:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --dark: #030712;
  --dark-800: #0a0f1a;
  --dark-700: #111827;
  --dark-600: #1f2937;
  --text: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --success: #10b981;
  --error: #ef4444;
  --gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 50%, #10b981 100%);
  --gradient-text: linear-gradient(135deg, #818cf8 0%, #06b6d4 100%);
  --glow: 0 0 60px rgba(99, 102, 241, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ==================== NAVIGATION ==================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(20px);
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
  stroke: white;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: width 0.3s;
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 8rem 4rem 4rem;
  position: relative;
  overflow: hidden;
  gap: 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.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: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: 1.5rem;
}

.badge svg {
  color: var(--accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

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

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background: var(--dark-700);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Visual - Orbiting Animation */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 500px;
}

.orbit-container {
  position: relative;
  width: 400px;
  height: 400px;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(99, 102, 241, 0.1);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.orbit-1 {
  width: 200px;
  height: 200px;
  animation: pulse-ring 4s ease-in-out infinite;
}

.orbit-2 {
  width: 300px;
  height: 300px;
  animation: pulse-ring 4s ease-in-out infinite 0.5s;
}

.orbit-3 {
  width: 400px;
  height: 400px;
  animation: pulse-ring 4s ease-in-out infinite 1s;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.02); }
}

.center-node {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: var(--gradient);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow);
  padding: 18px;
}

.center-node svg {
  width: 100%;
  height: 100%;
  stroke: white;
}

.satellite {
  position: absolute;
  width: 48px;
  height: 48px;
  background: var(--dark-700);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.satellite svg {
  width: 100%;
  height: 100%;
  stroke: var(--primary-light);
}

.sat-1 {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  animation: float 6s ease-in-out infinite;
}

.sat-2 {
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  animation: float 6s ease-in-out infinite 1s;
}

.sat-3 {
  bottom: 15%;
  left: 15%;
  animation: float 6s ease-in-out infinite 2s;
}

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

/* ==================== SECTIONS COMMON ==================== */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ==================== FEATURES ==================== */
.features {
  padding: 8rem 2rem;
  background: var(--dark-800);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--dark-700);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-large {
  grid-column: span 2;
  grid-row: span 2;
  display: flex;
  flex-direction: column;
}

.feature-large .feature-icon-wrapper {
  width: 64px;
  height: 64px;
  margin-bottom: 1.5rem;
}

.feature-large h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-large p {
  font-size: 1.0625rem;
  line-height: 1.7;
  flex: 1;
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  padding: 10px;
}

.feature-icon-wrapper svg {
  width: 100%;
  height: 100%;
  stroke: var(--primary-light);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.feature-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1.5rem;
  flex-wrap: wrap;
}

.feature-tags span {
  padding: 0.375rem 0.75rem;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary-light);
}

/* ==================== HOW IT WORKS ==================== */
.how-it-works {
  padding: 8rem 2rem;
  position: relative;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--success));
  opacity: 0.3;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--dark-700);
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-light);
  margin: 0 auto 1.5rem;
  position: relative;
  z-index: 1;
}

.step-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.step-content p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  max-width: 280px;
  margin: 0 auto;
}

/* ==================== CTA ==================== */
.cta {
  padding: 6rem 2rem;
  background: linear-gradient(180deg, var(--dark) 0%, var(--dark-800) 100%);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 4rem;
  background: var(--dark-700);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.cta-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.cta-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-content p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* ==================== FOOTER ==================== */
.footer {
  padding: 4rem 2rem 2rem;
  background: var(--dark-800);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-links-group h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text);
}

.footer-links-group a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.375rem 0;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
  color: var(--text-dim);
  font-size: 0.8125rem;
}

.footer-aws {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #ff9900;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* ==================== ANIMATIONS ==================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 7rem 2rem 4rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-visual {
    display: none;
  }

  .hero-stats {
    justify-content: center;
  }

  .btn-group {
    justify-content: center;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav {
    padding: 1rem;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 6rem 1rem 3rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .features,
  .how-it-works {
    padding: 4rem 1rem;
  }

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

  .feature-large {
    grid-column: span 1;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .steps::before {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}