.bonanza-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.bingo-grid {
    display: grid;
    grid-template-columns: repeat(15, 1fr);
    gap: 4px;
    margin-bottom: 20px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.bingo-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.bingo-cell:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.bingo-header {
    background: #007bff;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.bingo-cell.active {
    background: #28a745;
    color: white;
    border-color: #28a745;
}

.bingo-cell.notActive {
    background: white;
    color: #495057;
}

#celebrationOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

#celebrationOverlay h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 20px;
    text-align: center;
    animation: bounce 1s infinite;
}

#called-numbers-list {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    gap: 10px;
}

#called-numbers-list .number {
    background: #007bff;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: bold;
}

.btn-group .btn {
    margin: 0 5px;
    font-weight: 600;
}

#currentNumber {
    min-width: 80px;
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .bingo-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .bingo-cell {
        font-size: 1rem;
    }
    
    .btn-group {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .btn-group .btn {
        margin: 5px;
    }
}