/**
 * Alithia - Elite AI Operating System Interface
 * Sophisticated design system inspired by cinematic experiences
 */

/* =========================================
   CSS Custom Properties - Design Tokens
   ========================================= */

:root {
  /* Typography */
  --font-primary: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-secondary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
  
  /* Font Weights */
  --font-weight-thin: 100;
  --font-weight-extralight: 200;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;
  
  /* Fluid Typography Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 3rem);
  --text-4xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  --text-5xl: clamp(4rem, 3rem + 5vw, 6rem);
  
  /* Color Palette */
  --color-primary: #ffffff;
  --color-secondary: #a8a8a8;
  --color-tertiary: #666666;
  --color-accent: #0066ff;
  --color-accent-bright: #3388ff;
  
  /* Background Colors */
  --color-bg-primary: #000000;
  --color-bg-secondary: #0a0a0a;
  --color-bg-tertiary: #111111;
  --color-bg-glass: rgba(255, 255, 255, 0.02);
  --color-bg-glass-strong: rgba(255, 255, 255, 0.05);
  
  /* Border Colors */
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.15);
  --color-border-accent: rgba(0, 102, 255, 0.3);
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-40: 10rem;
  --space-48: 12rem;
  --space-64: 16rem;
  
  /* Layout */
  --container-max: 1200px;
  --section-padding: clamp(4rem, 8vw, 8rem);
  
  /* Effects */
  --blur-sm: 4px;
  --blur-md: 8px;
  --blur-lg: 16px;
  --blur-xl: 24px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-overlay: 1000;
  --z-modal: 2000;
  --z-loading: 10000;
}

/* =========================================
   Reset & Base Styles
   ========================================= */

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

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  height: 100%;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* =========================================
   Canvas Container - Full Screen 3D
   ========================================= */

.canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: #000000;
}

#mainCanvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #000000;
}

/* =========================================
   UI Overlay - Glass Morphism Interface
   ========================================= */

.ui-overlay {
  position: relative;
  z-index: var(--z-overlay);
  pointer-events: none;
}

.ui-overlay > * {
  pointer-events: auto;
}

/* =========================================
   Navigation - Premium Header Design
   ========================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.98) 0%, rgba(0, 0, 0, 0.9) 100%);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05) inset;
}

.nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(0, 255, 255, 0.2) 20%, 
    rgba(0, 255, 255, 0.2) 80%, 
    transparent
  );
  opacity: 0.5;
}

.nav-content {
  height: 80px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--space-10);
  max-width: 1800px;
  margin: 0 auto;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.logo-mark {
  width: 20px;
  height: 20px;
  position: relative;
  perspective: 100px;
}

.logo-cube-alive {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  animation: cubeFloat 8s ease-in-out infinite;
}

@keyframes cubeFloat {
  0%, 100% { transform: rotateY(0deg) rotateX(0deg); }
  25% { transform: rotateY(-2deg) rotateX(1deg); }
  50% { transform: rotateY(0deg) rotateX(-1deg); }
  75% { transform: rotateY(2deg) rotateX(1deg); }
}

.cube-face {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.9), rgba(0, 20, 40, 0.9));
  border: 1px solid rgba(0, 102, 255, 0.3);
  box-shadow: 
    inset 0 0 20px rgba(0, 102, 255, 0.2),
    0 0 30px rgba(0, 102, 255, 0.1);
}

.cube-face.front {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.logo-mark .cube-face.front {
  padding-top: 5px;
}

.logo-mark .eye-row {
  display: flex;
  gap: 2px;
  justify-content: center;
}

.logo-mark .mouth-row {
  display: flex;
  justify-content: center;
  margin-top: 0;
  position: absolute;
  bottom: 4px;
  width: 100%;
}

/* Block Eyes */
.intelligent-eye {
  position: relative;
  width: 10px;
  height: 5px;
  background: #0066ff;
  border-radius: 0;
  overflow: visible;
  animation: logoBlink 5s ease-in-out infinite;
}

/* Smaller eyes for logo */
.logo-mark .intelligent-eye {
  width: 8px;
  height: 4px;
}

.intelligent-eye::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: inherit;
  opacity: 0.3;
  animation: scan 3s ease-in-out infinite;
}

@keyframes scan {
  0%, 100% { 
    opacity: 0.3;
  }
  50% { 
    opacity: 0.8;
  }
}

