* { box-sizing: border-box; margin: 0; padding: 0; }
    
    :root {
      --bg-primary: #0f0f0f;
      --bg-secondary: #1a1a1a;
      --bg-tertiary: #2a2a2a;
      --border-primary: #333;
      --border-secondary: #444;
      --text-primary: #e8e8e8;
      --text-secondary: #888;
      --text-tertiary: #666;
      --accent-primary: #4a9;
      --accent-success: #4caf50;
      --accent-warning: #ff9800;
      --accent-error: #f44336;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
      --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
      --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --spacing-xs: 4px;
      --spacing-sm: 8px;
      --spacing-md: 12px;
      --spacing-lg: 16px;
      --spacing-xl: 24px;
      --transition: all 0.2s ease;
    }
    
    body { 
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: var(--bg-primary); 
      color: var(--text-primary); 
      min-height: 100dvh;
      font-size: 16px;
      line-height: 1.6;
    }
    
    header { 
      background: var(--bg-secondary); 
      padding: var(--spacing-lg); 
      border-bottom: 1px solid var(--border-primary);
      box-shadow: var(--shadow-sm);
    }
    
    header h1 { 
      font-size: 1.25rem; 
      margin-bottom: var(--spacing-md);
    }
    
    nav { 
      display: flex; 
      gap: var(--spacing-sm);
      position: relative;
    }
    
    .tab { 
      background: transparent;
      border: none;
      color: var(--text-secondary); 
      padding: var(--spacing-md) var(--spacing-lg);
      font-size: 0.95rem; 
      cursor: pointer;
      position: relative;
      transition: var(--transition);
      min-height: 44px;
      border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    }
    
    .tab:hover {
      color: var(--text-primary);
      background: rgba(74, 170, 153, 0.1);
    }
    
    .tab.active { 
      color: #fff;
    }
    
    .tab.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--accent-primary);
      border-radius: 3px 3px 0 0;
    }
    
    main { 
      padding: var(--spacing-lg); 
      max-width: 600px; 
      margin: 0 auto; 
    }
    
    .panel { display: none; }
    .panel.active { display: block; }
    
    .card { 
      background: var(--bg-secondary); 
      border: 1px solid var(--border-primary); 
      border-radius: var(--radius-md);
      padding: var(--spacing-lg); 
      margin-bottom: var(--spacing-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    
    .card h3 { 
      font-size: 1.1rem; 
      margin-bottom: var(--spacing-md);
      font-weight: 600;
    }
    
    .item-row { 
      display: flex; 
      align-items: center; 
      gap: var(--spacing-md); 
      padding: var(--spacing-md) 0;
      border-bottom: 1px solid var(--border-primary);
      min-height: 44px;
    }
    
    .item-row:last-child { border-bottom: none; }
    .item-row.checked .item-name { text-decoration: line-through; opacity: 0.5; }
    .item-name { flex: 1; }
    .item-qty { color: var(--text-secondary); font-size: 0.9rem; min-width: 3rem; text-align: right; }
    
    input[type="checkbox"] { 
      width: 20px; 
      height: 20px; 
      accent-color: var(--accent-primary);
      cursor: pointer;
    }
    
    input[type="text"], 
    input[type="number"],
    input[type="date"] {
      background: var(--bg-tertiary); 
      border: 1px solid var(--border-secondary); 
      color: var(--text-primary);
      padding: var(--spacing-md); 
      border-radius: var(--radius-sm); 
      font-size: 1rem; 
      width: 100%;
      transition: var(--transition);
      min-height: 44px;
    }
    
    input[type="text"]:focus,
    input[type="number"]:focus,
    input[type="date"]:focus { 
      border-color: var(--accent-primary); 
      outline: none;
      box-shadow: 0 0 0 3px rgba(74, 170, 153, 0.1);
    }
    
    button { 
      cursor: pointer;
      transition: var(--transition);
      min-height: 44px;
    }
    
    .btn { 
      background: var(--accent-primary); 
      color: #fff; 
      border: none; 
      padding: var(--spacing-md) var(--spacing-xl);
      border-radius: var(--radius-sm); 
      font-size: 0.95rem;
      font-weight: 500;
      box-shadow: var(--shadow-sm);
    }
    
    .btn:hover {
      background: #5bb;
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }
    
    .btn-sm { 
      padding: var(--spacing-sm) var(--spacing-md); 
      font-size: 0.85rem;
      min-height: 32px;
    }
    
    .btn-danger { 
      background: var(--accent-error);
    }
    
    .btn-danger:hover {
      background: #e33;
    }
    
    .btn-ghost { 
      background: transparent; 
      border: 1px solid var(--border-secondary); 
      color: var(--text-secondary);
    }
    
    .btn-ghost:hover {
      border-color: var(--accent-primary);
      color: var(--accent-primary);
      background: rgba(74, 170, 153, 0.1);
    }
    
