:root { 
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Bold vibrant colors - blue theme */
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --primary-light: #DBEAFE;
  --primary-ultra-light: #EFF6FF;
  --primary-gradient: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  
  /* Vibrant cyan accent */
  --accent: #06B6D4;
  --accent-dark: #0891B2;
  --accent-light: #CFFAFE;
  --accent-gradient: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
  
  --income: #10b981;
  --income-dark: #059669;
  --income-light: #D1FAE5;
  --income-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  
  --expense: #EF4444;
  --expense-dark: #DC2626;
  --expense-light: #FEE2E2;
  --expense-gradient: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
  
  --tax: #F59E0B;
  --tax-dark: #D97706;
  --tax-light: #FEF3C7;
  --tax-gradient: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  
  --success: #10b981;
  --danger: #EF4444;
  --warning: #F59E0B;
  --info: #3B82F6;
  
  /* Refined neutral palette */
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  
  /* Bold dramatic shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
  --shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.12);
  --shadow-md: 0 8px 16px -2px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 12px 28px -6px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 24px 48px -8px rgba(0, 0, 0, 0.25);
  
  /* Colored shadows for extra pop */
  --shadow-primary: 0 8px 24px -4px rgba(59, 130, 246, 0.3);
  --shadow-accent: 0 8px 24px -4px rgba(6, 182, 212, 0.3);
  
  /* Refined radius */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  
  /* Spacing system (4pt grid) */
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body { 
  background: var(--gray-50);
  color: var(--gray-900); 
  line-height: 1.6; 
  min-height: 100vh;
  font-size: 15px;
}

header { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  padding: var(--space-lg) var(--space-xl); 
  background: white;
  border-bottom: 1px solid var(--gray-200); 
  box-shadow: var(--shadow-xs);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

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

header .logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  text-decoration: none;
}

header h1 { 
  font-size: 24px; 
  font-weight: 700; 
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

/* Mobile menu toggle button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gray-700);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.mobile-menu-toggle:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Desktop navigation */
.desktop-nav { 
  display: flex; 
  gap: 4px;
  align-items: center;
}

.desktop-nav a { 
  color: var(--gray-600); 
  text-decoration: none; 
  font-weight: 500; 
  font-size: 14px;
  transition: var(--transition);
  padding: 8px 14px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 6px;
}

.desktop-nav a svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.desktop-nav a:hover { 
  color: var(--gray-900); 
  background: var(--gray-100);
}

.desktop-nav a.active {
  color: var(--primary);
  background: var(--primary-ultra-light);
  font-weight: 600;
}

.desktop-nav a.active svg {
  color: var(--primary);
}

/* Profile dropdown */
.profile-dropdown {
  position: relative;
}

.profile-button {
  background: none;
  border: none;
  color: var(--gray-600);
  cursor: pointer;
  padding: 8px 14px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  transition: var(--transition);
}

.profile-button:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.profile-button svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.profile-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 200;
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.profile-dropdown:hover .profile-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.profile-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: var(--transition);
  border-bottom: 1px solid var(--gray-100);
}

.profile-dropdown-menu a:last-child {
  border-bottom: none;
}

.profile-dropdown-menu a:hover {
  background: var(--gray-50);
  color: var(--gray-900);
}

.profile-dropdown-menu a svg {
  width: 18px;
  height: 18px;
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: white;
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: none;
}

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

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-lg);
  border-bottom: 2px solid var(--gray-200);
  background: var(--gray-50);
}

.mobile-menu-close {
  background: none;
  border: none;
  color: var(--gray-600);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.mobile-menu-close:hover {
  background: var(--gray-200);
  color: var(--gray-900);
}

.mobile-menu-close svg {
  width: 24px;
  height: 24px;
}

.mobile-menu-content {
  padding: var(--space-md) 0;
}

.mobile-menu-section {
  margin-bottom: var(--space-lg);
}

.mobile-menu-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
}

.mobile-menu-section-title svg {
  width: 14px;
  height: 14px;
}

.mobile-menu-section a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px var(--space-lg);
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.mobile-menu-section a:hover {
  background: var(--gray-50);
  color: var(--gray-900);
  border-left-color: var(--gray-300);
}

.mobile-menu-section a.active {
  background: var(--primary-ultra-light);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.mobile-menu-section a svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.mobile-menu-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: none;
}

