/* =========================================
   HireMe Landing Page - Styles
   ========================================= */

/* =========================================
   1. CSS Custom Properties (Design System)
   ========================================= */
:root {
  /* Colors - Dark Theme with Amber Accents */
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #111827;
  --color-bg-card: rgba(17, 24, 39, 0.8);
  --color-bg-glass: rgba(255, 255, 255, 0.05);
  
  --color-accent-primary: #f59e0b;
  --color-accent-secondary: #fbbf24;
  --color-accent-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --color-accent-glow: rgba(245, 158, 11, 0.3);
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #9ca3af;
  --color-text-muted: #6b7280;
  
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-accent: rgba(245, 158, 11, 0.3);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', var(--font-primary);
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Spacing */
  --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-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Container */
  --container-max: 1280px;
  --container-padding: var(--space-6);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* =========================================
   3. Utility Classes
   ========================================= */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-20) 0;
}

.section-dark {
  background: var(--color-bg-secondary);
}

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

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

/* =========================================
   4. Typography
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

.section-badge {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

/* =========================================
   5. Buttons
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px var(--color-accent-glow);
}

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

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

/* =========================================
   6. Navigation
   ========================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

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

.logo-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-bg-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

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

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* =========================================
   7. Hero Section
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 60%);
  opacity: 0.4;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--color-bg-primary) 0%, transparent 100%);
  pointer-events: none;
}

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

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: var(--text-6xl);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-title .highlight {
  display: block;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.hero-stats {
  display: flex;
  gap: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent-primary);
}

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

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  position: relative;
  z-index: 2;
}

.phone-frame {
  width: 280px;
  height: 580px;
  background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  border-radius: 40px;
  padding: 12px;
  box-shadow: 
    0 50px 100px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.phone-frame::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 6px;
  background: #000;
  border-radius: var(--radius-full);
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: #0a0e17;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  opacity: 0.6;
  z-index: 1;
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.4; }
}

.floating-card {
  position: absolute;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  z-index: 3;
  animation: float 4s ease-in-out infinite;
}

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

.floating-card-2 {
  bottom: 20%;
  left: 0;
  animation-delay: 1s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.floating-card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.floating-card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-bg-primary);
}

.floating-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.floating-card-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* =========================================
   8. Features Section
   ========================================= */
.features {
  background: var(--color-bg-secondary);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
}

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

.feature-card {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
  background: var(--color-accent-gradient);
}

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

.feature-card:hover .feature-icon svg {
  color: var(--color-bg-primary);
}

.feature-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

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

/* =========================================
   9. Statistics Section
   ========================================= */
.stats {
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, #0f172a 100%);
}

.stats::before,
.stats::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--color-accent-glow);
  filter: blur(100px);
  opacity: 0.3;
}

.stats::before {
  top: -100px;
  left: -100px;
}

.stats::after {
  bottom: -100px;
  right: -100px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  position: relative;
  z-index: 1;
}

.stat-card {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

.stat-icon {
  width: 64px;
  height: 64px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.stat-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-bg-primary);
}

.stat-value {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.stat-value span {
  color: var(--color-accent-primary);
}

.stat-label {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

/* =========================================
   10. How It Works Section
   ========================================= */
.how-it-works {
  background: var(--color-bg-secondary);
}

.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: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary), var(--color-accent-primary));
  opacity: 0.3;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-bg-primary);
  margin: 0 auto var(--space-6);
  position: relative;
  box-shadow: var(--shadow-glow);
}

.step-number::after {
  content: '';
  position: absolute;
  inset: -8px;
  border: 2px dashed var(--color-accent-primary);
  border-radius: var(--radius-full);
  opacity: 0.3;
}

.step-icon {
  width: 100px;
  height: 100px;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
}

.step-icon svg {
  width: 48px;
  height: 48px;
  color: var(--color-accent-primary);
}

.step-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.step-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 280px;
  margin: 0 auto;
}

