:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary: #64748b;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 6px;
  --radius-lg: 12px;
}

/* Dark Theme (default) */
:root, [data-theme="dark"] {
  --bg: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-sidebar: #1e293b;
  --text: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-light: #64748b;
  --text-sidebar: #e2e8f0;
  --border: #475569;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --nav-bg: #1e293b;
  --nav-border: #334155;
}

/* Light Theme */
[data-theme="light"] {
  --bg: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --bg-card: #ffffff;
  --bg-sidebar: #ffffff;
  --text: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-sidebar: #1e293b;
  --border: #cbd5e1;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --nav-bg: #ffffff;
  --nav-border: #e2e8f0;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

a {
  color: var(--primary);
  text-decoration: none;
}

/* ========== App Browser Layout ========== */
.app-browser {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  width: 100vw;
  max-width: 100vw;
}

/* ========== Mobile Header ========== */
.mobile-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem;
  padding-top: calc(0.75rem + env(safe-area-inset-top, 0));
  flex-shrink: 0;
}

.mobile-header-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: flex-end;
}

.mobile-logo {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mobile-logo svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.mobile-logo span {
  font-weight: 600;
  font-size: 1rem;
}

.mobile-icon-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s;
}

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

.mobile-icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Theme toggle icons */
[data-theme="dark"] .mobile-icon-btn .icon-sun { display: block; }
[data-theme="dark"] .mobile-icon-btn .icon-moon { display: none; }
[data-theme="light"] .mobile-icon-btn .icon-sun { display: none; }
[data-theme="light"] .mobile-icon-btn .icon-moon { display: block; }
.mobile-icon-btn .icon-sun { display: block; }
.mobile-icon-btn .icon-moon { display: none; }

/* ========== App Container ========== */
.app-container {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  position: relative;
}

.app-container.grow {
  flex: 1;
}

.main-tab-content {
  display: none;
  flex: 1;
  overflow: hidden;
  flex-direction: column;
}

.main-tab-content.active {
  display: flex;
}

/* ========== Mobile Search Section ========== */
.mobile-search-bar {
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-search-bar input,
.mobile-search-bar select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 0.9375rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-tertiary);
  color: var(--text);
}

.mobile-search-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.mobile-search-controls select {
  flex: 1;
  min-width: 0;
}

.mobile-search-controls select:first-child {
  flex: 2;
}

.mobile-search-controls .btn {
  flex: 1;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-weight: 500;
  min-height: 44px;
}

.mobile-search-controls .btn-primary {
  background: var(--primary);
  color: white;
}

.mobile-search-controls .btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text);
  border: 1px solid var(--border);
}

/* ========== Mobile Results List ========== */
.mobile-results-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0.5rem;
}

.mobile-result-item {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 0.875rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid var(--border);
}

.mobile-result-item:active {
  transform: scale(0.98);
  background: var(--bg-tertiary);
}

.mobile-result-item.selected {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.1);
}

.mobile-result-title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mobile-result-creator {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mobile-result-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mobile-result-meta span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ========== Mobile Empty State ========== */
.mobile-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  text-align: center;
}

.mobile-empty-state svg {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.mobile-empty-state p {
  font-size: 0.875rem;
}

/* ========== Mobile Jobs Section ========== */
.mobile-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  padding: 1rem 0.75rem 0.5rem;
  background: var(--bg);
}

.mobile-jobs-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 0.75rem 0.75rem;
}

.mobile-job-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 0.875rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
}

.mobile-job-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.mobile-job-title {
  font-weight: 600;
  font-size: 0.9375rem;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 0.5rem;
}

.mobile-job-status {
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  flex-shrink: 0;
}

.mobile-job-status.pending { background: rgba(251, 191, 36, 0.2); color: #fbbf24; }
.mobile-job-status.downloading { background: rgba(59, 130, 246, 0.2); color: #3b82f6; }
.mobile-job-status.encoding { background: rgba(168, 85, 247, 0.2); color: #a855f7; }
.mobile-job-status.completed { background: rgba(34, 197, 94, 0.2); color: #22c55e; }
.mobile-job-status.failed { background: rgba(239, 68, 68, 0.2); color: #ef4444; }

