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

/* RTL Support */
[dir="rtl"] {
  direction: rtl;
}

[dir="rtl"] .line-item-row {
  flex-direction: row-reverse;
}

[dir="rtl"] .invoice-parties {
  flex-direction: row-reverse;
}

[dir="rtl"] .text-right {
  text-align: left !important;
}

[dir="rtl"] .text-left {
  text-align: right !important;
}

:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --success-color: #10b981;
  --success-hover: #059669;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border-color: #e5e7eb;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-hover: #f3f4f6;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Add a consistent ad container wrapper to prevent layout shift and clarify visuals */
.ad-container {
  display: block;
  width: 100%;
  max-width: 100%;
  min-height: 90px; /* reserve space at common sizes */
  margin: 1rem auto;
  padding: 0.5rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.adslot_1 {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: block;
  width: 320px !important;
  height: 50px !important;
}

@media (max-width: 400px) {
  .adslot_1 {
    visibility: hidden; /* preserves space, reduces accidental clicks */
  }
}
@media (min-width: 500px) {
  .adslot_1 {
    width: 468px !important;
    height: 60px !important;
  }
}
@media (min-width: 800px) {
  .adslot_1 {
    width: 100% !important;
    height: 90px !important;
  }
}

/* Responsive Ad Adjustments */
@media (max-width: 768px) {
  .ad-container {
    padding: 0.5rem;
    margin: 1rem 0;
  }

  .ad-sidebar {
    position: relative;
    top: 0;
  }
}

.app-header {
  text-align: center;
  color: white;
  margin-bottom: 2rem;
  position: relative;
}

.app-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

/* Language Selector Styling */
.language-selector {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
}

[dir="rtl"] .language-selector {
  right: auto;
  left: 1rem;
}

.language-selector select {
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  color: var(--text-primary);
  outline: none;
}

.language-selector select:hover {
  background: rgba(255, 255, 255, 1);
  border-color: var(--primary-color);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.language-selector select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

@media (max-width: 768px) {
  .language-selector {
    position: relative;
    margin-bottom: 1rem;
    right: 0;
    text-align: center;
  }

  .language-selector select {
    width: 100%;
    max-width: 300px;
  }
}

.subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
}

.links,
.app-footer {
  margin: 0.75rem 0 1.25rem 0;
  text-align: center;
  color: white;
  a {
    margin: 0 0.75rem;
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;

    &:hover {
      text-decoration: underline;
    }
  }
}

.app-footer {
  background-color: var(--primary-hover);
  margin: 2rem 0 0 0;
  padding: 1rem;
  text-align: center;
  color: white;
  a {
    color: white;
  }
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.form-section,
.preview-section {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
}

.form-section {
  max-height: 85vh;
  overflow-y: auto;
}

.form-section::-webkit-scrollbar {
  width: 8px;
}

.form-section::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

.form-section::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

.form-section::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

.form-section h2,
.preview-section h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 0.5rem;
}

.preview-section header {
  display: grid;
  margin-bottom: 1rem;
}

.preview-section button {
  margin-bottom: 1rem;
}

.form-section h3 {
  font-size: 1.1rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.form-section h3:first-of-type {
  margin-top: 1.5rem;
  border-top: none;
  padding-top: 0;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--bg-primary);
}

.form-group input:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

select,
::picker(select) {
  appearance: base-select;
}
* {
  box-sizing: border-box;
}

select::picker-icon {
  color: #999999;
  transition: 0.4s rotate;
}
select:open::picker-icon {
  rotate: 180deg;
}

#lineItems {
  margin-bottom: 1rem;
}

.line-item {
  margin-bottom: 0.75rem;
}

.line-item-row {
  display: grid;
  grid-template-columns: 2fr 1fr auto;
  gap: 0.75rem;
  align-items: center;

  &:last-child {
    width: auto;
  }
}

.item-description,
.item-amount {
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.item-description:focus,
.item-amount:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.btn-remove {
  padding: 0.75rem;
  background: var(--danger-color);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-remove:hover {
  background: var(--danger-hover);
  transform: scale(1.05);
}

.btn-primary,
.btn-secondary,
.btn-success {
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  width: 100%;
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--text-secondary);
}

.btn-success {
  background: var(--success-color);
  color: white;
}

.btn-success:hover {
  background: var(--success-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.form-actions {
  display: flex;
  gap: 1rem;
  height: auto;
  margin-top: 2rem;
}

