:root {
  --bg: #ffffff;
  --ink: #0e1726;
  --muted: #5b6678;
  --line: #e6e8ee;
  --brand: #0b3d91;
  --brand-2: #1d6fe0;
  --accent: #ffce3a;
  --max: 880px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.hero {
  background: linear-gradient(160deg, #0b3d91 0%, #1d6fe0 100%);
  color: #fff;
  padding: 0 0 4rem;
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.brand span { color: var(--accent); }

.nav-link {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
}
.nav-link:hover { color: #fff; }

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.25rem 0;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.lede {
  font-size: 1.13rem;
  color: rgba(255,255,255,0.92);
  max-width: 36em;
  margin: 0 0 2rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-size: 0.95rem;
  margin: 0;
}

.cta-pill {
  background: var(--accent);
  color: #1a1300;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

main { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

.section {
  padding: 3.5rem 0 1rem;
  border-bottom: 1px solid var(--line);
}
.section:last-of-type { border-bottom: none; }

.section-alt {
  background: #f7f8fb;
  margin: 0 -1.25rem;
  padding: 3.5rem 1.25rem;
  border-radius: 0;
  border-bottom: 1px solid var(--line);
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.7rem);
  letter-spacing: -0.015em;
  margin: 0 0 1.25rem;
  font-weight: 700;
}

p { margin: 0 0 1rem; }

.muted { color: var(--muted); font-size: 0.97rem; }

details {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}
details:first-of-type { border-top: 1px solid var(--line); }

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
  position: relative;
  padding-right: 1.75rem;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+";
  position: absolute;
  right: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--brand);
  font-weight: 400;
  transition: transform 0.15s;
}
details[open] summary::after { content: "\2212"; }

details > p {
  margin: 0.85rem 0 0;
  color: var(--muted);
}

.footer {
  max-width: var(--max);
  margin: 2rem auto 3rem;
  padding: 1.5rem 1.25rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
  text-align: center;
}

@media (max-width: 600px) {
  .hero { padding-bottom: 3rem; }
  .hero-inner { padding-top: 2.5rem; }
  .cta { flex-direction: column; align-items: flex-start; gap: 0.55rem; padding: 0.85rem 1rem; }
  .section, .section-alt { padding: 2.5rem 0 0.5rem; }
  .section-alt { padding-left: 1.25rem; padding-right: 1.25rem; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1320;
    --ink: #e8ebf2;
    --muted: #98a2b6;
    --line: #1f2a3d;
  }
  .section-alt { background: #131a2a; }
  .cta-pill { color: #1a1300; }
}