:root {
  color-scheme: light;
  --ink: #17243b;
  --muted: #5a6679;
  --paper: #ffffff;
  --wash: #f3f6fb;
  --line: #d8e0ec;
  --blue: #165dba;
  --blue-dark: #0c438d;
  --green: #0c7853;
  --amber: #8a5a00;
  --red: #a22f2f;
  --shadow: 0 18px 50px rgba(28, 46, 78, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: linear-gradient(180deg, #eaf2ff 0, var(--wash) 380px);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}
.skip-link:focus { top: 12px; }

main { width: min(960px, calc(100% - 28px)); margin: 34px auto 56px; }
.hero, .panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.hero { padding: clamp(26px, 5vw, 48px); }
.panel { margin-top: 20px; padding: clamp(22px, 4vw, 34px); }
.eyebrow { margin: 0 0 8px; color: var(--blue-dark); font-weight: 800; letter-spacing: 0.03em; }
h1 { margin: 0; font-size: clamp(1.75rem, 5vw, 3rem); line-height: 1.25; letter-spacing: -0.02em; }
h2 { margin: 0 0 18px; font-size: clamp(1.25rem, 3vw, 1.6rem); }
h3 { margin: 0 0 8px; }
.lead { max-width: 760px; font-size: 1.08rem; color: var(--muted); }
.privacy-banner {
  display: grid;
  gap: 2px;
  margin-top: 22px;
  padding: 16px 18px;
  border-left: 5px solid var(--green);
  border-radius: 12px;
  background: #eefaf5;
}
.privacy-banner span, small, .link-note { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field label { display: block; margin-bottom: 6px; font-weight: 750; }
.field small { display: block; margin-top: 5px; }
select, input {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #aebbd0;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
select:focus, input:focus, button:focus, a:focus {
  outline: 3px solid rgba(22, 93, 186, 0.27);
  outline-offset: 3px;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
button {
  min-height: 48px;
  padding: 11px 18px;
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.primary { background: var(--blue); color: #fff; }
.primary:hover { background: var(--blue-dark); }
.secondary { background: #e8edf5; color: var(--ink); }
.result { padding: 22px; border: 2px solid var(--line); border-radius: 15px; }
.result.pass { border-color: var(--green); background: #eefaf5; }
.result.hold { border-color: var(--amber); background: #fff8e8; }
.result.stop { border-color: var(--red); background: #fff1f1; }
.result.neutral { background: #f8fafc; }
.result section + section { margin-top: 18px; }
.result-heading { font-size: 1.2rem; }
.official-links { display: grid; gap: 10px; padding-left: 1.2rem; }
.official-links a { color: var(--blue-dark); font-weight: 800; text-underline-offset: 3px; }
.link-note { display: block; font-size: 0.9rem; }
.privacy-note { padding: 10px 12px; border-radius: 8px; background: rgba(255, 255, 255, 0.72); }
.check-list { columns: 2; }
.facts dl { display: grid; gap: 0; }
.facts dl div { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 13px 0; border-top: 1px solid var(--line); }
.facts dt { font-weight: 800; }
.facts dd { margin: 0; }
footer { padding: 0 20px 40px; text-align: center; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 700px) {
  main { margin-top: 18px; }
  .grid { grid-template-columns: 1fr; }
  .check-list { columns: 1; }
  .facts dl div { grid-template-columns: 1fr; gap: 2px; }
  .actions button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}