:root {
  --ink: #061425;
  --navy: #0a1f3b;
  --navy-soft: #102f56;
  --ice: #a8d4f0;
  --frost: #dceefa;
  --white: #ffffff;
  --copy: rgba(255, 255, 255, 0.76);
  --muted: rgba(255, 255, 255, 0.52);
  --line: rgba(168, 212, 240, 0.16);
  --heading: "Playfair Display", Georgia, serif;
  --body: "Montserrat", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--white);
  background: var(--ink);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 72px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 20, 37, 0.95);
  backdrop-filter: blur(16px);
}
.site-nav img { display: block; width: auto; height: 58px; }
.nav-links { display: flex; align-items: center; gap: 1.4rem; }
.nav-links a { color: var(--copy); font-size: 0.76rem; font-weight: 600; text-decoration: none; }
.nav-links .nav-cta { padding: 0.68rem 1rem; border: 1px solid var(--ice); color: var(--ice); }

.hero {
  padding: clamp(5rem, 10vw, 8.5rem) 5vw clamp(4rem, 8vw, 6.5rem);
  background:
    radial-gradient(circle at 82% 2%, rgba(30, 80, 144, 0.34), transparent 42%),
    linear-gradient(180deg, var(--navy) 0%, var(--ink) 100%);
}
.hero-inner, .article, .footer-inner { width: min(100%, 980px); margin: 0 auto; }
.back-link, .kicker, .section-label {
  color: var(--ice);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.back-link { display: inline-block; margin-bottom: 2rem; text-decoration: none; }
h1 {
  max-width: 950px;
  margin: 0;
  font-family: var(--heading);
  font-size: clamp(2.65rem, 6.4vw, 5.8rem);
  font-weight: 400;
  line-height: 0.98;
  text-wrap: balance;
}
.hero-sub { max-width: 840px; margin: 1.6rem 0 0; color: var(--copy); font-size: 1.12rem; line-height: 1.75; }
.hero-meta { margin-top: 1.8rem; color: var(--muted); font-size: 0.78rem; }

.article { padding: 4rem 24px 7rem; }
.direct-answer, .related-reading, .source-notes, .cta-block {
  margin: 0 0 3rem;
  padding: 1.8rem 2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(10, 31, 59, 0.72);
}
.direct-answer { border-left: 3px solid var(--ice); }
.article h2 {
  margin: 4.5rem 0 1rem;
  font-family: var(--heading);
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 400;
  line-height: 1.08;
  text-wrap: balance;
}
.article h3 { margin: 2.2rem 0 0.7rem; font-size: 1.1rem; line-height: 1.45; }
.article p, .article li { color: var(--copy); font-size: 1.03rem; line-height: 1.9; }
.article p { margin: 1rem 0; }
.article li { margin-bottom: 0.55rem; }
.article a { color: var(--frost); text-underline-offset: 0.18em; }
.article strong { color: var(--white); }
.article ol, .article ul { padding-left: 1.5rem; }
.related-reading h2, .source-notes h2, .cta-block h2 { margin-top: 0; }
.source-notes p, .source-notes li { font-size: 0.9rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.2rem; }
.cta-actions a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 1.15rem;
  border: 1px solid var(--ice);
  color: var(--ice);
  text-decoration: none;
}
.faq-item { padding: 0.4rem 0 1rem; border-bottom: 1px solid var(--line); }
.author-card { margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.author-card p { font-size: 0.95rem; }
.site-footer { border-top: 1px solid var(--line); background: #040b16; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; padding: 1.4rem 24px; color: var(--muted); font-size: 0.8rem; }

@media (max-width: 720px) {
  .site-nav { padding: 0 20px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding-inline: 22px; }
  .article { padding-inline: 22px; }
  .direct-answer, .related-reading, .source-notes, .cta-block { padding: 1.35rem; }
  .footer-inner { flex-direction: column; }
}