/* ===========================
   VARIABLES
   =========================== */
:root {
  --bg: #ffffff;
  --bg-secondary: #f7f7f7;
  --surface: #f0f0f0;
  --border: #e0e0e0;
  --border-hover: #c0c0c0;
  --text: #111111;
  --text-secondary: #666666;
  --text-muted: #999999;
  --accent: #333333;
  --accent-hover: #1a1a1a;
  --success: #2d8a4e;
  --warning: #c4841d;
  --error: #c0392b;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
  --sidebar-w: 240px;
  --sidebar-w-collapsed: 64px;
}

/* ===========================
   RESET
   =========================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow: hidden;
  height: 100vh;
}

/* ===========================
   APP LAYOUT
   =========================== */
.app-layout {
  display: flex;
  height: 100vh;
}

/* ===========================
   SIDEBAR
   =========================== */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width var(--transition);
  z-index: 100;
}

.sidebar.collapsed {
  width: var(--sidebar-w-collapsed);
}

.sidebar.collapsed .sidebar-logo,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .badge {
  display: none;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 12px;
}

.sidebar-header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-footer {
  padding: 12px 8px;
  border-top: 1px solid var(--border);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent);
  color: #ffffff;
}

.nav-item-subtle {
  color: var(--text-muted);
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ===========================
   BADGE
   =========================== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-online {
  background: #e8f5e9;
  color: var(--success);
}

.badge-offline {
  background: var(--surface);
  color: var(--text-muted);
}

/* ===========================
   MAIN AREA
   =========================== */
.main-area {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* ===========================
   TOPBAR (mobile)
   =========================== */
.topbar {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-menu {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  padding: 4px;
}

.topbar-title {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
}

/* ===========================
   CONTENT SECTIONS
   =========================== */
.content-section {
  display: none;
  padding: 32px;
  flex: 1;
}

.content-section.active {
  display: flex;
  flex-direction: column;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  gap: 16px;
}

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ===========================
   EMPTY STATE
   =========================== */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 20px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state p {
  font-size: 0.95rem;
}

/* ===========================
   DEVICES GRID
   =========================== */
.devices-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* ===========================
   DEVICE CARD
   =========================== */
.device-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.device-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

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

.device-name {
  font-size: 1rem;
  font-weight: 600;
}

.device-location {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.device-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}

.device-indicator.online {
  background: var(--success);
}

.device-indicator.offline {
  background: var(--error);
}

.device-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.device-control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

.btn-ghost {
  background: none;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--surface);
  color: var(--text);
}

.btn-toggle {
  width: 100%;
  padding: 10px;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.btn-toggle.on {
  background: var(--accent);
  color: #ffffff;
}

.btn-toggle.off {
  background: var(--surface);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.btn-delete:hover {
  background: #fdecea;
  color: var(--error);
}

.device-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===========================
   SLIDER
   =========================== */
.slider {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

/* ===========================
   INPUT GROUP (thermostat)
   =========================== */
.input-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.input-small {
  width: 56px;
  padding: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
}

/* ===========================
   MOTION STATUS
   =========================== */
.motion-status {
  padding: 12px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
}

.motion-status.idle {
  background: var(--surface);
  color: var(--text-secondary);
}

.motion-status.detected {
  background: #fdecea;
  color: var(--error);
  animation: pulse 1.5s infinite;
}

/* ===========================
   COLOR PICKER
   =========================== */
.color-picker {
  width: 40px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 2px;
  background: var(--bg);
}

/* ===========================
   SWITCH LABEL
   =========================== */
.switch-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.switch-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

/* ===========================
   TEMP CONTROLS
   =========================== */
.temp-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.temp-value {
  font-size: 1.1rem;
  font-weight: 700;
  min-width: 50px;
  text-align: center;
}

/* ===========================
   MODE SELECT
   =========================== */
.mode-select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

/* ===========================
   NAV COUNT BADGE
   =========================== */
.nav-count {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 10px;
}

.nav-item.active .nav-count {
  background: rgba(255,255,255,0.2);
  color: #ffffff;
}

/* ===========================
   FORM CHECKBOXES
   =========================== */
.form-checkboxes {
  gap: 16px;
  margin-bottom: 16px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
  cursor: pointer;
}

.form-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===========================
   CAMERA INFO BAR
   =========================== */
.camera-info-bar {
  display: flex;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.zoom-label {
  display: flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 36px;
  justify-content: center;
}

/* ===========================
   CAMERAS
   =========================== */
.camera-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.grid-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.grid-btn {
  padding: 6px 10px;
  border: none;
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
}

.grid-btn + .grid-btn {
  border-left: 1px solid var(--border);
}

.grid-btn.active {
  background: var(--accent);
  color: #ffffff;
}

.cameras-grid {
  display: grid;
  gap: 12px;
  flex: 1;
}

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

.cameras-grid.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.cameras-grid.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Camera card in grid */
.camera-card {
  background: #000000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.camera-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.camera-feed-preview {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.camera-feed-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-no-signal {
  color: #555555;
  font-size: 0.85rem;
  text-align: center;
}

.camera-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 12px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.camera-card-name {
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
}

.camera-card-location {
  color: #aaaaaa;
  font-size: 0.7rem;
}

.camera-rec-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--error);
  animation: pulse 1s infinite;
}