.mobile-job-progress {
  margin: 0.5rem 0;
}

.mobile-job-progress-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.mobile-job-progress-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.3s ease;
}

.mobile-job-progress-fill.completed { background: var(--success); }
.mobile-job-progress-fill.failed { background: var(--danger); }

.mobile-job-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.mobile-job-actions .btn {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.8125rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  min-height: 36px;
}

.mobile-job-actions .btn-primary {
  background: var(--primary);
  color: white;
}

.mobile-job-actions .btn-danger {
  background: var(--danger);
  color: white;
}

.mobile-job-actions .btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

/* ========== Mobile Settings Section ========== */
.mobile-settings-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem;
  padding-bottom: calc(0.75rem + env(safe-area-inset-bottom, 0));
}

.settings-group {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 1rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
}

.settings-group h3 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"] {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 0.9375rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-tertiary);
  color: var(--text);
}

.mobile-checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.mobile-checkbox-label input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}

.mobile-checkbox-label span {
  font-size: 0.9375rem;
  color: var(--text);
}

.btn-block {
  width: 100%;
  padding: 0.875rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  margin-top: 1rem;
}

/* ========== Mobile Bottom Navigation ========== */
.mobile-bottom-nav {
  display: flex;
  background: var(--nav-bg);
  border-top: 1px solid var(--nav-border);
  padding-bottom: env(safe-area-inset-bottom, 0);
  flex-shrink: 0;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.625rem 0.5rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.nav-item svg {
  width: 24px;
  height: 24px;
}

.nav-item span {
  font-size: 0.6875rem;
  font-weight: 500;
}

.nav-item.active {
  color: var(--primary);
}

.nav-item:active {
  background: var(--bg-tertiary);
}

/* ========== Mobile Detail Panel (Bottom Sheet) ========== */
.mobile-detail-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  z-index: 300;
  transform: translateY(100%);
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  transition: transform 0.3s ease;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  will-change: transform;
  visibility: hidden;
  pointer-events: none;
}

.mobile-detail-panel.open {
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.mobile-detail-handle {
  width: 40px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 0.75rem auto;
  flex-shrink: 0;
}

.mobile-detail-content {
  flex: 1;
  overflow-y: auto;
  padding: 0 1rem 1rem;
  -webkit-overflow-scrolling: touch;
}

.mobile-detail-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: var(--text-muted);
  text-align: center;
}

.mobile-detail-placeholder p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.mobile-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.mobile-detail-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  flex: 1;
  padding-right: 0.5rem;
}

.mobile-detail-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-tertiary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.25rem;
}

.mobile-detail-meta {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 0.75rem;
  margin-bottom: 1rem;
}

.mobile-detail-meta-row {
  display: flex;
  justify-content: space-between;
  padding: 0.375rem 0;
  font-size: 0.875rem;
}

.mobile-detail-meta-row:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.mobile-detail-meta-row .label {
  color: var(--text-muted);
}

.mobile-detail-description {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-height: 200px;
  overflow-y: auto;
}

.mobile-detail-files {
  margin-bottom: 1rem;
}

.mobile-detail-files h4 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.mobile-detail-file {
  padding: 0.5rem 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  margin-bottom: 0.375rem;
  font-size: 0.8125rem;
}

.mobile-detail-url {
  margin-bottom: 1rem;
}

.mobile-detail-url h4 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.mobile-detail-url a {
  font-size: 0.875rem;
  word-break: break-all;
}

.mobile-detail-actions {
  margin-top: 1rem;
}

.mobile-detail-actions .btn {
  width: 100%;
  padding: 0.875rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--success);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}

/* Mobile Overlay */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 250;
  display: none;
}

.mobile-overlay.hidden {
  display: none;
}

.mobile-overlay.visible {
  display: block;
}

/* ========== Status Bar ========== */
.status-bar {
  padding: 0.375rem 0.75rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--danger);
}

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

.status-center {
  flex: 1;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 0.5rem;
}

