body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e5e5e5;
    color: #333;
}

h1 {
    text-align: center;
    margin: 40px 0;
    color: #333;
    font-size: 2.5em;
    letter-spacing: -1px;
    font-weight: 700;
}

form {
    width: 90%;
    max-width: 600px;
    margin: 40px auto;
    padding: 30px;
    background: #f2f2f2;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

label, select, button, input {
    width: 100%;
    margin: 10px 0;
}

label {
    font-size: 1em;
    font-weight: 500;
    color: #555;
}

input, select {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

input:focus, select:focus {
    border-color: #b0b0b0;
    outline: none;
}

button {
    background-color: #b0b0b0;
    color: #fff;
    padding: 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.2em;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover {
    background-color: #8c8c8c;
    transform: translateY(-2px);
}

.result, .note {
    margin-top: 20px;
    padding: 15px;
    background-color: #e9ecef;
    border-left: 4px solid #b0b0b0;
    white-space: pre-line;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.dropdown {
    position: absolute;
    background-color: #fff;
    border: 1px solid #ccc;
    z-index: 1;
    max-height: 150px;
    overflow-y: auto;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 6px;
}

.dropdown div {
    padding: 12px;
    cursor: pointer;
}

.dropdown div:hover {
    background-color: #f1f1f1;
}