/* ── Variables ── */
:root {
  --blue:       #2563eb;
  --blue-light: #dbeafe;
  --blue-dark:  #1d4ed8;
  --ink:        #0f172a;
  --body:       #475569;
  --muted:      #94a3b8;
  --border:     #e2e8f0;
  --divider:    #f1f5f9;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: #fff;
}

/* ── Nav ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__mark {
  width: 28px;
  height: 28px;
  background: var(--blue);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.nav__wordmark {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav__badge {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

/* ── Hero ── */
.hero {
  background: linear-gradient(160deg, #f8faff 0%, #eff6ff 100%);
  padding: 64px 40px 56px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.hero__pill {
  display: inline-block;
  background: var(--blue-light);
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
}

.hero__heading {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  max-width: 560px;
}

.hero__body {
  font-size: 16px;
  color: var(--body);
  line-height: 1.7;
  max-width: 480px;
}

.hero__cta {
  border: 2px solid var(--blue);
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}

/* ── Pillars ── */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--divider);
}

.pillar {
  padding: 36px 32px;
  text-align: center;
  border-right: 1px solid var(--divider);
}

.pillar:last-child {
  border-right: none;
}

.pillar__icon {
  font-size: 24px;
  margin-bottom: 12px;
}

.pillar__heading {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pillar__body {
  font-size: 13px;
  color: var(--body);
  line-height: 1.6;
}

/* ── Footer ── */
.footer {
  background: #f8fafc;
  border-top: 1px solid var(--border);
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav    { padding: 16px 20px; }
  .hero   { padding: 48px 20px 40px; }

  .pillars {
    grid-template-columns: 1fr;
  }

  .pillar {
    border-right: none;
    border-bottom: 1px solid var(--divider);
  }

  .pillar:last-child { border-bottom: none; }

  .footer {
    padding: 16px 20px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}