.app-toolbar-meta {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  text-transform: uppercase;
}

.app-layout {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 18px;
  margin-bottom: 12px;
}

.sidebar-header nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-link.active {
  background: var(--accent-dim);
  color: white;
}

/* Sensor Panel */
.sensor-panel {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.sensor-panel h3 {
  font-size: 13px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.sensor-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.sensor-card:last-of-type {
  border-bottom: none;
}

.relay-card {
  background: rgba(255, 255, 255, 0.02);
}

.relay-value {
  font-size: 18px;
  letter-spacing: 0.08em;
}

.relay-value.relay-on {
  color: var(--accent);
}

.relay-value.relay-off {
  color: var(--text-secondary);
}

.relay-value.relay-unknown {
  color: var(--warning);
}

.sensor-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.sensor-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.sensor-time {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Actions Panel */
.actions-panel {
  padding: 16px;
  flex: 1;
  overflow-y: auto;
}

.actions-panel h3 {
  font-size: 13px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.actions-meta {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.action-log {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.action-item {
  font-size: 12px;
  padding: 8px 10px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  border-left: 3px solid var(--accent);
  line-height: 1.4;
}

.action-item strong {
  color: var(--text-primary);
}

.action-source {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-weight: 700;
  vertical-align: middle;
}

.action-source-llm {
  background: var(--accent-dim);
  color: var(--accent);
}

.action-source-rule {
  background: rgba(230, 126, 34, 0.2);
  color: #e67e22;
}

.action-reason {
  color: var(--text-secondary);
  font-style: italic;
}

.action-item.failed {
  border-left-color: var(--danger);
}

.action-empty {
  font-size: 12px;
  color: var(--text-secondary);
  font-style: italic;
}

/* Connection Status */
.connection-status {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.connected {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}

.status-dot.disconnected {
  background: var(--danger);
}

.status-dot.connecting {
  background: var(--warning);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Chat Area */
.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: 12px;
  line-height: 1.5;
  font-size: 14px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.user-message {
  background: var(--message-user);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.ai-message {
  background: var(--message-ai);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border);
}

.system-message {
  align-self: center;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
  max-width: 90%;
}

.message-content {
  word-break: break-word;
}

.typing-indicator {
  display: inline-block;
  width: 6px;
  height: 14px;
  background: var(--accent);
  animation: blink 0.7s infinite;
  vertical-align: middle;
  margin-left: 2px;
}

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

/* Chat Input */
.chat-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: flex-end;
  background: var(--bg-secondary);
}

#chat-input {
  flex: 1;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  max-height: 120px;
  outline: none;
  transition: border-color 0.2s;
}

#chat-input:focus {
  border-color: var(--accent);
}

.send-btn {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.send-btn:hover:not(:disabled) {
  background: #5ce890;
}

.send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.clear-btn {
  background: transparent;
  color: var(--text-muted, #8c8c8c);
  border: 1px solid var(--border, #2a2a2a);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.clear-btn:hover {
  color: var(--text, #fff);
  border-color: var(--accent, #4caf50);
}

.history-divider .message-content {
  background: transparent;
  color: var(--text-muted, #8c8c8c);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 4px 0;
}

/* Settings Page */
.settings-area {
  flex: 1;
  overflow-y: auto;
  padding: 30px 40px;
}

.settings-area h1 {
  font-size: 24px;
  margin-bottom: 8px;
}

.settings-desc {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 14px;
}

.config-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.config-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.config-header h2 {
  font-size: 18px;
}

/* Memory list */
.memory-list {
  max-height: 300px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.memory-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-tertiary);
  border-radius: 6px;
  font-size: 13px;
}

.memory-item-content {
  flex: 1;
}

.memory-item-category {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2px;
}

.memory-item-text {
  color: var(--text-primary);
  line-height: 1.4;
}

.memory-delete-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  cursor: pointer;
  flex-shrink: 0;
}

.memory-delete-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.purge-btn {
  background: var(--danger);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.purge-btn:hover {
  opacity: 0.85;
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.save-btn, .test-btn {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.save-btn {
  background: var(--accent);
  color: #000;
}

.save-btn:hover {
  background: #5ce890;
}

.test-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.test-btn:hover {
  border-color: var(--accent);
}

.config-status {
  margin-top: 8px;
  font-size: 13px;
  min-height: 20px;
}

.config-status.success {
  color: var(--accent);
}

.config-status.error {
  color: var(--danger);
}

.info-card {
  background: var(--bg-tertiary);
  border-color: var(--accent-dim);
}

