/* XYLO Main Stylesheet */
/* Design System: Prism (Violet + Electric Gold) */

/* ============================================
   CSS Variables (Design Tokens)
   ============================================ */

:root {
  /* Colors - Light Mode */
  --xylo-primary: #8B5CF6;
  --xylo-primary-light: #A78BFA;
  --xylo-primary-dark: #7C3AED;
  --xylo-accent: #FACC15;
  --xylo-accent-light: #FDE68A;
  --xylo-accent-dark: #EAB308;
  --xylo-surface: #F3F1FA;
  --xylo-card: #FBFAFF;
  --xylo-text: #1E1B2E;
  --xylo-text-secondary: #7C7A9B;
  --xylo-success: #10B981;
  --xylo-error: #EF4444;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --spacing-xxxl: 40px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(139, 92, 246, 0.05);
  --shadow-md: 0 4px 12px rgba(139, 92, 246, 0.08);
  --shadow-lg: 0 8px 32px rgba(139, 92, 246, 0.1);
  --shadow-xl: 0 16px 48px rgba(139, 92, 246, 0.15);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --xylo-primary: #A78BFA;
    --xylo-primary-light: #C4B5FD;
    --xylo-primary-dark: #8B5CF6;
    --xylo-accent: #FDE68A;
    --xylo-accent-light: #FEF3C7;
    --xylo-accent-dark: #FACC15;
    --xylo-surface: #0F0F1A;
    --xylo-card: #1A1A2E;
    --xylo-text: #E2E8F0;
    --xylo-text-secondary: #9B99B8;
    
    --shadow-sm: 0 1px 2px rgba(15, 15, 26, 0.2);
    --shadow-md: 0 4px 12px rgba(15, 15, 26, 0.3);
    --shadow-lg: 0 8px 32px rgba(15, 15, 26, 0.4);
    --shadow-xl: 0 16px 48px rgba(15, 15, 26, 0.5);
  }
}

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

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

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

body {
  font-family: var(--font-system);
  font-size: 16px;
  line-height: 1.6;
  color: var(--xylo-text);
  background: var(--xylo-surface);
  overflow-x: hidden;
}

::selection {
  background: var(--xylo-primary);
  color: white;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--xylo-text);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--xylo-text);
  opacity: 0.85;
}

strong {
  font-weight: 600;
  color: var(--xylo-text);
  opacity: 1;
}

/* ============================================
   Glass Morphism
   ============================================ */

.glass-card {
  background: rgba(251, 250, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

@media (prefers-color-scheme: dark) {
  .glass-card {
    background: rgba(26, 26, 46, 0.7);
    border: 1px solid rgba(167, 139, 250, 0.15);
    box-shadow: var(--shadow-lg);
  }
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   Layout
   ============================================ */

.section {
  padding: clamp(3rem, 8vw, 6rem) 0;
  position: relative;
}

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xxxl);
}

.section-title {
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--xylo-text);
  opacity: 0.8;
}

.section-badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--xylo-primary);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ============================================
   Scroll Progress Bar
   ============================================ */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--xylo-primary), var(--xylo-accent));
  z-index: 9999;
  transition: width 100ms linear;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--xylo-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  text-decoration: none;
  z-index: 100;
}

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

/* ============================================
   Navigation
   ============================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 250, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(139, 92, 246, 0.1);
  transition: all var(--transition-base);
}

@media (prefers-color-scheme: dark) {
  .site-nav {
    background: rgba(15, 15, 26, 0.8);
    border-bottom: 1px solid rgba(167, 139, 250, 0.15);
  }
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--xylo-text);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.nav-brand:hover {
  transform: scale(1.05);
}

.nav-icon {
  width: 32px;
  height: 32px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--xylo-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--xylo-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--xylo-primary);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
  width: 100%;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--xylo-card);
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
    display: none;
  }
  
  .nav-links.open {
    display: flex;
  }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-primary-dark));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: 1.125rem;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--spacing-xxxl) 0;
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
  pointer-events: none;
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  pointer-events: none;
  animation: float 20s infinite ease-in-out;
}

.hero-gradient-orb-1 {
  width: 500px;
  height: 500px;
  background: var(--xylo-primary);
  top: -10%;
  right: -10%;
  animation-delay: 0s;
}

.hero-gradient-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--xylo-accent);
  bottom: -10%;
  left: -10%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxxl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-full);
  color: var(--xylo-primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
}

.hero-title {
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--xylo-text), var(--xylo-text));
  -webkit-background-clip: text;
  background-clip: text;
}

.gradient-text {
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xxl);
  line-height: 1.8;
  color: var(--xylo-text);
}

