/* =========================================================
   恋愛サポートアドバイザー 資格紹介LP スタイル
   配色・タイポ・余白は website/design-system.md に準拠
   ========================================================= */
:root {
  --primary: #9B6172;
  --primary-dark: #623B48;
  --primary-light: #EBDDE2;
  --bg: #FAF7F4;
  --surface: #FFFFFF;
  --text: #2D292A;
  --muted: #6E6668;
  --support: #8A9A87;
  --warning: #B77832;
  --border: #E5DEDF;

  --maxw: 1160px;
  --readw: 740px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 6px 24px rgba(98, 59, 72, 0.08);
  --shadow-sm: 0 2px 10px rgba(98, 59, 72, 0.06);

  --font-base: "Noto Sans JP", "Inter", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  --header-h: 60px;
  --space-section: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.4; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--primary-dark); }
img, svg { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 20px; }
.section { padding-block: var(--space-section); position: relative; }
.section--tint { background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); }
.section--rose { background: var(--primary-light); }
.section__head { max-width: var(--readw); margin: 0 auto 36px; text-align: center; }
.section__eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: .08em; font-weight: 700;
  color: var(--primary); background: var(--primary-light); padding: 5px 12px; border-radius: 999px; margin-bottom: 14px;
}
.section h2 { font-size: 28px; margin: 0 0 12px; }
.section__lead { color: var(--muted); margin: 0; }

/* skip link */
.skip-link {
  position: absolute; left: 12px; top: -48px; background: var(--primary-dark); color: #fff;
  padding: 10px 16px; border-radius: 8px; z-index: 200; transition: top .15s;
}
.skip-link:focus { top: 12px; }

/* focus visibility */
a:focus-visible, button:focus-visible, summary:focus-visible, .chapter summary:focus-visible {
  outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 6px;
}

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 100; background: rgba(250, 247, 244, 0.92);
  backdrop-filter: saturate(1.1) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 8px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); text-decoration: none; font-size: 15px; min-width: 0; }
.brand span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand__mark { width: 30px; height: 30px; flex: 0 0 auto; }
.nav { display: none; }
.nav a { color: var(--text); text-decoration: none; font-size: 14px; padding: 8px 10px; border-radius: 8px; }
.nav a:hover { background: var(--primary-light); color: var(--primary-dark); }
.header .header__cta { display: none; }
.menu-toggle {
  display: inline-flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 12px; font-size: 14px; cursor: pointer; color: var(--text);
}
.menu-toggle__bars { width: 18px; height: 12px; position: relative; }
.menu-toggle__bars span { position: absolute; left: 0; right: 0; height: 2px; background: var(--primary-dark); }
.menu-toggle__bars span:nth-child(1){ top: 0; } .menu-toggle__bars span:nth-child(2){ top: 5px; } .menu-toggle__bars span:nth-child(3){ top: 10px; }

.mobile-nav { display: none; border-top: 1px solid var(--border); background: var(--surface); }
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding: 8px 20px 16px; }
.mobile-nav a { display: block; padding: 12px 8px; color: var(--text); text-decoration: none; border-bottom: 1px solid var(--border); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 12px; font-weight: 700; font-size: 16px;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent; transition: transform .12s, box-shadow .12s, background .12s;
}
.btn-primary { background: var(--primary-dark); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--surface); color: var(--primary-dark); border-color: var(--primary-dark); }
.btn-secondary:hover { background: var(--primary-light); }
.btn[disabled], .btn[aria-disabled="true"] {
  background: var(--border); color: var(--muted); border-color: var(--border);
  cursor: not-allowed; box-shadow: none; transform: none; pointer-events: none;
}
.btn--lg { min-height: 54px; font-size: 17px; padding: 14px 28px; }
.btn__note { display: block; font-size: 12px; color: var(--muted); margin-top: 8px; font-weight: 400; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background:
  radial-gradient(1200px 500px at 80% -10%, var(--primary-light), transparent 60%),
  radial-gradient(900px 400px at -10% 20%, #EFE7DF, transparent 55%), var(--bg); }
.hero__inner { display: grid; gap: 28px; padding-block: 48px 56px; }
.hero__badge { display: inline-flex; align-items: center; gap: 8px; align-self: start;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; font-size: 13px; color: var(--primary-dark); box-shadow: var(--shadow-sm); }
.hero h1 { font-size: 34px; margin: 0 0 8px; letter-spacing: .01em; }
.hero__sub { font-size: 16px; color: var(--muted); max-width: 38em; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 4px 0 8px; list-style: none; }
.hero__facts li { font-size: 13px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 6px 12px; color: var(--text); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__media { position: relative; }
.hero__media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.hero__notice { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.cols-3 { grid-template-columns: 1fr; }
.cols-2 { grid-template-columns: 1fr; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.card__icon { width: 40px; height: 40px; border-radius: 10px; background: var(--primary-light);
  display: grid; place-items: center; margin-bottom: 14px; color: var(--primary-dark); }
.card h3 { font-size: 20px; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }

