/**
 * PDF-Tools Suite - Global Styles
 * Version: 0.1.0-dev
 */

/* ============================================
   CSS Custom Properties (Theme)
   ============================================ */
:root {
  /* Colors */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-secondary: #7c3aed;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  --color-bg: #f8fafc;
  --color-bg-card: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --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-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-bg-card: #1e293b;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-border: #334155;
  }
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: var(--space-md); }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-sm { max-width: 800px; }
.container-md { max-width: 1000px; }
.container-lg { max-width: 1400px; }

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.logo-icon {
  font-size: 2rem;
}

.nav {
  display: flex;
  gap: var(--space-lg);
}

.nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav a:hover,
.nav a.active {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  text-decoration: none;
}

/* Share Button */
.share-wrapper {
  position: relative;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.share-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.share-dropdown {
  position: absolute;
  top: calc(100% + var(--space-xs));
  right: 0;
  min-width: 180px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 1000;
}

.share-wrapper:hover .share-dropdown,
.share-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.share-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.share-link:hover {
  background: rgba(37, 99, 235, 0.1);
  text-decoration: none;
}

/* Share Icons */
.share-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.share-icon.whatsapp { fill: #25D366; }
.share-icon.telegram { fill: #0088cc; }
.share-icon.facebook { fill: #1877F2; }
.share-icon.x-twitter { fill: var(--color-text); }
.share-icon.linkedin { fill: #0A66C2; }
.share-icon.email { stroke: #EA4335; }
.share-icon.copy { stroke: var(--color-text-muted); }

.share-link:hover .share-icon.x-twitter { fill: var(--color-primary); }
.share-link:hover .share-icon.copy { stroke: var(--color-primary); }

.share-link:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.share-link:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Language Switcher */
.lang-wrapper {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.875rem;
}

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

.lang-btn .lang-flag {
  font-size: 1.1rem;
}

.lang-btn .lang-arrow {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.lang-wrapper:hover .lang-arrow {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + var(--space-xs));
  right: 0;
  min-width: 160px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 1000;
}

.lang-wrapper:hover .lang-dropdown,
.lang-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition-fast);
  font-size: 0.875rem;
}

.lang-link:hover {
  background: rgba(37, 99, 235, 0.1);
  text-decoration: none;
}

.lang-link.active {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  font-weight: 500;
}

.lang-link .lang-flag {
  font-size: 1.1rem;
}

.lang-link:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.lang-link:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Copy Notification */
.copy-notification {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-success);
  color: white;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  opacity: 0;
  transition: all 0.3s ease;
}

.copy-notification.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Mobile Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    gap: var(--space-sm);
  }
  
  .nav.active { display: flex; }
}

/* ============================================
   Main Content
   ============================================ */
.main {
  flex: 1;
  padding: var(--space-2xl) 0;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--space-lg) 0 var(--space-md);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-sm);
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
}

/* ============================================
   Cards & Tools Grid
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.tool-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
  display: block;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  text-decoration: none;
}

.tool-card-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.tool-card h3 {
  margin-bottom: var(--space-sm);
}

.tool-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.tool-card.coming-soon {
  opacity: 0.6;
  pointer-events: none;
}

.tool-card.coming-soon::after {
  content: "Bald verfügbar";
  display: inline-block;
  background: var(--color-warning);
  color: white;
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
}

/* ============================================
   Dropzone (File Upload)
   ============================================ */
.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  background: var(--color-bg-card);
  transition: all var(--transition-base);
  cursor: pointer;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

.dropzone-icon {
  font-size: 4rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.dropzone h3 {
  margin-bottom: var(--space-sm);
}

.dropzone p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.dropzone input[type="file"] {
  display: none;
}

/* ============================================
   File List
   ============================================ */
.file-list {
  margin-top: var(--space-xl);
}

.file-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
}

.file-item:hover {
  border-color: var(--color-primary-light);
}

.file-icon {
  font-size: 1.5rem;
  color: var(--color-error);
}

.file-info {
  flex: 1;
}

.file-name {
  font-weight: 500;
  word-break: break-all;
}

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

.file-actions {
  display: flex;
  gap: var(--space-sm);
}

.file-move {
  cursor: grab;
  color: var(--color-text-muted);
  padding: var(--space-sm);
}

