/* ==========================================================================
   Elevate Electrical Invoice Constructor — Commercial Workbench Styles
   ========================================================================== */

:root {
  --primary: #f59e0b;
  --primary-hover: #d97706;
  --primary-light: rgba(245, 158, 11, 0.15);
  --primary-border: #fcd34d;
  --accent-blue: #0284c7;
  
  --bg-app: #0f172a;
  --bg-panel: #1e293b;
  --bg-panel-light: #334155;
  --bg-input: #0f172a;
  
  --border-color: #334155;
  --border-subtle: #1e293b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #0f172a;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.25), 0 8px 10px -6px rgb(0 0 0 / 0.25);
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header Bar */
.app-navbar {
  height: 58px;
  background-color: #0b1120;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.brand-badge {
  background: rgba(245, 158, 11, 0.15);
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Mobile Tab Switcher */
.mobile-view-tabs {
  display: none;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  padding: 6px;
  gap: 6px;
}

.mobile-tab-btn {
  flex: 1;
  padding: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.mobile-tab-btn.active {
  background: var(--primary);
  color: #ffffff;
}

/* Main Split Container */
.workbench-container {
  display: grid;
  grid-template-columns: minmax(580px, 48vw) 1fr;
  flex: 1;
  height: calc(100vh - 58px);
  overflow: hidden;
}

/* Left Editor Panel */
.editor-pane {
  background-color: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Section Cards */
.form-card {
  background-color: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-card-title {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.75px;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(115px, 1fr));
  gap: 8px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.form-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input, .form-select, .form-textarea {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  color: var(--text-main);
  padding: 6px 9px;
  font-size: 0.84rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  width: 100%;
}

/* Hide number input stepper spinners so text/numbers never get clipped */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] {
  -moz-appearance: textfield;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 52px;
}

/* Itemized Products Container in Editor (High-Density 2-Tier Cards) */
.items-cards-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 2px;
}

.item-card {
  background: rgba(11, 17, 32, 0.85);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.item-card:hover {
  border-color: #475569;
  background: rgba(15, 23, 42, 0.95);
}

.item-card-top {
  display: grid;
  grid-template-columns: 1fr 58px 78px 105px 85px 32px;
  gap: 6px;
  align-items: center;
}

.item-col-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  margin-bottom: 2px;
  white-space: nowrap;
}

.item-card-bottom {
  width: 100%;
}

.item-price-input {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #f59e0b;
  text-align: right;
}

/* Interactive Direct-on-Document WYSIWYG Editing */
.invoice-doc [contenteditable="true"] {
  outline: none;
  border-radius: 3px;
  transition: background 0.15s ease, box-shadow 0.15s ease;
  min-width: 8px;
  display: inline-block;
}

.invoice-doc [contenteditable="true"]:hover {
  background: rgba(245, 158, 11, 0.12);
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.35);
  cursor: text;
}

.invoice-doc [contenteditable="true"]:focus {
  background: rgba(245, 158, 11, 0.2);
  box-shadow: 0 0 0 1.5px #f59e0b;
}

/* Bottom Workspace Dock Under the PDF */
.preview-bottom-dock {
  width: 100%;
  max-width: 820px;
  margin-top: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-xl);
}

.dock-summary-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.dock-stat-item {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dock-stat-item.highlight {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
}

.dock-stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.dock-stat-val {
  font-size: 1.1rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #ffffff;
}

.dock-stat-val.grand {
  font-size: 1.35rem;
  color: #f59e0b;
}

.dock-actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

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

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

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--bg-panel-light);
  border-color: var(--text-muted);
}

.btn-danger-outline {
  background-color: transparent;
  border-color: #ef4444;
  color: #ef4444;
  padding: 4px 8px;
  font-size: 0.75rem;
}

.btn-danger-outline:hover {
  background-color: #ef4444;
  color: #ffffff;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 0.78rem;
}

