.mahjong-game {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.mahjong-game__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.mahjong-game__title {
  margin: 0;
  font-size: 1.25rem;
}

.mahjong-game__stats {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mahjong-stat {
  min-width: 5.8rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.mahjong-stat span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
}

.mahjong-stat strong {
  display: block;
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.2;
}

.mahjong-game__message {
  min-height: 2.8rem;
  margin-bottom: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid #d8e5dc;
  border-radius: var(--radius);
  background: #f4faf6;
  color: #294a3b;
  font-weight: 700;
}

.mahjong-game__message.is-win {
  border-color: #d7bd6b;
  background: #fff8df;
  color: #684f11;
}

.mahjong-game__board-wrap {
  overflow-x: auto;
  padding: 0.2rem 0.1rem 0.7rem;
}

.mahjong-game__board {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: repeat(6, minmax(0, 1fr));
  gap: 0.35rem;
  width: min(100%, 780px);
  min-width: 620px;
  margin: 0 auto;
}

.mahjong-tile {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 0.78;
  min-width: 0;
  border: 1px solid #c7d4cb;
  border-bottom-width: 2px;
  border-radius: 7px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0) 34%),
    linear-gradient(145deg, #fffaf0 0%, #f2eadb 60%, #ded3bd 100%);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  line-height: 1.1;
  translate: calc(var(--layer, 0) * -4px) calc(var(--layer, 0) * -5px);
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.92),
    inset -5px -6px 0 rgba(197, 187, 166, 0.58),
    0 4px 0 rgba(177, 194, 181, 0.95),
    0 11px 18px rgba(22, 34, 29, 0.1);
  transition: transform 130ms ease, border-color 130ms ease, box-shadow 130ms ease, opacity 130ms ease;
}

.mahjong-tile[data-layer="1"] {
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.92),
    inset -5px -6px 0 rgba(197, 187, 166, 0.62),
    0 5px 0 rgba(164, 184, 170, 0.95),
    0 14px 22px rgba(22, 34, 29, 0.14);
}

.mahjong-tile[data-layer="2"] {
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.94),
    inset -5px -6px 0 rgba(190, 178, 157, 0.66),
    0 6px 0 rgba(148, 171, 157, 0.98),
    0 18px 28px rgba(22, 34, 29, 0.18);
}

.mahjong-tile:hover:not(:disabled) {
  border-color: var(--jade);
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.92),
    inset -5px -6px 0 rgba(197, 187, 166, 0.56),
    0 5px 0 rgba(177, 194, 181, 0.95),
    0 15px 22px rgba(29, 117, 88, 0.16);
  transform: translateY(-1px);
}

.mahjong-tile:focus-visible {
  outline: 3px solid rgba(49, 91, 124, 0.36);
  outline-offset: 2px;
}

.mahjong-tile:disabled {
  cursor: not-allowed;
}

.mahjong-tile.is-blocked {
  filter: saturate(0.55);
  opacity: 0.48;
}

.mahjong-tile.is-covered {
  opacity: 0.34;
}

.mahjong-tile.is-selected {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(49, 91, 124, 0.18);
  transform: translateY(-2px);
}

.mahjong-tile.is-hint {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(180, 135, 47, 0.2);
}

.mahjong-tile.is-mismatch {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(168, 67, 62, 0.18);
}

.mahjong-tile.is-removed {
  visibility: hidden;
  pointer-events: none;
}

.mahjong-tile__face {
  display: grid;
  place-items: center;
  width: 78%;
  height: 76%;
  color: var(--ink);
  line-height: 1;
  pointer-events: none;
}

.mahjong-face {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
}

.mahjong-face--dots,
.mahjong-face--bamboo {
  gap: 0.12rem;
}

.mahjong-face[data-count="1"] {
  grid-template-columns: 1fr;
}

.mahjong-face[data-count="2"],
.mahjong-face[data-count="3"] {
  grid-template-columns: 1fr;
}

