/* Shared styles for the classroom games (projector-friendly, light & dark) */
.game-wrap { min-height: calc(100vh - 60px); display: flex; align-items: center; justify-content: center; gap: 28px; padding: 24px 16px 40px; flex-wrap: wrap; }
.game-card {
  background: rgb(var(--cx-surface)); color: rgb(var(--cx-text));
  border: 1px solid rgb(var(--cx-line)); border-radius: 18px;
  box-shadow: 0 12px 30px rgb(0 0 0 / .08);
  padding: 22px 24px;
  border-top: 4px solid rgb(var(--cx-mauve));
}
.game-title { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 800; margin: 2px 0 0; color: rgb(var(--cx-brand-ink)); }
.game-card .crux-kicker { margin: 0; }
body.crux-page { --grid-accent: rgb(var(--c-plum-700)); --grid-line: rgb(var(--bd-mist-300)); --grid-latest: rgb(var(--bg-mint-200)); }
.readout { color: rgb(var(--cx-brand-ink)); }
.game-sub { color: rgb(var(--cx-muted)); margin: 2px 0 14px; }
.side { width: min(340px, 100%); }
.side h2, .side h3 { margin: 0 0 8px; font-size: 1.1rem; }
.side ul { margin: 6px 0 12px; padding-left: 1.2em; }
.side p { margin: 8px 0; }

/* Grid */
.cgrid { --cell: clamp(26px, min(calc((100vh - 330px) / 8), 10vw, calc((100vw - 120px) / var(--n, 7))), 78px); display: grid; grid-template-columns: auto repeat(var(--n), var(--cell)); gap: 5px; align-items: center; }
.cgrid .lab { font-weight: 700; text-align: center; color: rgb(var(--cx-muted)); font-size: clamp(.8rem, 1.6vmin, 1.1rem); min-width: 1.4em; }
.cgrid .cell {
  width: var(--cell); height: var(--cell); padding: 0;
  border: 2px solid var(--grid-line, rgb(var(--bd-green-200))); border-radius: 8px;
  background: rgb(var(--cx-surface)); color: rgb(var(--tx-plum-700));
  font: 800 calc(var(--cell) * .42)/1 "SEND Read", sans-serif;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: background .15s, border-color .15s, transform .1s;
}
.cgrid .cell:hover { border-color: var(--grid-accent, rgb(var(--c-green-500))); }
.cgrid .cell.marked { background: rgb(var(--cx-surface2)); }
.cgrid .cell.latest { background: var(--grid-latest, rgb(var(--bg-green-100))); border-color: var(--grid-accent, rgb(var(--c-green-500))); transform: scale(1.04); }
.cgrid .cell.marked::after { content: "✕"; }

/* Big readout */
.readout-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; color: rgb(var(--cx-muted)); }
.readout { font-size: clamp(2.2rem, 6vmin, 4rem); font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; min-height: 1.1em; }

.gbtn {
  border: none; border-radius: 999px; padding: 12px 20px; font: 700 1rem/1 "SEND Read", sans-serif; cursor: pointer;
  background: var(--grid-accent, rgb(var(--c-green-600))); color: #fff; display: inline-flex; align-items: center; gap: 8px;
  transition: transform .1s, filter .15s;
}
.gbtn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.gbtn:active { transform: none; }
.gbtn.ghost { background: transparent; color: rgb(var(--cx-text)); border: 1.5px solid rgb(var(--cx-line)); }
.gbtn.ghost:hover { background: rgb(var(--cx-surface2)); }
.gbtn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }

.history { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; max-height: 9.5em; overflow: auto; }
.history span { font-variant-numeric: tabular-nums; font-weight: 700; font-size: .85rem; padding: 3px 9px; border-radius: 999px; background: rgb(var(--cx-surface2)); border: 1px solid rgb(var(--cx-line)); }
.history span:first-child { border-color: var(--grid-accent, rgb(var(--c-green-500))); }
.kbd { font: 600 .75rem/1 ui-monospace, monospace; padding: 2px 6px; border-radius: 4px; border: 1px solid rgb(var(--cx-line)); background: rgb(var(--cx-surface2)); }
.muted { color: rgb(var(--cx-muted)); }
.small { font-size: .85rem; }
:root[data-brand="plain"] body.crux-page { --grid-line: rgb(var(--bd-slate-300)); --grid-latest: rgb(var(--bg-blue-100)); --grid-accent: rgb(var(--c-slate-700)); }