/* styles.css - Production Invoicing Stylesheet */

/* ----------------------------------------------------
   0. Local Dhivehi/Thaana Fonts
   A_Faruma and A_Rivethi contain Thaana glyphs only (no Latin letters).
   Faruma_Regular contains both Thaana and Latin letters.
   Font stacks below fall back to Faruma_Regular for any Latin characters
   when A_Faruma/A_Rivethi are selected, so English text still displays.
   ---------------------------------------------------- */
@font-face {
  font-family: 'A_Faruma';
  src: url('fonts/A_Faruma.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'A_Rivethi';
  src: url('fonts/A_Rivethi.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Faruma_Regular';
  src: url('fonts/Faruma_Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* ----------------------------------------------------
   1. Theme Variables & Base Style Reset
   ---------------------------------------------------- */
:root {
  /* Default Theme: Light Mode & Customizer Defaults */
  --primary-color: #2563eb;
  --accent-color: #3b82f6;
  --header-bg: #f8fafc;
  --table-header-txt: #ffffff;
  --border-radius: 8px;
  --font-family: 'Faruma_Regular', 'Inter', sans-serif;
  --font-size-base: 13px;

  /* Theme-specific Colors (System Light) */
  --bg-app: #f1f5f9;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --input-bg-focus: #f8fafc;
  --input-border-focus: #2563eb;
  --btn-secondary-bg: #f1f5f9;
  --btn-secondary-hover: #e2e8f0;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Invoice Grid Spacing */
  --invoice-padding: 40px;
}

[data-theme="dark"] {
  /* Theme-specific Colors (System Dark) */
  --bg-app: #090d16;
  --bg-sidebar: #0f172a;
  --bg-card: #1e293b;
  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --border-color: #334155;
  --input-bg-focus: #0f172a;
  --input-border-focus: #3b82f6;
  --btn-secondary-bg: #334155;
  --btn-secondary-hover: #475569;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  background-color: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Scrollbars styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-app);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}

/* Keyboard Outline */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ----------------------------------------------------
   2. Layout & Containers
   ---------------------------------------------------- */
.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100vw;
}

/* Sidebar Controls */
.sidebar {
  width: 340px;
  flex-shrink: 0;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  transition: background-color 0.25s ease, border-color 0.25s ease;
  z-index: 10;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  color: var(--primary-color);
  width: 28px;
  height: 28px;
}

.app-brand h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.1;
}

.app-brand p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

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

/* Hide theme icons appropriately */
[data-theme="light"] .theme-icon-light,
[data-theme="dark"] .theme-icon-dark {
  display: none;
}

.theme-toggle-btn svg {
  width: 16px;
  height: 16px;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

.sidebar-section h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* Workspace Canvas */
.workspace {
  flex-grow: 1;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-y: auto;
  height: 100vh;
  gap: 20px;
}

/* ----------------------------------------------------
   3. Input Fields & Common UI Elements
   ---------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.8rem;
}

.form-control {
  width: 100%;
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  background-color: var(--bg-sidebar);
}

.color-pickers-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.color-picker-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--bg-app);
  overflow: hidden;
  padding: 4px;
  height: 38px;
}

.color-picker-wrapper input[type="color"] {
  border: none;
  background: none;
  width: 36px;
  height: 28px;
  cursor: pointer;
  padding: 0;
  border-radius: 4px;
}

.color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
.color-picker-wrapper input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.color-hex {
  font-size: 0.75rem;
  font-family: monospace;
  font-weight: 600;
  padding-left: 8px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.range-slider {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-slider input[type="range"] {
  flex-grow: 1;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.range-slider span {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 32px;
  text-align: right;
}

/* Switch styling */
.switch-group {
  display: flex;
  align-items: center;
}

.switch-container {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.8rem;
  user-select: none;
}

.switch-container input {
  display: none;
}

.switch-slider {
  position: relative;
  width: 36px;
  height: 20px;
  background-color: var(--border-color);
  border-radius: 20px;
  transition: all 0.3s ease;
}

.switch-slider::before {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: #ffffff;
  top: 3px;
  left: 3px;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.switch-container input:checked + .switch-slider {
  background-color: var(--primary-color);
}

.switch-container input:checked + .switch-slider::before {
  transform: translateX(16px);
}

