:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --surface-2: #1a1a1a;
  --amber: #f5a623;
  --amber-dim: rgba(245, 166, 35, 0.12);
  --white: #fafafa;
  --muted: #888888;
  --border: #222222;
  --text-secondary: #bbbbbb;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--amber);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* HERO */
.hero {
  padding: 80px 48px 64px;
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 900px; }
.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 48px;
  font-weight: 300;
}
.hero-stat-row {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
}
.hero-stat {
  padding: 20px 32px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--amber);
  letter-spacing: -0.03em;
}
.hero-stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  max-width: 120px;
}
.hero-stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* EVIDENCE */
.evidence {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}
.evidence-inner { max-width: 760px; }
.evidence-label, .section-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}
.evidence-headline {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 20px;
}
.evidence-body {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.7;
}

/* MECHANIC */
.mechanic {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}
.mechanic-inner { max-width: 900px; }
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 48px;
}
.mechanic-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.mechanic-step {
  background: var(--surface);
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 0;
}
.mechanic-step-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--amber);
  opacity: 0.3;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
}
.mechanic-step-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}
.mechanic-step-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

/* TIERS */
.tiers {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.tiers-inner { max-width: 1000px; }
.section-sub {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 40px;
  margin-top: -32px;
}
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.tier-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 32px;
  position: relative;
}
.tier-card-featured {
  border-color: var(--amber);
  background: var(--amber-dim);
}
.tier-badge {
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--amber);
  color: var(--bg);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
}
.tier-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}
.tier-tagline {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 28px;
}
.tier-price-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.tier-option {}
.tier-option-label {
  font-size: 0.65rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.tier-option-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--white);
  letter-spacing: -0.03em;
}
.tier-option-note {
  font-size: 0.7rem;
  color: var(--muted);
}
.tier-option-sep {
  color: var(--border);
  font-size: 0.8rem;
}
.tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tier-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}
.tier-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--amber);
  border-radius: 50%;
}

/* AI TOOLS */
.ai-tools {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}
.ai-tools-inner { max-width: 900px; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 0;
}
.tool-item {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px;
}
.tool-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--amber-dim);
  color: var(--amber);
  border-radius: 4px;
  margin-bottom: 16px;
}
.tool-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.tool-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.5;
}

/* SCALE */
.scale {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}
.scale-inner { max-width: 700px; }
.scale-numbers {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 32px;
  margin-bottom: 24px;
}
.scale-calc { display: flex; flex-direction: column; gap: 12px; }
.scale-calc-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.scale-calc-row span:last-child { color: var(--white); font-weight: 500; }
.scale-calc-total {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--amber);
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
}
.scale-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 100px 48px;
}
.closing-inner { max-width: 760px; }
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
}
.closing-body {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.7;
  max-width: 580px;
}

/* FOOTER */
.footer {
  padding: 48px;
  border-top: 1px solid var(--border);
}
.footer-inner {}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--amber);
  margin-bottom: 8px;
}
.footer-sub {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 4px;
}
.footer-note {
  font-size: 0.72rem;
  color: #333;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 56px 24px 48px; }
  .hero-headline { font-size: 1.8rem; }
  .hero-stat-row { flex-direction: column; width: 100%; }
  .hero-stat-divider { width: 100%; height: 1px; }
  .mechanic-steps { grid-template-columns: 1fr; }
  .tier-grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr 1fr; }
  .evidence, .mechanic, .tiers, .ai-tools, .scale, .closing { padding: 56px 24px; }
}
@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
  .tier-price-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .tier-option-sep { display: none; }
}