.game-layout {
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(360px, 1.35fr) minmax(260px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.game-panel,
.game-board-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--panel-bg);
  box-shadow: var(--shadow-sm);
}

.game-panel h2,
.game-board-panel h2 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.current-block p,
.game-message {
  color: var(--color-muted);
  line-height: 1.7;
}

.join-panel label {
  display: block;
  margin: 16px 0 8px;
  color: var(--color-muted);
  font-weight: 800;
}

.join-row {
  display: grid;
  gap: 10px;
}

.join-row input {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  padding: 0 12px;
  background: var(--color-surface);
  color: var(--color-text);
}

.game-message {
  margin: 14px 0 0;
  border-left: 3px solid var(--esap-blue);
  padding: 10px 12px;
  background: rgba(77, 166, 255, 0.08);
  font-size: 0.92rem;
}

.board-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.board-header h2 {
  font-size: clamp(1.35rem, 3vw, 1.85rem);
}

.board-side-status {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.turn-badge {
  border: 1px solid rgba(255, 105, 180, 0.28);
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(255, 105, 180, 0.12);
  color: var(--esap-pink-dark);
  font-size: 0.78rem;
  font-weight: 900;
}

.board-block-card {
  display: none;
  min-width: 0;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(77, 166, 255, 0.24);
  border-radius: var(--radius);
  padding: 6px 9px;
  background: rgba(77, 166, 255, 0.07);
  white-space: nowrap;
}

.board-block-card.active-turn {
  border-color: rgba(77, 166, 255, 0.55);
  background: rgba(77, 166, 255, 0.12);
}

.board-block-label {
  display: inline-flex;
  color: var(--color-muted);
  font-size: 0.62rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.board-block-value {
  min-height: 24px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  margin: 0;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
}

.board-block-preview-slot {
  width: 26px;
  height: 26px;
  display: inline-flex;
  flex: 0 0 26px;
  align-items: center;
  justify-content: center;
}

.board-block-preview-slot .block-preview.board-block-preview {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
}

.board-block-preview-slot .block-preview.diamond.board-block-preview {
  width: 20px;
  height: 20px;
  flex-basis: 20px;
}

.board-block-preview-slot .block-preview.triangle.board-block-preview {
  width: 0;
  height: 0;
  flex: 0 0 26px;
  border-right-width: 13px;
  border-bottom-width: 22px;
  border-left-width: 13px;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: min(100%, 440px);
  margin: 0 auto;
}

.board-cell {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  background: var(--color-soft);
  transition:
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.board-cell:not(:disabled):hover,
.board-cell:not(:disabled):focus {
  border-color: var(--esap-pink);
  background: var(--color-surface);
  transform: translateY(-2px);
}

.board-cell:disabled {
  cursor: not-allowed;
}

.board-cell.occupied {
  background: var(--color-surface);
}

.board-cell.available {
  border-color: rgba(77, 166, 255, 0.58);
  background: rgba(77, 166, 255, 0.06);
  box-shadow: inset 0 0 0 1px rgba(77, 166, 255, 0.16);
}

.board-cell.cleared {
  animation: cleared-cell-scale 420ms ease-out;
}

.board-cell.cleared::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 105, 180, 0.32), rgba(77, 166, 255, 0.26));
  animation: cleared-cell-fade 420ms ease-out forwards;
}

.block-preview {
  display: inline-block;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  aspect-ratio: 1;
  background: var(--color-primary);
}

.block-preview.clearing-block {
  animation: cleared-block-fade 300ms ease-out forwards;
}

.block-preview.diamond.clearing-block {
  animation-name: cleared-diamond-block-fade;
}

.block-placeholder {
  display: inline-block;
  width: 42px;
  height: 42px;
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius);
  background: var(--color-soft);
}

.block-preview.circle {
  border-radius: 50%;
}

.block-preview.square {
  border-radius: var(--radius);
}

.block-preview.diamond {
  transform: rotate(45deg) scale(0.82);
  border-radius: 6px;
}

.block-preview.triangle {
  width: 0;
  height: 0;
  aspect-ratio: auto;
  border-right: 24px solid transparent;
  border-bottom: 42px solid var(--color-primary);
  border-left: 24px solid transparent;
  background: transparent;
}

.block-pink {
  background: var(--esap-pink);
}

.block-blue {
  background: var(--esap-blue);
}

.block-green {
  background: #2fd180;
}

.block-yellow {
  background: var(--color-amber);
}

.block-preview.triangle.block-pink {
  border-bottom-color: var(--esap-pink);
}

.block-preview.triangle.block-blue {
  border-bottom-color: var(--esap-blue);
}

.block-preview.triangle.block-green {
  border-bottom-color: #2fd180;
}

.block-preview.triangle.block-yellow {
  border-bottom-color: var(--color-amber);
}