.intelligent-eye::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 3px;
  background: #00ff88;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 0;
  animation: focus 4s ease-in-out infinite, pupilBlink 5s ease-in-out infinite;
}

/* Smaller pupils for logo */
.logo-mark .intelligent-eye::after {
  width: 3px;
  height: 2px;
}

@keyframes focus {
  0%, 100% { 
    left: 50%;
    opacity: 1;
  }
  25% { 
    left: 25%;
    opacity: 0.8;
  }
  50% { 
    left: 50%;
    opacity: 1;
  }
  75% { 
    left: 75%;
    opacity: 0.8;
  }
}

@keyframes logoBlink {
  0%, 85%, 100% { 
    transform: scaleY(1);
    transform-origin: bottom;
  }
  87% { 
    transform: scaleY(0.1);
    transform-origin: bottom;
  }
  89% { 
    transform: scaleY(1);
    transform-origin: bottom;
  }
}

@keyframes pupilBlink {
  0%, 85%, 100% { 
    opacity: 1;
  }
  87%, 89% { 
    opacity: 0;
  }
}

/* Expression Mouth */
.expression-mouth {
  position: relative;
  width: 12px;
  height: 4px;
  margin-top: 2px;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Smaller mouth for logo */
.logo-mark .expression-mouth {
  width: 8px;
  height: 3px;
  margin-top: 0;
}

.expression-mouth::before {
  content: '';
  position: absolute;
  width: 8px;
  height: 1px;
  background: #0066ff;
  border-radius: 0;
  animation: mouthMorph 15s ease-in-out infinite;
}

/* Smaller mouth shape for logo */
.logo-mark .expression-mouth::before {
  width: 6px;
}

@keyframes mouthMorph {
  /* Neutral line */
  0%, 100% {
    width: var(--mouth-width, 8px);
    height: 1px;
    border-radius: 0;
    transform: rotate(0deg) scaleY(1);
  }
  /* Slight smile */
  15% {
    width: var(--mouth-width, 8px);
    height: 2px;
    border-radius: 0 0 50% 50%;
    transform: rotate(0deg) scaleY(1);
  }
  /* Thinking circle */
  30% {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    transform: rotate(0deg) scaleY(1);
  }
  /* Skeptical diagonal */
  45% {
    width: var(--mouth-width, 8px);
    height: 1px;
    border-radius: 0;
    transform: rotate(-15deg) scaleY(1);
  }
  /* Surprised O */
  60% {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    transform: rotate(0deg) scaleY(1.3);
  }
  /* Concentrated line */
  75% {
    width: calc(var(--mouth-width, 8px) * 0.75);
    height: 1px;
    border-radius: 0;
    transform: rotate(0deg) scaleY(1);
  }
  /* Happy curve */
  90% {
    width: var(--mouth-width, 8px);
    height: 2px;
    border-radius: 0 0 50% 50%;
    transform: rotate(0deg) scaleY(1);
  }
}

.logo-mark .expression-mouth::before {
  --mouth-width: 6px;
}

/* Enhanced eye animations with thinking movements */
.intelligent-eye.left {
  animation: logoBlink 5s ease-in-out infinite, eyeRollLeft 15s ease-in-out infinite;
}

.intelligent-eye.right {
  animation: logoBlink 5s ease-in-out infinite, eyeRollRight 15s ease-in-out infinite;
}

@keyframes eyeRollLeft {
  0%, 10%, 90%, 100% {
    transform: translateY(0);
  }
  /* Roll up when thinking */
  28%, 32% {
    transform: translateY(-2px);
  }
  /* Look sideways when skeptical */
  43%, 47% {
    transform: translateX(-1px);
  }
  /* Wide when surprised */
  58%, 62% {
    transform: scale(1.1);
  }
}

@keyframes eyeRollRight {
  0%, 10%, 90%, 100% {
    transform: translateY(0);
  }
  /* Roll up when thinking */
  28%, 32% {
    transform: translateY(-2px);
  }
  /* Look sideways when skeptical */
  43%, 47% {
    transform: translateX(1px);
  }
  /* Wide when surprised */
  58%, 62% {
    transform: scale(1.1);
  }
}

/* Sync pupil movements with expressions */
.intelligent-eye.left::after {
  animation: focus 4s ease-in-out infinite, pupilBlink 5s ease-in-out infinite, pupilThink 15s ease-in-out infinite;
}

