/* Theme Variables - Sleek Modern Dark/Light Hybrid Theme */
:root {
  /* Colors */
  --bg-app: #0f172a;
  --bg-sidebar: #1e293b;
  --bg-card: #334155;
  --bg-card-hover: #475569;
  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --accent-color: #3b82f6; /* Modern Tech Blue */
  --accent-hover: #2563eb;
  --accent-light: rgba(59, 130, 246, 0.15);
  --success-color: #10b981;
  --success-hover: #059669;
  --border-color: #475569;
  --danger-color: #ef4444;

  /* Scale default: 1mm = 3px on screen for high resolution preview */
  --mm-scale: 3.0px;

  /* Sticker default parameters in mm (will be updated via CSS variables dynamically) */
  --diameter: 45;
  --width: 45;
  --height: 45;
  --bleed: 2.5;
  --margin-top: 5.59;
  --margin-left: 7.37;
  --gap-x: 5;
  --gap-y: 3.05;
  
  /* Calibration offsets in mm */
  --calib-x: 0;
  --calib-y: 0;
}

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

body {
  font-family: 'Cairo', 'Inter', sans-serif;
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* RTL / LTR layout adjustments */
html[dir="rtl"] {
  font-family: 'Cairo', sans-serif;
}
html[dir="ltr"] {
  font-family: 'Inter', sans-serif;
}

/* Header Bar */
.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  font-size: 1.8rem;
  color: var(--accent-color);
  animation: spin 8s linear infinite;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

.header-logo h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

/* Container Layout */
.app-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - 70px);
}

/* Sidebar Styling */
.sidebar {
  width: 420px;
  background-color: var(--bg-sidebar);
  border-left: 1px solid var(--border-color); /* For RTL */
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex-shrink: 0;
}

html[dir="ltr"] .sidebar {
  border-left: none;
  border-right: 1px solid var(--border-color);
}

/* Sidebar Tab navigation and panels */
.sidebar-tabs {
  display: flex;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 0.5rem;
  gap: 0.5rem;
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.75rem 0.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s ease;
  position: relative;
}

.tab-btn:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: var(--accent-color);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Card Panel Styling */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 0.5rem;
}

.section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.section-subheading {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--accent-color);
}

/* Drag and Drop Zone */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: rgba(0, 0, 0, 0.15);
  position: relative;
  overflow: hidden;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-color);
  background-color: var(--accent-light);
}

.file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dropzone-icon {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  transition: transform 0.2s ease;
}

.dropzone:hover .dropzone-icon {
  transform: translateY(-4px);
  color: var(--accent-color);
}

.dropzone-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

/* Visual Sticker Editor Workspace */
.workspace-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
}

.sticker-workspace {
  position: relative;
  width: 250px;
  height: 250px;
  background-color: #3b4252;
  border-radius: 50%;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  touch-action: none;
}

/* The element representing the background, image, and texts of the sticker */
.workspace-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background-color: #ffffff;
  cursor: grab;
}

.workspace-bg:active {
  cursor: grabbing;
}

.workspace-img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: center center;
  pointer-events: none; /* Let drag events hit the parent workspace-bg container */
  display: none; /* Hidden until loaded */
}

/* Overlay Text Styling */
.workspace-text-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.sticker-svg-text {
  width: 100%;
  height: 100%;
}

.sticker-svg-text text {
  font-weight: bold;
}

/* Guides: Cut boundary and Bleed boundary visual helpers */
.workspace-guide {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10;
}

/* Cut line represent the 40mm cut boundary (which is diameter / (diameter + 2*bleed) % of size) */
/* E.g., if diameter is 40 and bleed is 5, total is 50. Cut ratio is 40/50 = 80% */
.safe-guide {
  width: 80%;
  height: 80%;
  border: 2px dashed var(--success-color);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.2); /* Shaded out-of-bounds bleed area */
}

/* Outer bleed line */
.bleed-guide {
  width: 100%;
  height: 100%;
  border: 1px solid var(--danger-color);
}

