/* puzzles/puzzles.css — страница /puzzles. Цвета только из shared/theme.css
   (новых цветовых переменных не вводим); размер доски считается от ширины
   экрана, поэтому на телефоне доска всегда целиком и без горизонтальной прокрутки. */
.puzzles-page { max-width: 1000px; margin: 0 auto; padding: 20px 12px 48px; }
.puzzles-page h1 { font-size: 28px; margin: 4px 0 6px; }
.puzzles-lead { margin: 0 0 14px; color: var(--text-secondary); }

.puzzles-top { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.mode-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.mode-tab {
  padding: 8px 12px; border-radius: 999px; cursor: pointer; font: inherit;
  color: var(--text-primary); background: var(--card-bg); border: 1px solid var(--border-color);
  touch-action: manipulation;
}
.mode-tab[aria-selected="true"] {
  background: linear-gradient(135deg, var(--accent-active), var(--accent-active-strong));
  color: var(--on-active); border-color: transparent; font-weight: 700;
}

.puzzles-layout { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; }
.board-col { --sq: min(calc((100vw - 28px) / 8), 64px); width: calc(var(--sq) * 8); max-width: 100%; }

.board {
  display: grid; grid-template-columns: repeat(8, var(--sq)); grid-auto-rows: var(--sq);
  width: calc(var(--sq) * 8); border-radius: 6px; overflow: hidden;
  border: 2px solid var(--border-color); user-select: none; -webkit-user-select: none;
}
.sq {
  position: relative; display: flex; align-items: center; justify-content: center;
  padding: 0; border: 0; margin: 0; cursor: pointer; font-family: Arial, Helvetica, sans-serif;
  font-size: calc(var(--sq) * 0.78); line-height: 1; touch-action: manipulation;
  background: rgba(255, 255, 255, 0.22);
}
.sq.dark { background: rgba(0, 0, 0, 0.32); }
.sq .pc { pointer-events: none; }
.pw { color: var(--on-solid); text-shadow: 0 0 2px var(--panel-bg-solid), 0 0 2px var(--panel-bg-solid), 0 1px 3px var(--panel-bg-solid); }
.pb { color: var(--panel-bg-solid); text-shadow: 0 0 2px var(--on-solid), 0 0 1px var(--on-solid); }
.sq.last::after, .sq.sel::after, .sq.hint::after, .sq.wrong::after, .sq.target::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
}
.sq.last::after   { background: rgba(var(--accent-gold-rgb), 0.35); }
.sq.sel::after    { box-shadow: inset 0 0 0 3px var(--accent-active); }
.sq.hint::after   { box-shadow: inset 0 0 0 3px var(--accent-info); background: rgba(var(--accent-info-rgb), 0.28); }
.sq.wrong::after  { background: rgba(255, 110, 124, 0.55); }
.sq.target::after { background: radial-gradient(circle, rgba(var(--accent-active-rgb), 0.65) 0 22%, transparent 24%); }
.sq.target.has-piece::after { background: none; box-shadow: inset 0 0 0 3px rgba(var(--accent-active-rgb), 0.8); }
.sq:focus-visible { outline: 3px solid var(--accent-info); outline-offset: -3px; }

.coord { position: absolute; left: 2px; bottom: 1px; font-size: 10px; line-height: 1; color: var(--text-muted); pointer-events: none; }

.pocket { display: flex; flex-wrap: wrap; gap: 4px; min-height: calc(var(--sq) * 0.9); padding: 4px 0; align-items: center; }
.pocket[hidden] { display: none; }
.pocket-piece {
  position: relative; width: calc(var(--sq) * 0.9); height: calc(var(--sq) * 0.9); font-size: calc(var(--sq) * 0.7);
  display: flex; align-items: center; justify-content: center; cursor: pointer; padding: 0;
  background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 6px; touch-action: manipulation;
}
.pocket-piece.sel { box-shadow: 0 0 0 3px var(--accent-active); }
.pocket-piece.hint { box-shadow: 0 0 0 3px var(--accent-info); }
.pocket-piece[disabled] { cursor: default; opacity: 0.85; }
.pocket-count { position: absolute; right: 1px; bottom: 0; font-size: 11px; font-weight: 700; color: var(--text-primary); }

.promo-row { display: flex; gap: 8px; padding: 8px 0; }
.promo-row[hidden] { display: none; }
.promo-btn { width: calc(var(--sq) * 0.95); height: calc(var(--sq) * 0.95); font-size: calc(var(--sq) * 0.72); cursor: pointer; border-radius: 8px; border: 1px solid var(--border-color); background: var(--card-bg); padding: 0; }

.card { padding: 14px 16px; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color); margin-bottom: 12px; }
.puzzle-title { font-weight: 700; margin-bottom: 4px; }
.puzzle-goal { color: var(--text-secondary); margin-bottom: 10px; }
.puzzle-status { min-height: 2.6em; margin-bottom: 10px; font-weight: 600; }
.puzzle-status.ok { color: var(--accent-active-text); }
.puzzle-status.bad { color: var(--accent-danger); }
.puzzle-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.puzzle-actions .btn { padding: 10px 14px; }
.stats > div { display: flex; justify-content: space-between; gap: 10px; padding: 3px 0; }
.stat-label { color: var(--text-secondary); }
.login-hint { display: block !important; color: var(--text-muted); font-size: 14px; }
.login-hint[hidden] { display: none !important; }
.login-hint a { color: var(--accent-info); }

@media (max-width: 760px) {
  .puzzles-layout { grid-template-columns: 1fr; }
  .board-col { margin: 0 auto; }
  .puzzles-page h1 { font-size: 23px; }
}
@media (prefers-reduced-motion: no-preference) {
  .sq.wrong { animation: puzzle-shake 0.3s; }
}
@keyframes puzzle-shake { 25% { transform: translateX(-3px); } 75% { transform: translateX(3px); } }