:root {
  --bg: #F7F5F0;
  --bg-card: #FFFFFF;
  --fg: #1C1B18;
  --fg-muted: #6B6860;
  --accent: #C4603A;
  --accent-warm: #E8876A;
  --teal: #2A7C6F;
  --border: #E2DED6;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

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

/* Nav */
.nav {
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 0;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tagline {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
  margin-left: 6px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Section utilities */
.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 20px;
}
.section-body {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* Hero */
.hero {
  padding: 80px 48px 96px;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.hero-overline {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: 56px;
}

/* Product card stack */
.hero-product-stack {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 860px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
}
.product-card--tracker::before { background: var(--teal); }
.product-card--guide::before { background: #8B6BBE; }

.product-card-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 10px;
}
.product-card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 12px;
}
.product-card-detail {
  font-size: 0.78rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Products section */
.products {
  padding: 96px 48px;
  border-bottom: 1px solid var(--border);
}
.products-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 48px;
  margin-top: 64px;
}
.product-item {
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.product-icon {
  color: var(--accent);
  margin-bottom: 16px;
}
.product-item-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--fg);
}
.product-item-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Insight section */
.insight {
  padding: 80px 48px;
  background: var(--fg);
  color: var(--bg);
}
.insight-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.insight-stat-group {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.insight-stat { text-align: center; }
.insight-num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #FFF;
  display: block;
  line-height: 1;
}
.insight-desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 8px;
  line-height: 1.4;
}
.insight-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.insight-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.65);
  max-width: 720px;
}

/* Why section */
.why {
  padding: 96px 48px;
  border-bottom: 1px solid var(--border);
}
.why-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 64px;
  margin-top: 64px;
}
.why-item { position: relative; }
.why-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.why-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--fg);
}
.why-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 96px 48px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin-bottom: 28px;
}
.closing-body {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.8;
}

/* Footer */
.footer {
  padding: 40px 48px;
  background: var(--fg);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #FFF;
  display: block;
  margin-bottom: 6px;
}
.footer-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}
.footer-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  text-align: right;
}

/* Mobile */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 56px 24px 72px; }
  .hero-product-stack { grid-template-columns: 1fr; gap: 12px; }
  .products { padding: 64px 24px; }
  .product-grid { grid-template-columns: 1fr; gap: 36px; }
  .insight { padding: 56px 24px; }
  .insight-stat-group { flex-direction: column; gap: 32px; }
  .insight-divider { width: 40px; height: 1px; }
  .why { padding: 64px 24px; }
  .why-grid { grid-template-columns: 1fr; gap: 36px; }
  .closing { padding: 64px 24px; }
  .footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
  .footer-note { text-align: left; }
}