:root {
  --bg: #090E17;
  --bg-alt: #0F172A;
  --bg-card: #0F172A;
  --fg: #E2E8F0;
  --fg-muted: #94A3B8;
  --accent: #F59E0B;
  --accent-secondary: #84CC16;
  --accent-blue: #3B82F6;
  --accent-green: #22C55E;
  --accent-red: #EF4444;
  --border: #1E293B;
  --border-strong: #334155;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Fira Code', monospace;
}

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

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

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

/* Navigation */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  background: rgba(9,14,23,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--fg); }

/* Sections */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-headline {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 20px;
}
.section-sub {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: #090E17;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  font-family: var(--font-display);
}
.btn-primary:hover { background: #D97706; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary.btn-large { padding: 16px 32px; font-size: 1.0625rem; border-radius: 10px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  color: var(--fg-muted);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  transition: border-color 0.2s, color 0.2s;
  font-family: var(--font-display);
}
.btn-ghost:hover { border-color: var(--fg-muted); color: var(--fg); }

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 32px 60px;
}
.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 100px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.badge-text { color: var(--fg-muted); }
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-headline {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}
.headline-accent {
  color: var(--accent);
  -webkit-text-stroke: 0px;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 420px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}
.meta-sep { color: var(--border-strong); }

/* Simulation canvas */
.sim-frame {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(245,158,11,0.08), 0 24px 48px rgba(0,0,0,0.5);
}
.sim-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  padding: 10px 16px 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.sim-scene { position: relative; }
.sim-svg { display: block; width: 100%; }
.sim-overlay {
  position: absolute;
  bottom: 12px; left: 12px; right: 12px;
  display: flex;
  gap: 8px;
}
.sim-stat {
  background: rgba(9,14,23,0.9);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  backdrop-filter: blur(8px);
}
.sim-stat-warn { border-color: rgba(239,68,68,0.4); }
.stat-value {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--fg);
  display: block;
  line-height: 1.2;
}
.stat-label {
  font-size: 0.65rem;
  color: var(--fg-muted);
  display: block;
  font-family: var(--font-mono);
}
.sim-legend {
  display: flex;
  gap: 16px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
}
.legend-dot { width: 8px; height: 8px; border-radius: 50%; }

/* How It Works */
.howitworks { padding: 100px 0; }
.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  margin-top: 60px;
  align-items: start;
}
.step { padding: 0 20px; }
.step-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.step-body h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.step-body p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}
.step-visual svg { width: 100%; border-radius: 10px; border: 1px solid var(--border); display: block; }
.step-connector {
  width: 1px;
  height: 160px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
  margin-top: 40px;
  opacity: 0.3;
}
.how-cta { margin-top: 48px; }

/* Build Section */
.build-section { padding: 100px 0; background: var(--bg-alt); }
.build-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.feature-list {
  list-style: none;
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.5;
}
.feature-list li svg { flex-shrink: 0; margin-top: 1px; }

/* UI Frame */
.ui-frame {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.ui-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.ui-dot { width: 10px; height: 10px; border-radius: 50%; }
.ui-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  margin-left: 8px;
}
.ui-body { padding: 12px; }
.ui-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
  flex-wrap: wrap;
}
.tool-group { display: flex; gap: 4px; }
.tool-btn {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg-muted);
  cursor: pointer;
  transition: background 0.15s;
}
.tool-btn:hover { background: var(--border); color: var(--fg); }
.tool-active { background: var(--border-strong); color: var(--accent); border-color: var(--accent); }
.tool-presets { display: flex; gap: 6px; }
.preset-chip {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 4px 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--fg-muted);
  cursor: pointer;
}
.preset-active { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); color: var(--accent); }
.ui-canvas { position: relative; }
.ui-canvas svg { display: block; border-radius: 8px; }
.ui-properties {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.prop-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 5px 10px;
  background: var(--bg-alt);
  border-radius: 6px;
}
.prop-label { color: var(--fg-muted); }
.prop-value { color: var(--fg); }

