:root {
  --bg: #f6f1e8;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #e7e0d6;
  --accent: #9a3412;
  --accent-ink: #fffaf5;
  --paper: #fffdf8;
  --font: "Iowan Old Style", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
}
img, svg { max-width: 100%; }
a { color: inherit; }
.skip {
  position: absolute;
  left: 0.8rem;
  top: -3rem;
  background: var(--paper);
  padding: 0.4rem 0.7rem;
}
.skip:focus { top: 0.8rem; }
.wrap { width: min(1080px, calc(100% - 2rem)); margin-inline: auto; }
.site-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.mark { width: 2rem; height: 2rem; flex: none; }
nav { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; }
nav a { text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 0.25em; }
.hero { padding: 4.2rem 0 2.4rem; }
.eyebrow {
  margin: 0;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--accent);
}
h1, h2, h3 { font-family: var(--font); font-weight: 500; }
h1 {
  font-size: clamp(2.15rem, 5vw, 4.1rem);
  line-height: 1.18;
  margin: 0.35rem 0 1rem;
  letter-spacing: 0.01em;
}
h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); margin: 0 0 0.8rem; }
h3 { font-size: 1.25rem; margin: 0 0 0.4rem; }
.lede { font-size: 1.12rem; max-width: 40rem; margin-top: 0; }
.notice {
  max-width: 44rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  padding: 0.95rem 1.05rem;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.3rem; }
.button, button {
  font: inherit;
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  border: 0;
  padding: 0.75rem 1.15rem;
  cursor: pointer;
}
.button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0.9rem; }
.card, .list-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.05rem 1.1rem;
}
.list-card { text-decoration: none; display: block; }
.list-card:hover { border-color: var(--accent); }
.list-card span { color: var(--muted); }
section { padding: 1.4rem 0 2rem; }
ol.steps, ul.plain { padding-left: 1.2rem; }
ol.steps li, ul.plain li { margin: 0.35rem 0; }
details {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.75rem 1rem;
  margin: 0.55rem 0;
}
summary { cursor: pointer; font-weight: 600; }
form { display: grid; gap: 0.8rem; max-width: 40rem; }
label { display: grid; gap: 0.28rem; font-size: 0.95rem; }
input, textarea {
  font: inherit;
  color: inherit;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.7rem 0.75rem;
}
textarea { min-height: 9rem; resize: vertical; }
.check { grid-template-columns: auto 1fr; align-items: start; gap: 0.6rem; }
.hp { position: absolute; left: -9999px; }
.status { min-height: 1.5rem; }
footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0 2.8rem;
  color: var(--muted);
  font-size: 0.92rem;
}
footer a { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .hero { padding-top: 2.6rem; }
}