.ttb-rng-container {
    max-width: 500px;
    margin: 40px auto;
    padding: 30px;
    background: #f9f9f9;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-align: center;
    font-family: 'Segoe UI', sans-serif;
}

.ttb-rng-inputs label {
    margin: 0 10px;
}

.ttb-rng-inputs input {
    width: 120px;
    padding: 5px;
    font-size: 16px;
}

#ttb-generate, .ttb-quick-btn {
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    background: #4A90E2;
    color: white;
    cursor: pointer;
}

#ttb-result {
    font-size: 48px;
    font-weight: bold;
    margin-top: 30px;
    color: #333;
}