:root {
  --bg: #F8F4EE;
  --bg-alt: #EDE9E1;
  --fg: #1C1C1A;
  --fg-muted: #6B6760;
  --accent: #B8943F;
  --accent-warm: #C9A96E;
  --green: #1B4332;
  --green-mid: #2D6A4F;
  --green-light: #40916C;
  --border: #D4CFC7;
  --card-bg: #FFFFFF;
  --radius: 6px;
  --nav-h: 64px;
}

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

html { scroll-behavior: smooth; }

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

/* ── Navigation ── */
.site-nav {
  height: var(--nav-h);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-os {
  color: var(--green);
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.01em;
}

/* ── Hero ── */
.hero {
  padding: 80px 24px 72px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}
.hero-headline {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 20px;
}
.hero-lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 420px;
}
.hero-cta-wrap {
  margin-top: 28px;
}
.btn-primary {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(27,67,50,0.25);
}
.btn-primary:hover {
  background: var(--green-mid);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(27,67,50,0.3);
}
.hero-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.metric-accent {
  border-color: var(--green);
  background: var(--green);
}
.metric-accent .metric-number,
.metric-accent .metric-label { color: #fff; }
.metric-number {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}
.metric-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.hero-shape {
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(27,67,50,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* ── Features ── */
.features {
  padding: 80px 24px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--green);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 16px;
}
.feature-title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}
.feature-desc {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── Proof ── */
.proof {
  padding: 80px 24px;
  background: var(--green);
  color: #fff;
}
.proof-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.proof-quote-mark {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 5rem;
  line-height: 0.5;
  color: var(--accent-warm);
  margin-bottom: 20px;
  opacity: 0.6;
}
.proof-quote {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.5;
  color: #fff;
  margin-bottom: 20px;
}
.proof-attr {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  font-style: italic;
}
.proof-right {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.proof-stat {}
.proof-number {
  display: block;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-warm);
  line-height: 1;
  margin-bottom: 6px;
}
.proof-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
}

/* ── Philosophy ── */
.philosophy {
  padding: 80px 24px;
  border-top: 1px solid var(--border);
}
.philosophy-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.philosophy-label-row {
  margin-bottom: 48px;
}
.philosophy-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.philosophy-num {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  opacity: 0.25;
  line-height: 1;
  display: block;
  margin-bottom: 12px;
}
.philosophy-title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}
.philosophy-text {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── Closing ── */
.closing {
  padding: 96px 24px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  text-align: center;
}
.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}
.closing-headline {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 16px;
}
.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
}
.closing-cta {
  margin-top: 32px;
}

/* ── Footer ── */
.site-footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
}
.footer-os { color: var(--green); }
.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .proof-inner { grid-template-columns: 1fr; gap: 48px; }
  .philosophy-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 20px 56px; }
  .features, .philosophy { padding: 56px 20px; }
  .proof { padding: 56px 20px; }
  .closing { padding: 64px 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .nav-tagline { display: none; }
}