:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --secondary: #10b981;
  --accent: #f59e0b;
  --background: #0f172a;
  --surface: #1e293b;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --subnav-bg: rgba(15, 23, 42, 0.8);
}

:root.light-mode {
  --background: #f8fafc;
  --surface: #ffffff;
  --text: #1e293b;
  --text-muted: #475569;
  --border: #e2e8f0;
  --glass: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  --subnav-bg: rgba(248, 250, 252, 0.8);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--background);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

button, .glass-card, nav {
  user-select: none;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition);
}

.glass-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.premium-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  transition: var(--transition);
}

.premium-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
  outline: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.text-gradient {
  background: linear-gradient(135deg, #818cf8, #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes blob-in {
  from { width: 0; opacity: 0; transform: translateX(-50%) scaleX(0); }
  to { width: 100%; opacity: 1; transform: translateX(-50%) scaleX(1); }
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(99, 102, 241, 0); }
  100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulse-glow 2s infinite;
}

.shimmer-text {
  background: linear-gradient(90deg, rgba(255,255,255,0.1) 25%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0.1) 75%);
  background-size: 200% 100%;
  animation: shimmer 3s infinite linear;
  -webkit-background-clip: text;
  background-clip: text;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.mobile-only {
  display: block;
}

@media (min-width: 1024px) {
  .mobile-only {
    display: none;
  }
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

.desktop-only {
  display: none;
}

@media (min-width: 1024px) {
  .desktop-only {
    display: flex;
  }
}

/* Responsive Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

.responsive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .responsive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .responsive-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 2fr 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 1.5rem !important; }
  h2 { font-size: 1.25rem !important; }
  .glass-card { padding: 1rem; }
  main { padding: 1rem 0.5rem !important; }
  .btn-primary { padding: 0.875rem 1.25rem; width: 100%; }
}

/* PWA Utilities */
.table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 1rem;
  border-radius: var(--radius);
}

.scroll-hide::-webkit-scrollbar {
  display: none;
}

.touch-target {
  min-height: 44px;
  min-width: 44px;
}

.stack-mobile {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  .stack-mobile {
    flex-direction: row;
    align-items: center;
  }
}

.logo-text {
  white-space: nowrap;
  letter-spacing: -0.5px;
}

/* Spinner */
.spinner-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--background);
  z-index: 9999;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-left-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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