:root {
  color-scheme: light;
  --paper: #f3efe5;
  --paper-dark: #e7e1d4;
  --ink: #272d29;
  --muted: #5d675f;
  --line: #c7c5b8;
  --line-dark: #747c72;
  --rust: #873d30;
  --blue: #31545d;
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "MS Mincho", serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans JP", "Hiragino Sans", Meiryo, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--rust); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--rust); outline-offset: 4px; }
.skip-link {
  position: absolute;
  top: 0;
  left: 1rem;
  z-index: 1000;
  transform: translateY(-150%);
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: .5rem .85rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
}
.skip-link:focus-visible { transform: translateY(1rem); }
button, input { font: inherit; }
.wrap { width: min(980px, calc(100% - 40px)); margin: 0 auto; padding: 22px 0 38px; }
.page-header { display: flex; flex-direction: row-reverse; justify-content: space-between; align-items: center; gap: 28px; padding: 10px 4px 28px; border-bottom: 1px solid var(--line-dark); }
.page-header > div { flex: 1; }
.back-link { display: inline-flex; min-height: 44px; align-items: center; padding: 7px 10px; border: 1px solid var(--line-dark); color: var(--blue); font-size: .87rem; }
h1, h2, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 500; }
h1 { margin-bottom: 5px; font-size: clamp(2.3rem, 6vw, 4.2rem); letter-spacing: -.035em; line-height: 1.25; }
.lead { margin: 0; color: var(--muted); }
.game-list { margin-top: 28px; border-top: 1px solid var(--line-dark); }
.game-entry { display: grid; grid-template-columns: minmax(230px, .9fr) 1.1fr; align-items: center; gap: 24px; padding: 17px 5px; border-bottom: 1px solid var(--line); }
.game-title { position: relative; display: grid; gap: 0; min-width: 0; padding-right: 24px; }
.game-title h2 { margin: 0; color: var(--blue); font-size: 1.8rem; }
.game-type { color: var(--rust); font-size: .82rem; }
.entry-arrow { position: absolute; right: 0; bottom: 4px; color: var(--rust); }
.game-entry p { margin: 0; color: var(--muted); font-size: .94rem; }
.small-games { margin-top: 34px; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.small-games summary { width: fit-content; padding: 12px 3px; color: var(--blue); cursor: pointer; font-family: var(--serif); font-size: 1.2rem; }
.mini-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; padding: 0 3px 22px; }
.mini-game { padding-top: 14px; border-top: 1px solid var(--line); }
.mini-game h2 { margin-bottom: 6px; font-size: 1.25rem; }
.mini-game p, .mini-game label { color: var(--muted); font-size: .9rem; }
.mini-game label { display: block; margin: 9px 0 4px; }
button, input { min-height: 44px; border: 1px solid var(--line-dark); border-radius: 0; padding: 7px 10px; background: #faf7ef; color: var(--ink); }
button { color: var(--blue); cursor: pointer; }
button:hover { border-color: var(--rust); color: var(--rust); }
.guess-row { display: flex; flex-wrap: wrap; gap: 8px; }
.guess-row input { width: min(160px, 100%); }
.result-text { min-height: 1.7em; margin: 9px 0 0; color: var(--rust) !important; }
.page-footer { padding-top: 18px; font-size: .86rem; }
.page-footer a { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 660px) {
  .wrap { width: calc(100% - 28px); padding-top: 14px; }
  .page-header { align-items: flex-start; flex-direction: column; gap: 12px; padding: 4px 2px 22px; }
  .back-link { order: 0; }
  .game-entry { grid-template-columns: 1fr; gap: 5px; padding: 14px 3px; }
  .game-title h2 { font-size: 1.55rem; }
  .mini-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }