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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --border-primary: rgba(255, 255, 255, 0.08);
  --border-secondary: rgba(255, 255, 255, 0.12);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-tertiary: rgba(255, 255, 255, 0.5);
  --accent-primary: #6366f1;
  --accent-secondary: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.4);
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --gradient-2: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  --gradient-3: linear-gradient(180deg, rgba(99, 102, 241, 0.15) 0%, transparent 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.15);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 100vh;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent);
  pointer-events: none;
  z-index: 0;
}

.gradient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  top: -200px;
  right: -200px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
  bottom: 20%;
  left: -100px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 24px;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-btn {
  padding: 8px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
}

.nav-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-secondary);
}

/* Hero */
.hero {
  position: relative;
  padding: 160px 0 100px;
  text-align: center;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.hero-title {
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  max-width: 600px;
  margin: 0 auto 40px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-2);
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

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

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--accent-primary);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-secondary);
}

.btn-large {
  padding: 18px 36px;
  font-size: 16px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: 18px;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-primary);
}

/* Features */
.features {
  position: relative;
  padding: 100px 0;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-secondary);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 17px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  position: relative;
  padding: 32px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.feature-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-secondary);
  transform: translateY(-4px);
}

.feature-card.featured {
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  padding: 6px 12px;
  background: var(--gradient-2);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  color: var(--accent-secondary);
}

.feature-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-description {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* How it Works */
.how-it-works {
  position: relative;
  padding: 100px 0;
  z-index: 1;
}

.layers-container {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.layer {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.layer:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-secondary);
  transform: translateX(8px);
}

.layer-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-secondary);
  min-width: 32px;
}

.layer-content {
  flex: 1;
}

.layer-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.layer-description {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* CTA */
.cta {
  position: relative;
  padding: 100px 0;
  z-index: 1;
}

.cta-card {
  position: relative;
  padding: 64px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-description {
  max-width: 500px;
  margin: 0 auto 32px;
  color: var(--text-secondary);
  font-size: 17px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-decoration {
  position: absolute;
  top: 50%;
  right: -100px;
  transform: translateY(-50%);
  z-index: 1;
}

.cta-orb {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
}

/* Footer */
.footer {
  position: relative;
  padding: 48px 0 32px;
  border-top: 1px solid var(--border-primary);
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-tagline {
  color: var(--text-tertiary);
  font-size: 14px;
  margin-top: 8px;
}

.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-primary);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-tertiary);
  font-size: 13px;
}

.footer-powered {
  margin-top: 8px;
}

.footer-powered a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
  .nav-links {
    gap: 12px;
  }
  
  .nav-links a:not(.nav-btn) {
    display: none;
  }
  
  .nav-btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .hero {
    padding: 120px 0 80px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .stat-divider {
    width: 60px;
    height: 1px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 24px;
  }

  .layer {
    padding: 16px 20px;
    gap: 16px;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 28px;
  }

  .stat-value {
    font-size: 16px;
  }
}

/* Form Styles */
.form-container {
  max-width: 560px;
  margin: 0 auto;
}

.demo-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  padding: 14px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  background: var(--bg-glass-hover);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 48px;
}

.form-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  margin-top: 8px;
}

.success-message {
  display: none;
  text-align: center;
  padding: 40px;
}

.success-message.show {
  display: block;
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: var(--gradient-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-icon svg {
  color: white;
}

.success-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.success-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.demo-hero {
  padding-top: 140px;
  padding-bottom: 60px;
}

.demo-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 48px;
  backdrop-filter: blur(20px);
}

@media (max-width: 768px) {
  .demo-card {
    padding: 32px 24px;
  }
}