:root {
  --accent: #9A58CE;
  --accent-ink: #7B3CB0;
  --on-accent: #FFFFFF;
  --lav: #CC99FF;
  --tint: #F4E9FC;
  --bg: #FFFFFF;
  --surface: #FFFFFF;
  --fg: #2E2140;
  --muted: #6B5B7A;
  --faint: #A294B0;
  --line: #EBE0F3;
  --band: #000000;
  --on-band: #FFFFFF;
  --warn-bg: #FEF3C7;
  --warn-fg: #92400E;
  --warn-line: #FDE68A;

  --font: "Hiragino Sans", "ヒラギノ角ゴシック", "Yu Gothic", "Noto Sans JP", -apple-system, sans-serif;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 20px;
  --shadow-press: 2px 2px 0 var(--fg);
  --shadow-soft: 0 10px 24px rgba(123, 60, 176, .14);
  --max-doc: 760px;
  --max-page: 1280px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent-ink: #C9A6F0;
    --lav: #4A3566;
    --tint: #2B2140;
    --bg: #15121A;
    --surface: #1E1A25;
    --fg: #ECE7F3;
    --muted: #B0A6BF;
    --faint: #7D7290;
    --line: #362E42;
    --band: #000000;
    --warn-bg: #78350F;
    --warn-fg: #FDE68A;
    --warn-line: #92400E;
    --shadow-press: 2px 2px 0 #000000;
    --shadow-soft: 0 10px 24px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--lav); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max-doc); margin: 0 auto; padding: 0 20px; }

.doc header { border-bottom: 1px solid var(--line); padding: 18px 0; }
.doc header .wrap { display: flex; align-items: center; gap: 10px; }
.doc .logo { font-weight: 700; font-size: 17px; }
.doc .logo a { color: inherit; text-decoration: none; }
.doc .logo .sub { color: var(--muted); font-weight: 400; font-size: 13px; margin-left: 6px; }
.doc h1 { font-size: 23px; line-height: 1.5; margin: 34px 0 6px; }
.doc h2 { font-size: 16px; margin: 32px 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.doc h3 { font-size: 14px; margin: 20px 0 4px; }
.doc ul, .doc ol { padding-left: 1.3em; }
.doc li { margin: 5px 0; }
.doc table { border-collapse: collapse; width: 100%; margin: 10px 0; font-size: 14px; }
.doc th, .doc td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--muted); font-weight: 500; width: 32%; white-space: nowrap; }
.doc code { background: var(--tint); padding: 1px 5px; border-radius: 4px; font-size: .92em; word-break: break-all; }
.doc .lead { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
.doc .rev { color: var(--muted); font-size: 13px; }
.doc .box { border: 1px solid var(--line); border-radius: var(--radius-s); padding: 14px 16px; margin: 14px 0; background: var(--surface); }
.doc .scroll { overflow-x: auto; }
.doc footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 20px 0 40px; color: var(--muted); font-size: 13px; }
.doc footer a { margin-right: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 44px; padding: 0 24px;
  border: 1.6px solid var(--fg); border-radius: var(--radius-s); box-shadow: var(--shadow-press);
  font: inherit; font-weight: 700; line-height: 1.2; text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--fg); }
.btn:active { transform: translate(2px, 2px); box-shadow: none; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-secondary { background: var(--surface); color: var(--fg); }
.btn .ext { width: 1.05em; height: 1.05em; flex: none; }

.tag {
  display: inline-block; padding: 0 12px; border-radius: 999px;
  background: var(--accent); color: var(--on-accent);
  font-size: 12px; font-weight: 800; line-height: 28px; white-space: nowrap;
}
.pill {
  display: inline-flex; align-items: center; gap: 12px; padding: 4px 14px; border-radius: 999px;
  border: 1px solid var(--accent); background: var(--tint); color: var(--accent);
  font-size: 13px; font-weight: 600; white-space: nowrap;
}

.band { background: var(--band); color: var(--on-band); }
.band-title { font-size: 34px; font-weight: 700; letter-spacing: .05em; line-height: 70px; font-feature-settings: "palt"; }

.card { border: 1px solid var(--accent); border-radius: var(--radius-m); background: var(--surface); }
.card-strong { border-width: 2px; box-shadow: var(--shadow-soft); }

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}