:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2a3f;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #10b981;
  --accent-soft: rgba(16, 185, 129, 0.12);
  --accent-glow: rgba(16, 185, 129, 0.25);
  --border: rgba(148, 163, 184, 0.08);
  --radius: 12px;
  --radius-lg: 20px;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  background: radial-gradient(ellipse at 50% 0%, rgba(16, 185, 129, 0.06) 0%, transparent 60%);
}

.hero-container {
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--accent-soft);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

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

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Problem Section */
.problem {
  padding: 6rem 2rem;
}

.problem-container {
  max-width: 1000px;
  margin: 0 auto;
}

.section-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 3rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: rgba(16, 185, 129, 0.2);
}

.problem-icon {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.problem-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Features */
.features {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.features-container {
  max-width: 1000px;
  margin: 0 auto;
}

.features-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-block {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s, border-color 0.2s;
}

.feature-block:hover {
  transform: translateY(-2px);
  border-color: rgba(16, 185, 129, 0.2);
}

.feature-large {
  grid-column: span 2;
}

.feature-tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  background: var(--accent-soft);
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.feature-block h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

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

/* How */
.how {
  padding: 6rem 2rem;
}

.how-container {
  max-width: 700px;
  margin: 0 auto;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.how-step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 50%;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% 100%, rgba(16, 185, 129, 0.06) 0%, transparent 60%);
}

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

.closing h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

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

/* Footer */
.footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

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

/* CTA Button */
.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.5rem;
  background: var(--accent);
  color: #0a0f1a;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 20px var(--accent-glow);
}

.cta-button:hover {
  background: #0fd992;
  transform: translateY(-1px);
  box-shadow: 0 4px 25px var(--accent-glow);
}

.cta-button:active {
  transform: translateY(0);
}

.cta-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 4rem 1.5rem 3rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.2rem;
    padding: 1.5rem;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

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

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

  .feature-large {
    grid-column: span 1;
  }

  .how-step {
    flex-direction: column;
    gap: 1rem;
  }

  .footer-container {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .closing {
    padding: 5rem 1.5rem;
  }

  .problem,
  .features,
  .how {
    padding: 4rem 1.5rem;
  }
}