/* Layout */
body {
  display: flex;
  overflow: hidden;
}

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
}

.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: 16px;
}

.nav-links {
  flex: 1;
  padding: 12px 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: all var(--transition);
  margin-bottom: 2px;
}

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

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

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

.connection-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--danger); }
.status-dot.provisioning { background: var(--warning); animation: pulse 2s infinite; }

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

.content {
  margin-left: var(--sidebar-width);
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  padding: 24px 32px;
}

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 600;
}

.page-header .subtitle {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 2px;
}

/* Buttons */
.btn {
  padding: 8px 16px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 13px;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

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

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

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

.btn-danger {
  background: var(--danger-dim);
  color: #fca5a5;
}

.btn-danger:hover {
  background: var(--danger);
  color: white;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-icon {
  padding: 6px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.btn-icon:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* Device Grid */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.device-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}

.device-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.device-card-preview {
  aspect-ratio: 16/9;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.device-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.device-card-preview .no-preview {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: 8px;
}

.device-card-preview .no-preview svg {
  opacity: 0.3;
}

.device-card-status {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}

.device-card-body {
  padding: 14px 16px;
}

.device-card-name {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 6px;
}

.device-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 12px;
}

.device-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Device Detail */
.device-detail {
  max-width: 1200px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 13px;
  transition: color var(--transition);
}

.back-link:hover { color: var(--text-primary); }

.device-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.device-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.device-status-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.device-status-badge.online { background: var(--success-dim); color: var(--success); }
.device-status-badge.offline { background: var(--danger-dim); color: #fca5a5; }
.device-status-badge.provisioning { background: var(--warning-dim); color: var(--warning); }

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Screenshot Preview */
.screenshot-container {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  position: relative;
  margin-bottom: 20px;
}

.screenshot-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screenshot-container .no-screenshot {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: 8px;
}

/* Remote Control */
.remote-container {
  display: flex;
  gap: 20px;
}

.remote-screen {
  flex: 1;
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: crosshair;
}

.remote-screen canvas {
  width: 100%;
  display: block;
}

.remote-controls {
  width: 120px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.remote-controls .btn {
  width: 100%;
  justify-content: center;
}

/* Playlist */
.playlist-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.playlist-item:hover {
  border-color: var(--border-light);
}

.playlist-item-thumb {
  width: 80px;
  height: 45px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--bg-primary);
  flex-shrink: 0;
}

.playlist-item-info {
  flex: 1;
  min-width: 0;
}

.playlist-item-name {
  font-weight: 500;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-item-meta {
  font-size: 11px;
  color: var(--text-secondary);
}

.playlist-item-actions {
  display: flex;
  gap: 4px;
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.info-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.info-card-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.info-card-value {
  font-size: 20px;
  font-weight: 600;
}

.info-card-value.small {
  font-size: 14px;
}

/* Progress bar */
.progress-bar {
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width var(--transition);
}

.progress-bar-fill.success { background: var(--success); }
.progress-bar-fill.warning { background: var(--warning); }
.progress-bar-fill.danger { background: var(--danger); }

/* Content Library */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.content-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}

.content-item:hover {
  border-color: var(--border-light);
}

.content-item-preview {
  aspect-ratio: 16/9;
  background: var(--bg-primary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-item-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-item-preview .video-icon {
  color: var(--text-muted);
}

.content-item-body {
  padding: 10px 12px;
}

.content-item-name {
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.content-item-size {
  font-size: 11px;
  color: var(--text-muted);
}

.content-item-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0 12px 10px;
  gap: 4px;
}

/* Upload Area */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 24px;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

.upload-area svg {
  margin: 0 auto 12px;
  color: var(--text-muted);
}

.upload-area p {
  color: var(--text-secondary);
  font-size: 14px;
}

.upload-area .upload-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 440px;
  max-width: 90vw;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-body {
  padding: 20px;
}

.modal-description {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

/* Form Elements */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.input {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  transition: border-color var(--transition);
}

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

.pairing-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  letter-spacing: 8px;
  font-family: 'Courier New', monospace;
}

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

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  min-width: 280px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.empty-state svg {
  margin: 0 auto 16px;
  opacity: 0.3;
}

.empty-state h3 {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 13px;
  max-width: 360px;
  margin: 0 auto;
}

/* Settings */
.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.settings-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
}

/* Assign Modal */
.assign-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  max-height: 400px;
  overflow-y: auto;
}

.assign-content-item {
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}

.assign-content-item:hover {
  border-color: var(--accent);
}

.assign-content-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.assign-content-item img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.assign-content-item-name {
  padding: 6px 8px;
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* Upload progress */
.upload-progress {
  margin-top: 16px;
}

.upload-progress-bar {
  height: 4px;
  background: var(--bg-primary);
  border-radius: 2px;
  overflow: hidden;
}

.upload-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Help tooltips */
.help-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  cursor: help;
  position: relative;
  margin-left: 6px;
  flex-shrink: 0;
}

.help-tip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
  white-space: normal;
  width: 250px;
  z-index: 1000;
  box-shadow: var(--shadow);
  margin-bottom: 6px;
  line-height: 1.4;
}

/* Mobile hamburger toggle */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-btn { display: flex; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 150;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 140;
  }
  .sidebar-backdrop.open { display: block; }
  .content { margin-left: 0; padding: 16px; padding-top: 60px; }
  .page-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .device-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .info-grid { grid-template-columns: 1fr 1fr; }
  .remote-container { flex-direction: column; }
  .remote-controls { width: 100%; flex-direction: row; flex-wrap: wrap; }
  .modal { width: 95vw; max-height: 90vh; overflow-y: auto; }
  .tabs { overflow-x: auto; }
  .tab { white-space: nowrap; }
}