:root {
  --bg: #0f1410;
  --bg-elev: #171e18;
  --bg-card: #1c251e;
  --line: #2c3a2e;
  --text: #e8eee6;
  --muted: #a3b3a6;
  --sage: #8fbf7a;
  --sage-dim: #6d945c;
  --sand: #c9b896;
  --warn: #d4a017;
  --danger: #c45c4a;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}

a { color: var(--sage); text-decoration: none; }
a:hover { color: #b5e09e; text-decoration: underline; }

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 20, 16, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand:hover { text-decoration: none; color: var(--text); }

.mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(160deg, #8fbf7a, #3e6b3a);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  color: #0f1410;
}

nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); font-size: 0.95rem; text-decoration: none; }
nav a:hover, nav a.active { color: var(--sage); }

.hero {
  padding: 72px 0 40px;
  background:
    radial-gradient(900px 380px at 80% -10%, rgba(143, 191, 122, 0.16), transparent),
    linear-gradient(180deg, #141b15 0%, var(--bg) 100%);
}

.kicker {
  color: var(--sage);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 10px;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.15;
  max-width: 16ch;
  margin-bottom: 16px;
}

.lede { color: var(--muted); max-width: 58ch; font-size: 1.08rem; }

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn:hover { text-decoration: none; }

.btn-primary { background: var(--sage); color: #102010; }
.btn-primary:hover { background: #a6d18f; color: #102010; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--sage); color: var(--sage); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 10px 0 64px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.card p { color: var(--muted); font-size: 0.96rem; }

.notice {
  border: 1px solid #5a4a1d;
  background: #241c0c;
  color: #f0e2b8;
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 8px 0 36px;
}

.notice strong { color: var(--warn); }

.doc {
  padding: 48px 0 72px;
}

.doc h1 { max-width: none; font-size: clamp(1.8rem, 3vw, 2.4rem); }

.meta {
  color: var(--muted);
  margin: 8px 0 28px;
  font-size: 0.92rem;
}

.doc h2 {
  margin: 32px 0 10px;
  font-size: 1.25rem;
  color: var(--sand);
}

.doc h3 { margin: 18px 0 8px; font-size: 1.05rem; }

.doc p, .doc li { color: var(--muted); }
.doc p { margin-bottom: 12px; }
.doc ul, .doc ol { padding-left: 22px; margin-bottom: 16px; }
.doc li { margin-bottom: 6px; }

.callout {
  background: var(--bg-elev);
  border-left: 4px solid var(--danger);
  padding: 14px 16px;
  border-radius: 0 12px 12px 0;
  margin: 18px 0;
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.foot-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .hero { padding-top: 40px; }
  nav { display: none; }
}