:root {
  --bg: #f5faf7;
  --surface: #ffffff;
  --surface-alt: #edf7f0;
  --text: #173329;
  --muted: #5d766d;
  --line: #d7e6de;
  --primary: #1f8f59;
  --primary-dark: #166a42;
  --accent: #f5c84c;
  --shadow: 0 18px 40px rgba(24, 48, 40, 0.08);
  --shadow-soft: 0 10px 24px rgba(24, 48, 40, 0.06);
  --radius: 24px;
  --container: 1120px;
  --narrow: 820px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(245, 200, 76, 0.12), transparent 24%),
    linear-gradient(180deg, #f8fcfa 0%, #f2fbf6 100%);
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(100%, var(--narrow));
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(248, 252, 250, 0.85);
  border-bottom: 1px solid rgba(215, 230, 222, 0.8);
}

.header-inner,
.hero-grid,
.trust-grid,
.cta-box,
.feature-layout,
.footer-layout,
.footer-meta-row {
  display: grid;
  gap: 32px;
}

.header-inner {
  grid-template-columns: auto auto 1fr;
  align-items: center;
  padding: 16px 0;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.menu-toggle {
  display: none;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.site-nav a {
  color: var(--muted);
  font-weight: 700;
}

.site-nav a[aria-current="page"] {
  color: var(--primary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover,
.btn:focus-visible,
.text-link:hover,
.text-link:focus-visible,
.resource-card:hover,
.resource-card:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 14px 30px rgba(31, 143, 89, 0.22);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-dark);
}

.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.btn-large {
  min-width: 220px;
}

.btn-nav {
  min-height: 44px;
  padding: 0 18px;
}

.hero {
  padding-top: 52px;
}

.hero-grid,
.trust-grid,
.cta-box,
.feature-layout,
.footer-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero-copy h1,
.page-hero h1,
.section-heading h2,
.cta-box h2,
.prose-card h2,
.card h2,
.info-panel h3 {
  margin: 0;
  line-height: 1.2;
}

.hero-copy h1,
.page-hero h1 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  margin-top: 12px;
}

.eyebrow,
.panel-label {
  display: inline-block;
  margin: 0 0 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(31, 143, 89, 0.12);
  color: var(--primary-dark);
  font-size: 0.92rem;
  font-weight: 700;
}

.lead,
.card p,
.step p,
.trust-list,
.faq p,
.cta-box p,
.site-footer p,
.section-heading p,
.prose-card p,
.prose-card li,
.info-panel p,
.resource-card span,
.info-list dd,
.legal-table dd {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-points,
.trust-list,
.check-list,
.card ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li,
.trust-list li,
.check-list li,
.card ul li {
  position: relative;
  padding-left: 28px;
  margin-top: 10px;
}

.hero-points li::before,
.trust-list li::before,
.check-list li::before,
.card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.hero-visual img {
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 40px;
  text-align: center;
}

.align-left {
  margin: 0 0 24px;
  text-align: left;
}

.card-grid,
.steps,
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.step,
.faq details,
.cta-box,
.info-panel,
.resource-card,
.prose-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.card,
.step,
.info-panel,
.resource-card,
.prose-card {
  padding: 28px;
}

.card h3,
.step h3,
.resource-card strong {
  margin-top: 0;
  margin-bottom: 12px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
  border-radius: 16px;
  background: rgba(245, 200, 76, 0.2);
  color: #8a6300;
  font-weight: 800;
}

.faq {
  display: grid;
  gap: 14px;
}

.faq details {
  padding: 20px 22px;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq p {
  margin-bottom: 0;
}

.feature-layout {
  align-items: start;
}

.info-panel {
  background: linear-gradient(180deg, #ffffff 0%, var(--surface-alt) 100%);
}

.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: var(--primary-dark);
  font-weight: 700;
  transition: transform 0.2s ease;
}

.resource-card {
  display: grid;
  gap: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.resource-card:hover,
.resource-card:focus-visible {
  box-shadow: var(--shadow);
}

.page-hero {
  padding-bottom: 40px;
}

.prose-card h2 {
  margin-top: 32px;
  margin-bottom: 16px;
}

.prose-card h2:first-child {
  margin-top: 0;
}

.prose-card ul {
  margin: 16px 0 0;
  padding-left: 20px;
}

.prose-card ul li,
.prose-card p {
  margin-top: 12px;
}

.note-box {
  margin-top: 32px;
  padding: 20px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.token {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(245, 200, 76, 0.28);
  color: #775400;
  font-weight: 800;
}

.info-list,
.legal-table {
  display: grid;
  gap: 16px;
}

.info-list div,
.legal-table div {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.info-list div:last-child,
.legal-table div:last-child {
  border-bottom: 0;
}

.info-list dt,
.legal-table dt {
  font-weight: 800;
}

.cta-box {
  padding: 36px;
  background: linear-gradient(135deg, #ffffff 0%, #eefaf3 100%);
}

.site-footer {
  padding: 32px 0 44px;
}

.footer-brand {
  display: inline-block;
  margin-bottom: 8px;
}

.footer-links {
  display: grid;
  justify-content: end;
  gap: 10px;
}

.footer-links a {
  color: var(--muted);
  font-weight: 700;
}

.footer-meta-row {
  grid-template-columns: 1fr;
  margin-top: 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(215, 230, 222, 0.8);
}

.footer-meta {
  margin: 0;
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: auto auto;
  }

  .menu-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .site-nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    padding-top: 8px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a,
  .btn-nav {
    width: 100%;
    justify-content: center;
  }

  .hero-grid,
  .trust-grid,
  .cta-box,
  .feature-layout,
  .footer-layout,
  .card-grid,
  .steps,
  .resource-grid,
  .card-grid-2 {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: start;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    padding-top: 28px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .section {
    padding: 60px 0;
  }

  .card,
  .step,
  .cta-box,
  .faq details,
  .info-panel,
  .resource-card,
  .prose-card {
    padding: 22px;
  }
}