.mobile-menu-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Bottom Tab Bar (Mobile Navigation) */
.bottom-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-top: 1px solid var(--gray-200);
  display: none; /* Hidden on desktop */
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
  padding: 8px 0 8px 0;
  z-index: 1000;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  /* Account for safe area on iOS */
  padding-bottom: max(8px, env(safe-area-inset-bottom));
}

.bottom-tab-bar .tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 12px;
  text-decoration: none;
  color: var(--gray-500);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 8px;
  min-width: 60px;
  flex: 1;
  max-width: 80px;
}

.bottom-tab-bar .tab-item svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.bottom-tab-bar .tab-item span {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.bottom-tab-bar .tab-item:active {
  transform: scale(0.95);
}

.bottom-tab-bar .tab-item.active {
  color: var(--primary);
  background: var(--primary-ultra-light);
}

.bottom-tab-bar .tab-item.active svg {
  stroke-width: 2.5;
}

.bottom-tab-bar .tab-item.active span {
  font-weight: 700;
}

/* Responsive breakpoint */
@media (max-width: 768px) {
  /* Remove sticky header on mobile */
  header {
    position: relative;
  }
  
  /* Show hamburger menu on mobile */
  .mobile-menu-toggle {
    display: block;
  }
  
  .desktop-nav {
    display: none;
  }
  
  /* Show slide-out menu and backdrop on mobile */
  .mobile-menu,
  .mobile-menu-backdrop {
    display: block;
  }
  
  /* Show bottom tab bar on mobile */
  .bottom-tab-bar {
    display: flex;
  }
  
  /* Add padding to main content to account for bottom tab bar */
  main {
    padding-bottom: 80px; /* Extra space for bottom tab bar */
  }
  
  header h1 {
    font-size: 20px;
  }
  
  header .logo img {
    height: 48px;
  }
}

main { 
  padding: var(--space-xl) var(--space-lg) 64px; 
  max-width: 1400px; 
  margin: 0 auto; 
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.flash > div { 
  background: var(--income-light); 
  border-left: 4px solid var(--success); 
  padding: var(--space-md) var(--space-lg); 
  margin: var(--space-lg) 0; 
  border-radius: var(--radius);
  color: #065f46; 
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  animation: slideIn 0.3s ease-out;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.flash > div::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  font-weight: bold;
  font-size: 14px;
}

.filters form, .add form, .auth form { 
  background: white; 
  padding: var(--space-lg); 
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-xl);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.filters form:hover, .add form:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
}

.add h2, .table h2, .summary h2, .bycat h2, .auth h2 { 
  margin: 0 0 var(--space-lg) 0; 
  font-size: 20px; 
  font-weight: 700; 
  color: var(--gray-900);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  letter-spacing: -0.01em;
}

.grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); 
  gap: var(--space-md); 
}

.grid.simple { 
  grid-template-columns: repeat(4, 1fr); 
}

.grid .full { 
  grid-column: 1 / -1; 
}

label { 
  display: block; 
  margin-bottom: var(--space-md); 
  font-weight: 600; 
  color: var(--gray-900); 
  font-size: 14px; 
}

label small { 
  font-weight: 400; 
  color: var(--gray-500); 
  font-size: 13px;
}

label .required {
  color: var(--danger);
  margin-left: 2px;
}

input, select, textarea { 
  width: 100%; 
  padding: 10px 14px; 
  border: 1px solid var(--gray-300); 
  border-radius: var(--radius);
  font-size: 15px; 
  margin-top: 6px;
  transition: var(--transition);
  font-family: inherit;
  background: white;
  color: var(--gray-900);
}

input:hover, select:hover, textarea:hover {
  border-color: var(--gray-400);
}

input:focus, select:focus, textarea:focus {
  outline: none; 
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

input[type="date"] {
  font-family: inherit;
}

button { 
  width: 100%; 
  padding: 11px 20px; 
  border: none; 
  border-radius: var(--radius);
  font-size: 15px; 
  font-weight: 600; 
  cursor: pointer;
  background: var(--primary); 
  color: white;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--shadow-xs);
}

button:hover { 
  background: var(--primary-dark); 
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

button:active { 
  transform: translateY(0); 
  box-shadow: var(--shadow-xs);
}

button.secondary { 
  background: white; 
  color: var(--gray-700);
  border: 2px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
}

button.secondary:hover { 
  background: var(--gray-50); 
  border-color: var(--primary);
  color: var(--primary);
}

button.danger { 
  background: var(--danger); 
}

button.danger:hover { 
  background: var(--expense-dark); 
}

button.small {
  padding: 6px 14px;
  font-size: 13px;
  width: auto;
  font-weight: 600;
}

button.primary {
  background: var(--primary-gradient);
  box-shadow: var(--shadow-primary);
}

button.primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
}

.table, .bycat { 
  background: white; 
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--gray-200);
}