/* checklist */
.checklist { display: grid; gap: 12px; max-width: var(--readw); margin-inline: auto; padding: 0; list-style: none; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; }
.checklist .tick { flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%; background: var(--support);
  color: #fff; display: grid; place-items: center; font-size: 14px; margin-top: 2px; }

/* about: can / cannot */
.split { display: grid; gap: 20px; grid-template-columns: 1fr; }
.panel { border-radius: var(--radius); padding: 22px; border: 1px solid var(--border); }
.panel--can { background: #F1F4F0; border-color: #D9E2D6; }
.panel--cannot { background: #FBF3EC; border-color: #E6D9C9; }
.panel h3 { font-size: 19px; margin: 0 0 12px; display: flex; align-items: center; gap: 8px; }
.panel ul { margin: 0; padding-left: 1.1em; }
.panel li { margin-bottom: 8px; color: var(--text); }
.panel--can h3 { color: #4f6b4a; }
.panel--cannot h3 { color: var(--warning); }

/* media row */
.media-row { display: grid; gap: 24px; grid-template-columns: 1fr; align-items: center; }
.media-row img { border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); width: 100%; }
.media-row__body h3 { font-size: 22px; margin: 0 0 10px; }
.media-row__body p { color: var(--muted); }

/* curriculum accordion */
.parts { display: grid; gap: 16px; }
.part { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.chapter, .faq-item { border: 0; }
details.acc { border-bottom: 1px solid var(--border); }
details.acc:last-child { border-bottom: 0; }
.acc > summary {
  list-style: none; cursor: pointer; padding: 16px 18px; display: flex; justify-content: space-between; gap: 12px;
  align-items: center; font-weight: 700; font-size: 15px;
}
.acc > summary::-webkit-details-marker { display: none; }
.acc > summary .chev { flex: 0 0 auto; transition: transform .2s; color: var(--primary); }
.acc[open] > summary .chev { transform: rotate(180deg); }
.acc__body { padding: 0 18px 18px; color: var(--muted); font-size: 14.5px; }
.part__head { background: var(--primary-light); padding: 14px 18px; }
.part__head h3 { margin: 0; font-size: 17px; color: var(--primary-dark); }
.part__head p { margin: 4px 0 0; font-size: 13.5px; color: var(--muted); }

/* values / principle */
.principle { text-align: center; max-width: var(--readw); margin-inline: auto; }
.principle__msg { font-size: 22px; font-weight: 700; color: var(--primary-dark); margin: 0 0 24px; line-height: 1.6; }
.principle ul { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0; text-align: left; }
.principle li { display: flex; gap: 10px; align-items: flex-start; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 16px; }
.principle li .tick { color: var(--support); flex: 0 0 auto; }

/* steps */
.steps { display: grid; gap: 16px; counter-reset: step; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; align-items: start; }
.step__num { width: 44px; height: 44px; border-radius: 50%; background: var(--primary-dark); color: #fff;
  display: grid; place-items: center; font-weight: 700; }
.step h3 { font-size: 17px; margin: 0 0 4px; }
.step p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* exam highlight */
.exam-stats { display: grid; gap: 14px; grid-template-columns: 1fr; max-width: var(--readw); margin: 0 auto 8px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat b { display: block; font-size: 24px; color: var(--primary-dark); }
.stat span { font-size: 13.5px; color: var(--muted); }

/* pricing */
.price-card { max-width: 560px; margin-inline: auto; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); text-align: center; }
.price-card .amount { font-size: 28px; font-weight: 700; color: var(--primary-dark); }
.price-card .amount.tbd { font-size: 20px; color: var(--muted); }
.price-card ul { text-align: left; max-width: 360px; margin: 18px auto; padding-left: 1.1em; color: var(--text); }
.price-card li { margin-bottom: 6px; }

/* profile */
.profile { display: grid; gap: 22px; grid-template-columns: 1fr; align-items: center; max-width: 860px; margin-inline: auto; }
.profile__img { width: 160px; height: 160px; border-radius: 24px; object-fit: cover; border: 1px solid var(--border);
  box-shadow: var(--shadow); margin-inline: auto; }
.profile__body h3 { font-size: 20px; margin: 0 0 6px; }
.profile__pending { color: var(--muted); font-size: 14.5px; background: var(--bg); border: 1px dashed var(--border);
  border-radius: var(--radius-sm); padding: 14px 16px; }

/* faq */
.faq { max-width: 820px; margin-inline: auto; display: grid; gap: 12px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.faq summary { padding: 16px 18px; font-weight: 700; font-size: 15px; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { color: var(--primary); transition: transform .2s; }
.faq details[open] summary .chev { transform: rotate(180deg); }
.faq .faq__a { padding: 0 18px 18px; color: var(--muted); font-size: 14.5px; }

/* notice band */
.notice {
  background: #F1F4F0; border: 1px solid #D9E2D6; border-radius: var(--radius);
  padding: 18px 20px; color: var(--text); font-size: 14px; max-width: var(--readw); margin-inline: auto;
}
.notice strong { color: var(--primary-dark); }

