/* LayerOps — Dark, Technical, Intelligent */
:root {
  --bg: #09090D;
  --surface: #111118;
  --surface-2: #1A1A24;
  --accent: #E8A838;
  --accent-dim: rgba(232, 168, 56, 0.12);
  --text: #F2F2F5;
  --text-muted: #8A8A9A;
  --text-dim: #55556A;
  --border: rgba(255,255,255,0.06);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(9, 9, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.wordmark {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.tagline {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 32px 80px;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 80px;
  left: 32px;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.4;
}
.hero-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 28px;
  font-weight: 500;
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(52px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-headline em {
  font-style: normal;
  color: var(--accent);
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 56px;
  font-weight: 300;
}
.hero-metric-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.hero-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.metric-val {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.metric-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* Stats */
.stats-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 72px 32px;
}
.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.stats-quote {
  font-size: 22px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.5;
  font-style: italic;
  font-family: 'DM Sans', sans-serif;
}
.stats-source {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 12px;
}
.stat-big {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 80px;
  letter-spacing: -0.05em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}
.stat-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Features */
.features {
  padding: 120px 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-weight: 500;
}
.section-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 4vw, 52px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 72px;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}
.feature-card {
  background: var(--bg);
  padding: 40px 36px;
  position: relative;
}
.feature-number {
  font-family: 'Syne', sans-serif;
  font-weight: 400;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 20px;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* How */
.how-section {
  background: var(--surface);
  padding: 100px 32px;
}
.how-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.how-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(32px, 3.5vw, 46px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  position: sticky;
  top: 100px;
}
.how-right {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.how-step {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 20px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.how-step:last-child {
  border-bottom: none;
}
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  padding-top: 4px;
}
.how-step h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 17px;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.how-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.closing-inner {
  max-width: 760px;
}
.closing-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(38px, 5vw, 62px);
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text);
  margin-bottom: 36px;
}
.closing-body {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.75;
  font-weight: 300;
  max-width: 580px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.wordmark-sm {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 16px;
}
.footer-note {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Responsive */
@media (max-width: 768px) {
  .stats-inner, .how-inner, .feature-grid {
    grid-template-columns: 1fr;
  }
  .stats-inner { gap: 40px; }
  .how-headline { position: static; }
  .hero-metric-row { gap: 28px; }
  .hero { padding: 120px 20px 60px; }
  .features, .closing { padding: 80px 20px; }
  .how-section { padding: 80px 20px; }
  .footer-inner { flex-direction: column; gap: 12px; align-items: flex-start; }
  .nav-inner { padding: 16px 20px; }
}