:root {
  --ink: #151a18;
  --navy: #082e50;
  --blue: #0b4f82;
  --lime: #b8ee62;
  --soft: #f3f7f8;
  --line: #d8e1e3;
  --muted: #52605c;
  --danger: #8a2f24;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  --serif: Georgia, "Hiragino Mincho ProN", "Yu Mincho", serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--soft); font-family: var(--sans); font-size: 17px; line-height: 1.85; }
button, a { font: inherit; }
a { color: inherit; }
.shell { width: min(1040px, calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: absolute; top: -5rem; left: 1rem; z-index: 20; padding: 8px 12px; color: #fff; background: var(--navy); }
.skip-link:focus { top: 1rem; }
.hidden { display: none !important; }

.site-header { position: sticky; top: 0; z-index: 30; color: #fff; background: var(--navy); }
.site-header__inner { display: flex; min-height: 82px; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: block; width: 196px; padding: 8px 12px; border-radius: 6px; background: #fff; line-height: 0; }
.brand img { display: block; width: 100%; height: auto; }
.site-header__inner>div { text-align: right; }
.product-hub, .site-header span { display: block; }
.product-hub { color: #fff; font-size: 15px; font-weight: 800; text-decoration: none; }
.product-hub:hover { color: var(--lime); }
.site-header span { color: rgba(255,255,255,.76); font-size: 12px; }

.screening-main { width: min(880px, calc(100% - 32px)); min-height: calc(100vh - 170px); margin: 42px auto 68px; }
.panel { padding: clamp(30px, 6vw, 64px); border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 18px 44px rgba(8,46,80,.08); }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .12em; }
h1, h2, h3 { margin-top: 0; line-height: 1.4; letter-spacing: -.04em; }
h1 { margin-bottom: 26px; font-size: clamp(2.2rem, 6.4vw, 4.3rem); }
h1 em { color: var(--blue); font-family: var(--serif); font-weight: 400; font-style: normal; }
h2 { margin-bottom: 28px; font-size: clamp(1.55rem, 4vw, 2.35rem); }
h3 { margin-bottom: 12px; font-size: 1.12rem; }
p { margin: 0 0 17px; }
.lead { font-size: clamp(1.05rem, 2.6vw, 1.22rem); font-weight: 600; }
.notice { padding: 20px 22px; margin: 28px 0; border-left: 5px solid var(--lime); background: var(--soft); }
.notice strong { display: block; margin-bottom: 4px; color: var(--navy); }
.notice p { margin: 0; color: var(--muted); font-size: 15px; }
.meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 0; margin: 28px 0; list-style: none; }
.meta li { padding: 16px; text-align: center; border: 1px solid var(--line); border-radius: 10px; }
.meta strong, .meta span { display: block; }
.meta strong { color: var(--navy); font-size: 20px; }
.meta span { color: var(--muted); font-size: 13px; }
.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; padding: 12px 23px; border: 0; border-radius: 8px; font-weight: 800; text-decoration: none; cursor: pointer; }
.button--primary { color: var(--ink); background: var(--lime); }
.button--primary:hover, .button--primary:focus-visible { background: #cbfa81; }
.button--secondary { color: var(--navy); border: 1px solid var(--line); background: #fff; }
.button--secondary:hover, .button--secondary:focus-visible { border-color: var(--blue); }
.legal-note { margin: 27px 0 0; color: var(--muted); font-size: 12px; line-height: 1.75; }

.progress-copy { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; font-weight: 700; }
.progress { height: 8px; margin: 9px 0 35px; overflow: hidden; border-radius: 999px; background: #e8edf0; }
.progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--blue), var(--lime)); transition: width .2s ease; }
.question-number { margin-bottom: 8px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .1em; }
.answer-options { display: grid; gap: 12px; margin: 30px 0; }
.answer-option { width: 100%; padding: 17px 19px; color: var(--ink); text-align: left; border: 1px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer; }
.answer-option:hover, .answer-option:focus-visible { border-color: var(--blue); background: #f4f8fc; outline: 3px solid rgba(11,79,130,.1); }

.result-heading { display: flex; align-items: center; gap: 15px; margin-bottom: 22px; }
.result-code { display: inline-flex; width: 54px; height: 54px; flex: none; align-items: center; justify-content: center; color: #fff; border-radius: 50%; background: var(--navy); font-size: 20px; font-weight: 900; }
.result-label { margin: 0; color: var(--blue); font-size: 14px; font-weight: 800; }
.result-box, .next-step { padding: 24px 26px; margin: 30px 0; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); }
.result-box ul, .result-columns ul { padding-left: 1.25em; margin: 0; }
.result-box li, .result-columns li { margin-bottom: 6px; }
.result-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; margin-top: 30px; }
.result-columns>div { padding-top: 20px; border-top: 2px solid var(--blue); }
.warning { padding: 18px 20px; margin-top: 28px; color: var(--danger); border: 1px solid #e5b7af; border-radius: 10px; background: #fff4f1; font-weight: 700; }
.next-step { border-left: 5px solid var(--blue); }
.next-step p { color: var(--muted); }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.result-actions .button { min-width: 240px; }
#restart-button { margin-top: 4px; }

.site-footer { padding: 28px 0; color: var(--muted); border-top: 1px solid var(--line); background: #fff; font-size: 13px; }
.site-footer .shell { display: grid; grid-template-columns: auto auto minmax(0,1fr) auto; align-items:center; gap: 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 22px; }
.site-footer a:hover { color: var(--blue); }

@media (max-width: 680px) {
  body { font-size: 16px; }
  .shell { width: calc(100% - 36px); }
  .site-header__inner { min-height: 74px; }
  .brand { width: 150px; }
  .site-header__inner>div { max-width: 150px; }
  .product-hub { font-size: 12px; }
  .site-header span { font-size: 10px; }
  .screening-main { width: calc(100% - 24px); margin: 18px auto 45px; }
  .panel { padding: 28px 20px; border-radius: 12px; }
  h1 { font-size: clamp(2rem, 11vw, 3rem); }
  h2 { font-size: clamp(1.45rem, 7vw, 2rem); }
  .meta { grid-template-columns: 1fr; }
  .meta li { display: flex; align-items: center; justify-content: space-between; text-align: left; }
  #start-button, .answer-option, .result-actions .button { width: 100%; }
  .result-columns { grid-template-columns: 1fr; gap: 22px; }
  .result-actions { display: grid; }
  .site-footer .shell { display: block; }
  .site-footer nav { display: grid; justify-content: start; margin-top: 16px; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .progress span { transition: none; }
}