/**
 * ToolFlux Lab — Document Studio Stylesheet
 * Responsive Invoice & Quotation Generator UI + High-Fidelity Print Engine
 */

/* Workspace Container */
.doc-studio-workspace {
  padding-block: var(--space-8);
  min-height: calc(100vh - 200px);
}

.doc-studio-header {
  margin-bottom: var(--space-6);
  text-align: center;
}

.doc-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 12px;
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.dark .doc-privacy-badge {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.doc-studio-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.doc-studio-lead {
  font-size: var(--text-base);
  color: var(--text-muted);
  max-width: 680px;
  margin-inline: auto;
  line-height: var(--leading-relaxed);
}

/* Document Mode Tabs (Invoice vs Quotation) */
.doc-tabs-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.doc-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.doc-tab-btn:hover {
  color: var(--text-main);
  border-color: var(--color-brand);
  background: var(--bg-card-hover);
}

.doc-tab-btn.active {
  color: #ffffff;
  background: var(--color-brand);
  border-color: var(--color-brand);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

/* Document Studio Two-Column Grid */
.doc-editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-8);
  align-items: start;
  min-width: 0;
  max-width: 100%;
}

@media (max-width: 1080px) {
  .doc-editor-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Editor Form Panel */
.doc-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.doc-section-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--space-2);
}

.doc-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

@media (max-width: 640px) {
  .doc-form-grid {
    grid-template-columns: 1fr;
  }
}

.doc-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.doc-form-group.full-width {
  grid-column: 1 / -1;
}

.doc-form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.doc-input,
.doc-select,
.doc-textarea {
  width: 100%;
  padding: 9px 12px;
  background-color: var(--input-background);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-main);
  color-scheme: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-family: inherit;
}

.doc-select option {
  background-color: var(--surface);
  color: var(--text-primary);
}

.doc-input:focus,
.doc-select:focus,
.doc-textarea:focus {
  outline: none;
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.doc-textarea {
  resize: vertical;
  min-height: 72px;
}

/* Logo Upload Box */
.doc-logo-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  margin-bottom: var(--space-4);
}

.doc-logo-preview {
  width: 56px;
  height: 56px;
  object-fit: contain;
  background: #ffffff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  display: none;
}

.doc-logo-preview.has-logo {
  display: block;
}

/* Line Items Table */
.doc-items-container {
  margin-block: var(--space-5);
}

.doc-item-row {
  display: grid;
  grid-template-columns: 3.5fr 1fr 1.5fr 1.5fr 36px;
  gap: var(--space-2);
  align-items: center;
  margin-bottom: var(--space-2);
  padding: var(--space-2);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

@media (max-width: 640px) {
  .doc-item-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding: var(--space-3);
  }
  .doc-item-row .doc-item-desc {
    grid-column: 1 / -1;
  }
  .doc-item-row .doc-item-total {
    grid-column: 1 / 2;
  }
  .doc-item-row .doc-item-delete {
    grid-column: 2 / 3;
    justify-self: end;
  }
}

.doc-item-row:hover {
  border-color: var(--border-color);
}

.doc-item-total {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-main);
  text-align: end;
  padding-inline-end: var(--space-2);
}

.doc-btn-icon-del {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--color-error);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.doc-btn-icon-del:hover {
  background: rgba(239, 68, 68, 0.12);
}

/* Totals Summary Box in Form */
.doc-summary-card {
  background: var(--bg-input);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.doc-summary-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  padding-block: var(--space-1);
  color: var(--text-muted);
}

.doc-summary-line.grand-total {
  border-top: 2px dashed var(--border-color);
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--text-main);
}

/* Action Toolbar (Top of Editor or Float) */
.doc-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.doc-toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Document Live Preview A4 Paper Canvas */
.doc-preview-wrapper {
  position: sticky;
  top: 90px;
}

.doc-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.doc-preview-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* A4 Paper Frame */
.doc-paper-sheet {
  background: #ffffff;
  color: #1e293b;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  padding: 36px 42px;
  min-height: 780px;
  font-family: inherit;
  font-size: 13px;
  line-height: 1.55;
  box-sizing: border-box;
  overflow: hidden;
  position: relative;
}

[dir="rtl"] .doc-paper-sheet {
  font-family: 'IBM Plex Sans Arabic', -apple-system, BlinkMacSystemFont, sans-serif;
  direction: rtl;
  text-align: right;
}

[dir="ltr"] .doc-paper-sheet {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  direction: ltr;
  text-align: left;
}

/* Paper Content Elements */
.paper-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid #e2e8f0;
}

.paper-brand {
  max-width: 60%;
}

.paper-logo {
  max-height: 60px;
  max-width: 180px;
  object-fit: contain;
  margin-bottom: 8px;
  display: block;
}

.paper-business-name {
  font-size: 20px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.25;
}

.paper-business-meta {
  color: #64748b;
  font-size: 11px;
  margin-top: 4px;
  white-space: pre-line;
}

.paper-doc-badge {
  text-align: end;
}

.paper-doc-type {
  font-size: 24px;
  font-weight: 900;
  color: #1e3a8a;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.paper-meta-table {
  margin-top: 8px;
  font-size: 11px;
  color: #475569;
}

