.student-offer-overlay {
    display: none;
    position: fixed;
    z-index: 99999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.student-offer-box {
    position: relative;
    width: 100%;
    max-width: 450px;
    background: #fff;
    border-radius: 15px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.student-offer-box h2 {
    color: #222;
    font-size: 25px;
    margin-bottom: 10px;
}

.student-offer-box h3 {
    color: #007bff;
    font-size: 36px;
    margin: 10px 0;
}

.student-offer-box p {
    color: #555;
    font-size: 16px;
    line-height: 1.6;
}

.student-offer-close {
    position: absolute;
    right: 15px;
    top: 8px;
    border: none;
    background: transparent;
    font-size: 30px;
    color: #777;
    cursor: pointer;
}

.offer-button {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 25px;
    background: #007bff;
    color: #fff !important;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
}