/**
 * NRLC.ai True Isometric Hero Animation
 * Mobile-First, Lightweight, Strong 3D Isometric
 * Total payload: <800KB on mobile
 */

/* ============================================================================
   HERO CONTAINER — Mobile-First
   STRICT LAYER SEPARATION: Background (dithered) | Foreground (clean)
   ============================================================================ */
.hero-isometric {
  position: relative;
  width: 100%;
  max-width: 100vw; /* Never exceed viewport width */
  min-height: 100vh; /* Full viewport height for vertical centering */
  overflow: hidden; /* Prevent content overflow */
  /* Background layer - WHITE or TRANSPARENT */
  background-color: #ffffff !important; /* Pure white background */
  background-image: none !important; /* NO dither pattern */
  background-size: cover; /* Ensure proper background coverage */
  background-position: center; /* Center background */
  background-repeat: no-repeat; /* No background repetition */
  /* NO dither, NO patterns - clean white/transparent */
  image-rendering: auto;
  isolation: isolate;
  display: flex; /* Flex container for vertical centering */
  flex-direction: column; /* Stack children vertically */
  justify-content: center; /* Vertically center content */
  align-items: center; /* Horizontally center content */
  margin-left: 0; /* Prevent left drift */
  margin-right: 0; /* Prevent right drift */
  margin-bottom: 0;
  margin-top: 0; /* Prevent top margin */
  padding-left: 0; /* Prevent padding-induced drift */
  padding-right: 0; /* Prevent padding-induced drift */
  padding-top: 0; /* Prevent top padding */
  padding-bottom: 0; /* Prevent bottom padding */
  z-index: 1; /* Background layer - BELOW foreground */
}

@media (min-width: 769px) {
  .hero-isometric {
    min-height: 100vh; /* Full viewport height on desktop */
  }
}

/* ============================================================================
   LAYER A — BASE ISOMETRIC GRID (Static/Ultra-Slow, Lightweight)
   ============================================================================ */
.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  max-width: 100%; /* Never exceed parent width */
  height: 100%;
  opacity: 0.08;
  z-index: 2; /* BELOW foreground (10) */
  pointer-events: none;
  overflow: hidden; /* Prevent overflow */
  /* Optimize for mobile */
  will-change: transform;
  transform: translateZ(0); /* GPU acceleration */
  /* Prevent layout drift */
  box-sizing: border-box;
}

.hero-grid::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300%;
  height: 300%;
  /* Very subtle isometric grid - matches site aesthetic */
  background-image: 
    repeating-linear-gradient(
      30deg,
      rgba(0, 0, 0, 0.04) 0px,
      rgba(0, 0, 0, 0.04) 1px,
      transparent 1px,
      transparent 24px
    ),
    repeating-linear-gradient(
      150deg,
      rgba(0, 0, 0, 0.04) 0px,
      rgba(0, 0, 0, 0.04) 1px,
      transparent 1px,
      transparent 24px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.04) 0px,
      rgba(0, 0, 0, 0.04) 1px,
      transparent 1px,
      transparent 24px
    );
  background-size: 24px 24px;
  transform: translate(-50%, -50%) rotateX(35.264deg) rotateZ(45deg);
  transform-origin: center center;
  transform-style: preserve-3d;
}

@media (min-width: 769px) {
  .hero-grid::before {
    width: 400%;
    height: 400%;
    background-size: 32px 32px;
  }
}

/* ============================================================================
   LAYER B — COGNITION LAYER (Strong 3D Isometric, Mobile-Optimized)
   ============================================================================ */
.hero-cognition {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  max-width: 100%; /* Never exceed parent width */
  height: 100%;
  z-index: 2; /* Background layer - BELOW foreground (10) */
  pointer-events: none;
  transform-style: preserve-3d;
  overflow: hidden; /* Prevent overflow */
  /* GPU acceleration */
  transform: translateZ(0);
  will-change: transform;
  /* NO filters, NO blending - pure background layer */
  filter: none;
  mix-blend-mode: normal;
  /* Prevent layout drift */
  box-sizing: border-box;
}

