/* Emoji Xotira — sof CSS, framework yo'q.
   Ranglar Telegram theme o'zgaruvchilaridan olinadi, har birida fallback bor. */

:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #000000);
  --accent: var(--tg-theme-button-color, #3390ec);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --panel: var(--tg-theme-secondary-bg-color, #f4f4f5);
  --hint: var(--tg-theme-hint-color, #999999);
  --radius: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  user-select: none;
  -webkit-user-select: none;
}

.hidden { display: none !important; }

/* --- O'yin ekrani --- */

.screen {
  max-width: 360px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stats {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.stat {
  flex: 1;
  padding: 10px;
  border-radius: var(--radius);
  background: var(--panel);
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--hint);
}

.stat-value {
  display: block;
  font-size: 22px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* --- Grid --- */

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.card {
  aspect-ratio: 1;
  perspective: 600px;   /* 3D flip uchun kerak */
  cursor: pointer;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform .4s;
}

/* Ochilgan yoki topilgan karta 180 gradus buriladi */
.card.flipped .card-inner,
.card.matched .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card-front {
  background: var(--accent);
  color: var(--accent-text);
  font-size: 26px;
  font-weight: 700;
}

.card-back {
  background: var(--panel);
  font-size: 30px;
  transform: rotateY(180deg);
}

/* Topilgan juft xiralashadi va bir marta "pulse" qiladi */
.card.matched {
  cursor: default;
  opacity: .55;
  animation: pulse .4s ease;
}

@keyframes pulse {
  50% { transform: scale(1.08); }
}

/* --- Tugmalar --- */

.actions { display: flex; }

.btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary {
  background: var(--panel);
  color: var(--text);
}

/* --- Modallar --- */

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(0, 0, 0, .5);
}

.modal {
  width: 100%;
  max-width: 340px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 20px;
  border-radius: 16px;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-title {
  font-size: 20px;
  text-align: center;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--panel);
}

.result-row dt { color: var(--hint); }
.result-row dd { font-weight: 600; font-variant-numeric: tabular-nums; }

.hint {
  font-size: 13px;
  color: var(--hint);
  text-align: center;
}

/* --- Reyting ro'yxati --- */

.board {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.board-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 10px;
  background: var(--panel);
  font-size: 14px;
}

.board-rank {
  min-width: 22px;
  font-weight: 700;
  color: var(--accent);
}

.board-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.board-score {
  color: var(--hint);
  font-variant-numeric: tabular-nums;
}