.intelligent-eye.right::after {
  animation: focus 4s ease-in-out infinite, pupilBlink 5s ease-in-out infinite, pupilThink 15s ease-in-out infinite;
}

@keyframes pupilThink {
  0%, 10%, 90%, 100% {
    top: 50%;
  }
  /* Look up when thinking */
  28%, 32% {
    top: 25%;
  }
  /* Narrow when concentrated */
  73%, 77% {
    height: 2px;
  }
}

/* Clean up duplicate selectors - animations already defined above */

/* Enhanced hover effects */
.nav-logo:hover .logo-cube-alive {
  animation-duration: 2s;
}

.nav-logo:hover .eye-lid {
  animation-duration: 2s;
}

.nav-logo:hover .intelligent-eye {
  animation-duration: 3s;
}

.nav-logo:hover .neural-glow {
  animation-duration: 1s;
  opacity: 1;
}

@keyframes logoRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.logo-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-extralight);
  letter-spacing: 0.4em;
  color: var(--color-primary);
  font-family: var(--font-primary);
  text-transform: uppercase;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.logo-main {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.4em;
  position: relative;
  animation: matrixGlitch 3s ease-in-out infinite;
}

@keyframes matrixGlitch {
  0%, 88%, 100% { 
    transform: translateX(0) skewX(0deg);
    opacity: 1;
    filter: hue-rotate(0deg);
  }
  90% { 
    transform: translateX(-4px) skewX(-2deg);
    opacity: 0.7;
    filter: hue-rotate(90deg);
  }
  91% { 
    transform: translateX(3px) skewX(1deg);
    opacity: 0.3;
    filter: hue-rotate(-45deg);
  }
  92% { 
    transform: translateX(-2px) skewX(0.5deg);
    opacity: 0.9;
    filter: hue-rotate(180deg);
  }
  93% { 
    transform: translateX(1px) skewX(-1deg);
    opacity: 0.4;
    filter: hue-rotate(270deg);
  }
  94% { 
    transform: translateX(0) skewX(0deg);
    opacity: 1;
    filter: hue-rotate(0deg);
  }
}

.logo-main::before {
  content: 'ALITHIA';
  position: absolute;
  top: 0;
  left: 0;
  color: #00ff88;
  opacity: 0;
  animation: greenGlitch 3s ease-in-out infinite;
  mix-blend-mode: screen;
  text-shadow: 0 0 5px #00ff88;
}

.logo-main::after {
  content: 'ALITHIA';
  position: absolute;
  top: 0;
  left: 0;
  color: #ff0040;
  opacity: 0;
  animation: redGlitch 3s ease-in-out infinite;
  mix-blend-mode: multiply;
}

@keyframes greenGlitch {
  0%, 87%, 100% { 
    opacity: 0;
    transform: translateX(0) scaleX(1);
  }
  89% { 
    opacity: 0.8;
    transform: translateX(-2px) scaleX(1.05);
  }
  90% { 
    opacity: 0.4;
    transform: translateX(1px) scaleX(0.95);
  }
  91% { 
    opacity: 0.9;
    transform: translateX(-1px) scaleX(1.02);
  }
  92% { 
    opacity: 0;
    transform: translateX(0) scaleX(1);
  }
}

@keyframes redGlitch {
  0%, 89%, 100% { 
    opacity: 0;
    transform: translateX(0) scaleY(1);
  }
  91% { 
    opacity: 0.6;
    transform: translateX(2px) scaleY(1.1);
  }
  92% { 
    opacity: 0.3;
    transform: translateX(-1px) scaleY(0.9);
  }
  93% { 
    opacity: 0.7;
    transform: translateX(1px) scaleY(1.05);
  }
  94% { 
    opacity: 0;
    transform: translateX(0) scaleY(1);
  }
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.1);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-indicator {
  width: 6px;
  height: 6px;
  background: #00ff88;
  border-radius: 50%;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.status-text {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: var(--color-tertiary);
  text-transform: uppercase;
}

.nav-center {
  justify-self: center;
}

.nav-menu {
  display: flex;
  gap: var(--space-10);
}

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  color: var(--color-secondary);
  text-decoration: none;
  transition: all var(--transition-base);
}

.link-text {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.link-underline {
  position: absolute;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00ffff, transparent);
  transition: width var(--transition-base);
}

