.make10-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.make10-wrapper .game-container {
    background: #ffffff;
    width: 100%;
    max-width: 380px;
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    position: relative;
    border: 1px solid #eee;
}

.make10-wrapper .close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #ff4757;
    color: white;
    border: none;
    padding: 5px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    z-index: 10;
}

.make10-wrapper .header h1 {
    color: #2f3542;
    margin-bottom: 5px;
    font-size: 24px;
}

.make10-wrapper .score-board {
    font-size: 20px;
    font-weight: bold;
    color: #1e90ff;
    margin-bottom: 10px;
}

.make10-wrapper .instruction {
    font-size: 14px;
    color: #747d8c;
    margin-bottom: 20px;
}

.make10-wrapper .grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.make10-wrapper .card {
    aspect-ratio: 1/1;
    background: #f1f2f6;
    color: #2f3542;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    border-radius: 12px;
    cursor: pointer;
    transition: 0.2s;
    user-select: none;
    border: 2px solid transparent;
}

.make10-wrapper .card:hover {
    background: #dfe4ea;
}

.make10-wrapper .card.selected {
    background: #1e90ff;
    color: white;
    transform: scale(1.05);
}

.make10-wrapper .card.matched {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.make10-wrapper .restart-btn {
    margin-top: 25px;
    width: 100%;
    background: #2ed573;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

.make10-wrapper .restart-btn:hover {
    background: #26af5c;
}