/* 
 * Platform Architecture Section - Isolated Styles
 * Scoped to .platform-architecture-section to avoid conflicts
 */

.platform-architecture-section {
  --pa-green-primary: #00E676;
  --pa-green-dark: #00C853;
  --pa-green-light: #69F0AE;
  --pa-green-glow: rgba(0, 230, 118, 0.1);
  --pa-green-glow-strong: rgba(0, 230, 118, 0.2);
  --pa-black: #0B0F0E;
  --pa-black-light: #1A1F1E;
  --pa-gray-900: #111827;
  --pa-gray-800: #1F2937;
  --pa-gray-700: #374151;
  --pa-gray-600: #4B5563;
  --pa-gray-500: #6B7280;
  --pa-gray-400: #9CA3AF;
  --pa-gray-300: #D1D5DB;
  --pa-gray-200: #E5E7EB;
  --pa-gray-100: #F3F4F6;
  --pa-white: #FFFFFF;
  
  /* Architecture specific variables */
  --pa-flow-line-color: var(--pa-green-primary);
  --pa-card-bg: linear-gradient(135deg, rgba(13,19,17,0.9), rgba(13,19,17,0.7));
  --pa-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  --pa-card-shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.4);
  --pa-border-radius: 16px;
  --pa-border-radius-lg: 24px;
  --pa-transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --pa-animation-delay: 0.1s;
}

/* Reset within section */
.platform-architecture-section * {
  box-sizing: border-box;
}

/* Main container */
.platform-architecture-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--pa-black) 0%, var(--pa-black-light) 100%);
  position: relative;
  overflow: hidden;
}

.platform-architecture-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, var(--pa-green-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--pa-green-glow) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(0, 230, 118, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.platform-architecture-section .container {
  position: relative;
  z-index: 2;
}

/* Section header */
.pa-header {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.pa-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--pa-white);
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--pa-white) 0%, var(--pa-green-light) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pa-header p {
  font-size: 1.25rem;
  color: var(--pa-gray-300);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Architecture flow container */
.pa-flow-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* Data Sources Row */
.pa-data-sources {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 48px;
}

/* Processing Row */
.pa-processing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

/* Output Row */
.pa-outputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

/* Architecture cards */
.pa-card {
  background: linear-gradient(135deg, rgba(13,19,17,0.9), rgba(13,19,17,0.7));
  border: 1px solid var(--pa-gray-700);
  border-radius: var(--pa-border-radius);
  padding: 32px;
  text-align: center;
  position: relative;
  transition: var(--pa-transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.pa-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--pa-green-primary), var(--pa-green-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.pa-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 230, 118, 0.1);
  border-color: rgba(0, 230, 118, 0.4);
}

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

/* Card icons */
.pa-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--pa-green-primary), var(--pa-green-light));
  border-radius: var(--pa-border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: var(--pa-transition);
}

.pa-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--pa-green-glow-strong) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pa-card:hover .pa-icon {
  transform: scale(1.1);
  box-shadow: 0 20px 40px var(--pa-green-glow-strong);
}

.pa-card:hover .pa-icon::before {
  opacity: 1;
}

.pa-icon i {
  font-size: 36px;
  color: var(--pa-black);
  z-index: 2;
  position: relative;
  transition: var(--pa-transition);
}

.pa-card:hover .pa-icon i {
  transform: scale(1.1);
}

/* Card content */
.pa-card h4 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--pa-white);
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.pa-card:hover h4 {
  color: var(--pa-green-primary);
}

.pa-card p {
  font-size: 1rem;
  color: var(--pa-gray-300);
  line-height: 1.6;
  margin: 0;
}

/* Processing cards special styles */
.pa-processing .pa-card {
  background: linear-gradient(135deg, rgba(13,19,17,0.95), rgba(13,19,17,0.8));
  border: 2px solid var(--pa-gray-700);
}

.pa-processing .pa-card ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0 0;
  text-align: left;
}

.pa-processing .pa-card li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--pa-gray-300);
}

.pa-processing .pa-card li i {
  color: var(--pa-green-primary);
  font-size: 16px;
  flex-shrink: 0;
}



