:root {











    --inv-accent: #0284c7;
  }

  .clean-header {
    text-align: center;
    padding: 36px 20px 24px;
    max-width: 900px;
    margin: 0 auto;
  }

  .clean-header .badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(0, 210, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.25);
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 16px;
    text-transform: uppercase;
  }

  .clean-header h1 {
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-main);
    margin-bottom: 12px;
  }

  .clean-header p {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 720px;
    margin: 0 auto;
  }

    .invoice-container > div {
    min-width: 0;
  }
  .invoice-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px 60px;
    display: grid;
    grid-template-columns: minmax(340px, 420px) 1fr;
    gap: 24px;
    align-items: start;
  }

  /* Editor Panel */
  .editor-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    max-height: 920px;
    overflow-y: auto;
  }

  .editor-section {
    margin-bottom: 22px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
  }

  .editor-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }

  .section-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #38bdf8;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
  }

  .form-group {
    margin-bottom: 12px;
  }

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

  .input-label {
    display: block;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 5px;
  }

  .text-input, .select-input {
    width: 100%;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.2s;
  }

  .text-input:focus, .select-input:focus {
    border-color: var(--accent);
  }

  .textarea-input {
    width: 100%;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    box-sizing: border-box;
    resize: vertical;
    min-height: 60px;
    font-family: inherit;
    transition: border-color 0.2s;
  }

  .textarea-input:focus {
    border-color: var(--accent);
  }

  /* Items List */
  .line-item-row {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 10px;
    position: relative;
  }

  .line-item-top {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
  }

  .line-item-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    align-items: center;
  }

  .btn-remove-item {
    background: transparent;
    border: none;
    color: var(--text-subtle);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .btn-remove-item:hover {
    color: #ef4444;
  }

  .btn-add-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #171c28;
    border: 1px dashed var(--border-color);
    color: var(--accent);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    justify-content: center;
    transition: all 0.15s;
  }

  .btn-add-item:hover {
    background: var(--bg-surface);
    border-color: var(--accent);
  }

  /* Preview Stage */
  .preview-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .preview-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 18px;
  }

  .btn-print-invoice {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    color: #08090d;
    cursor: pointer;
    transition: all 0.2s;
  }

  .btn-print-invoice:hover {
    background: #33dcff;
    box-shadow: 0 0 16px rgba(0, 210, 255, 0.4);
  }

  .paper-container {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: auto;
    position: relative;
  }

  /* Clean Paper Invoice Sheet */
  .invoice-paper {
    width: 794px;
    min-height: 1050px;
    background: #ffffff;
    color: #0f172a;
    padding: 48px 40px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    position: relative;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  /* Invoice Header */
  .inv-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 2px solid var(--inv-accent);
    padding-bottom: 20px;
    margin-bottom: 24px;
  }

  .inv-brand-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 55%;
  }

  .inv-logo-img {
    max-height: 60px;
    max-width: 180px;
    object-fit: contain;
    margin-bottom: 6px;
  }

  .inv-sender-name {
    font-size: 20px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.01em;
  }

  .inv-sender-info {
    font-size: 12px;
    color: #475569;
    line-height: 1.5;
    white-space: pre-line;
  }

  .inv-brand-right {
    text-align: right;
  }

  .inv-doc-badge {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 0.05em;
    color: var(--inv-accent);
    text-transform: uppercase;
    margin-bottom: 8px;
  }

  .inv-meta-table {
    font-size: 12px;
    text-align: right;
    border-collapse: collapse;
    margin-left: auto;
  }

  .inv-meta-table td {
    padding: 3px 6px;
  }

  .inv-meta-label {
    font-weight: 600;
    color: var(--text-subtle);
  }

  .inv-meta-val {
    font-weight: 700;
    color: #0f172a;
  }

  /* Bill To Section */
  .inv-parties {
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 12px;
  }

  .inv-bill-box {
    max-width: 50%;
  }

  .inv-bill-box h4 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--inv-accent);
    margin-bottom: 6px;
  }

  .inv-bill-name {
    font-size: 14px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 4px;
  }

  .inv-bill-info {
    color: #475569;
    line-height: 1.5;
    white-space: pre-line;
  }

  /* Items Table */
  .inv-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
  }

  .inv-table th {
    background: #f8fafc;
    border-bottom: 2px solid #cbd5e1;
    color: #334155;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 12px;
    text-align: left;
  }

