:root {
  --bg: #08080c;
  --bg-surface: #0f0f14;
  --bg-card: #141419;
  --fg: #f0f0f5;
  --fg-muted: #8a8a99;
  --accent: #a855f7;
  --accent-bright: #c084fc;
  --accent-dim: rgba(168, 85, 247, 0.15);
  --border: rgba(255, 255, 255, 0.07);
  --card-shadow: 0 0 60px rgba(168, 85, 247, 0.12);
}

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

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

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 40px;
  background: rgba(8, 8, 12, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.wordmark {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.5px;
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-text h1 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}
.lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 440px;
}

/* Card stack */
.hero-visual {
  display: flex;
  justify-content: center;
}
.card-stack {
  position: relative;
  width: 280px;
  height: 320px;
}
.card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 28px 24px;
  width: 260px;
  box-shadow: var(--card-shadow);
}
.card-1 { top: 0; left: 0; z-index: 3; transform: rotate(-4deg); }
.card-2 { top: 50px; left: 30px; z-index: 2; transform: rotate(2deg); }
.card-3 { top: 100px; left: 10px; z-index: 1; transform: rotate(-1deg); }
.card-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-bright);
  font-weight: 600;
  margin-bottom: 8px;
}
.card-value {
  font-family: 'Syne', sans-serif;
  font-size: 52px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
  margin-bottom: 4px;
}
.card-unit {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ── HOW ── */
.how {
  padding: 100px 40px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-header { margin-bottom: 60px; }
.how-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
}
.pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.step { }
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.step h3 {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fg);
}
.step p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── MANIFESTO ── */
.manifesto {
  padding: 120px 40px;
  text-align: center;
}
.manifesto-inner { max-width: 780px; margin: 0 auto; }
.manifesto blockquote {
  font-family: 'Syne', sans-serif;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.5px;
  color: var(--fg);
  font-style: normal;
  margin-bottom: 32px;
}
.manifesto-sub {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* ── CLOSING ── */
.closing {
  padding: 100px 40px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}
.closing-inner { max-width: 1100px; margin: 0 auto; }
.closing h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}
.closing p {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* ── FOOTER ── */
footer {
  padding: 40px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand { display: flex; flex-direction: column; gap: 4px; }
.footer-desc { font-size: 13px; color: var(--fg-muted); }
.footer-links { font-size: 14px; color: var(--fg-muted); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 16px 20px; }
  .hero { padding: 100px 20px 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { display: none; }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .how { padding: 80px 20px; }
  .manifesto { padding: 80px 20px; }
  .closing { padding: 80px 20px; }
  .footer-inner { flex-direction: column; gap: 12px; }
}
@media (max-width: 480px) {
  .pipeline { grid-template-columns: 1fr; }
}