:root {
  --green: #103d2a;
  --green-soft: #e7f1eb;
  --ink: #18211c;
  --muted: #68736c;
  --paper: #fffdf8;
  --line: #d9cfbd;
  --brass: #b69a61;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f7f3eb;
  font-family: "M PLUS 1p", system-ui, sans-serif;
  line-height: 1.75;
}

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

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: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 3.5rem);
  border-bottom: 1px solid rgba(217, 207, 189, 0.85);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 900;
  color: var(--green);
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: #334238;
  font-size: 0.92rem;
  font-weight: 800;
}

.site-nav a {
  padding: 0.5rem 0.7rem;
  border-radius: 4px;
}

.site-nav a:hover,
.nav-portal {
  background: var(--green);
  color: #fffdf8;
}

.hero,
.section,
.facts {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: 72vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6rem) 0 2rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--brass);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 1rem;
  color: var(--green);
  font-size: clamp(2.2rem, 7vw, 4.8rem);
  line-height: 1.12;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.8rem;
  color: var(--green);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.45rem;
  color: #21372b;
}

.lead {
  max-width: 40rem;
  color: #4d5c53;
  font-size: 1.05rem;
}

.hero-actions,
.join-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.72rem 1.05rem;
  border: 1px solid var(--green);
  border-radius: 4px;
  font-weight: 900;
}

.button-primary {
  background: var(--green);
  color: #fffdf8;
}

.button-secondary {
  background: #fffdf8;
  color: var(--green);
}

.hero-visual {
  min-height: 24rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(255, 253, 248, 0.92), rgba(231, 241, 235, 0.9));
}

.hero-visual img {
  width: min(78%, 24rem);
  filter: drop-shadow(0 16px 24px rgba(16, 61, 42, 0.14));
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-bottom: 4.5rem;
}

.facts article,
.activity-card,
.join-section,
.cat-showcase {
  border: 1px solid var(--line);
  background: var(--paper);
}

.facts article {
  padding: 1rem;
}

.facts span,
.facts b {
  display: block;
}

.facts span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.facts b {
  color: var(--green);
  font-size: 1rem;
}

.section {
  padding: 4.5rem 0;
}

.section-head {
  max-width: 42rem;
  margin-bottom: 1.5rem;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.activity-card {
  min-height: 15rem;
  padding: 1.25rem;
}

.number {
  color: var(--brass);
  font-weight: 900;
}

.muted {
  width: 100%;
  max-width: none;
  padding-inline: max(1rem, calc((100% - 1120px) / 2));
  background: #eee8dc;
}

.cat-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.75fr);
  overflow: hidden;
}

.cat-photo {
  min-height: 21rem;
  display: grid;
  place-items: center;
  background: #fffdf8;
}

.cat-photo img {
  width: min(70%, 22rem);
  max-height: 24rem;
  object-fit: contain;
}

.cat-caption {
  padding: clamp(1.25rem, 4vw, 2.25rem);
  background: var(--green);
  color: #fffdf8;
}

.cat-caption h3 {
  color: #fffdf8;
  font-size: 1.7rem;
}

.cat-caption p {
  color: rgba(255, 253, 248, 0.84);
}

.join-section {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.join-section > div:first-child {
  max-width: 42rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line);
  color: #56625b;
  font-weight: 800;
}

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

  .site-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .site-nav a {
    text-align: center;
  }

  .hero,
  .cat-showcase,
  .join-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 2.5rem;
  }

  .hero-visual {
    min-height: 18rem;
  }

  .facts,
  .activity-grid {
    grid-template-columns: 1fr;
  }

  .facts {
    margin-bottom: 2rem;
  }

  .section {
    padding: 3rem 0;
  }

  .join-section {
    display: grid;
  }

  .join-actions .button {
    width: 100%;
  }

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