/* Quantum Blue LLC — landing page styles
   All colors and gradients come from tokens.css (single source of truth).
   Brand spec: c:\Claude\docs\superpowers\specs\2026-05-18-quantum-blue-ai-branding-design.md */

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

html, body {
  background: var(--qb-deep-space);
  color: var(--qb-cool-white);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- type scale (per brand spec §4) --- */
.h2 {
  font-size: 24px;
  line-height: 32px;
  font-weight: 600;
  letter-spacing: -0.025em;
}
.body {
  font-size: 16px;
  line-height: 26px;
  font-weight: 400;
}
.meta-label {
  font-family: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  font-size: 11px;
  line-height: 16px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--qb-slate);
}

/* --- hero --- */
.hero {
  min-height: 100vh;
  background: var(--qb-gradient-hero);
  padding: 40px 80px;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.wordmark-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.qb-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.qb-icon-text {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.04em;
}

.wordmark {
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--qb-cool-white);
}

.hero-phrase {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding-bottom: 60px;
}

.hero-line {
  display: block;
  font-weight: 600;
  font-size: 92px;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.hero-accent {
  background: var(--qb-gradient-accent-light);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --- ventures --- */
.ventures {
  background: var(--qb-quantum-navy);
  padding: 96px 80px;
}

.ventures-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.ventures h2 {
  margin-bottom: 48px;
}

.ventures-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
}

.venture {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.venture .body {
  color: var(--qb-cool-white);
}

/* --- footer --- */
.site-footer {
  background: var(--qb-deep-space);
  border-top: 1px solid rgba(148, 163, 184, 0.18);  /* Slate 30% — see notes in plan */
  padding: 32px 80px;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-wordmark {
  font-size: 13px;
  line-height: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--qb-slate);
}

/* --- responsive --- */
@media (max-width: 800px) {
  .hero {
    padding: 24px 24px 40px;
  }
  .hero-line {
    font-size: 48px;
  }
  .wordmark {
    font-size: 18px;
  }
  .qb-icon {
    width: 32px;
    height: 32px;
  }
  .ventures {
    padding: 64px 24px;
  }
  .ventures-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .site-footer {
    padding: 24px;
  }
  .site-footer-inner {
    flex-direction: column;
    gap: 12px;
  }
}

@media (min-width: 801px) and (max-width: 1100px) {
  .hero-line {
    font-size: 64px;
  }
  .ventures-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}