/* final cta */
.final-cta { background:
  radial-gradient(800px 360px at 50% 120%, var(--primary-light), transparent 60%), var(--primary-dark);
  color: #fff; text-align: center; }
.final-cta h2 { color: #fff; font-size: 26px; }
.final-cta p { color: rgba(255,255,255,.88); }
.final-cta .hero__facts li { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.2); color: #fff; }
.final-cta .btn-primary { background: #fff; color: var(--primary-dark); }
.final-cta__note { font-size: 12.5px; color: rgba(255,255,255,.8); margin-top: 12px; }

/* footer */
.footer { background: #2A2426; color: #DAD4D5; padding-block: 48px 96px; font-size: 14px; }
.footer__grid { display: grid; gap: 28px; grid-template-columns: 1fr; }
.footer h4 { color: #fff; font-size: 15px; margin: 0 0 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer a { color: #D8C7CD; text-decoration: none; }
.footer a:hover { text-decoration: underline; color: #fff; }
.footer__legalnote { margin-top: 28px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #A99FA2; font-size: 12.5px; }

/* sticky mobile cta */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; background: rgba(255,255,255,.96);
  border-top: 1px solid var(--border); padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  display: flex; gap: 10px; align-items: center; box-shadow: 0 -4px 16px rgba(98,59,72,.08);
}
.sticky-cta .btn { flex: 1; min-height: 46px; }
.sticky-cta__label { display: none; }
body.has-sticky { padding-bottom: 84px; }

/* pending pill */
.pending { display: inline-block; font-size: 12px; font-weight: 700; color: var(--warning);
  background: #FBF3EC; border: 1px solid #E6D9C9; border-radius: 999px; padding: 3px 10px; }

/* legal pages */
.legal { max-width: var(--readw); margin: 0 auto; padding-block: 40px 80px; }
.legal h1 { font-size: 28px; margin: 0 0 8px; }
.legal h2 { font-size: 19px; margin: 28px 0 8px; }
.legal p, .legal li { color: var(--text); }
.legal dl { display: grid; grid-template-columns: 1fr; gap: 4px 16px; }
.legal dt { font-weight: 700; margin-top: 12px; }
.legal dd { margin: 0 0 4px; color: var(--muted); }
.legal .back { display: inline-block; margin-bottom: 24px; }
.legal .tbd { color: var(--warning); font-weight: 700; }

/* 404 */
.nf { min-height: 60vh; display: grid; place-items: center; text-align: center; padding: 40px 20px; }
.nf h1 { font-size: 48px; color: var(--primary-dark); margin: 0; }

/* ---------- Responsive ---------- */
/* 〜400px: ヘッダーを1行に収める（CTAは非表示のまま） */
@media (max-width: 400px) {
  .header__cta { display: none; }
  .brand { font-size: 13.5px; gap: 8px; }
  .brand__mark { width: 26px; height: 26px; }
  .menu-toggle { padding: 8px 10px; font-size: 13px; }
  .container { padding-inline: 16px; }
}
@media (min-width: 700px) {
  .cols-2 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr 1fr; }
  .exam-stats { grid-template-columns: repeat(3, 1fr); }
  .exam-stats.two { grid-template-columns: repeat(2, 1fr); max-width: 560px; }
  .media-row { grid-template-columns: 1fr 1fr; }
  .media-row.reverse .media-row__media { order: 2; }
  .profile { grid-template-columns: 180px 1fr; }
  .profile__img { width: 180px; height: 180px; margin: 0; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .hero h1 { font-size: 44px; }
  .section h2 { font-size: 34px; }
}
@media (min-width: 980px) {
  :root { --header-h: 68px; --space-section: 104px; }
  .cols-3 { grid-template-columns: repeat(3, 1fr); }
  .nav { display: flex; align-items: center; gap: 2px; }
  .header .header__cta { display: inline-flex; }
  .menu-toggle { display: none; }
  .hero__inner { grid-template-columns: 1.05fr 0.95fr; align-items: center; padding-block: 72px 88px; }
  .sticky-cta { display: none; }
  body.has-sticky { padding-bottom: 0; }
}

/* 認定証セクション */
.cert { max-width: 760px; margin-inline: auto; text-align: center; }
.cert__figure { margin: 0 0 24px; }
.cert__figure img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); background: #fff; }
.cert__figure figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); }
.cert__list { display: inline-block; text-align: left; margin: 0 auto 20px; }

/* 料金表 */
.price-table { width: 100%; max-width: 420px; margin: 18px auto; border-collapse: collapse; }
.price-table th, .price-table td { padding: 9px 4px; border-bottom: 1px solid var(--border); font-size: 15px; }
.price-table th { font-weight: 500; color: var(--text); text-align: left; }
.price-table td { text-align: right; color: var(--primary-dark); font-weight: 600; white-space: nowrap; }
.price-table .price-table__total th, .price-table .price-table__total td {
  font-weight: 700; color: var(--primary-dark); border-bottom: 2px solid var(--primary); }