/* ================================================
   Arab R&D - Professional Design System
   Beautiful UI/UX with Perfect Dark/Light Mode
   ================================================ */

/* ================================================
   CSS VARIABLES - DESIGN TOKENS  
   ================================================ */
:root {
  /* Light Theme Colors */
  --bg-page: #fafbfc;
  --bg-surface: #ffffff;
  --bg-elevated: #f8f9fa;
  --bg-muted: #f1f3f4;
  --bg-accent: #e8f4fd;
  
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-light: #a0aec0;
  
  --border-primary: #e2e8f0;
  --border-secondary: #edf2f7;
  --border-muted: #f7fafc;
  
  /* Brand Colors */
  --brand-50: #eff6ff;
  --brand-100: #dbeafe;
  --brand-500: #3b82f6;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  
  --accent-50: #fef3c7;
  --accent-500: #f59e0b;
  --accent-600: #d97706;
  
  --success-50: #ecfdf5;
  --success-500: #10b981;
  --success-600: #059669;
  
  --error-50: #fef2f2;
  --error-500: #ef4444;
  --error-600: #dc2626;
  
  /* Typography */
  --font-family: 'Noto Sans Arabic', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Spacing Scale */
  --spacing-px: 1px;
  --spacing-0: 0;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Dark Theme - Beautiful & Readable */
html.dark {
  --bg-page: #0d1117;
  --bg-surface: #161b22;
  --bg-elevated: #21262d;
  --bg-muted: #30363d;
  --bg-accent: #0d419d;
  
  --text-primary: #f0f6fc;
  --text-secondary: #b1bac4;
  --text-muted: #8b949e;
  --text-light: #6e7681;
  
  --border-primary: #30363d;
  --border-secondary: #21262d;
  --border-muted: #161b22;
  
  /* Adjust brand colors for dark mode */
  --brand-500: #58a6ff;
  --brand-600: #388bfd;
  --brand-700: #1f6feb;
  
  --accent-500: #f7931e;
  --accent-600: #e1841a;
  
  --success-500: #3fb950;
  --success-600: #238636;
  
  --error-500: #f85149;
  --error-600: #da3633;
}

/* ================================================
   BASE STYLES
   ================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-page);
  direction: rtl;
  transition: color var(--transition-normal), background-color var(--transition-normal);
  min-height: 100vh;
}

/* ================================================
   LAYOUT SYSTEM
   ================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.container-wide {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.section {
  padding: var(--spacing-12) 0;
}

.section-sm { padding: var(--spacing-8) 0; }
.section-lg { padding: var(--spacing-16) 0; }

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

/* ================================================
   HEADER & NAVIGATION
   ================================================ */
.header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px) saturate(180%);
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

html.dark .header {
  background: rgba(13, 17, 23, 0.98);
  border-bottom-color: var(--border-secondary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  padding: var(--spacing-3) 0;
  min-height: 60px;
}

/* Logo - AGGRESSIVE SIZE CONTROL */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: translateY(-1px);
}

.logo img,
img[src*="arabrnd-logo"],
img[alt*="Arab R&D"],
header img {
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  min-height: 28px !important;
  max-width: 28px !important;
  max-height: 28px !important;
  border-radius: var(--radius-md) !important;
  object-fit: contain !important;
  display: block !important;
  box-shadow: var(--shadow-xs);
}

.logo-text {
  display: flex;
  align-items: center;
}

.logo-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--brand-600);
  line-height: 1;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* Header Navigation */
.header-nav {
  display: none;
  align-items: center;
  gap: var(--spacing-2);
  flex: 1;
  justify-content: center;
}

@media (min-width: 768px) {
  .header-nav {
    display: flex;
  }
}

.header-nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}

.header-nav-link:hover {
  color: var(--brand-600);
  background: var(--bg-elevated);
}

