:root {
  --navy: #1B2A41;
  --navy-dark: #141F31;
  --copper: #B08D57;
  --ink: #2A3340;
  --gray: #5F6B7A;
  --bg: #F7F8FA;
  --line: #E3E7EC;
  --white: #FFFFFF;
}

* { 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: 1.8;
  font-size: 16px;
}

a { color: var(--navy); text-decoration: none; }

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

.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1040px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: inline-block; text-align: left; line-height: 1.3; }
.logo .logo-en {
  font-size: 20px; letter-spacing: 0.38em; color: var(--navy);
  font-weight: 500; display: block;
}
.logo .logo-ja {
  font-size: 10px; letter-spacing: 0.42em; color: var(--copper); display: block;
}

.nav-toggle { display: none; }
.nav-toggle-label {
  display: none; cursor: pointer; padding: 10px;
}
.nav-toggle-label span {
  display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0;
  transition: 0.3s;
}
.global-nav ul { display: flex; gap: 28px; list-style: none; }
.global-nav a {
  font-size: 14px; color: var(--ink); letter-spacing: 0.05em;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.global-nav a:hover, .global-nav a.current { border-bottom-color: var(--copper); }

@media (max-width: 820px) {
  .nav-toggle-label { display: block; }
  .global-nav {
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  }
  .nav-toggle:checked ~ .global-nav { max-height: 420px; }
  .global-nav ul { flex-direction: column; gap: 0; padding: 8px 20px 16px; }
  .global-nav a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); }
}

/* Hero */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 96px 20px 104px;
  text-align: center;
}
.hero .hero-sub-en {
  font-size: 12px; letter-spacing: 0.5em; color: var(--copper);
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(26px, 5vw, 42px);
  font-weight: 500; letter-spacing: 0.08em; line-height: 1.6;
  margin-bottom: 24px;
}
.hero p {
  font-size: clamp(14px, 2.5vw, 16px);
  color: #C7D0DC; max-width: 640px; margin: 0 auto 40px;
}
.btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 36px; font-size: 15px;
  letter-spacing: 0.1em; border-radius: 2px; transition: 0.25s;
}
.btn-primary { background: var(--copper); color: var(--white); }
.btn-primary:hover { background: #9A7A48; }
.btn-outline { border: 1px solid #5A6B82; color: var(--white); }
.btn-outline:hover { border-color: var(--copper); color: var(--copper); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-dark); }

/* Page hero (sub pages) */
.page-hero {
  background: var(--navy); color: var(--white);
  padding: 56px 20px; text-align: center;
}
.page-hero .en {
  font-size: 11px; letter-spacing: 0.5em; color: var(--copper); margin-bottom: 12px;
}
.page-hero h1 { font-size: clamp(22px, 4vw, 30px); font-weight: 500; letter-spacing: 0.15em; }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--bg); }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title .en {
  font-size: 11px; letter-spacing: 0.5em; color: var(--copper);
  display: block; margin-bottom: 10px;
}
.section-title h2 {
  font-size: clamp(20px, 3.5vw, 28px); font-weight: 500;
  letter-spacing: 0.12em; color: var(--navy);
}
.lead { text-align: center; max-width: 680px; margin: -24px auto 48px; color: var(--gray); }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 820px) { .card-grid { grid-template-columns: 1fr; } }
.card {
  background: var(--white); border: 1px solid var(--line);
  padding: 36px 28px; text-align: center;
}
.card .num {
  font-size: 12px; letter-spacing: 0.3em; color: var(--copper); margin-bottom: 14px;
}
.card h3 {
  font-size: 18px; font-weight: 500; color: var(--navy);
  letter-spacing: 0.08em; margin-bottom: 14px;
}
.card p { font-size: 14px; color: var(--gray); text-align: left; }

/* Steps */
.steps { max-width: 720px; margin: 0 auto; }
.step {
  display: flex; gap: 24px; padding: 28px 0;
  border-bottom: 1px solid var(--line); align-items: flex-start;
}
.step:last-child { border-bottom: none; }
.step .step-num {
  flex: 0 0 56px; height: 56px; border: 1px solid var(--copper);
  color: var(--copper); display: flex; align-items: center; justify-content: center;
  font-size: 20px; letter-spacing: 0.05em;
}
.step h3 { font-size: 17px; font-weight: 500; color: var(--navy); margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--gray); }

/* Tables */
.info-table { width: 100%; border-collapse: collapse; max-width: 760px; margin: 0 auto; }
.info-table th, .info-table td {
  padding: 18px 16px; border-bottom: 1px solid var(--line);
  font-size: 15px; text-align: left; vertical-align: top;
}
.info-table th {
  width: 30%; color: var(--navy); font-weight: 500; white-space: nowrap;
  letter-spacing: 0.05em;
}
.info-table td { color: var(--ink); }
@media (max-width: 600px) {
  .info-table th, .info-table td { display: block; width: 100%; }
  .info-table th { padding-bottom: 4px; border-bottom: none; }
  .info-table td { padding-top: 0; }
}

/* Message */
.message-box { max-width: 720px; margin: 0 auto; }
.message-box p { margin-bottom: 1.4em; }
.message-sign { text-align: right; margin-top: 32px; }
.message-sign .role { font-size: 13px; color: var(--gray); }
.message-sign .name { font-size: 18px; color: var(--navy); letter-spacing: 0.2em; }

/* Contact */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  max-width: 760px; margin: 0 auto;
}
@media (max-width: 680px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--white); border: 1px solid var(--line);
  padding: 40px 28px; text-align: center;
}
.contact-card .label { font-size: 13px; color: var(--gray); letter-spacing: 0.2em; margin-bottom: 12px; }
.contact-card .value { font-size: 22px; color: var(--navy); font-weight: 500; letter-spacing: 0.05em; }
.contact-card .note { font-size: 12px; color: var(--gray); margin-top: 10px; }

/* Legal pages */
.legal { max-width: 760px; margin: 0 auto; }
.legal h2 {
  font-size: 18px; font-weight: 500; color: var(--navy);
  margin: 40px 0 12px; padding-left: 12px; border-left: 3px solid var(--copper);
}
.legal p, .legal li { font-size: 15px; color: var(--ink); }
.legal ul, .legal ol { padding-left: 24px; margin: 8px 0; }
.legal .updated { text-align: right; color: var(--gray); font-size: 13px; margin-top: 40px; }

/* CTA band */
.cta-band {
  background: var(--navy); color: var(--white);
  text-align: center; padding: 64px 20px;
}
.cta-band h2 { font-size: clamp(18px, 3vw, 24px); font-weight: 500; letter-spacing: 0.12em; margin-bottom: 12px; }
.cta-band p { color: #C7D0DC; font-size: 14px; margin-bottom: 28px; }

/* Utility */
.sp-only { display: none; }
@media (max-width: 600px) { .sp-only { display: inline; } }

/* Footer */
.site-footer {
  background: var(--navy-dark); color: #9AA7B8;
  padding: 48px 20px 32px; font-size: 13px;
}
.footer-inner { max-width: 1040px; margin: 0 auto; }
.footer-logo .logo-en { font-size: 18px; letter-spacing: 0.38em; color: var(--white); display: block; }
.footer-logo .logo-ja { font-size: 10px; letter-spacing: 0.42em; color: var(--copper); display: block; margin-top: 2px; }
.footer-nav { margin: 24px 0; }
.footer-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer-nav a { color: #9AA7B8; font-size: 13px; }
.footer-nav a:hover { color: var(--white); }
.copyright { border-top: 1px solid #2A3B55; padding-top: 20px; margin-top: 8px; font-size: 12px; }