/* Karakter Takuzu – 6x6, = ve X kısıtları */

.tkz-page {
  font-family: 'Poppins', sans-serif;
  background: var(--bg-dark, #0a0a0f);
  color: var(--text-primary, #fff);
  min-height: 100vh;
  padding-bottom: 2rem;
}

.tkz-header {
  text-align: center;
  padding: 1.5rem 1rem 1rem;
}

.tkz-back {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary, #b0b0b8);
  text-decoration: none;
}
.tkz-back:hover { color: var(--text-primary); }

.tkz-title { font-size: clamp(1.5rem, 5vw, 2rem); font-weight: 700; margin-bottom: 0.25rem; }
.tkz-subtitle { font-size: 0.9rem; color: var(--text-secondary); }

.tkz-main {
  max-width: 420px;
  margin: 0 auto;
  padding: 0 1rem;
}

.tkz-game-wrap {
  background: rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: 1.25rem;
  border: 1px solid rgba(255,255,255,0.08);
}

.tkz-grid-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

/* 11x11: hücreler (2r+1,2c+1), yatay kenar (2r+1,2c+2), dikey kenar (2r+2,2c+1) */
.tkz-grid {
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  grid-template-rows: repeat(11, 1fr);
  width: min(320px, 88vw);
  aspect-ratio: 1;
  background: #1a1a24;
  border-radius: 12px;
  padding: 6px;
  gap: 0;
}

.tkz-cell {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background: #252532;
  border-radius: 8px;
  border: 2px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.tkz-cell:hover { background: rgba(102, 126, 234, 0.25); }
.tkz-cell.selected { border-color: #667eea; background: rgba(102, 126, 234, 0.2); }
.tkz-cell.fixed { cursor: default; }
.tkz-cell.fixed:hover { background: #252532; }

.tkz-sym {
  font-size: clamp(1.2rem, 5vw, 1.6rem);
  line-height: 1;
}
.tkz-sym-1 { color: #ff8844; }   /* turuncu daire */
.tkz-sym-2 { color: #4488ff; }   /* mavi ay */

.tkz-edge {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  min-width: 0;
  min-height: 0;
}
.tkz-edge.eq { color: #43e97b; }
.tkz-edge.x { color: #f5576c; }

.tkz-corner { grid-column: 1; grid-row: 1; min-width: 0; min-height: 0; }

/* Karakter seçimi + aksiyonlar */
.tkz-symbols {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.tkz-sym-btn {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  border: 2px solid rgba(255,255,255,0.15);
  background: #252532;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, transform 0.1s;
}
.tkz-sym-btn:hover { border-color: #667eea; }
.tkz-sym-btn:active { transform: scale(0.97); }
.tkz-sym-btn .tkz-sym { font-size: 1.6rem; }

.tkz-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}
.tkz-btn {
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
}
.tkz-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.tkz-btn-undo { background: #2a2a35; color: var(--text-secondary); }
.tkz-btn-undo:not(:disabled):hover { background: #3a3a48; }
.tkz-btn-hint { background: #fff; color: #1a1a24; border: 2px solid #444; }
.tkz-btn-hint:hover { background: #e8e8f0; }

.tkz-how {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1rem;
}
.tkz-how summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary);
}
.tkz-how-inner { margin-top: 0.5rem; }
.tkz-how-inner p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0.35rem; }

/* Win */
.tkz-win {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.tkz-win.is-visible { opacity: 1; visibility: visible; }
.tkz-win-box {
  background: #1a1a24;
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  max-width: 320px;
  border: 1px solid rgba(67, 233, 123, 0.3);
}
.tkz-win-title { font-size: 1.5rem; margin-bottom: 0.5rem; color: #43e97b; }
.tkz-win-msg { color: var(--text-secondary); margin-bottom: 1.25rem; }
.tkz-win-btn {
  padding: 0.65rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  background: #43e97b;
  color: #0a0a0f;
  border: none;
  cursor: pointer;
}
.tkz-win-btn:hover { filter: brightness(1.1); }

.tkz-cell-hint { animation: tkz-flash 0.6s ease; }
@keyframes tkz-flash {
  0%, 100% { background: #252532; }
  50% { background: rgba(67, 233, 123, 0.5); }
}