:root,
:root[data-theme="light"] {
  --primary: #2e6b3e;
  --primary-strong: #1b4426;
  --secondary: #4c9a8a;
  --accent: #f2a541;
  --background: #f7f9f8;
  --surface: #ffffff;
  --text: #1c1b1f;
  --muted: #5f665f;
  --line: #d9e1db;
  --soft: #edf4ef;
  --font-body: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  --font-display: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  --pico-font-size: 100%;
  --pico-font-family: var(--font-body);
  --pico-background-color: var(--background);
  --pico-color: var(--text);
  --pico-muted-color: var(--muted);
  --pico-muted-border-color: var(--line);
  --pico-primary: var(--primary);
  --pico-primary-background: var(--primary);
  --pico-primary-border: var(--primary);
  --pico-primary-hover: var(--primary-strong);
  --pico-primary-hover-background: var(--primary-strong);
  --pico-primary-hover-border: var(--primary-strong);
  --pico-primary-focus: rgba(46, 107, 62, 0.25);
  --pico-primary-inverse: #ffffff;
  --pico-card-background-color: var(--surface);
  --pico-card-border-color: var(--line);
  --pico-card-box-shadow: none;
  --pico-border-radius: 0.5rem;
  color-scheme: light;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  line-height: 1.7;
}

a {
  color: var(--primary);
  text-underline-offset: 0.18em;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  z-index: 10;
}

.skip-link:focus {
  top: 12px;
}

.site-header,
main,
.site-footer {
  width: min(calc(100% - 40px), 1080px);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 14px;
  font-size: 0.95rem;
}

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

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

main {
  padding-bottom: 56px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.75fr);
  align-items: center;
  gap: 40px;
  padding: 56px 0 44px;
}

.hero-copy,
.hero-visual,
.page-hero,
.section,
.split > * {
  min-width: 0;
}

.hero-copy h1,
.page-hero h1 {
  margin: 0;
  color: var(--primary-strong);
  font-family: var(--font-display);
  font-size: 3.8rem;
  line-height: 1.12;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.lead {
  margin: 20px 0 0;
  max-width: 640px;
  color: var(--muted);
  font-size: 1.08rem;
  overflow-wrap: anywhere;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--secondary);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.hero-visual {
  display: grid;
  place-items: center;
  min-height: 300px;
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero-visual img {
  width: min(360px, 100%);
}

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

[role=button] {
  margin: 0;
  border-radius: 8px;
  font-weight: 700;
}

.mobile-break {
  display: none;
}

[role=button].secondary {
  color: var(--primary);
  background: var(--surface);
  border-color: var(--line);
}

.section {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.section.compact {
  padding-top: 34px;
}

.section h2 {
  margin: 0 0 18px;
  color: var(--primary-strong);
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1.25;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-grid h3 {
  margin: 8px 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
}

.feature-grid p,
.split p,
.prose p,
.prose li {
  color: var(--muted);
}

.feature-mark {
  color: var(--accent);
  font-weight: 800;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.8fr);
  gap: 28px;
  align-items: start;
}

.link-list {
  display: grid;
  gap: 10px;
}

.link-list a {
  display: grid;
  gap: 2px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
}

.link-list span {
  font-weight: 700;
}

.link-list small {
  color: var(--muted);
}

.page-hero {
  padding: 46px 0 34px;
}

.prose {
  max-width: 760px;
}

.prose h2 {
  margin-top: 26px;
}

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

.prose h3 {
  margin: 20px 0 8px;
  color: var(--primary-strong);
  font-family: var(--font-display);
}

.prose ul,
.prose ol {
  padding-left: 1.3rem;
}

.muted-band {
  max-width: none;
  padding: 28px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 4px 0 0;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}

@media (max-width: 760px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav,
  .site-footer nav {
    justify-content: flex-start;
  }

  .hero,
  .split,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 26px;
    padding-top: 36px;
  }

  .hero-copy h1,
  .page-hero h1 {
    font-size: 2rem;
  }

  .section h2 {
    font-size: 1.45rem;
  }

  .hero-visual {
    min-height: 220px;
  }

  .section {
    padding: 34px 0;
  }

  .actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .mobile-break {
    display: block;
  }

  .muted-band {
    padding: 22px;
  }
}