/* =========================================
   11. Testimonials Section
   ========================================= */
.testimonials {
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  opacity: 0.2;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  position: relative;
  z-index: 1;
}

.testimonial-card {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-size: 80px;
  font-family: Georgia, serif;
  color: var(--color-accent-primary);
  opacity: 0.2;
  line-height: 1;
}

.testimonial-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  position: relative;
  z-index: 1;
}

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

.testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--color-accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-bg-primary);
}

.testimonial-info h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}

.testimonial-info p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.testimonial-rating {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.testimonial-rating svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent-primary);
}

/* =========================================
   12. CTA Section
   ========================================= */
.cta {
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}

.cta-container {
  background: var(--color-accent-gradient);
  border-radius: var(--radius-2xl);
  padding: var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-container::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 50%);
  animation: rotate 20s linear infinite;
}

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

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: var(--text-4xl);
  color: var(--color-bg-primary);
  margin-bottom: var(--space-4);
}

.cta-text {
  font-size: var(--text-lg);
  color: rgba(10, 14, 23, 0.8);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.store-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.store-btn svg {
  width: 32px;
  height: 32px;
}

.store-btn-text {
  text-align: left;
}

.store-btn-text small {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.store-btn-text span {
  font-size: var(--text-lg);
  font-weight: 600;
}

/* =========================================
   13. Footer
   ========================================= */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}

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

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-accent-gradient);
  border-color: transparent;
}

.social-link svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.social-link:hover svg {
  color: var(--color-bg-primary);
}

.footer-column h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

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

.footer-column ul a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-column ul a:hover {
  color: var(--color-accent-primary);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

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

.footer-legal a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

/* =========================================
   14. Animations
   ========================================= */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }
.fade-in-delay-6 { transition-delay: 0.6s; }

/* =========================================
   15. Mobile Menu
   ========================================= */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 14, 23, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-8);
}

.mobile-menu a {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--color-accent-primary);
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.mobile-menu-close svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-primary);
}

/* =========================================
   16. Responsive Design
   ========================================= */
@media (max-width: 1024px) {
  :root {
    --text-6xl: 2.75rem;
    --text-5xl: 2.25rem;
    --text-4xl: 1.875rem;
  }
  
  .features-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-4);
    --text-6xl: 2rem;
    --text-5xl: 1.75rem;
    --text-4xl: 1.5rem;
    --text-3xl: 1.375rem;
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .nav-links,
  .nav-cta .btn {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
  
  .hero {
    min-height: auto;
    padding-top: 80px;
    padding-bottom: var(--space-8);
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-6);
  }
  
  .hero-content {
    max-width: 100%;
    order: 2;
  }
  
  .hero-badge {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    margin-bottom: var(--space-4);
  }
  
  .hero-title {
    font-size: 1.75rem;
    margin-bottom: var(--space-4);
    line-height: 1.2;
  }
  
  .hero-description {
    font-size: var(--text-base);
    max-width: 100%;
    margin: 0 auto var(--space-6);
    padding: 0 var(--space-2);
  }
  
  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .hero-stats {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-6);
    padding-top: var(--space-6);
  }
  
  .hero-stat {
    text-align: center;
    min-width: 80px;
  }
  
  .hero-stat-value {
    font-size: var(--text-2xl);
  }
  
  .hero-stat-label {
    font-size: var(--text-xs);
  }
  
  .hero-visual {
    order: 1;
    margin-bottom: var(--space-4);
  }
  
  .phone-frame {
    width: 200px;
    height: 420px;
    border-radius: 32px;
    padding: 8px;
  }
  
  .phone-frame::before {
    width: 60px;
    height: 5px;
    top: 14px;
  }
  
  .phone-screen {
    border-radius: 26px;
  }
  
  .phone-glow {
    width: 280px;
    height: 280px;
  }
  
  .floating-card {
    display: none;
  }
  
  /* Section titles */
  .section-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-3);
    padding: 0 var(--space-2);
  }
  
