:root {
  --ink: #1a1a1a;
  --sub: #555;
  --line: #e5e5e5;
  --line-soft: #eee;
  --bg: #ffffff;
  --bg-soft: #faf8f4;
  --bg-panel: #f7f7f5;
  --accent: #00336A;
  --accent-ink: #ffffff;
  --gold: #8a6d1f;
  --gold-soft: #b58f2e;
  --shadow: 0 2px 20px rgba(0, 20, 60, 0.06);
  --radius: 6px;
  --maxw: 860px;
  --maxw-wide: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Yu Gothic Medium", "Yu Gothic", Meiryo, "Noto Sans JP", sans-serif;
  line-height: 1.85;
  font-size: 16px;
  font-feature-settings: "palt";
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--gold-soft); }

/* ---------- Layout ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: var(--maxw-wide); margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; }
.section-tight { padding: 32px 0; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(140%) blur(6px);
  background: rgba(255,255,255,.92);
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--maxw-wide); margin: 0 auto;
  gap: 16px;
}
.brand {
  display: flex; align-items: baseline; gap: 10px;
  color: var(--ink); text-decoration: none;
  font-weight: 700;
}
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent); color: #fff;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-weight: 600; font-size: 1.15rem; line-height: 1;
  transform: translateY(2px);
}
.brand-name { font-size: 1.05rem; letter-spacing: .04em; }
.brand-sub {
  color: var(--sub); font-weight: 400; font-size: .8rem;
  letter-spacing: .12em;
}
.header-cta {
  display: inline-block;
  background: var(--accent); color: #fff !important;
  padding: 8px 16px; border-radius: 999px;
  font-size: .88rem; text-decoration: none; font-weight: 600;
  transition: background .15s;
  white-space: nowrap;
}
.header-cta:hover { background: #002855; color: #fff !important; }

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 56px;
  background:
    radial-gradient(1200px 300px at 50% -80px, rgba(0,51,106,.08), transparent 70%),
    linear-gradient(180deg, #fbfaf5 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line-soft);
  text-align: center;
}
.hero-eyebrow {
  color: var(--gold); font-weight: 700;
  letter-spacing: .18em; font-size: .82rem;
  text-transform: uppercase;
}
.hero h1 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  line-height: 1.35;
  margin: .5em 0 .4em;
  letter-spacing: .04em;
}
.hero h1 .accent { color: var(--accent); }
.hero p.lead {
  color: var(--sub);
  max-width: 640px; margin: 0 auto;
  font-size: 1rem;
}

/* ---------- Page header (used on inner pages) ---------- */
.page-hero {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, #fbfaf5 0%, #ffffff 100%);
}
.page-hero .eyebrow {
  color: var(--gold); font-weight: 700;
  letter-spacing: .16em; font-size: .8rem;
  text-transform: uppercase;
}
.page-hero h1 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  line-height: 1.4;
  margin: .3em 0 .2em;
  letter-spacing: .03em;
}

/* ---------- Typography (body copy) ---------- */
.prose h2 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: 1.25rem;
  margin: 2.2em 0 .6em;
  padding-bottom: .35em;
  border-bottom: 2px solid var(--accent);
  letter-spacing: .03em;
}
.prose h3 {
  font-size: 1.02rem;
  margin: 1.6em 0 .4em;
  color: var(--accent);
}
.prose p { margin: .7em 0; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose ul li, .prose ol li { margin: .35em 0; }
.prose strong { color: var(--ink); }
.prose a { color: var(--accent); }

.prose table {
  width: 100%; border-collapse: collapse;
  margin: 1em 0;
  font-size: .95rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.prose th, .prose td {
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left; vertical-align: top;
}
.prose tr:last-child th, .prose tr:last-child td { border-bottom: none; }
.prose th { background: #f5f7fa; white-space: nowrap; font-weight: 600; }

.note, .prose .note { color: var(--sub); font-size: .88rem; }

.disclaimer {
  margin-top: 2em; padding: 16px 18px;
  background: var(--bg-panel);
  border-left: 4px solid var(--accent);
  font-size: .92rem; color: var(--sub);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.updated { margin-top: 2.4em; color: var(--sub); font-size: .88rem; }