.status-right {
  color: var(--text-muted);
}

/* ========== Toast Notifications ========== */
.toast-container {
  position: fixed;
  bottom: 5rem;
  left: 0.75rem;
  right: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: toastSlideIn 0.3s ease;
  pointer-events: auto;
  font-size: 0.875rem;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.info { border-color: var(--primary); }
.toast.warning { border-color: var(--warning); }

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

/* ========== Loading ========== */
.loading-tooltip {
  position: fixed;
  bottom: 6rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.625rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  font-size: 0.8125rem;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-small {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ========== Modal ========== */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.modal.active {
  display: flex;
}

/* ========== Modal (Mobile Optimized) ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.modal-dialog {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1001;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1rem;
  padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0));
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1rem;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-tertiary);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-body {
  margin-bottom: 1rem;
}

.modal-footer {
  display: flex;
  gap: 0.5rem;
}

.modal-footer .btn {
  flex: 1;
  padding: 0.75rem;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-weight: 500;
}

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

.modal-footer .btn-outline {
  background: var(--bg-tertiary);
  color: var(--text);
  border: 1px solid var(--border);
}

/* Hide desktop elements on mobile */
.toolbar,
.tabs,
.catalog-layout,
.panel-center,
.panel-resizer,
.panel-right,
.panel-placeholder,
.item-details,
.data-table,
.settings-section .btn-block,
.mobile-panel-toggle {
  display: none !important;
}

/* Desktop styles (min-width: 769px) */
@media (min-width: 769px) {
  .mobile-header,
  .mobile-search-bar,
  .mobile-results-list,
  .mobile-bottom-nav,
  .mobile-detail-panel,
  .mobile-section-title,
  .mobile-settings-scroll,
  .mobile-job-card,
  .mobile-result-item {
    display: none !important;
  }
  
  .toolbar,
  .tabs,
  .catalog-layout,
  .panel-center,
  .panel-resizer,
  .panel-right {
    display: flex !important;
  }
  
  .panel-right {
    display: flex !important;
  }
  
  .mobile-overlay {
    display: none !important;
  }
  
  .status-bar {
    font-size: 0.75rem;
    padding: 0.375rem 1rem;
  }
  
  .main-tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
  }
  
  .main-tab-content.active {
    display: flex;
  }
  
  .app-browser {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
  }
  
  .toolbar,
  .tabs,
  .app-container.desktop-layout {
    display: flex;
    flex-shrink: 0;
  }
  
  .toolbar {
    flex-shrink: 0;
  }
  
  .tabs {
    flex-shrink: 0;
  }
  
  .app-container.desktop-layout {
    flex: 1;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
  }
  
  .app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
  }
  
  .search-section {
    display: none;
    flex: 1;
    overflow: hidden;
  }
  
  .search-section.active {
    display: flex;
  }
  
  .jobs-section,
  .settings-section {
    display: none;
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
  }

  .jobs-section.active,
  .settings-section.active {
    display: flex;
    flex-direction: column;
  }
  
  .jobs-section h2,
  .settings-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
  }
  
  .toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
  }
  
  .toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 0.5rem;
  }
  
  .app-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .app-logo svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
    flex-shrink: 0;
  }
  
  .app-logo span {
    font-weight: 600;
    font-size: 1rem;
    white-space: nowrap;
  }
  
  .toolbar-search {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    flex: 1;
    min-width: 0;
  }
  
  .toolbar-search input,
  .toolbar-search select {
    padding: 0.375rem 0.625rem;
    font-size: 0.8125rem;
    height: 32px;
    min-width: 0;
  }
  
  .toolbar-search input[type="text"] {
    flex: 1;
    min-width: 80px;
  }
  
  .toolbar-search select {
    width: auto;
    min-width: 0;
    flex: 0 0 auto;
    padding-right: 1.75rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
  }
  
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  
  .btn-primary {
    background: var(--primary);
    color: #fff;
  }
  
  .btn-primary:hover {
    background: var(--primary-dark);
  }
  
  .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text);
    border: 1px solid var(--border);
  }
  
