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

html, body {
    height: 100%;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #ffccdd; 
    font-family: 'Arial', sans-serif;
}

.container {
    text-align: center;
}

h1 {
    font-size: 2em; 
    color: #ff6f61;
    margin-bottom: 20px;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px; 
    width: 40vw; 
    height: 40vw; 
}

.cell {
    background-color: #ffebee; 
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3em; 
    color: #ff6f61;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cell:hover {
    background-color: #ffc1c1; 
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: #ff6f61;
    color: white;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 20px; 
}

button:hover {
    background-color: #ff3d30; 
}

.message {
    font-size: 1.5em;
    margin-top: 20px;
    color: #4caf50; 
}