:root {
  color-scheme: light;
  --bg-top: #f5efe4;
  --bg-bottom: #d8efe9;
  --paper: rgba(255, 252, 246, 0.82);
  --paper-strong: rgba(255, 250, 241, 0.94);
  --border: rgba(20, 58, 59, 0.12);
  --border-strong: rgba(20, 58, 59, 0.2);
  --text: #173135;
  --muted: #4f6669;
  --accent: #0d7b7a;
  --accent-strong: #0d5f63;
  --accent-soft: rgba(13, 123, 122, 0.12);
  --glow: rgba(213, 154, 67, 0.28);
  --shadow: 0 30px 70px rgba(15, 40, 42, 0.12);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --page-width: 1120px;
  --heading-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --body-font: "Avenir Next", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.72), transparent 34%),
    radial-gradient(circle at top right, rgba(213, 154, 67, 0.18), transparent 22%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

body {
  margin: 0;
  color: var(--text);
  font-family: var(--body-font);
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.8), transparent 22%),
    radial-gradient(circle at 88% 8%, rgba(230, 193, 137, 0.32), transparent 20%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent 40%);
  pointer-events: none;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--page-width));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.site-header,
.site-footer,
.hero-card,
.info-card,
.section-card,
.legal-card {
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 253, 249, 0.72);
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 2;
  margin-bottom: 28px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark__pulse {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #e1a74a, #0d7b7a);
  box-shadow: 0 0 0 9px rgba(13, 123, 122, 0.09);
}

.site-nav,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.site-nav a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

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

.hero-card,
.section-card,
.legal-card {
  background: var(--paper);
  border: 1px solid var(--border);
}

.hero-card {
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(213, 154, 67, 0.16), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 251, 244, 0.82));
}

.hero-card--compact {
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: #102528;
  font-family: var(--heading-font);
  line-height: 1.1;
}

h1 {
  max-width: 15ch;
  font-size: clamp(2.7rem, 6vw, 5rem);
}

h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.lead {
  max-width: 68ch;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  text-decoration: none;
  font-weight: 700;
}

.button--primary {
  color: #f8fcfc;
  background: linear-gradient(135deg, var(--accent), #114f53);
  border-color: transparent;
}

.button--ghost {
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.56);
}

.info-grid,
.detail-grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.info-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.info-card,
.legal-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--paper-strong);
  border: 1px solid var(--border);
}

.info-card p,
.legal-card p,
.section-card p,
.legal-list,
.check-list {
  margin: 0;
  color: var(--muted);
}

.section-card {
  margin-top: 22px;
  padding: clamp(24px, 4vw, 36px);
  border-radius: var(--radius-xl);
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.check-list,
.legal-list {
  display: grid;
  gap: 12px;
  padding-left: 1.2rem;
}

.legal-layout {
  display: grid;
  gap: 18px;
}

.site-footer {
  margin-top: 28px;
}

.site-footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

@media (max-width: 860px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--page-width));
    padding-top: 18px;
  }

  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .info-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-card,
  .info-card,
  .section-card,
  .legal-card {
    animation: rise 560ms ease both;
  }

  .info-card:nth-child(2),
  .detail-grid > div:nth-child(2),
  .legal-card:nth-child(3) {
    animation-delay: 80ms;
  }

  .info-card:nth-child(3),
  .detail-grid > div:nth-child(4),
  .legal-card:nth-child(4) {
    animation-delay: 140ms;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(14px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}