:root {
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f8f9fa;
  --text-primary: #1a1a2e;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border-color: #e5e7eb;
  --border-light: #f3f4f6;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #dbeafe;
  --success: #10b981;
  --success-light: #d1fae5;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --info: #8b5cf6;
  --info-light: #ede9fe;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --header-height: 60px;
  --transition: 0.2s ease;
}
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #334155;
  --border-light: #1e293b;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --accent-light: #1e3a5f;
  --success-light: #064e3b;
  --danger-light: #7f1d1d;
  --warning-light: #78350f;
  --info-light: #4c1d95;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus {
  top: 8px;
}
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition), border-color var(--transition);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  color: var(--accent);
}
.logo h1 {
  font-size: 1.1rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--text-primary);
}
.top-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}
.nav-btn.active {
  background: var(--accent-light);
  color: var(--accent);
}
.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
}
.status-dot.offline {
  background: var(--text-muted);
}
.icon-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.icon-btn:hover {
  background: var(--border-color);
  color: var(--text-primary);
}
.a11y-panel {
  position: fixed;
  top: 0;
  right: -360px;
  width: 340px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  transition: right 0.3s ease;
  padding: 24px;
  overflow-y: auto;
}
.a11y-panel.open {
  right: 0;
}
.a11y-panel-content h2 {
  font-size: 1.2rem;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.a11y-option {
  margin-bottom: 20px;
}
.a11y-option label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}
.a11y-option input[type="range"] {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--accent);
}
.a11y-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}
main {
  padding-top: calc(var(--header-height) + 24px);
  padding-left: 24px;
  padding-right: 24px;
  padding-bottom: 24px;
  max-width: 1440px;
  margin: 0 auto;
}
.view {
  display: none;
}
.view.active {
  display: block;
  animation: fadeIn 0.25s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.reduced-motion .view.active {
  animation: none;
}
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}
.card-header h2 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.card-body {
  padding: 20px;
}
.card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
  text-align: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-offline {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}
.badge-online {
  background: var(--success-light);
  color: var(--success);
}
.badge-info {
  background: var(--info-light);
  color: var(--info);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: var(--border-color);
}
.btn-ghost {
  background: none;
  color: var(--accent);
  padding: 6px 10px;
}
.btn-ghost:hover {
  background: var(--accent-light);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
}
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card-status {
  grid-column: 1;
}
.card-controls {
  grid-column: 2;
}
.card-camera-preview {
  grid-column: 3;
}
.card-emotion {
  grid-column: 1;
}
.card-chat-preview {
  grid-column: 2;
}
.card-info {
  grid-column: 3;
}
.status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.stat-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.dpad-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-width: 220px;
  margin: 0 auto;
}
.dpad-btn {
  width: 56px;
  height: 56px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transition: all var(--transition);
}
.dpad-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}
.dpad-btn:active {
  transform: scale(0.94);
}
.dpad-btn.dpad-stop {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}
.dpad-btn.dpad-stop:hover {
  background: var(--danger);
  color: #fff;
}
.camera-preview-wrapper {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/9;
}
.camera-preview-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.camera-placeholder,
.camera-placeholder-large {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  gap: 8px;
}
.camera-placeholder p,
.camera-placeholder-large p {
  font-size: 0.85rem;
}
.camera-placeholder.hidden,
.camera-placeholder-large.hidden {
  display: none;
}
.emotion-display {
  display: flex;
  align-items: center;
  gap: 20px;
}
.emotion-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}
.emotion-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.emotion-label {
  font-size: 1rem;
  font-weight: 600;
}
.emotion-bar-container {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}
.emotion-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.5s ease;
}
.emotion-confidence {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.chat-preview-list {
  min-height: 120px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-preview-msg {
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}
.chat-preview-msg .msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.chat-preview-msg .msg-content {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-preview-msg .msg-time {
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
}
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--text-muted);
  gap: 8px;
  text-align: center;
}
.empty-state p {
  font-size: 0.85rem;
}
.info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
}
.info-item:last-child {
  border-bottom: none;
}
.info-key {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.info-val {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.controller-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
.controller-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.command-display {
  width: 100%;
  padding: 16px;
  text-align: center;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 2px dashed var(--border-color);
}
.command-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}
.command-display.active-command {
  border-color: var(--accent);
  background: var(--accent-light);
}
.command-display.active-command .command-text {
  color: var(--accent);
}
.command-display.stop-command {
  border-color: var(--danger);
  background: var(--danger-light);
}
.command-display.stop-command .command-text {
  color: var(--danger);
}
.dpad-full {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 360px;
}
.ctrl-btn {
  width: 100px;
  height: 100px;
  border: 2px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0 auto;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition);
}
.ctrl-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.04);
}
.ctrl-btn:active {
