@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Orbitron:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Brand Gradient: Cyan → Sky → Indigo */
  --gradient-primary: linear-gradient(135deg, #06b6d4 0%, #0ea5e9 50%, #6366f1 100%);
  --gradient-neon: linear-gradient(135deg, #22d3ee 0%, #3b82f6 50%, #8b5cf6 100%);
  
  /* Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: rgba(148, 163, 184, 0.2);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.12);
  --shadow-neon: 0 0 20px rgba(6, 182, 212, 0.3);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  
  /* Accent Colors */
  --accent-cyan: #06b6d4;
  --accent-sky: #0ea5e9;
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  
  /* AI Glow */
  --ai-glow: 0 0 30px rgba(99, 102, 241, 0.5), 0 0 60px rgba(99, 102, 241, 0.3);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: rgba(148, 163, 184, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-neon: 0 0 30px rgba(34, 211, 238, 0.5);
  
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(148, 163, 184, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
  font-weight: 800;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.orbitron {
  font-family: 'Orbitron', monospace;
  letter-spacing: 0.05em;
}

/* Glass Morphism Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: var(--space-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-neon);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-neon);
}

.glass-card:hover::before {
  opacity: 1;
}

/* Neon Border */
.neon-border {
  position: relative;
  border: 2px solid transparent;
  background: var(--bg-secondary);
  background-clip: padding-box;
}

.neon-border::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-neon);
  border-radius: inherit;
  z-index: -1;
  opacity: 0.6;
  filter: blur(8px);
  animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
  0%, 100% {
    opacity: 0.6;
    filter: blur(8px);
  }
  50% {
    opacity: 1;
    filter: blur(12px);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

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

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

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

.btn-ghost:hover {
  background: var(--glass-bg);
  border-color: var(--accent-indigo);
  color: var(--accent-indigo);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* KPI Card */
.kpi-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
}

.kpi-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-neon);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.kpi-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-lg), var(--shadow-neon);
}

.kpi-card:hover::after {
  opacity: 0.05;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-neon);
}

.kpi-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: 'Orbitron', monospace;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.kpi-change {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.kpi-change.positive {
  color: var(--accent-success);
}

.kpi-change.negative {
  color: var(--accent-danger);
}

/* Input Fields */
.input-group {
  margin-bottom: var(--space-lg);
}

.input-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-field {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  background: var(--bg-secondary);
}

.input-field::placeholder {
  color: var(--text-muted);
}

select.input-field {
  cursor: pointer;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-info {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-hot {
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  color: white;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
  animation: badgePulse 2s ease-in-out infinite;
}

.badge-warm {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
}

.badge-cold {
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-indigo);
}

@keyframes badgePulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.7);
  }
}

/* AI Glow Effect */
.ai-glow {
  position: relative;
  animation: aiGlow 3s ease-in-out infinite;
}

@keyframes aiGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: var(--ai-glow);
  }
}

/* Loading Animation */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-indigo);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Fade In Animation */
.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

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

/* Slide In Animations */
.slide-in-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out forwards;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg), var(--shadow-neon);
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

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

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: 0.5rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 100;
}

.tooltip:hover::after {
  opacity: 1;
}

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

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

/* Responsive Grid */
@media (max-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

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

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

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

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

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

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.p-lg {
  padding: var(--space-lg);
}

.hidden {
  display: none;
}

.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-neon);
}