.table h2, .bycat h2 {
  padding: var(--space-lg) var(--space-xl);
  margin: 0;
  border-bottom: 1px solid var(--gray-200);
  background: white;
}

.table-wrapper {
  overflow-x: auto;
}

.table table, .bycat table { 
  width: 100%; 
  border-collapse: collapse; 
}

.table th, .table td, .bycat th, .bycat td { 
  padding: var(--space-md) var(--space-lg); 
  border-bottom: 2px solid var(--gray-100); 
  font-size: 14px; 
  vertical-align: middle; 
  text-align: left;
}

.table thead th, .bycat thead th { 
  background: var(--gray-100); 
  font-weight: 700; 
  color: var(--gray-900);
  position: sticky;
  top: 0;
  border-bottom: 3px solid var(--primary) !important;
  z-index: 10;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.8px;
}

.table tbody tr, .bycat tbody tr {
  transition: var(--transition);
}

.table tbody tr:hover, .bycat tbody tr:hover { 
  background: var(--primary-ultra-light);
}

.table td { 
  color: var(--gray-600); 
}

.table tbody tr:last-child td, .bycat tbody tr:last-child td {
  border-bottom: none;
}

.table .actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.table .actions button {
  width: auto;
  padding: 6px 12px;
  font-size: 13px;
}

/* Modern Card System */
.cards { 
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg); 
  margin-bottom: var(--space-xl); 
}

.card { 
  background: white; 
  padding: var(--space-xl); 
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--gray-200);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: scaleIn 0.3s ease-out;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  transition: var(--transition);
}

.card.profit::before {
  background: var(--primary-gradient);
}

.card.income::before {
  background: var(--income-gradient);
}

.card.expense::before {
  background: var(--expense-gradient);
}

.card.tax::before {
  background: var(--tax-gradient);
}

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

.card:hover::before {
  width: 6px;
}

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

/* Icon Badge - Circular with background */
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  margin-bottom: var(--space-sm);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.card.profit .card-icon {
  background: var(--primary-ultra-light);
  color: var(--primary-dark);
}

.card.income .card-icon {
  background: var(--income-light);
  color: var(--income-dark);
}

.card.expense .card-icon {
  background: var(--expense-light);
  color: var(--expense-dark);
}

.card.tax .card-icon {
  background: var(--tax-light);
  color: var(--tax-dark);
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.big { 
  font-size: 48px; 
  font-weight: 800; 
  margin: 8px 0; 
  line-height: 1;
  letter-spacing: -0.03em;
}

.card.income .big {
  color: var(--income-dark);
}

.card.expense .big {
  color: var(--expense-dark);
}

.card.profit .big {
  color: var(--primary-dark);
}

.card.tax .big {
  color: var(--tax-dark);
}

.card-subtitle {
  font-size: 14px;
  color: var(--gray-500);
  margin-top: 8px;
  font-weight: 400;
}

.trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  margin-top: 8px;
}

.trend.up {
  color: var(--income-dark);
  background: var(--income-light);
}

.trend.down {
  color: var(--expense-dark);
  background: var(--expense-light);
}

.optional-fields { 
  display: none; 
  margin-top: var(--space-lg); 
  padding-top: var(--space-lg); 
  border-top: 2px dashed var(--gray-200);
}

.optional-fields.show { 
  display: grid; 
  animation: slideIn 0.3s ease-out;
}

.toggle-optional { 
  background: white; 
  color: var(--primary); 
  width: auto; 
  padding: 10px 18px; 
  margin-top: 12px;
  border: 1px solid var(--primary);
  font-weight: 600;
}

.toggle-optional:hover { 
  background: var(--primary-ultra-light); 
}

.quick-add { 
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: var(--space-xl); 
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-lg);
  border: none;
  position: relative;
  overflow: hidden;
}

