/* ============================================
   warqLess - Aesthetic Redesign
   Modern, Premium Digital Receipt Experience
   ============================================ */

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Primary Brand Palette */
  --color-primary: #6366F1;
  --color-primary-light: #818CF8;
  --color-primary-dark: #4F46E5;
  --color-primary-gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #A855F7 100%);
  
  /* Secondary Colors */
  --color-secondary: #06B6D4;
  --color-secondary-light: #67E8F9;
  --color-accent: #F59E0B;
  --color-accent-light: #FCD34D;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Neutral Scale - Light Mode */
  --color-void: #0F0F23;
  --color-slate-900: #1E1B4B;
  --color-slate-800: #312E81;
  --color-slate-700: #4338CA;
  --color-slate-600: #4B5563;
  --color-slate-500: #6B7280;
  --color-slate-400: #9CA3AF;
  --color-slate-300: #D1D5DB;
  --color-slate-200: #E5E7EB;
  --color-slate-100: #F3F4F6;
  --color-slate-50: #F9FAFB;
  --color-white: #FFFFFF;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-bg-dark: rgba(15, 15, 35, 0.8);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-border-dark: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  --shadow-glow-purple: 0 0 60px rgba(139, 92, 246, 0.4);
  
  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.65vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
  
  /* 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;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;
  
  /* 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);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-popover: 400;
  --z-tooltip: 500;
}

/* Dark Mode Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: var(--color-void);
    --color-surface: var(--color-slate-900);
    --color-surface-elevated: var(--color-slate-800);
    --color-text: var(--color-white);
    --color-text-secondary: var(--color-slate-400);
    --color-text-muted: var(--color-slate-500);
    --glass-bg: var(--glass-bg-dark);
    --glass-border: var(--glass-border-dark);
  }
}

/* Light Mode (Default) */
:root {
  --color-background: var(--color-slate-50);
  --color-surface: var(--color-white);
  --color-surface-elevated: var(--color-slate-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-600);
  --color-text-muted: var(--color-slate-400);
}

/* ============================================
   Base Styles & Reset
   ============================================ */
*, *::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-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-background);
  overflow-x: hidden;
}

/* Selection Styling */
::selection {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-slate-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-slate-400);
}

/* ============================================
   Layout & Container
   ============================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ============================================
   Background Effects
   ============================================ */
.ambient-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  pointer-events: none;
  z-index: -1;
}

.ambient-glow--primary {
  background: var(--color-primary);
  top: -200px;
  right: -200px;
}

.ambient-glow--secondary {
  background: var(--color-secondary);
  bottom: 20%;
  left: -200px;
}

.ambient-glow--accent {
  background: var(--color-accent);
  bottom: -200px;
  right: 20%;
}

/* Gradient Mesh Background */
.gradient-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* ============================================
   Typography
   ============================================ */
.display-text {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-1 {
  font-size: var(--text-5xl);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.heading-2 {
  font-size: var(--text-4xl);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.heading-3 {
  font-size: var(--text-3xl);
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
}

.heading-4 {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
}

.body-large {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.body-text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-secondary);
}

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

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition: var(--transition-base);
}

.header--scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-3) 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.logo img {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow);
}

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

/* Navigation */
.nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

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

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

/* Language Selector */
.language-selector {
  position: relative;
}

.language-selector select {
  appearance: none;
  background: var(--color-surface);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-10) var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition-fast);
}

.language-selector::after {
  content: '▼';
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.6rem;
  color: var(--color-text-muted);
  pointer-events: none;
}

.language-selector select:hover,
.language-selector select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--space-24) + 80px) 0 var(--space-24);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-gradient);
  background-size: 200% 200%;
  animation: gradientShift 5s ease infinite;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-6);
}

.hero-title {
  margin-bottom: var(--space-6);
}

.hero-title .gradient-word {
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 540px;
}

/* CTA Buttons */
.cta-group {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.2) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--color-primary-gradient);
  background-size: 200% 200%;
  color: var(--color-white);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-purple);
  background-position: 100% 0;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-slate-200);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Hero Image / Phone Mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 1s ease-out 0.2s backwards;
}

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: var(--color-void);
  border-radius: 48px;
  padding: 12px;
  box-shadow: 
    0 0 0 2px var(--color-slate-700),
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    var(--shadow-glow);
  transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
  transition: transform var(--transition-slow);
}

.phone-mockup:hover {
  transform: perspective(1000px) rotateY(-5deg) rotateX(2deg) scale(1.02);
}

.phone-notch {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: var(--color-void);
  border-radius: var(--radius-full);
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--color-slate-900) 0%, var(--color-void) 100%);
  border-radius: 40px;
  overflow: hidden;
  position: relative;
}

.phone-content {
  padding: 50px 20px 20px;
}

.phone-chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  padding: 12px 16px;
  border-radius: 20px;
  font-size: 14px;
  max-width: 85%;
  animation: messageSlide 0.5s ease-out backwards;
}

