:root {
  --bg-primary: #0d0d0f;
  --bg-secondary: #141418;
  --bg-card: #1a1a20;
  --fg-primary: #f5f5f7;
  --fg-secondary: #a0a0a8;
  --fg-muted: #6b6b73;
  --accent: #f59e0b;
  --accent-dim: #d97706;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --border: #2a2a32;
  --radius: 12px;
}

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

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

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px;
  background: radial-gradient(ellipse at 50% 0%, rgba(245, 158, 11, 0.08) 0%, transparent 60%);
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  max-width: 800px;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--fg-secondary);
  max-width: 600px;
  margin-bottom: 56px;
}

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

.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: 0.85rem;
  color: var(--fg-muted);
  max-width: 160px;
  text-align: center;
}

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

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

.problem h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 56px;
  text-align: center;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

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

.problem-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

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

/* FEATURES */
.features {
  padding: 120px 24px;
}

.features-inner {
  max-width: 900px;
  margin: 0 auto;
}

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

.features-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.features-sub {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 560px;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-item {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.feature-item:first-child {
  border-top: 1px solid var(--border);
}

.feature-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 36px;
  padding-top: 2px;
}

.feature-content h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

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

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

.how-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.how-inner h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 56px;
}

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

.how-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  max-width: 220px;
  text-align: center;
}

.how-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

.how-step p {
  color: var(--fg-secondary);
  font-size: 0.9rem;
}

.how-arrow {
  font-size: 1.5rem;
  color: var(--fg-muted);
}

/* CLOSING */
.closing {
  padding: 140px 24px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 100%, rgba(245, 158, 11, 0.06) 0%, transparent 60%);
}

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

.closing h2 {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  margin-bottom: 24px;
}

.closing-text {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.closing-tagline {
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
}

/* 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-size: 1.25rem;
  font-weight: 700;
}

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

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

  .hero-stats {
    gap: 32px;
  }

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

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

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

  .how-grid {
    flex-direction: column;
  }

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

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