:root {
  --nav-bg: #0A1628;
  --bg: #060E1A;
  --bg-2: #0B1929;
  --accent: #00D4AA;
  --accent-dim: rgba(0,212,170,0.12);
  --warn: #F59E0B;
  --critical: #EF4444;
  --ok: #10B981;
  --text: #E8EEF5;
  --text-muted: #7A90A6;
  --border: rgba(255,255,255,0.07);
  --font-head: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(6,14,26,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
  height: 64px;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* SECTION SHARED */
.section-inner { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.col-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 100px;
  position: relative;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,170,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,170,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
.hero-inner {
  position: relative;
  max-width: 900px;
}
.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--accent);
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 56px;
  line-height: 1.7;
}
.hero-metric-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.hero-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-metric-val {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.hero-metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* PROBLEM */
.problem { padding: 120px 0; border-top: 1px solid var(--border); }
.problem-col-label {
  margin-bottom: 32px;
}
.problem-headline {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 700px;
  margin-bottom: 24px;
  line-height: 1.2;
}
.problem-body {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 64px;
  font-size: 1.05rem;
  line-height: 1.7;
}
.problem-stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.problem-stat {
  background: var(--bg-2);
  padding: 32px;
}
.problem-stat-num {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 8px;
}
.problem-stat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* AGENT */
.agent {
  padding: 120px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.agent .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.agent-headline {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 24px;
}
.agent-body {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}
.agent-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.agent-features li {
  font-size: 0.9rem;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}
.agent-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
/* Screen / live feed */
.agent-visual { display: flex; justify-content: center; }
.agent-screen {
  background: #0B1929;
  border: 1px solid rgba(0,212,170,0.2);
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 0 60px rgba(0,212,170,0.08);
}
.screen-label {
  padding: 12px 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0,212,170,0.07);
  border-bottom: 1px solid rgba(0,212,170,0.1);
}
.signal-feed { padding: 12px 0; }
.signal-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
}
.signal-item:last-child { border-bottom: none; }
.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-ok { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.dot-warn { background: var(--warn); box-shadow: 0 0 6px var(--warn); }
.dot-critical { background: var(--critical); box-shadow: 0 0 6px var(--critical); }
.signal-text { flex: 1; font-size: 0.8rem; color: var(--text-muted); }
.signal-time { font-size: 0.72rem; color: #4A6080; flex-shrink: 0; }

/* HOW */
.how { padding: 120px 0; border-top: 1px solid var(--border); }
.how-headline {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
  text-align: center;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.how-step {
  background: var(--bg);
  padding: 40px 32px;
}
.step-number {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 20px;
  line-height: 1;
}
.step-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.step-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* COMPLIANCE */
.compliance { padding: 120px 0; background: var(--bg-2); border-top: 1px solid var(--border); }
.compliance-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.compliance-headline {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}
.compliance-body { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; margin-bottom: 32px; }
.compliance-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid rgba(0,212,170,0.3);
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 4px;
}
/* Audit card */
.audit-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.78rem;
}
.audit-card-label {
  padding: 12px 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.audit-entry {
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.audit-entry:last-child { border-bottom: none; }
.audit-done { background: rgba(0,212,170,0.03); }
.audit-time { color: #4A6080; flex-shrink: 0; font-family: monospace; }
.audit-action { color: var(--text-muted); }

/* CLOSING */
.closing { padding: 120px 0; border-top: 1px solid var(--border); }
.closing-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 24px;
}
.closing-body {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

/* FOOTER */
.footer { padding: 48px 0; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 40px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-name { font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; color: var(--accent); display: block; }
.footer-desc { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal { font-size: 0.75rem; color: var(--text-muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .agent .section-inner,
  .compliance-inner { grid-template-columns: 1fr; gap: 48px; }
  .how-steps { grid-template-columns: 1fr 1fr; }
  .hero { padding: 100px 24px 80px; }
  .section-inner { padding: 0 24px; }
}
@media (max-width: 600px) {
  .how-steps { grid-template-columns: 1fr; }
  .hero-metric-row { gap: 24px; }
  .problem-stat-row { grid-template-columns: 1fr; }
  .nav { padding: 0 20px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}