  .inv-table th.num-col {
    text-align: right;
  }

  .inv-table td {
    border-bottom: 1px solid #e2e8f0;
    padding: 10px 12px;
    font-size: 12px;
    color: #1e293b;
  }

  .inv-table td.num-col {
    text-align: right;
    font-weight: 600;
  }

  /* Totals Section */
  .inv-bottom-grid {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 24px;
    align-items: start;
    margin-bottom: 24px;
  }

  .inv-notes-box h4 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--inv-accent);
    margin-bottom: 6px;
  }

  .inv-notes-text {
    font-size: 11.5px;
    color: #475569;
    line-height: 1.5;
    white-space: pre-line;
  }

  .inv-totals-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
  }

  .inv-totals-table td {
    padding: 6px 8px;
  }

  .inv-tot-label {
    color: var(--text-subtle);
    font-weight: 600;
  }

  .inv-tot-val {
    text-align: right;
    font-weight: 700;
    color: #0f172a;
  }

  .inv-grand-total {
    border-top: 2px solid var(--inv-accent);
    font-size: 15px !important;
  }

  .inv-grand-total td {
    padding-top: 10px;
    font-weight: 800 !important;
    color: var(--inv-accent) !important;
  }

  /* Footer */
  .inv-footer {
    text-align: center;
    border-top: 1px solid #e2e8f0;
    padding-top: 16px;
    font-size: 11px;
    color: var(--text-muted);
  }

  /* Print Stylesheet */
  @media print {
    body { background: #fff !important; margin: 0; padding: 0; }
    /* Hide all layout elements that shouldn't print */
    .global-nav, .tangent-sidebar, .sidebar-backdrop, .clean-header, .editor-panel, .preview-bar, .info-section, .faq-title, .faq-box, .global-footer {
      display: none !important;
    }

    /* Reset all structural wrappers so they don't take up ghost space */
    .app-canvas, .invoice-container, .preview-wrapper, .paper-container {
      display: block !important;
      margin: 0 !important;
      padding: 0 !important;
      width: 100% !important;
      height: auto !important;
      min-height: 0 !important;
      border: none !important;
      background: transparent !important;
    }

    /* Ensure the sheet prints visibly and naturally */
    .invoice-paper {
      position: relative !important;
      left: auto !important;
      top: auto !important;
      width: 100% !important;
      transform: none !important;
      box-shadow: none !important;
      padding: 15mm !important;
      margin: 0 !important;
      max-width: none !important;
    }

    @page {
      margin: 0;
      size: auto;
    }}

  @media (max-width: 1024px) {
      .invoice-container > div {
    min-width: 0;
  }
  .invoice-container {
      grid-template-columns: 1fr;
    }
    .form-row, .inv-bottom-grid {
      grid-template-columns: 1fr;
    }
    .line-item-bottom {
      grid-template-columns: 1fr;
      gap: 12px;
    }}

    /* --- ZOOM & PAN --- */
    .zoom-toolbar { position: absolute; bottom: 24px; right: 24px; background: rgba(18, 22, 33, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 8px; display: flex; align-items: center; gap: 4px; padding: 6px; z-index: 100; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4); }
    .zoom-btn { background: transparent; border: none; color: var(--text-muted); width: 32px; height: 32px; border-radius: 6px; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1rem; font-weight: 600; transition: all 0.2s ease; }
    .zoom-btn:hover { background: rgba(255, 255, 255, 0.1); color: var(--text-main); }
    .zoom-label { color: var(--text-muted); font-size: 0.75rem; font-weight: 600; padding: 0 8px; min-width: 48px; text-align: center; cursor: pointer; user-select: none; }
    .zoom-label:hover { color: var(--text-main); }
    .zoom-divider { width: 1px; height: 20px; background: rgba(255, 255, 255, 0.1); margin: 0 4px; }
    .paper-container { overflow-y: scroll !important; overflow-x: auto !important; cursor: grab; align-items: flex-start !important; justify-content: flex-start !important; }
    .paper-container.is-dragging { cursor: grabbing; }
    .paper-container.fullscreen-mode { position: fixed !important; top: 0; left: 0; width: 100vw !important; height: 100vh !important; z-index: 9999; border-radius: 0; margin: 0; padding: 40px !important; background: rgba(5, 7, 10, 0.95); }
    .sheet-transform-wrapper { transform-origin: top left;  margin: 0 auto; }
    @media print { .zoom-toolbar { display: none !important; } .sheet-transform-wrapper { transform: none !important; width: auto !important; height: auto !important; margin: 0 !important; }}