/* ============================================
   PAAVS - Global Styles
   Premium dark theme with glassmorphism
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Colors - Deep Void Theme (Dark Mode Default) */
  --color-bg: #020617;
  /* Slate 950 */
  --color-bg-elevated: #0f172a;
  /* Slate 900 */
  --color-bg-card: rgba(15, 23, 42, 0.6);
  --color-bg-glass: rgba(255, 255, 255, 0.03);
  --color-bg-glass-heavy: rgba(15, 23, 42, 0.8);

  --color-text: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;

  /* Holographic Accents */
  --color-primary: #8b5cf6;
  --color-secondary: #06b6d4;
  --color-accent: #10b981;
  --color-danger: #ef4444;

  --color-border: rgba(148, 163, 184, 0.1);
  --color-border-light: rgba(148, 163, 184, 0.2);
  --color-border-hover: rgba(148, 163, 184, 0.3);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #a78bfa 0%, #22d3ee 100%);
  --gradient-glow: conic-gradient(from 180deg at 50% 50%, #2a8af6 0deg, #a853ba 180deg, #e92a67 360deg);
  --gradient-text: linear-gradient(to right, #c084fc, #6366f1, #3b82f6);
  --gradient-dark: linear-gradient(to bottom, transparent, rgba(2, 6, 23, 0.8));

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-section: 8rem;

  /* Typography */
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-heading: 'Outfit', sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 3rem;
  --font-size-5xl: 4rem;
  --font-size-6xl: 5rem;
  --font-size-7xl: 6rem;

  /* Borders & Shadows */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
  --shadow-inner: inset 0 0 0 1px rgba(255, 255, 255, 0.05);

  /* 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);

  /* Unified Variable Aliases (cross-site compatibility) */
  --bg-app: var(--color-bg);
  --bg-glass: var(--color-bg-card);
  --text-primary: var(--color-text);
  --text-secondary: var(--color-text-secondary);
  --accent-primary: var(--color-primary);
  --accent-secondary: var(--color-secondary);
}

/* Light Theme - Frosted Aerogel */
:root.light,
:root[data-theme='light'],
[data-theme='light'] {
  --color-bg: #f5f7fa;
  --color-bg-elevated: #ffffff;
  --color-bg-card: rgba(255, 255, 255, 0.85);
  --color-bg-glass: rgba(255, 255, 255, 0.7);
  --color-bg-glass-heavy: rgba(255, 255, 255, 0.95);

  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;

  --color-primary: #6366f1;
  --color-secondary: #0891b2;
  --color-accent: #059669;

  --color-border: rgba(100, 116, 139, 0.25);
  --color-border-light: rgba(100, 116, 139, 0.35);
  --color-border-hover: rgba(100, 116, 139, 0.5);

  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #0891b2 100%);
  --gradient-text: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #0891b2 100%);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 50px rgba(99, 102, 241, 0.2);
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  position: relative;
}

/* Noise Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.15;
  mix-blend-mode: overlay;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.gradient-text {
  background: var(--gradient-text);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #0f172a !important;
  /* Force dark text (Slate 900) for contrast */
  text-decoration: none !important;
  font-weight: 700;
  box-shadow: var(--shadow-md), 0 0 20px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(139, 92, 246, 0.5);
}

.btn-ghost {
  background: var(--color-bg-glass);
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-base);
}

.btn-full {
  width: 100%;
}

.btn-arrow {
  width: 1rem;
  height: 1rem;
  transition: transform var(--transition-fast);
}

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

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

[data-theme='light'] .nav.scrolled {
  background: rgba(255, 255, 255, 0.85);
  border-bottom-color: var(--color-border-light);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.logo-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 8px;
  color: white;
}

.logo-svg {
  width: 20px;
  height: 20px;
}

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

.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-text);
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-4xl) 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--color-primary);
  top: -200px;
  right: -100px;
  opacity: 0.15;
}

.hero-glow-2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -100px;
  left: -100px;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.hero-title {
  font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
  font-weight: 800;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* Blog Infographics */
.infographic-container {
  margin: 3rem 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.infographic {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.infographic:hover {
  transform: scale(1.02);
}


/* ============================================
   Section Styles
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.section-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */
.features {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-slow);
}

.feature-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.feature-card-highlight {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
  border-color: rgba(139, 92, 246, 0.2);
}

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

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

.feature-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.feature-tag {
  display: inline-block;
  margin-top: var(--space-lg);
  padding: var(--space-xs) var(--space-md);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-success);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing {
  padding: var(--space-4xl) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-slow);
}

.pricing-card:hover {
  border-color: var(--color-border-light);
}

.pricing-card-featured {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: white;
}

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

.pricing-name {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.pricing-description {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

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

.price-amount {
  font-size: var(--font-size-4xl);
  font-weight: 800;
}

.price-period {
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.check-icon {
  width: 16px;
  height: 16px;
  stroke: var(--color-success);
  flex-shrink: 0;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.step-card {
  flex: 1;
  max-width: 300px;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  text-align: center;
  transition: all var(--transition-slow);
}

.step-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
}

.step-number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.step-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.step-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.step-connector {
  color: var(--color-text-muted);
}

.step-connector svg {
  width: 24px;
  height: 24px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
  padding: var(--space-4xl) 0;
}

.cta-card {
  position: relative;
  padding: var(--space-4xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  text-align: center;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--gradient-glow);
  filter: blur(80px);
  opacity: 0.3;
}

.cta-content {
  position: relative;
}

.cta-title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
  margin-bottom: var(--space-md);
}

.cta-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--space-4xl) 0 var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-md);
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer-links h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.footer-links a {
  display: block;
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-motto {
  color: var(--color-text-secondary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-highlight {
    grid-column: span 1;
  }

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

  .steps-grid {
    flex-direction: column;
  }

  .step-connector {
    transform: rotate(90deg);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {

  .nav-links,
  .nav-actions {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
  }

  .nav-links.active,
  .nav-actions.active {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .nav-actions.active {
    border-top: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding-top: 120px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .step-card {
    max-width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}