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

:root {
  --bg: #09090b;
  --fg: #f4f4f5;
  --accent: #b4f42a;
  --accent-dim: rgba(180, 244, 42, 0.12);
  --muted: #71717a;
  --border: rgba(255,255,255,0.08);
  --surface: rgba(255,255,255,0.04);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 0 32px; }
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 12px; padding: 20px 0; }
.nav-logo { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.nav-badge { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; background: var(--accent-dim); color: var(--accent); padding: 4px 10px; border-radius: 20px; }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; padding: 120px 32px 80px; }
.hero-bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%); pointer-events: none; }
.hero-content { max-width: 1200px; margin: 0 auto; width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.hero-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: 28px; }
.label-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-headline { font-family: var(--font-display); font-size: clamp(52px, 6vw, 80px); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 28px; }
.hero-headline .line { display: block; }
.hero-headline .accent { color: var(--accent); }
.hero-sub { font-size: 18px; line-height: 1.65; color: #a1a1aa; max-width: 480px; margin-bottom: 48px; }
.hero-stat-row { display: flex; align-items: center; gap: 32px; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 13px; color: var(--muted); }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* AGENT WINDOW */
.agent-window { background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: 0 32px 64px rgba(0,0,0,0.4); }
.agent-header { display: flex; align-items: center; gap: 10px; padding: 14px 18px; background: rgba(255,255,255,0.06); border-bottom: 1px solid var(--border); }
.agent-dots { display: flex; gap: 6px; }
.agent-dots span { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,0.15); }
.agent-title { font-size: 13px; color: var(--muted); font-weight: 500; }
.agent-feed { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.feed-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); }
.feed-item.done .feed-icon { color: var(--accent); font-size: 14px; }
.feed-item.active { border-color: rgba(180, 244, 42, 0.3); background: rgba(180, 244, 42, 0.05); }
.feed-item.active .feed-title { color: var(--fg); }
.feed-icon { flex-shrink: 0; margin-top: 2px; }
.feed-icon.pulse { color: var(--accent); font-size: 10px; animation: pulse-dot 1.5s infinite; }
.feed-title { font-size: 13px; font-weight: 500; margin-bottom: 2px; }
.feed-sub { font-size: 12px; color: var(--muted); }

/* PROOF */
.proof { padding: 64px 32px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.proof-label { text-align: center; font-size: 13px; color: var(--muted); letter-spacing: 0.04em; margin-bottom: 24px; }
.proof-logos { display: flex; justify-content: center; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 48px; }
.proof-logo-text { font-family: var(--font-display); font-size: 15px; font-weight: 600; color: rgba(255,255,255,0.3); }
.proof-sep { color: var(--border); }
.proof-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); max-width: 700px; margin: 0 auto; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.proof-metric { background: var(--bg); padding: 28px; text-align: center; }
.proof-num { display: block; font-family: var(--font-display); font-size: 32px; font-weight: 700; color: var(--accent); margin-bottom: 6px; }
.proof-sub { font-size: 13px; color: var(--muted); }

/* HOW */
.how { padding: 100px 32px; }
.section-label { font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.section-headline { font-family: var(--font-display); font-size: clamp(32px, 4vw, 48px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; max-width: 600px; margin-bottom: 64px; }
.how-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.step { padding: 40px; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); }
.step:nth-child(even) { border-right: none; }
.step:nth-last-child(-n+2) { border-bottom: none; }
.step-num { font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; color: var(--accent); margin-bottom: 16px; }
.step-body h3 { font-family: var(--font-display); font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.step-body p { font-size: 15px; color: #a1a1aa; line-height: 1.7; }

/* FEATURES */
.features { padding: 100px 32px; background: rgba(255,255,255,0.015); }
.features .section-headline { margin-bottom: 56px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.feature-card { background: var(--bg); padding: 32px; }
.feature-card.accent-card { background: linear-gradient(135deg, rgba(180,244,42,0.08) 0%, var(--bg) 60%); }
.feature-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-dim); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--accent); }
.feature-card h3 { font-family: var(--font-display); font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: #a1a1aa; line-height: 1.65; }

/* CYCLE */
.cycle { padding: 100px 32px; }
.cycle-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.cycle-headline { font-family: var(--font-display); font-size: clamp(36px, 5vw, 56px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 24px; }
.cycle-body { font-size: 17px; color: #a1a1aa; line-height: 1.7; margin-bottom: 56px; }
.cycle-diagram { display: flex; align-items: center; justify-content: center; gap: 0; flex-wrap: wrap; }
.node { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 24px; text-align: center; }
.node-label { font-family: var(--font-display); font-size: 14px; font-weight: 600; }
.node-research { border-color: rgba(180, 244, 42, 0.3); }
.node-research .node-label { color: #a1a1aa; }
.node-reach { border-color: rgba(180, 244, 42, 0.3); }
.node-reach .node-label { color: #d4f02a; }
.node-monitor .node-label { color: #a1a1aa; }
.node-book { border-color: rgba(180, 244, 42, 0.3); }
.node-book .node-label { color: var(--accent); }
.node-learn { border-color: rgba(255,255,255,0.1); }
.node-learn .node-label { color: var(--muted); }
.arrow { font-size: 20px; color: var(--border); padding: 0 4px; }
.arrow.loop { font-size: 18px; color: var(--accent); padding: 0 8px; }

/* CLOSING */
.closing { padding: 120px 32px; }
.closing-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.closing-headline { font-family: var(--font-display); font-size: clamp(40px, 6vw, 72px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 28px; }
.closing-sub { font-size: 18px; color: #a1a1aa; line-height: 1.7; max-width: 560px; margin: 0 auto; }

/* FOOTER */
.footer { padding: 32px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { font-family: var(--font-display); font-weight: 700; font-size: 16px; }
.footer-tagline { font-size: 13px; color: var(--muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; gap: 48px; }
  .hero-right { display: none; }
  .hero-headline { font-size: 44px; }
  .how-steps { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--border); }
  .step:nth-last-child(-n+2) { border-bottom: 1px solid var(--border); }
  .step:last-child { border-bottom: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .proof-metrics { grid-template-columns: 1fr; }
  .cycle-diagram { gap: 8px; }
  .arrow { display: none; }
  .arrow.loop { display: inline; }
}
@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero { padding: 100px 20px 60px; }
  .hero-stat-row { gap: 20px; }
  .stat-num { font-size: 22px; }
}