:root {
  --bg: #f7f8fb;
  --ink: #1a1a2e;
  --muted: #556;
  --accent: #4f6bed;
  --line: #e6e8ef;
  --card: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Nunito Sans", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

a { color: var(--accent); }
a:hover { text-decoration: underline; }

.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid transparent;
}
.brand {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}
.topnav-cta {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  background: var(--accent);
  padding: 0.55rem 1rem;
  border-radius: 999px;
}
.footer a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

.hero {
  padding: 3.5rem 1.25rem 2rem;
  background: #0b1b33;
  color: #fff;
}
.hero-inner, .wrap, .footer-inner {
  max-width: 880px;
  margin: 0 auto;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  line-height: 1.25;
}
.hero p {
  margin: 0;
  color: rgba(255,255,255,0.86);
  font-size: 1.05rem;
  max-width: 42rem;
}
.breadcrumb {
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}
.breadcrumb a { color: #fff; }

.content {
  padding: 2rem 1.25rem 3rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
}
.card h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.1rem;
}
.card p, .card li {
  color: var(--muted);
}
.card ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0 0;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.related {
  display: grid;
  gap: 0.75rem;
}
.related a {
  display: block;
  padding: 0.9rem 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}
.related a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.faq-item + .faq-item {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.25rem 2rem;
  background: #fff;
  font-size: 0.9rem;
  color: var(--muted);
}
.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-top: 0.75rem;
}
.footer a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

@media (max-width: 640px) {
  .topnav { align-items: flex-start; flex-direction: column; }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}
.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}