:root {
  --primary: #0B6BCB;
  --primary-dark: #0854A0;
  --primary-light: #4A9EE5;
  --secondary: #10B981;
  --accent: #F59E0B;
  --bg-body: #f8fafc;
  --surface: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --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);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}
.dark {
  --bg-body: #0f172a;
  --surface: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  overflow-x: hidden;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.animate-fade-up { animation: fadeInUp 0.5s ease-out both; }
.animate-fade-in { animation: fadeIn 0.3s ease-out both; }
.animate-slide-right { animation: slideInRight 0.4s ease-out both; }
.animate-pulse-ring::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  animation: pulse-ring 1.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

.nav-link {
  position: relative;
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: transform 0.2s;
}
.nav-link:hover::after,
.nav-link.active::after { transform: translateX(-50%) scaleX(1); }

.dropdown-enter {
  animation: fadeIn 0.2s ease-out;
}

.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.dark .glass {
  background: rgba(30, 41, 59, 0.8);
}

.card-hover {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.gradient-border {
  position: relative;
}
.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

@media (max-width: 639px) {
  .card-list > * + * { border-top: 1px solid var(--border); }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
}

@media (max-width: 767px) {
  .touch-friendly { min-height: 44px; }
  .touch-friendly a, .touch-friendly button { min-height: 44px; display: flex; align-items: center; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.25rem !important; }
  h2 { font-size: 1.125rem !important; }
  .text-responsive { font-size: 0.875rem; }
}

@media (max-width: 767px) {
  .content-area { padding: 1rem !important; }
  .header-area { padding-left: 1rem !important; padding-right: 1rem !important; }
}

.custom-scrollbar::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}
.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

@media (max-width: 1023px) {
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }
  .sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }
}