:root {
  --bg: #0f172a;
  --bg-soft: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe3ef;
  --primary: #1d4ed8;
  --primary-dark: #163aa7;
  --white: #ffffff;
  --card: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-soft);
  line-height: 1.6;
}
.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}
.narrow {
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
}
.site-header {
  background: var(--bg);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1rem;
}
.brand {
  color: var(--white);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.125rem;
}
nav a {
  color: rgba(255,255,255,0.88);
  text-decoration: none;
  margin-left: 1rem;
}
nav a.active, nav a:hover { color: var(--white); }
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%);
  color: var(--white);
  padding: 5rem 0 4rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 2rem;
  align-items: start;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .8rem;
  font-weight: 700;
  opacity: .85;
}
h1, h2, h3 { line-height: 1.15; margin: 0 0 1rem; }
h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.2rem; }
.lead { font-size: 1.1rem; max-width: 60ch; }
.section { padding: 4rem 0; }
.section.alt { background: #edf4ff; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.25rem 1.25rem;
  box-shadow: 0 8px 24px rgba(15,23,42,.05);
}
.hero .card {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  border-color: rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.split {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 1.25rem;
  align-items: start;
}
.checklist, .link-list { padding-left: 1.1rem; margin: .5rem 0 0; }
.checklist li, .link-list li { margin-bottom: .5rem; }
.link-list a { color: var(--primary-dark); text-decoration: none; }
.cta-row { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.5rem; }
.button {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
  padding: .85rem 1.1rem;
  border-radius: 12px;
  border: none;
  font-weight: 700;
  cursor: pointer;
}
.button:hover { background: var(--primary-dark); }
.button-secondary {
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.24);
}
.form label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
}
.form input, .form select, .form textarea {
  width: 100%;
  padding: .8rem .9rem;
  border: 1px solid #c9d4e5;
  border-radius: 12px;
  font: inherit;
  margin-top: .35rem;
}
.notice {
  background: #fff7e6;
  border: 1px solid #f2d39b;
  color: #6b4d1f;
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.muted { color: var(--muted); }
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--white);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 0;
}
.footer-links a {
  color: var(--primary-dark);
  text-decoration: none;
  margin-left: 1rem;
}
@media (max-width: 820px) {
  .hero-grid, .grid-3, .split, .footer-grid {
    grid-template-columns: 1fr;
    display: grid;
  }
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
  nav a { margin-left: 0; margin-right: .8rem; }
}