/* Right Preview Canvas Pane */
.preview-pane {
  background-color: #0b1120;
  overflow-y: auto;
  overflow-x: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

/* Preview Toolbar & Zoom Suite */
.preview-toolbar {
  position: sticky;
  top: 0;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  z-index: 20;
  margin-bottom: 20px;
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 860px;
}

.toolbar-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #94a3b8;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.zoom-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(2, 6, 23, 0.6);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(51, 65, 85, 0.7);
}

.btn-zoom {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  border: 1px solid #334155;
  background: #1e293b;
  color: #cbd5e1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.15s ease;
  padding: 0;
}

.btn-zoom:hover {
  background: var(--primary);
  color: #0f172a;
  border-color: var(--primary);
}

.zoom-slider {
  width: 75px;
  height: 4px;
  accent-color: var(--primary);
  cursor: pointer;
  background: #334155;
  border-radius: 2px;
}

.zoom-badge {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: monospace;
  color: var(--primary);
  min-width: 38px;
  text-align: center;
}

.btn-zoom-preset {
  padding: 3px 7px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 4px;
  border: 1px solid #334155;
  background: #1e293b;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-zoom-preset:hover {
  color: #f8fafc;
  border-color: #475569;
}

.btn-zoom-preset.active {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--primary);
  color: var(--primary);
}

/* Page Mode Controls in Preview Toolbar */
.page-mode-group {
  display: inline-flex;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 4px;
  padding: 2px;
  gap: 2px;
}

.btn-page-mode {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-page-mode:hover {
  color: #f8fafc;
}

.btn-page-mode.active {
  background: var(--primary);
  color: #0f172a;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

/* Stage Container for responsive scaling */
.preview-stage {
  position: relative;
  display: block;
  margin: 0 auto 30px auto;
  transition: width 0.12s ease-out, height 0.12s ease-out;
  flex-shrink: 0;
}

/* Multi-Page Container: holds Page 1 and Page 2 */
.a4-pages-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  position: absolute;
  top: 0;
  left: 50%;
  transform-origin: top center;
  transform: translateX(-50%) scale(1);
  transition: transform 0.12s ease-out;
}

/* Side-by-Side Mode */
.a4-pages-container.side-by-side {
  flex-direction: row;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
}

/* A4 Sheet Container (Each Page) */
.a4-sheet {
  width: 210mm;
  min-height: 297mm;
  height: 297mm;
  background-color: #ffffff;
  color: #0f172a;
  padding: 12mm 15mm;
  box-shadow: 0 12px 30px -6px rgba(0, 0, 0, 0.45), 0 8px 12px -6px rgba(0, 0, 0, 0.3);
  border-radius: 3px;
  margin-bottom: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  overflow: hidden;
}

/* Page Corner Badge */
.page-badge-corner {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--primary);
  color: #0f172a;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-bottom-left-radius: 6px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  text-transform: uppercase;
  z-index: 10;
  user-select: none;
}

/* Page Break Divider between Page 1 and Page 2 in stacked mode */
.page-break-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 210mm;
  gap: 12px;
  margin: -8px 0;
  user-select: none;
}

.page-break-line {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(to right, #475569 0, #475569 6px, transparent 6px, transparent 12px);
}

.page-break-pill {
  background: #1e293b;
  border: 1px solid #334155;
  color: #94a3b8;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 14px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.page-break-pill i {
  color: var(--primary);
}

/* Page 2 Continuation Header */
.inv-continuation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1.5px solid #cbd5e1;
  margin-bottom: 12px;
}

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

.inv-continuation-logo {
  height: 30px;
  width: auto;
}

.inv-continuation-meta {
  text-align: right;
}

.inv-continuation-badge {
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.4);
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
}

.inv-continuation-table-header {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.mobile-bottom-bar {
  display: none;
}

/* Responsive Mobile & Tablet Layout */
@media (max-width: 1024px) {
  .workbench-container {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
  