.info-card h2 {
  margin-bottom: 8px;
}

.info-card p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 10px;
}

.code-block {
  background: var(--bg-primary);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 12px;
  overflow-x: auto;
}

.code-block code, .code-block pre {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  color: var(--accent);
  white-space: pre-wrap;
}

.sidebar-info {
  padding: 16px;
}

.sidebar-info h3 {
  font-size: 13px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

#system-status {
  font-size: 13px;
  line-height: 1.8;
}

.outside-conditions {
  font-size: 13px;
  line-height: 1.6;
}

.outside-headline {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.outside-icon {
  font-size: 26px;
  line-height: 1;
}

.outside-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: capitalize;
}

.outside-conditions em {
  font-style: normal;
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 11px;
}

.outside-loc {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  text-align: center;
}

/* Models panel (Phase 3) */
#models-table .row-active {
  background: rgba(76, 227, 165, 0.06);
}
#models-table .row-active strong {
  color: var(--accent);
}
.metric-badge.chip-warn {
  background: rgba(255, 170, 50, 0.18);
  color: #ffb55a;
  border: 1px solid rgba(255, 170, 50, 0.35);
}
.metric-badge.chip-live {
  background: rgba(76, 227, 165, 0.18);
  color: var(--accent);
  border: 1px solid rgba(76, 227, 165, 0.45);
}
.metric-badge.chip-idle {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Research page */
.experiments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 16px;
}

.experiment-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.experiment-card:hover { border-color: var(--accent-dim); }

.experiment-card-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.experiment-id {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5px;
}
.experiment-card-head h3 {
  font-size: 14px;
  line-height: 1.35;
  flex: 1;
  color: var(--text-primary);
}

.experiment-meta {
  display: flex;
  gap: 10px;
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}
.experiment-meta-label {
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 1px;
}

.experiment-flags {
  display: grid;
  gap: 8px;
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.flag-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}
.flag-label { color: var(--text-secondary); }
.flag-row input, .flag-row select {
  background: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.flag-row input:focus, .flag-row select:focus {
  outline: none; border-color: var(--accent);
}

.experiment-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.experiment-actions a.refresh-btn { text-decoration: none; }

.experiment-status {
  margin-left: auto;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.experiment-result {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.experiment-error {
  color: var(--danger);
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: 6px;
  padding: 10px;
  font-size: 12px;
}
.result-table-wrap summary, .result-latex-wrap summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.result-latex {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  line-height: 1.5;
  white-space: pre;
  overflow-x: auto;
  max-height: 280px;
}

.research-state .qs-row { padding: 4px 0; }
.research-state .qs-row span { color: var(--text-secondary); }
.research-state .qs-row strong { color: var(--text-primary); }

.research-banner {
  background: rgba(255, 170, 50, 0.1);
  border: 1px solid rgba(255, 170, 50, 0.4);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 18px;
  color: var(--text-primary);
  font-size: 13px;
}
.research-banner-head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.research-banner-head strong { color: #ffb55a; letter-spacing: 0.5px; }
.research-banner-head span { color: var(--text-secondary); font-size: 12px; }
.research-banner ul { margin: 0; padding-left: 18px; }
.research-banner li { line-height: 1.6; }
.research-banner code {
  background: var(--bg-tertiary);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Compact device-state rows in the sidebar */
.sidebar-meta {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  letter-spacing: 0.3px;
}

.device-row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
}

.device-row:last-child { margin-bottom: 0; }

.device-row-icon {
  font-size: 16px;
  line-height: 1;
}

.device-row-name {
  font-size: 13px;
  color: var(--text-primary);
}

.device-row .relay-value {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Compact toggle inside each device row */
.device-toggle {
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
}

.device-toggle input[type="checkbox"] {
  display: none;
}

.device-toggle-switch {
  width: 38px;
  height: 22px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.device-toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: left 0.2s ease, background 0.2s ease;
}

.device-toggle input:checked + .device-toggle-switch {
  background: var(--accent);
  border-color: var(--accent);
}

.device-toggle input:checked + .device-toggle-switch::after {
  left: 18px;
  background: #fff;
}

.device-toggle input:disabled + .device-toggle-switch {
  opacity: 0.5;
  cursor: wait;
}

