.week-selector-container {
    margin: 20px 0;
    padding: 10px;
    background: #f5f5f5;
    border-radius: 5px;
}
.week-selector-form {
    display: flex;
    align-items: center;
}
.week-selector-label {
    margin-right: 10px;
    font-weight: bold;
}
.week-selector {
    width: 260px!important;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
    font-size: 14px;
    cursor: pointer;
}
.week-selector:hover {
    border-color: #aaa;
}
.desktop-view { display: block; }
.mobile-view { display: none; }
.wd-title {
    margin: 20px 0;
    font-size: 18px;
    color: #006699;
    font-weight: bold;
}
@media screen and (max-width: 768px) {
    .desktop-view { display: none; }
    .mobile-view { display: block; }
}
.lich-ngay { 
    border: 1px solid #ccc; 
    padding: 10px; 
    margin-bottom: 10px; 
    border-radius: 6px; 
    background: #f9f9f9; 
}
.lich-ngay h4 { 
    margin: 0 0 10px 0; 
    font-size: 18px; 
    color: #006699; 
}
.lich-item { 
    border-top: 1px dashed #ccc; 
    padding: 8px 0; 
}
.lich-label { 
    font-weight: bold; 
    display: inline-block; 
    width: 80px; 
}
@media screen and (max-width: 768px) {
    .lich-label { 
        width: auto; 
        display: inline-block; 
        margin-bottom: 4px; 
    }
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
}
table, th, td {
    border: 1px solid #ddd;
}
th, td {
    padding: 8px;
    text-align: left;
}
th {
    background-color: #f2f2f2;
}