:root {
  --forest-green: #22563a;
  --forest-green-hover: #1a432d;
  --thames-blue: #1e293b;
  --slate: #475569;
  --muted-green: #ecfdf5;
  --white: #fff;
  --bg-gray: #f8fafc;
  --border: #e2e8f0;
  --amber: #92400e;
  --amber-soft: #fffbeb;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--white);
  color: var(--slate);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.68;
  margin: 0;
}
a { color: var(--forest-green); font-weight: 700; }
.container { margin: 0 auto; max-width: 1100px; padding: 0 1.25rem; }
.top-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.top-bar .container {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 72px;
}
.brand { color: var(--thames-blue); font-weight: 850; line-height: 1.12; text-decoration: none; }
.nav-link { font-size: 0.92rem; text-decoration: none; }
.hero { background: var(--thames-blue); color: var(--white); padding: 4.5rem 0 4rem; }
.hero .inner { max-width: 820px; }
.eyebrow {
  color: #a7f3d0;
  display: block;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}
h1, h2, h3 { color: var(--thames-blue); line-height: 1.18; }
h1 { color: var(--white); font-size: clamp(2.1rem, 5vw, 3.45rem); margin: 0 0 1rem; }
.hero p { color: #e2e8f0; font-size: 1.16rem; margin: 0; max-width: 720px; }
.answer-card {
  background: var(--muted-green);
  border-left: 5px solid var(--forest-green);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.08rem;
  margin: 2rem 0;
  padding: 1.25rem 1.4rem;
}
.answer-card p:last-child { margin-bottom: 0; }
.article { max-width: 850px; padding-bottom: 4rem; padding-top: 2rem; }
.article h2 { font-size: 1.75rem; margin: 2.7rem 0 0.8rem; }
.article h3 { font-size: 1.25rem; margin: 1.7rem 0 0.5rem; }
.article p, .article li { font-size: 1.04rem; }
.article li { margin-bottom: 0.45rem; }
.article table { border-collapse: collapse; margin: 1.3rem 0 2rem; width: 100%; }
.article th, .article td { border: 1px solid var(--border); padding: 0.75rem; text-align: left; vertical-align: top; }
.article th { background: var(--thames-blue); color: var(--white); }
.article tr:nth-child(even) td { background: var(--bg-gray); }
.notice {
  background: var(--amber-soft);
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  color: #78350f;
  margin: 1.5rem 0;
  padding: 1.1rem 1.25rem;
}
.review {
  border-bottom: 1px solid var(--border);
  color: #64748b;
  font-size: 0.9rem;
  padding: 1rem 0;
}
.review p { margin: 0; }
.source-list {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.source-list h2 { font-size: 1.25rem; margin-top: 0; }
.source-list li { font-size: 0.95rem; }
.cta {
  background: var(--thames-blue);
  border-radius: var(--radius);
  color: #e2e8f0;
  margin: 3rem 0 0;
  padding: 2rem;
}
.cta h2 { color: var(--white); margin-top: 0; }
.btn {
  background: var(--forest-green);
  border-radius: 8px;
  color: var(--white);
  display: inline-block;
  font-weight: 850;
  padding: 0.85rem 1.15rem;
  text-decoration: none;
}
.btn:hover { background: var(--forest-green-hover); }
.link-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.link-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: block;
  padding: 1.1rem;
  text-decoration: none;
}
.link-card span { color: var(--slate); display: block; font-size: 0.93rem; font-weight: 400; }
footer { background: #111827; color: #94a3b8; font-size: 0.88rem; padding: 2rem 0; }
footer p { margin: 0; }

@media (max-width: 640px) {
  .hero { padding: 3.2rem 0; }
  .article { overflow-x: hidden; }
  .article table { display: block; overflow-x: auto; }
}