body {
    font-family: 'Arial', sans-serif;
    background-color: #f8fafc;
}

.container {
    max-width: 800px;
}

.cell {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
    background-color: #e2e8f0;
    transition: all 0.2s;
}

.cell:hover {
    background-color: #cbd5e1;
}

.cell.revealed {
    background-color: #f1f5f9;
}

.cell.mine {
    background-color: #fecaca;
}

.cell.flagged {
    background-color: #bfdbfe;
}

.number-1 { color: #2563eb; }
.number-2 { color: #16a34a; }
.number-3 { color: #dc2626; }
.number-4 { color: #7c3aed; }
.number-5 { color: #ea580c; }
.number-6 { color: #0891b2; }
.number-7 { color: #000000; }
.number-8 { color: #4b5563; }

.game-over .cell {
    pointer-events: none;
}

.game-won .cell {
    pointer-events: none;
    background-color: #bbf7d0;
}