.file-move:hover {
  color: var(--color-text);
}

.file-remove {
  background: none;
  border: none;
  color: var(--color-error);
  cursor: pointer;
  padding: var(--space-sm);
  font-size: 1.25rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.file-remove:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* Drag and Drop Sorting */
.file-item.dragging {
  opacity: 0.5;
  background: rgba(37, 99, 235, 0.1);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:hover { text-decoration: none; }

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

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

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

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

.btn-success:hover {
  background: #059669;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.125rem;
}

/* Action Bar */
.action-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

/* ============================================
   Progress Bar
   ============================================ */
.progress-container {
  margin-top: var(--space-xl);
  display: none;
}

.progress-container.active {
  display: block;
}

.progress-bar {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: width var(--transition-base);
  width: 0%;
}

.progress-text {
  text-align: center;
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-copy {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   Utilities
   ============================================ */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-0 { margin-bottom: 0; }
.hidden { display: none !important; }

/* ============================================
   Alerts / Notifications
   ============================================ */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--color-warning);
  color: #b45309;
}

/* ============================================
   Alert Toast (Floating Notifications)
   ============================================ */
.alert-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s ease;
}

.alert-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

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

.alert-toast.alert-error {
  background: var(--color-error);
  color: white;
}

/* ============================================
   File Card (Single File Display)
   ============================================ */
.file-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.file-card-icon {
  font-size: 2.5rem;
}

.file-card-details {
  flex: 1;
}

.file-card-details h4 {
  margin-bottom: var(--space-xs);
  word-break: break-all;
}

.file-card-details p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.btn-icon:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Options Section (Compression, Format, etc.)
   ============================================ */
.options-section {
  margin-top: var(--space-xl);
}

.options-section h3 {
  margin-bottom: var(--space-lg);
}

.compression-options {
  display: grid;
  gap: var(--space-md);
}

.option-card {
  display: block;
  cursor: pointer;
}

.option-card input[type="radio"] {
  display: none;
}

.option-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

.option-card:hover .option-content {
  border-color: var(--color-primary-light);
}

.option-card input[type="radio"]:checked + .option-content {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

.option-icon {
  font-size: 2rem;
}

.option-content strong {
  font-size: 1rem;
}

.option-content small {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

@media (min-width: 640px) {
  .compression-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   Result Section
   ============================================ */
.result-section {
  margin-top: var(--space-xl);
  text-align: center;
}

.result-card {
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.result-card.success {
  border-color: var(--color-success);
}

.result-icon {
  font-size: 4rem;
  margin-bottom: var(--space-md);
}

.result-card h3 {
  margin-bottom: var(--space-xl);
}

.result-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
}

.stat.highlight .stat-value {
  color: var(--color-success);
  font-size: 2rem;
}

.stat-arrow {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   Page Grid (PDF Split Tool)
   ============================================ */
.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-md);
  max-height: 300px;
  overflow-y: auto;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.page-item {
  aspect-ratio: 1 / 1.414;
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.page-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.page-item.selected {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
}

.page-item.selected::after {
  content: '✓';
  position: absolute;
  top: 4px;
  right: 4px;
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: bold;
}

.page-number {
  font-size: 1.25rem;
  font-weight: 600;
}

.page-label {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Page Actions */
.page-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.page-actions-buttons {
  display: flex;
  gap: var(--space-sm);
}

.page-actions button {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-actions button:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Range Input */
.range-input-section {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.range-input-section h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.9rem;
  font-weight: 500;
}

.range-input-section input[type="text"] {
  width: 100%;
  max-width: 300px;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: var(--color-bg-card);
  color: var(--color-text);
}

.range-input-section input[type="text"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.range-help {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* Selection Bar */
.selection-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  color: white;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-top: var(--space-md);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.selection-bar.active {
  display: flex;
}

.selection-bar button {
  background: white;
  color: var(--color-primary);
  border: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.selection-bar button:hover {
  background: rgba(255,255,255,0.9);
}

/* ============================================
   Preview Grid (PDF to Images Tool)
   ============================================ */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-md);
  max-height: 350px;
  overflow-y: auto;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.preview-item {
  aspect-ratio: 1 / 1.414;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preview-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.preview-item .page-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0,0,0,0.7);
  color: white;
  text-align: center;
  padding: var(--space-xs);
  font-size: 0.75rem;
}

