body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    margin: 0;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #2c3e50;
}

.note {
    background-color: #fff3cd;
    color: #856404;
    padding: 10px;
    border-radius: 4px;
    font-size: 14px;
    margin-bottom: 20px;
    border: 1px solid #ffeeba;
}

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

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

select, input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    background-color: #27ae60;
    color: white;
    border: none;
    padding: 12px;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #219653;
}

.hidden {
    display: none;
}

#resultSection {
    margin-top: 20px;
    padding: 15px;
    background-color: #e8f8f5;
    border-radius: 4px;
    border: 1px solid #a3e4d7;
}