body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #f0f0f0;
}

#game-container {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

#info {
    font-size: 18px;
    margin-bottom: 20px;
}

#coin {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 20px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 72px;
    color: #333;
    background-color: #ffd700;
    transition: transform 0.3s ease;
}

#coin:hover {
    transform: scale(1.05);
}

#shop {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.shop-item {
    position: relative;
    width: 80px;
    text-align: center;
    cursor: pointer;
}

.shop-coin {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
}

.coin-name {
    font-size: 12px;
    margin-top: 5px;
}

.coin-tooltip {
    display: none;
    position: absolute;
    background-color: #333;
    color: #fff;
    padding: 10px;
    border-radius: 5px;
    z-index: 1;
    width: 150px;
    left: 50%;
    transform: translateX(-50%);
    bottom: 100%;
    font-size: 12px;
    text-align: left;
}

.shop-item:hover .coin-tooltip {
    display: block;
}

#generate-coin {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    margin-bottom: 20px;
}

#leaderboard {
    margin-top: 20px;
}

#leaderboard table {
    width: 100%;
    border-collapse: collapse;
}

#leaderboard th, #leaderboard td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

#leaderboard th {
    background-color: #f2f2f2;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 300px;
    text-align: center;
}

#initials {
    margin: 10px 0;
    padding: 5px;
    width: 50px;
    text-align: center;
    font-size: 18px;
}

#submit-score, #play-again {
    margin-top: 10px;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
}

#loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.loading-message {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
}

.shop-item {
    position: relative;
    width: 80px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.shop-item:hover {
    transform: scale(1.05);
}

.shop-item.selected {
    border: 2px solid #4CAF50;
    border-radius: 5px;
    background-color: rgba(76, 175, 80, 0.1);
}