:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e8e8;
  --fg-muted: #888;
  --fg-dim: #555;
  --accent: #00e87b;
  --accent-dim: rgba(0, 232, 123, 0.12);
  --accent-glow: rgba(0, 232, 123, 0.25);
  --border: #222;
  --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;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

/* ===== HERO ===== */
.hero {
  padding: 120px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 232, 123, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  color: #fff;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-stat {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.stat-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 12px 24px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--fg-muted);
}

.stat-number {
  color: var(--accent);
  font-weight: 700;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

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

.problem-left h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: #fff;
  position: sticky;
  top: 100px;
}

.problem-right {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.problem-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.problem-icon {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.problem-card h3 {
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 10px;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ===== HOW ===== */
.how {
  padding: 100px 24px;
  max-width: 800px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.how-header {
  margin-bottom: 64px;
}

.how-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.how-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: #fff;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  padding: 32px 0;
}

.step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
  padding-top: 4px;
}

.step-content h3 {
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 10px;
}

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

.step-divider {
  height: 1px;
  background: var(--border);
  margin-left: 84px;
}

/* ===== NUMBERS ===== */
.numbers {
  padding: 100px 24px;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  border-top: 1px solid var(--border);
}

.numbers h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: #fff;
  margin-bottom: 56px;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.number-block {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 20px;
}

.number-value {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

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

.numbers-bottom p {
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  border-top: 1px solid var(--border);
}

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

.closing-content h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  color: #fff;
  margin-bottom: 24px;
}

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

/* ===== FOOTER ===== */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 80px 20px 60px; }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .problem-left h2 {
    position: static;
  }

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .step {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }

  .step-divider {
    margin-left: 56px;
  }

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

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

  .hero { padding: 60px 16px 48px; }
  .problem { padding: 60px 16px; }
  .how { padding: 60px 16px; }
  .numbers { padding: 60px 16px; }
  .closing { padding: 80px 16px; }
}