    .add-row { 
      display: flex; 
      gap: var(--spacing-sm); 
      margin-top: var(--spacing-md); 
    }
    
    .add-row input { flex: 1; }
    
    .empty { 
      color: var(--text-tertiary); 
      text-align: center; 
      padding: var(--spacing-xl); 
    }
    
    .login-body { 
      display: flex; 
      align-items: center; 
      justify-content: center; 
      min-height: 100vh;
      padding: var(--spacing-lg);
    }
    
    .login-card { 
      background: var(--bg-secondary); 
      border: 2px solid var(--border-primary); 
      border-radius: var(--radius-lg);
      padding: var(--spacing-xl); 
      text-align: center; 
      max-width: 400px;
      box-shadow: var(--shadow-lg);
    }
    
    .login-card h1 { 
      font-size: 2.5rem; 
      margin-bottom: var(--spacing-lg);
    }
    
    .login-card p { 
      color: var(--text-secondary);
      font-family: Georgia, 'Times New Roman', serif;
      font-size: 1.1rem;
      line-height: 1.7;
      font-style: italic;
      margin: var(--spacing-xl) 0;
      padding: var(--spacing-lg);
      border-top: 1px solid var(--border-primary);
      border-bottom: 1px solid var(--border-primary);
    }
    
    .error { color: var(--accent-error); }
    
    .fab { 
      position: fixed; 
      bottom: 24px; 
      right: 24px; 
      width: 56px; 
      height: 56px;
      border-radius: 50%; 
      background: var(--accent-primary); 
      color: #fff; 
      font-size: 1.5rem;
      border: none; 
      box-shadow: var(--shadow-lg);
      transition: var(--transition);
    }
    
    .fab:hover {
      background: #5bb;
      box-shadow: 0 8px 32px rgba(74, 170, 153, 0.4);
      transform: scale(1.05);
    }
    
    .avatar-circle { 
      width: 32px; 
      height: 32px; 
      border-radius: 50%; 
      display: flex; 
      align-items: center; 
      justify-content: center; 
      font-weight: 600; 
      font-size: 0.9rem; 
      color: #fff; 
      flex-shrink: 0; 
    }

    .user-menu {
      position: absolute;
      top: 100%;
      right: 0;
      margin-top: 8px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-secondary);
      border-radius: var(--radius-md);
      min-width: 200px;
      box-shadow: var(--shadow-lg);
      z-index: 100;
      overflow: hidden;
    }

    .user-menu.hidden {
      display: none;
    }

    .user-menu-header {
      padding: var(--spacing-md) var(--spacing-lg);
      border-bottom: 1px solid var(--border-primary);
      font-weight: 600;
    }

    .user-menu-item {
      display: block;
      padding: var(--spacing-md) var(--spacing-lg);
      color: var(--text-primary);
      text-decoration: none;
      cursor: pointer;
      transition: background 0.15s;
      border-bottom: 1px solid var(--border-primary);
    }

    .user-menu-item:last-child {
      border-bottom: none;
    }

    .user-menu-item:hover {
      background: var(--bg-tertiary);
    }
    
    .cron-row { 
      display: flex; 
      justify-content: space-between; 
      align-items: center; 
      gap: var(--spacing-md); 
    }
    
    .cron-name { font-weight: 500; }
    .cron-schedule { color: var(--text-secondary); font-size: 0.9rem; }
    .cron-model { color: #6a8; font-size: 0.85rem; font-family: monospace; }
    .cron-model.is-default { color: var(--text-secondary); }
    
    .cron-actions { 
      display: flex; 
      align-items: center; 
      gap: var(--spacing-md); 
      flex-shrink: 0; 
    }
    
    .cron-status { font-size: 0.85rem; }
    .cron-enabled { color: var(--accent-success); }
    .cron-disabled { color: var(--accent-error); }
    
    .toggle { 
      position: relative; 
      width: 48px; 
      height: 28px; 
    }
    
    .toggle input { opacity: 0; width: 0; height: 0; }
    
    .toggle .slider { 
      position: absolute; 
      inset: 0; 
      background: var(--border-secondary); 
      border-radius: 28px;
      cursor: pointer; 
      transition: var(--transition);
    }
    
    .toggle .slider:before { 
      content: ''; 
      position: absolute; 
      width: 20px; 
      height: 20px;
      left: 4px; 
      bottom: 4px; 
      background: #fff; 
      border-radius: 50%;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    
    .toggle input:checked + .slider { 
      background: var(--accent-primary);
    }
    
    .toggle input:checked + .slider:before { 
      transform: translateX(20px);
    }
    
    .upload-zone { 
      border: 2px dashed var(--border-secondary); 
      border-radius: var(--radius-md); 
      background: var(--bg-tertiary);
      transition: var(--transition);
    }
    