.hero-subtitle strong {
  color: var(--xylo-primary);
  font-weight: 600;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  align-items: center;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  color: var(--xylo-success);
  font-size: 0.875rem;
  font-weight: 600;
}

.hero-visual {
  position: relative;
}

.hero-card {
  padding: 0;
  overflow: hidden;
  animation: float-card 6s infinite ease-in-out;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.mockup-header {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

.mockup-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--xylo-text-secondary);
  opacity: 0.3;
}

.chat-preview {
  padding: var(--spacing-xl);
  min-height: 300px;
}

.chat-message {
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.5s ease-out;
}

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

.chat-message-user {
  background: rgba(139, 92, 246, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md) var(--radius-md) var(--radius-md) 0;
  max-width: 80%;
}

.chat-message-ai {
  background: rgba(250, 204, 21, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md) var(--radius-md) 0 var(--radius-md);
  margin-left: auto;
  margin-right: 0;
}

.chat-message p {
  color: var(--xylo-text);
  margin-bottom: var(--spacing-sm);
}

.chat-message ul {
  margin-left: var(--spacing-lg);
  color: var(--xylo-text);
}

.citation {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--spacing-sm);
  padding: 4px var(--spacing-sm);
  background: rgba(139, 92, 246, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--xylo-primary);
  font-weight: 600;
}

@media (max-width: 968px) {
  .hero .section-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
  }
  
  .hero-visual {
    order: -1;
  }
}

/* ============================================
   Trust Strip
   ============================================ */

.trust-strip {
  background: linear-gradient(135deg, var(--xylo-primary-dark), var(--xylo-primary));
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.trust-text {
  color: white;
  font-size: 1rem;
  margin: 0;
  font-weight: 500;
}

/* ============================================
   Problem Section
   ============================================ */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.problem-card {
  text-align: center;
}

.problem-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--xylo-primary);
}

.problem-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--xylo-text);
  font-weight: 600;
}

.problem-card p {
  color: var(--xylo-text);
  opacity: 0.8;
}

/* ============================================
   Steps Section
   ============================================ */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xxl);
}

.step-card {
  position: relative;
}

.step-number {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--xylo-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.5rem;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.step-card .glass-card {
  text-align: center;
  padding-top: var(--spacing-xxl);
}

.step-icon {
  margin: 0 auto var(--spacing-lg);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--xylo-primary);
}

.gradient-icon {
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.step-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--xylo-text);
  font-weight: 600;
}

.step-card p {
  color: var(--xylo-text);
  opacity: 0.85;
}

/* ============================================
   Chat Demo
   ============================================ */

.demo-container {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-xxl);
}

.demo-document h4 {
  margin-bottom: var(--spacing-lg);
  color: var(--xylo-text);
}

.doc-title {
  font-weight: 600;
  color: var(--xylo-text);
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.doc-excerpt {
  font-size: 0.875rem;
  margin-bottom: var(--spacing-lg);
  color: var(--xylo-text);
  opacity: 0.75;
}

.doc-sections {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.doc-section {
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(139, 92, 246, 0.05);
  border-left: 3px solid var(--xylo-primary);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--xylo-text);
  font-weight: 500;
}

.demo-chat {
  display: flex;
  flex-direction: column;
  min-height: 500px;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  margin-bottom: var(--spacing-lg);
}

.chat-input-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.chat-suggestion {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-full);
  color: var(--xylo-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.chat-suggestion:hover {
  background: rgba(139, 92, 246, 0.2);
  transform: translateY(-2px);
}

@media (max-width: 968px) {
  .demo-container {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Features Grid
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  position: relative;
}

.feature-highlight {
  border: 2px solid var(--xylo-primary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  color: var(--xylo-primary);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--xylo-text);
  font-weight: 600;
}

.feature-card p {
  color: var(--xylo-text);
  opacity: 0.8;
}

.feature-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  padding: 6px var(--spacing-md);
  background: var(--xylo-primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ============================================
   Privacy Section
   ============================================ */

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

.comparison-column h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--xylo-text);
  font-weight: 600;
}

.comparison-column ul {
  list-style: none;
}

.comparison-column li {
  padding: var(--spacing-sm) 0;
  color: var(--xylo-text);
  font-weight: 500;
}

.comparison-good li {
  color: var(--xylo-success);
}

.comparison-bad li {
  color: var(--xylo-text);
  opacity: 0.6;
}

.tech-transparency {
  text-align: center;
}

.tech-transparency h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--xylo-text);
  font-weight: 600;
}

.tech-transparency p {
  color: var(--xylo-text);
  opacity: 0.85;
  line-height: 1.8;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--xylo-primary);
  text-decoration: none;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  transition: gap var(--transition-base);
}

.link-arrow:hover {
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing-card {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  border: 2px solid var(--xylo-primary);
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px var(--spacing-lg);
  background: var(--xylo-primary);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pricing-title {
  margin-bottom: var(--spacing-lg);
}