/* Keyboard shortcut indicator */
.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.sidebar-footer kbd {
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 4px;
  font-family: monospace;
  font-weight: bold;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--border-radius);
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  border: 1px solid transparent;
  width: 100%;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

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

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

.btn-danger-outline {
  background-color: transparent;
  border-color: #f87171;
  color: #ef4444;
}
.btn-danger-outline:hover {
  background-color: #fef2f2;
  border-color: #dc2626;
}
[data-theme="dark"] .btn-danger-outline:hover {
  background-color: #451a1a;
  border-color: #f87171;
}

.btn-share {
  background-color: #25d366;
  color: #ffffff;
}
.btn-share:hover {
  background-color: #1ebe57;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  transform: translateY(-1px);
}
.btn-share:active {
  transform: translateY(0);
}
.btn[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}
.btn .spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: btn-spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

/* Used momentarily while html2canvas captures the invoice for the
   Share PDF button, so upload placeholders / add-item controls don't
   end up baked into the shared PDF. */
body.capturing-pdf .no-print {
  display: none !important;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
  width: auto;
}

.actions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.file-upload-label {
  width: 100%;
}

/* ----------------------------------------------------
   4. Validation Errors Panel
   ---------------------------------------------------- */
.validation-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
}

.val-error-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background-color: #fef2f2;
  border: 1px solid #fca5a5;
  color: #b91c1c;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.3;
}
[data-theme="dark"] .val-error-item {
  background-color: #2d1e1e;
  border-color: #7f1d1d;
  color: #fca5a5;
}

.val-error-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 1px;
}

.val-success-msg {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #15803d;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 8px 0;
}
[data-theme="dark"] .val-success-msg {
  color: #4ade80;
}

.val-success-msg svg {
  width: 16px;
  height: 16px;
  color: inherit;
}

/* ----------------------------------------------------
   5. Invoice Paper / Canvas Layout (Light theme look ALWAYS on paper)
   ---------------------------------------------------- */
.invoice-container {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 900px;
}

/* The A4 Canvas Card */
.invoice-card {
  width: 210mm;
  min-height: 297mm;
  background-color: #ffffff;
  color: #1e293b; /* Enforce high-contrast dark text always inside sheet */
  padding: var(--invoice-padding);
  box-shadow: var(--shadow-card);
  border-radius: var(--border-radius);
  border: 1px solid #cbd5e1;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-radius 0.25s ease;
}

/* Dark mode tweaks for editing wrapper but keeping invoice sheet mostly white */
[data-theme="dark"] .invoice-card {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  border-color: #475569;
}

/* Stripe Accent line */
.top-stripe {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background-color: var(--primary-color);
  border-top-left-radius: inherit;
  border-top-right-radius: inherit;
  display: none; /* Triggered by layout template */
}

/* Header style dividers */
.header-divider {
  border: 0;
  height: 1px;
  background-color: #cbd5e1;
  margin: 24px 0;
}

/* Inline Editable Inputs styling */
.editable-input,
.editable-textarea,
.editable-select {
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  width: 100%;
  padding: 4px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
  resize: none;
}

.editable-input:hover,
.editable-textarea:hover {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
}

.editable-input:focus,
.editable-textarea:focus {
  outline: none;
  background-color: #ffffff;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.editable-select {
  cursor: pointer;
  appearance: none;
  padding-right: 18px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' path d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  background-size: 12px;
}

.editable-select:hover {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
}
.editable-select:focus {
  outline: none;
  background-color: #ffffff;
  border-color: var(--primary-color);
}

/* Remove default number input spin buttons inside sheet */
.editable-input[type="number"]::-webkit-outer-spin-button,
.editable-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.editable-input[type="number"] {
  -moz-appearance: textfield;
}

/* ----------------------------------------------------
   6. Detailed Invoice Sections inside sheet
   ---------------------------------------------------- */

/* Logo upload controls */
.logo-upload-zone {
  width: 180px;
  height: 80px;
  border: 2px dashed #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
  user-select: none;
  background-color: #f8fafc;
}

.logo-upload-zone:hover {
  border-color: var(--primary-color);
  background-color: #f1f5f9;
}

