:root {
  --bg: #f5f5f0;
  --bg-alt: #ecece5;
  --fg: #1a1a2e;
  --fg-muted: #6b6b7b;
  --accent: #00d4aa;
  --accent-dark: #00b088;
  --white: #ffffff;
  --border: rgba(26, 26, 46, 0.12);
}

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

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

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  line-height: 1.15;
}

/* Navbar */
.navbar {
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 400;
}

/* Hero */
.hero {
  padding: 80px 40px 60px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.hero-headline {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 20px;
  letter-spacing: -1.5px;
}
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 460px;
  line-height: 1.7;
}

/* Flow diagram */
.flow-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 32px;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 32px rgba(0,0,0,0.06);
}
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  flex: 0 0 auto;
}
.flow-node span:last-child {
  font-size: 12px;
  color: var(--fg-muted);
  line-height: 1.4;
}
.flow-icon {
  font-size: 28px;
  display: block;
  margin-bottom: 4px;
}
.flow-node-input { }
.flow-node-ai { }
.flow-node-book { }
.flow-arrow {
  color: var(--accent);
  flex: 0 0 auto;
  padding: 0 8px;
}

/* Problem */
.problem {
  background: var(--fg);
  padding: 80px 40px;
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem .section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}
.problem-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.stat-number {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: -2px;
}
.stat-text {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}

/* Solution */
.solution {
  padding: 80px 40px;
}
.solution-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  display: block;
}
.section-headline {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 20px;
  letter-spacing: -1px;
  max-width: 600px;
}
.solution-desc {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
}

/* Services */
.services {
  background: var(--bg-alt);
  padding: 80px 40px;
}
.services-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid var(--border);
}
.service-icon-wrap {
  width: 48px;
  height: 48px;
  background: var(--fg);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fg);
}
.service-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Outcomes */
.outcomes {
  padding: 80px 40px;
}
.outcomes-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 40px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.outcome-item {
  padding: 32px 24px;
  border-right: 1px solid var(--border);
}
.outcome-item:last-child { border-right: none; }
.outcome-stat {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 6px;
  letter-spacing: -1px;
}
.outcome-desc {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* Closing */
.closing {
  background: var(--fg);
  padding: 100px 40px;
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.closing-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.2;
  letter-spacing: -1px;
}
.closing-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.closing-tagline {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* Footer */
.footer {
  padding: 32px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 16px;
  color: var(--fg);
}
.footer-copy {
  font-size: 13px;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .flow-diagram { flex-wrap: wrap; justify-content: center; }
  .problem-stats { grid-template-columns: 1fr; gap: 32px; }
  .services-inner { grid-template-columns: 1fr; }
  .outcomes-grid { grid-template-columns: repeat(2, 1fr); }
  .outcome-item:nth-child(2) { border-right: none; }
  .footer-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
  .navbar, .hero, .solution, .outcomes, .closing, .footer { padding-left: 24px; padding-right: 24px; }
  .services { padding: 60px 24px; }
  .problem { padding: 60px 24px; }
}
@media (max-width: 480px) {
  .outcomes-grid { grid-template-columns: 1fr; }
  .outcome-item { border-right: none; border-bottom: 1px solid var(--border); }
  .outcome-item:last-child { border-bottom: none; }
}