:root {
  --bg-dark: #0b0f14;
  --bg-card: #141a22;
  --bg-light: #0e1319;
  --fg: #e8ecf1;
  --fg-muted: #8892a0;
  --accent: #3cdd8c;
  --accent-dim: rgba(60, 221, 140, 0.12);
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-dark);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── HERO ── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 80px 24px;
}

.hero-inner {
  max-width: 720px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-grid {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  opacity: 0.15;
  z-index: 1;
}

.grid-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fg-muted);
}

.grid-dot.active {
  background: var(--accent);
  box-shadow: 0 0 20px var(--accent), 0 0 60px rgba(60, 221, 140, 0.3);
  width: 12px;
  height: 12px;
}

/* ── PROBLEM ── */
.problem {
  padding: 100px 24px;
  background: var(--bg-light);
}

.problem-inner {
  max-width: 960px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(60, 221, 140, 0.25);
}

.problem-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── HOW ── */
.how {
  padding: 100px 24px;
}

.how-inner {
  max-width: 640px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  letter-spacing: -0.02em;
}

.step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  min-width: 60px;
  opacity: 0.7;
}

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.step-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin: 8px 0 8px 28px;
  opacity: 0.3;
}

/* ── NUMBERS ── */
.numbers {
  padding: 80px 24px;
  background: var(--bg-light);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.numbers-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 24px;
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── FOOTER ── */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
}

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

/* ── CTA BUTTONS ── */
.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 36px;
}

.cta-btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 999px;
  text-decoration: none;
  transition: opacity 0.2s, border-color 0.2s;
  letter-spacing: -0.01em;
}

.cta-primary {
  background: var(--accent);
  color: #0b0f14;
}

.cta-primary:hover { opacity: 0.9; }

.cta-secondary {
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--fg);
  background: transparent;
}

.cta-secondary:hover { border-color: rgba(255,255,255,0.4); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .problem-cards {
    grid-template-columns: 1fr;
  }
  .numbers-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .hero {
    min-height: 80vh;
    padding: 60px 20px;
  }
}

@media (max-width: 480px) {
  .numbers-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .step {
    gap: 16px;
  }
  .step-num {
    font-size: 2rem;
    min-width: 44px;
  }
}