.nav-link:hover .link-text {
  color: var(--color-primary);
}

.nav-link:hover .link-underline {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  justify-self: end;
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: var(--color-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-icon:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.02);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

.btn-primary-nav {
  position: relative;
  display: inline-block;
  text-decoration: none;
  padding: 0;
  overflow: visible;
}

.btn-frame {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px 24px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.btn-text {
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: #00ffff;
  font-family: var(--font-primary);
  transition: all var(--transition-base);
}

.btn-indicator {
  width: 4px;
  height: 4px;
  background: #00ff88;
  border-radius: 50%;
  animation: indicatorPulse 2s ease-in-out infinite;
}

@keyframes indicatorPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.btn-border-top,
.btn-border-bottom {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.4), transparent);
  transition: all var(--transition-base);
}

.btn-border-top {
  top: 0;
  transform: scaleX(0);
  transform-origin: left;
}

.btn-border-bottom {
  bottom: 0;
  transform: scaleX(0);
  transform-origin: right;
}

.btn-primary-nav:hover .btn-border-top,
.btn-primary-nav:hover .btn-border-bottom {
  transform: scaleX(1);
}

.btn-primary-nav:hover .btn-frame {
  background: rgba(0, 255, 255, 0.05);
  transform: translateY(-1px);
}

.btn-primary-nav:hover .btn-text {
  color: #ffffff;
}

.btn-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle at center, rgba(0, 255, 255, 0.2), transparent);
  opacity: 0;
  filter: blur(20px);
  transition: opacity var(--transition-base);
  pointer-events: none;
  z-index: -1;
}

.btn-primary-nav:hover .btn-glow {
  opacity: 1;
}

/* =========================================
   Hero Section - Premium Grid Layout
   ========================================= */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 72px;
}

.hero-grid {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--space-8);
  position: relative;
}

/* Grid Lines Background */
.grid-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.1;
}

.grid-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.grid-line.vertical {
  width: 1px;
  height: 100%;
  top: 0;
}

.grid-line.vertical:nth-child(1) { left: 25%; }
.grid-line.vertical:nth-child(2) { left: 50%; }
.grid-line.vertical:nth-child(3) { left: 75%; }

.grid-line.horizontal {
  width: 100%;
  height: 1px;
  left: 0;
}

.grid-line.horizontal:nth-child(4) { top: 33%; }
.grid-line.horizontal:nth-child(5) { top: 66%; }

/* Hero Content */
.hero-content {
  position: relative;
  z-index: 1;
  animation: heroFadeIn 2s ease-out 0.5s both;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.meta-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: var(--color-tertiary);
  text-transform: uppercase;
}

.meta-value {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: #00ff88;
  font-family: var(--font-mono);
}

.meta-divider {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Badge */
.hero-badge {
  margin-bottom: var(--space-10);
}

.badge-inner {
  display: inline-block;
  position: relative;
  padding: var(--space-3) var(--space-6);
}

.badge-text {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.2em;
  color: #00ffff;
  text-transform: uppercase;
}

.badge-border {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 255, 255, 0.3);
  pointer-events: none;
}

.badge-border::before,
.badge-border::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border: 1px solid #00ffff;
}

.badge-border::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.badge-border::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* Hero Title */
.hero-title {
  margin-bottom: var(--space-10);
}

.title-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.title-line {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.title-word {
  font-size: clamp(2.5rem, 5vw, 5rem);
  font-weight: var(--font-weight-thin);
  letter-spacing: -0.03em;
  line-height: 0.9;
  font-family: var(--font-primary);
  animation: titleWordFade 1s ease-out both;
}

.title-line.accent .title-word {
  background: linear-gradient(135deg, #ffffff, #00ffff);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.title-word:nth-child(1) { animation-delay: 0.1s; }
.title-word:nth-child(2) { animation-delay: 0.2s; }
.title-word:nth-child(3) { animation-delay: 0.3s; }
.title-word:nth-child(4) { animation-delay: 0.4s; }
.title-word:nth-child(5) { animation-delay: 0.5s; }

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

/* Hero Description */
.hero-description {
  margin-bottom: var(--space-12);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.description-box {
  position: relative;
  padding: var(--space-6);
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
}

.description-box p {
  font-size: var(--text-lg);
  color: var(--color-secondary);
  line-height: 1.6;
}