/* Performance metrics card */
.pa-metrics {
  background: linear-gradient(135deg, var(--pa-gray-900) 0%, var(--pa-black-light) 100%);
  border: 1px solid var(--pa-gray-700);
  border-radius: var(--pa-border-radius-lg);
  padding: 48px;
  color: var(--pa-white);
  position: relative;
  overflow: hidden;
  margin-top: 32px;
}

.pa-metrics::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 25% 25%, var(--pa-green-glow) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, var(--pa-green-glow) 0%, transparent 50%);
  opacity: 0.5;
  pointer-events: none;
}

.pa-metrics-content {
  position: relative;
  z-index: 2;
}

.pa-metrics-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}

.pa-metrics-header i {
  font-size: 24px;
  color: var(--pa-green-primary);
}

.pa-metrics-header span {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--pa-white);
}

.pa-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.pa-metric {
  text-align: center;
}

.pa-metric-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--pa-green-primary);
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--pa-green-primary), var(--pa-green-light));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pa-metric-label {
  font-size: 0.875rem;
  color: var(--pa-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* Animation classes */
.pa-animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.pa-animate-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.pa-animate-in:nth-child(1) { transition-delay: 0s; }
.pa-animate-in:nth-child(2) { transition-delay: 0.1s; }
.pa-animate-in:nth-child(3) { transition-delay: 0.2s; }
.pa-animate-in:nth-child(4) { transition-delay: 0.3s; }

/* Responsive Design */
@media (max-width: 1024px) {
  .pa-data-sources {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .pa-processing {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .pa-outputs {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .pa-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .platform-architecture-section {
    padding: 64px 0;
  }
  
  .pa-header h2 {
    font-size: 2rem;
  }
  
  .pa-header p {
    font-size: 1.125rem;
  }
  
  .pa-card {
    padding: 24px;
  }
  
  .pa-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
  }
  
  .pa-icon i {
    font-size: 28px;
  }
  
  .pa-card h4 {
    font-size: 1.25rem;
  }
  
  .pa-metrics {
    padding: 32px 24px;
  }
  
  .pa-metrics-header span {
    font-size: 1.25rem;
  }
  
  .pa-metric-value {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .pa-metrics-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .pa-metric-value {
    font-size: 1.75rem;
  }
  
  .pa-header {
    margin-bottom: 48px;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .pa-card,
  .pa-icon,
  .pa-animate-in {
    transition: none;
    animation: none;
  }
  
  .pa-card:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .pa-card {
    border-width: 2px;
  }
  
  .pa-card:hover {
    border-width: 3px;
  }
  
  .pa-icon {
    border: 2px solid var(--pa-gray-900);
  }
}

/* Focus states for accessibility */
.pa-card:focus-visible {
  outline: 3px solid var(--pa-green-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .platform-architecture-section {
    background: white;
    box-shadow: none;
  }
  
  .pa-card {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .pa-icon {
    background: #f0f0f0;
  }
  
  .pa-metrics {
    background: #f5f5f5;
    color: #000;
  }
}

/* Additional hover effects for consistency with site design */
.pa-card:hover .pa-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, 
    rgba(0,230,118,0.15) 0%, 
    transparent 70%);
  opacity: 1;
  z-index: 1;
  animation: iconGlow 2s ease-in-out infinite alternate;
}

@keyframes iconGlow {
  0% { opacity: 0.8; }
  100% { opacity: 1; }
}

/* Dark theme enhancements */
.platform-architecture-section .pa-card:hover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, 
    rgba(0,230,118,0.05) 0%, 
    transparent 70%);
  opacity: 1;
  transition: opacity var(--pa-transition);
  pointer-events: none;
  z-index: 0;
}

/* Improved focus states for dark theme */
.pa-card:focus-visible {
  outline: 3px solid var(--pa-green-primary);
  outline-offset: 2px;
  border-color: var(--pa-green-primary);
}



/* Staggered animation for cards */
.pa-card:nth-child(1) { animation-delay: 0.1s; }
.pa-card:nth-child(2) { animation-delay: 0.2s; }
.pa-card:nth-child(3) { animation-delay: 0.3s; }
.pa-card:nth-child(4) { animation-delay: 0.4s; }