  transform: scale(0.96);
}
.ctrl-btn.active-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.3);
}
.ctrl-btn.ctrl-stop {
  background: var(--bg-tertiary);
  border-color: var(--danger);
  color: var(--danger);
}
.ctrl-btn.ctrl-stop:hover {
  background: var(--danger);
  color: #fff;
}
.ctrl-btn.ctrl-stop.active-btn {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.3);
}
.keyboard-hint {
  text-align: center;
  padding: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  width: 100%;
}
.keyboard-hint p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.command-log {
  max-height: 500px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.log-entry {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.log-entry .log-cmd {
  font-weight: 600;
  color: var(--text-primary);
}
.log-entry .log-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.camera-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
.camera-card {
  grid-column: 1;
}
.camera-sidebar {
  grid-column: 2;
}
.camera-body {
  padding: 0;
}
.camera-feed-wrapper {
  position: relative;
  background: #000;
  aspect-ratio: 16/9;
}
.camera-feed-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.camera-placeholder-large {
  border-radius: 0;
}
.camera-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: none;
}
.camera-overlay.visible {
  display: block;
}
.overlay-top-left {
  position: absolute;
  top: 12px;
  left: 12px;
}
.overlay-top-right {
  position: absolute;
  top: 12px;
  right: 12px;
}
.overlay-bottom {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
}
.rec-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
}
.rec-dot {
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  animation: blink 1s infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.reduced-motion .rec-dot {
  animation: none;
}
.timestamp {
  padding: 4px 10px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: monospace;
}
.emotion-overlay {
  padding: 6px 12px;
  background: rgba(0,0,0,0.6);
  border-radius: 4px;
  display: inline-block;
}
.emotion-overlay-label {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
}
.emotion-detail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.emotion-face {
  color: var(--text-muted);
}
.emotion-detail h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}
.emotion-bars {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}
.emotion-bar-row {
  display: grid;
  grid-template-columns: 80px 1fr 40px;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.bar-track {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}
.bar-fill.happy { background: var(--success); }
.bar-fill.neutral { background: var(--accent); }
.bar-fill.sad { background: #6366f1; }
.bar-fill.surprised { background: var(--warning); }
.bar-fill.angry { background: var(--danger); }
.bar-pct {
  text-align: right;
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.chat-layout {
  max-width: 800px;
  margin: 0 auto;
}
.chat-card {
  height: calc(100vh - var(--header-height) - 72px);
  display: flex;
  flex-direction: column;
}
.chat-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.chat-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  gap: 12px;
}
.chat-welcome h3 {
  font-size: 1.2rem;
  color: var(--text-secondary);
}
.chat-welcome p {
  font-size: 0.9rem;
}
.chat-msg {
  display: flex;
  gap: 10px;
  max-width: 80%;
  animation: msgIn 0.2s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.reduced-motion .chat-msg {
  animation: none;
}
.chat-msg.sent {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.chat-msg .msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.chat-msg.received .msg-avatar {
  background: var(--accent-light);
  color: var(--accent);
}
.chat-msg.sent .msg-avatar {
  background: var(--success-light);
  color: var(--success);
}
.chat-msg .msg-bubble {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
}
.chat-msg.received .msg-bubble {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}
.chat-msg.sent .msg-bubble {
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.msg-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.chat-msg.sent .msg-meta {
  text-align: right;
  color: rgba(255,255,255,0.7);
}
.chat-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
}
.chat-input-row {
  display: flex;
  gap: 8px;
}
.chat-text-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}
.chat-text-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.btn-send {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}
.voice-recording-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: var(--danger-light);
  border-radius: var(--radius-sm);
}
.voice-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--danger);
}
.voice-dot {
  width: 10px;
  height: 10px;
  background: var(--danger);
  border-radius: 50%;
  animation: blink 1s infinite;
}
.high-contrast {
  --bg-primary: #000000;
  --bg-secondary: #111111;
  --bg-tertiary: #222222;
  --text-primary: #ffffff;
  --text-secondary: #dddddd;
  --text-muted: #aaaaaa;
  --border-color: #555555;
  --border-light: #333333;
  --accent: #5ba3ff;
  --accent-light: #1a3a6e;
}
.large-targets .ctrl-btn {
  width: 130px;
  height: 130px;
  font-size: 1rem;
}
.large-targets .dpad-btn {
  width: 72px;
  height: 72px;
}
.large-targets .nav-btn {
  padding: 12px 20px;
  font-size: 1rem;
}
.large-targets .btn {
  padding: 14px 24px;
  font-size: 1rem;
}
.large-targets .icon-btn {
  width: 48px;
  height: 48px;
}
@media (max-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-status { grid-column: 1; }
  .card-controls { grid-column: 2; }
  .card-camera-preview { grid-column: 1; }
  .card-emotion { grid-column: 2; }
  .card-chat-preview { grid-column: 1; }
  .card-info { grid-column: 2; }
}
@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .dashboard-grid > .card {
    grid-column: 1;
  }
  .controller-layout,
  .camera-layout {
    grid-template-columns: 1fr;
  }
  .camera-sidebar {
    grid-column: 1;
  }
  .top-bar {
    padding: 0 12px;
  }
  .logo h1 {
    font-size: 0.95rem;
  }
  main {
    padding-left: 12px;
    padding-right: 12px;
  }
}
@media (max-width: 700px) {
  .top-nav {
    display: none;
  }
  .top-bar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 12px;
    gap: 8px;
  }
  .top-bar-actions {
    order: 2;
  }
  main {
    padding-top: calc(var(--header-height) + 60px);
  }
  .mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    z-index: 100;
    padding: 4px 0;
  }
  .mobile-nav .nav-btn {
    flex: 1;
    flex-direction: column;
    gap: 2px;
    padding: 8px 4px;
    font-size: 0.7rem;
    border-radius: 0;
    justify-content: center;
  }
  main {
    padding-bottom: 72px;
  }
  .chat-card {
    height: calc(100vh - var(--header-height) - 130px);
  }
  .ctrl-btn {
    width: 80px;
    height: 80px;
  }
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}