:root {


    --bg-card-hover: #171b28;







  }

  body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.5;
  }











  .item-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .item-title {
    font-size: 0.86rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .item-desc {
    font-size: 0.72rem;
    color: var(--text-subtle);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* Consolidated Mobile Navigation & Overlay Sidebar (<= 960px) */
  @media (max-width: 960px) {}

  /* --- Tool Header & Workspace --- */
  .clean-header {
    text-align: center;
    padding: 44px 20px 20px 20px;
    max-width: 860px;
    margin: 0 auto;
  }

  .privacy-shield-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(0, 210, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.25);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
  }

  .clean-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
  }

  .clean-header p {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.6;
  }

  .tool-container {
    max-width: 1100px;
    margin: 20px auto 60px auto;
    padding: 0 20px;
  }

  .tool-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }

  /* --- Dropzone Area --- */
  .upload-box {
    border: 2px dashed rgba(0, 210, 255, 0.3);
    border-radius: 14px;
    background: var(--bg-surface);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    position: relative;
  }

  .upload-box:hover, .upload-box.drag-over {
    border-color: var(--accent);
    background: rgba(0, 210, 255, 0.04);
    transform: scale(0.998);
  }

  .upload-icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 16px;
  }

  .upload-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
  }

  .upload-sub {
    font-size: 0.86rem;
    color: var(--text-muted);
    margin-bottom: 18px;
  }

  .upload-btn-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #08090d;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 9px 20px;
    border-radius: 999px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .upload-btn-pill:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 210, 255, 0.4);
  }

  /* --- Option Controls Bar --- */
  .controls-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 24px;
    padding: 16px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
  }

  .control-group {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .control-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
  }

  select.custom-select {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.85rem;
    padding: 7px 12px;
    border-radius: 8px;
    outline: none;
    cursor: pointer;
  }

  select.custom-select:focus {
    border-color: var(--accent);
  }

  .toggle-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
  }

  .toggle-checkbox input {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
    cursor: pointer;
  }

  /* --- Progress State Box --- */
  .progress-card {
    display: none;
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-surface);
    border: 1px solid rgba(0, 210, 255, 0.3);
    border-radius: 12px;
    text-align: center;
  }

  .progress-status-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  .spinner-icon {
    width: 16px;
    height: 16px;
    animation: spin 1s linear infinite;
    color: var(--accent);
  }

  @keyframes spin { 100% { transform: rotate(360deg); }}

  .progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--bg-surface);
    border-radius: 999px;
    overflow: hidden;
    position: relative;
  }

  .progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00d2ff, #3b82f6);
    border-radius: 999px;
    transition: width 0.2s ease;
  }

  /* --- Dual-Pane Workspace --- */
  .workspace-grid {
    display: none;
    margin-top: 28px;
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 24px;
  }

  @media (max-width: 860px) {
    .workspace-grid { grid-template-columns: 1fr; }}

  /* Left Pane: Preview */
  .preview-pane {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    min-height: 480px;
  }

  .pane-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .pane-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
  }

  .page-nav-controls {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .btn-page-nav {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
  }

  .btn-page-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }

  .btn-page-nav:not(:disabled):hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .page-indicator {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
  }

  .preview-viewport {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    max-height: 520px;
  }

  .preview-viewport img, .preview-viewport canvas {
    max-width: 100%;
    max-height: 520px;
    object-fit: contain;
    border-radius: 4px;
  }

  /* Right Pane: OCR Output Editor */
  .editor-pane {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    min-height: 480px;
  }

  .stats-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-subtle);
  }

  .stat-badge {
    color: var(--text-muted);
    font-weight: 600;
  }

  .stat-confidence {
    color: #10b981;
    font-weight: 700;
  }

  .ocr-textarea {
    flex: 1;
    width: 100%;
    min-height: 380px;
    background: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.92rem;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
    margin: 12px 0 16px 0;
  }

  .ocr-textarea:focus {
    border-color: rgba(0, 210, 255, 0.4);
  }

  /* Actions Bar */
  .editor-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }

  .btn-action-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #08090d;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .btn-action-primary:hover {
    box-shadow: 0 4px 14px rgba(0, 210, 255, 0.4);
    transform: translateY(-1px);
  }

  .btn-action-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
  }

  .btn-action-secondary:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.25);
  }

  .btn-reset {
    background: transparent;
    border: none;
    color: var(--text-subtle);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s ease;
  }

  .btn-reset:hover { color: #ef4444; }

  /* Toast Notification */
  .copy-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #10b981;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transform: translateY(12px);
    transition: all 0.25s ease;
    z-index: 3000;
    pointer-events: none;
  }

  .copy-toast.show {
    opacity: 1;
    transform: translateY(0);
  }

  /* --- FAQ Section --- */
  .faq-section {
    max-width: 860px;
    margin: 60px auto 80px auto;
    padding: 0 20px;
  }

  .faq-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
  }

  .faq-box {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  details {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px 20px;
    cursor: pointer;
  }

  details summary {
    font-weight: 600;
    color: var(--text-main);
    outline: none;
  }

  details p {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
  }