:root {
  --navy: #1f5f8b;
  --navy-deep: #174766;
  --accent: #39b8c8;
  --accent-deep: #2a8f9e;
  --accent-soft: #ddf5f8;
  --sky: #8fd3de;
  --ink: #243746;
  --muted: #647887;
  --line: #d9e7ee;
  --bg-soft: #f3f9fc;
  --white: #ffffff;
  --star: #f5c13b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(31, 95, 139, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.9;
  font-size: 16px;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--navy);
}

.brand-logo {
  display: block;
  height: 40px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.nav a:hover { color: var(--navy); }

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 9px 18px;
  border-radius: 999px;
  transition: background 0.2s;
}

.nav-cta:hover { background: var(--navy-deep); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 90% -10%, var(--accent-soft), transparent 60%),
    linear-gradient(170deg, var(--white) 0%, var(--bg-soft) 55%, #e9f4f9 100%);
  color: var(--ink);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 100px 24px 110px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  background: var(--white);
  border: 1px solid var(--sky);
  border-radius: 999px;
  padding: 5px 16px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(38px, 6vw, 60px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.05em;
  color: var(--navy);
  margin-bottom: 24px;
}

.hero-lead {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--muted);
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions.center { justify-content: center; }

.hero-deco {
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  border: 2px solid rgba(57, 184, 200, 0.3);
}

.hero-deco::before {
  content: "";
  position: absolute;
  inset: 60px;
  border-radius: 50%;
  border: 2px solid rgba(143, 211, 222, 0.35);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--navy), var(--accent-deep));
  color: var(--white);
  box-shadow: 0 6px 18px rgba(31, 95, 139, 0.3);
}

.btn-ghost {
  color: var(--navy);
  background: var(--white);
  border: 1.5px solid var(--navy);
}

.btn-ghost:hover { background: var(--bg-soft); }

.btn-ghost-dark {
  color: var(--navy);
  border: 1.5px solid var(--navy);
  background: var(--white);
}

.btn-outline {
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.btn-line {
  background: #06c755;
  color: var(--white);
  box-shadow: 0 6px 18px rgba(6, 199, 85, 0.3);
}

.btn-block {
  display: block;
  text-align: center;
  margin-top: auto;
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }

.section-alt { background: var(--bg-soft); }

.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 10px;
}

.section-eyebrow.light { color: var(--accent-deep); }

.section-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--navy);
  margin-bottom: 44px;
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
  border-top: 4px solid var(--accent);
}

.card:hover { transform: translateY(-4px); }

.card-num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--accent-deep));
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.card p {
  font-size: 14.5px;
  color: var(--muted);
}

/* ---------- Message ---------- */
.section-dark {
  background:
    radial-gradient(700px 350px at 10% 120%, var(--accent-soft), transparent 60%),
    linear-gradient(160deg, #eaf4f8, var(--bg-soft));
  color: var(--ink);
}

.message-inner {
  max-width: 760px;
  text-align: center;
}

.message-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(24px, 3.6vw, 32px);
  letter-spacing: 0.06em;
  color: var(--navy);
  margin-bottom: 24px;
}

.message-body {
  color: var(--ink);
  font-size: 15.5px;
}

/* ---------- Price ---------- */
.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.price-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  box-shadow: var(--shadow);
  position: relative;
}

.price-card.featured {
  border: 2px solid var(--accent);
  background: linear-gradient(180deg, var(--white) 70%, var(--accent-soft) 160%);
}

.price-tag {
  position: absolute;
  top: -14px;
  left: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 0.1em;
}

.price-card h3 {
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 12px;
}

.price-desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}

.price-list {
  list-style: none;
  margin-bottom: 28px;
}

.price-list li {
  font-size: 14px;
  padding: 8px 0 8px 26px;
  border-bottom: 1px dashed var(--line);
  position: relative;
}

.price-list li::before {
  content: "✓";
  position: absolute;
  left: 2px;
  color: var(--accent-deep);
  font-weight: 700;
}

.price-card.muted {
  background: var(--bg-soft);
  border-style: dashed;
  box-shadow: none;
}

.price-card.muted h3 { color: var(--muted); }

/* ---------- Profile ---------- */
.profile-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}

.profile-kana {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin: -30px 0 22px;
}

.profile-text p + p { margin-top: 16px; }

.profile-facts {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.profile-facts dl > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.profile-facts dl > div:last-child { border-bottom: none; }

.profile-facts dt {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-deep);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.profile-facts dd {
  font-size: 14px;
  color: var(--ink);
}

/* ---------- Office ---------- */
.office-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.office-table th,
.office-table td {
  text-align: left;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.office-table tr:last-child th,
.office-table tr:last-child td { border-bottom: none; }

.office-table th {
  width: 160px;
  background: var(--bg-soft);
  color: var(--navy);
  font-weight: 700;
  white-space: nowrap;
}

/* ---------- CTA ---------- */
.section-cta {
  background:
    radial-gradient(800px 400px at 50% -20%, rgba(57, 184, 200, 0.25), transparent 60%),
    linear-gradient(160deg, var(--navy), var(--navy-deep));
  color: var(--white);
  text-align: center;
}

.cta-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(24px, 3.6vw, 34px);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

.cta-lead {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 36px;
}

.section-cta .btn-ghost-dark {
  color: var(--white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  display: block;
  height: 46px;
  width: auto;
}

.footer-copy { font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .nav a:not(.nav-cta) { display: none; }
  .brand-logo { height: 32px; }
  .footer-logo { height: 38px; }
  .hero-inner { padding: 80px 24px 90px; }
  .section { padding: 72px 0; }
  .profile-inner { grid-template-columns: 1fr; gap: 32px; }
  .profile-kana { margin-top: -34px; }
  .office-table th { width: 110px; }
}