:root {
  --bg: #0c0a09;
  --bg-warm: #1c1917;
  --bg-card: #292524;
  --fg: #fafaf9;
  --fg-muted: #a8a29e;
  --fg-subtle: #78716c;
  --accent: #ea580c;
  --accent-light: #fb923c;
  --accent-glow: rgba(234, 88, 12, 0.15);
  --border: #44403c;
  --radius: 12px;
  --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: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(234, 88, 12, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

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

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 56px;
}

/* Flow Diagram */
.hero-visual {
  margin-top: 20px;
}

.flow-diagram {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.flow-node {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  flex: 1;
  min-width: 130px;
}

.flow-node.active {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.flow-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.flow-node span {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.flow-node.active span {
  color: var(--accent-light);
}

.flow-arrow {
  color: var(--fg-subtle);
  font-size: 1.4rem;
}

/* Problem */
.problem {
  padding: 100px 24px;
  background: var(--bg-warm);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.problem p {
  color: var(--fg-muted);
  margin-bottom: 16px;
  max-width: 520px;
}

.problem .subtle {
  color: var(--fg-subtle);
  font-style: italic;
}

.stat-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

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

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

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step {
  padding: 32px 24px;
  border-left: 2px solid var(--border);
}

.step:hover {
  border-left-color: var(--accent);
}

.step-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Features */
.features {
  padding: 80px 24px 100px;
  background: var(--bg-warm);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
}

.feature-card.large {
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.feature-card.large::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.feature-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.feature-card p {
  color: var(--fg-muted);
  max-width: 640px;
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-grid .feature-card {
  padding: 32px 28px;
}

.feature-grid h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-grid p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

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

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing > .closing-inner > p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 48px;
}

.closing-vision {
  margin-top: 48px;
  padding: 32px 40px;
  background: var(--accent-glow);
  border: 1px solid rgba(234, 88, 12, 0.25);
  border-radius: var(--radius);
}

.vision-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent-light);
  line-height: 1.6;
}

/* Footer */
.site-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;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

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

/* Mobile */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 60px 20px 48px;
  }

  .flow-diagram {
    flex-direction: column;
    gap: 8px;
  }

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

  .flow-node {
    min-width: 100%;
    padding: 14px 20px;
  }

  .problem-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .closing {
    padding: 80px 20px;
  }

  .closing-vision {
    padding: 24px;
  }
}