.logo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: #64748b;
}

.logo-placeholder svg {
  width: 22px;
  height: 22px;
}

.logo-placeholder span {
  font-size: 0.7rem;
  line-height: 1.3;
}

.logo-preview-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-preview-wrapper img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.remove-img-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background-color: rgba(239, 68, 68, 0.9);
  color: #ffffff;
  border: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.logo-upload-zone:hover .remove-img-btn {
  opacity: 1;
}

.remove-img-btn svg {
  width: 12px;
  height: 12px;
}

/* Company Header Layout */
.invoice-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.header-main-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex-grow: 1;
}

.company-details {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 380px;
}

.company-name-field {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  padding: 4px 6px;
  line-height: 1.2;
}

.company-subfields {
  display: flex;
  gap: 12px;
  font-size: 0.75rem;
  color: #64748b;
  font-weight: 500;
}

.company-contact {
  width: 260px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  text-align: right;
  align-items: flex-end;
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  width: 100%;
  justify-content: flex-end;
}

.contact-row svg {
  width: 12px;
  height: 12px;
  color: #94a3b8;
  margin-top: 6px;
}

.address-field {
  text-align: inherit;
  line-height: 1.4;
  height: auto;
}

/* Billing Details Block */
.invoice-meta-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  margin-bottom: 24px;
}

.client-info-block {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.meta-section-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-color);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 4px;
}

.client-name-field {
  font-size: 1.1rem;
  font-weight: 700;
}

.inline-row {
  font-size: 0.8rem;
  justify-content: flex-start;
}
.inline-row svg {
  margin-top: 6px;
  margin-left: 2px;
}

.bill-to-pane .address-field {
  text-align: left;
}

.ship-to-pane {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.ship-to-pane .address-field {
  text-align: left;
}

/* Invoice Meta Info (Right pane) */
.invoice-details-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.invoice-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--primary-color);
  text-align: right;
  padding: 0 6px;
}

.meta-grid {
  display: grid;
  grid-template-columns: auto 160px;
  column-gap: 12px;
  row-gap: 6px;
  font-size: 0.85rem;
  text-align: right;
  align-items: center;
}

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

.meta-val input {
  text-align: right;
}

.meta-val select {
  text-align: right;
}

.currency-select-wrapper {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: flex-end;
}

.custom-symbol-input {
  width: 50px !important;
  font-family: monospace;
  text-align: center;
  border-color: #cbd5e1 !important;
  background-color: #f8fafc !important;
}

/* ----------------------------------------------------
   7. Items Table Elements
   ---------------------------------------------------- */
.items-table-wrapper {
  margin-top: 12px;
  margin-bottom: 12px;
}

.items-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.items-table th {
  background-color: var(--primary-color);
  color: var(--table-header-txt);
  padding: 10px 12px;
  font-weight: 700;
  border: 1px solid var(--primary-color);
}

.items-table th:first-child {
  border-top-left-radius: var(--border-radius);
}
.items-table th:last-child {
  border-top-right-radius: var(--border-radius);
}

.items-table td {
  padding: 8px 6px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: middle;
}

.col-num { width: 5%; }
.col-desc { width: 40%; }
.col-qty { width: 9%; }
.col-unit { width: 9%; }
.col-price { width: 12%; }
.col-disc { width: 9%; }
.col-tax { width: 9%; }
.col-amount { width: 12%; }
.col-actions { width: 5%; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.item-row {
  transition: background-color 0.15s ease;
}

.item-row:hover {
  background-color: #f8fafc;
}

.item-desc-area {
  min-height: 38px;
  overflow-y: hidden;
}

.item-actions-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.row-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  color: #94a3b8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.row-action-btn:hover {
  color: #3b82f6;
  background-color: #f1f5f9;
}

.row-action-btn.btn-delete-row:hover {
  color: #ef4444;
  background-color: #fee2e2;
}

.row-action-btn svg {
  width: 14px;
  height: 14px;
}

.add-row-container {
  margin-top: 12px;
}

/* ----------------------------------------------------
   8. Summary and Calculations Block
   ---------------------------------------------------- */
.summary-section {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.bank-details-grid {
  display: grid;
  grid-template-columns: 100px 1fr;
  row-gap: 6px;
  column-gap: 12px;
  font-size: 0.8rem;
  align-items: center;
}

.bank-details-grid label {
  font-weight: 600;
  color: #64748b;
  text-align: left;
}

