/* 気体の状態方程式のページ専用。共通の部品は style.css を使い、ここには、このページだけのものを書く */
.kj-sim { --c-curve: #1f5fd6; --c-one: #6d28d9; --c-ext: #566078; }
.kj-modes { grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0 0 12px; }
.kj-modes .btn { line-height: 1.3; }
.kj-layout {
  display: grid; gap: 12px 18px; align-items: start;
  grid-template-columns: minmax(0, 1fr) 320px;
  grid-template-areas: "stage controls" "status controls" "graphs controls" "cmp controls";
}
.kj-stage { grid-area: stage; min-width: 0; }
.kj-status-area { grid-area: status; min-width: 0; }
.kj-graphs { grid-area: graphs; min-width: 0; }
.kj-cmp-area { grid-area: cmp; min-width: 0; }
.kj-controls { grid-area: controls; min-width: 0; }
.kj-status { min-height: 3.4em; margin: 0; line-height: 1.6; font-size: 0.95rem; }

#gas { display: block; width: 100%; height: 192px; touch-action: pan-y; cursor: ew-resize; }
.kj-note { margin: 4px 0 0; font-size: 0.8rem; color: var(--muted); }

.kj-var { padding: 4px 0 6px; border-top: 1px solid var(--line); }
.kj-var:first-of-type { border-top: 0; }
.kj-var-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 8px; margin: 2px 0 0; }
.kj-var-head label { font-weight: 700; }
.kj-var-head output { min-width: 0; margin-left: auto; text-align: right; font-weight: 700; color: var(--blue-dark); }
.kj-tag { font-size: 0.72rem; font-weight: 700; border-radius: 4px; padding: 0 5px; background: var(--blue-soft); color: var(--blue-dark); }
.kj-tag-fixed { background: #fdf0e6; color: #9a3412; }
.kj-var.is-fixed output { color: #9a3412; }
.kj-var .theta-row .btn { min-width: 2.6em; padding: 4px 6px; }
.kj-tbtns { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.kj-tbtns .btn { font-size: 0.8rem; }
.kj-gas { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.kj-tools { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.kj-tools .btn { line-height: 1.3; font-size: 0.85rem; padding: 6px 4px; }
.kj-tools .kj-wide { grid-column: 1 / -1; }

.kj-graph-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.kj-graph-row .figure-wrap svg { display: block; width: 100%; height: 240px; }
.kj-gbtns { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 8px 0 0; }
.kj-gbtns .btn { line-height: 1.25; }
.kj-axis-btns { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 6px 0 0; }
#axis-group[hidden] { display: none; }

/* グラフの中 */
.kj-gtitle { font-size: 12.5px; font-weight: 700; fill: var(--text); }
.kj-grid { stroke: #e8edf5; stroke-width: 1; }
.kj-axis { stroke: #3b4457; stroke-width: 1.5; }
.kj-tick { font-size: 11.5px; fill: var(--muted); paint-order: stroke; stroke: #fff; stroke-width: 3px; }
.kj-tick-strong { fill: #9a3412; font-weight: 700; }
.kj-axis-name { font-size: 11.5px; fill: var(--text); }
.kj-curve { fill: none; stroke: var(--c-curve); stroke-width: 2.8; stroke-linejoin: round; }
.kj-curve-1 { fill: none; stroke: var(--c-one); stroke-width: 1.8; stroke-dasharray: 7 5; }
.kj-curve-ext { fill: none; stroke: var(--c-curve); stroke-width: 1.8; stroke-dasharray: 3 4; }
.kj-guide { stroke: #7a8499; stroke-width: 1; stroke-dasharray: 2 3; }
.kj-pt { fill: var(--blue); stroke: #0d2f73; stroke-width: 2; }
.kj-pt-same { stroke: var(--c-one); stroke-width: 3; }
.kj-pt1 { fill: #fff; stroke: var(--c-one); stroke-width: 2.5; }
.kj-pt1-label { font-size: 11.5px; font-weight: 700; fill: var(--c-one); paint-order: stroke; stroke: #fff; stroke-width: 3px; }
.kj-rect { fill: var(--blue-soft); stroke: none; }
.kj-rect-label { font-size: 11.5px; fill: var(--blue-dark); font-weight: 700; }
.kj-zero { fill: #9a3412; }
.kj-zero-label { font-size: 11.5px; fill: #9a3412; font-weight: 700; }
.kj-legend { margin-top: 8px; }
.lg-kj-curve { stroke: var(--c-curve); stroke-width: 3; }
.lg-kj-ext { stroke: var(--c-curve); stroke-width: 2; stroke-dasharray: 3 4; }
.lg-kj-one { stroke: var(--c-one); stroke-width: 2; stroke-dasharray: 7 5; }
.lg-kj-pt { fill: var(--blue); stroke: #0d2f73; stroke-width: 2; }
.lg-kj-pt1 { fill: #fff; stroke: var(--c-one); stroke-width: 2.5; }

