:root {
  --bg: #faf8f5;
  --bg-alt: #f2ede5;
  --fg: #1a1a1a;
  --fg-muted: #6b6560;
  --accent: #c8973c;
  --accent-hover: #b8862d;
  --border: #e2dbd1;
  --brand-ai: #3b82f6;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
}

.nav-logo {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}

/* Brand "ai" accent — highlights the "ai" suffix in Registrai */
.brand-ai {
  color: var(--brand-ai);
}

/* Hero */
.hero {
  padding: 96px 32px 80px;
  border-bottom: 1px solid var(--border);
}

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

.hero-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.hero-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
  max-width: 700px;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-lede {
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  padding: 0 40px 0 0;
}

.stat-number {
  font-family: 'Fraunces', serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
  margin: 0 40px 0 0;
}

/* Manifesto */
.manifesto {
  padding: 88px 32px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

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

.manifesto-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.manifesto-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  max-width: 640px;
  margin-bottom: 32px;
}

.manifesto-body p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 580px;
}

.manifesto-body p + p {
  margin-top: 20px;
}

/* Features */
.features {
  padding: 88px 32px;
  border-bottom: 1px solid var(--border);
}

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

.features-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature {
  background: var(--bg);
  padding: 40px 36px;
}

.feature-icon {
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-muted);
}

/* Proof / Timeline */
.proof {
  padding: 88px 32px;
  background: var(--fg);
  border-bottom: 1px solid var(--fg);
}

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

.proof-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.proof-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #fff;
  max-width: 580px;
  margin-bottom: 32px;
}

.proof-body p {
  font-size: 16px;
  line-height: 1.7;
  color: #a8a39d;
  max-width: 560px;
}

.proof-body p + p {
  margin-top: 16px;
}

.proof-timeline {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: transparent;
  flex-shrink: 0;
  margin-top: 4px;
}

.timeline-dot.filled {
  background: var(--accent);
}

.timeline-content {
  display: flex;
  flex-direction: column;
}

.timeline-year {
  font-family: 'Fraunces', serif;
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 4px;
}

.timeline-event {
  font-size: 14px;
  color: #a8a39d;
}

/* Closing */
.closing {
  padding: 96px 32px;
  border-bottom: 1px solid var(--border);
}

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

.closing-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  max-width: 700px;
  margin-bottom: 28px;
}

.closing-body {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 540px;
}

/* Footer */
.footer {
  padding: 48px 32px;
}

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

.footer-brand {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.footer-legal {
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 64px 24px 56px;
  }
  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .stat-divider {
    display: none;
  }
  .stat {
    padding: 0;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .manifesto, .features, .proof, .closing {
    padding: 64px 24px;
  }
  .proof {
    background: var(--fg);
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: 42px;
  }
  .closing-headline {
    font-size: 32px;
  }
}