  .btn-secondary:hover {
    background: var(--border);
  }
  
  .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  
  .btn-icon {
    padding: 0.5rem;
  }
  
  .btn-icon svg {
    width: 16px;
    height: 16px;
  }
  
  .btn-success {
    background: var(--success);
    color: #fff;
  }
  
  .btn-success:hover {
    background: #16a34a;
  }
  
  .btn-danger {
    background: var(--danger);
    color: #fff;
  }
  
  .btn-danger:hover {
    background: #dc2626;
  }
  
  .btn-outline {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text);
  }
  
  .btn-outline:hover {
    background: var(--border);
  }
  
  .btn-block {
    width: auto;
    margin-top: 0;
  }
  
  .theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text);
    transition: all 0.2s ease;
    flex-shrink: 0;
  }
  
  .theme-toggle:hover {
    background: var(--border);
  }
  
  .theme-toggle svg {
    width: 20px;
    height: 20px;
  }
  
  [data-theme="dark"] .theme-toggle .icon-sun { display: block; }
  [data-theme="dark"] .theme-toggle .icon-moon { display: none; }
  [data-theme="light"] .theme-toggle .icon-sun { display: none; }
  [data-theme="light"] .theme-toggle .icon-moon { display: block; }
  .theme-toggle .icon-sun { display: block; }
  .theme-toggle .icon-moon { display: none; }
  
  .tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
  }
  
  .tab {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
  }
  
  .tab:hover {
    color: var(--text);
    background: var(--bg-tertiary);
  }
  
  .tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
  }
  
  .tab svg {
    width: 14px;
    height: 14px;
    vertical-align: -2px;
    margin-right: 4px;
  }
  
  .catalog-layout {
    flex: 1;
    display: flex;
    overflow: hidden;
    min-height: 0;
  }
  
  .panel-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 400px;
    min-height: 0;
  }
  
  .results-table-wrapper {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    position: relative;
    min-height: 0;
  }
  
  .catalog-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8125rem;
  }
  
  .catalog-table th {
    position: sticky;
    top: 0;
    z-index: 6;
    background: var(--bg-tertiary);
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    box-shadow: inset 0 -1px 0 var(--border);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
  }
  
  .catalog-table th:hover {
    background: var(--border);
  }
  
  .catalog-table th.sortable {
    cursor: pointer;
    position: relative;
    padding-right: 1.5rem;
  }
  
  .catalog-table th.sortable::after {
    content: '';
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    border: 4px solid transparent;
    border-top-color: var(--text-muted);
    margin-top: 2px;
  }
  
  .catalog-table th.sortable::before {
    content: '';
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    border: 4px solid transparent;
    border-bottom-color: var(--text-muted);
    margin-top: -6px;
  }
  
  .catalog-table th.sorted-asc::after {
    border-top-color: var(--primary);
  }
  
  .catalog-table th.sorted-desc::before {
    border-bottom-color: var(--primary);
  }
  
  .catalog-table tbody tr {
    cursor: pointer;
    transition: background 0.15s;
  }
  
  .catalog-table tbody tr:hover td {
    background: var(--bg-tertiary);
  }
  
  .catalog-table tbody tr.selected td {
    background: var(--primary);
    color: #fff;
  }
  
  .catalog-table td {
    padding: 0.375rem 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
  }
  
  .catalog-table .col-creator {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .catalog-table .col-title {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .catalog-table .col-files,
  .catalog-table .col-size,
  .catalog-table .col-date,
  .catalog-table .col-duration {
    text-align: right;
    white-space: nowrap;
  }
  
  .panel-resizer {
    width: 4px;
    cursor: col-resize;
    background: transparent;
    transition: background 0.2s;
  }
  
  .panel-resizer:hover {
    background: var(--primary);
  }
  
  .panel-right {
    width: 320px;
    min-width: 250px;
    max-width: 450px;
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    overflow-y: auto;
    min-height: 0;
  }
  
  .panel-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 2rem;
    text-align: center;
  }
  
