:root {
  --meadow: #e3ecd3;
  --grass: #c9dbb0;
  --grass-in: #a9c98a;
  --ink: #1f3320;
  --ink-soft: #4d6348;
  --wood: #8a5a2b;
  --wood-hi: #b98446;
  --hay: #e7bf4f;
  --wool: #fbfaf4;
  --post: #6b4420;
  --focus: #1f5fbf;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --meadow: #15241a;
    --grass: #1f3526;
    --grass-in: #33563a;
    --ink: #e6eed8;
    --ink-soft: #a9bb9d;
    --wood: #c08a50;
    --wood-hi: #dca865;
    --hay: #e9c35a;
    --wool: #f1efe6;
    --post: #9a6a38;
    --focus: #9cc2ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--meadow); color: var(--ink);
  font: 400 1rem/1.75 var(--sans); overflow-x: hidden;
}
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.top { max-width: 68rem; margin: 0 auto; padding: 1.25rem 1rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: inherit; text-decoration: none; font-family: var(--serif); font-size: 1.25rem; font-weight: 700; line-height: 1.2; }
.brand small { display: block; font-family: var(--sans); font-weight: 400; font-size: .8125rem; color: var(--ink-soft); letter-spacing: .03em; }

main { max-width: 68rem; margin: 0 auto; padding: 0 1rem; }

.intro { padding: 1.5rem 0 1.5rem; max-width: 40rem; }
h1 {
  font-family: var(--serif); font-weight: 700; margin: 0 0 1rem;
  font-size: clamp(1.9rem, 5.6vw, 3.4rem); line-height: 1.25; letter-spacing: .01em;
}
.intro p { margin: 0; color: var(--ink-soft); font-size: 1.0625rem; }

.field-wrap {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 2.5rem;
  align-items: center; padding: 1.5rem 0 3.5rem;
}
.board { max-width: 34rem; width: 100%; }
#field { width: 100%; height: auto; display: block; touch-action: manipulation; }
#field .cell { fill: var(--grass); transition: fill .25s; }
#field .cell.in { fill: var(--grass-in); }
#field .guide { stroke: var(--ink-soft); stroke-width: 1; stroke-dasharray: 2 5; opacity: .45; }
#field .hit { stroke: transparent; stroke-width: 16; stroke-linecap: round; cursor: pointer; }
#field .hit:hover + .fence:not(.on) { stroke: var(--wood-hi); opacity: .5; }
#field .fence { stroke: transparent; stroke-width: 7; stroke-linecap: round; pointer-events: none; }
#field .fence.on { stroke: var(--wood); }
#field .rail { stroke: var(--wood-hi); stroke-width: 1.6; pointer-events: none; }
#field .post { fill: var(--post); }
#field .sheep { pointer-events: none; transform-box: fill-box; transform-origin: center; animation: hop .45s cubic-bezier(.3,1.6,.5,1) both; }
#field .sheep .body { fill: var(--wool); stroke: #33312a; stroke-width: 1.2; }
#field .sheep .head { fill: #33312a; }
@keyframes hop { from { transform: translateY(-8px) scale(.4); opacity: 0; } }

.ledger { display: grid; gap: 1.25rem; }
.count { display: flex; align-items: baseline; gap: .75rem; border-bottom: 2px solid var(--wood); padding-bottom: .6rem; }
.big { font-family: var(--serif); font-size: clamp(2.8rem, 7vw, 4.2rem); line-height: 1; font-weight: 700; font-variant-numeric: tabular-nums; min-width: 2ch; }
.unit { color: var(--ink-soft); }
.verdict { margin: 0; min-height: 3.5em; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.actions button {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 6px; padding: .55rem 1.2rem;
  background: var(--hay); color: #2a2208; border: 2px solid var(--hay);
}
.actions button.quiet { background: transparent; color: var(--ink); border-color: var(--wood); }
.actions button:hover { filter: brightness(1.05); }

.almanac { padding: 1rem 0 4rem; border-top: 2px dashed var(--wood); }
.almanac h2 { font-family: var(--serif); font-size: clamp(1.5rem, 4vw, 2.2rem); margin: 2rem 0 1rem; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.cols p { margin: 0; max-width: 34em; }
.shapes { margin: 2rem 0 0; max-width: 30rem; }
.shapes svg { width: 100%; height: auto; display: block; }
.shapes .s { fill: var(--grass); stroke: var(--wood); stroke-width: 3; }
.shapes .s.win { fill: var(--grass-in); }
.shapes figcaption { display: grid; grid-template-columns: 1.1fr .95fr .75fr; font-size: .875rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; margin-top: .4rem; }

.foot { border-top: 1px solid color-mix(in srgb, var(--ink) 18%, transparent); }
.foot p { max-width: 68rem; margin: 0 auto; padding: 1.5rem 1rem 2rem; font-size: .875rem; color: var(--ink-soft); }

@media (max-width: 760px) {
  .field-wrap { grid-template-columns: 1fr; gap: 1.5rem; }
  .cols { grid-template-columns: 1fr; gap: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}