/* Modern Version B - CSS */

:root {
  /* Brand Colors */
  --primary: #02c6fe;
  --primary-hover: #0199c7;
  --secondary: #902cde;
  --secondary-hover: #7d25b2;
  
  --mono-1: #ffffff;
  --mono-2: #273542;
  --mono-3: #1e2a35;
  --mono-4: #0f1419;
  --mono-5: #070a0d;
  
  --gray-light: #a0aec0;
  --gray: #718096;
  --gray-dark: #4a5568;
  
  --success: #48bb78;
  --error: #f56565;
  
  /* Modern Styles */
  --br: 20px;
  --br-sm: 12px;
  --br-lg: 28px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  --gradient-primary: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  --gradient-mesh: radial-gradient(at 0% 0%, rgba(144, 44, 222, 0.15) 0px, transparent 50%),
                   radial-gradient(at 100% 0%, rgba(2, 198, 254, 0.15) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, rgba(144, 44, 222, 0.15) 0px, transparent 50%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--mono-5);
  color: var(--mono-1);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 20, 25, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 0;
}

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

.logo {
  height: 36px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-light);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.btn-nav {
  background: var(--gradient-primary);
  color: var(--mono-1);
  padding: 0.625rem 1.25rem;
  border-radius: var(--br-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(2, 198, 254, 0.3);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-glass {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--br-sm);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--mono-1);
  box-shadow: 0 4px 14px rgba(2, 198, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 198, 254, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--mono-1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--mono-1);
}

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

.btn-large {
  padding: 1.125rem 2.25rem;
  font-size: 1.1rem;
}

/* Hero */
.hero {
  padding: 8rem 0 6rem;
  position: relative;
  background: var(--gradient-mesh);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(2, 198, 254, 0.1);
  border: 1px solid rgba(2, 198, 254, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.hero-badge i {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5.5rem);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

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

.hero-subtitle {
  font-size: 1.375rem;
  color: var(--gray-light);
  margin-bottom: 2.5rem;
  max-width: 700px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding: 2rem 0;
}

.stat {
  text-align: left;
}

.stat-value {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--gray-light);
  font-size: 0.95rem;
  font-weight: 500;
}

/* Demo Window */
.hero-demo {
  margin-top: 4rem;
}

.demo-window {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--br-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.window-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-dots {
  display: flex;
  gap: 0.5rem;
}

.window-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gray-dark);
}

.window-title {
  color: var(--gray-light);
  font-size: 0.9rem;
  font-weight: 500;
}

.window-content {
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.demo-qr {
  background: white;
  padding: 2rem;
  border-radius: var(--br);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 350px;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.6s ease-in-out;
}

.demo-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.control-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--br-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--gray-light);
  font-weight: 500;
}

.control-item i {
  color: var(--primary);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  color: var(--gray-light);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--gray-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Features */
.features {
  padding: 8rem 0;
  background: var(--mono-4);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--br);
  padding: 2.5rem;
  transition: all 0.3s;
  position: relative;
}

.feature-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-lg);
}

.free-feature {
  border-color: rgba(72, 187, 120, 0.3);
}

.pro-feature {
  border-color: rgba(2, 198, 254, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--br-sm);
  background: rgba(72, 187, 120, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-icon i {
  width: 28px;
  height: 28px;
  color: var(--success);
}

.feature-icon.pro {
  background: rgba(2, 198, 254, 0.1);
}

.feature-icon.pro i {
  color: var(--primary);
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-description {
  color: var(--gray-light);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.feature-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.feature-badge.free {
  background: rgba(72, 187, 120, 0.1);
  color: var(--success);
  border: 1px solid rgba(72, 187, 120, 0.3);
}

.feature-badge.pro {
  background: rgba(2, 198, 254, 0.1);
  color: var(--primary);
  border: 1px solid rgba(2, 198, 254, 0.3);
}

/* Comparison */
.comparison {
  padding: 8rem 0;
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.comparison-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--br);
  padding: 2.5rem;
  position: relative;
}

.comparison-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), 0 20px 40px rgba(2, 198, 254, 0.15);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--mono-1);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-header {
  margin-bottom: 2rem;
}

.card-header h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.price-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: var(--br-sm);
  font-size: 1.25rem;
  font-weight: 700;
}

.price-tag.bad {
  background: rgba(245, 101, 101, 0.1);
  color: var(--error);
  border: 1px solid rgba(245, 101, 101, 0.3);
}

