* { box-sizing: border-box; }
[hidden] { display: none !important; }

:root {
  --green: #4a6b2a;
  --green-dark: #3a5520;
  --green-mid: #5a8835;
  --cream: #fffdf5;
  --cream-2: #f3f0e4;
  --border-gold: #b8862c;
  --border-soft: #b8a86c;
  --ink: #3a3320;
  --sq-light: #f6efd6;
  --sq-dark: #b3c48c;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 24px 14px calc(24px + env(safe-area-inset-bottom));
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: linear-gradient(180deg, var(--cream-2) 0%, #e7e0c8 100%);
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--ink);
}

.card {
  width: 100%;
  max-width: 640px;
  background: var(--cream);
  border: 1.5px solid var(--border-gold);
  border-radius: 14px;
  padding: 24px 26px 28px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  position: relative;
  overflow: hidden;
}

h1 { margin: 0 0 6px; color: var(--green); font-size: 28px; }
.hint { margin: 0 0 20px; color: #8a7a4a; font-size: 14px; line-height: 1.5; }

/* ---------- Настройки ---------- */
.control { margin-bottom: 18px; }
.control-label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--green); }

.opponents { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.opp {
  font-family: inherit;
  text-align: left;
  padding: 12px 14px;
  border: 1.5px solid var(--border-soft);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: auto auto;
  column-gap: 10px;
  align-items: center;
  transition: background .15s, border-color .15s;
}
.opp:hover { border-color: var(--green-mid); }
.opp[aria-checked="true"] { background: #e4edcd; border-color: var(--green-mid); box-shadow: inset 0 0 0 1.5px var(--green-mid); }
.opp:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; }

.opp-emoji { grid-row: 1 / 3; font-size: 32px; line-height: 1; }
.opp-name { font-weight: 700; color: var(--green-dark); font-size: 16px; }
.opp-lvl { font-weight: 400; font-size: 12px; color: #8a7a4a; }
.opp-desc { font-size: 12.5px; color: #6a5a30; line-height: 1.35; }
.opp-stars { grid-column: 2; font-size: 11px; min-height: 0; letter-spacing: 1px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: inherit;
  font-size: 15px;
  padding: 8px 14px;
  border: 1.5px solid var(--border-soft);
  border-radius: 999px;
  background: #fff;
  color: #5a4a20;
  cursor: pointer;
  user-select: none;
  transition: background .15s, border-color .15s, color .15s;
}
.chip:hover { border-color: var(--green-mid); }
.chip[aria-checked="true"] { background: #c8d8a4; border-color: var(--green-mid); color: var(--green-dark); font-weight: 700; }
.chip:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; }
.chip-ico { font-size: 18px; margin-right: 4px; }

.switch { display: flex; align-items: center; gap: 10px; margin: 4px 0 14px; font-size: 14px; color: #6a5a30; cursor: pointer; }
.switch input { width: 18px; height: 18px; accent-color: var(--green-mid); cursor: pointer; }

.best-line { margin: 0 0 12px; font-size: 14px; color: var(--green-dark); min-height: 1em; }
.best-line b { color: var(--green); }

.btn-start {
  margin-top: 6px;
  width: 100%;
  font-family: inherit;
  font-size: 17px;
  font-weight: 700;
  padding: 13px;
  border: 1.5px solid var(--green-mid);
  border-radius: 10px;
  background: #c8d8a4;
  color: var(--green-dark);
  cursor: pointer;
  transition: background .15s;
}
.btn-start:hover { background: #d6e4b6; }
.btn-start:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; }

/* ---------- Игра ---------- */
.topline { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; margin-bottom: 10px; }

.opp-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--green-dark);
  background: var(--cream-2);
  border: 1.5px solid var(--border-soft);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 15px;
}

.stat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--cream-2);
  border: 1.5px solid var(--border-soft);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--green-dark);
}
.status { font-weight: 700; }

.captured { min-height: 26px; display: flex; flex-wrap: wrap; gap: 2px; align-items: center; margin: 4px 2px; }
.captured .piece { width: 22px; height: 22px; }

/* ---------- Доска ---------- */
.board-wrap { margin: 4px auto 4px; max-width: 480px; }

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  width: 100%;
  aspect-ratio: 1 / 1;
  border: 3px solid var(--green-dark);
  border-radius: 10px;
  overflow: hidden;
  touch-action: manipulation;
  box-shadow: 0 3px 12px rgba(0,0,0,.15);
}

.sq {
  position: relative;
  padding: 0;
  border: none;
  cursor: pointer;
  font-family: inherit;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.sq.light { background: var(--sq-light); }
.sq.dark { background: var(--sq-dark); }

.sq .piece { position: absolute; inset: 4%; width: 92%; height: 92%; display: block; pointer-events: none; }
.piece.w { --pfill: #fffdf5; --pstroke: #4a3f22; }
.piece.b { --pfill: #55683a; --pstroke: #26301a; }

/* координаты по краям */
.sq[data-rank]::before, .sq[data-file]::after {
  position: absolute;
  font-size: clamp(8px, 1.8vw, 11px);
  font-weight: 700;
  color: rgba(58, 51, 32, .55);
  pointer-events: none;
}
.sq[data-rank]::before { content: attr(data-rank); top: 2px; left: 3px; }
.sq[data-file]::after { content: attr(data-file); bottom: 1px; right: 3px; }

/* выбранная фигура и последний ход */
.sq.sel { box-shadow: inset 0 0 0 3px var(--border-gold); }
.sq.last { box-shadow: inset 0 0 0 100vmax rgba(229, 185, 60, .28); }
.sq.sel.last { box-shadow: inset 0 0 0 3px var(--border-gold), inset 0 0 0 100vmax rgba(229, 185, 60, .28); }

