:root {
  --ink: #142033;
  --muted: #5a6578;
  --line: #d7dee8;
  --bg: #eef2f7;
  --card: #ffffff;
  --accent: #1b892d;
  --accent-ink: #0f5c1c;
}

* { box-sizing: border-box; }

html {
  color: var(--ink);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  background: var(--bg);
}

body { margin: 0; }

.wrap {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
}

.top {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.eyebrow {
  margin: 0;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
}

.btn:hover { border-color: #b8c3d4; }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn.primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }

.sheet {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 14px 40px rgba(20, 32, 51, 0.08);
  padding: 28px 30px 34px;
  margin: 22px auto 18px;
}

.sheet h1 {
  margin: 0 0 6px;
  font-size: 1.85rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.sheet .lead {
  color: var(--muted);
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.sheet .lead strong {
  color: var(--accent-ink);
  display: block;
  font-size: 1.02rem;
  margin-bottom: 4px;
}

.sheet h2 {
  margin: 18px 0 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

.sheet h3 {
  margin: 12px 0 4px;
  font-size: 1.02rem;
}

.sheet p {
  margin: 0 0 8px;
}

.sheet p.title {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  margin-top: 0;
}

.sheet ul {
  margin: 0 0 8px;
  padding-left: 1.15rem;
}

.sheet li { margin-bottom: 4px; }

.sheet a {
  color: var(--accent-ink);
  text-decoration: none;
}

.sheet a:hover { text-decoration: underline; }

.entry { margin-bottom: 4px; }

.foot {
  padding: 8px 0 36px;
  color: var(--muted);
  font-size: 0.88rem;
}

.foot .muted { opacity: 0.9; }
.foot code {
  background: #e4eaf3;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

@media (max-width: 640px) {
  .sheet { padding: 20px 16px 26px; }
  .sheet h1 { font-size: 1.5rem; }
}