.preview-item.loading {
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-item.loading::after {
  content: '';
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.preview-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
  text-align: center;
}

/* Format Options Grid */
.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.format-option {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.format-option h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Format Buttons */
.format-buttons {
  display: flex;
  gap: var(--space-sm);
}

.format-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

/* Scale Buttons */
.scale-buttons {
  display: flex;
  gap: var(--space-sm);
}

.scale-btn {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

/* Quality Slider */
.quality-slider input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.quality-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
}

.quality-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Download Section */
.download-section {
  display: none;
  text-align: center;
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
}

.download-section.active {
  display: block;
}

.download-section h3 {
  margin: 0 0 var(--space-md) 0;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Footer Note */
.footer-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* ============================================
   PDF Organize Tool
   ============================================ */

/* Toolbar */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  margin: var(--space-lg) 0;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toolbar-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.toolbar-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.toolbar-btn.danger:hover:not(:disabled) {
  border-color: var(--color-error);
  color: var(--color-error);
}

.toolbar-icon {
  font-size: 1rem;
}

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

/* Organize Grid */
.organize-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  min-height: 200px;
}

.organize-page {
  position: relative;
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.organize-page:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.organize-page.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.organize-page.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.organize-page.drag-over {
  border-color: var(--color-success);
  border-style: dashed;
}

.page-thumbnail-wrapper {
  position: relative;
  aspect-ratio: 1 / 1.414;
  overflow: hidden;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.page-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: white;
}

.page-thumbnail.blank {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.page-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.organize-page:hover .page-overlay {
  opacity: 1;
}

.page-action {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: white;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-action:hover {
  transform: scale(1.1);
  background: var(--color-primary);
}

.page-action.danger:hover {
  background: var(--color-error);
}

.organize-page .page-label {
  padding: var(--space-xs) var(--space-sm);
  text-align: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
}

/* Help Text */
.help-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: rgba(37, 99, 235, 0.05);
  border-radius: var(--radius-md);
}

/* Action Buttons */
.action-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
}

.modal-content {
  position: relative;
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.modal-lg {
  width: 800px;
}

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

.modal-header h3 {
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg);
}

.modal-body {
  padding: var(--space-lg);
  overflow-y: auto;
  max-height: calc(90vh - 80px);
}

/* Preview Controls */
.preview-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.preview-canvas-container {
  display: flex;
  justify-content: center;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  overflow: auto;
  max-height: 60vh;
}

.preview-canvas-container canvas {
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow-md);
}

/* Progress Card */
.progress-card {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
}

.progress-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg);
  border-radius: 4px;
  overflow: hidden;
  margin: var(--space-lg) 0;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.85rem;
}

/* ============================================
   Watermark Tool Styles
   ============================================ */

/* Tabs */
.watermark-type-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.tab-btn {
  flex: 1;
  padding: var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  border-color: var(--color-primary-light);
}

.tab-btn.active {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
  color: var(--color-primary);
}

/* Watermark Options */
.watermark-options {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
}

.option-group {
  margin-bottom: var(--space-md);
}

.option-group:last-child {
  margin-bottom: 0;
}

.option-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.option-group input[type="text"],
.option-group select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  background: var(--color-bg-card);
  color: var(--color-text);
}

.option-group input[type="text"]:focus,
.option-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.option-group input[type="color"] {
  width: 60px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.option-group input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.option-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
}

.options-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 480px) {
  .options-row {
    grid-template-columns: 1fr;
  }
}

/* Image Upload Area */
.image-upload-area {
  padding: var(--space-xl);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.image-upload-area:hover,
.image-upload-area.dragover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

.image-upload-area p {
  margin: 0;
}

.image-upload-area .subtext {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.image-preview {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.image-preview img {
  max-width: 100px;
  max-height: 100px;
  object-fit: contain;
}

/* Position Grid */
.position-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  max-width: 200px;
  margin-top: var(--space-md);
}

.position-btn {
  aspect-ratio: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.position-btn:hover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

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

/* Rotation Presets */
.rotation-presets {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.preset-btn {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.preset-btn:hover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