/* куда можно пойти: точка — пустая клетка, кольцо — взятие */
.sq.legal::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 26%; height: 26%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(74, 107, 42, .5);
}
.sq.legal-cap { box-shadow: inset 0 0 0 4px rgba(201, 95, 95, .8); }

/* шах: король подсвечен */
.sq.check { background: radial-gradient(circle, rgba(201, 95, 95, .85) 0%, rgba(201, 95, 95, .25) 70%); }

/* подсказка */
.sq.hintmark { animation: hintpulse 1.4s ease 2; box-shadow: inset 0 0 0 4px #e5b93c; }
@keyframes hintpulse {
  0%, 100% { box-shadow: inset 0 0 0 4px #e5b93c; }
  50% { box-shadow: inset 0 0 0 7px #e5b93c; }
}

/* ---------- Кнопки игры ---------- */
.game-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }

.btn-secondary {
  font-family: inherit;
  font-size: 14.5px;
  padding: 10px 14px;
  border: 1.5px solid var(--border-soft);
  border-radius: 10px;
  background: #fff;
  color: var(--green-dark);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.btn-secondary:hover { border-color: var(--green-mid); background: var(--cream-2); }
.btn-secondary:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; }

/* ---------- Оверлеи ---------- */
.win-overlay {
  position: fixed;
  inset: 0;
  background: rgba(58, 51, 32, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
  animation: fadein .25s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.win-box {
  background: var(--cream);
  border: 1.5px solid var(--border-gold);
  border-radius: 16px;
  padding: 28px 30px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0,0,0,.25);
  animation: rise .3s ease;
}
@keyframes rise { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.win-emoji { font-size: 56px; animation: bounce 1s ease infinite; }
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.win-box h2 { margin: 8px 0 6px; color: var(--green); font-size: 26px; }
.win-text { margin: 0 0 20px; color: #6a5a30; font-size: 16px; line-height: 1.5; }
.win-text b { color: var(--green); }
.win-actions { display: flex; flex-direction: column; gap: 10px; }
.win-actions .btn-start { margin-top: 0; }

/* превращение пешки */
.promo-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.promo-btn {
  font-family: inherit;
  font-size: 12.5px;
  padding: 10px 4px 8px;
  border: 1.5px solid var(--border-soft);
  border-radius: 12px;
  background: #fff;
  color: var(--green-dark);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: border-color .15s, background .15s;
}
.promo-btn:hover { border-color: var(--green-mid); background: var(--cream-2); }
.promo-btn .piece { width: 44px; height: 44px; }

/* ---------- Салют ---------- */
.confetti { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 20; }
.confetti i {
  position: absolute;
  top: -14px;
  width: 10px;
  height: 14px;
  border-radius: 3px;
  opacity: .95;
  animation: confall linear forwards;
}
@keyframes confall {
  to { top: 105%; transform: rotate(720deg); }
}

@media (prefers-reduced-motion: reduce) {
  .win-emoji, .win-overlay, .win-box { animation: none; }
  .sq.hintmark { animation: none; }
  .confetti { display: none; }
}

@media (max-width: 460px) {
  .card { padding: 16px 10px 20px; }
  h1 { font-size: 24px; }
  .opponents { grid-template-columns: 1fr; }
  .game-actions { gap: 6px; }
  .btn-secondary { padding: 9px 10px; font-size: 13.5px; }
}

/* ===== Переключатель режимов + новые режимы (расстановка, мат в 1) ===== */
.modebar { display: flex; gap: 6px; margin: 4px 0 16px; flex-wrap: wrap; }
.modetab {
  flex: 1 1 auto; min-width: 120px; border: 1.5px solid var(--border-soft); background: var(--cream-2);
  color: var(--ink); border-radius: 12px; padding: 10px 12px; font-size: 15px; font-weight: 700;
  cursor: pointer; font-family: inherit; transition: background .12s, border-color .12s;
}
.modetab:hover { border-color: var(--green-mid); }
.modetab.on { background: var(--green); border-color: var(--green-dark); color: #fff; }
.modetab:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; }

.side-control { margin-bottom: 10px; }

/* лоток фигур для «Расставь фигуры» */
.tray { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 10px auto; max-width: 480px; }
.tray-chip {
  position: relative; width: 46px; height: 46px; border: 1.5px solid var(--border-soft);
  background: var(--cream-2); border-radius: 10px; cursor: pointer; padding: 3px;
  display: flex; align-items: center; justify-content: center; transition: transform .1s, border-color .12s, background .12s;
}
.tray-chip .piece { width: 100%; height: 100%; }
.tray-chip:hover { border-color: var(--green-mid); }
.tray-chip.sel { border-color: var(--green-dark); background: #c8d8a4; box-shadow: 0 0 0 2px var(--green-mid); }
.tray-chip.empty { opacity: .35; cursor: default; }
.tray-cnt {
  position: absolute; bottom: -4px; right: -4px; background: var(--green); color: #fff;
  font-size: 11px; font-weight: 700; min-width: 16px; height: 16px; line-height: 16px;
  border-radius: 8px; text-align: center; padding: 0 3px;
}

.sq.arr-wrong { box-shadow: inset 0 0 0 4px rgba(201, 95, 95, .85); }
.sq.arr-hint { box-shadow: inset 0 0 0 4px #e5b93c; }

.status.good { color: var(--green); }
.status.bad { color: #b3392e; }
.mate-progress { text-align: center; color: var(--muted, #8a7a4a); font-size: 13px; margin: 6px 0; font-weight: 700; }