body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.6;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 640px;
    margin: 0 auto;
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-top: 10px solid #673ab7; /* Purple accent mostly used in Google Forms/generic forms */
}

h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

.description {
    font-size: 14px;
    margin-bottom: 20px;
}

.required-note {
    color: #d93025;
    font-size: 12px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 24px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #dadce0;
    border-radius: 8px;
}

.form-group:focus-within {
    border-color: #673ab7;
    border-left: 5px solid #673ab7; /* Highlight style */
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    font-size: 16px;
}

.required {
    color: #d93025;
}

.help-text {
    font-size: 12px;
    color: #666;
    margin-bottom: 8px;
}

input[type="text"],
input[type="email"],
input[type="tel"] {
    width: 100%;
    padding: 8px 0;
    border: none;
    border-bottom: 1px solid #dadce0;
    font-size: 14px;
    outline: none;
    transition: border-bottom-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus {
    border-bottom: 2px solid #673ab7;
}

button {
    background-color: #673ab7;
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background-color: #5e35b1;
}

.footer-links {
    margin-top: 40px;
    text-align: center;
    font-size: 12px;
    color: #666;
}

.footer-links a {
    color: #666;
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}