:root {
  --bg: #f7f4f5;
  --paper: #ffffff;
  --ink: #1c1416;
  --muted: #5c5156;
  --line: #eadfe2;
  --accent: #9f1239;
  --accent-soft: #fff1f4;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.7 "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

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

a:hover { text-decoration: none; }

.nav {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav .in,
footer .in {
  max-width: 820px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav nav {
  margin-left: auto;
  display: flex;
  gap: 16px;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

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

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

main {
  max-width: 820px;
  margin: 28px auto 64px;
  padding: 48px 40px 64px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
}

h1 {
  margin: 0 0 8px;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(32px, 5vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.updated {
  margin: 0 0 28px;
  color: var(--muted);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  font-weight: 600;
}

h2 {
  margin: 36px 0 10px;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h3 {
  margin: 22px 0 6px;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
}

p { margin: 0 0 14px; }

ul {
  margin: 0 0 16px;
  padding-left: 1.25rem;
}

li { margin: 4px 0; }

li::marker { color: var(--accent); }

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 13px;
}

footer a { color: var(--muted); }

@media (max-width: 720px) {
  .nav .in,
  footer .in { padding: 14px 16px; }

  main {
    margin: 0;
    padding: 32px 18px 48px;
    border: 0;
    border-radius: 0;
  }
}