/* ---------- Landing components ---------- */
.pill {
  display: inline-block; padding: 4px 12px;
  background: rgba(0,51,106,.08); color: var(--accent);
  border-radius: 999px; font-size: .78rem; font-weight: 600;
  letter-spacing: .06em;
}
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  background: var(--accent); color: #fff !important;
  text-decoration: none; font-weight: 600;
  transition: transform .15s, background .15s, box-shadow .15s;
  box-shadow: 0 4px 14px rgba(0,51,106,.25);
}
.btn:hover { background: #002855; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,51,106,.3); }
.btn-ghost {
  background: transparent; color: var(--accent) !important;
  border: 1.5px solid var(--accent);
  box-shadow: none;
}
.btn-ghost:hover { background: var(--accent); color: #fff !important; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 24px; }

.feature-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 32px;
}
.feature {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .15s, box-shadow .15s;
}
.feature:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.feature h3 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.05rem; margin: 0 0 .5em;
  color: var(--accent);
}
.feature p { margin: 0; color: var(--sub); font-size: .94rem; }
.feature .icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(138,109,31,.12); color: var(--gold);
  font-family: "Yu Mincho", serif; font-size: 1.2rem; font-weight: 600;
  margin-bottom: 12px;
}

.course-card-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 28px;
}
.course-card {
  padding: 28px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.course-card .tier { color: var(--gold); font-weight: 700; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; }
.course-card h3 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.2rem; margin: 4px 0 8px;
}
.course-card .price { font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.course-card .price-note { color: var(--sub); font-size: .82rem; margin-top: 2px; }
.course-card .desc { color: var(--sub); font-size: .92rem; margin-top: 12px; }

.split {
  background: var(--bg-soft);
  border-block: 1px solid var(--line-soft);
}
.steps {
  counter-reset: step;
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-top: 24px;
  padding: 0;
  list-style: none;
}
.steps li {
  counter-increment: step;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.steps li::before {
  content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  background: var(--accent); color: #fff;
  border-radius: 50%; font-weight: 700; font-size: .9rem;
  margin-bottom: 10px;
  font-family: -apple-system, sans-serif;
}
.steps li strong { display: block; margin-bottom: 4px; }
.steps li p { margin: 0; color: var(--sub); font-size: .92rem; }

/* ---------- Company info ---------- */
.company-block {
  margin-top: 2.4em;
}
.company-block h2 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.25rem;
  margin: 2em 0 .6em;
  padding-bottom: .35em;
  border-bottom: 2px solid var(--accent);
}

/* ---------- Legal footer links ---------- */
.legal-links {
  margin-top: 2em;
  padding-top: 1.4em;
  border-top: 1px solid var(--line-soft);
  font-size: .92rem;
  display: flex; gap: 24px; flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 80px;
  background: #0b1d33;
  color: #cfd6e1;
  padding: 48px 0 24px;
  font-size: .9rem;
}
.site-footer a { color: #e6ecf5; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  max-width: var(--maxw-wide); margin: 0 auto; padding: 0 20px;
}
.footer-brand .brand { color: #fff; }
.footer-brand .brand-mark { background: #fff; color: var(--accent); }
.footer-brand p { color: #8ea1bd; margin: 8px 0 0; font-size: .85rem; line-height: 1.7; }
.footer-col h4 {
  color: #fff; margin: 0 0 12px;
  font-size: .85rem; letter-spacing: .1em; text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin: 6px 0; }
.footer-bottom {
  max-width: var(--maxw-wide); margin: 32px auto 0; padding: 20px 20px 0;
  border-top: 1px solid #1c3252;
  color: #8ea1bd; font-size: .82rem;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .section { padding: 40px 0; }
  .hero { padding: 48px 0 40px; }
  .brand-sub { display: none; }
  .header-cta { padding: 7px 14px; font-size: .82rem; }
  .site-header-inner { padding: 12px 16px; }
  .container { padding: 0 18px; }
  .prose h2 { font-size: 1.15rem; margin-top: 1.8em; }
  .prose table { font-size: .9rem; }
  .prose th, .prose td { padding: 10px 10px; }
  .prose th { white-space: normal; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero { padding: 40px 0 32px; }
  .cta-row .btn, .cta-row .btn-ghost { width: 100%; text-align: center; }
}