.camera-rec-dot.off {
  background: #555555;
  animation: none;
}

/* ===========================
   CAMERA FULL VIEW MODAL
   =========================== */
.camera-fullview {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.camera-feed {
  flex: 1;
  background: #000000;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  position: relative;
}

.camera-feed img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.camera-placeholder-full {
  color: #555555;
  font-size: 1rem;
}

.camera-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 8px 0;
}

.cam-ctrl-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  min-width: 80px;
}

.cam-ctrl-btn span {
  font-size: 0.7rem;
  font-weight: 500;
}

.cam-ctrl-btn:hover {
  background: var(--border);
  color: var(--text);
}

.cam-ctrl-btn.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ===========================
   MODALS
   =========================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 440px;
  width: 92%;
  padding: 28px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-lg {
  max-width: 540px;
}

.modal-fullscreen {
  max-width: 900px;
  width: 95%;
  display: flex;
  flex-direction: column;
}

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

.modal-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--surface);
  color: var(--text);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}

/* ===========================
   FORMS
   =========================== */
.form-group {
  margin-bottom: 16px;
  flex: 1;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group small {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-row {
  display: flex;
  gap: 12px;
}

select {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23999'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 1em;
}

/* ===========================
   INFO BOX
   =========================== */
.info-box {
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

.info-box strong {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 8px;
  color: var(--text);
}

.info-box ul {
  list-style: none;
  padding: 0;
}

.info-box li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  padding: 2px 0;
}

.info-box li::before {
  content: "- ";
  color: var(--text-muted);
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===========================
   WEBRTC STYLES
   =========================== */
.webrtc-status-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.webrtc-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.webrtc-status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

.webrtc-status.connected {
  background: #e8f5e9;
  color: var(--success);
}

.webrtc-status.connected::before {
  background: var(--success);
}

.webrtc-status.disconnected {
  background: var(--surface);
  color: var(--text-muted);
}

.webrtc-status.disconnected::before {
  background: var(--text-muted);
  animation: none;
}

.btn-icon-sm {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon-sm:hover {
  background: var(--border);
  color: var(--text);
}

/* Camera Video Element */
.camera-video-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0a0a0a;
}

.camera-feed video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

/* Camera Status Badges */
.camera-status-badges {
  display: flex;
  align-items: center;
  gap: 6px;
}

.camera-badge {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.camera-badge.webrtc {
  background: rgba(46, 204, 113, 0.2);
  color: #2ecc71;
}

.camera-badge.local {
  background: rgba(52, 152, 219, 0.2);
  color: #3498db;
}

/* Camera Loader */
.camera-loader {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #ffffff;
  font-size: 0.85rem;
}

.loader-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Camera Error */
.camera-error {
  position: absolute;
  inset: 0;
  background: rgba(192, 57, 43, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #ffffff;
  font-size: 0.85rem;
  text-align: center;
  padding: 20px;
}

.error-icon {
  width: 32px;
  height: 32px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2rem;
}

/* No Signal Icon */
.no-signal-icon {
  margin-bottom: 8px;
  opacity: 0.6;
}

.camera-no-signal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #555555;
  font-size: 0.85rem;
  text-align: center;
  height: 100%;
}

/* Connection Type Selector */
.connection-type-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.radio-card {
  cursor: pointer;
}

.radio-card input {
  display: none;
}

.radio-card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: all var(--transition);
  text-align: center;
}

.radio-card-content span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.radio-card-content small {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.radio-card input:checked + .radio-card-content {
  border-color: var(--accent);
  background: var(--surface);
}

.radio-card:hover .radio-card-content {
  border-color: var(--border-hover);
}

/* Connection Type Badge in Camera View */
.connection-type {
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.connection-type.webrtc {
  background: rgba(46, 204, 113, 0.15);
  color: #27ae60;
}

.connection-type.local {
  background: rgba(52, 152, 219, 0.15);
  color: #2980b9;
}

.connection-type.http {
  background: rgba(241, 196, 15, 0.15);
  color: #f39c12;
}

/* WebRTC Info Banner */
.webrtc-info-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.webrtc-info-banner svg {
  flex-shrink: 0;
  color: var(--accent);
}

/* Camera Placeholder Full */
.camera-placeholder-full {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #666666;
  font-size: 1rem;
  text-align: center;
}

.camera-placeholder-full svg {
  opacity: 0.5;
}

.placeholder-hint {
  font-size: 0.8rem;
  color: #888888;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -100%;
    top: 0;
    bottom: 0;
    transition: left 0.3s ease;
    box-shadow: var(--shadow-lg);
    z-index: 200;
  }

  .sidebar.open {
    left: 0;
  }

  .topbar {
    display: flex;
  }

  .content-section {
    padding: 20px;
  }

  .section-header {
    flex-direction: column;
  }

  .camera-toolbar {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
  }

  .webrtc-status-container {
    order: -1;
    width: 100%;
  }

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

  .cameras-grid.grid-2,
  .cameras-grid.grid-3 {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .camera-controls {
    gap: 4px;
  }

  .cam-ctrl-btn {
    padding: 8px 10px;
    min-width: 60px;
  }

  .connection-type-selector {
    grid-template-columns: 1fr;
  }

  .radio-card-content {
    flex-direction: row;
    justify-content: flex-start;
    padding: 12px;
  }

  .radio-card-content svg {
    width: 20px;
    height: 20px;
  }
}