* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 100vh;
    background-color: bisque;
    color: blueviolet;
    font-family: Arial, sans-serif;
}

header, footer {
    background-color: #004d40;
    color: white;
    text-align: center;
    padding: 10px 0;
    width: 100%;
    transition: background-color 0.3s ease-in-out;
}

header:hover, footer:hover {
    background-color: #00796b;
}

footer {
    margin-top: auto;
    padding: 10px;
    font-size: 14px;
}

header h1, footer p {
    margin: 0;
    padding: 0;
}

h1 {
    margin-bottom: 10px;
}

.score {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: bold;
    background-color: #fff;
    border: 2px solid #00796b;
    border-radius: 10px;
    padding: 10px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    color: #00796b;
    text-align: center;
}

.score span {
    color: #004d40;
    font-size: 32px;
    font-family: 'Courier New', Courier, monospace;
}

canvas {
    background-color: rgba(128, 128, 128, 0.805);
    border: 2px solid #fff;
}

.game-over-screen {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: black;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    color: white;
}

.game-over-screen p {
    margin: 10px 0;
}

#nameInput {
    margin: 10px 0;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    width: 80%;
}

#submitScoreButton {
    background-color: #28a745;
    border: none;
    color: white;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease-in-out;
}

#submitScoreButton:hover {
    background-color: #218838;
}

.history-screen {
    margin-top: 20px;
}

#historyTable {
    width: 100%;
    border-collapse: collapse;
}

#historyTable th, #historyTable td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
}

#historyTable th {
    background-color: #f4f4f4;
    color: #333;
}

#historyTable tr:nth-child(even) {
    background-color: #f9f9f9;
}

#historyTable tr:hover {
    background-color: #f1f1f1;
}