/* Base Styles */
:root {
  --primary: #6366F1;
  --primary-dark: #4F46E5;
  --primary-light: #818CF8;
  --secondary: #06B6D4;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  
  --bg-white: #FFFFFF;
  --bg-light: #F9FAFB;
  --bg-gray: #F3F4F6;
  
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  
  --border: #E5E7EB;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
  
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.nav-cta {
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* Hero Section */
.hero {
  padding: 8rem 0 4rem;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: -1;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary));
  top: -100px;
  right: -100px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--secondary), var(--success));
  bottom: -50px;
  left: -50px;
  animation-delay: 5s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: linear-gradient(135deg, var(--primary), var(--warning));
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: grid-move 10s linear infinite;
}

@keyframes grid-move {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 999px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

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

.btn-secondary {
  background: var(--bg-gray);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
}

.btn-white {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Hero Visual */
.floating-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
  overflow: hidden;
  animation: float-card 10s ease-in-out infinite;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

.card-header {
  padding: 1rem;
  background: var(--bg-gray);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.5rem;
}

.card-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
}

.card-dot:first-child { background: #EF4444; }
.card-dot:nth-child(2) { background: #F59E0B; }
.card-dot:nth-child(3) { background: #10B981; }

.code-preview {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

.code-preview pre {
  margin: 0;
}

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

.token-keyword { color: #7C3AED; font-weight: 600; }
.token-variable { color: #2563EB; }
.token-number { color: #DC2626; }
.token-string { color: #059669; }
.token-function { color: #D97706; }
.token-comment { color: var(--text-light); font-style: italic; }
.token-success { color: var(--success); display: block; margin-top: 1rem; }

/* Features Section */
.features {
  padding: 5rem 0;
  background: var(--bg-light);
}

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

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
}

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

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

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

/* How It Works */
.how-it-works {
  padding: 5rem 0;
  background: white;
}

.process-timeline {
  margin-top: 4rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
  position: relative;
}

.timeline-item.reverse {
  grid-template-columns: 1fr 1fr auto;
}

.timeline-item.reverse .timeline-number {
  grid-column: 3;
}

.timeline-item.reverse .timeline-content {
  grid-column: 2;
  text-align: right;
}

.timeline-item.reverse .timeline-visual {
  grid-column: 1;
}

.timeline-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.75rem;
  font-weight: 900;
  box-shadow: var(--shadow-xl);
}

.timeline-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.6;
}

.timeline-visual {
  width: 200px;
  height: 200px;
  background: var(--bg-gray);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--primary);
}

/* Security Section */
.security {
  padding: 5rem 0;
  background: var(--bg-light);
}

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

.security-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.security-card.large {
  grid-column: span 1;
  grid-row: span 2;
}

.security-visual {
  margin-bottom: 2rem;
}

.layer-stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.layer {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: white;
  padding: 1rem;
  border-radius: var(--radius);
  text-align: center;
  font-weight: 600;
  opacity: 0.9;
  transform: translateX(calc(var(--i) * 10px));
  box-shadow: var(--shadow-md);
}

.security-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 1rem;
}

.security-card h3,
.security-card h4 {
  margin-bottom: 1rem;
  font-weight: 700;
}

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

/* Comparison Table */
.comparison-table {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.comparison-table h3 {
  padding: 1.5rem;
  background: var(--bg-gray);
  border-bottom: 1px solid var(--border);
  margin: 0;
  font-size: 1.5rem;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  background: var(--bg-gray);
  font-weight: 600;
  color: var(--text-secondary);
}

.comparison-table .highlight {
  color: var(--primary);
  font-weight: 600;
}

.comparison-table tbody tr:hover {
  background: var(--bg-light);
}

/* FAQ Section */
.faq {
  padding: 5rem 0;
  background: white;
}

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

.faq-item {
  margin-bottom: 1rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.faq-question {
  width: 100%;
  padding: 1.25rem;
  background: white;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--text-secondary);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA Section */
.cta {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: white;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.cta-content p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.cta-badges {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Footer */
.footer {
  padding: 3rem 0 2rem;
  background: var(--bg-gray);
  border-top: 1px solid var(--border);
}

.footer-content {
  text-align: center;
  margin-bottom: 2rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-text {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-light);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    transition: left 0.3s ease;
    box-shadow: var(--shadow-xl);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-visual {
    display: none;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .timeline-item,
  .timeline-item.reverse {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .timeline-item.reverse .timeline-content {
    text-align: center;
  }
  
  .timeline-number {
    margin: 0 auto;
  }
  
  .timeline-visual {
    display: none;
  }
  
  .security-grid {
    grid-template-columns: 1fr;
  }
  
  .security-card.large {
    grid-column: span 1;
    grid-row: span 1;
  }
  
  .comparison-table {
    overflow-x: auto;
  }
  
  .comparison-table table {
    min-width: 500px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-actions {
    flex-direction: column;
  }
}