:root {
  --bg-primary: #0a0f0d;
  --bg-secondary: #111916;
  --bg-card: #161f1b;
  --fg-primary: #e8efe9;
  --fg-secondary: #8fa898;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.12);
  --border: rgba(74, 222, 128, 0.15);
  --radius: 12px;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px;
  position: relative;
  background: radial-gradient(ellipse at 50% 0%, rgba(74, 222, 128, 0.06) 0%, transparent 60%);
}

.hero-badge {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 800px;
  margin-bottom: 24px;
}

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

.lede {
  font-size: 1.125rem;
  color: var(--fg-secondary);
  max-width: 600px;
  margin-bottom: 48px;
}

.hero-stat-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  justify-content: center;
}

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

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--fg-secondary);
  margin-top: 4px;
}

/* PROBLEM */
.problem {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 56px;
  max-width: 700px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

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

.problem-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  opacity: 0.7;
}

.problem-card h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
  color: var(--fg-primary);
}

.problem-card p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
}

/* HOW IT WORKS */
.how-it-works {
  padding: 120px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.how-it-works h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 64px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  min-width: 80px;
  line-height: 1;
}

.step-content h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

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

/* FEATURES */
.features {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

.features h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 56px;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.feature {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.feature:hover {
  border-color: var(--accent-dim);
}

.feature h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--accent);
}

.feature p {
  color: var(--fg-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* CLOSING */
.closing {
  padding: 140px 24px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 100%, rgba(74, 222, 128, 0.04) 0%, transparent 60%);
}

.closing-inner {
  max-width: 750px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 24px;
  line-height: 1.3;
}

.closing p {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
}

.footer-tagline {
  color: var(--fg-secondary);
  font-size: 0.875rem;
}

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

  .hero-stat-row {
    gap: 32px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .step-number {
    font-size: 2rem;
    min-width: auto;
  }

  .problem, .how-it-works, .features, .closing {
    padding: 80px 20px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}