/* Game Board Layout */
.game-container {
    display: grid;
    grid-template-columns: minmax(600px, 3fr) minmax(200px, 1fr) minmax(250px, 1fr);
    gap: 1rem;
    padding: 1rem;
    height: 100vh;
    background-color: var(--background-color);
}

/* Game Board */
.game-board-container {
    background: linear-gradient(135deg, var(--primary-color), #1b5e20);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    margin: var(--spacing-md) 0;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(15, 1fr);
    gap: 2px;
    aspect-ratio: 1;
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(15, 1fr);
    gap: 2px;
    padding: 10px;
    background-color: #e0e0e0;
    border: 2px solid #666;
    border-radius: 5px;
    width: 100%;
    height: 100%;
}

.board-cell {
    aspect-ratio: 1;
    background-color: var(--surface-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.board-cell:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.board-cell::before {
    content: attr(data-bonus);
    position: absolute;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
    line-height: 1;
    opacity: 0.8;
    text-transform: uppercase;
}

/* Special cell types */
.board-cell.TW {
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    color: white;
}

.board-cell.DW {
    background: linear-gradient(135deg, #ff8a65, #ff5722);
    color: white;
}

.board-cell.TL {
    background: linear-gradient(135deg, #1e88e5, #1565c0);
    color: white;
}

.board-cell.DL {
    background: linear-gradient(135deg, #90caf9, #42a5f5);
    color: white;
}

.board-cell.center {
    background: linear-gradient(135deg, #ffd54f, #ffb300);
    color: white;
}

/* Cell with tile */
.board-cell.has-tile {
    background: var(--surface-color);
    transform: none;
    cursor: default;
}

.board-cell.has-tile:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* Drag and drop interactions */
.board-cell.valid-drop {
    background-color: rgba(46, 125, 50, 0.2);
    transform: scale(1.05);
}

.board-cell.invalid-drop {
    background-color: rgba(211, 47, 47, 0.2);
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

/* Word preview */
.board-cell.preview {
    background-color: rgba(2, 136, 209, 0.1);
}

.board-cell.preview .tile {
    opacity: 0.7;
}

/* Word direction indicators */
.board-cell.word-start::before {
    content: "→";
    color: var(--success-color);
    font-size: var(--font-size-lg);
    font-weight: bold;
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
}

.board-cell.word-start.vertical::before {
    content: "↓";
}

/* Animations */
@keyframes shake {
    10%, 90% {
        transform: translate3d(-1px, 0, 0);
    }
    20%, 80% {
        transform: translate3d(2px, 0, 0);
    }
    30%, 50%, 70% {
        transform: translate3d(-2px, 0, 0);
    }
    40%, 60% {
        transform: translate3d(2px, 0, 0);
    }
}

@keyframes placeTile {
    0% {
        transform: scale(1.2);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Board coordinates */
.board-coordinates {
    display: grid;
    grid-template-columns: auto repeat(15, 1fr);
    grid-template-rows: auto repeat(15, 1fr);
    gap: 2px;
    margin-bottom: var(--spacing-sm);
}

.coordinate-label {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: var(--spacing-xs);
}

/* Board controls */
.board-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
}

.board-action-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.board-action-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.board-action-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.board-action-button i {
    font-size: var(--font-size-md);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .game-board-container {
        margin: var(--spacing-sm) 0;
        padding: var(--spacing-sm);
    }
    
    .board-cell::before {
        font-size: calc(var(--font-size-xs) - 1px);
    }
    
    .coordinate-label {
        font-size: calc(var(--font-size-xs) - 1px);
        padding: var(--spacing-xs) calc(var(--spacing-xs) / 2);
    }
    
    .board-action-button {
        padding: calc(var(--spacing-xs) / 2) var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 480px) {
    .board-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .board-action-button {
        width: 100%;
        justify-content: center;
    }
}

/* Board Labels */
.board-label {
    position: absolute;
    font-size: 0.6em;
    color: #666;
}

.board-label.top {
    top: 2px;
    left: 2px;
}

.board-label.bottom {
    bottom: 2px;
    right: 2px;
}