:root {
  --ink: #0f172a;
  --secondary: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --surface: #ffffff;
  --surface-subtle: #f8fafc;
  --primary: #2563eb;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--surface-subtle); color: var(--ink); line-height: 1.65; }
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-inner, main, .site-footer { width: min(100% - 40px, 900px); margin: 0 auto; }
.header-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: var(--ink); font-size: 1.1rem; font-weight: 750; text-decoration: none; letter-spacing: -.02em; }
.brand span { color: var(--primary); }
.header-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.back-link, .site-nav a { color: var(--secondary); font-size: .9rem; text-decoration: none; }
.back-link:hover, .site-nav a:hover { color: var(--primary); text-decoration: underline; }
main { padding: 62px 0; }
.eyebrow { margin: 0 0 10px; color: var(--primary); font-size: .78rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2rem, 6vw, 3.25rem); letter-spacing: -.045em; line-height: 1.1; }
.lede { max-width: 720px; margin: 20px 0 40px; color: var(--secondary); font-size: 1.12rem; }
.card { margin: 18px 0; padding: 28px 30px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: 0 1px 2px rgba(15, 23, 42, .03); }
h2 { margin: 0 0 10px; font-size: 1.25rem; letter-spacing: -.02em; }
h3 { margin-bottom: 6px; font-size: 1rem; }
p, li { color: var(--secondary); }
p:last-child { margin-bottom: 0; }
ul { padding-left: 21px; }
a { color: var(--primary); }
.notice { border-left: 4px solid #93c5fd; background: #eff6ff; color: #1e3a8a; }
.notice p { color: #1e3a8a; }
.home-main { max-width: 1040px; }
.hero { max-width: 790px; padding: 34px 0 48px; }
.hero h1 { max-width: 760px; }
.hero .lede { margin-bottom: 26px; }
.primary-link, .text-link { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; font-weight: 700; }
.primary-link { padding: 0 18px; color: #fff; background: var(--primary); border-radius: 8px; box-shadow: 0 5px 12px rgba(37, 99, 235, .2); }
.primary-link:hover { background: #1d4ed8; }
.text-link { margin-left: 18px; font-weight: 650; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.feature-grid .card { margin: 0; min-height: 176px; }
.home-section { margin-top: 40px; }
.faq details { padding: 16px 0; border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 700; }
.faq details p { margin: 10px 0 0; }
.small-print { color: var(--muted); font-size: .82rem; }
form { display: grid; gap: 16px; max-width: 520px; }
label { display: grid; gap: 6px; color: var(--ink); font-weight: 650; }
input { width: 100%; min-height: 44px; padding: 9px 11px; border: 1px solid #cbd5e1; border-radius: 7px; font: inherit; }
form button { border: 0; cursor: pointer; font: inherit; justify-self: start; }
form button:disabled { opacity: .65; cursor: wait; }
.notice { padding: 14px 16px; border-left: 4px solid #93c5fd; background: #eff6ff; color: #1e3a8a; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0 36px; color: var(--muted); font-size: .85rem; }
.site-nav { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 640px) {
  .header-inner, .site-footer { align-items: flex-start; flex-direction: column; padding-top: 18px; padding-bottom: 18px; }
  main { padding: 40px 0; }
  .card { padding: 22px; }
  .hero { padding: 12px 0 32px; }
  .feature-grid { grid-template-columns: 1fr; }
  .text-link { margin-left: 12px; }
}