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

/* Page Selection */
.page-selection {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.custom-pages {
  margin-top: var(--space-sm);
  padding-left: var(--space-lg);
}

.custom-pages input {
  width: 100%;
  max-width: 300px;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

/* Preview Section */
.preview-section {
  margin-top: var(--space-xl);
}

.preview-section h3 {
  margin-bottom: var(--space-md);
}

.preview-container {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
}

.preview-container canvas {
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow-md);
}

.watermark-preview {
  position: absolute;
  font-weight: bold;
  pointer-events: none;
  white-space: nowrap;
}

/* ============================================
   PDF to Word Tool Styles
   ============================================ */

/* Info Banner */
.info-banner {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
}

.info-banner .info-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-banner strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.info-banner p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Option Cards (for format selection) */
.option-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.option-card {
  display: block;
  cursor: pointer;
}

.option-card input[type="radio"] {
  display: none;
}

.option-card .option-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

.option-card:hover .option-content {
  border-color: var(--color-primary-light);
}

.option-card input[type="radio"]:checked + .option-content {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

/* Text Preview */
.text-preview-container {
  margin: var(--space-lg) 0;
  text-align: left;
}

.text-preview-container h4 {
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.text-preview {
  max-height: 200px;
  overflow-y: auto;
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ============================================
   Password Protection Tool
   ============================================ */

/* Mode Selection */
.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  max-width: 700px;
  margin: 0 auto;
}

.mode-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-xl);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.mode-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mode-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.mode-card h3 {
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.mode-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Section Header with Back Button */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  margin: 0;
}

.btn-back {
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* Password Input */
.password-input-wrapper {
  display: flex;
  gap: var(--space-sm);
}

.password-input-wrapper input {
  flex: 1;
}

/* Password Strength */
.password-strength {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.strength-bar {
  flex: 1;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.strength-fill {
  height: 100%;
  width: 0;
  transition: all 0.3s ease;
  border-radius: 3px;
}

.strength-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  min-width: 100px;
}

/* Permissions */
.permissions-section h3 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

.permissions-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

/* Password Section */
.password-section {
  max-width: 400px;
}

/* ============================================
   Images to PDF Tool
   ============================================ */

/* Image Grid */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.image-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--color-border);
  cursor: grab;
  transition: all 0.2s ease;
}

.image-item:hover {
  border-color: var(--color-primary);
}

.image-item.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.image-item.drag-over {
  border-color: var(--color-primary);
  border-style: dashed;
  transform: scale(1.02);
}

.image-preview {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.image-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xs) var(--space-sm);
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: white;
  font-size: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.image-number {
  background: var(--color-primary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.image-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.image-item:hover .image-remove {
  opacity: 1;
}

.image-remove:hover {
  background: #dc2626;
}

/* Options Panel */
.options-panel {
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.options-panel h3 {
  margin-bottom: var(--space-md);
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

/* ============================================
   PDF Sign Tool
   ============================================ */

.sign-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .sign-layout {
    grid-template-columns: 1fr;
  }
}

.sign-sidebar {
  background: var(--color-bg);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.sign-sidebar h3 {
  margin-bottom: var(--space-md);
}

/* Sign Tabs */
.sign-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.sign-tab {
  flex: 1;
  padding: var(--space-sm);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s ease;
}

.sign-tab:hover {
  border-color: var(--color-primary);
}

.sign-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* Canvas */
.canvas-wrapper {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: white;
}

.canvas-wrapper canvas {
  display: block;
  width: 100%;
  cursor: crosshair;
}

.canvas-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-sm);
}

.canvas-actions input[type="color"] {
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Font Options */
.font-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.font-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.font-option:hover {
  border-color: var(--color-primary);
}

.font-option input:checked + .font-preview {
  color: var(--color-primary);
}

.font-preview {
  font-size: 1.5rem;
}

/* Upload Signature */
.upload-signature-area {
  padding: var(--space-xl);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.upload-signature-area:hover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

.signature-preview {
  position: relative;
  padding: var(--space-md);
  background: white;
  border-radius: var(--radius-md);
  text-align: center;
}

.signature-preview img {
  max-width: 100%;
  max-height: 100px;
}

.signature-preview .btn-icon {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
}