.workspace-info-badge {
  position: absolute;
  bottom: -10px;
  background-color: var(--success-color);
  color: white;
  padding: 2px 8px;
  font-size: 0.75rem;
  border-radius: 12px;
  z-index: 12;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Form and UI Inputs */
.control-group {
  margin-bottom: 1rem;
}

.control-group-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.control-group label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.val-display {
  color: var(--accent-color);
  font-weight: 600;
}

.range-input {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--accent-color);
  cursor: pointer;
  transition: background-color 0.15s;
}

.range-input::-webkit-slider-thumb:hover {
  background-color: var(--accent-hover);
}

.text-input, .select-input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

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

.control-group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.control-group-border {
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.75rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  background-color: rgba(0, 0, 0, 0.1);
}

/* Color Pickers */
.color-picker-wrapper {
  display: flex;
  gap: 0.5rem;
}

.color-input {
  width: 45px;
  height: 38px;
  border: 1px solid var(--border-color);
  background: none;
  border-radius: 6px;
  cursor: pointer;
}

.color-hex {
  text-transform: uppercase;
}

.color-input-small {
  width: 100%;
  height: 38px;
  border: 1px solid var(--border-color);
  background: none;
  border-radius: 6px;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

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

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

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

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

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

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.9rem 1.5rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-lang {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.btn-lang:hover {
  border-color: var(--accent-color);
  color: var(--text-main);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-group input {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Preview Area */
.preview-area {
  flex: 1;
  background-color: #0b0f19;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  overflow-y: auto;
}

.preview-header {
  text-align: center;
  margin-bottom: 1.5rem;
  max-width: 600px;
}

.preview-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.preview-info {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.sheet-scroll-container {
  display: flex;
  justify-content: center;
  width: 100%;
  padding-bottom: 2rem;
}

/* The A4 Page on screen */
.a4-page {
  position: relative;
  /* Width & Height scaled to mm dimensions */
  width: calc(210 * var(--mm-scale));
  height: calc(297 * var(--mm-scale));
  background-color: #ffffff;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.2s ease;
}

/* Individual Sticker Print Cells */
.sticker-cell {
  position: absolute;
  /* Size is the printed width and height */
  width: calc(var(--width) * var(--mm-scale));
  height: calc(var(--height) * var(--mm-scale));
  
  /* Centering formula: Top-Left coordinates passed dynamically from JavaScript */
  left: calc(var(--cell-left) * var(--mm-scale));
  top: calc(var(--cell-top) * var(--mm-scale));
  
  border-radius: 50%;
  overflow: hidden;
  background-color: #ffffff;
  pointer-events: none;
}

/* The content replica inside each sticker cell */
.sticker-cell-content {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background-color: #ffffff;
}

.sticker-cell-img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: center center;
}

/* Guide outlines rendered on A4 sheet for screen layout verification */
.sticker-cell-guide {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 5;
}

/* Represents the die-cut circle line (safe boundary where sticker peels off) */
.cell-cut-guide {
  width: calc((var(--width) - 2 * var(--bleed)) * var(--mm-scale));
  height: calc((var(--height) - 2 * var(--bleed)) * var(--mm-scale));
  
  left: calc((var(--cell-left) + var(--bleed)) * var(--mm-scale));
  top: calc((var(--cell-top) + var(--bleed)) * var(--mm-scale));
  
  border: 0.8px dashed var(--success-color);
  opacity: 0.65;
}

/* Represents the outer print boundary line (diameter + 2*bleed) */
.cell-bleed-guide {
  width: calc(var(--width) * var(--mm-scale));
  height: calc(var(--height) * var(--mm-scale));
  
  left: calc(var(--cell-left) * var(--mm-scale));
  top: calc(var(--cell-top) * var(--mm-scale));
  
  border: 0.5px solid var(--danger-color);
  opacity: 0.35;
}

/* Hide guides class if unchecked */
.hide-screen-guides .sticker-cell-guide {
  display: none !important;
}

/* Print guide outline physically onto paper (faint lines) */
.print-cut-outline {
  border: 0.25px solid rgba(0, 0, 0, 0.15) !important;
}

