/* 에이커 제곱미터 변환기 전용 CSS (2026-10-21). 토지 도면 보드: [등식 카드 | 도면] / 자주 찾는 값.
   폭(작업면 컨테이너 acr): 760 이상 [등식 | 도면], 그 아래 한 열이고 도면 칸이 480 이상이면 [그림 | 읽힘 값·범례] 가로.
   등식 칸(v2in): 560 미만이면 아래 세 칸, 420 미만이면 위 두 칸도 '라벨 | 입력' 한 줄씩(큰 값이 잘리지 않게).
   움직임(R45): 도면의 땅·기준 도형이 transform으로 자라고 줄어듦(0.5s), 첫 그림은 움직이지 않고 동작 줄이기면 바로. 공용 부품 assets/v2.css */
.acr-work{container:acr / inline-size}
.acr-work .v2-status:empty{display:none}
.acr-grid{display:grid;grid-template-columns:minmax(0,1fr);grid-template-areas:"eq" "plat" "qk"}
.acr-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:2px 10px;margin:0 0 8px}
.acr-headhint{font-family:var(--sans);font-size:12px;color:var(--muted);overflow-wrap:anywhere}

/* 등식 카드: 다섯 칸 중 친 칸이 정본(진한 테두리), acre = m² 큰 쌍 + 세 칸 */
.acr-eq{grid-area:eq;min-width:0;padding:14px 18px;border-bottom:1px solid var(--soft)}
.acr-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 14px;margin:0 0 12px}
.acr-modes,.acr-dec{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px}
.acr-modes .v2-seg[hidden]{display:none}
.acr-form{display:grid;gap:12px}
.acr-sides,.acr-pair{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:end;gap:0 8px}
.acr-sides[hidden]{display:none}
.acr-sides{padding:0 0 12px;border-bottom:1px dashed var(--line)}
.acr-sign{display:grid;place-items:center;min-width:20px;height:var(--v2-ctl,42px);font-family:var(--sans);font-size:22px;font-weight:700;line-height:1;color:var(--muted)}
.acr-pair .v2-input input{font-size:18px;font-weight:750}
.acr-ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 10px}
.acr-cell.is-src .v2-input{border-color:var(--ink)}
.acr-cell .v2-input b{min-width:0;padding:0 9px;white-space:nowrap}
.acr-sent{margin:12px 0 0;font-family:var(--sans);font-size:14px;font-weight:650;font-variant-numeric:tabular-nums lining-nums;overflow-wrap:anywhere;transition:opacity var(--ease)}
.acr-sent.is-error{color:var(--accent)}
.acr-eq.is-pend .acr-sent,.acr-eq.is-pend .acr-foot .v2-formula{opacity:.45}
.acr-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 14px;margin-top:10px}
.acr-foot .v2-formula{margin:0;min-width:0;white-space:normal;overflow-wrap:anywhere}
.acr-acts{display:flex;flex-wrap:wrap;align-items:center;gap:8px}

/* 도면: 종이(sheet) 위에 왼쪽 아래 모서리를 맞춰 겹친 넣은 땅(accent)·1 acre(점선)·익숙한 넓이(가는 선) */
.acr-plat{grid-area:plat;display:flex;flex-direction:column;min-width:0;margin:0;padding:14px 18px 12px;border-bottom:1px solid var(--soft);container:acrp / inline-size}
.acr-platbox{display:flex;flex-direction:column;justify-content:center;gap:10px;flex:1 1 auto}
.acr-platbox svg{display:block;width:100%;height:auto}
.acr-sheet{fill:var(--paper);stroke:var(--soft);stroke-width:1}
.acr-shape *{vector-effect:non-scaling-stroke}
.acr-land rect{fill:color-mix(in srgb, var(--accent) 16%, transparent);stroke:var(--accent);stroke-width:1.6}
.acr-acre rect{fill:none;stroke:var(--ink);stroke-width:1.2;stroke-dasharray:4 3}
.acr-obj *{fill:none;stroke:var(--muted);stroke-width:1}
.acr-shape.is-tiny,.acr-land.is-off{opacity:0}
.acr-plat.is-ready .acr-shape{transition:transform .5s cubic-bezier(.2,.75,.25,1),opacity .3s ease}
.acr-scale path{fill:none;stroke:var(--ink);stroke-width:1.2}
.acr-scale text{font-family:var(--sans);font-size:11px;font-weight:650;fill:var(--muted);font-variant-numeric:tabular-nums}
.acr-side{display:flex;flex-direction:column;gap:8px;min-width:0}
.acr-rd{margin:0}
.acr-rd li{flex-wrap:wrap;gap:2px 12px;padding:6px 0;font-size:13px}
.acr-rd li b{min-width:0;margin-left:auto;text-align:right;white-space:normal;overflow-wrap:anywhere;font-variant-numeric:tabular-nums lining-nums}
.acr-leg{display:flex;flex-wrap:wrap;gap:4px 14px;margin:0;padding:0;list-style:none;font-family:var(--sans);font-size:11.5px;font-weight:600;color:var(--muted)}
.acr-leg li{display:flex;align-items:center;gap:6px;min-width:0}
.acr-leg i{flex:0 0 auto;width:14px;height:10px;border:1.6px solid var(--accent);background:color-mix(in srgb, var(--accent) 16%, transparent)}
.acr-leg li[data-k="acre"] i{border:1.2px dashed var(--ink);background:none}
.acr-leg li[data-k="obj"] i{border:1px solid var(--muted);background:none}
.acr-leg li.is-tiny{opacity:.7}