.pricing-price {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.price-currency {
  font-size: 2rem;
  margin-top: 8px;
  color: var(--xylo-primary);
}

.price-amount {
  font-size: 4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-subtitle {
  margin-bottom: var(--spacing-xxl);
  font-size: 1.125rem;
  color: var(--xylo-text);
  opacity: 0.85;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xxl);
  text-align: left;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  color: var(--xylo-text);
  font-weight: 500;
}

.pricing-features svg {
  color: var(--xylo-success);
  flex-shrink: 0;
}

.pricing-note {
  margin-top: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--xylo-text);
  opacity: 0.75;
}

.pricing-comparison {
  text-align: center;
  margin-top: var(--spacing-xxl);
}

.comparison-text {
  color: var(--xylo-text);
  opacity: 0.85;
  line-height: 2;
  font-weight: 500;
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.faq-item h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
  color: var(--xylo-text);
  font-weight: 600;
}

.faq-item p {
  color: var(--xylo-text);
  opacity: 0.85;
  line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-primary-dark));
  color: white;
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  color: white;
  margin-bottom: var(--spacing-lg);
}

.cta-content p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xxl);
}

.cta-section .btn-primary {
  background: white;
  color: var(--xylo-primary);
  font-weight: 700;
}

.cta-section .btn-primary:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-2px);
}

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

.footer {
  background: var(--xylo-card);
  border-top: 1px solid rgba(139, 92, 246, 0.1);
  padding: var(--spacing-xxxl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-xxl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-tagline {
  color: var(--xylo-text);
  font-style: italic;
  opacity: 0.7;
}

.footer-copyright {
  color: var(--xylo-text);
  font-size: 0.875rem;
  opacity: 0.6;
}

.footer-links h4 {
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
  color: var(--xylo-text);
  font-weight: 600;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--xylo-text);
  opacity: 0.75;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--xylo-primary);
  opacity: 1;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ============================================
   Hero Stats
   ============================================ */

.hero-stats {
  display: flex;
  gap: var(--spacing-xxl);
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--xylo-text);
  opacity: 0.7;
  font-weight: 500;
}

@media (max-width: 768px) {
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
}

/* ============================================
   Testimonials Section
   ============================================ */

.testimonials {
  background: var(--xylo-surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding: var(--spacing-xxl);
}

.testimonial-stars {
  color: var(--xylo-accent);
  font-size: 1.25rem;
  letter-spacing: 2px;
}

.testimonial-text {
  flex: 1;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--xylo-text);
  opacity: 0.9;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--xylo-primary), var(--xylo-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-name {
  font-weight: 600;
  color: var(--xylo-text);
  font-size: 1rem;
}

.author-role {
  font-size: 0.875rem;
  color: var(--xylo-text);
  opacity: 0.7;
}

/* ============================================
   Section CTA
   ============================================ */

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xxxl);
  padding-top: var(--spacing-xxl);
  border-top: 1px solid rgba(139, 92, 246, 0.1);
}

/* ============================================
   FAQ Accordion
   ============================================ */

.faq-accordion {
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  text-align: left;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--xylo-text);
  font-family: var(--font-system);
}

.faq-question:hover {
  color: var(--xylo-primary);
}

.faq-icon {
  flex-shrink: 0;
  color: var(--xylo-primary);
  transition: transform var(--transition-base);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), margin-top var(--transition-slow);
  margin-top: 0;
}

.faq-accordion.active .faq-answer {
  max-height: 500px;
  margin-top: var(--spacing-md);
}

.faq-accordion.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer p {
  padding-top: var(--spacing-sm);
}

/* ============================================
   App Store Button Enhancement
   ============================================ */

.app-store-btn {
  position: relative;
  overflow: hidden;
}

.app-store-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.app-store-btn:hover::before {
  left: 100%;
}

/* ===============================================
   SCREENSHOT CAROUSEL
   =============================================== */

.screenshots {
  overflow: hidden;
}

.screenshot-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 60px;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  align-items: center;
}

.carousel-slide {
  min-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  transition: opacity 0.5s;
  padding: 1rem 0;
}

.carousel-slide.active {
  opacity: 1;
}

.screenshot-frame {
  width: 100%;
  max-width: 400px;
  display: flex;
  justify-content: center;
  perspective: 1000px;
}

.screenshot-device {
  width: 320px;
  height: 640px;
  background: linear-gradient(135deg, rgba(20, 20, 30, 0.95), rgba(30, 30, 45, 0.9));
  border-radius: 40px;
  padding: 12px;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  position: relative;
  transform: rotateY(-5deg);
  transition: transform 0.3s;
}

