/* ----------------------------------------------------
   GLOBAL: Fullscreen background (main app)
----------------------------------------------------- */
body {
  margin: 0;
  padding: 0;
  background: url("assets/theme1.jpg") center center / cover no-repeat fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: background 1.2s ease-in-out;
  font-family: "Segoe UI", Arial, sans-serif;
}

html, body {
  height: 100%;
}

/* ----------------------------------------------------
 GAME WRAPPER
----------------------------------------------------- */
#game-board {
  min-height: 100vh;
}

#game-container.hidden {
  display: none;
}

#game-container {
  background-size: contain !important;
  background-position: center !important;
  background-repeat: no-repeat !important;

  width: 340px;
  margin: 40px auto;
  text-align: center;
  padding: 20px;
  background-color: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  border-radius: 16px;
  color: #181313ef;
  box-shadow: 0 0 20px rgba(0,0,0,0.45);
  transition: transform 0.35s ease, opacity 0.35s ease;
}

#game-container.minimized {
  transform: scale(0.14);
  opacity: 0;
  pointer-events: none;
}

/* ----------------------------------------------------
 TITLES
----------------------------------------------------- */
.title {
  font-size: 28px;
  margin-bottom: 6px;
}

#theme-indicator {
  font-size: 16px;
  margin-bottom: 14px;
}

/* ----------------------------------------------------
 BOARD / CELLS
----------------------------------------------------- */
.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.cell {
  width: 90px;
  height: 90px;
  font-size: 58px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(255,255,255,0.25);
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
  overflow: hidden;
}

.cell:hover {
  background: rgba(255,255,255,0.4);
  transform: scale(1.05);
}

.x {
  color: #ffd700;
  text-shadow: 0 0 8px #ff8c00;
}
.o {
  color: #00eaff;
  text-shadow: 0 0 8px #0088ff;
}

.piece-img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
}

/* ----------------------------------------------------
 RESET BUTTON
----------------------------------------------------- */
#reset-btn {
  margin-top: 16px;
  padding: 10px 20px;
  font-size: 15px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: white;
  color: #000;
  font-weight: bold;
}

/* ----------------------------------------------------
 CONFETTI CANVAS
----------------------------------------------------- */
#confetti-canvas {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  pointer-events:none;
  border-radius:16px;
}

/* ----------------------------------------------------
 POPUP
----------------------------------------------------- */
.popup {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.92);
  background: linear-gradient(180deg, rgba(6,6,10,0.92), rgba(14,8,20,0.85));
  border-radius: 14px;
  padding: 18px;
  width: min(360px, 86vw);
  color: #fff;
  box-shadow: 0 15px 60px rgba(0,0,0,0.6),
              0 0 32px rgba(120,50,200,0.06) inset;
  z-index: 1500;
  opacity: 0;
  pointer-events: none;
  transition: transform 280ms cubic-bezier(.2,.9,.3,1),
              opacity 220ms;
}

#game-container .popup {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.92);
  width: 90%;
  max-width: 320px;
  z-index: 2000;
}

.popup.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.popup.hidden {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.92);
  pointer-events: none;
}

.popup-btn {
  margin-top: 12px;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight:700;
  background: linear-gradient(180deg,#ffd6ff,#ff8bfb);
  color:#360032;
  box-shadow: 0 8px 30px rgba(180,80,200,0.18);
}

#winner-piece-img {
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
}

/* ----------------------------------------------------
 CLOSE BUTTON INSIDE WIDGET
----------------------------------------------------- */
.tablet-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: none;
  background: rgba(255,255,255,0.06);
  color: #2b6cff;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
  z-index: 100;
}

/* ----------------------------------------------------
 DRAGGABLE LAUNCHER (bottom-right)
----------------------------------------------------- */
#launcher-icon {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background-image: url("assets/knight.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-size: 20px;
  cursor: grab;
  z-index: 1600;
  box-shadow: 0 12px 40px rgba(0,0,0,0.45);
}

/* Hidden helper */
.hidden {
  display: none !important;
}

/* ----------------------------------------------------
 RESPONSIVE
----------------------------------------------------- */
@media (max-width:420px){
  #game-container { width: 94%; margin: 28px auto; padding: 14px; }
  .cell { width: min(18vw, 72px); height: min(18vw,72px); }
  .piece-img { width: 72%; height: 72%; }
}