/* Isometric container - Smaller scale, centered */
.cognition-container {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70%; /* Smaller scale */
  max-width: 700px; /* Reduced from 1000px */
  height: 350px; /* Smaller height - Mobile-first */
  /* Strong isometric: X=35.264°, Y=45° - clearly 3D */
  transform: translate(-50%, -50%) rotateX(35.264deg) rotateZ(45deg) scale(0.7); /* Scaled down */
  transform-style: preserve-3d;
  pointer-events: none;
  will-change: transform;
}

@media (min-width: 769px) {
  .cognition-container {
    height: 700px;
  }
}

/* A. Croutons (Microfacts) - Subtle nodes matching site aesthetic */
.cognition-node {
  position: absolute;
  width: 10px;
  height: 10px;
  /* Subtle dither - uses main colors */
  background-color: rgba(18, 53, 94, 0.15); /* Main color 1 - #12355e */
  background-image: 
    repeating-linear-gradient(
      45deg,
      rgba(18, 53, 94, 0.15) 0px,
      rgba(18, 53, 94, 0.15) 1px,
      rgba(18, 53, 94, 0.08) 1px,
      rgba(18, 53, 94, 0.08) 2px
    );
  background-size: 3px 3px;
  border: 1px solid rgba(18, 53, 94, 0.2);
  transform: translate(-50%, -50%);
  opacity: 0.7;
  z-index: 4; /* BELOW foreground */
  will-change: transform, opacity;
  transform: translate(-50%, -50%) translateZ(0);
}

.cognition-node::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 20%;
  width: 40%;
  height: 40%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  pointer-events: none;
}

@media (min-width: 769px) {
  .cognition-node {
    width: 14px;
    height: 14px;
  }
}

/* Minimal data source positions - top layer, elevated */
.cognition-node--source-1 { top: 20%; left: 25%; transform: translate(-50%, -50%) translateZ(42px) scale(0.7); }
.cognition-node--source-2 { top: 20%; left: 50%; transform: translate(-50%, -50%) translateZ(42px) scale(0.7); }
.cognition-node--source-3 { top: 20%; left: 75%; transform: translate(-50%, -50%) translateZ(42px) scale(0.7); }

/* B. Precogs (Reasoning Graph) - Optimized edges */
.cognition-edges {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 4; /* BELOW foreground (10) */
  /* Lightweight filter */
  filter: drop-shadow(0 1px 1px rgba(18, 53, 94, 0.1));
}

.cognition-edge {
  /* Flailing lines - animated, dynamic */
  stroke: rgba(18, 53, 94, 0.4); /* Main color 1 - #12355e */
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  will-change: stroke-dashoffset, stroke-opacity, d;
  opacity: 0.6;
  /* Flailing animation */
  animation: flailLine 3s ease-in-out infinite;
}

.cognition-edge--flail-1 {
  animation-delay: 0s;
}

.cognition-edge--flail-2 {
  animation-delay: 0.3s;
}

.cognition-edge--flail-3 {
  animation-delay: 0.6s;
}

@keyframes flailLine {
  0%, 100% {
    d: path("M 250 120 L 500 450");
    opacity: 0.6;
  }
  25% {
    d: path("M 250 120 Q 350 250 500 450");
    opacity: 0.8;
  }
  50% {
    d: path("M 250 120 Q 400 280 500 450");
    opacity: 0.6;
  }
  75% {
    d: path("M 250 120 Q 350 250 500 450");
    opacity: 0.8;
  }
}

/* Grids that expand from node positions - natural flowing expansion */
.node-grid {
  opacity: 0;
  transform-origin: center;
  animation: gridExpand 6s ease-in-out infinite; /* Slower, smoother */
}

.node-grid-1 {
  animation-delay: 0s;
}

.node-grid-2 {
  animation-delay: 0.3s;
}

.node-grid-3 {
  animation-delay: 0.6s;
}

@keyframes gridExpand {
  0% {
    opacity: 0;
    transform: scale(0);
  }
  20% {
    opacity: 0.3;
    transform: scale(0.5);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
  80% {
    opacity: 0.4;
    transform: scale(1);
  }
  100% {
    opacity: 0.2;
    transform: scale(1.1);
  }
}