  .item-details {
    padding: 1rem;
  }
  
  .item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
  }
  
  .item-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
  }
  
  .btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: all 0.2s;
  }
  
  .btn-close:hover {
    background: var(--bg-tertiary);
    color: var(--text);
  }
  
  .item-metadata {
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
  }
  
  .metadata-row {
    display: flex;
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--border);
  }
  
  .metadata-row .label {
    width: 80px;
    flex-shrink: 0;
    color: var(--text-muted);
  }
  
  .metadata-row .value {
    flex: 1;
  }
  
  .item-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
  }
  
  .item-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
  }
  
  .item-section:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  
  .item-section h4 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin: 0 0 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .description-content {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
  }
  
  .files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
  }
  
  .file-item {
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    font-size: 0.8125rem;
    transition: background 0.2s;
  }
  
  .file-item:hover {
    background: var(--border);
  }
  
  .file-item-name {
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.25rem;
  }
  
  .file-item-meta {
    color: var(--text-secondary);
    font-size: 0.75rem;
  }
  
  .url-content {
    font-size: 0.875rem;
  }
  
  .url-link {
    color: var(--primary);
    text-decoration: none;
    word-break: break-all;
  }
  
  .url-link:hover {
    text-decoration: underline;
  }
  
  .data-table {
    width: 100%;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
  }
  
  .data-table table {
    width: 100%;
    border-collapse: collapse;
  }
  
  .data-table th,
  .data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
  }
  
  .data-table th {
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
  }
  
  .data-table tbody tr {
    cursor: pointer;
    transition: background 0.2s;
  }
  
  .data-table tbody tr:hover {
    background: var(--bg-tertiary);
  }
  
  .data-table tbody tr:last-child td {
    border-bottom: none;
  }
  
  .settings-group {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
  }
  
  .settings-group:last-child {
    border-bottom: none;
  }
  
  .settings-group h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
  }
  
  .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
  }
  
  .form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
  }
  
  .form-input,
  .form-control,
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  select,
  textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    color: var(--text);
    transition: border-color 0.2s ease;
  }
  
  .form-input:focus,
  .form-control:focus,
  input:focus,
  select:focus,
  textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  }
  
  .toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 1000;
    pointer-events: none;
  }
  
  .toast {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: toastSlideIn 0.3s ease;
    pointer-events: auto;
    font-size: 0.875rem;
  }
  
  .loading-tooltip {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    font-size: 0.875rem;
  }
  
  .empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
  }
  
  .empty-state .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
  }
  
  .modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1001;
  }
  
  .modal-dialog {
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 420px;
    max-height: 90vh;
    overflow: hidden;
    border: 1px solid var(--border);
  }
  
  .modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-secondary);
  }
  
  .modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--text);
  }
  
  .modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s ease;
    width: auto;
    height: auto;
    border-radius: 0;
  }
  
  .modal-close:hover {
    color: var(--text);
  }
  
  .modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--bg-secondary);
  }
  
  .modal-body .form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .modal-body .form-label,
  .modal-body label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
  }
  
  .modal-body .form-control,
  .modal-body input[type="text"],
  .modal-body input[type="number"],
  .modal-body textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    color: var(--text);
    transition: border-color 0.2s ease;
  }
  
  .modal-body input:focus,
  .modal-body textarea:focus {
    outline: none;
    border-color: var(--primary);
  }
  
  .modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
  }
  
  .modal-footer .btn-outline {
    background: var(--bg-tertiary);
    color: var(--text);
    border: 1px solid var(--border);
  }
  
  .modal-footer .btn-outline:hover {
    background: var(--border);
  }
  
  .modal-footer .btn-primary {
    background: var(--primary);
    color: white;
    border: none;
  }
  
  .modal-footer .btn-primary:hover {
    background: var(--primary-dark);
  }
  
  .modal-content {
    position: relative;
    z-index: 1002;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border);
    max-height: 90vh;
    overflow-y: auto;
    width: 90%;
    max-width: 700px;
    padding: 0;
  }
  
  .modal-content.medium {
    max-width: 520px;
  }
  
  .mobile-panel-toggle {
    display: none !important;
  }
}