:root {
  --bg: #0c0c14;
  --bg-elevated: #13131f;
  --bg-card: #1a1a28;
  --fg: #f0f0f5;
  --fg-muted: #8a8a9a;
  --fg-subtle: #5a5a6a;
  --accent: #22d3ee;
  --accent-glow: rgba(34, 211, 238, 0.15);
  --border: #2a2a3a;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 80px 60px;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 28px;
}

.hero-headline {
  font-size: clamp(40px, 5vw, 64px);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.pulse-ring {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.pulse-ring-inner,
.pulse-ring-middle,
.pulse-ring-outer {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0.3;
  animation: pulse 3s ease-in-out infinite;
}

.pulse-ring-inner {
  width: 100px;
  height: 100px;
  animation-delay: 0s;
}

.pulse-ring-middle {
  width: 180px;
  height: 180px;
  animation-delay: 0.5s;
}

.pulse-ring-outer {
  width: 260px;
  height: 260px;
  animation-delay: 1s;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.2; }
  50% { transform: scale(1.05); opacity: 0.4; }
}

.pulse-core {
  width: 64px;
  height: 64px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--bg);
  z-index: 1;
}

.hero-metrics {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 48px;
  background: var(--bg-elevated);
  border-radius: 16px;
  border: 1px solid var(--border);
}

.metric {
  text-align: center;
}

.metric-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.metric-label {
  font-size: 14px;
  color: var(--fg-muted);
  max-width: 200px;
  margin: 0 auto;
}

/* Features */
.features {
  padding: 120px 60px;
  max-width: 1400px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 80px;
}

.features-header h2 {
  font-size: 40px;
  margin-bottom: 20px;
}

.features-header p {
  color: var(--fg-muted);
  font-size: 18px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.feature:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--accent);
  margin-bottom: 24px;
}

.feature h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.feature p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 120px 60px;
  max-width: 1400px;
  margin: 0 auto;
}

.closing-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-size: 40px;
  margin-bottom: 24px;
}

.closing > .closing-content > p {
  color: var(--fg-muted);
  font-size: 18px;
  margin-bottom: 48px;
}

.closing-vision {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  text-align: left;
}

.vision-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 20px;
}

.closing-vision p {
  font-size: 18px;
  color: var(--fg);
  line-height: 1.7;
}

/* Footer */
footer {
  padding: 80px 60px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--fg-muted);
  font-size: 14px;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col span {
  color: var(--fg-muted);
  font-size: 13px;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 60px;
    padding: 60px 40px;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .pulse-ring {
    width: 200px;
    height: 200px;
  }
  
  .pulse-ring-inner { width: 70px; height: 70px; }
  .pulse-ring-middle { width: 130px; height: 130px; }
  .pulse-ring-outer { width: 190px; height: 190px; }
  
  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .features {
    padding: 80px 40px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .closing {
    padding: 80px 40px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 48px 24px;
  }
  
  .hero-headline {
    font-size: 36px;
  }
  
  .hero-sub {
    font-size: 16px;
  }
  
  .hero-metrics {
    padding: 32px 24px;
  }
  
  .metric-value {
    font-size: 36px;
  }
  
  .features {
    padding: 60px 24px;
  }
  
  .features-header h2 {
    font-size: 28px;
  }
  
  .feature {
    padding: 28px;
  }
  
  .closing {
    padding: 60px 24px;
  }
  
  .closing h2 {
    font-size: 28px;
  }
  
  .closing-vision {
    padding: 32px 24px;
  }
  
  footer {
    padding: 60px 24px 32px;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 32px;
  }
}