.header-nav-link.active {
  color: var(--brand-600);
  background: var(--brand-50);
  font-weight: 600;
}

html.dark .header-nav-link.active {
  background: rgba(88, 166, 255, 0.12);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.1rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-muted);
  transform: rotate(180deg);
  border-color: var(--brand-300);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:active {
  transform: rotate(180deg) scale(0.95);
}

/* Navigation */
.nav {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-secondary);
  box-shadow: var(--shadow-xs);
}

.nav-menu {
  display: flex;
  list-style: none;
  justify-content: center;
  gap: var(--spacing-1);
  padding: var(--spacing-3) 0;
  margin: 0;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

.nav-link:hover {
  color: var(--brand-600);
  background: var(--bg-accent);
}

.nav-link.active {
  color: var(--brand-600);
  background: var(--brand-50);
  font-weight: 600;
}

html.dark .nav-link.active {
  color: var(--brand-400);
  background: var(--bg-accent);
}

/* ================================================
   CARD SYSTEM
   ================================================ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--brand-200);
}

html.dark .card:hover {
  border-color: var(--brand-600);
  box-shadow: var(--shadow-lg);
}

.card-compact {
  padding: var(--spacing-4);
}

.card-spacious {
  padding: var(--spacing-8);
}

/* ================================================
   PAPER COMPONENTS
   ================================================ */
.paper-card {
  transition: all var(--transition-normal);
  border: 1px solid var(--border-secondary);
  margin-bottom: var(--spacing-6);
}

.paper-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--brand-300);
}

html.dark .paper-card {
  background: var(--bg-elevated);
  border-color: var(--border-primary);
}

html.dark .paper-card:hover {
  border-color: var(--brand-600);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

.paper-title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--spacing-3);
}

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

.paper-title a:hover {
  color: var(--brand-600);
}

.paper-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.paper-meta > div {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.paper-summary {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-5);
  font-size: 0.95rem;
}

.paper-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.paper-category {
  background: var(--bg-muted);
  color: var(--text-muted);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border-secondary);
}

html.dark .paper-category {
  background: var(--bg-muted);
  color: var(--text-light);
  border-color: var(--border-primary);
}

/* ================================================
   BUTTONS & INTERACTIONS
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 38px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-600);
  color: white;
  border-color: var(--brand-600);
}

.btn-primary:hover {
  background: var(--brand-700);
  border-color: var(--brand-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-secondary);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background: var(--accent-500);
  color: white;
  border-color: var(--accent-500);
}

.btn-accent:hover {
  background: var(--accent-600);
  border-color: var(--accent-600);
}

.btn-sm {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: 0.8rem;
  min-height: 32px;
}

.btn-lg {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: 1rem;
  min-height: 44px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Default button styling */
.btn:not(.btn-primary):not(.btn-secondary):not(.btn-accent) {
  background: var(--brand-600);
  color: white;
  border-color: var(--brand-600);
}

.btn:not(.btn-primary):not(.btn-secondary):not(.btn-accent):hover {
  background: var(--brand-700);
  border-color: var(--brand-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ================================================
   FORM COMPONENTS
   ================================================ */
.search-section {
  background: linear-gradient(135deg, var(--bg-accent) 0%, var(--bg-elevated) 100%);
  border-radius: var(--radius-3xl);
  padding: var(--spacing-12);
  text-align: center;
  margin-bottom: var(--spacing-10);
  border: 1px solid var(--border-secondary);
}

html.dark .search-section {
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-muted) 100%);
}

.search-box {
  position: relative;
  max-width: 560px;
  margin: var(--spacing-6) auto 0;
}

.search-input {
  width: 100%;
  padding: var(--spacing-4);
  padding-right: 50px;
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-xl);
  font-size: 1rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15), var(--shadow-md);
}

html.dark .search-input {
  background: var(--bg-elevated);
  border-color: var(--border-primary);
}

html.dark .search-input:focus {
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.25), var(--shadow-lg);
}

