@charset "UTF-8";

body {
  margin: 0;
  padding: 0;
  background-image: url(../../img/expression-bg4.png);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  font-family: "Taipei Sans TC Beta", sans-serif;
  color: #fff;
  height: 100vh;
}

.minesweeper-container {
  max-width: 600px;
  margin: 2rem auto;
  text-align: center;
  padding: 1rem;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  -webkit-box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.header {
  margin-bottom: 1rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  min-height: 41px;
}

.header button {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 8px;
  background: linear-gradient(45deg, #ff00cc, #3333ff);
  color: white;
  font-size: 1rem;
  cursor: pointer;
}

.header button:hover {
  opacity: 0.85;
}

#board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(32px, 1fr));
  gap: 2px;
}

.cell {
  width: 100%;
  aspect-ratio: 1/1;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 6px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  -webkit-transition: background 0.2s;
  transition: background 0.2s;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  /* 防止長按時顯示系統選單 */
}

.cell.open {
  background: rgba(255, 255, 255, 0.1);
  cursor: default;
  -webkit-box-shadow: inset 1px 1px 1px rgba(255, 255, 255, 0.1), inset -1px -1px 1px rgba(0, 0, 0, 0.1);
  box-shadow: inset 1px 1px 1px rgba(255, 255, 255, 0.1), inset -1px -1px 1px rgba(0, 0, 0, 0.1);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.cell.flag::after {
  content: "🚩";
}

.cell.bomb {
  overflow: hidden;
  position: relative;
  background-image: url(bomb-img.png);
  background-size: 40px 40px;
  background-position: center;
  background-repeat: no-repeat;
  background-color: rgba(255, 255, 255, 0.45);
}

.cell.bomb::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%, rgba(0, 0, 0, 0.2) 100%);
  border-radius: 6px;
  pointer-events: none;
}

.cell.bomb::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  -webkit-filter: blur(2px);
  filter: blur(2px);
  pointer-events: none;
}

#status {
  font-size: 1rem;
  padding: 0.4rem 0.8rem;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  margin-left: auto;
}

@-webkit-keyframes bombFloat {

  0%,
  100% {
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
  }

  50% {
    -webkit-transform: translateY(0px);
    transform: translateY(0px);
  }
}

@keyframes bombFloat {

  0%,
  100% {
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
  }

  50% {
    -webkit-transform: translateY(0px);
    transform: translateY(0px);
  }
}

@media (max-width: 480px) {
  .minesweeper-container {
    margin: 1rem;
  }

  .header {
    gap: 0.5rem;
  }
}

.board-disabled {
  pointer-events: none;
  opacity: 0.7;
  position: relative;
}

.board-disabled::after {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.7);
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1.2rem;
  white-space: nowrap;
}