:root {
  --bg: #FAFAF7;
  --bg-alt: #F3F3EE;
  --fg: #1A1A16;
  --fg-muted: #6B6B63;
  --accent: #C84020;
  --accent-warm: #F4E8E0;
  --border: #E2E2DA;
  --code-bg: #1C1C18;
  --code-fg: #E8E8E2;
  --font-serif: 'Crimson Pro', Georgia, serif;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

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

/* Navigation */
.nav {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
}

/* Section shared */
.section-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

/* Hero */
.hero {
  padding: 100px 0 80px;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  display: inline-block;
}
.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(52px, 7vw, 88px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 28px;
  max-width: 700px;
}
.hero-sub {
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 56px;
}

/* Hero visual */
.hero-visual {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.hv-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 10px;
}
.hv-url-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--fg);
  min-width: 180px;
}
.hv-url-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22C55E;
  flex-shrink: 0;
}
.hv-arrow {
  color: var(--fg-muted);
  display: flex;
  align-items: center;
}
.hv-dna {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.dna-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  background: var(--c, #E2E2DA);
  color: var(--fg);
  border: 1px solid var(--border);
}
.dna-font { background: var(--bg-alt); }
.dna-voice { background: var(--accent-warm); color: var(--accent); }

/* How it works */
.howitworks {
  background: var(--fg);
  color: var(--bg);
  padding: 100px 0;
}
.howitworks-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.howitworks .section-eyebrow {
  color: #8A8A7A;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.step {
  padding: 0 48px 0 0;
  border-left: 1px solid #333;
  padding-left: 40px;
}
.step:first-child {
  border-left: none;
  padding-left: 0;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
}
.step-content h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--bg);
  margin-bottom: 14px;
}
.step-content p {
  font-size: 15px;
  line-height: 1.65;
  color: #9A9A8A;
}

/* Capabilities */
.capabilities {
  padding: 100px 0;
}
.capabilities-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.cap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.cap-card {
  background: var(--bg);
  padding: 40px;
}
.cap-primary {
  grid-column: span 2;
  background: var(--fg);
  color: var(--bg);
}
.cap-icon {
  margin-bottom: 20px;
  color: var(--accent);
}
.cap-primary .cap-icon { color: #8181FF; }
.cap-card h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 10px;
}
.cap-card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin-bottom: 24px;
}
.cap-primary p { color: #8A8A7A; }
.cap-colors {
  display: flex;
  gap: 10px;
}
.swatch {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
}

/* Output section */
.output-section {
  background: var(--bg-alt);
  padding: 100px 0;
}
.output-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.output-headline {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 16px;
  max-width: 600px;
}
.output-desc {
  font-size: 17px;
  color: var(--fg-muted);
  margin-bottom: 48px;
  max-width: 480px;
}
.code-block {
  background: var(--code-bg);
  border-radius: 14px;
  overflow: hidden;
}
.code-label {
  padding: 14px 24px;
  border-bottom: 1px solid #2A2A26;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6A6A62;
  letter-spacing: 0.04em;
}
.code-content {
  padding: 28px 24px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--code-fg);
  overflow-x: auto;
}
.t-key { color: #8181FF; }
.t-str { color: #A3D977; }
.t-num { color: #FFB870; }
.code-cta {
  padding: 16px 24px;
  border-top: 1px solid #2A2A26;
  font-size: 13px;
  color: #6A6A62;
  font-family: var(--font-mono);
}

/* Positioning */
.positioning {
  padding: 100px 0;
}
.positioning-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.pos-headline {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 64px;
  max-width: 560px;
}
.pos-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 48px;
  align-items: center;
}
.pos-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.pos-col p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg-muted);
}
.pos-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 120px;
}
.pos-divider-line {
  width: 1px;
  height: 32px;
  background: var(--border);
}
.pos-divider-text {
  font-size: 12px;
  color: var(--fg-muted);
  text-align: center;
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* Closing */
.closing {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.closing-headline {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5vw, 68px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 24px;
  max-width: 700px;
}
.closing-sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-muted);
  max-width: 520px;
}

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
}
.footer-note {
  font-size: 13px;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 64px 0 56px; }
  .hero-headline { font-size: 44px; }
  .hero-inner, .howitworks-inner, .capabilities-inner, .output-inner, .positioning-inner, .closing-inner, .footer-inner, .nav-inner { padding: 0 24px; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .step { border-left: none; border-top: 1px solid #333; padding: 32px 0 0; }
  .step:first-child { border-top: none; padding-top: 0; }
  .cap-grid { grid-template-columns: 1fr; }
  .cap-primary { grid-column: span 1; }
  .pos-grid { grid-template-columns: 1fr; gap: 24px; }
  .pos-divider { flex-direction: row; }
  .pos-divider-line { width: 32px; height: 1px; }
  .hero-visual { gap: 20px; }
}