.form-actions button {
  flex: 1;
}

/* Invoice Preview Styles */
.invoice-preview {
  background: white;
  overflow: auto;
  max-height: 800px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.invoice-content {
  padding: 1rem 1.5rem 1rem 1.5rem;
  background: white;
  max-width: 800px;
  margin: 0 auto;
  box-sizing: border-box;
}

.invoice-header {
  text-align: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--primary-color);
  page-break-after: avoid;
}

.invoice-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
  letter-spacing: 2px;
}

.invoice-number {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.invoice-parties {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
  page-break-inside: avoid;
}

.party h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.5px;
}

.party p {
  margin-bottom: 0.2rem;
  color: var(--text-primary);
  line-height: 1.4;
  font-size: 0.9rem;
}

.party-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.3rem !important;
  color: var(--text-primary) !important;
}

.invoice-dates {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  page-break-inside: avoid;
}

.date-item {
  display: flex;
  flex-direction: column;
}

.date-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.date-item span:last-child {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.invoice-items {
  margin-bottom: 1rem;
}

.invoice-items table {
  width: 100%;
  border-collapse: collapse;
}

.invoice-items thead {
  background: var(--primary-color);
  color: white;
}

.invoice-items th {
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.invoice-items td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.invoice-items tbody tr {
  page-break-inside: avoid;
}

.invoice-items tbody tr:hover {
  background: var(--bg-secondary);
}

.text-right {
  text-align: right !important;
}

.text-center {
  text-align: center !important;
}

.text-muted {
  color: var(--text-muted) !important;
  font-style: italic;
}

.total-row {
  background: var(--bg-secondary) !important;
  font-size: 1.1rem;
}

.total-row {
  page-break-inside: avoid;
}

.total-row td {
  border-bottom: none !important;
  padding: 0.75rem !important;
}

.bank-details {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
  page-break-before: auto;
  page-break-inside: avoid;
  page-break-after: avoid;
  break-inside: avoid;
}

.bank-details h3 {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 700;
}

.bank-info {
  margin-bottom: 0.75rem;
  page-break-inside: avoid;
  break-inside: avoid;
}

.bank-info p,
.intermediary-bank p {
  margin-bottom: 0.3rem;
  color: var(--text-primary);
  line-height: 1.5;
  font-size: 0.85rem;
}

.bank-info strong,
.intermediary-bank strong {
  color: var(--text-primary);
  font-weight: 600;
}

.intermediary-bank {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 2px dashed var(--border-color);
  page-break-inside: avoid;
  break-inside: avoid;
}

.intermediary-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 0.5rem !important;
}

.intermediary-title {
  margin-top: 0.3rem;
  margin-bottom: 0.5rem !important;
}

.invoice-footer {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 2px solid var(--border-color);
  page-break-inside: avoid;
}

.footer-note {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  padding: 0.75rem;
  border-radius: 4px;
  color: #92400e;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
  }

  .invoice-content {
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  body {
    padding: 1rem;
  }

  .app-header h1 {
    font-size: 2rem;
  }

  .form-section,
  .preview-section {
    padding: 1.5rem;
  }

  .line-item-row {
    grid-template-columns: 1fr;
    margin-bottom: 2rem;
  }

  .btn-remove {
    width: 100%;
  }

  .form-actions {
    flex-direction: column;
  }

  .invoice-dates {
    grid-template-columns: 1fr;
  }

  .invoice-content {
    padding: 1.5rem;
  }

  .invoice-title {
    font-size: 2rem;
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    padding: 0;
  }

  .form-section,
  .app-header {
    display: none;
  }

  .main-content {
    grid-template-columns: 1fr;
  }

  .preview-section {
    box-shadow: none;
    padding: 0;
  }

  .invoice-preview {
    max-height: none;
    border: none;
  }

  .invoice-content {
    padding: 1rem 1.5rem;
  }
}

/* PDF Generation Optimization */
.invoice-content * {
  box-sizing: border-box;
}

/* Ensure no orphaned content creates blank pages */
.invoice-content > *:last-child {
  margin-bottom: 0 !important;
  padding-bottom: 0.5rem !important;
}

.bank-details:last-child,
.invoice-footer:last-child {
  margin-bottom: 0 !important;
  padding-bottom: 0.5rem !important;
}

/* Additional PDF-specific rules to prevent content cutoff */
@media print {
  .bank-details,
  .bank-info,
  .intermediary-bank {
    page-break-inside: avoid !important;
    break-inside: avoid !important;
  }

  .invoice-content {
    padding: 1.5rem 2rem !important;
  }
}