:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a25;
  --fg: #e8e8ed;
  --fg-muted: #8b8b9e;
  --accent: #4ade80;
  --accent-dim: rgba(74, 222, 128, 0.1);
  --accent-glow: rgba(74, 222, 128, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --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);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(74, 222, 128, 0.2);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero .lede {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

.hero-accent {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* Problem Section */
.problem {
  padding: 100px 0;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.problem-text h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.problem-text p {
  color: var(--fg-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

.problem-text em {
  color: var(--accent);
  font-style: normal;
}

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

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--fg);
  white-space: nowrap;
}

.stat-label {
  color: var(--fg-muted);
  font-size: 15px;
}

/* Services */
.services {
  padding: 120px 0;
}

.services h2 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 60px;
  letter-spacing: -0.5px;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  transition: border-color 0.2s;
}

.service-card:hover {
  border-color: rgba(74, 222, 128, 0.3);
}

.service-icon {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* Math Section */
.math {
  padding: 100px 0;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.math h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 48px;
  text-align: center;
  letter-spacing: -0.5px;
}

.math-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.math-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  text-align: center;
  min-width: 200px;
}

.math-step.highlight {
  border-color: rgba(74, 222, 128, 0.3);
  background: var(--accent-dim);
}

.math-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.math-desc {
  color: var(--fg-muted);
  font-size: 14px;
}

.math-arrow {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--fg-muted);
  font-weight: 600;
}

/* Closing */
.closing {
  padding: 120px 0;
}

.closing-content {
  max-width: 640px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.closing p {
  color: var(--fg-muted);
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.closing-tagline {
  color: var(--accent) !important;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px !important;
  margin-top: 32px !important;
}

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
}

.footer-location {
  color: var(--fg-muted);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 100px 0 80px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .math-flow {
    flex-direction: column;
  }

  .math-step {
    width: 100%;
  }

  .math-arrow {
    transform: rotate(90deg);
  }

  .services h2,
  .closing h2 {
    font-size: 28px;
  }
}