:root {
  color-scheme: light;
  --ink: #1c1915;
  --muted: #4a433c;
  --line: #ddd4c8;
  --paper: #f7f3ec;
  --card: #fffdf9;
  --accent: #0f4c46;
  --accent-soft: #e5f1ef;
  --warn: #6b3d12;
  --warn-bg: #f8efe4;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "PingFang SC", "Noto Serif SC", serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

a, code {
  overflow-wrap: anywhere;
}

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

a:hover { text-decoration-thickness: 2px; }

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--ink);
  color: white;
  padding: 0.4rem 0.7rem;
}

.skip:focus { top: 0.75rem; }

.banner {
  background: var(--accent);
  color: #f4fbfa;
}

.banner a { color: #f4fbfa; }

.wrap {
  width: min(44rem, calc(100% - 2rem));
  margin-inline: auto;
}

.banner .wrap,
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

nav a { text-decoration: none; }

nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 0.25rem; }

main { padding-block: 2rem 3rem; }

h1, h2, h3 {
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 6vw, 3.1rem); margin: 0 0 0.4rem; }

h2 { font-size: 1.45rem; margin: 2rem 0 0.6rem; }

h3 { font-size: 1.12rem; margin: 1.4rem 0 0.4rem; }

.lede { font-size: 1.2rem; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  margin: 1rem 0;
}

.notice {
  background: var(--warn-bg);
  border-color: #ead7c4;
  color: var(--warn);
}

ul, ol { padding-left: 1.2rem; }

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

.lang {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.meta { color: var(--muted); font-size: 0.95rem; }

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 0.95rem;
}

code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.92em;
  overflow-wrap: anywhere;
}

@media (max-width: 40rem) {
  .banner .wrap,
  .site-footer .wrap { align-items: flex-start; }
  body { font-size: 1.05rem; }
}