.instructions-block {
  margin-top: 16px;
  font-size: 0.8rem;
}

.instructions-block label {
  font-weight: 600;
  color: #64748b;
  margin-bottom: 4px;
  display: block;
}

/* Calculations pane */
.totals-pane {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.totals-grid {
  display: grid;
  grid-template-columns: 1fr 120px;
  row-gap: 8px;
  column-gap: 12px;
  font-size: 0.85rem;
  text-align: right;
  align-items: center;
}

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

.total-value {
  font-weight: 500;
  padding-right: 6px;
}

.total-label-input {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  font-weight: 600;
  color: #64748b;
}

.total-value-input {
  display: flex;
  align-items: center;
  border-bottom: 1px solid #cbd5e1;
  padding: 0 4px;
  transition: border-color 0.15s ease;
}

.total-value-input:hover {
  border-color: #94a3b8;
}

.total-value-input:focus-within {
  border-color: var(--primary-color);
}

.curr-sym {
  color: #94a3b8;
  font-weight: 500;
  font-size: 0.8rem;
  padding-right: 2px;
}

.summary-input {
  text-align: right;
  padding: 2px 0 2px 2px;
  border: none !important;
  background: transparent !important;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: none !important;
}

.bold-input {
  font-weight: 700;
}

.text-discount {
  color: #dc2626;
  font-weight: 600;
}

.grid-divider {
  grid-column: span 2;
  border: 0;
  height: 1px;
  background-color: #e2e8f0;
  margin: 4px 0;
}

.grand-label {
  font-size: 1.1rem;
  font-weight: 800;
  color: #0f172a;
}
.grand-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-color);
}

.paid-label {
  font-weight: 700;
  color: #0f172a;
}
.paid-value {
  font-weight: 700;
  border-bottom: 2px solid #cbd5e1;
}

.due-label {
  font-size: 1.25rem;
  font-weight: 900;
  color: #0f172a;
  border-top: 1px double #94a3b8;
  padding-top: 8px;
}
.due-value {
  font-size: 1.25rem;
  font-weight: 900;
  color: #ef4444; /* High warning for balance due */
  border-top: 1px double #94a3b8;
  padding-top: 8px;
}

/* ----------------------------------------------------
   9. Terms, Notes, Footers
   ---------------------------------------------------- */
.notes-terms-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid #cbd5e1;
}

.notes-box, .terms-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.notes-box label,
.terms-box label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #64748b;
  letter-spacing: 0.05em;
}

.notes-box textarea,
.terms-box textarea {
  font-size: 0.8rem;
  line-height: 1.4;
  color: #475569;
}

/* Footer layout */
.invoice-footer {
  margin-top: 30px;
  padding-top: 16px;
  border-top: 1px solid #cbd5e1;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}

.footer-message-block {
  flex-grow: 1;
}

.footer-signature-message {
  font-size: 0.75rem;
  color: #94a3b8;
  text-align: left;
}

/* Authorized Signature area */
.signature-block {
  width: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.signature-upload-zone {
  width: 100%;
  height: 60px;
  border: 1px dashed #cbd5e1;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-color: #f8fafc;
  user-select: none;
}

.signature-upload-zone:hover {
  border-color: var(--primary-color);
  background-color: #f1f5f9;
}

.sig-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: #94a3b8;
}
.sig-placeholder svg {
  width: 18px;
  height: 18px;
}
.sig-placeholder span {
  font-size: 0.65rem;
}

.sig-preview-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sig-preview-wrapper img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

.signature-meta {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sig-name {
  font-weight: 700;
  font-size: 0.85rem;
}

.sig-title {
  font-size: 0.75rem;
  color: #64748b;
}

.sig-date {
  font-size: 0.75rem;
  color: #94a3b8;
  text-align: center;
  border-top: 1px solid #e2e8f0 !important;
  margin-top: 4px;
  border-radius: 0;
}

/* ----------------------------------------------------
   10. Layout Customizer styles
   ---------------------------------------------------- */