/* Calibration Toast Notice */
.toast-calibration {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--bg-card);
  color: var(--text-main);
  border-right: 4px solid var(--accent-color);
  padding: 1rem;
  border-radius: 6px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  max-width: 400px;
  z-index: 1000;
  font-size: 0.85rem;
  animation: slideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

html[dir="ltr"] .toast-calibration {
  border-right: none;
  border-left: 4px solid var(--accent-color);
  right: auto;
  left: 20px;
}

@keyframes slideIn {
  from { transform: translateY(50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Print Stylesheet */
@media print {
  /* Set exact page dimensions for A4 and eliminate margins */
  @page {
    size: A4 portrait;
    margin: 0;
  }
  
  /* Reset document bodies for printing */
  html, body {
    width: 210mm;
    height: 297mm;
    background: #ffffff !important;
    color: #000000 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
  }

  /* Hide screen controls and sidebar */
  .no-print {
    display: none !important;
  }

  .app-container {
    height: 100%;
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
  }

  .page-ruler-wrapper {
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .preview-area {
    padding: 0 !important;
    margin: 0 !important;
    background: transparent !important;
    display: block !important;
    overflow: visible !important;
  }

  .sheet-scroll-container {
    padding: 0 !important;
    margin: 0 !important;
    display: block !important;
    overflow: visible !important;
  }

  /* Force A4 print size in physical millimeters */
  .a4-page {
    position: absolute;
    top: calc(var(--calib-y) * 1mm);
    left: calc(var(--calib-x) * 1mm);
    width: 210mm;
    height: 297mm;
    box-shadow: none !important;
    border-radius: 0 !important;
    background: #ffffff !important;
    page-break-after: avoid;
    overflow: hidden !important;
    -webkit-print-color-adjust: exact; /* Draw colors accurately */
    print-color-adjust: exact;
  }

  /* Re-scale the cells in physical millimeters */
  .sticker-cell {
    width: calc(var(--width) * 1mm);
    height: calc(var(--height) * 1mm);
    
    left: calc(var(--cell-left) * 1mm);
    top: calc(var(--cell-top) * 1mm);
  }

  .sticker-cell-guide {
    display: none !important; /* Hide guides on paper by default */
  }

  /* If explicitly checked, print very faint cut guides */
  .print-guides-active .sticker-cell-guide.cell-cut-guide {
    display: block !important;
    width: calc((var(--width) - 2 * var(--bleed)) * 1mm);
    height: calc((var(--height) - 2 * var(--bleed)) * 1mm);
    left: calc((var(--cell-left) + var(--bleed)) * 1mm);
    top: calc((var(--cell-top) + var(--bleed)) * 1mm);
    border: 0.1mm dashed rgba(0, 0, 0, 0.25) !important;
  }
}

/* Preview Sheet Zoom controls */
.preview-zoom-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  margin-top: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.sheet-zoom-input {
  font-size: 0.85rem;
  font-weight: 600;
  width: 55px;
  text-align: center;
  color: var(--accent-color);
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 4px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.sheet-zoom-input:focus {
  border-color: var(--accent-color);
  background-color: rgba(0, 0, 0, 0.4);
}

.preview-zoom-controls .btn {
  border-radius: 50%;
  width: 28px;
  height: 28px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Individual gaps customization panel styles */
.label-with-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.label-with-action label {
  margin-bottom: 0 !important;
}

.btn-link-toggle {
  background: none;
  border: none;
  color: var(--accent-color);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
  font-size: 0.85rem;
}

.btn-link-toggle:hover {
  background-color: var(--accent-light);
}

.btn-link-toggle.unlinked {
  color: var(--text-muted);
}

.individual-gaps-container {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background-color: rgba(0,0,0,0.25);
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  max-height: 180px;
  overflow-y: auto;
}

.individual-gap-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.individual-gap-row span {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.individual-gap-row input {
  width: 70px;
  padding: 2px 6px;
  font-size: 0.8rem;
  text-align: center;
}

/* Rulers wrapper and tick markers */
.page-ruler-wrapper {
  position: relative;
  margin-top: 25px; /* Leave space for horizontal ruler */
  margin-left: 25px; /* Leave space for vertical ruler */
}

