body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}
.container {
    max-width: 950px;
    margin: 50px auto;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    color: #007BFF;
    margin-bottom: 20px;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.description, .instruction, .note {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 20px;
    text-align: left;
}

.instruction strong {
    color: #007BFF;
}

.note strong {
    color: #ff4444;
}

.subject-list {
    list-style-type: none;
    padding: 0;
}
.subject-list li {
    margin: 15px 0;
}
.subject-list a {
    text-decoration: none;
    color: #fff;
    background-color: #007BFF;
    padding: 10px 20px;
    border-radius: 5px;
    display: inline-block;
    width: 200px;
    transition: background-color 0.3s ease;
}
.subject-list a:hover {
    background-color: #0056b3;
}