.current-block {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--soft-panel-bg);
}

.current-block > .block-preview,
.current-block > .block-placeholder {
  justify-self: center;
}

.current-block.active-turn {
  border-color: var(--esap-blue);
  background: rgba(77, 166, 255, 0.1);
}

.game-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 0;
}

.game-stats div {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--soft-panel-bg);
}

.game-stats dt {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.game-stats dd {
  margin: 4px 0 0;
  font-weight: 900;
}

.player-list {
  margin-top: 22px;
}

.player-list h3,
.scoreboard h3 {
  margin: 0 0 10px;
}

.player-list ol,
.scoreboard {
  margin-top: 22px;
}

.player-list ol,
.scoreboard ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.player-list li,
.scoreboard li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.player-list li {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.player-list .active-player,
.scoreboard .active-player {
  color: var(--color-text);
  font-weight: 900;
}

@keyframes cleared-cell-scale {
  0% {
    border-color: var(--esap-pink);
    transform: scale(1);
  }

  45% {
    border-color: var(--esap-blue);
    transform: scale(1.015);
  }

  100% {
    border-color: var(--color-border-strong);
    transform: scale(1);
  }
}

@keyframes cleared-cell-fade {
  0% {
    opacity: 0.62;
  }

  100% {
    opacity: 0;
  }
}

@keyframes cleared-block-fade {
  0% {
    opacity: 1;
    transform: scale(1);
  }

  100% {
    opacity: 0;
    transform: scale(0.82);
  }
}

@keyframes cleared-diamond-block-fade {
  0% {
    opacity: 1;
    transform: rotate(45deg) scale(0.82);
  }

  100% {
    opacity: 0;
    transform: rotate(45deg) scale(0.68);
  }
}

@media (max-width: 1024px) {
  .game-layout {
    grid-template-columns: 1fr;
  }

  .join-panel {
    order: 1;
  }

  .state-panel {
    order: 2;
  }

  .game-board-panel {
    order: 3;
  }

  .board-block-card {
    display: inline-flex;
  }
}

@media (max-width: 680px) {
  .game-layout {
    gap: 14px;
  }

  .game-panel,
  .game-board-panel {
    padding: 16px;
  }

  .game-message {
    font-size: 0.88rem;
  }

  .board-header {
    display: grid;
    gap: 8px;
    margin-bottom: 14px;
  }

  .board-side-status {
    justify-content: flex-start;
    align-items: center;
  }

  .turn-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .board-block-card {
    max-width: 100%;
  }

  .board-grid {
    gap: 8px;
    width: min(100%, 360px);
  }

  .board-cell {
    min-height: auto;
  }

  .block-preview {
    width: 34px;
    height: 34px;
  }

  .block-preview.triangle {
    border-right-width: 20px;
    border-bottom-width: 34px;
    border-left-width: 20px;
  }

  .board-block-preview-slot .block-preview.board-block-preview {
    width: 22px;
    height: 22px;
    flex-basis: 22px;
  }

  .board-block-preview-slot .block-preview.diamond.board-block-preview {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }

  .board-block-preview-slot .block-preview.triangle.board-block-preview {
    width: 0;
    height: 0;
    flex-basis: 26px;
    border-right-width: 13px;
    border-bottom-width: 22px;
    border-left-width: 13px;
  }

  .game-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .game-stats {
    grid-template-columns: 1fr;
  }

  .board-grid {
    gap: 6px;
  }

  .block-preview {
    width: 30px;
    height: 30px;
  }

  .block-preview.triangle {
    border-right-width: 17px;
    border-bottom-width: 30px;
    border-left-width: 17px;
  }

  .board-block-preview-slot .block-preview.board-block-preview {
    width: 22px;
    height: 22px;
    flex-basis: 22px;
  }

  .board-block-preview-slot .block-preview.diamond.board-block-preview {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }

  .board-block-preview-slot .block-preview.triangle.board-block-preview {
    width: 0;
    height: 0;
    flex-basis: 26px;
    border-right-width: 13px;
    border-bottom-width: 22px;
    border-left-width: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .board-cell.cleared {
    animation: none;
    border-color: var(--esap-blue);
    background: rgba(77, 166, 255, 0.18);
  }

  .board-cell.cleared::after {
    content: none;
  }

  .block-preview.clearing-block {
    display: none;
  }
}