.device-toggle-switch.pending {
  border-color: var(--warning);
}

/* Autonomous Analysis Messages */
.analysis-message {
  align-self: center;
  max-width: 90%;
  background: linear-gradient(135deg, #1a2a1a 0%, #1a2332 100%);
  border: 1px solid var(--accent-dim);
  border-radius: 10px;
  padding: 12px 16px;
}

.analysis-message.analysis-error {
  border-color: var(--danger);
  background: linear-gradient(135deg, #2a1a1a 0%, #1a2332 100%);
}

.analysis-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 6px;
}

.analysis-error .analysis-header {
  color: var(--danger);
}

.analysis-sensor {
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--text-secondary);
  margin-bottom: 8px;
  padding: 4px 8px;
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
}

.sensor-message {
  align-self: center;
  max-width: 90%;
  padding: 4px 10px;
  margin: 2px 0;
  opacity: 0.7;
}
.sensor-message .message-content {
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--text-secondary);
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
  padding: 3px 8px;
}

/* Test/Production Mode Toggle */
.mode-card {
  border-color: var(--accent-dim);
}

.mode-card.test-active {
  border-color: var(--warning);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #2a2520 100%);
}

.mode-toggle-row {
  margin-bottom: 16px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
}

.toggle-label input[type="checkbox"] {
  display: none;
}

.toggle-switch {
  width: 52px;
  height: 28px;
  background: var(--bg-tertiary);
  border-radius: 14px;
  position: relative;
  transition: background 0.3s;
  flex-shrink: 0;
  border: 2px solid var(--border);
}

.toggle-switch::after {
  content: '';
  width: 20px;
  height: 20px;
  background: var(--text-secondary);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: all 0.3s;
}

.toggle-label input:checked + .toggle-switch {
  background: var(--warning);
  border-color: var(--warning);
}

.toggle-label input:checked + .toggle-switch::after {
  left: 26px;
  background: #000;
}

.toggle-text {
  display: flex;
  flex-direction: column;
}

.mode-label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
}

.mode-label.test {
  color: var(--warning);
}

.mode-label.prod {
  color: var(--accent);
}

.mode-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Test Dashboard */
.test-dashboard {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 8px;
}

.test-section {
  margin-bottom: 16px;
}

.test-section h3 {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.test-sensors {
  display: flex;
  gap: 16px;
}

.test-sensor {
  flex: 1;
  background: var(--bg-primary);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.test-sensor-label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.test-sensor-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--warning);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.test-scenario {
  margin-top: 8px;
  font-size: 12px;
  color: var(--warning);
  font-style: italic;
}

.device-states {
  display: flex;
  gap: 12px;
}

.device-state {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-primary);
  border-radius: 8px;
  padding: 10px 12px;
}

.device-icon {
  font-size: 18px;
}

.device-name {
  font-size: 13px;
  flex: 1;
}

.device-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.device-badge.on {
  background: var(--accent-dim);
  color: var(--accent);
}

.test-action-log {
  max-height: 150px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.test-action-entry {
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  padding: 4px 8px;
  background: var(--bg-primary);
  border-radius: 4px;
  border-left: 3px solid var(--warning);
}

/* Autonomous diagnostics */
.autonomous-status { margin-top: 4px; }
.autonomous-info { display: flex; align-items: center; gap: 8px; font-size: 0.95em; }
.autonomous-badge { padding: 2px 10px; border-radius: 4px; font-weight: 700; font-size: 0.85em; }
.badge-on { background: rgba(39,174,96,0.2); color: #27ae60; }
.badge-off { background: rgba(231,76,60,0.2); color: #e74c3c; }

.debug-row {
  cursor: pointer;
}

.debug-row:hover {
  background: var(--bg-tertiary);
}

.debug-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.debug-modal {
  width: min(900px, 92vw);
  max-height: 88vh;
  overflow: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.debug-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.debug-modal-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.debug-modal-section {
  margin-bottom: 12px;
}

.debug-modal-section h4 {
  font-size: 13px;
  margin-bottom: 6px;
}

.debug-modal-json {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Responsive */
@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    max-height: 200px;
    flex-direction: row;
    overflow-x: auto;
  }
  .settings-area {
    padding: 16px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .message {
    max-width: 95%;
  }
}

/* ══════════════════════════════════════════════════════
   Metrics Dashboard
   ══════════════════════════════════════════════════════ */

.metrics-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
  min-width: 0;
}

.metrics-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.metrics-header h1 {
  font-size: 22px;
}

