:root {
  --bg-primary: #0A1628;
  --bg-secondary: #0E1E35;
  --bg-card: #111E33;
  --fg-primary: #E8E6DF;
  --fg-secondary: #8899AA;
  --fg-muted: #4A5A6B;
  --accent: #14F0C8;
  --accent-dim: rgba(20, 240, 200, 0.12);
  --accent-mid: rgba(20, 240, 200, 0.25);
  --border: rgba(136, 153, 170, 0.12);
  --border-accent: rgba(20, 240, 200, 0.3);
  --font-display: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1200px;
  --section-py: 100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.nav-label {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--fg-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  padding: 160px 40px 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(20, 240, 200, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 240, 200, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 60% 50%, black 30%, transparent 70%);
}
.hero-inner {
  flex: 1;
  max-width: 620px;
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border-accent);
  padding: 4px 12px;
  border-radius: 3px;
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero-accent { color: var(--accent); }
.hero-sub {
  font-size: 17px;
  color: var(--fg-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-meta { display: flex; align-items: center; gap: 16px; }
.hero-meta-item { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-badge {
  font-size: 12px;
  padding: 4px 12px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-accent);
  border-radius: 2px;
  letter-spacing: 0.05em;
}

/* DIAGRAM PANEL */
.hero-diagram-panel {
  flex: 0 0 360px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px;
  position: relative;
  z-index: 2;
}
.diagram-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}
.pipeline {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 32px;
}
.pipeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--fg-secondary);
  letter-spacing: 0.05em;
}
.node-icon {
  width: 44px; height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.pipeline-arrow { padding: 0 2px; }
.pipeline-node.node-output .node-icon {
  background: rgba(20, 240, 200, 0.2);
  border-color: var(--accent);
}
.output-types {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.output-tag {
  font-size: 10px;
  padding: 3px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--fg-secondary);
  letter-spacing: 0.05em;
}

/* SECTIONS */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}
.section-tag {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 56px;
}

/* WHAT IS */
.what-is {
  padding: var(--section-py) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.what-is-badge { color: var(--fg-secondary); }
.what-is-headline {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}
.stats-row {
  display: flex;
  gap: 40px;
  align-items: center;
  margin-bottom: 56px;
}
.stat { max-width: 200px; }
.stat-value {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.stat-label { font-size: 13px; color: var(--fg-secondary); line-height: 1.4; }
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}
.what-is-copy { max-width: 600px; }
.what-is-copy p {
  color: var(--fg-secondary);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 16px;
}

/* DELIVERABLES */
.deliverables {
  padding: var(--section-py) 0;
}
.del-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.del-card {
  background: var(--bg-card);
  padding: 32px;
  transition: background 0.2s;
}
.del-card:hover { background: #142338; }
.del-icon {
  width: 44px; height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}
.del-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.del-card p {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* HOW IT WORKS */
.how-it-works {
  padding: var(--section-py) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}
.arch-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px;
}
.arch-num {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.04em;
}
.arch-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.arch-card p {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* STANDARDS */
.standards {
  padding: var(--section-py) 0;
}
.standards-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.standards-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}
.standards-body {
  font-size: 16px;
  color: var(--fg-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}
.standards-list { display: flex; flex-direction: column; gap: 12px; }
.std-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--fg-secondary);
}
.std-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* COMPLIANCE DIAGRAM */
.standards-right {
  display: flex;
  align-items: center;
  justify-content: center;
}
.compliance-diagram { display: flex; justify-content: center; }
.compliance-ring {
  position: relative;
  width: 260px;
  height: 260px;
}
.ring-segment {
  position: absolute;
  width: 50%;
  height: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring-segment span {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-secondary);
}
.seg-1 { top: 0; left: 50%; transform-origin: left center; }
.seg-2 { bottom: 0; left: 50%; transform-origin: left center; }
.seg-3 { bottom: 0; right: 50%; transform-origin: right center; }
.seg-4 { top: 0; right: 50%; transform-origin: right center; }
.ring-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 90px; height: 90px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring-center span {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
}

/* CLOSING */
.closing {
  padding: var(--section-py) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  text-align: center;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto 32px;
}
.closing-sub {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.01em;
}

/* FOOTER */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}
.footer-note {
  font-size: 13px;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { flex-direction: column; padding-top: 120px; }
  .hero-diagram-panel { flex: none; width: 100%; }
  .stats-row { flex-direction: column; gap: 24px; }
  .stat-divider { display: none; }
  .stat { max-width: 100%; }
  .standards-content { grid-template-columns: 1fr; }
  .standards-right { display: none; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .section-inner, .nav-inner { padding: 0 20px; }
  .hero { padding: 120px 20px 80px; }
}
@media (max-width: 600px) {
  .hero-headline { font-size: 30px; }
  .arch-grid, .del-grid { grid-template-columns: 1fr; }
}