/* Flowing shadows - natural expansion beneath objects */
.shadow-shadow-1,
.shadow-shadow-2,
.shadow-shadow-3 {
  opacity: 0.2;
  animation: shadowPulse 5s ease-in-out infinite; /* Slower, smoother */
  transform: scale(1); /* No bouncing - static scale */
  transition: opacity 0.5s ease-in-out;
}

.shadow-shadow-1 {
  animation-delay: 0s;
}

.shadow-shadow-2 {
  animation-delay: 0.3s;
}

.shadow-shadow-3 {
  animation-delay: 0.6s;
}

@keyframes shadowPulse {
  0% {
    opacity: 0.2;
  }
  30% {
    opacity: 0.4;
  }
  60% {
    opacity: 0.5;
  }
  100% {
    opacity: 0.2;
  }
}

@media (min-width: 769px) {
  .cognition-edge {
    stroke-width: 2;
  }
}

/* Domain planes removed - minimal objects only */

@media (min-width: 769px) {
  .cognition-plane--applicants {
    width: 120px;
    height: 80px;
  }
  .cognition-plane--newfaq {
    width: 100px;
    height: 100px;
  }
  .cognition-plane--ourcasa {
    width: 120px;
    height: 80px;
  }
  .cognition-plane--renderer {
    width: 100px;
    height: 60px;
  }
}

/* Data streams removed - minimal objects only */

@media (min-width: 769px) {
  .cognition-streamline {
    height: 2px;
    width: 200px;
  }
}

/* Neural Command OS - Central Intelligence Hub (Subtle, matches site) */
.cognition-command {
  position: absolute;
  top: 75%;
  left: 50%;
  width: 17px; /* Scaled down */
  height: 17px; /* Scaled down */
  /* Subtle fill - uses main color */
  background-color: rgba(18, 53, 94, 0.25); /* Main color 1 - #12355e */
  background-image: 
    repeating-linear-gradient(
      45deg,
      rgba(18, 53, 94, 0.25) 0px,
      rgba(18, 53, 94, 0.25) 1px,
      rgba(18, 53, 94, 0.15) 1px,
      rgba(18, 53, 94, 0.15) 2px
    );
  background-size: 3px 3px;
  border: 2px solid rgba(18, 53, 94, 0.3);
  transform: translate(-50%, -50%) translateZ(100px);
  z-index: 5; /* BELOW foreground */
  opacity: 0.9;
  will-change: transform, opacity;
}

.cognition-command::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 15%;
  width: 50%;
  height: 50%;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  pointer-events: none;
}

/* Glow and pulse ring removed - minimal objects only */

@media (min-width: 769px) {
  .cognition-command {
    width: 28px;
    height: 28px;
  }
}

/* Reduced motion: Static isometric frame */
@media (prefers-reduced-motion: reduce) {
  .hero-grid,
  .hero-cognition,
  .cognition-node,
  .cognition-plane,
  .cognition-streamline,
  .cognition-command {
    animation: none !important;
  }
  
  .hero-grid::before {
    transform: translate(-50%, -50%) rotateX(35.264deg) rotateZ(45deg);
  }
}

/* ============================================================================
   LAYER C — FOREGROUND UI (STRICT: NO DITHER, CLEAN UI ONLY)
   ============================================================================ */
.hero-foreground {
  position: relative;
  z-index: 10 !important; /* Above background dither layer */
  display: flex;
  flex-direction: column;
  align-items: center; /* Center horizontally */
  justify-content: center; /* Vertically centered */
  min-height: 100%; /* Fill parent height for centering */
  width: 100%; /* Full width */
  max-width: 100%; /* Never exceed parent width */
  margin: 0; /* No margins */
  padding: var(--spacing-16) var(--container-padding) var(--spacing-24) var(--container-padding); /* Reduced top padding */
  text-align: left; /* Left align text content */
  pointer-events: auto;
  /* Prevent layout drift */
  box-sizing: border-box;
}

.hero-foreground .content-block__body {
  text-align: left !important; /* Left align body content */
  width: 100%; /* Full width */
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12); /* Spacing between paragraphs */
  margin: 0; /* No margins */
  padding: 0; /* No padding */
}

.hero-foreground .content-block__body .lead {
  text-align: left !important; /* Left align lead paragraph */
  font-size: clamp(1.125rem, 2.5vw, 1.5rem); /* Larger lead text */
  line-height: var(--line-height-relaxed); /* More relaxed line height */
  margin: 0; /* No margins - spacing handled by gap */
  font-weight: var(--font-weight-medium); /* Slightly bolder */
}

