* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    color: #333;
}

.container {
    width: 100%;
    max-width: 700px;
    margin: 60px auto;
    padding: 20px;
}

.card {
    background: white;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

h1 {
    text-align: center;
    margin-bottom: 15px;
}

h3 {
    margin-top: 30px;
}

.intro {
    text-align: center;
    color: #666;
    line-height: 1.6;
}

.option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 18px;
    margin: 12px 0;
    border: 1px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
}

.option:hover {
    background: #f8f8f8;
}

.option input {
    margin-top: 4px;
}

.option small {
    color: #777;
}

label {
    display: block;
    margin-top: 20px;
    margin-bottom: 8px;
    font-weight: bold;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
}

textarea {
    resize: vertical;
}

button {
    width: 100%;
    margin-top: 25px;
    padding: 14px;
    border: none;
    border-radius: 6px;
    background: #1f6feb;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #1557b0;
}