.mahjong-face[data-count="4"],
.mahjong-face[data-count="5"],
.mahjong-face[data-count="6"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mahjong-face[data-count="7"],
.mahjong-face[data-count="8"],
.mahjong-face[data-count="9"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mahjong-dot {
  display: block;
  width: 0.56rem;
  aspect-ratio: 1;
  border: 2px solid var(--blue);
  border-radius: 999px;
  background:
    radial-gradient(circle at center, #ffffff 0 22%, transparent 24%),
    radial-gradient(circle at center, #8fa9bd 0 52%, #f9fbfb 54%);
  box-shadow: inset 0 0 0 1px rgba(49, 91, 124, 0.18);
}

.mahjong-bamboo {
  display: block;
  width: 0.34rem;
  height: 1rem;
  border: 1px solid rgba(21, 86, 63, 0.42);
  border-radius: 999px;
  background:
    repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.55) 0 2px, rgba(255, 255, 255, 0) 2px 5px),
    linear-gradient(90deg, #0f6047, #6cae92 45%, #0f6047);
}

.mahjong-face--character {
  color: #222927;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-weight: 800;
}

.mahjong-rank {
  display: block;
  font-size: 1.55rem;
}

.mahjong-unit {
  display: block;
  color: #222927;
  font-size: 1.05rem;
  margin-top: -0.12rem;
}

.mahjong-face--symbol {
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: 1.9rem;
  font-weight: 900;
}

.mahjong-tile[data-family="dragon"] .mahjong-face--symbol {
  color: var(--red);
}

.mahjong-tile[data-family="wind"] .mahjong-face--symbol {
  color: #222927;
}

.mahjong-tile[data-family="flower"] .mahjong-face--symbol {
  color: #8f4f8a;
}

.mahjong-tile[data-family="season"] .mahjong-face--symbol {
  color: var(--gold);
}

.mahjong-game__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.7rem;
}

.mahjong-control {
  min-height: 2.55rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 850;
}

.mahjong-control:hover {
  border-color: var(--jade);
  color: var(--jade-dark);
}

.mahjong-control:focus-visible {
  outline: 3px solid rgba(49, 91, 124, 0.32);
  outline-offset: 2px;
}

.mahjong-control--primary {
  background: var(--jade);
  border-color: var(--jade);
  color: white;
}

.mahjong-control--primary:hover {
  background: var(--jade-dark);
  border-color: var(--jade-dark);
  color: white;
}

@media (max-width: 760px) {
  .mahjong-game {
    padding: 0.75rem;
  }

  .mahjong-game__board {
    min-width: 560px;
    gap: 0.28rem;
  }

  .mahjong-tile__face {
    width: 80%;
    height: 78%;
  }

  .mahjong-dot {
    width: 0.48rem;
  }

  .mahjong-bamboo {
    width: 0.3rem;
    height: 0.9rem;
  }

  .mahjong-rank {
    font-size: 1.38rem;
  }

  .mahjong-unit {
    font-size: 0.92rem;
  }

  .mahjong-face--symbol {
    font-size: 1.55rem;
  }
}

@media (max-width: 560px) {
  .mahjong-game__topbar {
    align-items: stretch;
  }

  .mahjong-game__stats {
    width: 100%;
  }

  .mahjong-stat {
    flex: 1 1 5.7rem;
  }

  .mahjong-game__board {
    min-width: 520px;
    gap: 0.22rem;
  }

  .mahjong-tile {
    border-radius: 5px;
    border-bottom-width: 2px;
  }

  .mahjong-tile__face {
    width: 80%;
    height: 78%;
  }

  .mahjong-dot {
    width: 0.44rem;
  }

  .mahjong-bamboo {
    height: 0.82rem;
  }

  .mahjong-rank {
    font-size: 1.24rem;
  }

  .mahjong-unit {
    font-size: 0.82rem;
  }

  .mahjong-face--symbol {
    font-size: 1.38rem;
  }
}