body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #f6f7fb, #e0e4f0);
    font-family: "Poppins", sans-serif;
    color: #333;
}

.container {
    width: 90%;
    max-width: 800px;
    background: #fff;
    margin: 40px auto;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

h1,
h2,
h3 {
    text-align: center;
    color: #4b6bfb;
}

.question {
    background: #fafafa;
    border-radius: 10px;
    padding: 15px;
    margin: 15px 0;
    border: 2px solid transparent;
    transition: border 0.3s;
}

.question h3 {
    color: #333;
}

label {
    display: block;
    margin: 8px 0;
    cursor: pointer;
}

input[type="radio"] {
    margin-right: 8px;
}

.btn {
    width: 100%;
    background: #4b6bfb;
    color: #fff;
    padding: 12px;
    font-size: 18px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn:hover {
    background: #3a54d4;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

td,
th {
    padding: 12px;
    border-bottom: 1px solid #ddd;
    text-align: center;
}

th {
    background: #4b6bfb;
    color: #fff;
}

tr:nth-child(even) {
    background: #f9f9f9;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    .btn {
        font-size: 16px;
    }
}