  .mobile-view-tabs {
    display: flex;
    position: sticky;
    top: 58px;
    z-index: 99;
    background: #0f172a;
    border-bottom: 2px solid var(--border-color);
  }
  
  .editor-pane {
    height: auto;
    overflow: visible;
    padding: 16px 12px;
  }
  
  .preview-pane {
    height: auto;
    overflow: visible;
    padding: 12px 6px;
  }

  .preview-stage {
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
  }
  
  .a4-sheet {
    position: relative !important;
    left: auto !important;
    top: auto !important;
    transform: none !important;
    width: 100% !important;
    min-height: auto !important;
    padding: 14px 10px;
    box-sizing: border-box;
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .app-navbar {
    height: auto;
    padding: 8px 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .brand-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .brand-title {
    font-size: 0.95rem;
  }

  .nav-actions {
    display: flex;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .nav-actions::-webkit-scrollbar {
    display: none;
  }

  .nav-actions .btn {
    white-space: nowrap;
    padding: 7px 10px;
    font-size: 0.78rem;
    flex-shrink: 0;
  }

  /* Prevent iOS zoom on focus */
  .form-input, .form-select, .form-textarea {
    font-size: 16px !important;
    padding: 10px 12px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Items Table Mobile Card Layout */
  .items-editor-table thead {
    display: none;
  }

  .items-editor-table, 
  .items-editor-table tbody, 
  .items-editor-table tr, 
  .items-editor-table td {
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  .items-editor-table tr {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 12px;
  }

  .items-editor-table td {
    padding: 4px 0;
    border: none;
  }

  .item-row-actions {
    margin-top: 8px;
    justify-content: flex-end;
  }

  /* Mobile floating quick action bar */
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    background: #0b1120;
    border-top: 1px solid var(--border-color);
    padding: 8px 12px;
    gap: 8px;
    z-index: 1000;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.4);
  }

  .mobile-bottom-bar .btn {
    flex: 1;
    padding: 10px 6px;
    font-size: 0.82rem;
  }

  body {
    padding-bottom: 58px;
  }
}

/* Modal Dialog Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  width: 90%;
  max-width: 580px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 20px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid #334155;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: #0f172a;
}

/* Interactive On-Document Editable Elements */
.invoice-doc [contenteditable="true"] {
  outline: none;
  border-radius: 3px;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  cursor: text;
}

.invoice-doc [contenteditable="true"]:hover {
  background-color: rgba(245, 158, 11, 0.08);
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.35);
}

.invoice-doc [contenteditable="true"]:focus {
  background-color: rgba(245, 158, 11, 0.12);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.7);
}

.invoice-doc span[contenteditable="true"] {
  display: inline-block;
  min-width: 14px;
  min-height: 1.1em;
  vertical-align: baseline;
}

.invoice-doc span[contenteditable="true"]:empty {
  min-width: 24px;
  border-bottom: 1px dashed rgba(245, 158, 11, 0.5);
}

.invoice-doc th,
.invoice-doc td {
  display: table-cell !important;
}

.invoice-doc tr {
  display: table-row !important;
}

.invoice-doc table {
  display: table !important;
  width: 100% !important;
}

.invoice-doc thead {
  display: table-header-group !important;
}

.invoice-doc tbody {
  display: table-row-group !important;
}

.invoice-doc [contenteditable="true"]:hover {
  background: rgba(245, 158, 11, 0.12);
  outline: 1px dashed rgba(245, 158, 11, 0.5);
}

.invoice-doc [contenteditable="true"]:focus {
  background: rgba(245, 158, 11, 0.18);
  outline: 2px solid #f59e0b;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.3);
}

/* Ensure clean printing without borders or focus outlines */
@media print {
  .invoice-doc [contenteditable="true"],
  .invoice-doc [contenteditable="true"]:hover,
  .invoice-doc [contenteditable="true"]:focus {
    background: transparent !important;
    outline: none !important;
    box-shadow: none !important;
  }
}