body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: linear-gradient(to right, #a18cd1, #fbc2eb);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.card {
    background-color: white;
    max-width: 400px;
    margin: auto;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    margin-bottom: 0.5rem;
    color: #6a1b9a;
}

h2 {
    color: #333;
    margin: 0.5rem 0;
}

.student-id {
    font-size: 1.1rem;
    color: #555;
}

footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    margin-top: auto;
}