@media (min-width: 769px) {
  .hero-foreground {
    min-height: 100%; /* Fill parent height */
    padding: var(--spacing-24) var(--container-padding-lg) var(--spacing-32) var(--container-padding-lg); /* Reduced top padding on desktop */
    max-width: var(--container-max-width); /* Match site container max-width */
  }
  
  .hero-foreground .content-block__body {
    gap: var(--spacing-16); /* More spacing between paragraphs on desktop */
  }
  
  .hero-foreground .btn-group {
    margin-top: 24px !important; /* FIXED - same as base, no variation */
    gap: 12px !important; /* FIXED - same as base, no variation */
  }
}

.hero-foreground .content-block {
  /* STRICT: NO dither, NO filters, NO blending - clean content block */
  background: none !important;
  background-color: transparent !important;
  backdrop-filter: none !important;
  filter: none !important;
  mix-blend-mode: normal !important; /* Prevent dither bleed */
  border-radius: 0;
  padding: var(--spacing-24); /* Generous padding for spacing */
  margin: 0; /* No margins - spacing handled by parent */
  box-shadow: none !important;
  border: none !important;
  opacity: 1 !important; /* Full opacity - no blending */
  text-align: left !important; /* Left align content block */
  align-items: flex-start; /* Left align flex children */
  width: 100%; /* Full width */
  max-width: 100%; /* Never exceed parent */
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16); /* Spacing between header and body */
}

@media (min-width: 769px) {
  .hero-foreground .content-block {
    padding: var(--spacing-20) var(--spacing-32) var(--spacing-32) var(--spacing-32); /* Reduced top padding on desktop */
    gap: var(--spacing-24); /* More spacing between elements on desktop */
  }
}

.hero-foreground .content-block__title,
.hero-foreground .content-block__body,
.hero-foreground .content-block__body p,
.hero-foreground .content-block__body .lead {
  /* STRICT: Clean text - NO dither, NO filters, NO blending, NO shadows */
  text-shadow: none !important;
  color: var(--color-text-primary);
  position: relative;
  z-index: 1;
  filter: none !important;
  mix-blend-mode: normal !important; /* Prevent dither bleed */
  /* Ensure crisp rendering - no pixelation from background */
  image-rendering: auto;
}

.hero-foreground .content-block__title {
  font-weight: var(--font-weight-bold);
  font-size: clamp(1.75rem, 5vw, 3rem); /* Larger, more prominent */
  text-align: left !important; /* Left align title */
  margin: 0 0 var(--spacing-16) 0; /* Spacing below title */
  line-height: var(--line-height-tight); /* Tighter line height for headings */
}

/* Bright square bullet points for hero applications */
.hero-foreground .hero-applications {
  list-style: none;
  padding-left: 0;
  margin: var(--spacing-md) 0;
  text-align: left !important; /* Force left align */
  display: inline-block; /* Allow left alignment */
  width: 100%;
  max-width: 100%;
}

.hero-foreground .hero-applications li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  text-align: left !important; /* Force left align */
  display: block;
}

.hero-foreground .hero-applications li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: rgba(18, 53, 94, 0.8); /* Main color 1 - #12355e */
  transform: rotate(45deg);
  box-shadow: 0 0 6px rgba(18, 53, 94, 0.6); /* Glow effect */
}

@media (min-width: 769px) {
  .hero-foreground .hero-applications li::before {
    width: 7px;
    height: 7px;
    box-shadow: 0 0 8px rgba(18, 53, 94, 0.8);
  }
}