    .upload-zone.drag-over { 
      border-color: var(--accent-primary); 
      background: rgba(74, 170, 153, 0.1);
    }
    
    .upload-progress {
      width: 100%;
      height: 4px;
      background: var(--bg-tertiary);
      border-radius: 2px;
      overflow: hidden;
      margin-top: var(--spacing-sm);
    }
    
    .upload-progress-bar {
      height: 100%;
      background: var(--accent-primary);
      transition: width 0.3s ease;
    }
    
    .receipt-card { 
      transition: var(--transition);
      cursor: pointer;
    }
    
    .receipt-card:hover { 
      border-color: var(--accent-primary); 
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }
    
    .receipt-item {
      padding: var(--spacing-md);
      border-bottom: 1px solid var(--border-primary);
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }
    
    .receipt-item:hover {
      background: var(--bg-tertiary);
    }
    
    .receipt-item .raw-text {
      font-size: 0.85rem;
      color: var(--text-secondary);
      font-family: monospace;
    }
    
    .modal { 
      position: fixed; 
      inset: 0; 
      background: rgba(0,0,0,0.85); 
      display: flex;
      align-items: center; 
      justify-content: center; 
      z-index: 1000; 
      padding: var(--spacing-lg);
      backdrop-filter: blur(4px);
    }
    
    .modal-content { 
      background: var(--bg-secondary); 
      border: 1px solid var(--border-secondary); 
      border-radius: var(--radius-lg);
      padding: var(--spacing-xl); 
      max-width: 600px; 
      width: 100%; 
      max-height: 90vh;
      overflow-y: auto;
      box-shadow: var(--shadow-lg);
    }
    
    .modal-fullscreen {
      max-width: 1400px;
      width: calc(100% - 32px);
      height: calc(100% - 32px);
      max-height: none;
      display: flex;
      flex-direction: column;
    }
    
    .receipt-review-layout {
      display: flex;
      gap: var(--spacing-xl);
      flex: 1;
      overflow: hidden;
    }
    
    .receipt-image-panel {
      flex: 1;
      overflow: auto;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--bg-primary);
      border-radius: var(--radius-md);
      padding: var(--spacing-lg);
    }
    
    .receipt-image-panel img {
      max-width: 100%;
      max-height: 100%;
      border-radius: var(--radius-sm);
      cursor: zoom-in;
      transition: var(--transition);
    }
    
    .receipt-image-panel img.zoomed {
      cursor: zoom-out;
      max-width: none;
      max-height: none;
      width: auto;
      height: auto;
    }
    
    .receipt-data-panel {
      flex: 1;
      overflow: auto;
      display: flex;
      flex-direction: column;
      gap: var(--spacing-lg);
    }
    
    .editable-field {
      display: inline-block;
      padding: var(--spacing-xs) var(--spacing-sm);
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
    }
    
    .editable-field:hover {
      background: var(--bg-tertiary);
      border-color: var(--border-secondary);
    }
    
    .editable-field input {
      width: 100%;
      background: transparent;
      border: none;
      color: inherit;
      font-size: inherit;
      font-weight: inherit;
      padding: 0;
    }
    
    .validation-row {
      display: flex;
      align-items: center;
      gap: var(--spacing-md);
      padding: var(--spacing-md);
      background: var(--bg-tertiary);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
    }
    
    .validation-row.valid {
      background: rgba(76, 175, 80, 0.1);
      color: var(--accent-success);
    }
    
    .validation-row.invalid {
      background: rgba(243, 67, 54, 0.1);
      color: var(--accent-error);
    }
    
    .line-item {
      padding: var(--spacing-md);
      border: 1px solid var(--border-primary);
      border-radius: var(--radius-sm);
      margin-bottom: var(--spacing-sm);
      transition: var(--transition);
    }
    
    .line-item:hover {
      border-color: var(--border-secondary);
      background: var(--bg-tertiary);
    }
    
    .line-item-header {
      display: flex;
      justify-content: space-between;
      align-items: start;
      margin-bottom: var(--spacing-sm);
    }
    
    .line-item-fields {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--spacing-sm);
      font-size: 0.9rem;
    }
    
    .field-label {
      font-size: 0.75rem;
      color: var(--text-secondary);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: var(--spacing-xs);
    }
    
    .unmatched-badge {
      display: inline-block;
      background: var(--accent-warning);
      color: #000;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-size: 0.75rem;
      font-weight: 600;
    }
    
    @media (max-width: 768px) {
      .receipt-review-layout {
        flex-direction: column;
      }
      
      .receipt-image-panel {
        max-height: 40vh;
      }
      
      .line-item-fields {
        grid-template-columns: 1fr 1fr;
      }
      
      nav {
        overflow-x: auto;
      }
      
      .tab {
        white-space: nowrap;
      }
    }