:root {
  --bg: #f6f3ee;
  --ink: #1c1917;
  --muted: #57534e;
  --card: #fffdf9;
  --line: #e7e0d6;
  --accent: #0f766e;
  --accent-ink: #134e4a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 500px at 10% -10%, #d9f3ef 0%, transparent 55%),
    radial-gradient(900px 420px at 100% 0%, #fde7d4 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  line-height: 1.55;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  max-width: 760px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0.5rem;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--accent-ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

nav {
  display: flex;
  gap: 0.9rem;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 0.92rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover {
  color: var(--accent);
}

.doc {
  max-width: 760px;
  margin: 1rem auto 3rem;
  padding: 1.75rem 1.4rem 2rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(28, 25, 23, 0.06);
}

h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  line-height: 1.2;
}

h2 {
  margin: 1.6rem 0 0.55rem;
  font-size: 1.15rem;
  color: var(--accent-ink);
}

.meta {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 0.88rem;
}

p,
li {
  font-size: 1.02rem;
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

a {
  color: var(--accent);
}

.foot {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 0.92rem;
  color: var(--muted);
}

@media (max-width: 560px) {
  .top {
    flex-direction: column;
    align-items: flex-start;
  }

  .doc {
    margin: 0.75rem 0.75rem 2.5rem;
    padding: 1.35rem 1.1rem 1.6rem;
    border-radius: 14px;
  }
}