/* All hero buttons must have identical styling - STRICT: NO dither, clean UI */
/* UNIFORM SIZING - matches w3c-functional.css exactly */
.hero-foreground .btn,
.hero-foreground .btn--primary {
  position: relative;
  z-index: 2;
  /* Solid background - NO transparency that could blend with dither */
  background: #ffffff !important; /* Pure white - no rgba blending */
  backdrop-filter: none !important; /* NO blur filters */
  filter: none !important; /* NO filters */
  mix-blend-mode: normal !important; /* Prevent dither bleed */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
  color: var(--color-text-primary, #1a1a1a) !important;
  font-weight: 500 !important; /* FIXED - medium weight */
  text-shadow: none !important;
  border: 2px solid var(--color-border-strong, rgba(0, 0, 0, 0.1)) !important;
  padding: 12px 24px !important; /* EXACT - matches base .btn */
  font-size: 16px !important; /* FIXED - matches base .btn */
  line-height: 1.5 !important; /* FIXED */
  text-align: center !important;
  text-decoration: none !important;
  cursor: pointer !important;
  transition: all var(--duration-fast, 0.2s) var(--ease-functional, ease) !important;
  min-height: 44px !important; /* FIXED - matches base .btn */
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  margin: 0 !important; /* ZERO margin */
  width: auto !important;
  min-width: auto !important;
  box-sizing: border-box !important;
  white-space: nowrap !important;
  /* Ensure crisp rendering - no pixelation */
  image-rendering: auto;
}

/* Remove primary button special styling in hero - STRICT: NO dither */
.hero-foreground .btn--primary {
  background: #ffffff !important; /* Pure white - NO rgba blending */
  color: var(--color-text-primary, #1a1a1a) !important;
  border-color: var(--color-border-strong, rgba(0, 0, 0, 0.2)) !important;
  filter: none !important;
  mix-blend-mode: normal !important;
}

/* Hover state - same for all buttons - STRICT: NO dither */
.hero-foreground .btn:hover,
.hero-foreground .btn--primary:hover {
  background: #ffffff !important; /* Pure white - NO rgba blending */
  border-color: var(--color-brand, #0066cc) !important;
  color: var(--color-text-primary, #1a1a1a) !important;
  transform: translateY(-1px) !important;
  box-shadow: none !important;
  filter: none !important;
  mix-blend-mode: normal !important;
}

/* Active state - same for all buttons - STRICT: NO dither */
.hero-foreground .btn:active,
.hero-foreground .btn--primary:active {
  background: #f5f5f5 !important; /* Light gray - NO rgba blending */
  transform: translateY(0) !important;
  box-shadow: none !important;
  filter: none !important;
  mix-blend-mode: normal !important;
}

.hero-foreground .content-block {
  max-width: 800px;
  width: 100%;
}

.hero-foreground .btn-group {
  justify-content: flex-start; /* Left align buttons */
  max-width: 100%;
  width: 100%; /* Full width for better spacing */
  margin-top: 24px !important; /* FIXED - matches base .btn-group */
  margin-bottom: 0;
  gap: 12px !important; /* FIXED - matches base .btn-group */
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: center !important;
}

.hero-foreground .btn-group .btn {
  width: auto !important;
  flex: 0 0 auto !important;
  margin: 0 !important; /* ZERO margin - uniform spacing */
  padding: 12px 24px !important; /* EXACT - matches base .btn */
  min-height: 44px !important; /* FIXED */
}

/* Mobile: ensure buttons are touch-friendly */
@media (max-width: 768px) {
  .hero-foreground .btn-group .btn {
    min-width: auto !important; /* Let content determine width */
    padding: 12px 24px !important; /* EXACT - same as desktop */
    min-height: 44px !important; /* FIXED */
  }
}

/* Hero border removed */

/* ============================================================================
   LEVEL AT FOLD - Clean transition, zero overlap
   ============================================================================ */
main {
  position: relative;
  z-index: 10;
  background: var(--color-bg-primary, #ffffff);
  margin-top: 0 !important; /* Zero overlap - border defines fold */
}

/* Clean container - no borders, no weird overlays */
main .container {
  position: relative;
  background: var(--color-bg-primary, #ffffff);
  border: none !important;
  box-shadow: none !important;
  outline: none !important;
}

/* First section - spacing begins AFTER border, not before */
main .section:first-child {
  margin-top: 0 !important; /* Zero overlap */
  padding-top: var(--spacing-32, 2rem); /* Spacing after border */
}

/* Ensure content below hero covers the parallax background */
main::before {
  content: '';
  position: absolute;
  top: -100px; /* Overlap with hero */
  left: 0;
  right: 0;
  height: 100px;
  background: var(--color-bg-primary, #ffffff);
  z-index: -1;
}