.paper-meta-row {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-bottom: 3px;
}

.paper-meta-label {
  font-weight: 600;
  color: #64748b;
}

.paper-meta-val {
  font-weight: 700;
  color: #0f172a;
  unicode-bidi: isolate;
}

/* Bill-To & Customer Block */
.paper-parties {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 20px;
}

.paper-party-col {
  flex: 1;
  background: #f8fafc;
  padding: 12px 16px;
  border-radius: 6px;
  border: 1px solid #f1f5f9;
}

.paper-party-title {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.paper-party-name {
  font-size: 14px;
  font-weight: 700;
  color: #0f172a;
}

.paper-party-details {
  font-size: 11px;
  color: #475569;
  margin-top: 4px;
  white-space: pre-line;
}

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

.paper-table th {
  background: #f1f5f9;
  color: #334155;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 8px 10px;
  border-bottom: 2px solid #cbd5e1;
}

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

.paper-table .cell-desc {
  font-weight: 600;
}

.paper-table .cell-qty,
.paper-table .cell-price,
.paper-table .cell-total {
  text-align: end;
  unicode-bidi: isolate;
}

/* Paper Totals */
.paper-bottom-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: start;
}

.paper-notes-box {
  background: #f8fafc;
  border-radius: 6px;
  padding: 12px 14px;
  border: 1px solid #f1f5f9;
}

.paper-notes-title {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.paper-notes-text {
  font-size: 11px;
  color: #475569;
  line-height: 1.5;
  white-space: pre-line;
}

.paper-totals-box {
  border-collapse: collapse;
  width: 100%;
}

.paper-total-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 12px;
  color: #475569;
}

.paper-total-row.grand {
  border-top: 2px solid #0f172a;
  margin-top: 6px;
  padding-top: 8px;
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
}

.paper-total-val {
  font-weight: 700;
  unicode-bidi: isolate;
}

/* Paper Footer */
.paper-footer-msg {
  margin-top: 36px;
  padding-top: 14px;
  border-top: 1px solid #e2e8f0;
  text-align: center;
  font-size: 11px;
  color: #94a3b8;
}

/* =========================================================
   DOCUMENT STUDIO RESPONSIVE RULES (Mobile & Tablet)
========================================================= */
@media (max-width: 900px) {
  .doc-editor-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-6);
  }
  .doc-preview-wrapper {
    position: static;
    top: 0;
  }
}

@media (max-width: 640px) {
  .doc-studio-workspace {
    padding-block: var(--space-4) var(--space-8);
  }
  
  .doc-tabs-bar {
    gap: 8px;
    margin-bottom: var(--space-5);
  }
  
  .doc-tab-btn {
    flex: 1 1 calc(50% - 8px);
    justify-content: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    min-height: 44px;
    box-sizing: border-box;
  }

  .doc-form-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  .doc-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
  }

  .doc-toolbar-group {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: stretch;
  }

  .doc-toolbar-group .btn {
    flex: 1 1 auto;
    justify-content: center;
    min-height: 40px;
    box-sizing: border-box;
  }

  .doc-logo-box {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    max-width: 100%;
    min-width: 0;
  }

  .doc-logo-box > div {
    max-width: 100%;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .doc-logo-box span {
    max-width: 100%;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  .doc-item-row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px;
  }

  .doc-item-row-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .doc-paper-sheet {
    padding: 20px 14px;
    min-height: auto;
    max-width: 100%;
    border-radius: 4px;
    font-size: 11px;
    box-sizing: border-box;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .paper-header {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 14px;
  }

  .paper-brand {
    max-width: 100%;
  }

  .paper-doc-badge {
    text-align: start;
  }

  html[dir="rtl"] .paper-doc-badge {
    text-align: start;
  }

  .paper-meta-row {
    justify-content: flex-start;
  }

  html[dir="rtl"] .paper-meta-row {
    justify-content: flex-start;
  }

  .paper-parties {
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
  }

  .paper-bottom-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .paper-table-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 14px;
  }
}

@media (max-width: 380px) {
  .doc-form-card {
    padding: 12px;
  }
  .doc-paper-sheet {
    padding: 14px 10px;
  }
}

/* PRINT-SPECIFIC CSS RULES (A4 Optimized) */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .site-header,
  .site-footer,
  .doc-studio-header,
  .doc-tabs-bar,
  .doc-form-card,
  .doc-toolbar,
  .doc-preview-header,
  .btn,
  .skip-link,
  .pdf-toast,
  .mobile-nav-drawer,
  .mobile-nav-backdrop {
    display: none !important;
  }

  .doc-studio-workspace,
  .tf-container {
    padding: 0 !important;
    margin: 0 !important;
    max-width: 100% !important;
  }

  .doc-editor-layout {
    display: block !important;
  }

  .doc-preview-wrapper {
    position: static !important;
  }

  .doc-paper-sheet {
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    min-height: auto !important;
  }

  @page {
    size: A4;
    margin: 15mm 15mm 15mm 15mm;
  }

  .paper-table tr {
    page-break-inside: avoid;
  }

  .paper-bottom-grid {
    page-break-inside: avoid;
  }
}