.quick-add::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: shimmer 3s infinite;
  pointer-events: none;
}

@keyframes shimmer {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20%, -20%); }
}

.quick-add h2 { 
  color: white; 
  margin-bottom: var(--space-lg); 
}

.quick-add label { 
  color: rgba(255,255,255,0.95); 
}

.quick-add input, .quick-add select { 
  background: rgba(255,255,255,0.95); 
  border: 1px solid rgba(255,255,255,0.3);
}

.quick-add input:focus, .quick-add select:focus {
  background: white;
  border-color: white;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}

.quick-add button {
  background: white;
  color: var(--primary);
  font-weight: 700;
}

.quick-add button:hover {
  background: var(--gray-50);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--gray-200);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--tax) 0%, var(--tax-dark) 100%);
  border-radius: 999px;
  transition: width 0.5s ease;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge.income {
  background: var(--income-light);
  color: var(--income-dark);
}

.badge.expense {
  background: var(--expense-light);
  color: var(--expense-dark);
}

.badge.tax {
  background: var(--tax-light);
  color: var(--tax-dark);
}

.badge.info {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.recurring-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
  font-size: 14px;
  background: var(--info);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  cursor: help;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.empty-state {
  text-align: center;
  padding: 64px 32px;
  color: var(--gray-500);
}

.empty-state-icon {
  font-size: 64px;
  margin-bottom: var(--space-md);
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 20px;
  color: var(--gray-700);
  margin-bottom: 8px;
  font-weight: 600;
}

.empty-state p {
  font-size: 15px;
  margin-bottom: var(--space-lg);
}

.empty-state button {
  width: auto;
  padding: 12px 32px;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  font-size: 16px;
  color: var(--gray-600);
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-300);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 12px;
}

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

.tax-due {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
}

.tax-due.upcoming {
  background: var(--warning);
  color: white;
}

.tax-due.overdue {
  background: var(--danger);
  color: white;
}

footer { 
  padding: var(--space-2xl) var(--space-lg) var(--space-xl); 
  color: var(--gray-500); 
  text-align: center; 
  font-size: 14px;
  border-top: 1px solid var(--gray-200);
  background: white;
  margin-top: var(--space-2xl);
}

footer p {
  margin: 8px 0;
}

/* Pagination Styles */
.pagination-container {
  margin-top: 24px;
  padding: 20px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: var(--radius);
  border: 2px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.08);
}

.pagination-info {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: -0.01em;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: white;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
  letter-spacing: -0.01em;
}

.pagination-btn:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.pagination-btn.disabled {
  color: var(--gray-400);
  border-color: var(--gray-300);
  background: var(--gray-100);
  cursor: not-allowed;
  box-shadow: none;
}

.pagination-btn.disabled:hover {
  transform: none;
  background: var(--gray-100);
  box-shadow: none;
}

.pagination-pages {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  padding: 0 12px;
  letter-spacing: -0.01em;
}

@media (max-width: 1024px) { 
  .grid.simple { 
    grid-template-columns: repeat(2, 1fr); 
  }
  
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) { 
  header { 
    padding: var(--space-md) var(--space-lg); 
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  header h1 { 
    font-size: 20px; 
  }
  
  nav { 
    width: 100%;
    justify-content: space-around;
    flex-wrap: wrap;
  }
  
  nav a { 
    font-size: 14px; 
    padding: 6px 12px;
  }
  
  main {
    padding: var(--space-lg) var(--space-md) var(--space-2xl);
  }
  
  .grid { 
    grid-template-columns: 1fr; 
  }
  
  .grid.simple { 
    grid-template-columns: 1fr; 
  }
  
  .cards {
    grid-template-columns: 1fr;
  }
  
  .table th, .table td, .bycat th, .bycat td {
    padding: 10px 12px;
    font-size: 13px;
  }
  
  .pagination-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .pagination-info {
    text-align: center;
  }
  
  .pagination-controls {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .card {
    padding: var(--space-lg);
  }
  
  .big {
    font-size: 32px;
  }
  
  .filters form, .add form {
    padding: var(--space-lg);
  }
  
  .card-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  
  .pagination-btn {
    padding: 8px 12px;
    font-size: 13px;
  }
  
  .pagination-pages {
    font-size: 13px;
  }
}