.price-tag.good {
  background: rgba(72, 187, 120, 0.1);
  color: var(--success);
  border: 1px solid rgba(72, 187, 120, 0.3);
}

.features-list {
  list-style: none;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 1.05rem;
}

.features-list li i {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.features-list li.good i {
  color: var(--success);
}

.features-list li.bad {
  color: var(--gray);
  opacity: 0.6;
}

.features-list li.bad i {
  color: var(--error);
}

.features-list li.pro i {
  color: var(--primary);
}

/* Pricing */
.pricing {
  padding: 8rem 0;
  background: var(--mono-4);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--br-lg);
  padding: 3rem;
  position: relative;
  transition: all 0.3s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), 0 20px 40px rgba(2, 198, 254, 0.15);
}

.featured-label {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--mono-1);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-header {
  text-align: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 2rem;
}

.pricing-header h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.pricing-price .amount {
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.pricing-price .period {
  font-size: 1.25rem;
  color: var(--gray-light);
}

.pricing-desc {
  color: var(--gray-light);
  font-size: 1.05rem;
}

/* Annual Savings Badge */
.annual-savings {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(72, 187, 120, 0.1);
  border: 1px solid rgba(72, 187, 120, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  color: var(--success);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 1rem;
}

.annual-savings i {
  width: 16px;
  height: 16px;
}

.annual-savings strong {
  font-weight: 700;
  color: var(--mono-1);
}

.pricing-features {
  margin-bottom: 2rem;
}

.feature-group {
  margin-bottom: 2rem;
}

.feature-group h4 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: var(--gray-light);
}

.feature-group ul {
  list-style: none;
}

.feature-group ul li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0;
  color: var(--mono-1);
}

.feature-group ul li i {
  width: 18px;
  height: 18px;
  color: var(--success);
  flex-shrink: 0;
}

.feature-group.transparency {
  background: rgba(2, 198, 254, 0.05);
  border: 1px solid rgba(2, 198, 254, 0.2);
  border-radius: var(--br-sm);
  padding: 1.5rem;
}

.feature-group.transparency p {
  color: var(--gray-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

.pricing-btn {
  width: 100%;
  justify-content: center;
  margin-bottom: 1rem;
}

.trial-note {
  text-align: center;
  color: var(--gray-light);
  font-size: 0.9rem;
}

/* Final CTA */
.final-cta {
  padding: 8rem 0;
}

.cta-card {
  background: var(--gradient-mesh);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--br-lg);
  padding: 5rem 3rem;
  text-align: center;
}

.cta-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 2rem;
  background: var(--gradient-primary);
  border-radius: var(--br);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cta-icon i {
  width: 40px;
  height: 40px;
  color: var(--mono-1);
}

.cta-title {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.cta-subtitle {
  font-size: 1.375rem;
  color: var(--gray-light);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  padding: 4rem 0 2rem;
  background: var(--mono-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-logo {
  height: 36px;
  margin-bottom: 1rem;
}

.footer-mission {
  color: var(--gray-light);
  line-height: 1.7;
  max-width: 500px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.footer-column h4 {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--mono-1);
}

.footer-column a {
  display: block;
  color: var(--gray-light);
  text-decoration: none;
  padding: 0.5rem 0;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--gray-light);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 968px) {
  .window-content {
    grid-template-columns: 1fr;
  }
  
  .demo-controls {
    flex-direction: row;
  }
  
  .hero-stats {
    gap: 2rem;
  }
  
  .pricing-grid,
  .comparison-cards {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }
  
  .nav-link {
    display: none;
  }
  
  .hero {
    padding: 4rem 0 3rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .window-content {
    padding: 2rem;
  }
  
  .demo-controls {
    flex-direction: column;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .annual-savings {
    font-size: 0.85rem;
    padding: 0.4rem 0.875rem;
  }
}

/* Mobile nav toggle */
.nav-mobile {
  display: none;
  align-items: center;
  gap: 1rem;
}

.btn-nav-mobile {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
}

.hamburger {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 0.5rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: #a0aec0;
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile dropdown menu */
.mobile-menu {
  display: none;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(15, 20, 25, 0.98);
}

.mobile-menu.open {
  display: block;
}

.mobile-link {
  display: block;
  color: #a0aec0;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.875rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: color 0.2s, background 0.2s;
}

.mobile-link:hover {
  color: #02c6fe;
  background: rgba(2, 198, 254, 0.05);
}

@media (max-width: 640px) {
  .nav {
    display: none;
  }

  .nav-mobile {
    display: flex;
  }
}