:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --fg: #e8e8ec;
  --fg-muted: #8a8a96;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
}

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

/* Hero */
.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  padding: 4rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  border: 1px solid rgba(245, 158, 11, 0.3);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5.5rem);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.lede {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
}

.pulse-ring {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0.3;
  animation: pulse 3s ease-in-out infinite;
}

.pulse-ring.delay-1 {
  animation-delay: 1s;
  width: 300px;
  height: 300px;
}

.pulse-ring.delay-2 {
  animation-delay: 2s;
  width: 400px;
  height: 400px;
}

.pulse-dot {
  width: 24px;
  height: 24px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 40px var(--accent), 0 0 80px rgba(245, 158, 11, 0.3);
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.1; }
}

@keyframes glow {
  0% { box-shadow: 0 0 40px var(--accent), 0 0 80px rgba(245, 158, 11, 0.3); }
  100% { box-shadow: 0 0 60px var(--accent), 0 0 120px rgba(245, 158, 11, 0.4); }
}

/* Problem */
.problem {
  padding: 8rem 6rem;
  border-top: 1px solid var(--border);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.problem-statement h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 1.5rem;
}

.problem-statement p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.problem-stats {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  color: var(--fg-muted);
  font-size: 0.95rem;
}

/* Features */
.features {
  padding: 8rem 6rem;
  border-top: 1px solid var(--border);
}

.features-header {
  margin-bottom: 4rem;
}

.features-header h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 1rem;
}

.features-header p {
  color: var(--fg-muted);
  font-size: 1.1rem;
}

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

.feature-card {
  padding: 2.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.feature-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* How */
.how {
  padding: 8rem 6rem;
  border-top: 1px solid var(--border);
}

.how h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 4rem;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 700px;
}

.how-step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-marker {
  width: 12px;
  height: 12px;
  min-width: 12px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 0.5rem;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
}

.step-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 10rem 6rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-content {
  max-width: 800px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 1.5rem;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.15rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  padding: 3rem 6rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
}

.footer-content {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 3rem 1.5rem;
    min-height: 70vh;
  }

  .hero-visual {
    display: none;
  }

  .problem {
    padding: 4rem 1.5rem;
  }

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

  .features {
    padding: 4rem 1.5rem;
  }

  .feature-cards {
    grid-template-columns: 1fr;
  }

  .how {
    padding: 4rem 1.5rem;
  }

  .closing {
    padding: 5rem 1.5rem;
  }

  .site-footer {
    padding: 2rem 1.5rem;
  }
}