.description-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.description-corner.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.description-corner.tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.description-corner.bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.description-corner.br { bottom: 0; right: 0; border-left: none; border-top: none; }

/* Hero Actions */
.hero-actions {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

.btn-hero {
  position: relative;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-base);
}

.btn-hero .btn-content {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-8);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
}

.btn-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.btn-arrow {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
}

.btn-hero:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-border {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  pointer-events: none;
  transition: all var(--transition-base);
}

.btn-hero.primary .btn-border {
  border-color: rgba(0, 255, 255, 0.4);
}

.btn-hero.primary .btn-label {
  color: #00ffff;
}

.btn-hero:hover .btn-border {
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-hero.primary:hover .btn-border {
  border-color: rgba(0, 255, 255, 0.8);
}

.btn-hero.primary .btn-glow {
  position: absolute;
  inset: -8px;
  background: radial-gradient(circle at center, rgba(0, 255, 255, 0.2), transparent);
  opacity: 0;
  filter: blur(20px);
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.btn-hero.primary:hover .btn-glow {
  opacity: 1;
}

/* Hero Stats */
.hero-stats {
  position: absolute;
  top: 50%;
  right: var(--space-8);
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.stat-card {
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-width: 160px;
}

.stat-value {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-light);
  color: #00ffff;
  font-family: var(--font-mono);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: var(--color-tertiary);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.stat-graph {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 32px;
}

.graph-bar {
  flex: 1;
  background: linear-gradient(to top, rgba(0, 255, 255, 0.4), rgba(0, 255, 255, 0.1));
  transition: height var(--transition-base);
}

.stat-canvas {
  width: 100%;
  height: 32px;
}

/* Advanced Scroll Indicator */
.scroll-indicator.advanced {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.scroll-track {
  width: 2px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.scroll-thumb {
  position: absolute;
  width: 100%;
  height: 20px;
  background: linear-gradient(to bottom, transparent, #00ffff, transparent);
  animation: scrollThumb 2s ease-in-out infinite;
}

@keyframes scrollThumb {
  0%, 100% { top: -20px; }
  50% { top: 60px; }
}

.scroll-indicator .scroll-text {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.2em;
  color: var(--color-tertiary);
  text-transform: uppercase;
}

.scroll-arrows {
  width: 20px;
  height: 20px;
  color: var(--color-tertiary);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* =========================================
   Sections - Content Areas
   ========================================= */

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-header {
  margin-bottom: var(--space-20);
  text-align: center;
}

.section-badge {
  display: inline-block;
  margin-bottom: var(--space-6);
  color: var(--color-tertiary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

/* =========================================
   Section Headers
   ========================================= */

.section-header {
  margin-bottom: var(--space-20);
  text-align: center;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.label-number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-regular);
  color: #00ffff;
}

.label-divider {
  color: var(--color-tertiary);
}

.label-text {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.2em;
  color: var(--color-tertiary);
  font-family: var(--font-primary);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-thin);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: var(--font-primary);
}

.section-title .title-line {
  display: block;
}

.section-title .title-line.accent {
  background: linear-gradient(135deg, #ffffff, #00ffff);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  margin-top: var(--space-4);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.1em;
  color: #00ff88;
  font-family: var(--font-primary);
  text-transform: uppercase;
}

/* =========================================
   Overview Section - Grid Design
   ========================================= */

.overview-grid {
  margin-top: var(--space-16);
}

/* Feature Cards Grid */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  position: relative;
  padding: var(--space-10);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-slow);
  cursor: pointer;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 102, 255, 0.5), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.feature-card:hover::before {
  transform: translateX(100%);
}

.feature-card:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
  border-color: rgba(0, 102, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 102, 255, 0.1);
}

.feature-card.active {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(0, 102, 255, 0.05) 100%);
  border-color: rgba(0, 102, 255, 0.5);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  margin-bottom: var(--space-6);
}

.card-number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-tertiary);
  opacity: 0.6;
}

.card-icon {
  position: relative;
}

.icon-hex {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.icon-hex::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), transparent);
  clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
  transition: all var(--transition-base);
}

.feature-card:hover .icon-hex::before {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.4), transparent);
  transform: rotate(30deg);
}

.icon-hex svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-accent);
  z-index: 1;
  position: relative;
}

.feature-card .card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.card-description {
  font-size: var(--text-sm);
  color: var(--color-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.card-stats {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.card-stats .stat-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.card-stats .stat-value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
}