/* Simulate Section */
.simulate-section { padding: 100px 0; }
.simulate-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.run-frame {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.run-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.run-title { font-weight: 600; font-size: 0.875rem; }
.run-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green);
}
.pulse-dot {
  width: 8px; height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
.run-svg { display: block; width: 100%; }
.run-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.ctrl-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
  cursor: pointer;
  transition: background 0.15s;
}
.ctrl-btn:hover { background: var(--border); }
.ctrl-pause { color: var(--accent); }
.ctrl-speed { display: flex; align-items: center; gap: 8px; }
.speed-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-muted); }
.speed-dots { display: flex; gap: 3px; }
.speed-dot { width: 8px; height: 8px; border-radius: 2px; background: var(--border-strong); }
.speed-active { background: var(--accent); }
.speed-val { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent); font-weight: 500; }
.ctrl-timer { margin-left: auto; }
.timer-val { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 500; color: var(--fg); }
.timer-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-muted); }

/* Analyze Section */
.analyze-section { padding: 100px 0; background: var(--bg-alt); }
.analyze-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
.analyze-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}
.card-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.analyze-card svg { display: block; width: 100%; border-radius: 6px; }
.heatmap-legend {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  flex-wrap: wrap;
}
.hm-swatch {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
  margin-right: 4px;
  vertical-align: middle;
}
.analyze-stats {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  gap: 12px;
}
.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.stat-icon {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border-radius: 8px;
  flex-shrink: 0;
}
.stat-info { flex: 1; }
.stat-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--fg);
}
.stat-desc {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.4;
  margin-top: 2px;
}
.recommendation {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 24px;
  padding: 16px 20px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: 10px;
}
.recommendation svg { flex-shrink: 0; margin-top: 2px; }
.recommendation p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.6; }
.recommendation strong { color: var(--fg); }

/* Use Cases */
.usecases { padding: 100px 0; }
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.usecase-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.usecase-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.usecase-icon { margin-bottom: 16px; }
.usecase-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.usecase-card p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Manifesto */
.manifesto { padding: 100px 0; background: var(--bg-alt); }
.manifesto-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.manifesto-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}
.manifesto-headline {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 36px;
}
.manifesto-body p {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 20px;
  text-align: left;
}
.manifesto-statement {
  font-size: 1.25rem !important;
  color: var(--fg) !important;
  font-weight: 600;
  padding: 24px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: 12px;
  margin-top: 32px;
}

/* Closing */
.closing { padding: 100px 0; }
.closing-content {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.closing-headline {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  margin-bottom: 40px;
  line-height: 1.7;
}
.closing-actions { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.closing-meta { font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-muted); }

/* Footer */
.footer { padding: 48px 0; border-top: 1px solid var(--border); }
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
}
.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--fg); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-family: var(--font-mono);
}

/* Agent animations */
@keyframes flow-a {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(20px, -15px); }
  50%  { transform: translate(50px, 5px); }
  75%  { transform: translate(30px, 25px); }
  100% { transform: translate(0, 0); }
}
.agent-a { animation: flow-a 8s ease-in-out infinite; }
.agent-b { animation: flow-a 9s ease-in-out infinite 0.5s; }
.agent-c { animation: flow-a 7.5s ease-in-out infinite 1s; }
.agent-d { animation: flow-a 8.5s ease-in-out infinite 1.5s; }
.agent-e { animation: flow-a 7s ease-in-out infinite 0.3s; }
.agent-f { animation: flow-a 9.5s ease-in-out infinite 0.8s; }
.agent-g { animation: flow-a 8s ease-in-out infinite 1.2s; }
.agent-h { animation: flow-a 7.5s ease-in-out infinite 0.6s; }
.agent-i { animation: flow-a 8s ease-in-out infinite 2s; }
.agent-j { animation: flow-a 9s ease-in-out infinite 1.8s; }
.agent-k { animation: flow-a 7s ease-in-out infinite 0.2s; }
.agent-l { animation: flow-a 8.5s ease-in-out infinite 0.4s; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .build-layout,
  .simulate-layout,
  .analyze-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .step-connector { display: none; }
  .usecases-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .hero { padding: 80px 20px 40px; }
  .usecases-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .analyze-stats { grid-template-rows: none; grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}