:root {
  --ink: #0e1a16;
  --ink-soft: #2c3a34;
  --muted: #5d6f67;
  --line: #e6eae7;
  --bg: #ffffff;
  --bg-alt: #f6f8f7;
  --accent: #176b5a;
  --accent-bright: #4db89a;
  --max: 1080px;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(14, 26, 22, 0.04), 0 12px 32px rgba(14, 26, 22, 0.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 48px);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }

.site-nav { display: flex; align-items: center; gap: clamp(16px, 3vw, 32px); }
.site-nav a { font-size: 15px; font-weight: 500; color: var(--ink-soft); transition: color 0.15s ease; }
.site-nav a:hover { color: var(--accent); }
.nav-cta {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink) !important;
}
.nav-cta:hover { border-color: var(--accent); background: var(--bg-alt); }

/* ---------- Layout primitives ---------- */
main { display: block; }
section { padding: clamp(64px, 10vw, 120px) clamp(20px, 5vw, 48px); }
.section-title {
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.section-sub { color: var(--muted); font-size: 18px; max-width: 56ch; margin-bottom: 48px; }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: clamp(72px, 12vw, 140px);
  padding-bottom: clamp(56px, 9vw, 110px);
  text-align: left;
}
.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.hero h1 {
  font-weight: 800;
  font-size: clamp(34px, 5.8vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
}
.hero h1 .accent { color: var(--accent); }
.lede { font-size: clamp(17px, 2vw, 21px); color: var(--ink-soft); max-width: 58ch; margin-bottom: 38px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex;
  align-items: center;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 999px;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Approach ---------- */
.approach { max-width: var(--max); margin: 0 auto; background: var(--bg); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-top: 40px; }
.card {
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-alt);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-num { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 16px; }
.card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { color: var(--muted); font-size: 15.5px; }

/* ---------- Ventures ---------- */
.ventures { background: var(--bg-alt); }
.ventures .section-title, .ventures .section-sub { max-width: var(--max); margin-left: auto; margin-right: auto; }
.venture-list {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.venture {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.venture-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.venture-head h3 { font-weight: 700; font-size: 23px; letter-spacing: -0.02em; }
.tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(23, 107, 90, 0.08);
  padding: 5px 11px;
  border-radius: 999px;
  white-space: nowrap;
}
.venture p { color: var(--ink-soft); font-size: 16px; margin-bottom: 22px; flex: 1; }
.venture-link { font-weight: 600; font-size: 15px; color: var(--accent); align-self: flex-start; }
.venture-link span { transition: transform 0.15s ease; display: inline-block; }
.venture-link:hover span { transform: translateX(4px); }
.venture-link--soon { color: var(--muted); font-weight: 500; cursor: default; }

/* ---------- Contact ---------- */
.contact { max-width: var(--max); margin: 0 auto; text-align: center; }
.contact .section-sub { margin-left: auto; margin-right: auto; }
.email-link {
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease;
}
.email-link:hover { border-color: var(--accent-bright); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #fff; padding: 40px clamp(20px, 5vw, 48px); }
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.footer-meta { color: rgba(255, 255, 255, 0.55); font-size: 14px; }

@media (max-width: 560px) {
  .brand-name { display: none; }
  .hero { text-align: left; }
}