.chat-bubble--received {
  background: var(--color-slate-800);
  color: var(--color-white);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-bubble--sent {
  background: var(--color-primary);
  color: var(--color-white);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chat-bubble:nth-child(1) { animation-delay: 0.5s; }
.chat-bubble:nth-child(2) { animation-delay: 0.8s; }
.chat-bubble:nth-child(3) { animation-delay: 1.1s; }
.chat-bubble:nth-child(4) { animation-delay: 1.4s; }

.phone-receipt-preview {
  margin-top: 20px;
  padding: 16px;
  background: var(--color-white);
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.receipt-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--color-slate-200);
}

.receipt-logo {
  width: 40px;
  height: 40px;
  background: var(--color-primary-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.receipt-logo svg {
  width: 24px;
  height: 24px;
  color: var(--color-white);
}

.receipt-store {
  font-weight: 600;
  color: var(--color-slate-900);
  font-size: 14px;
}

.receipt-date {
  font-size: 12px;
  color: var(--color-slate-500);
}

.receipt-amount {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-success);
  text-align: right;
}

/* Floating Elements */
.float-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

.float-card--1 {
  top: 10%;
  right: -40px;
  animation-delay: 0s;
}

.float-card--2 {
  bottom: 20%;
  left: -60px;
  animation-delay: -3s;
}

.float-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-gradient);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.float-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-white);
}

.float-card__text {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

/* ============================================
   Features Section
   ============================================ */
.features {
  padding: var(--space-24) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-label {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: all var(--transition-slow);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--color-primary-gradient);
  transform: scale(1.1);
}

.feature-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.feature-card:hover .feature-icon {
  color: var(--color-white);
}

.feature-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

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

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
  padding: var(--space-24) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.03) 50%, transparent 100%);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.steps-container::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  opacity: 0.3;
}

.step {
  position: relative;
  text-align: center;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--color-surface);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto var(--space-6);
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.step:hover .step-number {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

.step-content {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.step:hover .step-content {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.step-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.step-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.step-description {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

/* ============================================
   Download Section
   ============================================ */
.download {
  padding: var(--space-24) 0;
  position: relative;
  overflow: hidden;
}

.download-container {
  background: var(--color-primary-gradient);
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
  border-radius: var(--radius-3xl);
  padding: var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.download-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.download-title {
  color: var(--color-white);
  margin-bottom: var(--space-4);
  position: relative;
}

.download-description {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  position: relative;
}

.app-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  position: relative;
}

.app-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all var(--transition-base);
}

.app-button:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.app-button svg {
  width: 32px;
  height: 32px;
  color: var(--color-white);
}

.app-button-text {
  text-align: left;
}

.app-button-label {
  display: block;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.app-button-store {
  display: block;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-white);
}

/* ============================================
   About Section
   ============================================ */
.about {
  padding: var(--space-24) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-content {
  max-width: 560px;
}

.about-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.about-visual {
  position: relative;
}

.about-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-void);
  color: var(--color-white);
  padding: var(--space-20) 0 var(--space-8);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
}

.footer-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

.footer-tagline {
  font-size: var(--text-base);
  color: var(--color-slate-400);
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.footer-column h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-6);
  color: var(--color-white);
}

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

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: var(--text-base);
  color: var(--color-slate-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-slate-500);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  font-size: var(--text-sm);
  color: var(--color-slate-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-white);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes messageSlide {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
  }
  50% {
    box-shadow: 0 0 0 20px rgba(99, 102, 241, 0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Scroll Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-visual {
    order: 0;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .cta-group {
    justify-content: center;
  }
  
  .phone-mockup {
    transform: none;
    width: 260px;
    height: 520px;
  }
  
  .phone-mockup:hover {
    transform: scale(1.02);
  }
  
  .float-card {
    display: none;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-content {
    max-width: 100%;
  }
  
  .stats-grid {
    justify-content: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    padding: 100px var(--space-8) var(--space-8);
    transition: right var(--transition-slow);
    z-index: var(--z-modal);
  }
  
  .nav.is-open {
    right: 0;
  }
  
  .nav ul {
    flex-direction: column;
    gap: var(--space-6);
    align-items: flex-start;
  }
  
  .nav-link {
    font-size: var(--text-lg);
  }
  
  .nav-toggle {
    display: flex;
    z-index: calc(var(--z-modal) + 1);
  }
  
  .nav-toggle.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .steps-container {
    grid-template-columns: 1fr;
  }
  
  .steps-container::before {
    display: none;
  }
  
  .step {
    text-align: left;
  }
  
  .step-number {
    margin: 0 0 var(--space-4) 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-top: calc(var(--space-16) + 80px);
  }
  
  .btn {
    width: 100%;
  }
  
  .phone-mockup {
    width: 220px;
    height: 440px;
  }
  
  .download-container {
    padding: var(--space-8);
  }
  
  .app-buttons {
    flex-direction: column;
  }
  
  .app-button {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.visible { display: block; }

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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