:root {
  --ink: #26332d;
  --muted: #5f6f66;
  --line: #dce5dd;
  --paper: #fffdf7;
  --soft: #edf6ee;
  --leaf: #2f7653;
  --leaf-dark: #245f42;
  --sun: #f3c05d;
  --sky: #dfeff4;
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 18px;
  line-height: 1.8;
  letter-spacing: 0;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(255, 253, 247, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: grid;
  text-decoration: none;
  font-weight: 700;
  line-height: 1.3;
}

.brand small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 15px;
  color: var(--muted);
}

nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 540px);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 72px) 44px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--leaf);
  font-size: 15px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.28;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 21px;
  line-height: 1.45;
}

.hero-copy p:not(.eyebrow) {
  max-width: 680px;
  color: var(--muted);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 700;
  line-height: 1.3;
}

.button.primary {
  color: white;
  background: var(--leaf);
  border-color: var(--leaf);
}

.button.secondary {
  background: white;
}

.button.quiet {
  color: var(--leaf-dark);
  background: var(--soft);
}

.button.compact {
  min-height: 42px;
  padding: 8px 16px;
  font-size: 16px;
  white-space: nowrap;
}

.hero-photo {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--soft);
  box-shadow: 0 24px 80px rgba(55, 73, 57, 0.16);
}

.hero-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-photo figcaption {
  padding: 14px 18px;
  color: var(--leaf-dark);
  font-size: 15px;
  font-weight: 700;
}

.section {
  padding: 64px clamp(20px, 5vw, 72px);
}

.split {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.text-block {
  color: var(--muted);
}

.band {
  background: var(--soft);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin-bottom: 0;
}

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

.card-link {
  color: inherit;
  text-decoration: none;
}

.news-list article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  transition: border-color 160ms ease, transform 160ms ease;
}

.card-link:hover article {
  border-color: var(--leaf);
  transform: translateY(-2px);
}

.news-list time {
  display: block;
  margin-bottom: 12px;
  color: var(--leaf);
  font-size: 14px;
  font-weight: 700;
}

.news-list p {
  color: var(--muted);
  font-size: 16px;
}

.event-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: white;
}

.event-link {
  display: grid;
  gap: 8px;
  min-height: 128px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: background 160ms ease;
}

.event-link:hover {
  background: var(--soft);
}

.event-grid strong {
  color: var(--leaf-dark);
  font-size: 22px;
}

.event-grid span {
  color: var(--muted);
  font-size: 16px;
}

.section-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
}

.detail-list {
  display: grid;
  gap: 18px;
  max-width: 920px;
}

.detail-item {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.detail-item time,
.detail-item .date {
  display: block;
  margin-bottom: 10px;
  color: var(--leaf);
  font-size: 15px;
  font-weight: 700;
}

.photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding-top: 0;
}

.photos img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
}

.members {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 clamp(20px, 5vw, 72px) 64px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--sky);
}

.members p {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  color: var(--muted);
  background: #f4f0e6;
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .split,
  .news-list,
  .event-grid,
  .photos {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 36px;
  }

  .members,
  .site-footer,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 17px;
  }

  nav {
    width: 100%;
  }

  nav a {
    width: calc(50% - 11px);
  }

  .button {
    width: 100%;
  }

  .news-list article {
    min-height: auto;
  }
}