body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #1a1f2b;
    margin: 0;
    padding: 20px;
    color: #e0e0e0;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background-color: #252c3d;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 255, 163, 0.2);
    border: 1px solid #00ffa3;
}

h1 {
    color: #00ffa3;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 28px;
    text-shadow: 0 0 5px rgba(0, 255, 163, 0.5);
}

.balance {
    font-size: 22px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 20px;
    background-color: #2e3548;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #ffd70033;
}

.input-section {
    margin-bottom: 25px;
}

label {
    color: #b0b9d1;
    font-size: 16px;
    margin-right: 10px;
}

input {
    padding: 10px;
    font-size: 16px;
    background-color: #2e3548;
    border: 1px solid #00ffa3;
    border-radius: 5px;
    color: #e0e0e0;
    width: 120px;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: #ffd700;
}

button {
    padding: 12px 30px;
    background-color: #00ffa3;
    color: #1a1f2b;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
    transition: background-color 0.3s, transform 0.2s;
}

button:hover {
    background-color: #00cc82;
    transform: scale(1.05);
}

button:disabled {
    background-color: #4a5369;
    cursor: not-allowed;
}

.wheel {
    width: 220px;
    height: 220px;
    margin: 20px auto;
    border-radius: 50%;
    border: 5px solid #ffd700;
    box-shadow: 0 0 15px rgba(0, 255, 163, 0.3);
    background-color: #2e3548;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    transition: background-color 0.5s;
}

#result {
    font-size: 20px;
    margin-top: 20px;
    font-weight: bold;
    padding: 10px;
    border-radius: 5px;
}