body { 
    background-color: #2c3e50;
    background-image: radial-gradient(circle, #34495e, #1a252f);
    color: white;
    text-align: center; 
    font-family: sans-serif;
    margin: 0;
    padding: 20px;
}

h1 { color: #f1c40f; text-transform: uppercase; }

.arena {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
}

.wybor { 
    cursor: pointer; 
    width: 120px; 
    height: 120px; 
    border: 4px solid #f1c40f; 
    border-radius: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: white;
}

.wybor:hover { 
    transform: scale(1.15) rotate(5deg); 
    box-shadow: 0px 0px 20px #f1c40f;
}

#wynik { 
    font-size: 28px; 
    font-weight: bold; 
    background: rgba(0,0,0,0.3);
    padding: 15px;
    display: inline-block;
    border-radius: 10px;
}

.btn-restart {
    margin-top: 30px;
    padding: 10px 25px;
    font-size: 18px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-restart:hover {
    background-color: #c0392b;
}