.search-btn {
  position: absolute;
  right: var(--spacing-2);
  top: 50%;
  transform: translateY(-50%);
  background: var(--brand-600);
  color: white;
  border: none;
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.1rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn:hover {
  background: var(--brand-700);
  transform: translateY(-50%) scale(1.05);
}

/* ================================================
   STATISTICS & METRICS
   ================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin: var(--spacing-8) 0;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-500), var(--accent-500));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-200);
}

html.dark .stat-card:hover {
  border-color: var(--brand-600);
}

.stat-number {
  display: block;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--brand-600);
  margin-bottom: var(--spacing-2);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

/* ================================================
   BADGES & INDICATORS
   ================================================ */
.translation-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
}

.translation-badge.available {
  background: var(--success-50);
  color: var(--success-600);
  border: 1px solid var(--success-200);
}

html.dark .translation-badge.available {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-500);
  border-color: rgba(16, 185, 129, 0.3);
}

.translation-badge.unavailable {
  background: var(--accent-50);
  color: var(--accent-600);
  border: 1px solid var(--accent-200);
}

html.dark .translation-badge.unavailable {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-500);
  border-color: rgba(245, 158, 11, 0.3);
}

/* ================================================
   LOADING & STATES
   ================================================ */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-12);
  text-align: center;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-primary);
  border-top: 3px solid var(--brand-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-4);
}

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

.empty-state {
  text-align: center;
  padding: var(--spacing-12);
  color: var(--text-muted);
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-3);
  color: var(--text-secondary);
}

.empty-state p {
  margin-bottom: var(--spacing-5);
  line-height: 1.6;
}

/* ================================================
   TYPOGRAPHY
   ================================================ */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 2.5rem; margin-bottom: var(--spacing-4); }
h2 { font-size: 2rem; margin-bottom: var(--spacing-4); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-3); }
h4 { font-size: 1.25rem; margin-bottom: var(--spacing-3); }

p {
  margin-bottom: var(--spacing-4);
  line-height: 1.6;
}

.text-xl { font-size: 1.25rem; }
.text-lg { font-size: 1.125rem; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

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

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-secondary);
  padding: var(--spacing-10) 0;
  margin-top: var(--spacing-16);
  text-align: center;
}

.footer p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
}

.footer .text-sm {
  color: var(--text-muted);
}

/* ================================================
   ANIMATIONS & EFFECTS
   ================================================ */
.fade-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in {
  animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ================================================
   UTILITY CLASSES
   ================================================ */
.hidden { display: none !important; }
.invisible { visibility: hidden; }
.sr-only { 
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Spacing */
.m-0 { margin: 0; }
.p-0 { padding: 0; }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }

/* ================================================
   RESPONSIVE DESIGN
   ================================================ */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-3);
  }
  
  .header-content {
    flex-direction: row;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
  }
  
  .logo {
    flex: 1;
  }
  
  .logo-text h1 {
    font-size: 1.1rem;
  }
  
  .logo-text p {
    font-size: 0.75rem;
  }
  
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-1);
  }
  
  .nav-link {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: 0.875rem;
  }
  
  .search-section {
    padding: var(--spacing-8);
  }
  
  .search-section h1 {
    font-size: 2rem;
  }
  
  .search-section h2 {
    font-size: 1.25rem;
  }
  
  .search-input {
    font-size: 0.95rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
  }
  
  .stat-number {
    font-size: 1.75rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .paper-meta {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .paper-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .search-section {
    padding: var(--spacing-6);
    margin: var(--spacing-4) 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: var(--spacing-6) 0;
  }
}

/* ================================================
   ACCESSIBILITY
   ================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

*:focus {
  outline: 2px solid var(--brand-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ================================================
   PRINT STYLES
   ================================================ */
@media print {
  .header,
  .nav,
  .footer,
  .theme-toggle,
  .search-section,
  .btn {
    display: none;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
    margin-bottom: var(--spacing-4);
  }
  
  .paper-title a {
    color: #000 !important;
    text-decoration: none;
  }
}