body {
    font-family: Arial, sans-serif;
    background: #eaf3fb;
    margin: 0;
    padding: 0;
    color: #333;
    line-height: 1.6;
}
.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
h2 {
    text-align: center;
    color: #005aab;
}
#timer {
    text-align: center;
    font-size: 20px;
    color: red;
    margin-bottom: 20px;
}
.intro {
    text-align: center;
    margin-bottom: 30px;
}
img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 20px auto;
}
form {
    margin-top: 30px;
}
.question-block {
    margin-bottom: 25px;
}
.question-block label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.option-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
textarea {
    width: 100%;
    padding: 10px;
    font-size: 14px;
}
input[type="submit"] {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    display: block;
    margin: 30px auto 0;
}
input[type="submit"]:hover {
    background-color: #0056b3;
}