:root {
  --bg: #0a0b0f;
  --bg-elevated: #12131a;
  --bg-card: #181923;
  --fg: #e8e6e1;
  --fg-muted: #8a8a96;
  --fg-dim: #5a5a68;
  --accent: #c9f73d;
  --accent-dim: #a8d42e;
  --accent-glow: rgba(201, 247, 61, 0.12);
  --red: #ff5f57;
  --yellow: #ffbd2e;
  --green: #28c840;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1120px;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px 24px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.02em;
}

/* === HERO === */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 24px 80px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(201, 247, 61, 0.25);
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}

/* === TERMINAL === */
.hero-visual {
  width: 100%;
}

.terminal {
  background: var(--bg-elevated);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 14px;
  line-height: 1.8;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }

.terminal-title {
  margin-left: auto;
  font-size: 12px;
  color: var(--fg-dim);
}

.terminal-body {
  padding: 20px;
}

.line {
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.prompt { color: var(--accent); font-weight: 600; }
.cmd { color: var(--fg); }
.muted { color: var(--fg-dim); }
.highlight { color: var(--accent); }
.success { color: var(--green); font-weight: 600; }

.fade-1 { animation: fadeIn 0.5s 0.4s both; }
.fade-2 { animation: fadeIn 0.5s 0.8s both; }
.fade-3 { animation: fadeIn 0.5s 1.2s both; }
.fade-4 { animation: fadeIn 0.5s 1.6s both; }
.fade-5 { animation: fadeIn 0.5s 2.0s both; }

.blink .cursor {
  animation: blink 1s step-end infinite;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* === SIGNAL SECTION === */
.section-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.signal {
  background: var(--bg-elevated);
  padding: 100px 24px;
}

.signal-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.signal h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.signal h2 em {
  font-style: italic;
  color: var(--accent);
}

.signal-desc {
  color: var(--fg-muted);
  max-width: 600px;
  margin-bottom: 56px;
  font-size: 18px;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.signal-card:hover {
  border-color: rgba(201, 247, 61, 0.2);
}

.signal-icon {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 16px;
}

.signal-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.signal-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* === HOW SECTION === */
.how {
  padding: 100px 24px;
}

.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  color: rgba(201, 247, 61, 0.15);
  line-height: 1;
  min-width: 80px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 16px;
  max-width: 500px;
}

/* === NUMBERS SECTION === */
.numbers {
  background: var(--bg-elevated);
  padding: 100px 24px;
}

.numbers-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.numbers h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.compare-grid {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.compare-col {
  flex: 1;
  min-width: 260px;
  max-width: 400px;
  padding: 40px 36px;
  border-radius: var(--radius);
}

.compare-col.human {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
}

.compare-col.ai {
  background: rgba(201, 247, 61, 0.06);
  border: 1px solid rgba(201, 247, 61, 0.2);
}

.compare-header {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 32px;
  color: var(--fg-muted);
}

.compare-col.ai .compare-header {
  color: var(--accent);
}

.compare-item {
  margin-bottom: 24px;
}

.compare-val {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.compare-col.ai .compare-val {
  color: var(--accent);
}

.compare-label {
  display: block;
  color: var(--fg-dim);
  font-size: 14px;
  margin-top: 4px;
}

.compare-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg-dim);
  padding: 0 24px;
}

/* === CLOSING === */
.closing {
  padding: 120px 24px;
  text-align: center;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 18px;
  line-height: 1.75;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
}

.footer-text {
  color: var(--fg-dim);
  font-size: 14px;
}

/* === RESPONSIVE === */
@media (min-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 60px 24px 100px;
  }
}

@media (max-width: 640px) {
  .step {
    flex-direction: column;
    gap: 12px;
  }
  .step-num {
    font-size: 40px;
    min-width: auto;
  }
  .compare-grid {
    flex-direction: column;
    align-items: center;
  }
  .compare-vs {
    padding: 16px 0;
  }
  .compare-col {
    width: 100%;
    max-width: 100%;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}