:root {
  --optic-blue: #01bbff;
  --optic-sky: #6fe3ff;
  --optic-ice: #e6f9ff;
  --optic-navy: #0a2540;
  --optic-midnight: #052238;
  --optic-ink: #0f172a;
  --optic-slate: #64748b;
  --optic-mist: #e2e8f0;
  --optic-cloud: #f7fafc;
  --optic-green: #10b981;
  --maxw: 64rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--optic-ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--optic-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--optic-mist);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 4rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand img { height: 2rem; width: auto; display: block; }
.brand .name { font-weight: 700; font-size: 1.15rem; color: var(--optic-navy); letter-spacing: -0.01em; }
.brand .name span { color: var(--optic-blue); }
.nav a { color: var(--optic-navy); font-size: 0.9rem; font-weight: 500; margin-left: 1.5rem; }
.nav a:hover { color: var(--optic-blue); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--optic-midnight), var(--optic-navy) 60%);
  color: #fff;
  padding: 5.5rem 0 5rem;
}
.hero .eyebrow {
  text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.72rem;
  font-weight: 600; color: var(--optic-sky); margin: 0 0 1rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.1; margin: 0 0 1.25rem;
  font-weight: 800; letter-spacing: -0.02em; max-width: 46rem;
}
.hero p.lede { font-size: 1.15rem; color: #cfe9f5; max-width: 40rem; margin: 0 0 2rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.btn {
  display: inline-block; padding: 0.75rem 1.4rem; border-radius: 0.6rem;
  font-weight: 600; font-size: 0.95rem;
}
.btn-primary { background: var(--optic-blue); color: var(--optic-midnight); }
.btn-primary:hover { background: var(--optic-sky); text-decoration: none; }
.btn-ghost { border: 1px solid rgba(255,255,255,0.25); color: #fff; }
.btn-ghost:hover { border-color: var(--optic-sky); text-decoration: none; }

/* Sections */
section.block { padding: 4rem 0; }
section.block.alt { background: var(--optic-cloud); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); color: var(--optic-navy); margin: 0 0 0.75rem; letter-spacing: -0.01em; }
.section-lede { color: var(--optic-slate); max-width: 42rem; margin: 0 0 2rem; }

.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.card {
  background: #fff; border: 1px solid var(--optic-mist); border-radius: 0.9rem;
  padding: 1.4rem;
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.05rem; color: var(--optic-navy); }
.card p { margin: 0; color: var(--optic-slate); font-size: 0.95rem; }

.pill-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.pill {
  border: 1px solid var(--optic-mist); border-radius: 999px;
  padding: 0.35rem 0.85rem; font-size: 0.85rem; color: var(--optic-navy);
  background: #fff;
}

.callout {
  border-left: 3px solid var(--optic-blue); background: var(--optic-ice);
  padding: 1.25rem 1.5rem; border-radius: 0 0.6rem 0.6rem 0; margin-top: 1.5rem;
}
.callout p { margin: 0; color: var(--optic-navy); }

/* Legal pages */
.legal { padding: 3.5rem 0 4rem; }
.legal h1 { font-size: 2.25rem; color: var(--optic-navy); margin: 0 0 0.25rem; letter-spacing: -0.02em; }
.legal .updated { color: var(--optic-slate); font-size: 0.9rem; margin: 0 0 2rem; }
.legal h2 { font-size: 1.25rem; margin: 2rem 0 0.5rem; }
.legal p, .legal li { color: #334155; }
.legal ul { padding-left: 1.25rem; }
.legal table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin: 1rem 0; }
.legal th, .legal td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--optic-mist); vertical-align: top; }
.legal th { color: var(--optic-navy); }

/* Footer */
.site-footer { background: var(--optic-midnight); color: #9fb6c6; padding: 3rem 0; font-size: 0.9rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; }
.site-footer a { color: #cfe9f5; }
.site-footer .legal-name { color: #cfe9f5; font-weight: 600; }
.site-footer .links a { margin-left: 1.25rem; }
.eyebrow-dark { text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.7rem; color: var(--optic-blue); font-weight: 600; }

/* Early-access form */
.ea-form { max-width: 40rem; }
.ea-form label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--optic-navy); margin-bottom: 0.9rem; }
.ea-form input, .ea-form select {
  display: block; width: 100%; margin-top: 0.35rem; padding: 0.6rem 0.7rem;
  font-size: 0.95rem; font-weight: 400; color: var(--optic-ink);
  border: 1px solid var(--optic-mist); border-radius: 0.5rem; background: #fff;
}
.ea-form input:focus, .ea-form select:focus { outline: 2px solid var(--optic-blue); outline-offset: 0; border-color: var(--optic-blue); }
.ea-row { display: grid; gap: 0 1rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 36rem) { .ea-row { grid-template-columns: 1fr; } }
.ea-form button { margin-top: 0.5rem; cursor: pointer; border: 0; }
.ea-note { margin-top: 0.9rem; font-size: 0.8rem; color: var(--optic-slate); font-weight: 400; }