/* Sign Preview */
.sign-preview {
  display: flex;
  flex-direction: column;
}

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

.preview-nav {
  display: flex;
  gap: var(--space-sm);
}

.preview-container {
  position: relative;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.preview-container canvas {
  display: block;
}

#signaturesLayer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

#signaturesLayer > * {
  pointer-events: auto;
}

.placed-signature {
  position: absolute;
  cursor: move;
  border: 2px dashed transparent;
  transition: border-color 0.2s ease;
}

.placed-signature:hover {
  border-color: var(--color-primary);
}

.placed-signature img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.placed-signature .signature-remove {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ef4444;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.placed-signature:hover .signature-remove {
  opacity: 1;
}

.placing-signature {
  position: absolute;
  pointer-events: none;
  opacity: 0.7;
  border: 2px dashed var(--color-primary);
}

.placing-signature img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Editor Footer */
.editor-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* ============================================
   Page Numbers Tool
   ============================================ */

.page-numbers-settings {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.position-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xs);
  max-width: 180px;
}

.position-btn {
  width: 50px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
}

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

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

.color-options {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.color-presets {
  display: flex;
  gap: var(--space-xs);
}

.color-preset {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.color-preset:hover {
  transform: scale(1.1);
}

.color-preset.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-bg-card), 0 0 0 4px var(--color-primary);
}

.input-sm {
  width: 80px;
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
}

.preview-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.preview-wrapper {
  position: relative;
  display: inline-block;
  background: white;
  box-shadow: var(--shadow-lg);
}

.preview-wrapper canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-number-overlay {
  position: absolute;
  font-family: var(--font-sans);
  pointer-events: none;
  white-space: nowrap;
}

.page-number-overlay.hidden {
  display: none;
}

.editor-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
}

/* ============================================
   PDF Crop Tool
   ============================================ */

.crop-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .crop-layout {
    grid-template-columns: 1fr;
  }
}

.crop-sidebar {
  background: var(--color-bg);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.crop-sidebar h3 {
  margin-bottom: var(--space-md);
}

.crop-modes {
  display: flex;
  gap: var(--space-sm);
}

.crop-mode-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.crop-mode-btn:hover {
  border-color: var(--color-primary);
}

.crop-mode-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.crop-mode-btn .mode-icon {
  font-size: 1.5rem;
}

.margin-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.margin-input {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.margin-input label {
  width: 50px;
  font-size: 0.875rem;
}

.margin-input input {
  width: 60px;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
}

.margin-input span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.preset-buttons {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.crop-box-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.box-dimensions {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
}

.crop-preview {
  display: flex;
  flex-direction: column;
}

.crop-preview .preview-container {
  position: relative;
  display: inline-block;
  margin: 0 auto;
  background: white;
  box-shadow: var(--shadow-lg);
}

.crop-preview .preview-container canvas {
  display: block;
}

.crop-overlay {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

.crop-box {
  position: absolute;
  border: 2px dashed var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  pointer-events: none;
}

/* ============================================
   Tools Menu (Hamburger)
   ============================================ */
.tools-menu-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tools-menu-toggle:hover {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tools-menu-toggle.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.tools-menu-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.tools-menu-toggle.active svg {
  transform: rotate(90deg);
}

/* Tools Menu Panel */
.tools-menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  height: 100vh;
  background: var(--color-bg-card);
  border-right: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.tools-menu-panel.active {
  transform: translateX(0);
}

.tools-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg-card);
  z-index: 10;
}

.tools-menu-header h3 {
  margin: 0;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.tools-menu-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tools-menu-close:hover {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.1);
}

/* Tools Menu Categories */
.tools-menu-category {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.tools-menu-category:last-child {
  border-bottom: none;
}

.tools-menu-category h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.tools-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.tools-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tools-menu-item:hover {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  text-decoration: none;
}

.tools-menu-item.active {
  background: var(--color-primary);
  color: white;
}

.tools-menu-item-icon {
  font-size: 1.25rem;
  width: 28px;
  text-align: center;
}

.tools-menu-item-text {
  font-weight: 500;
}

/* Tools Menu Overlay */
.tools-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.tools-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .tools-menu-panel {
    width: 280px;
  }
  
  .tools-menu-toggle span {
    display: none;
  }
  
  .tools-menu-toggle {
    padding: var(--space-sm);
  }
}