.metrics-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.metrics-updated {
  font-size: 12px;
  color: var(--text-secondary);
}

.refresh-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.refresh-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Summary Cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.2s;
}

.summary-card:hover {
  border-color: var(--accent-dim);
}

.summary-icon {
  font-size: 24px;
  line-height: 1;
}

.summary-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.summary-label {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-top: 2px;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.metric-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metric-panel-wide {
  grid-column: 1 / -1;
}

.metric-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.metric-panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.metric-panel-header h3 {
  font-size: 15px;
  font-weight: 600;
}

.field-help {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.weather-preview-card {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
}

.metric-badge {
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.export-btn,
.panel-export-btn {
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.export-btn:hover,
.panel-export-btn:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.export-btn:disabled,
.panel-export-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.panel-export-btn {
  padding: 4px 8px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.danger-btn {
  border-color: rgba(255, 99, 71, 0.5) !important;
  color: #ff8a7a !important;
}

.danger-btn:hover {
  background: rgba(255, 99, 71, 0.15) !important;
  border-color: #ff8a7a !important;
}

.power-time {
  font-weight: 600;
}

.power-climate {
  margin-top: 2px;
  font-size: 11px;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Bar Charts */
.metric-chart {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 220px;
  overflow-y: auto;
}

.chart-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
}

.chart-label {
  width: 70px;
  flex-shrink: 0;
  color: var(--text-secondary);
  text-align: right;
  font-family: 'SF Mono', 'Fira Code', monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-track {
  flex: 1;
  height: 14px;
  background: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
  min-width: 2px;
}

.chart-val {
  width: 60px;
  flex-shrink: 0;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px;
}

/* Function breakdown bars */
.fn-breakdown {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fn-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.fn-name {
  width: 120px;
  flex-shrink: 0;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.fn-val {
  width: 30px;
  flex-shrink: 0;
  text-align: right;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.fn-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  background: var(--accent-dim);
  color: var(--accent);
}

.fn-tag.fn-none {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.requester-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* Tables */
.metric-table-wrap {
  max-height: 220px;
  overflow-y: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.metric-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.metric-table th {
  position: sticky;
  top: 0;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.5px;
  padding: 8px 10px;
  text-align: left;
}

.metric-table td {
  padding: 6px 10px;
  border-top: 1px solid var(--border);
  color: var(--text-primary);
}

.metric-table tbody tr:hover {
  background: var(--bg-tertiary);
}

.mono {
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.val-danger {
  color: var(--danger) !important;
  font-weight: 700;
}

/* Health Cards */
.health-cards, .dev-cards, .churn-cards {
  display: flex;
  gap: 12px;
}

.health-card, .dev-card, .churn-card {
  flex: 1;
  text-align: center;
  background: var(--bg-primary);
  border-radius: 8px;
  padding: 14px 10px;
}

.health-val, .dev-val, .churn-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.health-lbl, .dev-lbl, .churn-dev {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-top: 4px;
}

.health-warn .health-val {
  color: var(--danger);
}

.churn-icon {
  font-size: 20px;
  display: block;
  margin-bottom: 4px;
}

.no-data {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
  padding: 12px 0;
  text-align: center;
}

/* Sidebar quick summary */
.qs-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}

.qs-row:last-child {
  border-bottom: none;
}

.qs-row span {
  color: var(--text-secondary);
}

.qs-row strong {
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
}

/* Responsive: metrics */
@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .metric-panel-wide {
    grid-column: auto;
  }
  .summary-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .metrics-area {
    padding: 16px;
  }
  .summary-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .health-cards, .dev-cards, .churn-cards {
    flex-wrap: wrap;
  }
}

/* Dashboard page */
.connection-status {
  margin-top: auto;
}

.metrics-area .metric-panel a.nav-link {
  display: block;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.metrics-area .metric-panel a.nav-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-tertiary);
}

.metrics-area .metric-panel a.nav-link.active {
  background: var(--accent-dim);
  color: white;
}

/* Digital Twin */
.twin-panel {
  padding: 0 !important;
  overflow: hidden;
}

.twin-panel .metric-panel-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.twin-canvas-wrap {
  position: relative;
  width: 100%;
  height: 440px;
  background:
    radial-gradient(circle at 50% 30%, #0d1c14 0%, #050b08 70%, #02060a 100%);
  overflow: hidden;
}

.twin-canvas-wrap canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  cursor: grab;
}

