body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    display: flex;
    flex-direction: column;
    width: 80%;
    max-width: 800px; /* Adjusted to fit the content better */
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 2rem; /* Added padding for better spacing */
}

.main-content {
    width: 100%;
    text-align: center;
}

.main-content h1 {
    margin-bottom: 2rem;
    color: #1f82c5;
}

.game-options, .symbol-selection {
    margin-bottom: 2rem;
}

.btn {
    background-color: #1f82c5;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    margin: 0.5rem;
}

.btn:hover {
    background-color: #155a8a;
}

/* Styles for the selected button */
.btn.selected {
    background-color: #00aaff; /* Brighter color for selected state */
    box-shadow: 0 0 10px rgba(0, 160, 255, 0.7); /* Blue shadow */
    transform: scale(1.05); /* Slightly enlarge the selected button */
}

.play-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 1rem 3rem;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.play-btn:hover {
    background-color: #45a049;
}