*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: #f5f2ee;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-family: 'Georgia', serif;
}

.grid-wrap {
  position: relative;
  display: inline-block;
}

.grid {
  display: grid;
  grid-template-columns: repeat(9, 104px);
  grid-template-rows: repeat(5, 104px);
  position: relative;
  border-left: 1px solid rgba(0,0,0,0.12);
  border-top: 1px solid rgba(0,0,0,0.12);
}

.cell {
  position: relative;
  width: 104px;
  height: 104px;
  border-right: 1px solid rgba(0,0,0,0.12);
  border-bottom: 1px solid rgba(0,0,0,0.12);
  cursor: default;
}

.cell-num {
  position: absolute;
  top: 5px;
  left: 7px;
  font-size: 9px;
  color: rgba(0,0,0,0.2);
  font-family: 'IBM Plex Sans Condensed', sans-serif;
  pointer-events: none;
  z-index: 3;
}

.cell.black { cursor: pointer; }

/* Dark tile */
.cell-fill {
  position: absolute;
  inset: 0;
  background: #1c1c1c;
  border-radius: 8px;
  z-index: 3;
}
.cell-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow:
    inset 3px 3px 8px rgba(121, 121, 121, 0.45),
    inset -2px -2px 6px rgba(255, 255, 255, 0.5);
  pointer-events: none;
}

/* Door animation */
.cell.open .cell-fill {
  animation: doorOpen 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  transform-origin: left center;
  transform-style: preserve-3d;
}
.cell.closing .cell-fill {
  animation: doorClose 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  transform-origin: left center;
  transform-style: preserve-3d;
}

@keyframes doorOpen {
  0%   { transform: perspective(300px) rotateY(0deg); }
  100% { transform: perspective(300px) rotateY(-82deg); }
}
@keyframes doorClose {
  0%   { transform: perspective(300px) rotateY(-82deg); }
  100% { transform: perspective(300px) rotateY(0deg); }
}

/* Character image behind tile */
.cell-img {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 0;
}
.cell-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 10px;
}

/* Speech bubble — liquid glass */
.bubble {
  position: absolute;
  left: 96px;
  top: 50%;
  margin-top: -18px;
  background: #ffffff80;
  backdrop-filter: blur(24px) saturate(180%) brightness(1.2);
  -webkit-backdrop-filter: blur(32px) saturate(180%) brightness(1.08);
  border-radius: 99px;
  padding: 8px 12px;
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  line-height: 1.5;
  color: rgba(0, 0, 0, 0.9);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.88) translateY(3px);
  transition: opacity 0.22s 0.46s, transform 0.22s 0.46s;
  z-index: 4;
  box-shadow:
    0 6px 40px rgba(0,0,0,0.05),
    0 2px 8px rgba(0,0,0,0.02);
}
.cell.open .bubble {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* Hint label */
.hint {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.7rem;
  font-family: 'IBM Plex Sans Condensed', sans-serif;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.35);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 600px) {
  .grid {
    grid-template-columns: repeat(5, 64px);
    grid-template-rows: repeat(7, 64px);
  }
  .cell { width: 64px; height: 64px; }
  .cell-fill { border-radius: 5px; }
  .cell-img img { border-radius: 6px; }
  .bubble { left: 58px; font-size: 10px; padding: 6px 10px; }
}