:root {
  --navy: #0D1B3E;
  --navy-deep: #081227;
  --navy-light: #142a5c;
  --cyan: #0EA5E9;
  --cyan-soft: rgba(14, 165, 233, 0.15);
  --white: #F5F8FC;
  --muted: #9FB0D0;
  --border: rgba(159, 176, 208, 0.18);
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

.wrap {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Background hex/grid texture */
.hexbg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-color: var(--navy);
  background-image:
    linear-gradient(rgba(14,165,233,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

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

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 27, 62, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.brand-ai { color: var(--cyan); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  font-weight: 500;
}

.main-nav a:hover { color: var(--cyan); }

.nav-cta {
  background: var(--cyan);
  color: var(--navy-deep);
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
}

.nav-cta:hover { color: var(--navy-deep); opacity: 0.9; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--cyan);
  color: var(--navy-deep);
}

.btn-primary:hover { opacity: 0.92; color: var(--navy-deep); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--white);
}

.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.eyebrow, .section-eyebrow {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}

.hero h1 {
  font-size: 52px;
  line-height: 1.12;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-graphic {
  position: absolute;
  right: -60px;
  top: 0;
  width: 60%;
  height: 100%;
  z-index: 1;
  opacity: 0.8;
  pointer-events: none;
}

.hero-graphic svg { width: 100%; height: 100%; }

/* Sections */
.section { padding: 100px 0; border-top: 1px solid var(--border); }

.section h2 {
  font-size: 34px;
  margin-bottom: 16px;
  max-width: 640px;
}

.section-lead {
  color: var(--muted);
  font-size: 17px;
  max-width: 680px;
  margin-bottom: 56px;
}

/* Pipeline */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}

.pipeline-node {
  flex: 1 1 0;
  min-width: 0;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 22px;
  min-height: 260px;
}

.pipeline-num {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--cyan);
  margin-bottom: 12px;
}

.pipeline-node h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.pipeline-tag {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

.pipeline-desc {
  color: var(--muted);
  font-size: 14px;
}

.pipeline-arrow {
  flex: 0 0 auto;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 20px;
  align-self: center;
}

.pipeline-footnote {
  margin-top: 48px;
  color: var(--muted);
  font-size: 15px;
  max-width: 800px;
  border-left: 2px solid var(--cyan);
  padding-left: 20px;
}

/* Audience */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.audience-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
}

.audience-card h3 {
  font-size: 20px;
  color: var(--cyan);
  margin-bottom: 12px;
}

.audience-card p { color: var(--muted); font-size: 15px; }

/* Sample output */
.sample-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.sample-copy p { color: var(--muted); font-size: 16px; margin-bottom: 28px; max-width: 480px; }

.doc-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}

.doc-card-header {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}

.tlp {
  background: var(--cyan-soft);
  color: var(--cyan);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
}

.doc-line {
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  margin-bottom: 12px;
}

.w-100 { width: 100%; }
.w-90 { width: 90%; }
.w-80 { width: 80%; }
.w-70 { width: 70%; }
.w-60 { width: 60%; }

.doc-priority {
  margin: 20px 0 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  background: rgba(14,165,233,0.1);
  border-left: 3px solid var(--cyan);
  padding: 8px 12px;
}

/* Early access */
.early-access-section { text-align: center; }

.early-access-inner h2 { max-width: 100%; margin: 0 auto 16px; }

.early-access-inner > p {
  color: var(--muted);
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 40px;
}

.early-access-form {
  display: flex;
  gap: 12px;
  max-width: 620px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.early-access-form input {
  flex: 1;
  min-width: 200px;
  padding: 14px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--navy-light);
  color: var(--white);
  font-family: var(--sans);
  font-size: 15px;
}

.early-access-form input::placeholder { color: var(--muted); }

.early-access-form input:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.footer-sep { opacity: 0.5; }

/* Responsive */
@media (max-width: 960px) {
  .pipeline { flex-direction: column; gap: 20px; }
  .pipeline-arrow { display: none; }
  .audience-grid { grid-template-columns: 1fr; }
  .sample-inner { grid-template-columns: 1fr; }
  .hero-graphic { display: none; }
  .hero h1 { font-size: 38px; }
  .main-nav { display: none; }
}