body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 0;
}

.swp-container {
    max-width: 600px;
    margin: 50px auto;
    background: white;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

h1 {
    text-align: center;
    color: #333;
    font-size: 24px;
    margin-bottom: 20px;
}

.swp-form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: #333;
}

input[type="range"] {
    width: 100%;
    margin: 10px 0;
    -webkit-appearance: none;
    appearance: none;
    height: 5px;
    background: #ddd;
    outline: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}

input[type="range"]:hover {
    opacity: 1;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: #28a745;
    cursor: pointer;
    border-radius: 50%;
}

input[type="range"]::-moz-range-thumb {
    width: 15px;
    height: 15px;
    background: #28a745;
    cursor: pointer;
    border-radius: 50%;
}

output {
    display: block;
    margin-top: 5px;
    font-size: 16px;
    color: #333;
}

.swp-button {
    width: 100%;
    padding: 15px;
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
    margin-top: 10px;
}

.swp-button:hover {
    background-color: #218838;
}

.swp-result {
    margin-top: 30px;
    text-align: center;
    font-size: 18px;
    color: #333;
}

.swp-result p {
    margin: 10px 0;
}