:root {
  --bg: #0f0f0f;
  --bg-card: #171717;
  --bg-card-hover: #1f1f1f;
  --fg: #f5f0e8;
  --fg-muted: #8a8a8a;
  --accent: #ff6b35;
  --accent-dim: rgba(255, 107, 53, 0.15);
  --border: rgba(245, 240, 232, 0.1);
  --border-strong: rgba(245, 240, 232, 0.2);
  --glow: rgba(255, 107, 53, 0.12);
  --radius: 4px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 60px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(15, 15, 15, 0.9);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* HERO */
.hero {
  min-height: 85vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
  padding: 100px 60px 80px;
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: -10%;
  width: 70%;
  height: 80%;
  background: radial-gradient(ellipse at center, var(--glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.65;
}
.hero-visual {
  display: flex;
  justify-content: center;
}
.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 28px 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 0 60px rgba(0,0,0,0.5), 0 0 120px rgba(255,107,53,0.05);
}
.agent-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.status-label {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  font-weight: 500;
}
.agent-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.agent-action {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--fg);
}
.action-icon {
  font-size: 1.1rem;
  color: var(--accent);
  width: 20px;
  text-align: center;
}

/* BENEFITS */
.benefits {
  padding: 80px 60px;
  border-top: 1px solid var(--border);
}
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.benefit-card {
  background: var(--bg);
  padding: 48px 40px;
  transition: background 0.2s;
}
.benefit-card:hover { background: var(--bg-card); }
.benefit-card.benefit-primary { grid-column: span 2; background: var(--bg-card); }
.benefit-card.benefit-offset { margin-top: 40px; }
.benefit-number {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}
.benefit-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 12px;
}
.benefit-card p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 440px;
}

/* HOW IT WORKS */
.howitworks {
  padding: 80px 60px;
  border-top: 1px solid var(--border);
}
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin-bottom: 56px;
  max-width: 560px;
}
.steps {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
}
.step { padding-top: 0; }
.step-marker {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 20px;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 12px;
}
.step p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* MANIFESTO */
.manifesto {
  padding: 100px 60px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}
.manifesto blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.025em;
  color: var(--fg);
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

/* CLOSING */
.closing {
  padding: 80px 60px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin-bottom: 20px;
}
.closing p {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

/* FOOTER */
.footer {
  padding: 40px 60px;
  border-top: 1px solid var(--border);
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 6px;
}
.footer-tagline {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero {
    grid-template-columns: 1fr;
    padding: 60px 24px 60px;
    gap: 48px;
  }
  .hero-visual { order: -1; }
  .agent-card { max-width: 100%; }
  .benefits { padding: 48px 24px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .benefit-card.benefit-primary { grid-column: span 1; }
  .benefit-card.benefit-offset { margin-top: 0; }
  .howitworks { padding: 48px 24px; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .manifesto { padding: 64px 24px; }
  .closing { padding: 64px 24px; }
  .footer { padding: 32px 24px; }
}
/* Nav CTA button */
.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-body);
  text-decoration: none;
  transition: opacity 0.15s;
}

.btn-nav-cta:hover {
  opacity: 0.88;
}