body {
    background-color: #5a8cc6;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.exam-container {
    max-width: 1100px;
    margin-top: 60px;
    margin-bottom: 60px;
    margin-left: auto;
    margin-right: auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    font-family: 'Segoe UI', sans-serif;
}
.exam-year {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    color: #02275c;
    letter-spacing:1px;
    position:relative;
    margin-top: 50px;
}
.exam-year::after{
    content:"";
    display:block;
    width:70px;
    height:4px;
    background:linear-gradient(90deg,#4a90e2,#02275c);
    margin:15px auto 0;
    border-radius:3px;
}
.exam-note {
    background: #02275c;
    color: #ffffff;
    padding: 18px 22px;
    border-radius: 12px;
    margin-bottom: 35px;
    font-size: 15px;
    line-height: 1.6;
    box-shadow: 0 8px 20px rgba(28, 69, 135, 0.25);
}
.table-wrapper {
    overflow-x: auto;
}
.exam-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}
.exam-table th,
.exam-table td {
    padding: 14px 16px;
    text-align: center;
    border-bottom: 1px solid #e3e8f0;
}
.exam-table thead {
    background-color: #02275c;
    color: #fff;
}
.exam-table tbody tr:nth-child(even) td {
    background-color: #f5f8ff;
}
.exam-table tbody tr:hover td {
    background-color: #e6efff;
    transition: background 0.2s ease;
}
.btn-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: #02275c;
    color: #ffffff;
    text-decoration: none;
    border-radius: 12px;
    font-weight: bold;
    transition: background-color 0.2s ease;
}
@media (max-width: 1150px) {
    .exam-container {
        margin-left: 20px;
        margin-right: 20px;
    }
}
@media (max-width: 800px) {
    .exam-container {
        margin-left: 20px;
        margin-right: 20px;
    }
    .exam-table thead {
        display: none;
    }
    .exam-table, .exam-table tbody, .exam-table tr, .exam-table td {
        display: block;
        width: 100%;
    }
    .exam-table tr {
        margin-bottom: 20px;
        border-radius: 12px;
        background: #ffffff;
        box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        padding: 10px;
    }
    .exam-table td {
        text-align: center;
        padding: 8px 12px;
        border: none;
        border-bottom: 1px solid #e3e8f0;
        position: relative;
        background: #f9f9ff;
        margin-bottom: 4px;
        border-radius: 6px;
    }
    .exam-table td::before {
        content: attr(data-label);
        font-weight: 600;
        display: block;
        margin-bottom: 5px;
        color: #02275c;
    }
    .exam-table td:last-child {
        margin-bottom: 0;
    }
}