  .section-subtitle {
    font-size: var(--text-base);
    margin-bottom: var(--space-8);
    padding: 0 var(--space-2);
  }
  
  .section-badge {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
  }
  
  .features-grid,
  .steps-container,
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .feature-card {
    padding: var(--space-6);
  }
  
  .feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
  }
  
  .feature-icon svg {
    width: 24px;
    height: 24px;
  }
  
  .feature-title {
    font-size: var(--text-lg);
  }
  
  .feature-text {
    font-size: var(--text-sm);
  }
  
  .steps-container::before {
    display: none;
  }
  
  .step-number {
    width: 60px;
    height: 60px;
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
  }
  
  .step-number::after {
    inset: -6px;
  }
  
  .step-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-4);
  }
  
  .step-icon svg {
    width: 36px;
    height: 36px;
  }
  
  .step-title {
    font-size: var(--text-lg);
  }
  
  .step-text {
    font-size: var(--text-sm);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  
  .stat-card {
    padding: var(--space-4);
  }
  
  .stat-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-3);
  }
  
  .stat-icon svg {
    width: 24px;
    height: 24px;
  }
  
  .stat-value {
    font-size: var(--text-2xl);
  }
  
  .stat-label {
    font-size: var(--text-sm);
  }
  
  .testimonial-card {
    padding: var(--space-6);
  }
  
  .testimonial-text {
    font-size: var(--text-sm);
    line-height: 1.7;
  }
  
  .testimonial-avatar {
    width: 48px;
    height: 48px;
    font-size: var(--text-lg);
  }
  
  .testimonial-info h4 {
    font-size: var(--text-sm);
  }
  
  .testimonial-rating svg {
    width: 14px;
    height: 14px;
  }
  
  .cta-container {
    padding: var(--space-6);
    border-radius: var(--radius-xl);
  }
  
  .cta-title {
    font-size: 1.375rem;
    margin-bottom: var(--space-3);
  }
  
  .cta-text {
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }
  
  .store-btn {
    width: 100%;
    max-width: 260px;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
  }
  
  .store-btn svg {
    width: 28px;
    height: 28px;
  }
  
  .store-btn-text span {
    font-size: var(--text-base);
  }
  
  .footer {
    padding: var(--space-10) 0 var(--space-6);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
  }
  
  .footer-brand .logo {
    justify-content: center;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .footer-column h4 {
    margin-bottom: var(--space-4);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
  
  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: var(--space-3);
  }
  
  .section {
    padding: var(--space-10) 0;
  }
  
  .hero {
    padding-top: 70px;
  }
  
  .hero-title {
    font-size: 1.5rem;
  }
  
  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  
  .hero-stat {
    flex: 1;
    min-width: 70px;
  }
  
  .phone-frame {
    width: 180px;
    height: 380px;
    border-radius: 28px;
  }
  
  .phone-frame::before {
    width: 50px;
    height: 4px;
    top: 12px;
  }
  
  .phone-screen {
    border-radius: 22px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }
  
  .stat-card {
    padding: var(--space-3);
  }
  
  .stat-value {
    font-size: var(--text-xl);
  }
  
  .stat-label {
    font-size: var(--text-xs);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
  }
  
  .section-title {
    font-size: 1.25rem;
  }
  
  .section-subtitle {
    font-size: var(--text-sm);
  }
  
  .cta-title {
    font-size: 1.25rem;
  }
}

@media (max-width: 360px) {
  :root {
    --container-padding: var(--space-2);
  }
  
  .hero-title {
    font-size: 1.375rem;
  }
  
  .hero-buttons .btn {
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-4);
  }
  
  .phone-frame {
    width: 160px;
    height: 340px;
    border-radius: 24px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    gap: var(--space-3);
  }
  
  .hero-stat-value {
    font-size: var(--text-xl);
  }
}