/* Landing Page CSS - World Class Design */

/* CSS Variables */
:root {
  /* Colors */
  --primary: #667eea;
  --primary-dark: #5a67d8;
  --secondary: #764ba2;
  --background: #0f0f23;
  --surface: #1a1a2e;
  --surface-light: #2d2d44;
  --text-primary: #ffffff;
  --text-secondary: #aaaaaa;
  --text-muted: #888888;
  --accent: #ffd700;
  --success: #10b981;
  --error: #ef4444;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* 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 -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-light);
  z-index: 1000;
  padding: var(--space-sm) 0;
}

.nav-container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: inherit;
}

.nav-logo-image {
  height: 1.5rem;
  width: 1.5rem;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  align-items: center;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 0.25rem;
}

.mobile-menu-toggle span {
  width: 1.5rem;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.2s ease;
}

/* Hero Section */
.hero {
  padding: 8rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  color: var(--primary);
  padding: var(--space-xs) var(--space-md);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

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

.hero-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text-primary {
  color: var(--text-primary);
}

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

.hero-supporting-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-md);
  line-height: 1.4;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  justify-content: center;
  min-width: 200px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-primary.large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.25rem;
}

.btn-primary.hero-btn {
  align-self: flex-start;
}

.btn-arrow {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(2px);
}

.hero-proof {
  display: flex;
  gap: var(--space-lg);
}

.proof-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-mockup {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--surface-light);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: transform 0.3s ease;
}

.hero-mockup:hover {
  transform: perspective(1000px) rotateY(-2deg) rotateX(2deg);
}

.mockup-header {
  background: var(--surface-light);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--surface-light);
}

.mockup-tabs {
  display: flex;
  gap: var(--space-xs);
}

.tab {
  background: var(--surface);
  color: var(--text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.tab.active {
  background: var(--primary);
  color: white;
}

.mockup-content {
  padding: var(--space-lg);
}

.query-bubble {
  background: var(--primary);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  font-size: 0.875rem;
  align-self: flex-end;
  max-width: 80%;
  margin-left: auto;
}

.mockup-responses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.response-column {
  background: var(--background);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.response-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.model-header-content {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.model-logo {
  width: 1rem;
  height: 1rem;
  opacity: 0.8;
}

.response-content {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.response-content.correct {
  color: var(--success);
  font-weight: 600;
}

.typing::after {
  content: '|';
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Social Proof */
.social-proof {
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--surface-light);
}

.social-proof-container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  text-align: center;
}

.social-proof-text {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
}

.logo-carousel {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.logo-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.logo-item svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke-width: 1.5;
}

.logo-item:hover {
  opacity: 1;
}

/* Problem Section */
.problem-section {
  padding: var(--space-lg) 0 var(--space-lg);
}

.problem-content {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-xl);
  line-height: 1.2;
}

.problem-grid,
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.problem-item,
.solution-item {
  text-align: center;
  padding: var(--space-xl);
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--surface-light);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.problem-item:hover,
.solution-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.problem-icon,
.solution-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.problem-item h3,
.solution-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.problem-item p,
.solution-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.transformation-arrow {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: var(--space-3xl) 0;
}

.arrow-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.arrow-text {
  font-weight: 600;
  color: var(--primary);
  font-size: 1.125rem;
}

.arrow-svg {
  width: 4rem;
  height: 1.5rem;
  color: var(--primary);
}

/* Features Section */
.features {
  padding: var(--space-3xl) 0;
  background: var(--surface);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.faq .section-header .section-title {
  margin-bottom: 0;
}

.faq .section-header {
  margin-bottom: var(--space-xl);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.faq .section-subtitle {
  margin-top: 0.625rem;
}

.solution-after .section-title {
  margin-bottom: 0.75rem;
}

.solution-after .section-subtitle {
  margin-top: 0.25rem;
}

.section-subtitle a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid var(--primary);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.section-subtitle a:hover {
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

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

.feature-card {
  background: var(--background);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--surface-light);
  transition: all 0.2s ease;
}

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

.feature-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke-width: 2;
  color: white;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  padding: var(--space-3xl) 0;
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  text-align: left;
}

.step-number {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.step-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Stats Section */
.stats {
  padding: var(--space-3xl) 0;
  background: var(--surface);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