.card-stats .stat-label {
  font-size: var(--text-xs);
  color: var(--color-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-stats .stat-divider {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.1);
}

/* =========================================
   Technology Section
   ========================================= */

.tech-demo {
  margin-top: var(--space-16);
}

.demo-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}

.demo-btn {
  padding: var(--space-3) var(--space-6);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
}

.demo-btn:hover,
.demo-btn.active {
  background: var(--color-bg-glass);
  border-color: var(--color-border-strong);
  color: var(--color-primary);
}

.demo-info {
  display: flex;
  justify-content: center;
}

.demo-stats {
  display: flex;
  gap: var(--space-12);
  padding: var(--space-8);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
}

.stat-item {
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* =========================================
   Platform Section
   ========================================= */

.platform-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-16);
}

.feature-item {
  padding: var(--space-8);
  text-align: center;
  transition: transform var(--transition-base);
}

.feature-item:hover {
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-6);
  color: var(--color-secondary);
  transition: color var(--transition-base);
}

.feature-item:hover .feature-icon {
  color: var(--color-primary);
}

.feature-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.feature-description {
  color: var(--color-secondary);
  line-height: 1.6;
}

/* =========================================
   Access Section - Premium Form Design
   ========================================= */

.access {
  background: linear-gradient(180deg, #000000 0%, #050505 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.access-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--section-padding) var(--space-8);
  position: relative;
}

.access-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.access-grid .grid-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.02), transparent);
}

.access-grid .grid-line.vertical {
  width: 1px;
  height: 100%;
  top: 0;
}

.access-grid .grid-line.vertical:nth-child(1) { left: 33%; }
.access-grid .grid-line.vertical:nth-child(2) { right: 33%; }

.access-grid .grid-line.horizontal {
  width: 100%;
  height: 1px;
  left: 0;
  top: 50%;
}

.access-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.access-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-thin);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: var(--font-primary);
}

.access-title .title-line {
  display: block;
}

.access-title .title-line.accent {
  background: linear-gradient(135deg, #ffffff, #00ffff);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Form Container */
.access-form-container {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-12);
  position: relative;
}

.form-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: #000000;
  border: 1px solid rgba(0, 255, 255, 0.3);
}

.badge-icon {
  font-size: var(--text-sm);
  color: #00ffff;
}

.form-badge .badge-text {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: #00ffff;
  font-family: var(--font-primary);
}

/* Form Fields */
.access-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-field {
  position: relative;
}

.field-label {
  display: block;
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.1em;
  color: var(--color-tertiary);
  margin-bottom: var(--space-2);
  font-family: var(--font-primary);
}

.field-input {
  width: 100%;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.02);
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-primary);
  font-size: var(--text-base);
  font-family: var(--font-secondary);
  transition: all var(--transition-base);
}

.field-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  border-bottom-color: #00ffff;
}

.field-border {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: #00ffff;
  transition: width var(--transition-base);
}

.field-input:focus ~ .field-border {
  width: 100%;
}

/* Custom Select Dropdown Styling */
.form-field.select {
  position: relative;
}

.form-field.select::after {
  content: '';
  position: absolute;
  right: var(--space-4);
  bottom: 18px;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--color-tertiary);
  pointer-events: none;
  transition: all var(--transition-base);
}

.form-field.select:hover::after {
  border-top-color: var(--color-secondary);
}

.form-field.select .field-input {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: var(--space-10);
  cursor: pointer;
  background-image: none;
}

.form-field.select .field-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  border-bottom-color: #00ffff;
}

.form-field.select:focus-within::after {
  border-top-color: #00ffff;
  transform: translateY(-2px);
}

/* Style the option elements */
.form-field.select .field-input option {
  background: #0a0a0a;
  color: var(--color-primary);
  padding: var(--space-2);
}

/* Custom Select Implementation */
.form-field.custom-select {
  position: relative;
}

.select-wrapper {
  position: relative;
  width: 100%;
}

.select-display {
  width: 100%;
  padding: var(--space-4) 0;
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: var(--text-base);
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-base);
  outline: none;
}

.select-display:hover .select-value,
.select-display:focus .select-value {
  color: var(--color-accent-bright);
}

.select-value {
  flex: 1;
  transition: all var(--transition-base);
}

.select-arrow {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.select-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-secondary);
  transition: all var(--transition-base);
}

