/**
 * C4 Universe Enhancements v2.0
 * Beauty + Functionality
 */

/* ========================================
   VARIABLES
   ======================================== */
:root {
  /* Colors */
  --color-phi: #FFD700;
  --color-phi-dim: #B8860B;
  --color-o0: #FF4444;
  --color-o1: #FF8844;
  --color-o2: #44FF88;
  --color-fra-f: #4488FF;
  --color-fra-r: #8844FF;
  --color-fra-a: #FF44AA;
  
  /* Gradients */
  --gradient-hero: radial-gradient(ellipse at center, rgba(255,215,0,0.15) 0%, transparent 70%);
  --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 50%);
  
  /* Shadows */
  --shadow-glow: 0 0 30px rgba(255,215,0,0.3);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-elevated: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========================================
   SKIP LINK
   ======================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-phi);
  color: var(--deep-space);
  padding: 1rem 2rem;
  z-index: 10000;
  font-weight: 600;
  border-radius: 0 0 8px 8px;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
}

/* ========================================
   HERO ENHANCEMENTS
   ======================================== */
.hero-cosmic {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

.hero-cosmic::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

/* Hero Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,215,0,0.1);
  border: 1px solid rgba(255,215,0,0.3);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--color-phi);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.badge-icon {
  font-size: 1rem;
}

/* Hero Title */
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.title-line {
  display: block;
}

.title-line.highlight {
  color: var(--color-phi);
  text-shadow: 0 0 40px rgba(255,215,0,0.3);
}

.title-line.formula {
  font-size: 0.6em;
  font-weight: 500;
  color: rgba(224,224,255,0.7);
  font-family: 'Space Grotesk', monospace;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}

/* Hero Subtitle */
.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(224,224,255,0.8);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-subtitle strong {
  color: var(--star-white);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-phi);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(224,224,255,0.6);
  margin-top: 0.25rem;
}

/* Hero CTAs */
.hero-ctas {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-icon {
  font-size: 1.125rem;
}

.btn-primary {
  background: var(--color-phi);
  color: var(--deep-space);
  box-shadow: 0 4px 16px rgba(255,215,0,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255,215,0,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--star-white);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.3);
}

.btn-ghost {
  background: transparent;
  color: rgba(224,224,255,0.7);
}

.btn-ghost:hover {
  color: var(--star-white);
  background: rgba(255,255,255,0.05);
}

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

/* Hero Verifications */
.hero-verifications {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.verify-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(224,224,255,0.6);
}

.verify-icon {
  width: 16px;
  height: 16px;
  color: var(--color-o2);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.c4-cube-container {
  position: relative;
  width: min(400px, 90vw);
  height: min(400px, 90vw);
  background: radial-gradient(circle at center, rgba(255,215,0,0.05) 0%, transparent 70%);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#c4-cube-canvas {
  width: 100%;
  height: 100%;
}

.cube-controls {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
}

.cube-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--star-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.cube-btn:hover {
  background: rgba(255,255,255,0.2);
}

.cube-labels {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: rgba(224,224,255,0.6);
}

.cube-label {
  position: relative;
  padding-left: 1rem;
}

.cube-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-phi);
  box-shadow: 0 0 10px var(--color-phi);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(224,224,255,0.5);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-base);
}

.scroll-indicator:hover {
  color: var(--star-white);
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ========================================
   APPLICATIONS GRID
   ======================================== */
.applications-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.3) 100%);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.title-eyebrow {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-phi);
  margin-bottom: 0.5rem;
}

.section-title h2,
h2.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--star-white);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.app-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 2rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255,215,0,0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,215,0,0.2);
  box-shadow: var(--shadow-elevated);
}

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

.app-icon {
  width: 48px;
  height: 48px;
  background: rgba(255,215,0,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-phi);
}

.app-icon svg {
  width: 24px;
  height: 24px;
}

.app-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--star-white);
}

.app-description {
  font-size: 0.9375rem;
  color: rgba(224,224,255,0.7);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.app-description strong {
  color: var(--color-phi);
}

.app-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}

.app-features li {
  font-size: 0.875rem;
  color: rgba(224,224,255,0.6);
  padding: 0.25rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.app-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-phi);
}

.app-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-phi);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.app-link:hover {
  gap: 0.5rem;
}

/* ========================================
   NAVIGATOR SECTION
   ======================================== */
.navigator-section {
  padding: 6rem 0;
  background: radial-gradient(ellipse at center, rgba(255,215,0,0.03) 0%, transparent 70%);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: rgba(224,224,255,0.7);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.navigator-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  align-items: start;
}

/* State Display */
.state-display {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 1.5rem;
}

.state-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.state-label {
  font-size: 0.875rem;
  color: rgba(224,224,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.state-coordinates {
  font-family: 'Space Grotesk', monospace;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-phi);
}

.state-description {
  font-size: 0.9375rem;
  color: rgba(224,224,255,0.8);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.state-description strong {
  color: var(--star-white);
  display: block;
  margin-bottom: 0.5rem;
}

.state-metrics {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
}

.metric {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.75rem;
  color: rgba(224,224,255,0.5);
  text-transform: uppercase;
}

.metric-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--star-white);
}

.state-actions {
  display: flex;
  gap: 0.75rem;
}

/* Navigator Controls */
.navigator-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.control-group {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 1.25rem;
  position: relative;
}