.ruler-horizontal {
  position: absolute;
  top: -22px;
  left: 0;
  width: calc(210 * var(--mm-scale));
  height: 22px;
  background-color: #1e293b;
  border: 1px solid var(--border-color);
  user-select: none;
  cursor: row-resize;
  overflow: hidden;
}

.ruler-vertical {
  position: absolute;
  top: 0;
  left: -22px;
  width: 22px;
  height: calc(297 * var(--mm-scale));
  background-color: #1e293b;
  border: 1px solid var(--border-color);
  user-select: none;
  cursor: col-resize;
  overflow: hidden;
}

.tick {
  position: absolute;
  background-color: #64748b;
}

.ruler-horizontal .tick {
  width: 1px;
  bottom: 0;
}
.ruler-horizontal .tick-minor { height: 4px; }
.ruler-horizontal .tick-medium { height: 8px; }
.ruler-horizontal .tick-major { height: 12px; background-color: var(--accent-color); }

.ruler-horizontal .tick-label {
  position: absolute;
  font-size: 8px;
  color: #94a3b8;
  bottom: 11px;
  transform: translateX(-50%);
  font-family: monospace;
  pointer-events: none;
}

.ruler-vertical .tick {
  height: 1px;
  right: 0;
}
.ruler-vertical .tick-minor { width: 4px; }
.ruler-vertical .tick-medium { width: 8px; }
.ruler-vertical .tick-major { width: 12px; background-color: var(--accent-color); }

.ruler-vertical .tick-label {
  position: absolute;
  font-size: 8px;
  color: #94a3b8;
  right: 12px;
  transform: translateY(-50%);
  font-family: monospace;
  pointer-events: none;
}

/* User pulled custom guide lines */
.page-guides-container {
  position: absolute;
  top: 0;
  left: 0;
  width: calc(210 * var(--mm-scale));
  height: calc(297 * var(--mm-scale));
  pointer-events: none;
  z-index: 100;
}

.user-guide-line {
  position: absolute;
  background-color: #3b82f6; /* Cyan-blue color */
  pointer-events: auto;
  z-index: 101;
}

.user-guide-line.horizontal {
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-1px);
  cursor: row-resize;
}

.user-guide-line.vertical {
  top: 0;
  height: 100%;
  width: 2px;
  transform: translateX(-1px);
  cursor: col-resize;
}

.user-guide-line:hover {
  background-color: #ef4444 !important; /* turns red to show double click delete */
  box-shadow: 0 0 5px rgba(239, 68, 68, 0.8);
}

.guide-tooltip {
  position: fixed;
  background-color: rgba(15, 23, 42, 0.9);
  color: white;
  padding: 3px 8px;
  font-size: 10px;
  border-radius: 4px;
  pointer-events: none;
  font-family: monospace;
  z-index: 9999;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
}

/* Drag mode segmented selector styles */
.drag-mode-selector {
  display: flex;
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.drag-mode-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
  font-family: inherit;
}

.drag-mode-btn:not(:last-child) {
  border-right: 1px solid var(--border-color);
}

.drag-mode-btn:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.drag-mode-btn.active {
  background-color: var(--accent-color);
  color: white;
}

/* Mouse grab styles for cells */
.a4-page .sticker-cell {
  pointer-events: auto !important; /* Enable mouse events for dragging! */
  cursor: grab;
}

.a4-page .sticker-cell:active {
  cursor: grabbing;
}

/* Responsiveness on screens */
@media (max-width: 992px) {
  .app-container {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }

  .sidebar {
    width: 100%;
    height: auto;
    border-left: none;
    border-bottom: 1px solid var(--border-color);
  }

  .preview-area {
    padding: 1rem 0.5rem;
    overflow: visible;
  }

  .sheet-scroll-container {
    overflow-x: auto;
    justify-content: flex-start;
    padding: 1rem;
  }
}

/* Rectangle Shape Styles */
.shape-rectangle,
.shape-rectangle .sticker-cell,
.shape-rectangle .sticker-cell-content,
.shape-rectangle .sticker-cell-guide,
.shape-rectangle .workspace-bg,
.shape-rectangle .workspace-guide {
  border-radius: 8px !important;
}