.select-display:hover .select-arrow svg,
.select-display:focus .select-arrow svg {
  stroke: var(--color-accent);
}

.select-display.open .select-arrow {
  transform: rotate(180deg);
}

.select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: var(--space-2);
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.98) 0%, rgba(10, 10, 10, 0.98) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: 100;
  overflow: hidden;
}

.select-display.open + .select-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.select-option {
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  cursor: pointer;
  transition: all var(--transition-base);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.select-option:last-child {
  border-bottom: none;
}

.select-option:hover {
  background: rgba(0, 102, 255, 0.1);
  padding-left: var(--space-8);
}

.select-option.selected {
  background: rgba(0, 102, 255, 0.2);
  color: var(--color-accent-bright);
}

.option-text {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
}

.option-icon {
  font-size: var(--text-lg);
  opacity: 0.6;
  transition: all var(--transition-base);
}

.select-option:hover .option-icon {
  opacity: 1;
  transform: scale(1.2);
}

/* Submit Button */
.btn-submit-access {
  margin-top: var(--space-8);
  position: relative;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  width: 100%;
}

.btn-submit-access .btn-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: rgba(0, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.btn-submit-access .btn-text {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.1em;
  color: #00ffff;
  font-family: var(--font-primary);
}

.btn-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: #00ffff;
  transition: width 3s ease;
}

.btn-borders {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.btn-borders > div {
  position: absolute;
  background: #00ffff;
  transition: all var(--transition-base);
}

.border-top,
.border-bottom {
  height: 1px;
  width: 0;
  left: 0;
}

.border-top { top: 0; }
.border-bottom { bottom: 0; }

.border-left,
.border-right {
  width: 1px;
  height: 0;
  top: 0;
}

.border-left { left: 0; }
.border-right { right: 0; }

.btn-submit-access:hover .border-top,
.btn-submit-access:hover .border-bottom {
  width: 100%;
}

.btn-submit-access:hover .border-left,
.btn-submit-access:hover .border-right {
  height: 100%;
}

.btn-submit-access:hover .btn-content {
  background: rgba(0, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Form Footer */
.form-footer {
  display: flex;
  justify-content: space-around;
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.item-icon {
  color: #00ff88;
  font-size: var(--text-sm);
}

.item-text {
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
  color: var(--color-secondary);
  font-family: var(--font-primary);
}

/* Access Stats */
.access-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.access-stats .stat-item {
  text-align: center;
}

.access-stats .stat-number {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-thin);
  color: #00ffff;
  font-family: var(--font-mono);
}

.access-stats .stat-label {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  color: var(--color-tertiary);
  font-family: var(--font-primary);
  margin-top: var(--space-2);
}

.access-stats .stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
}

/* =========================================
   Footer
   ========================================= */

.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.footer-logo .logo-text {
  font-size: var(--text-base);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.3em;
  color: var(--color-secondary);
}

.footer-links {
  display: flex;
  gap: var(--space-8);
}

.footer-link {
  color: var(--color-tertiary);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-secondary);
}

.footer-copy {
  color: var(--color-tertiary);
  font-size: var(--text-sm);
}

/* =========================================
   Animations
   ========================================= */

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroLineSlide {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 0.5;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) translateY(-8px);
  }
}

/* =========================================
   Responsive Design
   ========================================= */

@media (max-width: 768px) {
  .nav-content {
    padding: 0 var(--space-4);
  }
  
  .nav-menu {
    display: none;
  }
  
  .hero-content {
    padding: 0 var(--space-4);
  }
  
  .section-content {
    padding: 0 var(--space-4);
  }
  
  .overview-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .platform-features {
    grid-template-columns: 1fr;
  }
  
  .demo-controls {
    flex-direction: column;
    align-items: center;
  }
  
  .demo-stats {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .form-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .form-input {
    min-width: auto;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: clamp(3rem, 6vw, 6rem);
  }
  
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
}

/* =========================================
   Utility Classes
   ========================================= */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.no-scroll {
  overflow: hidden;
}

/* =========================================
   Loading Screen - Hide After Load
   ========================================= */

.loading-screen.loaded {
  opacity: 0;
  pointer-events: none;
}

/* =========================================
   Performance Optimizations
   ========================================= */

.will-change-transform {
  will-change: transform;
}

.gpu-layer {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-indicator {
    animation: none;
  }
}