.twin-canvas-wrap canvas:active {
  cursor: grabbing;
}

.twin-hud {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  gap: 8px;
  pointer-events: none;
  z-index: 2;
}

.twin-hud-chip {
  background: rgba(4, 12, 8, 0.65);
  border: 1px solid rgba(76, 227, 165, 0.25);
  border-radius: 4px;
  padding: 5px 10px;
  font-size: 10px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
}

.twin-hud-chip strong {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 1px;
}

.twin-legend {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: none;
  z-index: 2;
  font-size: 10px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--text-secondary);
  letter-spacing: 0.6px;
  background: rgba(4, 12, 8, 0.55);
  border: 1px solid rgba(76, 227, 165, 0.2);
  border-radius: 4px;
  padding: 8px 12px;
  backdrop-filter: blur(6px);
}

.twin-legend > div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.twin-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.twin-dot.heat { background: #ff3a10; box-shadow: 0 0 6px #ff3a10; }
.twin-dot.fan { background: #b6c0b6; box-shadow: 0 0 4px #b6c0b6; }
.twin-dot.light { background: #ff5cae; box-shadow: 0 0 8px #ff5cae; }
.twin-dot.mist { background: #d0e8ff; box-shadow: 0 0 5px #d0e8ff; }

#twin-status.chip-live {
  background: rgba(76, 227, 165, 0.12);
  border-color: rgba(76, 227, 165, 0.4);
  color: var(--accent);
}

#twin-status.chip-idle {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

#twin-status.chip-warn {
  background: rgba(255, 170, 50, 0.12);
  color: #ffb55a;
}

#twin-rotate-btn {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: lowercase;
}

.twin-loading {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(5, 11, 8, 0.85);
}

.twin-loading-spinner {
  width: 36px;
  height: 36px;
  border: 2px solid rgba(76, 227, 165, 0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: twin-spin 0.9s linear infinite;
}

@keyframes twin-spin {
  to { transform: rotate(360deg); }
}

.twin-error {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  text-align: center;
  background: rgba(5, 11, 8, 0.92);
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
  letter-spacing: 0.4px;
}

.twin-error strong {
  font-size: 13px;
  color: #ffb55a;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.twin-error-detail {
  max-width: 600px;
  color: var(--text-secondary);
  word-break: break-word;
}

.twin-error-hint {
  margin-top: 10px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .twin-canvas-wrap { height: 320px; }
  .twin-legend { font-size: 9px; padding: 6px 8px; }
}

/* Appearance / theme picker */
.theme-toggle-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 4px;
}

.theme-option {
  cursor: pointer;
  position: relative;
}

.theme-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.theme-card {
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: stretch;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
  background: var(--bg-primary);
}

.theme-option:hover .theme-card { border-color: var(--accent-dim); }

.theme-option input[type="radio"]:checked + .theme-card {
  border-color: var(--accent);
  background: var(--bg-tertiary);
}

.theme-swatch {
  height: 64px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.theme-swatch-dark {
  background:
    linear-gradient(135deg, #0f1419 0%, #1a2332 55%),
    radial-gradient(circle at 80% 70%, #4ade80 0%, transparent 40%);
  background-blend-mode: screen;
}

.theme-swatch-light {
  background:
    linear-gradient(135deg, #f4efe6 0%, #fdfbf6 55%),
    radial-gradient(circle at 80% 70%, #1f8a3f 0%, transparent 40%);
  background-blend-mode: multiply;
}

.theme-card-label {
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.3px;
  color: var(--text-primary);
}

/* Light-theme adjustments for the 3D twin chrome */
[data-theme="light"] .twin-canvas-wrap {
  background: radial-gradient(circle at 50% 25%, #e6efe0 0%, #d4dfca 65%, #b8c8aa 100%);
}

[data-theme="light"] .twin-hud-chip {
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(31, 138, 63, 0.4);
  color: var(--text-secondary);
}

[data-theme="light"] .twin-hud-chip strong { color: var(--accent); }

[data-theme="light"] .twin-legend {
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(31, 138, 63, 0.3);
  color: var(--text-secondary);
}

[data-theme="light"] #twin-status.chip-live {
  background: rgba(31, 138, 63, 0.18);
  border-color: rgba(31, 138, 63, 0.5);
}

[data-theme="light"] .twin-loading { background: rgba(244, 239, 230, 0.9); }
[data-theme="light"] .twin-error { background: rgba(244, 239, 230, 0.95); }