.screenshot-device:hover {
  transform: rotateY(0deg) scale(1.02);
}

.screenshot-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 30px;
  background: rgba(20, 20, 30, 0.95);
  border-radius: 0 0 20px 20px;
  z-index: 10;
}

.screenshot-content {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(15, 15, 25, 0.8), rgba(25, 25, 40, 0.8));
  border-radius: 30px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 2rem;
}

.screenshot-placeholder svg {
  opacity: 0.4;
}

.screenshot-placeholder p {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
}

.screenshot-info {
  text-align: center;
  max-width: 500px;
}

.screenshot-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: rgba(255, 255, 255, 0.95);
}

.screenshot-info p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  z-index: 10;
}

.carousel-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.5);
  transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
  left: 0;
}

.carousel-next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.carousel-dot.active {
  background: linear-gradient(135deg, #8B5CF6, #FACC15);
  width: 32px;
  border-radius: 5px;
}

.carousel-dot:hover:not(.active) {
  background: rgba(255, 255, 255, 0.4);
}

/* ===============================================
   BEFORE/AFTER COMPARISON
   =============================================== */

.before-after {
  background: linear-gradient(180deg, rgba(15, 15, 25, 0.5), rgba(25, 25, 40, 0.5));
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: start;
  margin-top: 3rem;
}

.comparison-side {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.comparison-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.75rem 1.5rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.9);
  width: fit-content;
}

.comparison-label svg {
  color: #EF4444;
}

.comparison-label-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
}

.comparison-label-success svg {
  color: #22C55E;
}

.comparison-card {
  padding: 2rem;
  height: 100%;
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  list-style: none;
}

.comparison-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.comparison-list svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  opacity: 0.7;
}

.comparison-before .comparison-list svg {
  color: #EF4444;
}

.comparison-after .comparison-list svg {
  color: #22C55E;
}

.comparison-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 5rem;
}

.comparison-arrow {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #8B5CF6, #FACC15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.4);
  animation: pulse 2s infinite;
}

.comparison-arrow svg {
  color: white;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 8px 24px rgba(139, 92, 246, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 12px 32px rgba(139, 92, 246, 0.6); }
}

/* ===============================================
   VIDEO DEMO
   =============================================== */

.video-demo {
  background: linear-gradient(180deg, rgba(25, 25, 40, 0.5), rgba(15, 15, 25, 0.5));
}

.video-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 3rem;
}

.video-wrapper {
  padding: 0;
  overflow: hidden;
  position: relative;
  aspect-ratio: 16/9;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(20, 20, 35, 0.8), rgba(30, 30, 50, 0.8));
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
}

.video-placeholder:hover {
  background: linear-gradient(135deg, rgba(25, 25, 40, 0.9), rgba(35, 35, 55, 0.9));
}

.video-placeholder:hover .video-play-btn {
  transform: scale(1.1);
}

.video-play-btn {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.video-play-btn svg {
  filter: drop-shadow(0 4px 12px rgba(139, 92, 246, 0.5));
}

.video-play-btn circle {
  fill: rgba(139, 92, 246, 0.2);
}

.video-play-btn path {
  fill: #8B5CF6;
}

.video-info {
  text-align: center;
  margin-top: 1rem;
}

.video-duration {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.25rem;
}

.video-description {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.video-embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-embed iframe {
  border-radius: 16px;
}

.video-features {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto;
}

.video-feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.video-feature-item svg {
  color: #8B5CF6;
}

/* ===============================================
   TYPOGRAPHY IMPROVEMENTS (Priority 2)
   =============================================== */

/* Enhanced hierarchy */
.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3, .step-card h3, .feature-card h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.3;
  font-weight: 600;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.6;
}

/* Improved spacing */
.section {
  padding: 120px 0;
}

.section-header {
  margin-bottom: 4rem;
}

/* ===============================================
   RESPONSIVE - PRIORITY 2 SECTIONS
   =============================================== */

@media (max-width: 968px) {
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .comparison-divider {
    padding: 0;
  }

  .comparison-arrow {
    transform: rotate(90deg);
  }

  .screenshot-device {
    width: 280px;
    height: 560px;
  }

  .carousel-btn {
    width: 40px;
    height: 40px;
  }

  .video-features {
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .screenshot-carousel {
    padding: 0 50px;
  }

  .screenshot-device {
    width: 240px;
    height: 480px;
  }

  .carousel-btn {
    width: 36px;
    height: 36px;
  }

  .comparison-list li {
    font-size: 0.9rem;
  }

  .comparison-label {
    font-size: 1rem;
    padding: 0.5rem 1rem;
  }

  .video-features {
    flex-direction: column;
    gap: 1rem;
  }

  .section {
    padding: 80px 0;
  }
}