/* Căn giữa toàn bộ trang web */
body {
    font-family:'Times New Roman', Times, serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #ffffff;
}

.main-container {
    border: 2px solid #2b579a; /* Viền xanh biển đậm */
    padding: 30px;
    background-color: #ffffff;
    max-width: 750px;
}

.title {
    text-align: center;
    font-size: 22px;
    font-weight: bold;
    color: #000000;
    margin-bottom: 25px;
    font-family: 'Times New Roman', Times, serif;
    letter-spacing: 1px;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 15px; 
}

.table-box {
    border: 1px solid #060607; 
    padding: 12px 15px;
    font-size: 14px;
    color: #000000;
    line-height: 1.5;
    text-align: left;
    white-space: nowrap; 
    background-color: #ffffff;
}