:root {
  --bg: #0f0f1a;
  --surface: #17172a;
  --surface2: #1e1e35;
  --border: #2a2a45;
  --fg: #f0f0f5;
  --fg-muted: #8888aa;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --green: #22c55e;
  --green-dim: rgba(34, 197, 94, 0.12);
  --radius: 10px;
}

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

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

/* NAV */
nav {
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--fg);
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  padding-left: 16px;
  border-left: 1px solid var(--border);
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding: 80px 40px 80px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}
.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(36px, 4vw, 54px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 420px;
}

/* DASHBOARD */
.hero-dashboard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.dash-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.dash-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.dash-dot.green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dash-title { font-size: 13px; font-weight: 600; flex: 1; color: var(--fg); }
.dash-live {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
  background: var(--green-dim);
  padding: 3px 8px;
  border-radius: 4px;
}
.dash-rows { padding: 8px 0; }
.dash-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(42,42,69,0.5);
}
.dash-row:last-child { border-bottom: none; }
.row-label { font-size: 13px; color: var(--fg-muted); }
.row-val { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 16px; color: var(--fg); }
.row-delta { font-size: 11px; color: var(--fg-muted); }
.row-delta.up { color: var(--green); }
.dash-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--fg-muted);
}

/* FLOW */
.flow {
  padding: 80px 40px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.section-title {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 48px;
}
.section-title.light { color: var(--fg); }
.flow-grid {
  display: grid;
  grid-template-columns: 1fr 40px 1fr 40px 1fr 40px 1fr;
  gap: 0;
  align-items: start;
}
.flow-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.flow-step h3 {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
}
.flow-step p { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }
.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 40px;
}
.flow-arrow::after {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--border);
}

/* PRINCIPLES */
.principles {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 40px;
}
.principles-inner { max-width: 1200px; margin: 0 auto; }
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}
.principle {
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color 0.2s;
}
.principle:hover { border-color: rgba(245,158,11,0.3); }
.principle-icon { margin-bottom: 20px; }
.principle h3 {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
}
.principle p { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }

/* SUPPLIERS */
.suppliers {
  padding: 80px 40px;
  max-width: 1200px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.suppliers-sub {
  font-size: 16px;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.supplier-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}
.supplier-chip {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: 8px;
}
.supplier-note {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
}

/* CLOSING */
.closing {
  padding: 100px 40px;
  background: var(--bg);
}
.closing-inner { max-width: 1200px; margin: 0 auto; }
.closing-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.12;
  color: var(--fg);
  margin-bottom: 28px;
}
.closing-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 620px;
  line-height: 1.75;
}

/* FOOTER */
footer {
  padding: 32px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 16px;
  color: var(--fg);
}
.footer-copy { font-size: 13px; color: var(--fg-muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 60px 24px; }
  .flow-grid { grid-template-columns: 1fr; }
  .flow-arrow { display: none; }
  .principles-grid { grid-template-columns: 1fr 1fr; }
  .flow, .suppliers, .closing { padding: 60px 24px; }
  .principles { padding: 60px 24px; }
}
@media (max-width: 600px) {
  .principles-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: 34px; }
  nav { padding: 16px 24px; }
}