.control-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.axis-name {
  width: 24px;
  height: 24px;
  background: var(--color-phi);
  color: var(--deep-space);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.axis-full {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--star-white);
}

.axis-control {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.axis-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--star-white);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.axis-btn:hover {
  background: rgba(255,215,0,0.2);
  border-color: var(--color-phi);
}

.axis-values {
  flex: 1;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.axis-val {
  flex: 1;
  text-align: center;
  padding: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(224,224,255,0.5);
  background: rgba(0,0,0,0.2);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.axis-val.active {
  background: var(--color-phi);
  color: var(--deep-space);
  font-weight: 600;
}

.operator-hint {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.875rem;
  color: rgba(224,224,255,0.4);
}

/* Cube Preview */
.cube-preview {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#nav-cube-canvas {
  width: 100%;
  max-width: 250px;
  height: auto;
}

.cube-legend {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(224,224,255,0.7);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.phi { background: var(--color-phi); box-shadow: 0 0 8px var(--color-phi); }
.dot.current { background: var(--color-o2); }
.dot.target { background: var(--color-fra-r); }

/* ========================================
   FACTS SECTION
   ======================================== */
.facts-section {
  padding: 4rem 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 100%);
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.fact-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.fact-card:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.fact-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.fact-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--star-white);
  margin-bottom: 0.5rem;
}

.fact-text {
  font-size: 0.875rem;
  color: rgba(224,224,255,0.7);
  line-height: 1.5;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-verifications {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .navigator-container {
    grid-template-columns: 1fr;
  }
  
  .cube-preview {
    order: -1;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    gap: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .applications-grid {
    grid-template-columns: 1fr;
  }
  
  .axis-values {
    flex-direction: column;
    gap: 0.25rem;
  }
  
  .axis-val {
    text-align: left;
    padding: 0.375rem 0.75rem;
  }
}

/* Audience Selector */
.audience-selector {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.audience-tab {
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  color: rgba(224,224,255,0.6);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.audience-tab:hover {
  background: rgba(255,255,255,0.1);
  color: var(--star-white);
}

.audience-tab.active {
  background: rgba(255,215,0,0.15);
  border-color: var(--color-phi);
  color: var(--color-phi);
}

.hero-content-view.hidden {
  display: none;
}

.hero-content-view {
  animation: fadeIn 0.4s ease;
}

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


/* ========================================
   LIQUID GLASS INTEGRATION
   Apple iOS 26 / macOS 26 Style
   ======================================== */

/* Apply Liquid Glass to existing components */

/* Navigation - Liquid Glass */
.main-nav {
  background: rgba(10, 10, 18, 0.7);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.main-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 100%
  );
  pointer-events: none;
}

/* Hero Badge - Liquid Glass */
.hero-badge {
  background: rgba(255, 215, 0, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 215, 0, 0.2);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Application Cards - Liquid Glass */
.app-card {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  box-shadow: 
    0 4px 24px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.02);
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(255, 255, 255, 0.06) 0%,
    transparent 50%
  );
  opacity: 0.5;
  pointer-events: none;
}

.app-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    165deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.02) 40%,
    rgba(255, 255, 255, 0.04) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.app-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 215, 0, 0.15);
  transform: translateY(-6px) scale(1.01);
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 0 40px rgba(255, 215, 0, 0.05);
}

.app-icon {
  background: rgba(255, 215, 0, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 215, 0, 0.15);
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.1);
}

/* Buttons - Liquid Glass */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    80% 50% at 50% 0%,
    rgba(255, 255, 255, 0.15) 0%,
    transparent 60%
  );
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.btn:hover::before {
  opacity: 0.8;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.9) 0%,
    rgba(255, 200, 0, 0.95) 100%
  );
  box-shadow: 
    0 4px 16px rgba(255, 215, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 8px 30px rgba(255, 215, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Navigator State Display - Liquid Glass */
.state-display {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.state-metrics {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Cube Container - Liquid Glass */
.c4-cube-container {
  background: radial-gradient(circle at center, rgba(255,215,0,0.05) 0%, transparent 70%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.cube-btn {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}

.cube-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 215, 0, 0.2);
}

/* Audience Tabs - Liquid Glass */
.audience-selector {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.audience-tab {
  border-radius: 100px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.audience-tab:hover {
  background: rgba(255, 255, 255, 0.06);
}

.audience-tab.active {
  background: rgba(255, 215, 0, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 215, 0, 0.2);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.2),
    0 0 20px rgba(255, 215, 0, 0.1);
}

/* Stat Items - Liquid Glass */
.stat-item {
  position: relative;
}

.stat-number {
  background: linear-gradient(135deg, #FFD700 0%, #FFAA00 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.3));
}

/* Footer - Liquid Glass */
.main-footer {
  background: rgba(10, 10, 18, 0.8);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Investor Pitch Card - Liquid Glass */
.investor-pitch {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  box-shadow: 
    0 40px 80px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* Feature Items - Liquid Glass */
.feature-item {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  transition: all 0.3s ease;
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 215, 0, 0.1);
  transform: translateY(-2px);
}

/* Demo Container - Liquid Glass */
.demo-container {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* Responsive Liquid Glass */
@media (max-width: 768px) {
  .main-nav {
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
  }
  
  .app-card {
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
  }
  
  .state-display {
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
  }
}