/* 자주 찾는 값: 묶음마다 6개, 누르면 위 칸에 */
.acr-quick{grid-area:qk;min-width:0;padding:14px 18px 16px;container:acrq / inline-size}
.acr-qgs{display:grid;grid-template-columns:minmax(0,1fr);gap:12px 14px}
.acr-qg{min-width:0}
.acr-qt{margin:0 0 6px;font-family:var(--sans);font-size:11.5px;font-weight:700;color:var(--muted)}
.acr-qg ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin:0;padding:0;list-style:none}
@container acrq (min-width:660px){ .acr-qgs{grid-template-columns:repeat(3,minmax(0,1fr))} .acr-qg ul{grid-template-columns:repeat(2,minmax(0,1fr))} }
@container acrq (max-width:329px){ .acr-qg ul{grid-template-columns:repeat(2,minmax(0,1fr))} } /* 330 이상은 3열(2열이면 390px 화면에서 18개가 685px) */
.acr-qg button{display:flex;flex-direction:column;align-items:flex-start;gap:1px;width:100%;min-height:44px;padding:6px 9px;border:1px solid var(--soft);border-radius:var(--radius);background:var(--paper);color:var(--ink);font-family:var(--sans);text-align:left;cursor:pointer;font-variant-numeric:tabular-nums lining-nums;transition:background var(--ease),border-color var(--ease)}
.acr-qg button span{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 6px}
.acr-qg button b{font-size:13.5px;font-weight:750}
.acr-qg button small{font-size:11px;font-weight:600;color:var(--muted)}
.acr-qg button em{font-size:11.5px;font-style:normal;color:var(--muted);overflow-wrap:anywhere}
.acr-qg button:hover{background:var(--wash)}
.acr-qg button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.acr-qg button[aria-pressed="true"]{border-color:var(--fill);box-shadow:inset 0 0 0 1px var(--fill)}

@media (prefers-reduced-motion: reduce){ .acr-plat.is-ready .acr-shape{transition:none} }

/* 폭 */
@container acr (min-width:760px){
  .acr-grid{grid-template-columns:minmax(0,1fr) minmax(300px,40%);grid-template-areas:"eq plat" "qk qk"}
  .acr-plat{border-left:1px solid var(--soft)}
}
@container acrp (min-width:480px){
  .acr-platbox{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:center;gap:8px 20px}
}
@container v2in (max-width:559px){ /* 아래 세 칸은 '라벨 | 입력' 한 줄씩(세 칸 나란히면 2,589,988.1103 m²가 잘림) */
  .acr-ladder{grid-template-columns:minmax(0,1fr);gap:8px}
  .acr-ladder .acr-cell{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);align-items:center;gap:0 10px}
  .acr-ladder .acr-cell > label{margin:0}
}
@container v2in (max-width:419px){ /* 위 두 칸도 한 줄씩, =·≈·×는 바로 아래 문장이 알린다 */
  .acr-pair,.acr-sides{grid-template-columns:minmax(0,1fr);gap:8px}
  .acr-pair .acr-cell,.acr-sides .acr-cell{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);align-items:center;gap:0 10px}
  .acr-pair .acr-cell > label,.acr-sides .acr-cell > label{margin:0}
  .acr-sign{display:none}
}
@container acr (max-width:439px){
  .acr-eq,.acr-plat,.acr-quick{padding-left:14px;padding-right:14px}
  .acr-acts .v2-btn .i{display:none} /* 버튼 네 개가 한 줄에 들어가게 */
}