:root {
  --bg: #0d1117;
  --fg: #e6edf3;
  --muted: #7d8590;
  --lime: #b8ff00;
  --lime-dim: #b8ff0022;
  --border: #21262d;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Instrument Sans', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tag {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── HERO ── */
.hero {
  padding: 100px 48px 96px;
  max-width: 1100px;
  position: relative;
}
.hero-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 48px;
}
.dot {
  width: 8px;
  height: 8px;
  background: var(--lime);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hero-headline {
  font-family: var(--serif);
  font-size: clamp(64px, 9vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 40px;
}
.hero-headline em {
  font-style: italic;
  color: var(--lime);
}
.hero-sub {
  font-size: 20px;
  color: var(--muted);
  max-width: 580px;
  line-height: 1.5;
  margin-bottom: 72px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 48px;
}
.stat {
  display: flex;
  flex-direction: column;
}
.stat-num {
  font-family: var(--serif);
  font-size: 48px;
  color: var(--lime);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* ── HOW IT WORKS ── */
.steps {
  padding: 96px 48px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.steps-header {
  max-width: 600px;
  margin-bottom: 72px;
}
.steps-title {
  font-family: var(--serif);
  font-size: 48px;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 16px;
}
.steps-sub {
  font-size: 18px;
  color: var(--muted);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.step {
  background: #161b22;
  padding: 40px 36px;
  border: 1px solid var(--border);
}
.step-num {
  font-family: var(--serif);
  font-size: 13px;
  color: var(--lime);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}
.step-name {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}
.step-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.6;
}

/* ── DIFFERENCE ── */
.diff {
  padding: 96px 48px;
  border-top: 1px solid var(--border);
  background: #070a0e;
}
.diff-inner {
  max-width: 900px;
}
.diff-headline {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 64px;
}
.diff-table {
  width: 100%;
  border-collapse: collapse;
}
.diff-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
}
.diff-row.diff-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 8px;
}
.diff-row > * {
  padding: 20px 0;
  font-size: 15px;
  color: var(--muted);
}
.diff-feature {
  color: var(--fg) !important;
  font-weight: 500;
}
.diff-col-label {
  font-size: 12px !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted) !important;
}
.diff-col-label.accent-col {
  color: var(--lime) !important;
}
.diff-val {
  color: var(--muted);
}
.diff-val.accent {
  color: var(--lime) !important;
  font-weight: 500;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
}
.closing-inner {
  max-width: 700px;
}
.closing-statement {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}
.closing-sub {
  font-size: 18px;
  color: var(--muted);
}

/* ── FOOTER ── */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-weight: 600;
  font-size: 14px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.footer-meta {
  font-size: 13px;
  color: var(--muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 64px 24px 72px; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 32px; }
  .stat-divider { display: none; }
  .steps { padding: 64px 24px; }
  .steps-grid { grid-template-columns: 1fr; }
  .diff { padding: 64px 24px; }
  .diff-row { grid-template-columns: 1fr; }
  .diff-row > * { padding: 12px 0; }
  .closing { padding: 80px 24px; }
  .footer { padding: 32px 24px; flex-direction: column; gap: 8px; align-items: flex-start; }
}