body.light {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f4f6f8;
    padding: 30px;
    color: #333;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.table-container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th {
    background: #1e88e5;
    color: #fff;
    padding: 12px;
    text-align: left;
}

table td {
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

table tr:nth-child(even) {
    background: #f9f9f9;
}

table tr:hover {
    background: #e3f2fd;
}

.back-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 18px;
    background: #1e88e5;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
}

.back-btn:hover {
    background: #1565c0;
}


.alert-error {
    background-color: #ffdddd;
    color: #a30000;
    padding: 12px;
    margin-bottom: 20px;
    border-left: 5px solid #d8000c;
    border-radius: 5px;
}