:root {
  --primary: #5E8B7E;
  --accent: #D98C5F;
  --bg: #F7F4EE;
  --card: #FFFFFF;
  --border: #E7E2D8;
  --text: #2B2F2D;
  --muted: #66706B;
  --danger: #9B3A2F;
  --max: 860px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
header {
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.9);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
  font-size: .95rem;
}
nav a:hover { color: var(--primary); }
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 24px 72px;
}
.hero { margin-bottom: 34px; }
.eyebrow {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .78rem;
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 8px 0 12px; }
h2 { font-size: 1.45rem; margin-top: 40px; margin-bottom: 12px; }
h3 { font-size: 1.08rem; margin-top: 26px; margin-bottom: 8px; }
p, li { font-size: 1rem; }
.muted { color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 26px;
  margin: 24px 0;
}
.notice {
  border-left: 4px solid var(--primary);
  background: #fff;
  border-radius: 12px;
  padding: 16px 18px;
  margin: 24px 0;
}
.danger { border-left-color: var(--danger); }
ul, ol { padding-left: 1.4rem; }
a { color: var(--primary); }
footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 24px 44px;
  font-size: .9rem;
}
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.home-card {
  display: block;
  text-decoration: none;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
}
.home-card:hover { border-color: var(--primary); transform: translateY(-1px); }
.home-card strong { display: block; margin-bottom: 6px; }
@media (max-width: 640px) {
  .nav { align-items: flex-start; flex-direction: column; }
  nav a { margin: 0 14px 0 0; display: inline-block; }
  main { padding-top: 38px; }
}