/* Classic layout */
.layout-classic .invoice-card {
  border: 3px double #94a3b8;
}
.layout-classic .invoice-header {
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.layout-classic .header-main-info {
  align-items: center;
}
.layout-classic .company-contact {
  text-align: center;
  align-items: center;
  width: 100%;
}
.layout-classic .company-contact .contact-row {
  justify-content: center;
}
.layout-classic .invoice-meta-section {
  grid-template-columns: 1fr 1fr;
}
.layout-classic .invoice-details-block {
  align-items: flex-end;
}
.layout-classic .items-table th {
  background-color: transparent !important;
  color: #000000 !important;
  border-bottom: 2px solid #000000;
  border-top: 2px solid #000000;
  border-left: none;
  border-right: none;
  border-radius: 0 !important;
}
.layout-classic .items-table td {
  border-bottom: 1px solid #cbd5e1;
}

/* Modern Layout (Default is modern) */
.layout-modern .invoice-card {
  border: 1px solid #cbd5e1;
}

/* Creative Layout */
.layout-creative .invoice-card {
  border-left: 20px solid var(--primary-color);
  border-radius: 0;
}
.layout-creative .invoice-header {
  background-color: var(--header-bg);
  margin: calc(var(--invoice-padding) * -1) calc(var(--invoice-padding) * -1) 24px calc(var(--invoice-padding) * -1);
  padding: 30px var(--invoice-padding);
  border-bottom: 1px solid #cbd5e1;
}
.layout-creative .header-divider {
  display: none;
}

/* Bold Stripe Layout */
.layout-stripe .invoice-card {
  border: 1px solid #cbd5e1;
}
.layout-stripe .top-stripe {
  display: block;
}
.layout-stripe .invoice-header {
  padding-top: 10px;
}
.layout-stripe .items-table th {
  background-color: #0f172a !important;
  color: #ffffff !important;
  border: 1px solid #0f172a;
}
.layout-stripe .grand-value {
  color: #0f172a;
}

/* ----------------------------------------------------
   11. Preview Banner and Preview Mode
   ---------------------------------------------------- */
.preview-banner {
  background-color: #1e3a8a;
  color: #ffffff;
  width: 100%;
  max-width: 900px;
  padding: 12px 20px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 0.85rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 10px;
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.preview-banner.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.preview-banner span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.preview-banner span svg {
  width: 16px;
  height: 16px;
}

/* Active Preview Mode overrides inside application workspace */
.preview-mode-active .sidebar {
  display: none; /* Hide sidebar completely in editor preview */
}

.preview-mode-active .app-layout {
  justify-content: center;
}

.preview-mode-active .workspace {
  padding: 20px;
  align-items: center;
}

/* Hide all editable helpers in preview mode */
.preview-mode-active .logo-placeholder {
  display: none !important;
}
.preview-mode-active .logo-upload-zone:not(.has-image) {
  display: none !important;
}
.preview-mode-active .logo-upload-zone {
  border: none !important;
  background: transparent !important;
}

.preview-mode-active .sig-placeholder {
  display: none !important;
}
.preview-mode-active .signature-upload-zone:not(.has-image) {
  display: none !important;
}
.preview-mode-active .signature-upload-zone {
  border: none !important;
  background: transparent !important;
}

.preview-mode-active .editable-input,
.preview-mode-active .editable-textarea,
.preview-mode-active .editable-select {
  pointer-events: none;
  background-color: transparent !important;
  border-color: transparent !important;
  box-shadow: none !important;
  padding: 4px 0px;
}

.preview-mode-active .editable-select {
  background-image: none !important;
}

.preview-mode-active .contact-icon {
  display: none !important;
}

.preview-mode-active .company-contact,
.preview-mode-active .company-contact textarea {
  text-align: right;
  align-items: flex-end;
}

.preview-mode-active .bill-to-pane textarea {
  text-align: left;
}

.preview-mode-active .ship-to-pane textarea {
  text-align: left;
}

/* ----------------------------------------------------
   12. Print Media Styles (A4 Page Fit)
   ---------------------------------------------------- */
@media print {
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    font-size: 11px !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .no-print {
    display: none !important;
  }

  .app-layout {
    display: block !important;
    width: 100% !important;
  }

  .workspace {
    padding: 0 !important;
    height: auto !important;
    overflow: visible !important;
    display: block !important;
  }

  .invoice-container {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .invoice-card {
    width: 100% !important;
    min-height: 100% !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
  }

  /* Force light colors during printing */
  .editable-input,
  .editable-textarea,
  .editable-select {
    pointer-events: none !important;
    border-color: transparent !important;
    background-color: transparent !important;
    padding: 2px 0px !important;
    color: #000000 !important;
  }
  
