.preps-calculator-wrapper {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #f9f9f9;
}

.preps-calculator-wrapper .form-group {
    margin-bottom: 15px;
}

.preps-calculator-wrapper label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.preps-calculator-wrapper input,
.preps-calculator-wrapper select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.preps-calculator-wrapper button {
    background: #007cba;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.preps-calculator-wrapper button:hover {
    background: #005a87;
}

#calculation-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
}

.result-high {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.result-medium {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
}

.result-low {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.chance-percentage {
    font-size: 24px;
    font-weight: bold;
    margin: 10px 0;
}