:root {
  --bg: #0D0D0F;
  --surface: #141418;
  --border: #1E1E24;
  --text: #F4F4F5;
  --text-dim: #71717A;
  --cyan: #00E5FF;
  --amber: #FFB800;
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
}

/* Navigation */
.nav {
  padding: 24px 40px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-tagline {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 40px 100px;
  overflow: hidden;
}
.hero-mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(0,229,255,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 30%, rgba(255,184,0,0.05) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero-lede {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim);
  max-width: 560px;
  line-height: 1.5;
}

/* Manifesto */
.manifesto {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}
.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
}
.manifesto-heading {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 36px;
  color: var(--cyan);
}
.manifesto-body {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 24px;
  line-height: 1.7;
}
.manifesto-body:last-child { margin-bottom: 0; }

/* Capabilities */
.capabilities {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.capabilities-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}
.cap-card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
}
.cap-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,229,255,0.1);
  border-radius: 10px;
  color: var(--cyan);
  margin-bottom: 20px;
}
.cap-title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}
.cap-desc {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* How It Works */
.how {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}
.how-inner {
  max-width: 800px;
  margin: 0 auto;
}
.how-heading {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}
.how-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.how-step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.how-num {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.05em;
  padding-top: 4px;
  min-width: 36px;
}
.how-text h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}
.how-text p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, rgba(0,229,255,0.03) 100%);
}
.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.closing-heading {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}
.closing-body {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 24px;
}
.closing-body:last-child {
  font-size: 20px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 0;
}

/* Footer */
.footer {
  padding: 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
}
.footer-copy {
  font-size: 14px;
  color: var(--text-dim);
}

/* Mobile */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 80px 24px 70px; }
  .manifesto, .capabilities, .how, .closing { padding: 70px 24px; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}