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

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-xs);
  font-family: var(--font-display);
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Testimonials */
.testimonials {
  padding: var(--space-3xl) 0;
}

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

.testimonial-card {
  background: var(--surface);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--surface-light);
  transition: all 0.2s ease;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.testimonial-content {
  margin-bottom: var(--space-lg);
}

.stars {
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.testimonial-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

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

.author-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  overflow: hidden;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.author-title {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Pricing */
.pricing {
  padding: var(--space-3xl) 0;
  background: var(--surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 390px);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
  justify-content: center;
}

.pricing-card {
  background: var(--background);
  border: 1px solid var(--surface-light);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  position: relative;
  transition: all 0.2s ease;
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: var(--space-xs) var(--space-md);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.plan-price {
  margin-bottom: var(--space-sm);
}

.price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
}

.period {
  color: var(--text-secondary);
  font-size: 1rem;
}

.plan-description {
  color: var(--text-secondary);
}

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

.feature {
  padding: var(--space-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.feature:not(.disabled)::before {
  content: "✓";
  color: var(--success);
  font-weight: bold;
  margin-right: var(--space-xs);
}

.feature.disabled {
  color: var(--text-muted);
  opacity: 0.6;
}

.pricing-btn {
  display: block;
  width: 100%;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.pricing-btn.primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
}

.pricing-btn.secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

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

/* FAQ */
.faq {
  padding: var(--space-3xl) 0;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--surface-light);
  margin-bottom: var(--space-lg);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  cursor: pointer;
  transition: color 0.2s ease;
}

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

.faq-question h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform 0.2s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-bottom: var(--space-lg);
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Final CTA */
.final-cta {
  padding: calc(var(--space-3xl) * 0.7) 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.final-cta h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: calc(var(--space-md) * 0.7);
  color: white;
}

.final-cta p {
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  color: rgba(255, 255, 255, 0.9);
}

.final-cta .cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(var(--space-lg) * 0.7);
  margin-bottom: calc(var(--space-sm) * 0.7);
  flex-wrap: wrap;
}

.final-cta .btn-primary {
  background: white;
  color: var(--primary);
}

.final-cta .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: transparent;
  color: white;
  padding: var(--space-md) var(--space-xl);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
  transition: all 0.2s ease;
  cursor: pointer;
  justify-content: center;
  min-width: 200px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.final-cta .cta-pricing {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  font-weight: 600;
  margin: calc(var(--space-sm) * 0.7) 0 calc(var(--space-xl) * 0.7) 0;
  text-align: center;
}

.cta-guarantee {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  margin: 0 0 var(--space-2xl) 0;
  text-align: center;
}

.final-cta .cta-social-proof {
  text-align: center;
}

.final-cta .rating-stars {
  color: #ffd700;
  font-size: 1.5rem;
  margin-bottom: calc(var(--space-sm) * 0.7);
  letter-spacing: 2px;
}

.final-cta .social-stats {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(var(--space-sm) * 0.7);
  flex-wrap: wrap;
}

.stat-divider {
  color: rgba(255, 255, 255, 0.5);
}

/* Footer */
.footer {
  background: var(--surface);
  padding: var(--space-3xl) 0 var(--space-lg);
  border-top: 1px solid var(--surface-light);
}

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

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

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

.footer-logo-image {
  height: 1.5rem;
  width: 1.5rem;
}

.footer-logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--surface-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

.footer-column h4 {
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: var(--space-sm);
  transition: color 0.2s ease;
}

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

.footer-social-link {
  color: var(--text-secondary) !important;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--surface-light);
  text-align: center;
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Navigation */
  .nav-links {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  /* Hero */
  .hero {
    padding: 6rem 0 var(--space-2xl);
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  /* Spacing */
  .container {
    padding: 0 var(--space-md);
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  /* Grids */
  .problem-grid,
  .solution-grid,
  .features-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  /* CTA */
  .final-cta h2 {
    font-size: 2rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .btn-primary.large,
  .btn-secondary.large {
    width: 100%;
    max-width: 280px;
  }
  
  /* Hero proof */
  .hero-proof {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  /* Logo carousel */
  .logo-carousel {
    gap: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .final-cta h2 {
    font-size: 1.75rem;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Scroll animations would be handled by JavaScript */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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