/* 読み取り */
.kj-values { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; font-size: 0.88rem; }
.kj-values th, .kj-values td { padding: 2px 0; text-align: left; vertical-align: top; font-weight: 500; }
.kj-values td { text-align: right; font-weight: 700; padding-left: 8px; }
.kj-cmp { font-size: 0.86rem; }
.kj-cmp .kj-fixed td { color: #9a3412; }
.kj-ratio { white-space: nowrap; }
.kj-eq p { margin: 4px 0 0; font-size: 0.88rem; font-variant-numeric: tabular-nums; }
.kj-eq .lbl { display: block; font-size: 0.78rem; color: var(--muted); }
.kj-wrong { margin: 8px 0 0; padding: 6px 10px; border-radius: 8px; background: #fdf0e6; color: #7c2d12; font-size: 0.88rem; }
.kj-wrong[hidden] { display: none; }
.kj-why { margin-top: 10px; }
.kj-bar-row { display: grid; grid-template-columns: 6.6em minmax(0, 1fr) 3.4em; align-items: center; gap: 8px; margin: 4px 0; font-size: 0.86rem; }
.kj-bar { height: 12px; background: #fff; border: 1px solid var(--line); border-radius: 3px; overflow: hidden; }
.kj-bar span { display: block; height: 100%; background: var(--blue); }
.kj-bar-row.total .kj-bar span { background: var(--blue-dark); }
.kj-bar-row output { min-width: 0; font-weight: 700; }
.kj-bar-row.total { font-weight: 700; }

/* 本文の図 */
.kj-figure { margin: 8px 0; text-align: center; }
.kj-figure figcaption { font-size: 0.85rem; color: var(--muted); }
.kj-fig { display: block; width: 100%; max-width: 340px; height: auto; margin: 0 auto; }
.kj-fig text { font-family: var(--font); font-size: 13px; fill: var(--text); }
.kj-fig .f-axis { stroke: #3b4457; stroke-width: 1.5; fill: none; }
.kj-fig .f-line { stroke: var(--blue); stroke-width: 2.8; fill: none; }
.kj-fig .f-ext { stroke: var(--blue); stroke-width: 1.8; stroke-dasharray: 3 4; fill: none; }
.kj-fig .f-guide { stroke: #7a8499; stroke-width: 1; stroke-dasharray: 2 3; fill: none; }
.kj-fig .f-pt { fill: #9a3412; }
.kj-fig .f-accent { fill: #9a3412; font-weight: 700; }
.kj-choose { min-width: 0; }

@media (max-width: 860px) {
  .kj-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "stage" "sliders" "status" "graphs" "extras" "cmp";
  }
  .kj-controls { display: contents; }
  .kj-sliders { grid-area: sliders; margin: 0; }
  .kj-extras { grid-area: extras; min-width: 0; }
  .kj-modes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kj-modes .btn:last-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .kj-graph-row { grid-template-columns: minmax(0, 1fr); }
  .kj-gbtns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}