  .editable-select {
    background-image: none !important;
  }

  /* Custom styling configurations printed cleanly */
  .items-table th {
    background-color: var(--primary-color) !important;
    color: var(--table-header-txt) !important;
    border-color: var(--primary-color) !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  /* Keep Stripe colored */
  .top-stripe {
    background-color: var(--primary-color) !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .layout-creative .invoice-card {
    border-left: 15px solid var(--primary-color) !important;
  }

  .layout-creative .invoice-header {
    background-color: var(--header-bg) !important;
    margin: 0 -20px 24px -20px !important;
    padding: 20px !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .layout-classic .invoice-card {
    border: 3px double #000000 !important;
  }

  .layout-classic .items-table th {
    background-color: transparent !important;
    color: #000000 !important;
    border-bottom: 2px solid #000000 !important;
    border-top: 2px solid #000000 !important;
  }

  /* Hide image upload helpers when printing */
  .logo-upload-zone:not(.has-image),
  .signature-upload-zone:not(.has-image) {
    display: none !important;
  }
  .logo-upload-zone,
  .signature-upload-zone {
    border: none !important;
    background: transparent !important;
    width: auto !important;
    height: auto !important;
  }
  .logo-preview-wrapper img {
    max-height: 70px !important;
  }
  .sig-preview-wrapper img {
    max-height: 50px !important;
  }

  /* Print Layout Page Margins & Setup */
  @page {
    size: A4 portrait;
    margin: 12mm 12mm 12mm 12mm;
  }

  /* Preventing orphans / widows */
  .summary-section,
  .notes-terms-section,
  .invoice-footer {
    page-break-inside: avoid;
  }

  .items-table tr {
    page-break-inside: avoid;
    page-break-after: auto;
  }
}

/* ----------------------------------------------------
   13. Responsive Styles (Tablet and Mobile adaptation)
   ---------------------------------------------------- */
@media (max-width: 1024px) {
  .app-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    height: auto;
    max-height: 500px;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .workspace {
    height: auto;
    overflow-y: visible;
    padding: 20px 10px;
  }

  .invoice-container {
    overflow-x: auto;
    width: 100%;
    justify-content: flex-start;
    padding: 0 10px;
  }

  .invoice-card {
    width: 100%;
    min-width: 0;   /* fit to screen width as a single page, no whole-card horizontal scroll */
    min-height: auto;
  }

  /* Only the items table scrolls horizontally if it's too wide, not the whole invoice */
  .items-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .items-table {
    min-width: 620px;
  }
}

/* ----------------------------------------------------
   14. Phone Styles (fit invoice to small screens for editing)
   ---------------------------------------------------- */
@media (max-width: 640px) {
  .workspace {
    padding: 12px 0;
  }

  .invoice-container {
    padding: 0 8px;
  }

  .invoice-card {
    width: 100%;
    min-width: 0;        /* override the tablet 800px lock */
    min-height: auto;
    padding: 20px 16px;  /* shrink from the 40px desktop --invoice-padding */
  }

  /* Header: stack company info above invoice title/meta instead of side-by-side */
  .invoice-header {
    flex-direction: column;
    gap: 16px;
  }

  .company-details {
    max-width: 100%;
  }

  .company-contact {
    width: 100%;
    align-items: flex-start;
    text-align: left;
  }

  .contact-row {
    justify-content: flex-start;
  }

  .invoice-details-block {
    align-items: flex-start;
  }

  .invoice-title {
    text-align: left;
    padding: 0 6px;
    font-size: 1.7rem;
  }

  .meta-grid {
    grid-template-columns: auto 1fr;
    text-align: left;
    width: 100%;
  }

  .meta-val input,
  .meta-val select,
  .currency-select-wrapper {
    text-align: left;
    justify-content: flex-start;
  }

  /* Bill-to / Ship-to: stack instead of two columns */
  .invoice-meta-section {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Items table: only this element scrolls horizontally, not the whole invoice */
  .items-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius);
  }

  .items-table {
    min-width: 620px;
  }

  /* Totals/bank details: stack instead of two columns */
  .summary-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .totals-grid {
    grid-template-columns: 1fr 110px;
  }

  /* Footer: stack signature under the footer note */
  .footer-layout {
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
  }

  .signature-block {
    width: 100%;
  }
}