:root {
  --bg: #edf3f1;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --text: #18342f;
  --muted: #4b6963;
  --line: rgba(24, 52, 47, 0.14);
  --accent: #1f7a68;
  --accent-deep: #145246;
  --shadow: 0 22px 44px rgba(16, 47, 41, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 122, 104, 0.18), transparent 32%),
    radial-gradient(circle at bottom right, rgba(24, 52, 47, 0.12), transparent 28%),
    linear-gradient(180deg, #f5f8f7 0%, var(--bg) 100%);
  line-height: 1.7;
}

a {
  color: inherit;
}

.page-shell {
  width: min(100% - 2rem, 980px);
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero,
.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 40px 24px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 122, 104, 0.26), rgba(31, 122, 104, 0));
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

h1,
h2,
.callout-title {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  line-height: 1.1;
}

.lead {
  max-width: 40rem;
  margin: 20px 0 0;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-actions {
  margin-top: 28px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.primary-link {
  padding: 0.9rem 1.25rem;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.primary-link:hover,
.primary-link:focus-visible,
.secondary-link:hover,
.secondary-link:focus-visible {
  transform: translateY(-1px);
}

.primary-link:focus-visible,
.secondary-link:focus-visible {
  outline: 3px solid rgba(31, 122, 104, 0.28);
  outline-offset: 3px;
}

main {
  display: grid;
  gap: 20px;
  margin-top: 20px;
}

.panel {
  padding: 28px 24px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

.panel p {
  margin: 0;
}

.two-column {
  display: grid;
  gap: 20px;
}

.callout {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  background: var(--surface-strong);
}

.callout-label {
  margin: 0 0 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.callout-title {
  margin: 0;
  font-size: 1.5rem;
}

.callout-copy {
  margin-top: 10px;
  color: var(--muted);
}

.secondary-link {
  margin-top: 14px;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(31, 122, 104, 0.25);
  color: var(--accent-deep);
  background: rgba(31, 122, 104, 0.06);
  word-break: break-all;
}

.org-details {
  display: grid;
  gap: 16px;
  margin: 0;
}

.org-details div {
  display: grid;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.org-details div:first-child {
  padding-top: 0;
  border-top: 0;
}

dt {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--muted);
}

dd {
  margin: 0;
}

.site-footer {
  padding: 18px 4px 0;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}

@media (min-width: 760px) {
  .page-shell {
    width: min(100% - 3rem, 980px);
    padding-top: 56px;
  }

  .hero {
    padding: 56px 48px;
  }

  .panel {
    padding: 34px 32px;
  }

  .two-column {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
    align-items: start;
  }
}